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vim/src/vim9execute.c
Yegappan Lakshmanan f56f490ca2 patch 9.1.1614: Vim9: possible variable type change 
Problem:  Vim9: possible variable type change when using closure in a
          for loop (Maxim Kim)
Solution: Use unwind_locals(..., TRUE) (Yegappan Lakshmanan)

fixes: #17844
closes: #17951

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-08-09 23:55:34 +02:00

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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* vim9execute.c: execute Vim9 script instructions
*/
#define USING_FLOAT_STUFF
#include "vim.h"
#if defined(FEAT_EVAL) || defined(PROTO)
// When not generating protos this is included in proto.h
#ifdef PROTO
# include "vim9.h"
#endif
// Structure put on ec_trystack when ISN_TRY is encountered.
typedef struct {
int tcd_frame_idx; // ec_frame_idx at ISN_TRY
int tcd_stack_len; // size of ectx.ec_stack at ISN_TRY
int tcd_in_catch; // in catch or finally block
int tcd_did_throw; // set did_throw in :endtry
int tcd_catch_idx; // instruction of the first :catch or :finally
int tcd_finally_idx; // instruction of the :finally block or zero
int tcd_endtry_idx; // instruction of the :endtry
int tcd_caught; // catch block entered
int tcd_cont; // :continue encountered, jump here (minus one)
int tcd_return; // when TRUE return from end of :finally
} trycmd_T;
// Data local to a function.
// On a function call, if not empty, is saved on the stack and restored when
// returning.
typedef struct {
int floc_restore_cmdmod;
cmdmod_T floc_save_cmdmod;
int floc_restore_cmdmod_stacklen;
} funclocal_T;
// Structure to hold a reference to an outer_T, with information of whether it
// was allocated.
typedef struct {
outer_T *or_outer;
partial_T *or_partial; // decrement "or_partial->pt_refcount" later
int or_outer_allocated; // free "or_outer" later
} outer_ref_T;
// A stack is used to store:
// - arguments passed to a :def function
// - info about the calling function, to use when returning
// - local variables
// - temporary values
//
// In detail (FP == Frame Pointer):
// arg1 first argument from caller (if present)
// arg2 second argument from caller (if present)
// extra_arg1 any missing optional argument default value
// FP -> cur_func calling function
// current previous instruction pointer
// frame_ptr previous Frame Pointer
// var1 space for local variable
// var2 space for local variable
// .... fixed space for max. number of local variables
// temp temporary values
// .... flexible space for temporary values (can grow big)
/*
* Execution context.
*/
struct ectx_S {
garray_T ec_stack; // stack of typval_T values
int ec_frame_idx; // index in ec_stack: context of ec_dfunc_idx
int ec_initial_frame_idx; // frame index when called
outer_ref_T *ec_outer_ref; // outer scope used for closures, allocated
funclocal_T ec_funclocal;
garray_T ec_trystack; // stack of trycmd_T values
isn_T *ec_instr; // array with instructions
int ec_dfunc_idx; // current function index
int ec_iidx; // index in ec_instr: instruction to execute
garray_T ec_funcrefs; // partials that might be a closure
int ec_did_emsg_before;
int ec_trylevel_at_start;
where_T ec_where;
};
#ifdef FEAT_PROFILE
// stack of profinfo_T used when profiling.
static garray_T profile_info_ga = {0, 0, sizeof(profinfo_T), 20, NULL};
#endif
// Get pointer to item in the stack.
#define STACK_TV(idx) (((typval_T *)ectx->ec_stack.ga_data) + idx)
// Get pointer to item relative to the bottom of the stack, -1 is the last one.
#define STACK_TV_BOT(idx) (((typval_T *)ectx->ec_stack.ga_data) + ectx->ec_stack.ga_len + (idx))
// Get pointer to a local variable on the stack. Negative for arguments.
#define STACK_TV_VAR(idx) (((typval_T *)ectx->ec_stack.ga_data) + ectx->ec_frame_idx + STACK_FRAME_SIZE + idx)
// Return value for functions used to execute instructions
#define EXEC_FAIL 0
#define EXEC_OK 1
#define EXEC_DONE 2
void
to_string_error(vartype_T vartype)
{
semsg(_(e_cannot_convert_str_to_string), vartype_name(vartype));
}
/*
* Return the number of arguments, including optional arguments and any vararg.
*/
static int
ufunc_argcount(ufunc_T *ufunc)
{
return ufunc->uf_args.ga_len + (ufunc->uf_va_name != NULL ? 1 : 0);
}
/*
* Create a new string from "count" items at the bottom of the stack.
* A trailing NUL is appended.
* When "count" is zero an empty string is added to the stack.
*/
static int
exe_concat(int count, ectx_T *ectx)
{
int idx;
int len = 0;
typval_T *tv;
garray_T ga;
ga_init2(&ga, sizeof(char), 1);
// Preallocate enough space for the whole string to avoid having to grow
// and copy.
for (idx = 0; idx < count; ++idx)
{
tv = STACK_TV_BOT(idx - count);
if (tv->vval.v_string != NULL)
len += (int)STRLEN(tv->vval.v_string);
}
if (ga_grow(&ga, len + 1) == FAIL)
return FAIL;
for (idx = 0; idx < count; ++idx)
{
tv = STACK_TV_BOT(idx - count);
ga_concat(&ga, tv->vval.v_string);
clear_tv(tv);
}
// add a terminating NUL
ga_append(&ga, NUL);
ectx->ec_stack.ga_len -= count - 1;
STACK_TV_BOT(-1)->vval.v_string = ga.ga_data;
return OK;
}
/*
* Create a new list from "count" items at the bottom of the stack.
* When "count" is zero an empty list is added to the stack.
* When "count" is -1 a NULL list is added to the stack.
*/
static int
exe_newlist(int count, ectx_T *ectx)
{
list_T *list = NULL;
int idx;
typval_T *tv;
if (count >= 0)
{
list = list_alloc_with_items(count);
if (list == NULL)
return FAIL;
for (idx = 0; idx < count; ++idx)
list_set_item(list, idx, STACK_TV_BOT(idx - count));
}
if (count > 0)
ectx->ec_stack.ga_len -= count - 1;
else if (GA_GROW_FAILS(&ectx->ec_stack, 1))
{
list_unref(list);
return FAIL;
}
else
++ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_LIST;
tv->vval.v_list = list;
tv->v_lock = 0;
if (list != NULL)
++list->lv_refcount;
return OK;
}
/*
* Create a new tuple from "count" items at the bottom of the stack.
* When "count" is zero an empty tuple is added to the stack.
* When "count" is -1 a NULL tuple is added to the stack.
*/
static int
exe_newtuple(int count, ectx_T *ectx)
{
tuple_T *tuple = NULL;
int idx;
typval_T *tv;
if (count >= 0)
{
tuple = tuple_alloc_with_items(count);
if (tuple == NULL)
return FAIL;
for (idx = 0; idx < count; ++idx)
tuple_set_item(tuple, idx, STACK_TV_BOT(idx - count));
}
if (count > 0)
ectx->ec_stack.ga_len -= count - 1;
else if (GA_GROW_FAILS(&ectx->ec_stack, 1))
{
tuple_unref(tuple);
return FAIL;
}
else
++ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_TUPLE;
tv->vval.v_tuple = tuple;
tv->v_lock = 0;
if (tuple != NULL)
++tuple->tv_refcount;
return OK;
}
/*
* Implementation of ISN_NEWDICT.
* Returns FAIL on total failure, MAYBE on error.
*/
static int
exe_newdict(int count, ectx_T *ectx)
{
dict_T *dict = NULL;
dictitem_T *item;
char_u *key;
int idx;
typval_T *tv;
if (count >= 0)
{
dict = dict_alloc();
if (unlikely(dict == NULL))
return FAIL;
for (idx = 0; idx < count; ++idx)
{
// have already checked key type is VAR_STRING
tv = STACK_TV_BOT(2 * (idx - count));
// check key is unique
key = tv->vval.v_string == NULL ? (char_u *)"" : tv->vval.v_string;
item = dict_find(dict, key, -1);
if (item != NULL)
{
semsg(_(e_duplicate_key_in_dictionary_str), key);
dict_unref(dict);
return MAYBE;
}
item = dictitem_alloc(key);
clear_tv(tv);
if (unlikely(item == NULL))
{
dict_unref(dict);
return FAIL;
}
tv = STACK_TV_BOT(2 * (idx - count) + 1);
item->di_tv = *tv;
item->di_tv.v_lock = 0;
tv->v_type = VAR_UNKNOWN;
if (dict_add(dict, item) == FAIL)
{
// can this ever happen?
dict_unref(dict);
return FAIL;
}
}
}
if (count > 0)
ectx->ec_stack.ga_len -= 2 * count - 1;
else if (GA_GROW_FAILS(&ectx->ec_stack, 1))
{
dict_unref(dict);
return FAIL;
}
else
++ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_DICT;
tv->v_lock = 0;
tv->vval.v_dict = dict;
if (dict != NULL)
++dict->dv_refcount;
return OK;
}
/*
* If debug_tick changed check if "ufunc" has a breakpoint and update
* "uf_has_breakpoint".
*/
void
update_has_breakpoint(ufunc_T *ufunc)
{
if (ufunc->uf_debug_tick == debug_tick)
return;
linenr_T breakpoint;
ufunc->uf_debug_tick = debug_tick;
breakpoint = dbg_find_breakpoint(FALSE, ufunc->uf_name, 0);
ufunc->uf_has_breakpoint = breakpoint > 0;
}
static garray_T dict_stack = GA_EMPTY;
/*
* Put a value on the dict stack. This consumes "tv".
*/
static int
dict_stack_save(typval_T *tv)
{
if (dict_stack.ga_growsize == 0)
ga_init2(&dict_stack, sizeof(typval_T), 10);
if (ga_grow(&dict_stack, 1) == FAIL)
return FAIL;
((typval_T *)dict_stack.ga_data)[dict_stack.ga_len] = *tv;
++dict_stack.ga_len;
return OK;
}
/*
* Get the typval at top of the dict stack.
*/
static typval_T *
dict_stack_get_tv(void)
{
if (dict_stack.ga_len == 0)
return NULL;
return ((typval_T *)dict_stack.ga_data) + dict_stack.ga_len - 1;
}
/*
* Get the dict at top of the dict stack.
*/
static dict_T *
dict_stack_get_dict(void)
{
typval_T *tv;
if (dict_stack.ga_len == 0)
return NULL;
tv = ((typval_T *)dict_stack.ga_data) + dict_stack.ga_len - 1;
if (tv->v_type == VAR_DICT)
return tv->vval.v_dict;
return NULL;
}
/*
* Drop an item from the dict stack.
*/
static void
dict_stack_drop(void)
{
if (dict_stack.ga_len == 0)
{
iemsg("Dict stack underflow");
return;
}
--dict_stack.ga_len;
clear_tv(((typval_T *)dict_stack.ga_data) + dict_stack.ga_len);
}
/*
* Drop items from the dict stack until the length is equal to "len".
*/
static void
dict_stack_clear(int len)
{
while (dict_stack.ga_len > len)
dict_stack_drop();
}
/*
* Get a pointer to useful "pt_outer" of "pt".
*/
static outer_T *
get_pt_outer(partial_T *pt)
{
partial_T *ptref = pt->pt_outer_partial;
if (ptref == NULL)
return &pt->pt_outer;
// partial using partial (recursively)
while (ptref->pt_outer_partial != NULL)
ptref = ptref->pt_outer_partial;
return &ptref->pt_outer;
}
/*
* Check "argcount" arguments on the stack against what "ufunc" expects.
* "off" is the offset of arguments on the stack.
* Return OK or FAIL.
*/
static int
check_ufunc_arg_types(ufunc_T *ufunc, int argcount, int off, ectx_T *ectx)
{
if (ufunc->uf_arg_types == NULL && ufunc->uf_va_type == NULL)
return OK;
typval_T *argv = STACK_TV_BOT(0) - argcount - off;
// The function can change at runtime, check that the argument
// types are correct.
for (int i = 0; i < argcount; ++i)
{
type_T *type = NULL;
// assume a v:none argument, using the default value, is always OK
if (argv[i].v_type == VAR_SPECIAL
&& argv[i].vval.v_number == VVAL_NONE)
continue;
// only pass values to user functions, never types
if (check_typval_is_value(&argv[i]) == FAIL)
return FAIL;
if (i < ufunc->uf_args.ga_len && ufunc->uf_arg_types != NULL)
type = ufunc->uf_arg_types[i];
else if (ufunc->uf_va_type != NULL)
type = ufunc->uf_va_type->tt_member;
if (type != NULL && check_typval_arg_type(type,
&argv[i], NULL, i + 1) == FAIL)
return FAIL;
}
return OK;
}
/*
* Call compiled function "cdf_idx" from compiled code.
* This adds a stack frame and sets the instruction pointer to the start of the
* called function.
* If "pt_arg" is not NULL use "pt_arg->pt_outer" for ec_outer_ref->or_outer.
*
* Stack has:
* - current arguments (already there)
* - omitted optional argument (default values) added here
* - stack frame:
* - pointer to calling function
* - Index of next instruction in calling function
* - previous frame pointer
* - reserved space for local variables
*/
static int
call_dfunc(
int cdf_idx,
partial_T *pt_arg,
int argcount_arg,
ectx_T *ectx)
{
int argcount = argcount_arg;
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data) + cdf_idx;
ufunc_T *ufunc = dfunc->df_ufunc;
int did_emsg_before = did_emsg_cumul + did_emsg;
int arg_to_add;
int vararg_count = 0;
int varcount;
int idx;
estack_T *entry;
funclocal_T *floc = NULL;
int res = OK;
compiletype_T compile_type;
if (dfunc->df_deleted)
{
// don't use ufunc->uf_name, it may have been freed
emsg_funcname(e_function_was_deleted_str,
dfunc->df_name == NULL ? (char_u *)"unknown" : dfunc->df_name);
return FAIL;
}
#ifdef FEAT_PROFILE
if (do_profiling == PROF_YES)
{
if (GA_GROW_OK(&profile_info_ga, 1))
{
profinfo_T *info = ((profinfo_T *)profile_info_ga.ga_data)
+ profile_info_ga.ga_len;
++profile_info_ga.ga_len;
CLEAR_POINTER(info);
profile_may_start_func(info, ufunc,
(((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx)->df_ufunc);
}
}
#endif
// When debugging and using "cont" switches to the not-debugged
// instructions, may need to still compile them.
compile_type = get_compile_type(ufunc);
if (func_needs_compiling(ufunc, compile_type))
{
res = compile_def_function(ufunc, FALSE, compile_type, NULL);
// compile_def_function() may cause def_functions.ga_data to change
dfunc = ((dfunc_T *)def_functions.ga_data) + cdf_idx;
}
if (res == FAIL || INSTRUCTIONS(dfunc) == NULL)
{
if (did_emsg_cumul + did_emsg == did_emsg_before)
semsg(_(e_function_is_not_compiled_str),
printable_func_name(ufunc));
return FAIL;
}
if (ufunc->uf_va_name != NULL)
{
// Need to make a list out of the vararg arguments.
// Stack at time of call with 2 varargs:
// normal_arg
// optional_arg
// vararg_1
// vararg_2
// After creating the list:
// normal_arg
// optional_arg
// vararg-list
// With missing optional arguments we get:
// normal_arg
// After creating the list
// normal_arg
// (space for optional_arg)
// vararg-list
vararg_count = argcount - ufunc->uf_args.ga_len;
if (vararg_count < 0)
vararg_count = 0;
else
argcount -= vararg_count;
if (exe_newlist(vararg_count, ectx) == FAIL)
return FAIL;
vararg_count = 1;
}
arg_to_add = ufunc->uf_args.ga_len - argcount;
if (arg_to_add < 0)
{
semsg(NGETTEXT(e_one_argument_too_many, e_nr_arguments_too_many,
-arg_to_add), -arg_to_add);
return FAIL;
}
else if (arg_to_add > ufunc->uf_def_args.ga_len)
{
int missing = arg_to_add - ufunc->uf_def_args.ga_len;
semsg(NGETTEXT(e_one_argument_too_few, e_nr_arguments_too_few,
missing), missing);
return FAIL;
}
// If this is an object method, the object is just before the arguments.
typval_T *obj = STACK_TV_BOT(0) - argcount - vararg_count - 1;
if (IS_OBJECT_METHOD(ufunc) && !IS_CONSTRUCTOR_METHOD(ufunc)
&& obj->v_type == VAR_OBJECT && obj->vval.v_object == NULL)
{
// If this is not a constructor method, then a valid object is
// needed.
emsg(_(e_using_null_object));
return FAIL;
}
// Check the argument types.
if (check_ufunc_arg_types(ufunc, argcount, vararg_count, ectx) == FAIL)
return FAIL;
// While check_ufunc_arg_types call, def function compilation process may
// run. If so many def functions are compiled, def_functions array may be
// reallocated and dfunc may no longer have valid pointer. Get the object
// pointer from def_functions again here.
dfunc = ((dfunc_T *)def_functions.ga_data) + cdf_idx;
// Reserve space for:
// - missing arguments
// - stack frame
// - local variables
// - if needed: a counter for number of closures created in
// ectx->ec_funcrefs.
varcount = dfunc->df_varcount + dfunc->df_has_closure;
if (GA_GROW_FAILS(&ectx->ec_stack,
arg_to_add + STACK_FRAME_SIZE + varcount))
return FAIL;
// The object pointer is in the execution typval stack. The GA_GROW call
// above may have reallocated the execution typval stack. So the object
// pointer may not be valid anymore. Get the object pointer again from the
// execution stack.
obj = STACK_TV_BOT(0) - argcount - vararg_count - 1;
// If depth of calling is getting too high, don't execute the function.
if (funcdepth_increment() == FAIL)
return FAIL;
++ex_nesting_level;
// Only make a copy of funclocal if it contains something to restore.
if (ectx->ec_funclocal.floc_restore_cmdmod)
{
floc = ALLOC_ONE(funclocal_T);
if (floc == NULL)
return FAIL;
*floc = ectx->ec_funclocal;
ectx->ec_funclocal.floc_restore_cmdmod = FALSE;
}
// Move the vararg-list to below the missing optional arguments.
if (vararg_count > 0 && arg_to_add > 0)
*STACK_TV_BOT(arg_to_add - 1) = *STACK_TV_BOT(-1);
// Reserve space for omitted optional arguments, filled in soon.
for (idx = 0; idx < arg_to_add; ++idx)
STACK_TV_BOT(idx - vararg_count)->v_type = VAR_UNKNOWN;
ectx->ec_stack.ga_len += arg_to_add;
// Store current execution state in stack frame for ISN_RETURN.
STACK_TV_BOT(STACK_FRAME_FUNC_OFF)->vval.v_number = ectx->ec_dfunc_idx;
STACK_TV_BOT(STACK_FRAME_IIDX_OFF)->vval.v_number = ectx->ec_iidx;
STACK_TV_BOT(STACK_FRAME_INSTR_OFF)->vval.v_string = (void *)ectx->ec_instr;
STACK_TV_BOT(STACK_FRAME_OUTER_OFF)->vval.v_string =
(void *)ectx->ec_outer_ref;
STACK_TV_BOT(STACK_FRAME_FUNCLOCAL_OFF)->vval.v_string = (void *)floc;
STACK_TV_BOT(STACK_FRAME_IDX_OFF)->vval.v_number = ectx->ec_frame_idx;
ectx->ec_frame_idx = ectx->ec_stack.ga_len;
// Initialize all local variables to number zero. Also initialize the
// variable that counts how many closures were created. This is used in
// handle_closure_in_use().
int initcount = dfunc->df_varcount + (dfunc->df_has_closure ? 1 : 0);
for (idx = 0; idx < initcount; ++idx)
{
typval_T *tv = STACK_TV_BOT(STACK_FRAME_SIZE + idx);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = 0;
}
ectx->ec_stack.ga_len += STACK_FRAME_SIZE + varcount;
// For an object method move the object from just before the arguments to
// the first local variable.
if (IS_OBJECT_METHOD(ufunc))
{
if (obj->v_type != VAR_OBJECT)
{
semsg(_(e_internal_error_str), "type in stack is not an object");
return FAIL;
}
*STACK_TV_VAR(0) = *obj;
obj->v_type = VAR_UNKNOWN;
}
partial_T *pt = pt_arg != NULL ? pt_arg : ufunc->uf_partial;
if (pt != NULL || (ufunc->uf_flags & FC_CLOSURE))
{
outer_ref_T *ref = ALLOC_CLEAR_ONE(outer_ref_T);
if (ref == NULL)
return FAIL;
if (pt != NULL)
{
ref->or_outer = get_pt_outer(pt);
++pt->pt_refcount;
ref->or_partial = pt;
}
else
{
ref->or_outer = ALLOC_CLEAR_ONE(outer_T);
if (unlikely(ref->or_outer == NULL))
{
vim_free(ref);
return FAIL;
}
ref->or_outer_allocated = TRUE;
ref->or_outer->out_stack = &ectx->ec_stack;
ref->or_outer->out_frame_idx = ectx->ec_frame_idx;
if (ectx->ec_outer_ref != NULL)
ref->or_outer->out_up = ectx->ec_outer_ref->or_outer;
}
ectx->ec_outer_ref = ref;
}
else
ectx->ec_outer_ref = NULL;
++ufunc->uf_calls;
// Set execution state to the start of the called function.
ectx->ec_dfunc_idx = cdf_idx;
ectx->ec_instr = INSTRUCTIONS(dfunc);
entry = estack_push_ufunc(ufunc, 1);
if (entry != NULL)
{
// Set the script context to the script where the function was defined.
// Save the current context so it can be restored on return.
entry->es_save_sctx = current_sctx;
current_sctx = ufunc->uf_script_ctx;
}
// Start execution at the first instruction.
ectx->ec_iidx = 0;
return OK;
}
// Double linked list of funcstack_T in use.
static funcstack_T *first_funcstack = NULL;
static void
add_funcstack_to_list(funcstack_T *funcstack)
{
// Link in list of funcstacks.
if (first_funcstack != NULL)
first_funcstack->fs_prev = funcstack;
funcstack->fs_next = first_funcstack;
funcstack->fs_prev = NULL;
first_funcstack = funcstack;
}
static void
remove_funcstack_from_list(funcstack_T *funcstack)
{
if (funcstack->fs_prev == NULL)
first_funcstack = funcstack->fs_next;
else
funcstack->fs_prev->fs_next = funcstack->fs_next;
if (funcstack->fs_next != NULL)
funcstack->fs_next->fs_prev = funcstack->fs_prev;
}
/*
* Used when returning from a function: Check if any closure is still
* referenced. If so then move the arguments and variables to a separate piece
* of stack to be used when the closure is called.
* When "free_arguments" is TRUE the arguments are to be freed.
* Returns FAIL when out of memory.
*/
static int
handle_closure_in_use(ectx_T *ectx, int free_arguments)
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx;
int argcount;
int top;
int idx;
typval_T *tv;
int closure_in_use = FALSE;
garray_T *gap = &ectx->ec_funcrefs;
varnumber_T closure_count;
if (dfunc->df_ufunc == NULL)
return OK; // function was freed
if (dfunc->df_has_closure == 0)
return OK; // no closures
tv = STACK_TV(ectx->ec_frame_idx + STACK_FRAME_SIZE + dfunc->df_varcount);
closure_count = tv->vval.v_number;
if (closure_count == 0)
return OK; // no funcrefs created
// Compute "top": the first entry in the stack used by the function.
// This is the first argument (after that comes the stack frame and then
// the local variables).
argcount = ufunc_argcount(dfunc->df_ufunc);
top = ectx->ec_frame_idx - argcount;
// Check if any created closure is still in use.
for (idx = 0; idx < closure_count; ++idx)
{
partial_T *pt;
int off = gap->ga_len - closure_count + idx;
if (off < 0)
continue; // count is off or already done
pt = ((partial_T **)gap->ga_data)[off];
if (pt->pt_refcount > 1)
{
int refcount = pt->pt_refcount;
int i;
// A Reference in a local variable doesn't count, it gets
// unreferenced on return.
for (i = 0; i < dfunc->df_varcount; ++i)
{
typval_T *stv = STACK_TV(ectx->ec_frame_idx
+ STACK_FRAME_SIZE + i);
if (stv->v_type == VAR_PARTIAL && pt == stv->vval.v_partial)
--refcount;
}
if (refcount > 1)
{
closure_in_use = TRUE;
break;
}
}
}
if (closure_in_use)
{
funcstack_T *funcstack = ALLOC_CLEAR_ONE(funcstack_T);
typval_T *stack;
// A closure is using the arguments and/or local variables.
// Move them to the called function.
if (funcstack == NULL)
return FAIL;
funcstack->fs_var_offset = argcount + STACK_FRAME_SIZE;
funcstack->fs_ga.ga_len = funcstack->fs_var_offset
+ dfunc->df_varcount;
stack = ALLOC_CLEAR_MULT(typval_T, funcstack->fs_ga.ga_len);
funcstack->fs_ga.ga_data = stack;
if (stack == NULL)
{
vim_free(funcstack);
return FAIL;
}
add_funcstack_to_list(funcstack);
// Move or copy the arguments.
for (idx = 0; idx < argcount; ++idx)
{
tv = STACK_TV(top + idx);
if (free_arguments)
{
*(stack + idx) = *tv;
tv->v_type = VAR_UNKNOWN;
}
else
copy_tv(tv, stack + idx);
}
// Skip the stack frame.
// Move the local variables.
for (idx = 0; idx < dfunc->df_varcount; ++idx)
{
tv = STACK_TV(ectx->ec_frame_idx + STACK_FRAME_SIZE + idx);
// A partial created for a local function, that is also used as a
// local variable, has a reference count for the variable, thus
// will never go down to zero. When all these refcounts are one
// then the funcstack is unused. We need to count how many we have
// so we know when to check.
if (tv->v_type == VAR_PARTIAL && tv->vval.v_partial != NULL)
{
int i;
for (i = 0; i < closure_count; ++i)
if (tv->vval.v_partial == ((partial_T **)gap->ga_data)[
gap->ga_len - closure_count + i])
++funcstack->fs_min_refcount;
}
*(stack + funcstack->fs_var_offset + idx) = *tv;
tv->v_type = VAR_UNKNOWN;
}
for (idx = 0; idx < closure_count; ++idx)
{
partial_T *pt = ((partial_T **)gap->ga_data)[gap->ga_len
- closure_count + idx];
if (pt->pt_refcount > 1)
{
++funcstack->fs_refcount;
pt->pt_funcstack = funcstack;
pt->pt_outer.out_stack = &funcstack->fs_ga;
pt->pt_outer.out_frame_idx = ectx->ec_frame_idx - top;
}
}
}
for (idx = 0; idx < closure_count; ++idx)
partial_unref(((partial_T **)gap->ga_data)[gap->ga_len
- closure_count + idx]);
gap->ga_len -= closure_count;
if (gap->ga_len == 0)
ga_clear(gap);
return OK;
}
/*
* Called when a partial is freed or its reference count goes down to one. The
* funcstack may be the only reference to the partials in the local variables.
* Go over all of them, the funcref and can be freed if all partials
* referencing the funcstack have a reference count of one.
* Returns TRUE if the funcstack is freed, the partial referencing it will then
* also have been freed.
*/
int
funcstack_check_refcount(funcstack_T *funcstack)
{
int i;
garray_T *gap = &funcstack->fs_ga;
int done = 0;
typval_T *stack;
if (funcstack->fs_refcount > funcstack->fs_min_refcount)
return FALSE;
for (i = funcstack->fs_var_offset; i < gap->ga_len; ++i)
{
typval_T *tv = ((typval_T *)gap->ga_data) + i;
if (tv->v_type == VAR_PARTIAL && tv->vval.v_partial != NULL
&& tv->vval.v_partial->pt_funcstack == funcstack
&& tv->vval.v_partial->pt_refcount == 1)
++done;
}
if (done != funcstack->fs_min_refcount)
return FALSE;
stack = gap->ga_data;
// All partials referencing the funcstack have a reference count of
// one, thus the funcstack is no longer of use.
for (i = 0; i < gap->ga_len; ++i)
clear_tv(stack + i);
vim_free(stack);
remove_funcstack_from_list(funcstack);
vim_free(funcstack);
return TRUE;
}
/*
* For garbage collecting: set references in all variables referenced by
* all funcstacks.
*/
int
set_ref_in_funcstacks(int copyID)
{
funcstack_T *funcstack;
for (funcstack = first_funcstack; funcstack != NULL;
funcstack = funcstack->fs_next)
{
typval_T *stack = funcstack->fs_ga.ga_data;
int i;
for (i = 0; i < funcstack->fs_ga.ga_len; ++i)
if (set_ref_in_item(stack + i, copyID, NULL, NULL, NULL))
return TRUE; // abort
}
return FALSE;
}
// Ugly static to avoid passing the execution context around through many
// layers.
static ectx_T *current_ectx = NULL;
/*
* Return TRUE if currently executing a :def function.
* Can be used by builtin functions only.
*/
int
in_def_function(void)
{
return current_ectx != NULL;
}
/*
* If executing a class/object method, then fill in the lval_T.
* Set lr_tv to the executing item, and lr_exec_class to the executing class;
* use free_tv and class_unref when finished with the lval_root.
* For use by builtin functions.
*
* Return FAIL and do nothing if not executing in a class; otherwise OK.
*/
int
fill_exec_lval_root(lval_root_T *root)
{
ectx_T *ectx = current_ectx;
if (ectx != NULL)
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ current_ectx->ec_dfunc_idx;
ufunc_T *ufunc = dfunc->df_ufunc;
if (ufunc->uf_class != NULL) // executing a method?
{
typval_T *tv = alloc_tv();
if (tv != NULL)
{
CLEAR_POINTER(root);
root->lr_tv = tv;
copy_tv(STACK_TV_VAR(0), root->lr_tv);
root->lr_cl_exec = ufunc->uf_class;
++root->lr_cl_exec->class_refcount;
return OK;
}
}
}
return FAIL;
}
/*
* Clear "current_ectx" and return the previous value. To be used when calling
* a user function.
*/
ectx_T *
clear_current_ectx(void)
{
ectx_T *r = current_ectx;
current_ectx = NULL;
return r;
}
void
restore_current_ectx(ectx_T *ectx)
{
if (current_ectx != NULL)
iemsg("Restoring current_ectx while it is not NULL");
current_ectx = ectx;
}
/*
* Add an entry for a deferred function call to the currently executing
* function.
* Return the list or NULL when failed.
*/
static list_T *
add_defer_item(int var_idx, int argcount, ectx_T *ectx)
{
typval_T *defer_tv = STACK_TV_VAR(var_idx);
list_T *defer_l;
list_T *l;
typval_T listval;
if (defer_tv->v_type != VAR_LIST)
{
// first time, allocate the list
if (rettv_list_alloc(defer_tv) == FAIL)
return NULL;
}
defer_l = defer_tv->vval.v_list;
l = list_alloc_with_items(argcount + 1);
if (l == NULL)
return NULL;
listval.v_type = VAR_LIST;
listval.vval.v_list = l;
listval.v_lock = 0;
if (list_insert_tv(defer_l, &listval, defer_l->lv_first) == FAIL)
{
vim_free(l);
return NULL;
}
return l;
}
/*
* Handle ISN_DEFER. Stack has a function reference and "argcount" arguments.
* The local variable that lists deferred functions is "var_idx".
* Returns OK or FAIL.
*/
static int
defer_command(int var_idx, int argcount, ectx_T *ectx)
{
list_T *l = add_defer_item(var_idx, argcount, ectx);
int i;
typval_T *func_tv;
if (l == NULL)
return FAIL;
func_tv = STACK_TV_BOT(-argcount - 1);
if (func_tv->v_type != VAR_PARTIAL && func_tv->v_type != VAR_FUNC)
{
semsg(_(e_expected_str_but_got_str),
"function or partial",
vartype_name(func_tv->v_type));
return FAIL;
}
list_set_item(l, 0, func_tv);
for (i = 0; i < argcount; ++i)
list_set_item(l, i + 1, STACK_TV_BOT(-argcount + i));
ectx->ec_stack.ga_len -= argcount + 1;
return OK;
}
/*
* Add a deferred call for "name" with arguments "argvars[argcount]".
* Consumes "name", also on failure.
* Only to be called when in_def_function() returns TRUE.
*/
int
add_defer_function(char_u *name, int argcount, typval_T *argvars)
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ current_ectx->ec_dfunc_idx;
list_T *l;
typval_T func_tv;
int i;
if (dfunc->df_defer_var_idx == 0)
{
iemsg("df_defer_var_idx is zero");
vim_free(name);
return FAIL;
}
l = add_defer_item(dfunc->df_defer_var_idx - 1, argcount, current_ectx);
if (l == NULL)
{
vim_free(name);
return FAIL;
}
func_tv.v_type = VAR_FUNC;
func_tv.v_lock = 0;
func_tv.vval.v_string = name;
list_set_item(l, 0, &func_tv);
for (i = 0; i < argcount; ++i)
list_set_item(l, i + 1, argvars + i);
return OK;
}
/*
* Invoked when returning from a function: Invoke any deferred calls.
*/
static void
invoke_defer_funcs(ectx_T *ectx)
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx;
typval_T *defer_tv = STACK_TV_VAR(dfunc->df_defer_var_idx - 1);
listitem_T *li;
if (defer_tv->v_type != VAR_LIST)
return; // no function added
FOR_ALL_LIST_ITEMS(defer_tv->vval.v_list, li)
{
list_T *l = li->li_tv.vval.v_list;
typval_T rettv;
typval_T argvars[MAX_FUNC_ARGS];
int i;
listitem_T *arg_li = l->lv_first;
typval_T *functv = &l->lv_first->li_tv;
int argcount = l->lv_len - 1;
if (functv->vval.v_string == NULL)
// already being called, can happen if function does ":qa"
continue;
for (i = 0; i < argcount; ++i)
{
arg_li = arg_li->li_next;
argvars[i] = arg_li->li_tv;
}
funcexe_T funcexe;
CLEAR_FIELD(funcexe);
funcexe.fe_evaluate = TRUE;
rettv.v_type = VAR_UNKNOWN;
if (functv->v_type == VAR_PARTIAL)
{
funcexe.fe_partial = functv->vval.v_partial;
funcexe.fe_object = functv->vval.v_partial->pt_obj;
if (funcexe.fe_object != NULL)
++funcexe.fe_object->obj_refcount;
}
char_u *name = functv->vval.v_string;
functv->vval.v_string = NULL;
// If the deferred function is called after an exception, then only the
// first statement in the function will be executed (because of the
// exception). So save and restore the try/catch/throw exception
// state.
exception_state_T estate;
exception_state_save(&estate);
exception_state_clear();
(void)call_func(name, -1, &rettv, argcount, argvars, &funcexe);
exception_state_restore(&estate);
clear_tv(&rettv);
vim_free(name);
}
}
/*
* Return from the current function.
*/
static int
func_return(ectx_T *ectx)
{
int idx;
int ret_idx;
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx;
int argcount = ufunc_argcount(dfunc->df_ufunc);
estack_T *entry;
int prev_dfunc_idx = STACK_TV(ectx->ec_frame_idx
+ STACK_FRAME_FUNC_OFF)->vval.v_number;
funclocal_T *floc;
#ifdef FEAT_PROFILE
dfunc_T *prev_dfunc = ((dfunc_T *)def_functions.ga_data)
+ prev_dfunc_idx;
if (do_profiling == PROF_YES)
{
ufunc_T *caller = prev_dfunc->df_ufunc;
if (dfunc->df_ufunc->uf_profiling
|| (caller != NULL && caller->uf_profiling))
{
profile_may_end_func(((profinfo_T *)profile_info_ga.ga_data)
+ profile_info_ga.ga_len - 1, dfunc->df_ufunc, caller);
--profile_info_ga.ga_len;
}
}
#endif
if (dfunc->df_defer_var_idx > 0)
invoke_defer_funcs(ectx);
// No check for uf_refcount being zero, cannot think of a way that would
// happen.
--dfunc->df_ufunc->uf_calls;
// execution context goes one level up
entry = estack_pop();
if (entry != NULL)
current_sctx = entry->es_save_sctx;
if (handle_closure_in_use(ectx, TRUE) == FAIL)
return FAIL;
// Clear the arguments. If this was an object method also clear the
// object, it is just before the arguments.
int top = ectx->ec_frame_idx - argcount;
if (IS_OBJECT_METHOD(dfunc->df_ufunc))
--top;
for (idx = top; idx < ectx->ec_frame_idx; ++idx)
clear_tv(STACK_TV(idx));
// Clear local variables and temp values, but not the return value.
for (idx = ectx->ec_frame_idx + STACK_FRAME_SIZE;
idx < ectx->ec_stack.ga_len - 1; ++idx)
clear_tv(STACK_TV(idx));
// The return value should be on top of the stack. However, when aborting
// it may not be there and ec_frame_idx is the top of the stack.
ret_idx = ectx->ec_stack.ga_len - 1;
if (ret_idx == ectx->ec_frame_idx + STACK_FRAME_IDX_OFF)
ret_idx = 0;
if (ectx->ec_outer_ref != NULL)
{
if (ectx->ec_outer_ref->or_outer_allocated)
vim_free(ectx->ec_outer_ref->or_outer);
partial_unref(ectx->ec_outer_ref->or_partial);
vim_free(ectx->ec_outer_ref);
}
// Restore the previous frame.
ectx->ec_dfunc_idx = prev_dfunc_idx;
ectx->ec_iidx = STACK_TV(ectx->ec_frame_idx
+ STACK_FRAME_IIDX_OFF)->vval.v_number;
ectx->ec_instr = (void *)STACK_TV(ectx->ec_frame_idx
+ STACK_FRAME_INSTR_OFF)->vval.v_string;
ectx->ec_outer_ref = (void *)STACK_TV(ectx->ec_frame_idx
+ STACK_FRAME_OUTER_OFF)->vval.v_string;
floc = (void *)STACK_TV(ectx->ec_frame_idx
+ STACK_FRAME_FUNCLOCAL_OFF)->vval.v_string;
// restoring ec_frame_idx must be last
ectx->ec_frame_idx = STACK_TV(ectx->ec_frame_idx
+ STACK_FRAME_IDX_OFF)->vval.v_number;
if (floc == NULL)
ectx->ec_funclocal.floc_restore_cmdmod = FALSE;
else
{
ectx->ec_funclocal = *floc;
vim_free(floc);
}
if (ret_idx > 0)
{
// Reset the stack to the position before the call, with a spot for the
// return value, moved there from above the frame.
ectx->ec_stack.ga_len = top + 1;
*STACK_TV_BOT(-1) = *STACK_TV(ret_idx);
}
else
// Reset the stack to the position before the call.
ectx->ec_stack.ga_len = top;
funcdepth_decrement();
--ex_nesting_level;
return OK;
}
/*
* Prepare arguments and rettv for calling a builtin or user function.
*/
static int
call_prepare(int argcount, typval_T *argvars, ectx_T *ectx)
{
int idx;
typval_T *tv;
// Move arguments from bottom of the stack to argvars[] and add terminator.
for (idx = 0; idx < argcount; ++idx)
argvars[idx] = *STACK_TV_BOT(idx - argcount);
argvars[argcount].v_type = VAR_UNKNOWN;
// Result replaces the arguments on the stack.
if (argcount > 0)
ectx->ec_stack.ga_len -= argcount - 1;
else if (GA_GROW_FAILS(&ectx->ec_stack, 1))
return FAIL;
else
++ectx->ec_stack.ga_len;
// Default return value is zero.
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = 0;
tv->v_lock = 0;
return OK;
}
/*
* Call a builtin function by index.
*/
static int
call_bfunc(int func_idx, int argcount, ectx_T *ectx)
{
typval_T argvars[MAX_FUNC_ARGS];
int idx;
int did_emsg_before = did_emsg;
ectx_T *prev_ectx = current_ectx;
char *save_func_name = ectx->ec_where.wt_func_name;
if (call_prepare(argcount, argvars, ectx) == FAIL)
return FAIL;
ectx->ec_where.wt_func_name = internal_func_name(func_idx);
// Call the builtin function. Set "current_ectx" so that when it
// recursively invokes call_def_function() a closure context can be set.
current_ectx = ectx;
call_internal_func_by_idx(func_idx, argvars, STACK_TV_BOT(-1));
current_ectx = prev_ectx;
ectx->ec_where.wt_func_name = save_func_name;
// Clear the arguments.
for (idx = 0; idx < argcount; ++idx)
clear_tv(&argvars[idx]);
if (did_emsg > did_emsg_before)
return FAIL;
return OK;
}
/*
* Execute a user defined function.
* If the function is compiled this will add a stack frame and set the
* instruction pointer at the start of the function.
* Otherwise the function is called here.
* If "pt" is not null use "pt->pt_outer" for ec_outer_ref->or_outer.
* "iptr" can be used to replace the instruction with a more efficient one.
*/
static int
call_ufunc(
ufunc_T *ufunc,
partial_T *pt,
int argcount,
ectx_T *ectx,
isn_T *iptr,
dict_T *selfdict)
{
typval_T argvars[MAX_FUNC_ARGS];
funcexe_T funcexe;
funcerror_T error;
int idx;
int did_emsg_before = did_emsg;
compiletype_T compile_type = get_compile_type(ufunc);
if (func_needs_compiling(ufunc, compile_type)
&& compile_def_function(ufunc, FALSE, compile_type, NULL)
== FAIL)
return FAIL;
if (ufunc->uf_def_status == UF_COMPILED)
{
error = check_user_func_argcount(ufunc, argcount);
if (error != FCERR_UNKNOWN)
{
if (error == FCERR_TOOMANY)
semsg(_(e_too_many_arguments_for_function_str),
printable_func_name(ufunc));
else
semsg(_(e_not_enough_arguments_for_function_str),
printable_func_name(ufunc));
return FAIL;
}
// The function has been compiled, can call it quickly. For a function
// that was defined later: we can call it directly next time.
if (iptr != NULL)
{
delete_instr(iptr);
iptr->isn_type = ISN_DCALL;
iptr->isn_arg.dfunc.cdf_idx = ufunc->uf_dfunc_idx;
iptr->isn_arg.dfunc.cdf_argcount = argcount;
}
return call_dfunc(ufunc->uf_dfunc_idx, pt, argcount, ectx);
}
if (call_prepare(argcount, argvars, ectx) == FAIL)
return FAIL;
CLEAR_FIELD(funcexe);
funcexe.fe_evaluate = TRUE;
funcexe.fe_selfdict = selfdict != NULL ? selfdict : dict_stack_get_dict();
// Call the user function. Result goes in last position on the stack.
error = call_user_func_check(ufunc, argcount, argvars,
STACK_TV_BOT(-1), &funcexe, funcexe.fe_selfdict);
// Clear the arguments.
for (idx = 0; idx < argcount; ++idx)
clear_tv(&argvars[idx]);
if (error != FCERR_NONE)
{
user_func_error(error, printable_func_name(ufunc),
funcexe.fe_found_var);
return FAIL;
}
if (did_emsg > did_emsg_before)
// Error other than from calling the function itself.
return FAIL;
return OK;
}
/*
* If command modifiers were applied restore them.
*/
static void
may_restore_cmdmod(funclocal_T *funclocal)
{
if (funclocal->floc_restore_cmdmod)
{
cmdmod.cmod_filter_regmatch.regprog = NULL;
undo_cmdmod(&cmdmod);
cmdmod = funclocal->floc_save_cmdmod;
funclocal->floc_restore_cmdmod = FALSE;
}
}
/*
* Return TRUE if an error was given (not caught in try/catch) or CTRL-C was
* pressed.
*/
static int
vim9_aborting(int prev_uncaught_emsg)
{
return uncaught_emsg > prev_uncaught_emsg || got_int || did_throw;
}
/*
* Execute a function by "name".
* This can be a builtin function or a user function.
* "iptr" can be used to replace the instruction with a more efficient one.
* Returns FAIL if not found without an error message.
*/
static int
call_by_name(
char_u *name,
int argcount,
ectx_T *ectx,
isn_T *iptr,
dict_T *selfdict)
{
ufunc_T *ufunc;
if (builtin_function(name, -1))
{
int func_idx = find_internal_func(name);
if (func_idx < 0) // Impossible?
return FAIL;
if (check_internal_func(func_idx, argcount) < 0)
return FAIL;
return call_bfunc(func_idx, argcount, ectx);
}
char_u cc = NUL;
char_u *start_bracket = generic_func_find_open_bracket(name);
if (start_bracket != NULL)
{
cc = *start_bracket;
*start_bracket = NUL;
}
ufunc = find_func(name, FALSE);
if (ufunc == NULL)
{
int prev_uncaught_emsg = uncaught_emsg;
if (script_autoload(name, TRUE))
// loaded a package, search for the function again
ufunc = find_func(name, FALSE);
if (vim9_aborting(prev_uncaught_emsg))
{
if (start_bracket != NULL)
*start_bracket = cc;
return FAIL; // bail out if loading the script caused an error
}
}
if (start_bracket != NULL)
*start_bracket = cc;
if (ufunc != NULL)
{
if (IS_GENERIC_FUNC(ufunc))
{
if (start_bracket != NULL)
ufunc = find_generic_func(ufunc, name, &start_bracket);
else
{
emsg_funcname(e_generic_func_missing_type_args_str, name);
ufunc = NULL;
}
if (ufunc == NULL)
return FAIL;
}
else if (start_bracket != NULL)
{
emsg_funcname(e_not_a_generic_function_str, name);
return FAIL;
}
if (check_ufunc_arg_types(ufunc, argcount, 0, ectx) == FAIL)
return FAIL;
return call_ufunc(ufunc, NULL, argcount, ectx, iptr, selfdict);
}
return FAIL;
}
static int
call_partial(
typval_T *tv,
int argcount_arg,
ectx_T *ectx)
{
int argcount = argcount_arg;
char_u *name = NULL;
int called_emsg_before = called_emsg;
int res = FAIL;
dict_T *selfdict = NULL;
if (tv->v_type == VAR_PARTIAL)
{
partial_T *pt = tv->vval.v_partial;
int i;
if (pt->pt_obj != NULL)
{
// partial with an object method. Push the object before the
// function arguments.
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
return FAIL;
for (i = 1; i <= argcount; ++i)
*STACK_TV_BOT(-i + 1) = *STACK_TV_BOT(-i);
typval_T *obj_tv = STACK_TV_BOT(-argcount);
obj_tv->v_type = VAR_OBJECT;
obj_tv->v_lock = 0;
obj_tv->vval.v_object = pt->pt_obj;
++pt->pt_obj->obj_refcount;
++ectx->ec_stack.ga_len;
}
if (pt->pt_argc > 0)
{
// Make space for arguments from the partial, shift the "argcount"
// arguments up.
if (GA_GROW_FAILS(&ectx->ec_stack, pt->pt_argc))
return FAIL;
for (i = 1; i <= argcount; ++i)
*STACK_TV_BOT(-i + pt->pt_argc) = *STACK_TV_BOT(-i);
ectx->ec_stack.ga_len += pt->pt_argc;
argcount += pt->pt_argc;
// copy the arguments from the partial onto the stack
for (i = 0; i < pt->pt_argc; ++i)
copy_tv(&pt->pt_argv[i], STACK_TV_BOT(-argcount + i));
}
selfdict = pt->pt_dict;
if (pt->pt_func != NULL)
return call_ufunc(pt->pt_func, pt, argcount, ectx, NULL, selfdict);
name = pt->pt_name;
}
else if (tv->v_type == VAR_FUNC)
name = tv->vval.v_string;
if (name != NULL)
{
char_u fname_buf[FLEN_FIXED + 1];
char_u *tofree = NULL;
funcerror_T error = FCERR_NONE;
char_u *fname;
// May need to translate <SNR>123_ to K_SNR.
fname = fname_trans_sid(name, fname_buf, &tofree, &error);
if (error != FCERR_NONE)
res = FAIL;
else
res = call_by_name(fname, argcount, ectx, NULL, selfdict);
vim_free(tofree);
}
if (res == FAIL)
{
if (called_emsg == called_emsg_before)
emsg_funcname(e_unknown_function_str,
name == NULL ? (char_u *)"[unknown]" : name);
return FAIL;
}
return OK;
}
/*
* Check if "lock" is VAR_LOCKED or VAR_FIXED. If so give an error and return
* TRUE.
*/
static int
error_if_locked(int lock, char *error)
{
if (lock & (VAR_LOCKED | VAR_FIXED))
{
emsg(_(error));
return TRUE;
}
return FALSE;
}
/*
* Give an error if "tv" is not a number and return FAIL.
*/
static int
check_for_number(typval_T *tv)
{
if (tv->v_type != VAR_NUMBER)
{
semsg(_(e_expected_str_but_got_str),
vartype_name(VAR_NUMBER), vartype_name(tv->v_type));
return FAIL;
}
return OK;
}
/*
* Store "tv" in variable "name".
* This is for s: and g: variables.
*/
static void
store_var(char_u *name, typval_T *tv)
{
funccal_entry_T entry;
int flags = ASSIGN_DECL;
if (tv->v_lock)
flags |= ASSIGN_CONST;
save_funccal(&entry);
set_var_const(name, 0, NULL, tv, FALSE, flags, 0);
restore_funccal();
}
/*
* Convert "tv" to a string.
* Return FAIL if not allowed.
*/
static int
do_2string(typval_T *tv, int is_2string_any, int tostring_flags)
{
if (tv->v_type == VAR_STRING)
return OK;
char_u *str;
if (is_2string_any)
{
switch (tv->v_type)
{
case VAR_SPECIAL:
case VAR_BOOL:
case VAR_NUMBER:
case VAR_FLOAT:
case VAR_DICT:
case VAR_BLOB: break;
case VAR_LIST:
if (tostring_flags & TOSTRING_TOLERANT)
{
char_u *s, *e, *p;
garray_T ga;
ga_init2(&ga, sizeof(char_u *), 1);
// Convert to NL separated items, then
// escape the items and replace the NL with
// a space.
str = typval2string(tv, TRUE);
if (str == NULL)
return FAIL;
s = str;
while ((e = vim_strchr(s, '\n')) != NULL)
{
*e = NUL;
p = vim_strsave_fnameescape(s,
VSE_NONE);
if (p != NULL)
{
ga_concat(&ga, p);
ga_concat(&ga, (char_u *)" ");
vim_free(p);
}
s = e + 1;
}
vim_free(str);
clear_tv(tv);
tv->v_type = VAR_STRING;
tv->vval.v_string = ga.ga_data;
return OK;
}
if (tostring_flags & TOSTRING_INTERPOLATE)
break;
// FALLTHROUGH
default: to_string_error(tv->v_type);
return FAIL;
}
}
str = typval_tostring(tv, TRUE);
clear_tv(tv);
tv->v_type = VAR_STRING;
tv->vval.v_string = str;
return OK;
}
/*
* When the value of "sv" is a null list of dict, allocate it.
*/
static void
allocate_if_null(svar_T *sv)
{
typval_T *tv = sv->sv_tv;
switch (tv->v_type)
{
case VAR_LIST:
if (tv->vval.v_list == NULL && sv->sv_type != &t_list_empty)
(void)rettv_list_alloc(tv);
break;
case VAR_TUPLE:
if (tv->vval.v_tuple == NULL && sv->sv_type != &t_tuple_empty)
(void)rettv_tuple_alloc(tv);
break;
case VAR_DICT:
if (tv->vval.v_dict == NULL && sv->sv_type != &t_dict_empty)
(void)rettv_dict_alloc(tv);
break;
case VAR_BLOB:
if (tv->vval.v_blob == NULL && sv->sv_type != &t_blob_null)
(void)rettv_blob_alloc(tv);
break;
default:
break;
}
}
/*
* Return the character "str[index]" where "index" is the character index,
* including composing characters.
* If "index" is out of range NULL is returned.
*/
char_u *
char_from_string(char_u *str, varnumber_T index)
{
size_t nbyte = 0;
varnumber_T nchar = index;
size_t slen;
if (str == NULL)
return NULL;
slen = STRLEN(str);
// Do the same as for a list: a negative index counts from the end.
// Optimization to check the first byte to be below 0x80 (and no composing
// character follows) makes this a lot faster.
if (index < 0)
{
int clen = 0;
for (nbyte = 0; nbyte < slen; ++clen)
{
if (str[nbyte] < 0x80 && str[nbyte + 1] < 0x80)
++nbyte;
else if (enc_utf8)
nbyte += utfc_ptr2len(str + nbyte);
else
nbyte += mb_ptr2len(str + nbyte);
}
nchar = clen + index;
if (nchar < 0)
// unlike list: index out of range results in empty string
return NULL;
}
for (nbyte = 0; nchar > 0 && nbyte < slen; --nchar)
{
if (str[nbyte] < 0x80 && str[nbyte + 1] < 0x80)
++nbyte;
else if (enc_utf8)
nbyte += utfc_ptr2len(str + nbyte);
else
nbyte += mb_ptr2len(str + nbyte);
}
if (nbyte >= slen)
return NULL;
return vim_strnsave(str + nbyte, mb_ptr2len(str + nbyte));
}
/*
* Get the byte index for character index "idx" in string "str" with length
* "str_len". Composing characters are included.
* If going over the end return "str_len".
* If "idx" is negative count from the end, -1 is the last character.
* When going over the start return -1.
*/
static long
char_idx2byte(char_u *str, size_t str_len, varnumber_T idx)
{
varnumber_T nchar = idx;
size_t nbyte = 0;
if (nchar >= 0)
{
while (nchar > 0 && nbyte < str_len)
{
nbyte += mb_ptr2len(str + nbyte);
--nchar;
}
}
else
{
nbyte = str_len;
while (nchar < 0 && nbyte > 0)
{
--nbyte;
nbyte -= mb_head_off(str, str + nbyte);
++nchar;
}
if (nchar < 0)
return -1;
}
return (long)nbyte;
}
/*
* Return the slice "str[first : last]" using character indexes. Composing
* characters are included.
* "exclusive" is TRUE for slice().
* Return NULL when the result is empty.
*/
char_u *
string_slice(char_u *str, varnumber_T first, varnumber_T last, int exclusive)
{
long start_byte, end_byte;
size_t slen;
if (str == NULL)
return NULL;
slen = STRLEN(str);
start_byte = char_idx2byte(str, slen, first);
if (start_byte < 0)
start_byte = 0; // first index very negative: use zero
if ((last == -1 && !exclusive) || last == VARNUM_MAX)
end_byte = (long)slen;
else
{
end_byte = char_idx2byte(str, slen, last);
if (!exclusive && end_byte >= 0 && end_byte < (long)slen)
// end index is inclusive
end_byte += mb_ptr2len(str + end_byte);
}
if (start_byte >= (long)slen || end_byte <= start_byte)
return NULL;
return vim_strnsave(str + start_byte, end_byte - start_byte);
}
/*
* Get a script variable for ISN_STORESCRIPT and ISN_LOADSCRIPT.
* When "dfunc_idx" is negative don't give an error.
* Returns NULL for an error.
*/
static svar_T *
get_script_svar(scriptref_T *sref, int dfunc_idx)
{
scriptitem_T *si = SCRIPT_ITEM(sref->sref_sid);
dfunc_T *dfunc = dfunc_idx < 0 ? NULL
: ((dfunc_T *)def_functions.ga_data) + dfunc_idx;
svar_T *sv;
if (sref->sref_seq != si->sn_script_seq)
{
// The script was reloaded after the function was compiled, the
// script_idx may not be valid.
if (dfunc != NULL)
semsg(_(e_script_variable_invalid_after_reload_in_function_str),
printable_func_name(dfunc->df_ufunc));
return NULL;
}
sv = ((svar_T *)si->sn_var_vals.ga_data) + sref->sref_idx;
if (sv->sv_name == NULL)
{
if (dfunc != NULL)
emsg(_(e_script_variable_was_deleted));
return NULL;
}
if (!equal_type(sv->sv_type, sref->sref_type, 0))
{
if (dfunc != NULL)
emsg(_(e_script_variable_type_changed));
return NULL;
}
if ((sv->sv_flags & SVFLAG_EXPORTED) == 0
&& sref->sref_sid != current_sctx.sc_sid)
{
if (dfunc != NULL)
semsg(_(e_item_not_exported_in_script_str), sv->sv_name);
return NULL;
}
return sv;
}
/*
* Function passed to do_cmdline() for splitting a script joined by NL
* characters.
*/
static char_u *
get_split_sourceline(
int c UNUSED,
void *cookie,
int indent UNUSED,
getline_opt_T options UNUSED)
{
source_cookie_T *sp = (source_cookie_T *)cookie;
char_u *p;
char_u *line;
p = vim_strchr(sp->nextline, '\n');
if (p == NULL)
{
line = vim_strsave(sp->nextline);
sp->nextline += STRLEN(sp->nextline);
}
else
{
line = vim_strnsave(sp->nextline, p - sp->nextline);
sp->nextline = p + 1;
}
return line;
}
/*
* Execute a function by "name".
* This can be a builtin function, user function or a funcref.
* "iptr" can be used to replace the instruction with a more efficient one.
*/
static int
call_eval_func(
char_u *name,
int argcount,
ectx_T *ectx,
isn_T *iptr)
{
int called_emsg_before = called_emsg;
int res;
res = call_by_name(name, argcount, ectx, iptr, NULL);
if (res == FAIL && called_emsg == called_emsg_before)
{
dictitem_T *v;
v = find_var(name, NULL, FALSE);
if (v == NULL || (v->di_tv.v_type != VAR_PARTIAL
&& v->di_tv.v_type != VAR_FUNC))
{
emsg_funcname(e_unknown_function_str, name);
return FAIL;
}
return call_partial(&v->di_tv, argcount, ectx);
}
return res;
}
/*
* When a function reference is used, fill a partial with the information
* needed, especially when it is used as a closure.
*/
int
fill_partial_and_closure(
partial_T *pt,
ufunc_T *ufunc,
loopvarinfo_T *lvi,
ectx_T *ectx)
{
pt->pt_func = ufunc;
pt->pt_refcount = 1;
if (ufunc->uf_flags & FC_CLOSURE)
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx;
// The closure may need to find arguments and local variables of the
// current function in the stack.
pt->pt_outer.out_stack = &ectx->ec_stack;
pt->pt_outer.out_frame_idx = ectx->ec_frame_idx;
if (ectx->ec_outer_ref != NULL)
{
// The current context already has a context, link to that one.
pt->pt_outer.out_up = ectx->ec_outer_ref->or_outer;
if (ectx->ec_outer_ref->or_partial != NULL)
{
pt->pt_outer.out_up_partial = ectx->ec_outer_ref->or_partial;
++pt->pt_outer.out_up_partial->pt_refcount;
}
}
if (lvi != NULL)
{
int depth;
// The closure may need to find variables defined inside a loop,
// for every nested loop. A new reference is made every time,
// ISN_ENDLOOP will check if they are actually used.
for (depth = 0; depth < lvi->lvi_depth; ++depth)
{
pt->pt_outer.out_loop[depth].stack = &ectx->ec_stack;
pt->pt_outer.out_loop[depth].var_idx = ectx->ec_frame_idx
+ STACK_FRAME_SIZE + lvi->lvi_loop[depth].var_idx;
pt->pt_outer.out_loop[depth].var_count =
lvi->lvi_loop[depth].var_count;
}
pt->pt_outer.out_loop_size = lvi->lvi_depth;
}
else
pt->pt_outer.out_loop_size = 0;
// If the function currently executing returns and the closure is still
// being referenced, we need to make a copy of the context (arguments
// and local variables) so that the closure can use it later.
// Store a reference to the partial so we can handle that.
if (GA_GROW_FAILS(&ectx->ec_funcrefs, 1))
{
vim_free(pt);
return FAIL;
}
// Extra variable keeps the count of closures created in the current
// function call.
++(((typval_T *)ectx->ec_stack.ga_data) + ectx->ec_frame_idx
+ STACK_FRAME_SIZE + dfunc->df_varcount)->vval.v_number;
((partial_T **)ectx->ec_funcrefs.ga_data)[ectx->ec_funcrefs.ga_len]
= pt;
++pt->pt_refcount;
++ectx->ec_funcrefs.ga_len;
}
++ufunc->uf_refcount;
return OK;
}
/*
* Execute iptr->isn_arg.string as an Ex command.
*/
static int
exec_command(isn_T *iptr, char_u *cmd_string)
{
source_cookie_T cookie;
SOURCING_LNUM = iptr->isn_lnum;
// Pass getsourceline to get an error for a missing ":end" command.
CLEAR_FIELD(cookie);
cookie.sourcing_lnum = iptr->isn_lnum - 1;
if (do_cmdline(cmd_string, getsourceline, &cookie,
DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED) == FAIL
|| did_emsg)
return FAIL;
return OK;
}
/*
* If script "sid" is not loaded yet then load it now.
* Caller must make sure "sid" is a valid script ID.
* "loaded" is set to TRUE if the script had to be loaded.
* Returns FAIL if loading fails, OK if already loaded or loaded now.
*/
int
may_load_script(int sid, int *loaded)
{
scriptitem_T *si = SCRIPT_ITEM(sid);
if (si->sn_state == SN_STATE_NOT_LOADED)
{
*loaded = TRUE;
if (do_source(si->sn_name, FALSE, DOSO_NONE, NULL) == FAIL)
{
semsg(_(e_cant_open_file_str), si->sn_name);
return FAIL;
}
}
return OK;
}
// used for v_instr of typval of VAR_INSTR
struct instr_S {
ectx_T *instr_ectx;
isn_T *instr_instr;
};
// used for substitute_instr
typedef struct subs_expr_S {
ectx_T *subs_ectx;
isn_T *subs_instr;
int subs_status;
} subs_expr_T;
// Set when calling do_debug().
static ectx_T *debug_context = NULL;
static int debug_var_count;
/*
* When debugging lookup "name" and return the typeval.
* When not found return NULL.
*/
typval_T *
lookup_debug_var(char_u *name)
{
int idx;
dfunc_T *dfunc;
ufunc_T *ufunc;
ectx_T *ectx = debug_context;
int varargs_off;
if (ectx == NULL)
return NULL;
dfunc = ((dfunc_T *)def_functions.ga_data) + ectx->ec_dfunc_idx;
// Go through the local variable names, from last to first.
for (idx = debug_var_count - 1; idx >= 0; --idx)
{
char_u *varname = ((char_u **)dfunc->df_var_names.ga_data)[idx];
// the variable name may be NULL when not available in this block
if (varname != NULL && STRCMP(varname, name) == 0)
return STACK_TV_VAR(idx);
}
// Go through argument names.
ufunc = dfunc->df_ufunc;
varargs_off = ufunc->uf_va_name == NULL ? 0 : 1;
for (idx = 0; idx < ufunc->uf_args.ga_len; ++idx)
if (STRCMP(((char_u **)(ufunc->uf_args.ga_data))[idx], name) == 0)
return STACK_TV(ectx->ec_frame_idx - ufunc->uf_args.ga_len
- varargs_off + idx);
if (ufunc->uf_va_name != NULL && STRCMP(ufunc->uf_va_name, name) == 0)
return STACK_TV(ectx->ec_frame_idx - 1);
return NULL;
}
/*
* Return TRUE if there might be a breakpoint in "ufunc", which is when a
* breakpoint was set in that function or when there is any expression.
*/
int
may_break_in_function(ufunc_T *ufunc)
{
return ufunc->uf_has_breakpoint || debug_has_expr_breakpoint();
}
static void
handle_debug(isn_T *iptr, ectx_T *ectx)
{
char_u *line;
ufunc_T *ufunc = (((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx)->df_ufunc;
isn_T *ni;
int end_lnum = iptr->isn_lnum;
garray_T ga;
int lnum;
if (ex_nesting_level > debug_break_level)
{
linenr_T breakpoint;
if (!may_break_in_function(ufunc))
return;
// check for the next breakpoint if needed
breakpoint = dbg_find_breakpoint(FALSE, ufunc->uf_name,
iptr->isn_arg.debug.dbg_break_lnum);
if (breakpoint <= 0 || breakpoint > iptr->isn_lnum)
return;
}
SOURCING_LNUM = iptr->isn_lnum;
debug_context = ectx;
debug_var_count = iptr->isn_arg.debug.dbg_var_names_len;
for (ni = iptr + 1; ni->isn_type != ISN_FINISH; ++ni)
if (ni->isn_type == ISN_DEBUG
|| ni->isn_type == ISN_RETURN
|| ni->isn_type == ISN_RETURN_OBJECT
|| ni->isn_type == ISN_RETURN_VOID)
{
end_lnum = ni->isn_lnum + (ni->isn_type == ISN_DEBUG ? 0 : 1);
break;
}
if (end_lnum > iptr->isn_lnum)
{
ga_init2(&ga, sizeof(char_u *), 10);
for (lnum = iptr->isn_lnum; lnum < end_lnum
&& lnum <= ufunc->uf_lines.ga_len; ++lnum)
{
char_u *p = ((char_u **)ufunc->uf_lines.ga_data)[lnum - 1];
if (p == NULL)
continue; // left over from continuation line
p = skipwhite(p);
if (*p == '#')
break;
if (GA_GROW_OK(&ga, 1))
((char_u **)(ga.ga_data))[ga.ga_len++] = p;
if (STRNCMP(p, "def ", 4) == 0)
break;
}
line = ga_concat_strings(&ga, " ");
vim_free(ga.ga_data);
}
else
line = ((char_u **)ufunc->uf_lines.ga_data)[iptr->isn_lnum - 1];
do_debug(line == NULL ? (char_u *)"[empty]" : line);
debug_context = NULL;
if (end_lnum > iptr->isn_lnum)
vim_free(line);
}
/*
* Do a runtime check of the RHS value against the LHS List member type.
* This is used by the STOREINDEX instruction to perform a type check
* at runtime if compile time type check cannot be performed (VAR_ANY).
* Returns FAIL if there is a type mismatch.
*/
static int
storeindex_check_list_member_type(
list_T *lhs_list,
typval_T *rhs_tv,
ectx_T *ectx)
{
if (lhs_list->lv_type == NULL || lhs_list->lv_type->tt_member == NULL)
return OK;
return check_typval_type(lhs_list->lv_type->tt_member, rhs_tv,
ectx->ec_where);
}
/*
* Store a value in a list, dict, blob or object variable.
* Returns OK, FAIL or NOTDONE (uncatchable error).
*/
static int
execute_storeindex(isn_T *iptr, ectx_T *ectx)
{
vartype_T dest_type = iptr->isn_arg.storeindex.si_vartype;
typval_T *tv;
typval_T *tv_idx = STACK_TV_BOT(-2);
long lidx = 0;
typval_T *tv_dest = STACK_TV_BOT(-1);
int status = OK;
int check_rhs_type = FALSE;
if (tv_idx->v_type == VAR_NUMBER)
lidx = (long)tv_idx->vval.v_number;
// Stack contains:
// -3 value to be stored
// -2 index
// -1 dict, list, blob, object or class
tv = STACK_TV_BOT(-3);
SOURCING_LNUM = iptr->isn_lnum;
// Make sure an object has been initialized
if (dest_type == VAR_OBJECT && tv_dest->vval.v_object == NULL)
{
emsg(_(e_using_null_object));
status = FAIL;
}
else if (dest_type == VAR_ANY)
{
check_rhs_type = TRUE;
dest_type = tv_dest->v_type;
if (dest_type == VAR_DICT)
status = do_2string(tv_idx, TRUE, FALSE);
else if (dest_type == VAR_OBJECT && tv_idx->v_type == VAR_STRING)
{
// Need to get the member index now that the class is known.
object_T *obj = tv_dest->vval.v_object;
if (obj == NULL)
{
emsg(_(e_using_null_object));
status = FAIL;
}
else
{
class_T *cl = obj->obj_class;
char_u *member = tv_idx->vval.v_string;
int m_idx;
ocmember_T *m = object_member_lookup(cl, member, 0, &m_idx);
if (m != NULL)
{
// Get the current function
ufunc_T *ufunc = (((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx)->df_ufunc;
where_T where = WHERE_INIT;
// Check whether the member variable is writeable
if ((m->ocm_access != VIM_ACCESS_ALL) &&
(ufunc->uf_class == NULL ||
!class_instance_of(ufunc->uf_class, cl)))
{
char *msg = (m->ocm_access == VIM_ACCESS_PRIVATE)
? e_cannot_access_protected_variable_str
: e_variable_is_not_writable_str;
emsg_var_cl_define(msg, m->ocm_name, 0, cl);
status = FAIL;
}
// Fail if the variable is a const or final or the type
// is not compatible
else if (oc_var_check_ro(cl, m) ||
check_typval_type(m->ocm_type, tv, where)
== FAIL)
status = FAIL;
else
lidx = m_idx;
}
else
{
member_not_found_msg(cl, VAR_OBJECT, member, 0);
status = FAIL;
}
}
}
else if ((dest_type == VAR_LIST || dest_type == VAR_OBJECT)
&& tv_idx->v_type != VAR_NUMBER)
{
emsg(_(e_number_expected));
status = FAIL;
}
}
if (status == OK)
{
if (dest_type == VAR_LIST)
{
list_T *list = tv_dest->vval.v_list;
if (list == NULL)
{
emsg(_(e_list_not_set));
return FAIL;
}
if (lidx < 0 && list->lv_len + lidx >= 0)
// negative index is relative to the end
lidx = list->lv_len + lidx;
if (lidx < 0 || lidx > list->lv_len)
{
semsg(_(e_list_index_out_of_range_nr), lidx);
return FAIL;
}
// Do a runtime type check for VAR_ANY
if (check_rhs_type &&
storeindex_check_list_member_type(list, tv, ectx) == FAIL)
return FAIL;
if (lidx < list->lv_len)
{
listitem_T *li = list_find(list, lidx);
if (error_if_locked(li->li_tv.v_lock,
e_cannot_change_locked_list_item))
return FAIL;
// overwrite existing list item
clear_tv(&li->li_tv);
li->li_tv = *tv;
}
else
{
if (error_if_locked(list->lv_lock, e_cannot_change_locked_list))
return FAIL;
// append to list, only fails when out of memory
if (list_append_tv(list, tv) == FAIL)
return NOTDONE;
clear_tv(tv);
}
}
else if (dest_type == VAR_DICT)
{
char_u *key = tv_idx->vval.v_string;
dict_T *dict = tv_dest->vval.v_dict;
dictitem_T *di;
SOURCING_LNUM = iptr->isn_lnum;
if (dict == NULL)
{
emsg(_(e_dictionary_not_set));
return FAIL;
}
if (key == NULL)
key = (char_u *)"";
di = dict_find(dict, key, -1);
if (di != NULL)
{
if (error_if_locked(di->di_tv.v_lock,
e_cannot_change_dict_item))
return FAIL;
// overwrite existing value
clear_tv(&di->di_tv);
di->di_tv = *tv;
}
else
{
if (error_if_locked(dict->dv_lock, e_cannot_change_dict))
return FAIL;
// add to dict, only fails when out of memory
if (dict_add_tv(dict, (char *)key, tv) == FAIL)
return NOTDONE;
clear_tv(tv);
}
}
else if (dest_type == VAR_BLOB)
{
blob_T *blob = tv_dest->vval.v_blob;
varnumber_T nr;
int error = FALSE;
int len;
if (blob == NULL)
{
emsg(_(e_blob_not_set));
return FAIL;
}
len = blob_len(blob);
if (lidx < 0 && len + lidx >= 0)
// negative index is relative to the end
lidx = len + lidx;
// Can add one byte at the end.
if (lidx < 0 || lidx > len)
{
semsg(_(e_blob_index_out_of_range_nr), lidx);
return FAIL;
}
if (value_check_lock(blob->bv_lock, (char_u *)"blob", FALSE))
return FAIL;
nr = tv_get_number_chk(tv, &error);
if (error)
return FAIL;
blob_set_append(blob, lidx, nr);
}
else if (dest_type == VAR_CLASS || dest_type == VAR_OBJECT)
{
typval_T *otv;
if (dest_type == VAR_OBJECT)
{
object_T *obj = tv_dest->vval.v_object;
otv = (typval_T *)(obj + 1);
class_T *itf = iptr->isn_arg.storeindex.si_class;
if (itf != NULL)
// convert interface member index to class member index
lidx = object_index_from_itf_index(itf, FALSE, lidx,
obj->obj_class);
}
else
{
// VAR_CLASS
class_T *class = tv_dest->vval.v_class;
otv = class->class_members_tv;
}
clear_tv(&otv[lidx]);
otv[lidx] = *tv;
}
else if (dest_type == VAR_TUPLE)
{
emsg(_(e_tuple_is_immutable));
status = FAIL;
}
else
{
status = FAIL;
semsg(_(e_cannot_index_str), vartype_name(dest_type));
}
}
clear_tv(tv_idx);
clear_tv(tv_dest);
ectx->ec_stack.ga_len -= 3;
if (status == FAIL)
{
clear_tv(tv);
return FAIL;
}
return OK;
}
/*
* Store a value in a list or blob range.
*/
static int
execute_storerange(isn_T *iptr, ectx_T *ectx)
{
typval_T *tv;
typval_T *tv_idx1 = STACK_TV_BOT(-3);
typval_T *tv_idx2 = STACK_TV_BOT(-2);
typval_T *tv_dest = STACK_TV_BOT(-1);
int status = OK;
// Stack contains:
// -4 value to be stored
// -3 first index or "none"
// -2 second index or "none"
// -1 destination list or blob
tv = STACK_TV_BOT(-4);
SOURCING_LNUM = iptr->isn_lnum;
if (tv_dest->v_type == VAR_LIST)
{
long n1;
long n2;
listitem_T *li1;
n1 = (long)tv_get_number_chk(tv_idx1, NULL);
if (tv_idx2->v_type == VAR_SPECIAL
&& tv_idx2->vval.v_number == VVAL_NONE)
n2 = list_len(tv_dest->vval.v_list) - 1;
else
n2 = (long)tv_get_number_chk(tv_idx2, NULL);
li1 = check_range_index_one(tv_dest->vval.v_list, &n1, TRUE, FALSE);
if (li1 == NULL)
status = FAIL;
else
{
status = check_range_index_two(tv_dest->vval.v_list,
&n1, li1, &n2, FALSE);
if (status != FAIL)
status = list_assign_range(
tv_dest->vval.v_list,
tv->vval.v_list,
n1,
n2,
tv_idx2->v_type == VAR_SPECIAL,
(char_u *)"=",
(char_u *)"[unknown]");
}
}
else if (tv_dest->v_type == VAR_BLOB)
{
varnumber_T n1;
varnumber_T n2;
long bloblen;
n1 = tv_get_number_chk(tv_idx1, NULL);
if (tv_idx2->v_type == VAR_SPECIAL
&& tv_idx2->vval.v_number == VVAL_NONE)
n2 = blob_len(tv_dest->vval.v_blob) - 1;
else
n2 = tv_get_number_chk(tv_idx2, NULL);
bloblen = blob_len(tv_dest->vval.v_blob);
if (check_blob_index(bloblen, n1, FALSE) == FAIL
|| check_blob_range(bloblen, n1, n2, FALSE) == FAIL)
status = FAIL;
else
status = blob_set_range(tv_dest->vval.v_blob, n1, n2, tv);
}
else
{
status = FAIL;
emsg(_(e_list_or_blob_required));
}
clear_tv(tv_idx1);
clear_tv(tv_idx2);
clear_tv(tv_dest);
ectx->ec_stack.ga_len -= 4;
clear_tv(tv);
return status;
}
/*
* Unlet item in list or dict variable.
*/
static int
execute_unletindex(isn_T *iptr, ectx_T *ectx)
{
typval_T *tv_idx = STACK_TV_BOT(-2);
typval_T *tv_dest = STACK_TV_BOT(-1);
int status = OK;
// Stack contains:
// -2 index
// -1 dict or list
SOURCING_LNUM = iptr->isn_lnum;
if (tv_dest->v_type == VAR_DICT)
{
// unlet a dict item, index must be a string
if (tv_idx->v_type != VAR_STRING && tv_idx->v_type != VAR_NUMBER)
{
semsg(_(e_expected_str_but_got_str),
vartype_name(VAR_STRING),
vartype_name(tv_idx->v_type));
status = FAIL;
}
else
{
dict_T *d = tv_dest->vval.v_dict;
char_u *key;
dictitem_T *di = NULL;
if (d != NULL && value_check_lock(
d->dv_lock, NULL, FALSE))
status = FAIL;
else
{
if (tv_idx->v_type == VAR_STRING)
{
key = tv_idx->vval.v_string;
if (key == NULL)
key = (char_u *)"";
}
else
{
key = tv_get_string(tv_idx);
}
if (d != NULL)
di = dict_find(d, key, (int)STRLEN(key));
if (di == NULL)
{
// NULL dict is equivalent to empty dict
semsg(_(e_key_not_present_in_dictionary_str), key);
status = FAIL;
}
else if (var_check_fixed(di->di_flags,
NULL, FALSE)
|| var_check_ro(di->di_flags,
NULL, FALSE))
status = FAIL;
else
dictitem_remove(d, di, "unlet");
}
}
}
else if (tv_dest->v_type == VAR_LIST)
{
// unlet a List item, index must be a number
if (check_for_number(tv_idx) == FAIL)
{
status = FAIL;
}
else
{
list_T *l = tv_dest->vval.v_list;
long n = (long)tv_idx->vval.v_number;
if (l != NULL && value_check_lock(
l->lv_lock, NULL, FALSE))
status = FAIL;
else
{
listitem_T *li = list_find(l, n);
if (li == NULL)
{
semsg(_(e_list_index_out_of_range_nr), n);
status = FAIL;
}
else
listitem_remove(l, li);
}
}
}
else
{
status = FAIL;
semsg(_(e_cannot_index_str),
vartype_name(tv_dest->v_type));
}
clear_tv(tv_idx);
clear_tv(tv_dest);
ectx->ec_stack.ga_len -= 2;
return status;
}
/*
* Unlet a range of items in a list variable.
*/
static int
execute_unletrange(isn_T *iptr, ectx_T *ectx)
{
// Stack contains:
// -3 index1
// -2 index2
// -1 dict or list
typval_T *tv_idx1 = STACK_TV_BOT(-3);
typval_T *tv_idx2 = STACK_TV_BOT(-2);
typval_T *tv_dest = STACK_TV_BOT(-1);
int status = OK;
if (tv_dest->v_type == VAR_LIST)
{
// indexes must be a number
SOURCING_LNUM = iptr->isn_lnum;
if (check_for_number(tv_idx1) == FAIL
|| (tv_idx2->v_type != VAR_SPECIAL
&& check_for_number(tv_idx2) == FAIL))
{
status = FAIL;
}
else
{
list_T *l = tv_dest->vval.v_list;
long n1 = (long)tv_idx1->vval.v_number;
long n2 = tv_idx2->v_type == VAR_SPECIAL
? 0 : (long)tv_idx2->vval.v_number;
listitem_T *li;
li = list_find_index(l, &n1);
if (li == NULL)
{
semsg(_(e_list_index_out_of_range_nr),
(long)tv_idx1->vval.v_number);
status = FAIL;
}
else
{
if (n1 < 0)
n1 = list_idx_of_item(l, li);
if (n2 < 0)
{
listitem_T *li2 = list_find(l, n2);
if (li2 == NULL)
{
semsg(_(e_list_index_out_of_range_nr), n2);
status = FAIL;
}
else
n2 = list_idx_of_item(l, li2);
}
if (status != FAIL
&& tv_idx2->v_type != VAR_SPECIAL
&& n2 < n1)
{
semsg(_(e_list_index_out_of_range_nr), n2);
status = FAIL;
}
if (status != FAIL)
list_unlet_range(l, li, n1,
tv_idx2->v_type != VAR_SPECIAL, n2);
}
}
}
else
{
status = FAIL;
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_cannot_index_str),
vartype_name(tv_dest->v_type));
}
clear_tv(tv_idx1);
clear_tv(tv_idx2);
clear_tv(tv_dest);
ectx->ec_stack.ga_len -= 3;
return status;
}
/*
* Top of a for loop.
*/
static int
execute_for(isn_T *iptr, ectx_T *ectx)
{
typval_T *tv;
int jump = FALSE;
typval_T *ltv = STACK_TV_BOT(-1);
typval_T *idxtv =
STACK_TV_VAR(iptr->isn_arg.forloop.for_loop_idx);
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
return FAIL;
if (ltv->v_type == VAR_LIST)
{
list_T *list = ltv->vval.v_list;
// push the next item from the list
++idxtv->vval.v_number;
if (list == NULL
|| idxtv->vval.v_number >= list->lv_len)
{
jump = TRUE;
}
else if (list->lv_first == &range_list_item)
{
// non-materialized range() list
tv = STACK_TV_BOT(0);
tv->v_type = VAR_NUMBER;
tv->v_lock = 0;
tv->vval.v_number = list_find_nr(
list, idxtv->vval.v_number, NULL);
++ectx->ec_stack.ga_len;
}
else
{
listitem_T *li = list_find(list,
idxtv->vval.v_number);
copy_tv(&li->li_tv, STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
}
}
else if (ltv->v_type == VAR_TUPLE)
{
tuple_T *tuple = ltv->vval.v_tuple;
// push the next item from the tuple
++idxtv->vval.v_number;
if (tuple == NULL || idxtv->vval.v_number >= TUPLE_LEN(tuple))
jump = TRUE;
else
{
copy_tv(TUPLE_ITEM(tuple, idxtv->vval.v_number), STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
}
}
else if (ltv->v_type == VAR_STRING)
{
char_u *str = ltv->vval.v_string;
// The index is for the last byte of the previous
// character.
++idxtv->vval.v_number;
if (str == NULL || str[idxtv->vval.v_number] == NUL)
{
jump = TRUE;
}
else
{
int clen = mb_ptr2len(str + idxtv->vval.v_number);
// Push the next character from the string.
tv = STACK_TV_BOT(0);
tv->v_type = VAR_STRING;
tv->vval.v_string = vim_strnsave(
str + idxtv->vval.v_number, clen);
++ectx->ec_stack.ga_len;
idxtv->vval.v_number += clen - 1;
}
}
else if (ltv->v_type == VAR_BLOB)
{
blob_T *blob = ltv->vval.v_blob;
// When we get here the first time make a copy of the
// blob, so that the iteration still works when it is
// changed.
if (idxtv->vval.v_number == -1 && blob != NULL)
{
blob_copy(blob, ltv);
blob_unref(blob);
blob = ltv->vval.v_blob;
}
// The index is for the previous byte.
++idxtv->vval.v_number;
if (blob == NULL || idxtv->vval.v_number >= blob_len(blob))
{
jump = TRUE;
}
else
{
// Push the next byte from the blob.
tv = STACK_TV_BOT(0);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = blob_get(blob,
idxtv->vval.v_number);
++ectx->ec_stack.ga_len;
}
}
else
{
semsg(_(e_for_loop_on_str_not_supported),
vartype_name(ltv->v_type));
return FAIL;
}
if (jump)
{
// past the end of the list/string/blob, jump to "endfor"
ectx->ec_iidx = iptr->isn_arg.forloop.for_end;
may_restore_cmdmod(&ectx->ec_funclocal);
}
else
{
// Store the current number of funcrefs, this may be used in
// ISN_LOOPEND. The variable index is always one more than the loop
// variable index.
tv = STACK_TV_VAR(iptr->isn_arg.forloop.for_loop_idx + 1);
tv->vval.v_number = ectx->ec_funcrefs.ga_len;
}
return OK;
}
/*
* Code for handling variables declared inside a loop and used in a closure.
* This is very similar to what is done with funcstack_T. The difference is
* that the funcstack_T has the scope of a function, while a loopvars_T has the
* scope of the block inside a loop and each loop may have its own.
*/
// Double linked list of loopvars_T in use.
static loopvars_T *first_loopvars = NULL;
static void
add_loopvars_to_list(loopvars_T *loopvars)
{
// Link in list of loopvarss.
if (first_loopvars != NULL)
first_loopvars->lvs_prev = loopvars;
loopvars->lvs_next = first_loopvars;
loopvars->lvs_prev = NULL;
first_loopvars = loopvars;
}
static void
remove_loopvars_from_list(loopvars_T *loopvars)
{
if (loopvars->lvs_prev == NULL)
first_loopvars = loopvars->lvs_next;
else
loopvars->lvs_prev->lvs_next = loopvars->lvs_next;
if (loopvars->lvs_next != NULL)
loopvars->lvs_next->lvs_prev = loopvars->lvs_prev;
}
/*
* End of a for or while loop: Handle any variables used by a closure.
*/
static int
execute_endloop(isn_T *iptr, ectx_T *ectx)
{
endloop_T *endloop = &iptr->isn_arg.endloop;
typval_T *tv_refcount = STACK_TV_VAR(endloop->end_funcref_idx);
int prev_closure_count = tv_refcount->vval.v_number;
int depth = endloop->end_depth;
garray_T *gap = &ectx->ec_funcrefs;
int closure_in_use = FALSE;
loopvars_T *loopvars;
typval_T *stack;
int idx;
// Check if any created closure is still being referenced and loopvars have
// not been saved yet for the current depth.
for (idx = prev_closure_count; idx < gap->ga_len; ++idx)
{
partial_T *pt = ((partial_T **)gap->ga_data)[idx];
if (pt->pt_refcount > 1 && pt->pt_loopvars[depth] == NULL)
{
int refcount = pt->pt_refcount;
int i;
// A Reference in a variable inside the loop doesn't count, it gets
// unreferenced at the end of the loop.
for (i = 0; i < endloop->end_var_count; ++i)
{
typval_T *stv = STACK_TV_VAR(endloop->end_var_idx + i);
if (stv->v_type == VAR_PARTIAL && pt == stv->vval.v_partial)
--refcount;
}
if (refcount > 1)
{
closure_in_use = TRUE;
break;
}
}
}
// If no function reference were created since the start of the loop block
// or it is no longer referenced there is nothing to do.
if (!closure_in_use)
return OK;
// A closure is using variables declared inside the loop.
// Move them to the called function.
loopvars = ALLOC_CLEAR_ONE(loopvars_T);
if (loopvars == NULL)
return FAIL;
loopvars->lvs_ga.ga_len = endloop->end_var_count;
stack = ALLOC_CLEAR_MULT(typval_T, loopvars->lvs_ga.ga_len);
loopvars->lvs_ga.ga_data = stack;
if (stack == NULL)
{
vim_free(loopvars);
return FAIL;
}
add_loopvars_to_list(loopvars);
// Move the variable values.
for (idx = 0; idx < endloop->end_var_count; ++idx)
{
typval_T *tv = STACK_TV_VAR(endloop->end_var_idx + idx);
*(stack + idx) = *tv;
tv->v_type = VAR_UNKNOWN;
}
for (idx = prev_closure_count; idx < gap->ga_len; ++idx)
{
partial_T *pt = ((partial_T **)gap->ga_data)[idx];
if (pt->pt_refcount > 1 && pt->pt_loopvars[depth] == NULL)
{
++loopvars->lvs_refcount;
pt->pt_loopvars[depth] = loopvars;
pt->pt_outer.out_loop[depth].stack = &loopvars->lvs_ga;
pt->pt_outer.out_loop[depth].var_idx -=
ectx->ec_frame_idx + STACK_FRAME_SIZE + endloop->end_var_idx;
}
}
return OK;
}
/*
* Called when a partial is freed or its reference count goes down to one. The
* loopvars may be the only reference to the partials in the local variables.
* Go over all of them, the funcref and can be freed if all partials
* referencing the loopvars have a reference count of one.
* Return TRUE if it was freed.
*/
int
loopvars_check_refcount(loopvars_T *loopvars)
{
int i;
garray_T *gap = &loopvars->lvs_ga;
int done = 0;
typval_T *stack = gap->ga_data;
if (loopvars->lvs_refcount > loopvars->lvs_min_refcount)
return FALSE;
for (i = 0; i < gap->ga_len; ++i)
{
typval_T *tv = ((typval_T *)gap->ga_data) + i;
if (tv->v_type == VAR_PARTIAL && tv->vval.v_partial != NULL
&& tv->vval.v_partial->pt_refcount == 1)
{
int depth;
for (depth = 0; depth < MAX_LOOP_DEPTH; ++depth)
if (tv->vval.v_partial->pt_loopvars[depth] == loopvars)
++done;
}
}
if (done != loopvars->lvs_min_refcount)
return FALSE;
// All partials referencing the loopvars have a reference count of
// one, thus the loopvars is no longer of use.
stack = gap->ga_data;
for (i = 0; i < gap->ga_len; ++i)
clear_tv(stack + i);
vim_free(stack);
remove_loopvars_from_list(loopvars);
vim_free(loopvars);
return TRUE;
}
/*
* For garbage collecting: set references in all variables referenced by
* all loopvars.
*/
int
set_ref_in_loopvars(int copyID)
{
loopvars_T *loopvars;
for (loopvars = first_loopvars; loopvars != NULL;
loopvars = loopvars->lvs_next)
{
typval_T *stack = loopvars->lvs_ga.ga_data;
int i;
for (i = 0; i < loopvars->lvs_ga.ga_len; ++i)
if (set_ref_in_item(stack + i, copyID, NULL, NULL, NULL))
return TRUE; // abort
}
return FALSE;
}
/*
* Load instruction for w:/b:/g:/t: variable.
* "isn_type" is used instead of "iptr->isn_type".
*/
static int
load_namespace_var(ectx_T *ectx, isntype_T isn_type, isn_T *iptr)
{
dictitem_T *di = NULL;
hashtab_T *ht = NULL;
char namespace;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
return NOTDONE;
switch (isn_type)
{
case ISN_LOADG:
ht = get_globvar_ht();
namespace = 'g';
break;
case ISN_LOADB:
ht = &curbuf->b_vars->dv_hashtab;
namespace = 'b';
break;
case ISN_LOADW:
ht = &curwin->w_vars->dv_hashtab;
namespace = 'w';
break;
case ISN_LOADT:
ht = &curtab->tp_vars->dv_hashtab;
namespace = 't';
break;
default: // Cannot reach here
return NOTDONE;
}
di = find_var_in_ht(ht, 0, iptr->isn_arg.string, TRUE);
if (di == NULL)
{
if (isn_type == ISN_LOADG)
{
ufunc_T *ufunc = find_func(iptr->isn_arg.string, TRUE);
// g:Something could be a function
if (ufunc != NULL)
{
typval_T *tv = STACK_TV_BOT(0);
++ectx->ec_stack.ga_len;
tv->v_type = VAR_FUNC;
tv->vval.v_string = alloc(STRLEN(iptr->isn_arg.string) + 3);
if (tv->vval.v_string == NULL)
return FAIL;
STRCPY(tv->vval.v_string, "g:");
STRCPY(tv->vval.v_string + 2, iptr->isn_arg.string);
return OK;
}
}
SOURCING_LNUM = iptr->isn_lnum;
if (vim_strchr(iptr->isn_arg.string, AUTOLOAD_CHAR) != NULL)
// no check if the item exists in the script but
// isn't exported, it is too complicated
semsg(_(e_item_not_found_in_script_str), iptr->isn_arg.string);
else
semsg(_(e_undefined_variable_char_str),
namespace, iptr->isn_arg.string);
return FAIL;
}
else
{
copy_tv(&di->di_tv, STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
}
return OK;
}
static void
object_required_error(typval_T *tv)
{
garray_T type_list;
ga_init2(&type_list, sizeof(type_T *), 10);
type_T *type = typval2type(tv, get_copyID(), &type_list, TVTT_DO_MEMBER);
char *tofree = NULL;
char *typename = type_name(type, &tofree);
semsg(_(e_object_required_found_str), typename);
vim_free(tofree);
clear_type_list(&type_list);
}
/*
* Accessing the variable or method of an object or a class stored in a
* variable of type "any".
* Returns OK if the member variable is present.
* Returns FAIL if the variable is not found.
*/
static int
var_any_get_oc_member(class_T *current_class, isn_T *iptr, typval_T *tv)
{
int is_object = tv->v_type == VAR_OBJECT;
class_T *tv_cl;
object_T *obj = NULL;
typval_T mtv;
if (is_object)
{
obj = tv->vval.v_object;
if (obj == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_using_null_object));
return FAIL;
}
tv_cl = obj->obj_class;
}
else
{
tv_cl = tv->vval.v_class;
if (tv_cl == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_using_null_class));
return FAIL;
}
}
// get_member_tv() needs the class/object information in the typval
// argument. So set the object information.
copy_tv(tv, &mtv);
// 'name' can either be an instance or class variable or method
int namelen = (int)STRLEN(iptr->isn_arg.string);
int save_did_emsg = did_emsg;
if (get_member_tv(tv_cl, is_object, iptr->isn_arg.string, namelen,
current_class, &mtv) == OK)
{
// instance or class variable
copy_tv(&mtv, tv);
clear_tv(&mtv);
return OK;
}
if (did_emsg != save_did_emsg)
return FAIL;
// could be a class or instance method
ufunc_T *oc_method;
int oc_method_idx;
oc_method = method_lookup(tv_cl, tv->v_type, iptr->isn_arg.string,
namelen, &oc_method_idx);
if (oc_method == NULL)
{
char *msg;
SOURCING_LNUM = iptr->isn_lnum;
if (is_object)
msg = e_variable_not_found_on_object_str_str;
else
msg = e_class_variable_str_not_found_in_class_str;
semsg(_(msg), iptr->isn_arg.string, tv_cl->class_name);
return FAIL;
}
// Protected methods are not accessible outside the class
if (*oc_method->uf_name == '_'
&& !class_instance_of(current_class, tv_cl))
{
semsg(_(e_cannot_access_protected_method_str), oc_method->uf_name);
return FAIL;
}
// Create a partial for the instance or class method
if (obj_method_to_partial_tv(is_object ? obj : NULL, oc_method, tv)
== FAIL)
return FAIL;
return OK;
}
/*
* do ISN_PUT or ISN_IPUT instruction depending on fixindent parameter
*/
static void
isn_put_do(ectx_T *ectx, isn_T *iptr, typval_T *tv, int fixindent)
{
int regname = iptr->isn_arg.put.put_regname;
linenr_T lnum = iptr->isn_arg.put.put_lnum;
char_u *expr = NULL;
int dir = FORWARD;
if (lnum < -2)
{
// line number was put on the stack by ISN_RANGE
tv = STACK_TV_BOT(-1);
curwin->w_cursor.lnum = tv->vval.v_number;
if (lnum == LNUM_VARIABLE_RANGE_ABOVE)
dir = BACKWARD;
--ectx->ec_stack.ga_len;
}
else if (lnum == -2)
// :put! above cursor
dir = BACKWARD;
else if (lnum >= 0)
{
curwin->w_cursor.lnum = lnum;
if (lnum == 0)
// check_cursor() below will move to line 1
dir = BACKWARD;
}
if (regname == '=')
{
tv = STACK_TV_BOT(-1);
if (tv->v_type == VAR_STRING)
expr = tv->vval.v_string;
else
{
expr = typval2string(tv, TRUE); // allocates value
clear_tv(tv);
}
--ectx->ec_stack.ga_len;
}
check_cursor();
if (fixindent)
do_put(regname, expr, dir, 1L, PUT_LINE|PUT_CURSLINE|PUT_FIXINDENT);
else
do_put(regname, expr, dir, 1L, PUT_LINE|PUT_CURSLINE);
vim_free(expr);
}
/*
* Execute the ISN_UNPACK instruction for a List
*/
static int
exec_unpack_list(ectx_T *ectx, isn_T *iptr, typval_T *tv)
{
int count = iptr->isn_arg.unpack.unp_count;
int semicolon = iptr->isn_arg.unpack.unp_semicolon;
list_T *l;
listitem_T *li;
int i;
l = tv->vval.v_list;
if (l == NULL
|| l->lv_len < (semicolon ? count - 1 : count))
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_list_value_does_not_have_enough_items));
return EXEC_FAIL;
}
else if (!semicolon && l->lv_len > count)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_list_value_has_more_items_than_targets));
return EXEC_FAIL;
}
CHECK_LIST_MATERIALIZE(l);
if (GA_GROW_FAILS(&ectx->ec_stack, count - 1))
return EXEC_DONE;
ectx->ec_stack.ga_len += count - 1;
// Variable after semicolon gets a list with the remaining
// items.
if (semicolon)
{
list_T *rem_list =
list_alloc_with_items(l->lv_len - count + 1);
if (rem_list == NULL)
return EXEC_DONE;
tv = STACK_TV_BOT(-count);
tv->vval.v_list = rem_list;
++rem_list->lv_refcount;
tv->v_lock = 0;
li = l->lv_first;
for (i = 0; i < count - 1; ++i)
li = li->li_next;
for (i = 0; li != NULL; ++i)
{
typval_T tvcopy;
copy_tv(&li->li_tv, &tvcopy);
list_set_item(rem_list, i, &tvcopy);
li = li->li_next;
}
--count;
}
// Produce the values in reverse order, first item last.
li = l->lv_first;
for (i = 0; i < count; ++i)
{
tv = STACK_TV_BOT(-i - 1);
copy_tv(&li->li_tv, tv);
li = li->li_next;
}
list_unref(l);
return EXEC_OK;
}
/*
* Execute the ISN_UNPACK instruction for a Tuple
*/
static int
exec_unpack_tuple(ectx_T *ectx, isn_T *iptr, typval_T *tv)
{
int count = iptr->isn_arg.unpack.unp_count;
int semicolon = iptr->isn_arg.unpack.unp_semicolon;
tuple_T *tuple;
int i;
tuple = tv->vval.v_tuple;
if (tuple == NULL
|| TUPLE_LEN(tuple) < (semicolon ? count - 1 : count))
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_more_targets_than_tuple_items));
return EXEC_FAIL;
}
else if (!semicolon && TUPLE_LEN(tuple) > count)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_less_targets_than_tuple_items));
return EXEC_FAIL;
}
if (GA_GROW_FAILS(&ectx->ec_stack, count - 1))
return EXEC_DONE;
ectx->ec_stack.ga_len += count - 1;
// Variable after semicolon gets a list with the remaining
// items.
if (semicolon)
{
list_T *rem_list =
list_alloc_with_items(TUPLE_LEN(tuple) - count + 1);
if (rem_list == NULL)
return EXEC_DONE;
tv = STACK_TV_BOT(-count);
tv->v_type = VAR_LIST;
tv->vval.v_list = rem_list;
++rem_list->lv_refcount;
tv->v_lock = 0;
for (i = count - 1; i < TUPLE_LEN(tuple); ++i)
{
typval_T tvcopy;
copy_tv(TUPLE_ITEM(tuple, i), &tvcopy);
list_set_item(rem_list, i - (count - 1), &tvcopy);
}
--count;
}
// Produce the values in reverse order, first item last.
for (i = 0; i < count; ++i)
{
tv = STACK_TV_BOT(-i - 1);
copy_tv(TUPLE_ITEM(tuple, i), tv);
}
tuple_unref(tuple);
return EXEC_OK;
}
/*
* Execute instructions in execution context "ectx".
* Return OK or FAIL;
*/
static int
exec_instructions(ectx_T *ectx)
{
int ret = FAIL;
int save_trylevel_at_start = ectx->ec_trylevel_at_start;
int dict_stack_len_at_start = dict_stack.ga_len;
// Start execution at the first instruction.
ectx->ec_iidx = 0;
// Only catch exceptions in this instruction list.
ectx->ec_trylevel_at_start = trylevel;
for (;;)
{
static int breakcheck_count = 0; // using "static" makes it faster
isn_T *iptr;
typval_T *tv;
if (unlikely(++breakcheck_count >= 100))
{
line_breakcheck();
breakcheck_count = 0;
}
if (unlikely(got_int))
{
// Turn CTRL-C into an exception.
got_int = FALSE;
if (throw_exception("Vim:Interrupt", ET_INTERRUPT, NULL) == FAIL)
goto theend;
did_throw = TRUE;
}
if (unlikely(did_emsg && msg_list != NULL && *msg_list != NULL))
{
// Turn an error message into an exception.
did_emsg = FALSE;
if (throw_exception(*msg_list, ET_ERROR, NULL) == FAIL)
goto theend;
did_throw = TRUE;
*msg_list = NULL;
// This exception was not caught (yet).
garray_T *trystack = &ectx->ec_trystack;
if (trystack->ga_len > 0)
{
trycmd_T *trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len - 1;
if (trycmd->tcd_frame_idx == ectx->ec_frame_idx)
{
if (trycmd->tcd_caught)
{
// Inside a "catch" we need to first discard the caught
// exception.
finish_exception(caught_stack);
trycmd->tcd_caught = FALSE;
}
}
}
}
if (unlikely(did_throw))
{
garray_T *trystack = &ectx->ec_trystack;
trycmd_T *trycmd = NULL;
int index = trystack->ga_len;
// An exception jumps to the first catch, finally, or returns from
// the current function.
while (index > 0)
{
trycmd = ((trycmd_T *)trystack->ga_data) + index - 1;
// 1. after :try and before :catch - jump to first :catch
// 2. in :catch block - jump to :finally
// 3. in :catch block and no finally - jump to :endtry
if (!trycmd->tcd_in_catch || trycmd->tcd_finally_idx != 0
|| trycmd->tcd_frame_idx == ectx->ec_frame_idx)
break;
// In the catch and finally block of this try we have to go up
// one level.
--index;
trycmd = NULL;
}
if (trycmd != NULL && trycmd->tcd_frame_idx == ectx->ec_frame_idx)
{
if (trycmd->tcd_in_catch)
{
if (trycmd->tcd_finally_idx > 0)
{
// exception inside ":catch", jump to ":finally" once
ectx->ec_iidx = trycmd->tcd_finally_idx;
trycmd->tcd_finally_idx = 0;
}
else
{
// exception inside ":catch" or ":finally", jump to
// ":endtry"
ectx->ec_iidx = trycmd->tcd_endtry_idx;
}
}
else
{
// jump to first ":catch"
ectx->ec_iidx = trycmd->tcd_catch_idx;
trycmd->tcd_in_catch = TRUE;
}
did_throw = FALSE; // don't come back here until :endtry
trycmd->tcd_did_throw = TRUE;
}
else
{
// Not inside try or need to return from current function.
// Push a dummy return value.
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = 0;
++ectx->ec_stack.ga_len;
if (ectx->ec_frame_idx == ectx->ec_initial_frame_idx)
{
// At the toplevel we are done.
need_rethrow = TRUE;
if (handle_closure_in_use(ectx, FALSE) == FAIL)
goto theend;
goto done;
}
if (func_return(ectx) == FAIL)
goto theend;
}
continue;
}
/*
* Big switch on the instruction. Most compilers will be turning this
* into an efficient lookup table, since the "case" values are an enum
* with sequential numbers. It may look ugly, but it should be the
* most efficient way.
*/
iptr = &ectx->ec_instr[ectx->ec_iidx++];
switch (iptr->isn_type)
{
// Constructor, first instruction in a new() method.
case ISN_CONSTRUCT:
// "this" is always the local variable at index zero
tv = STACK_TV_VAR(0);
tv->v_type = VAR_OBJECT;
tv->vval.v_object = alloc_clear(
iptr->isn_arg.construct.construct_size);
tv->vval.v_object->obj_class =
iptr->isn_arg.construct.construct_class;
++tv->vval.v_object->obj_class->class_refcount;
tv->vval.v_object->obj_refcount = 1;
object_created(tv->vval.v_object);
// When creating an enum value object, initialize the name and
// ordinal object variables.
class_T *en = tv->vval.v_object->obj_class;
if (IS_ENUM(en))
enum_set_internal_obj_vars(en, tv->vval.v_object);
break;
// execute Ex command line
case ISN_EXEC:
if (exec_command(iptr, iptr->isn_arg.string) == FAIL)
goto on_error;
break;
// execute Ex command line split at NL characters.
case ISN_EXEC_SPLIT:
{
source_cookie_T cookie;
char_u *line;
SOURCING_LNUM = iptr->isn_lnum;
CLEAR_FIELD(cookie);
cookie.sourcing_lnum = iptr->isn_lnum - 1;
cookie.nextline = iptr->isn_arg.string;
line = get_split_sourceline(0, &cookie, 0, 0);
if (do_cmdline(line,
get_split_sourceline, &cookie,
DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED)
== FAIL
|| did_emsg)
{
vim_free(line);
goto on_error;
}
vim_free(line);
}
break;
// execute Ex command line that is only a range
case ISN_EXECRANGE:
{
exarg_T ea;
char *error = NULL;
CLEAR_FIELD(ea);
ea.cmdidx = CMD_SIZE;
ea.addr_type = ADDR_LINES;
ea.cmd = iptr->isn_arg.string;
SOURCING_LNUM = iptr->isn_lnum;
parse_cmd_address(&ea, &error, FALSE);
if (ea.cmd == NULL)
goto on_error;
// error is always NULL when using ADDR_LINES
error = ex_range_without_command(&ea);
if (error != NULL)
{
emsg(error);
goto on_error;
}
}
break;
// Evaluate an expression with legacy syntax, push it onto the
// stack.
case ISN_LEGACY_EVAL:
{
char_u *arg = iptr->isn_arg.string;
int res;
int save_flags = cmdmod.cmod_flags;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
init_tv(tv);
cmdmod.cmod_flags |= CMOD_LEGACY;
res = eval0(arg, tv, NULL, &EVALARG_EVALUATE);
cmdmod.cmod_flags = save_flags;
if (res == FAIL)
goto on_error;
++ectx->ec_stack.ga_len;
}
break;
// push typeval VAR_INSTR with instructions to be executed
case ISN_INSTR:
{
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
tv->vval.v_instr = ALLOC_ONE(instr_T);
if (tv->vval.v_instr == NULL)
goto on_error;
++ectx->ec_stack.ga_len;
tv->v_type = VAR_INSTR;
tv->vval.v_instr->instr_ectx = ectx;
tv->vval.v_instr->instr_instr = iptr->isn_arg.instr;
}
break;
case ISN_SOURCE:
{
int notused;
SOURCING_LNUM = iptr->isn_lnum;
if (may_load_script((int)iptr->isn_arg.number, &notused)
== FAIL)
goto on_error;
}
break;
// execute :substitute with an expression
case ISN_SUBSTITUTE:
{
subs_T *subs = &iptr->isn_arg.subs;
source_cookie_T cookie;
struct subs_expr_S *save_instr = substitute_instr;
struct subs_expr_S subs_instr;
int res;
subs_instr.subs_ectx = ectx;
subs_instr.subs_instr = subs->subs_instr;
subs_instr.subs_status = OK;
substitute_instr = &subs_instr;
SOURCING_LNUM = iptr->isn_lnum;
// This is very much like ISN_EXEC
CLEAR_FIELD(cookie);
cookie.sourcing_lnum = iptr->isn_lnum - 1;
res = do_cmdline(subs->subs_cmd,
getsourceline, &cookie,
DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED);
substitute_instr = save_instr;
if (res == FAIL || did_emsg
|| subs_instr.subs_status == FAIL)
goto on_error;
}
break;
case ISN_FINISH:
goto done;
case ISN_REDIRSTART:
// create a dummy entry for var_redir_str()
if (alloc_redir_lval() == FAIL)
goto on_error;
// The output is stored in growarray "redir_ga" until
// redirection ends.
init_redir_ga();
redir_vname = 1;
break;
case ISN_REDIREND:
{
char_u *res = get_clear_redir_ga();
// End redirection, put redirected text on the stack.
clear_redir_lval();
redir_vname = 0;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
{
vim_free(res);
goto theend;
}
tv = STACK_TV_BOT(0);
tv->v_type = VAR_STRING;
tv->vval.v_string = res;
++ectx->ec_stack.ga_len;
}
break;
case ISN_CEXPR_AUCMD:
#ifdef FEAT_QUICKFIX
force_abort = TRUE;
if (trigger_cexpr_autocmd(iptr->isn_arg.number) == FAIL)
goto on_error;
force_abort = FALSE;
#endif
break;
case ISN_CEXPR_CORE:
#ifdef FEAT_QUICKFIX
{
exarg_T ea;
int res;
CLEAR_FIELD(ea);
ea.cmdidx = iptr->isn_arg.cexpr.cexpr_ref->cer_cmdidx;
ea.forceit = iptr->isn_arg.cexpr.cexpr_ref->cer_forceit;
ea.cmdlinep = &iptr->isn_arg.cexpr.cexpr_ref->cer_cmdline;
--ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(0);
SOURCING_LNUM = iptr->isn_lnum;
res = cexpr_core(&ea, tv);
clear_tv(tv);
if (res == FAIL)
goto on_error;
}
#endif
break;
// execute Ex command from pieces on the stack
case ISN_EXECCONCAT:
{
int count = iptr->isn_arg.number;
size_t len = 0;
int pass;
int i;
char_u *cmd = NULL;
char_u *str;
for (pass = 1; pass <= 2; ++pass)
{
for (i = 0; i < count; ++i)
{
tv = STACK_TV_BOT(i - count);
str = tv->vval.v_string;
if (str != NULL && *str != NUL)
{
if (pass == 2)
STRCPY(cmd + len, str);
len += STRLEN(str);
}
if (pass == 2)
clear_tv(tv);
}
if (pass == 1)
{
cmd = alloc(len + 1);
if (unlikely(cmd == NULL))
goto theend;
len = 0;
}
}
SOURCING_LNUM = iptr->isn_lnum;
do_cmdline_cmd(cmd);
vim_free(cmd);
}
break;
// execute :echo {string} ...
case ISN_ECHO:
{
int count = iptr->isn_arg.echo.echo_count;
int atstart = TRUE;
int needclr = TRUE;
int idx;
for (idx = 0; idx < count; ++idx)
{
tv = STACK_TV_BOT(idx - count);
echo_one(tv, iptr->isn_arg.echo.echo_with_white,
&atstart, &needclr);
clear_tv(tv);
}
if (needclr)
msg_clr_eos();
ectx->ec_stack.ga_len -= count;
}
break;
// :execute {string} ...
// :echomsg {string} ...
// :echowindow {string} ...
// :echoconsole {string} ...
// :echoerr {string} ...
case ISN_EXECUTE:
case ISN_ECHOMSG:
case ISN_ECHOWINDOW:
case ISN_ECHOCONSOLE:
case ISN_ECHOERR:
{
int count;
garray_T ga;
char_u buf[NUMBUFLEN];
char_u *p;
int len;
int failed = FALSE;
int idx;
if (iptr->isn_type == ISN_ECHOWINDOW)
count = iptr->isn_arg.echowin.ewin_count;
else
count = iptr->isn_arg.number;
ga_init2(&ga, 1, 80);
for (idx = 0; idx < count; ++idx)
{
tv = STACK_TV_BOT(idx - count);
if (iptr->isn_type == ISN_EXECUTE)
{
if (tv->v_type == VAR_CHANNEL
|| tv->v_type == VAR_JOB)
{
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_using_invalid_value_as_string_str),
vartype_name(tv->v_type));
break;
}
else
p = tv_get_string_buf(tv, buf);
}
else
{
SOURCING_LNUM = iptr->isn_lnum;
p = tv_stringify(tv, buf);
}
len = (int)STRLEN(p);
if (GA_GROW_FAILS(&ga, len + 2))
failed = TRUE;
else
{
if (ga.ga_len > 0)
((char_u *)(ga.ga_data))[ga.ga_len++] = ' ';
STRCPY((char_u *)(ga.ga_data) + ga.ga_len, p);
ga.ga_len += len;
}
clear_tv(tv);
}
ectx->ec_stack.ga_len -= count;
if (failed)
{
ga_clear(&ga);
goto on_error;
}
if (ga.ga_data != NULL)
{
if (iptr->isn_type == ISN_EXECUTE)
{
SOURCING_LNUM = iptr->isn_lnum;
do_cmdline_cmd((char_u *)ga.ga_data);
if (did_emsg)
{
ga_clear(&ga);
goto on_error;
}
}
else
{
msg_sb_eol();
if (iptr->isn_type == ISN_ECHOMSG)
{
msg_attr(ga.ga_data, echo_attr);
out_flush();
}
#ifdef HAS_MESSAGE_WINDOW
else if (iptr->isn_type == ISN_ECHOWINDOW)
{
start_echowindow(
iptr->isn_arg.echowin.ewin_time);
msg_attr(ga.ga_data, echo_attr);
end_echowindow();
}
#endif
else if (iptr->isn_type == ISN_ECHOCONSOLE)
{
ui_write(ga.ga_data, (int)STRLEN(ga.ga_data),
TRUE);
ui_write((char_u *)"\r\n", 2, TRUE);
}
else
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(ga.ga_data);
}
}
}
ga_clear(&ga);
}
break;
// load local variable or argument
case ISN_LOAD:
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_VAR(iptr->isn_arg.number);
if (tv->v_type == VAR_UNKNOWN)
{
// missing argument or default value v:none
STACK_TV_BOT(0)->v_type = VAR_SPECIAL;
STACK_TV_BOT(0)->vval.v_number = VVAL_NONE;
}
else
copy_tv(tv, STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
break;
// load v: variable
case ISN_LOADV:
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
copy_tv(get_vim_var_tv(iptr->isn_arg.number), STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
break;
// load s: variable in Vim9 script
case ISN_LOADSCRIPT:
{
scriptref_T *sref = iptr->isn_arg.script.scriptref;
svar_T *sv;
sv = get_script_svar(sref, ectx->ec_dfunc_idx);
if (sv == NULL)
goto theend;
allocate_if_null(sv);
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
copy_tv(sv->sv_tv, STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
}
break;
// load s: variable in old script or autoload import
case ISN_LOADS:
case ISN_LOADEXPORT:
{
int sid = iptr->isn_arg.loadstore.ls_sid;
hashtab_T *ht = &SCRIPT_VARS(sid);
char_u *name = iptr->isn_arg.loadstore.ls_name;
dictitem_T *di = find_var_in_ht(ht, 0, name, TRUE);
if (di == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_undefined_variable_str), name);
goto on_error;
}
else
{
if (iptr->isn_type == ISN_LOADEXPORT)
{
int idx = get_script_item_idx(sid, name, 0,
NULL, NULL);
svar_T *sv;
if (idx >= 0)
{
sv = ((svar_T *)SCRIPT_ITEM(sid)
->sn_var_vals.ga_data) + idx;
if ((sv->sv_flags & SVFLAG_EXPORTED) == 0)
{
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_item_not_exported_in_script_str),
name);
goto on_error;
}
}
}
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
copy_tv(&di->di_tv, STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
}
}
break;
// load g:/b:/w:/t: variable
case ISN_LOADG:
case ISN_LOADB:
case ISN_LOADW:
case ISN_LOADT:
{
int res = load_namespace_var(ectx, iptr->isn_type, iptr);
if (res == NOTDONE)
goto theend;
if (res == FAIL)
goto on_error;
}
break;
// load autoload variable
case ISN_LOADAUTO:
{
char_u *name = iptr->isn_arg.string;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
SOURCING_LNUM = iptr->isn_lnum;
if (eval_variable(name, (int)STRLEN(name), 0,
STACK_TV_BOT(0), NULL, EVAL_VAR_VERBOSE) == FAIL)
goto on_error;
++ectx->ec_stack.ga_len;
}
break;
// load g:/b:/w:/t: namespace
case ISN_LOADGDICT:
case ISN_LOADBDICT:
case ISN_LOADWDICT:
case ISN_LOADTDICT:
{
dict_T *d = NULL;
switch (iptr->isn_type)
{
case ISN_LOADGDICT: d = get_globvar_dict(); break;
case ISN_LOADBDICT: d = curbuf->b_vars; break;
case ISN_LOADWDICT: d = curwin->w_vars; break;
case ISN_LOADTDICT: d = curtab->tp_vars; break;
default: // Cannot reach here
goto theend;
}
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
tv->v_type = VAR_DICT;
tv->v_lock = 0;
tv->vval.v_dict = d;
++d->dv_refcount;
++ectx->ec_stack.ga_len;
}
break;
// load &option
case ISN_LOADOPT:
{
typval_T optval;
char_u *name = iptr->isn_arg.string;
// This is not expected to fail, name is checked during
// compilation: don't set SOURCING_LNUM.
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
if (eval_option(&name, &optval, TRUE) == FAIL)
goto theend;
*STACK_TV_BOT(0) = optval;
++ectx->ec_stack.ga_len;
}
break;
// load $ENV
case ISN_LOADENV:
{
typval_T optval;
char_u *name = iptr->isn_arg.string;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
// name is always valid, checked when compiling
(void)eval_env_var(&name, &optval, TRUE);
*STACK_TV_BOT(0) = optval;
++ectx->ec_stack.ga_len;
}
break;
// load @register
case ISN_LOADREG:
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
tv->v_type = VAR_STRING;
tv->v_lock = 0;
// This may result in NULL, which should be equivalent to an
// empty string.
tv->vval.v_string = get_reg_contents(
iptr->isn_arg.number, GREG_EXPR_SRC);
++ectx->ec_stack.ga_len;
break;
// store local variable
case ISN_STORE:
--ectx->ec_stack.ga_len;
tv = STACK_TV_VAR(iptr->isn_arg.number);
if (check_typval_is_value(STACK_TV_BOT(0)) == FAIL)
{
clear_tv(STACK_TV_BOT(0));
goto on_error;
}
clear_tv(tv);
*tv = *STACK_TV_BOT(0);
break;
// store s: variable in old script or autoload import
case ISN_STORES:
case ISN_STOREEXPORT:
{
int sid = iptr->isn_arg.loadstore.ls_sid;
char_u *name = iptr->isn_arg.loadstore.ls_name;
dictitem_T *di = NULL;
// First check for a variable from an exported autoload
// with an autoload_prefix; it would be in globals.
if (iptr->isn_type == ISN_STOREEXPORT)
di = find_var_autoload_prefix(name, sid, NULL, NULL);
// Then look for a variable in the script's variables.
if (di == NULL)
{
hashtab_T *ht = &SCRIPT_VARS(sid);
di = find_var_in_ht(ht, 0, STRNCMP("s:", name, 2) == 0
? name + 2 : name, TRUE);
}
--ectx->ec_stack.ga_len;
SOURCING_LNUM = iptr->isn_lnum;
if (di == NULL)
{
if (iptr->isn_type == ISN_STOREEXPORT)
{
semsg(_(e_undefined_variable_str), name);
clear_tv(STACK_TV_BOT(0));
goto on_error;
}
store_var(name, STACK_TV_BOT(0));
}
else
{
if (iptr->isn_type == ISN_STOREEXPORT)
{
int idx = get_script_item_idx(sid, name, 0,
NULL, NULL);
// can this ever fail?
if (idx >= 0)
{
svar_T *sv = ((svar_T *)SCRIPT_ITEM(sid)
->sn_var_vals.ga_data) + idx;
if ((sv->sv_flags & SVFLAG_EXPORTED) == 0)
{
semsg(_(e_item_not_exported_in_script_str),
name);
clear_tv(STACK_TV_BOT(0));
goto on_error;
}
}
}
if (var_check_permission(di, name) == FAIL)
{
clear_tv(STACK_TV_BOT(0));
goto on_error;
}
clear_tv(&di->di_tv);
di->di_tv = *STACK_TV_BOT(0);
}
}
break;
// store script-local variable in Vim9 script
case ISN_STORESCRIPT:
{
scriptref_T *sref = iptr->isn_arg.script.scriptref;
svar_T *sv;
sv = get_script_svar(sref, ectx->ec_dfunc_idx);
if (sv == NULL)
goto theend;
--ectx->ec_stack.ga_len;
// "const" and "final" are checked at compile time, locking
// the value needs to be checked here.
SOURCING_LNUM = iptr->isn_lnum;
if (value_check_lock(sv->sv_tv->v_lock, sv->sv_name, FALSE))
{
clear_tv(STACK_TV_BOT(0));
goto on_error;
}
clear_tv(sv->sv_tv);
*sv->sv_tv = *STACK_TV_BOT(0);
}
break;
// store option
case ISN_STOREOPT:
case ISN_STOREFUNCOPT:
{
char_u *opt_name = iptr->isn_arg.storeopt.so_name;
int opt_flags = iptr->isn_arg.storeopt.so_flags;
long n = 0;
char_u *s = NULL;
char *msg;
char_u numbuf[NUMBUFLEN];
char_u *tofree = NULL;
--ectx->ec_stack.ga_len;
SOURCING_LNUM = iptr->isn_lnum;
tv = STACK_TV_BOT(0);
if (tv->v_type == VAR_STRING)
{
s = tv->vval.v_string;
if (s == NULL)
s = (char_u *)"";
}
else if (iptr->isn_type == ISN_STOREFUNCOPT)
{
// If the option can be set to a function reference or
// a lambda and the passed value is a function
// reference, then convert it to the name (string) of
// the function reference.
s = tv2string(tv, &tofree, numbuf, 0);
if (s == NULL || *s == NUL)
{
// cannot happen?
clear_tv(tv);
vim_free(tofree);
goto on_error;
}
}
else
// must be VAR_NUMBER, CHECKTYPE makes sure
n = tv->vval.v_number;
msg = set_option_value(opt_name, n, s, opt_flags);
clear_tv(tv);
vim_free(tofree);
if (msg != NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(msg));
goto on_error;
}
}
break;
// store $ENV
case ISN_STOREENV:
--ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(0);
vim_setenv_ext(iptr->isn_arg.string, tv_get_string(tv));
clear_tv(tv);
break;
// store @r
case ISN_STOREREG:
{
int reg = iptr->isn_arg.number;
--ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(0);
write_reg_contents(reg, tv_get_string(tv), -1, FALSE);
clear_tv(tv);
}
break;
// store v: variable
case ISN_STOREV:
--ectx->ec_stack.ga_len;
if (set_vim_var_tv(iptr->isn_arg.number, STACK_TV_BOT(0))
== FAIL)
// should not happen, type is checked when compiling
goto on_error;
break;
// store g:/b:/w:/t: variable
case ISN_STOREG:
case ISN_STOREB:
case ISN_STOREW:
case ISN_STORET:
{
dictitem_T *di;
hashtab_T *ht;
char_u *name = iptr->isn_arg.string + 2;
switch (iptr->isn_type)
{
case ISN_STOREG:
ht = get_globvar_ht();
break;
case ISN_STOREB:
ht = &curbuf->b_vars->dv_hashtab;
break;
case ISN_STOREW:
ht = &curwin->w_vars->dv_hashtab;
break;
case ISN_STORET:
ht = &curtab->tp_vars->dv_hashtab;
break;
default: // Cannot reach here
goto theend;
}
--ectx->ec_stack.ga_len;
di = find_var_in_ht(ht, 0, name, TRUE);
if (di == NULL)
store_var(iptr->isn_arg.string, STACK_TV_BOT(0));
else
{
SOURCING_LNUM = iptr->isn_lnum;
if (var_check_permission(di, name) == FAIL)
goto on_error;
clear_tv(&di->di_tv);
di->di_tv = *STACK_TV_BOT(0);
}
}
break;
// store an autoload variable
case ISN_STOREAUTO:
SOURCING_LNUM = iptr->isn_lnum;
set_var(iptr->isn_arg.string, STACK_TV_BOT(-1), TRUE);
clear_tv(STACK_TV_BOT(-1));
--ectx->ec_stack.ga_len;
break;
// store number in local variable
case ISN_STORENR:
tv = STACK_TV_VAR(iptr->isn_arg.storenr.stnr_idx);
clear_tv(tv);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = iptr->isn_arg.storenr.stnr_val;
break;
// Store a value in a list, tuple, dict, blob or object variable.
case ISN_STOREINDEX:
{
int res = execute_storeindex(iptr, ectx);
if (res == FAIL)
goto on_error;
if (res == NOTDONE)
goto theend;
}
break;
// store value in list or blob range
case ISN_STORERANGE:
if (execute_storerange(iptr, ectx) == FAIL)
goto on_error;
break;
case ISN_LOAD_CLASSMEMBER:
{
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
classmember_T *cm = &iptr->isn_arg.classmember;
copy_tv(cm->cm_class->class_members_tv + cm->cm_idx,
STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
}
break;
case ISN_STORE_CLASSMEMBER:
{
classmember_T *cm = &iptr->isn_arg.classmember;
tv = &cm->cm_class->class_members_tv[cm->cm_idx];
clear_tv(tv);
*tv = *STACK_TV_BOT(-1);
--ectx->ec_stack.ga_len;
}
break;
// Load or store variable or argument from outer scope.
case ISN_LOADOUTER:
case ISN_STOREOUTER:
{
int depth = iptr->isn_arg.outer.outer_depth;
outer_T *outer = ectx->ec_outer_ref == NULL ? NULL
: ectx->ec_outer_ref->or_outer;
while (depth > 1 && outer != NULL)
{
outer = outer->out_up;
--depth;
}
if (outer == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
if (ectx->ec_frame_idx == ectx->ec_initial_frame_idx
|| ectx->ec_outer_ref == NULL)
// Possibly :def function called from legacy
// context.
emsg(_(e_closure_called_from_invalid_context));
else
iemsg("LOADOUTER depth more than scope levels");
goto theend;
}
if (depth < 0)
// Variable declared in loop. May be copied if the
// loop block has already ended.
tv = ((typval_T *)outer->out_loop[-depth - 1]
.stack->ga_data)
+ outer->out_loop[-depth - 1].var_idx
+ iptr->isn_arg.outer.outer_idx;
else
// Variable declared in a function. May be copied if
// the function has already returned.
tv = ((typval_T *)outer->out_stack->ga_data)
+ outer->out_frame_idx + STACK_FRAME_SIZE
+ iptr->isn_arg.outer.outer_idx;
if (iptr->isn_type == ISN_LOADOUTER)
{
typval_T *copy;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
// careful: ga_grow_inner may re-alloc the stack
if (depth < 0)
copy = ((typval_T *)outer->out_loop[-depth - 1]
.stack->ga_data)
+ outer->out_loop[-depth - 1].var_idx
+ iptr->isn_arg.outer.outer_idx;
else
copy = ((typval_T *)outer->out_stack->ga_data)
+ outer->out_frame_idx + STACK_FRAME_SIZE
+ iptr->isn_arg.outer.outer_idx;
// memory was freed, get tv again
if (copy != tv)
tv = copy;
copy_tv(tv, STACK_TV_BOT(0));
++ectx->ec_stack.ga_len;
}
else
{
--ectx->ec_stack.ga_len;
clear_tv(tv);
*tv = *STACK_TV_BOT(0);
}
}
break;
// unlet item in list or dict variable
case ISN_UNLETINDEX:
if (execute_unletindex(iptr, ectx) == FAIL)
goto on_error;
break;
// unlet range of items in list variable
case ISN_UNLETRANGE:
if (execute_unletrange(iptr, ectx) == FAIL)
goto on_error;
break;
// push constant
case ISN_PUSHNR:
case ISN_PUSHBOOL:
case ISN_PUSHSPEC:
case ISN_PUSHF:
case ISN_PUSHS:
case ISN_PUSHBLOB:
case ISN_PUSHFUNC:
case ISN_PUSHCHANNEL:
case ISN_PUSHJOB:
case ISN_PUSHOBJ:
case ISN_PUSHCLASS:
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
tv->v_lock = 0;
++ectx->ec_stack.ga_len;
switch (iptr->isn_type)
{
case ISN_PUSHNR:
tv->v_type = VAR_NUMBER;
tv->vval.v_number = iptr->isn_arg.number;
break;
case ISN_PUSHBOOL:
tv->v_type = VAR_BOOL;
tv->vval.v_number = iptr->isn_arg.number;
break;
case ISN_PUSHSPEC:
tv->v_type = VAR_SPECIAL;
tv->vval.v_number = iptr->isn_arg.number;
break;
case ISN_PUSHF:
tv->v_type = VAR_FLOAT;
tv->vval.v_float = iptr->isn_arg.fnumber;
break;
case ISN_PUSHBLOB:
blob_copy(iptr->isn_arg.blob, tv);
break;
case ISN_PUSHFUNC:
tv->v_type = VAR_FUNC;
if (iptr->isn_arg.string == NULL)
tv->vval.v_string = NULL;
else
tv->vval.v_string =
vim_strsave(iptr->isn_arg.string);
break;
case ISN_PUSHCHANNEL:
#ifdef FEAT_JOB_CHANNEL
tv->v_type = VAR_CHANNEL;
tv->vval.v_channel = NULL;
#endif
break;
case ISN_PUSHJOB:
#ifdef FEAT_JOB_CHANNEL
tv->v_type = VAR_JOB;
tv->vval.v_job = NULL;
#endif
break;
case ISN_PUSHOBJ:
tv->v_type = VAR_OBJECT;
tv->vval.v_object = NULL;
break;
case ISN_PUSHCLASS:
tv->v_type = VAR_CLASS;
tv->vval.v_class = iptr->isn_arg.classarg;
break;
default:
tv->v_type = VAR_STRING;
tv->vval.v_string = iptr->isn_arg.string == NULL
? NULL : vim_strsave(iptr->isn_arg.string);
}
break;
case ISN_AUTOLOAD:
{
char_u *name = iptr->isn_arg.string;
(void)script_autoload(name, FALSE);
if (find_func(name, TRUE))
{
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
tv->v_lock = 0;
++ectx->ec_stack.ga_len;
tv->v_type = VAR_FUNC;
tv->vval.v_string = vim_strsave(name);
}
else
{
int res = load_namespace_var(ectx, ISN_LOADG, iptr);
if (res == NOTDONE)
goto theend;
if (res == FAIL)
goto on_error;
}
}
break;
case ISN_UNLET:
if (do_unlet(iptr->isn_arg.unlet.ul_name,
iptr->isn_arg.unlet.ul_forceit) == FAIL)
goto on_error;
break;
case ISN_UNLETENV:
vim_unsetenv_ext(iptr->isn_arg.unlet.ul_name);
break;
case ISN_LOCKUNLOCK:
{
#ifdef LOG_LOCKVAR
ch_log(NULL, "LKVAR: execute INS_LOCKUNLOCK isn_arg %s",
iptr->isn_arg.string);
#endif
lval_root_T *lval_root_save = lval_root;
// Stack has the local variable, argument the whole :lock
// or :unlock command, like ISN_EXEC.
--ectx->ec_stack.ga_len;
lval_root_T root;
root.lr_tv = STACK_TV_BOT(0);
root.lr_cl_exec = iptr->isn_arg.lockunlock.lu_cl_exec;
root.lr_is_arg = iptr->isn_arg.lockunlock.lu_is_arg;
lval_root = &root;
int res = exec_command(iptr,
iptr->isn_arg.lockunlock.lu_string);
clear_tv(root.lr_tv);
lval_root = lval_root_save;
if (res == FAIL)
goto on_error;
}
break;
case ISN_LOCKCONST:
item_lock(STACK_TV_BOT(-1), 100, TRUE, TRUE);
break;
// create a list from items on the stack; uses a single allocation
// for the list header and the items
case ISN_NEWLIST:
if (exe_newlist(iptr->isn_arg.number, ectx) == FAIL)
goto theend;
break;
// create a tuple from items on the stack
case ISN_NEWTUPLE:
if (exe_newtuple(iptr->isn_arg.number, ectx) == FAIL)
goto theend;
break;
// create a dict from items on the stack
case ISN_NEWDICT:
{
int res;
SOURCING_LNUM = iptr->isn_lnum;
res = exe_newdict(iptr->isn_arg.number, ectx);
if (res == FAIL)
goto theend;
if (res == MAYBE)
goto on_error;
}
break;
case ISN_CONCAT:
if (exe_concat(iptr->isn_arg.number, ectx) == FAIL)
goto theend;
break;
// create a partial with NULL value
case ISN_NEWPARTIAL:
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
++ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_PARTIAL;
tv->v_lock = 0;
tv->vval.v_partial = NULL;
break;
// call a :def function
case ISN_DCALL:
SOURCING_LNUM = iptr->isn_lnum;
if (call_dfunc(iptr->isn_arg.dfunc.cdf_idx,
NULL,
iptr->isn_arg.dfunc.cdf_argcount,
ectx) == FAIL)
goto on_error;
break;
// call a method on an interface
case ISN_METHODCALL:
{
cmfunc_T *mfunc = iptr->isn_arg.mfunc;
SOURCING_LNUM = iptr->isn_lnum;
tv = STACK_TV_BOT(-1 - mfunc->cmf_argcount);
if (tv->v_type != VAR_OBJECT)
{
object_required_error(tv);
goto on_error;
}
object_T *obj = tv->vval.v_object;
if (obj == NULL)
{
emsg(_(e_using_null_object));
goto on_error;
}
ufunc_T *ufunc;
if (mfunc->cmf_is_super)
// Doing "super.Func", use the specific ufunc.
ufunc = mfunc->cmf_itf->class_obj_methods[
mfunc->cmf_idx];
else
{
class_T *cl = obj->obj_class;
// convert the interface index to the object index
int idx = object_index_from_itf_index(mfunc->cmf_itf,
TRUE, mfunc->cmf_idx, cl);
ufunc = cl->class_obj_methods[idx];
}
if (call_ufunc(ufunc, NULL, mfunc->cmf_argcount, ectx,
NULL, NULL) == FAIL)
goto on_error;
}
break;
// call a builtin function
case ISN_BCALL:
SOURCING_LNUM = iptr->isn_lnum;
if (call_bfunc(iptr->isn_arg.bfunc.cbf_idx,
iptr->isn_arg.bfunc.cbf_argcount,
ectx) == FAIL)
goto on_error;
break;
// call a funcref or partial
case ISN_PCALL:
{
cpfunc_T *pfunc = &iptr->isn_arg.pfunc;
int r;
typval_T partial_tv;
SOURCING_LNUM = iptr->isn_lnum;
if (pfunc->cpf_top)
{
// funcref is above the arguments
tv = STACK_TV_BOT(-pfunc->cpf_argcount - 1);
}
else
{
// Get the funcref from the stack.
--ectx->ec_stack.ga_len;
partial_tv = *STACK_TV_BOT(0);
tv = &partial_tv;
}
r = call_partial(tv, pfunc->cpf_argcount, ectx);
if (tv == &partial_tv)
clear_tv(&partial_tv);
if (r == FAIL)
goto on_error;
}
break;
case ISN_PCALL_END:
// PCALL finished, arguments have been consumed and replaced by
// the return value. Now clear the funcref from the stack,
// and move the return value in its place.
--ectx->ec_stack.ga_len;
clear_tv(STACK_TV_BOT(-1));
*STACK_TV_BOT(-1) = *STACK_TV_BOT(0);
break;
// call a user defined function or funcref/partial
case ISN_UCALL:
{
cufunc_T *cufunc = &iptr->isn_arg.ufunc;
SOURCING_LNUM = iptr->isn_lnum;
if (call_eval_func(cufunc->cuf_name, cufunc->cuf_argcount,
ectx, iptr) == FAIL)
goto on_error;
}
break;
// :defer func(arg)
case ISN_DEFER:
if (defer_command(iptr->isn_arg.defer.defer_var_idx,
iptr->isn_arg.defer.defer_argcount, ectx) == FAIL)
goto on_error;
break;
// Return from a :def function call without a value.
// Return from a constructor.
case ISN_RETURN_VOID:
case ISN_RETURN_OBJECT:
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
++ectx->ec_stack.ga_len;
if (iptr->isn_type == ISN_RETURN_VOID)
{
tv->v_type = VAR_VOID;
tv->vval.v_number = 0;
tv->v_lock = 0;
}
else
{
*tv = *STACK_TV_VAR(0);
object_T *obj = tv->vval.v_object;
++obj->obj_refcount;
// Lock all the constant object variables
obj_lock_const_vars(obj);
}
// FALLTHROUGH
// return from a :def function call with what is on the stack
case ISN_RETURN:
{
garray_T *trystack = &ectx->ec_trystack;
trycmd_T *trycmd = NULL;
///////////////////////////////////////////////////
// TODO: If FAIL, line number in output not correct
///////////////////////////////////////////////////
if (check_typval_is_value(STACK_TV_BOT(-1)) == FAIL)
goto theend;
if (trystack->ga_len > 0)
trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len - 1;
if (trycmd != NULL
&& trycmd->tcd_frame_idx == ectx->ec_frame_idx)
{
// jump to ":finally" or ":endtry"
if (trycmd->tcd_finally_idx != 0)
ectx->ec_iidx = trycmd->tcd_finally_idx;
else
ectx->ec_iidx = trycmd->tcd_endtry_idx;
trycmd->tcd_return = TRUE;
}
else
goto func_return;
}
break;
// push a partial, a reference to a compiled function
case ISN_FUNCREF:
{
partial_T *pt = ALLOC_CLEAR_ONE(partial_T);
ufunc_T *ufunc;
funcref_T *funcref = &iptr->isn_arg.funcref;
funcref_extra_T *extra = funcref->fr_extra;
if (pt == NULL)
goto theend;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
{
vim_free(pt);
goto theend;
}
if (extra != NULL && extra->fre_class != NULL)
{
class_T *cl;
if (extra->fre_object_method)
{
tv = STACK_TV_BOT(-1);
if (tv->v_type != VAR_OBJECT)
{
SOURCING_LNUM = iptr->isn_lnum;
object_required_error(tv);
vim_free(pt);
goto on_error;
}
object_T *obj = tv->vval.v_object;
if (obj == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_using_null_object));
vim_free(pt);
goto on_error;
}
cl = obj->obj_class;
// drop the value from the stack
clear_tv(tv);
--ectx->ec_stack.ga_len;
pt->pt_obj = obj;
++obj->obj_refcount;
}
else
cl = extra->fre_class;
if (extra->fre_object_method)
{
// object method
// convert the interface index to the object index
int idx =
object_index_from_itf_index(extra->fre_class,
TRUE, extra->fre_method_idx, cl);
ufunc = cl->class_obj_methods[idx];
}
else
{
// class method
ufunc =
cl->class_class_functions[extra->fre_method_idx];
}
}
else if (extra == NULL || extra->fre_func_name == NULL)
{
dfunc_T *pt_dfunc = ((dfunc_T *)def_functions.ga_data)
+ funcref->fr_dfunc_idx;
ufunc = pt_dfunc->df_ufunc;
}
else
{
ufunc = find_func(extra->fre_func_name, FALSE);
}
if (ufunc == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
iemsg("ufunc unexpectedly NULL for FUNCREF");
vim_free(pt);
goto theend;
}
if (fill_partial_and_closure(pt, ufunc,
extra == NULL ? NULL : &extra->fre_loopvar_info,
ectx) == FAIL)
goto theend;
tv = STACK_TV_BOT(0);
++ectx->ec_stack.ga_len;
tv->vval.v_partial = pt;
tv->v_type = VAR_PARTIAL;
tv->v_lock = 0;
}
break;
// Create a global function from a lambda.
case ISN_NEWFUNC:
{
newfuncarg_T *arg = iptr->isn_arg.newfunc.nf_arg;
if (copy_lambda_to_global_func(arg->nfa_lambda,
arg->nfa_global, &arg->nfa_loopvar_info,
ectx) == FAIL)
goto theend;
}
break;
// List functions
case ISN_DEF:
if (iptr->isn_arg.string == NULL)
list_functions(NULL);
else
{
exarg_T ea;
garray_T lines_to_free;
CLEAR_FIELD(ea);
ea.cmd = ea.arg = iptr->isn_arg.string;
ga_init2(&lines_to_free, sizeof(char_u *), 50);
SOURCING_LNUM = iptr->isn_lnum;
define_function(&ea, NULL, &lines_to_free, 0, NULL, 0, NULL);
ga_clear_strings(&lines_to_free);
}
break;
// jump if a condition is met
case ISN_JUMP:
{
jumpwhen_T when = iptr->isn_arg.jump.jump_when;
int error = FALSE;
int jump = TRUE;
if (when != JUMP_ALWAYS)
{
tv = STACK_TV_BOT(-1);
if (when == JUMP_IF_COND_FALSE
|| when == JUMP_IF_FALSE
|| when == JUMP_IF_COND_TRUE)
{
SOURCING_LNUM = iptr->isn_lnum;
jump = tv_get_bool_chk(tv, &error);
if (error)
goto on_error;
}
else
jump = tv2bool(tv);
if (when == JUMP_IF_FALSE || when == JUMP_IF_COND_FALSE)
jump = !jump;
if (when == JUMP_IF_FALSE || !jump)
{
// drop the value from the stack
clear_tv(tv);
--ectx->ec_stack.ga_len;
}
}
if (jump)
ectx->ec_iidx = iptr->isn_arg.jump.jump_where;
}
break;
// "while": jump to end if a condition is false
case ISN_WHILE:
{
int error = FALSE;
int jump = TRUE;
tv = STACK_TV_BOT(-1);
SOURCING_LNUM = iptr->isn_lnum;
jump = !tv_get_bool_chk(tv, &error);
if (error)
goto on_error;
// drop the value from the stack
clear_tv(tv);
--ectx->ec_stack.ga_len;
if (jump)
ectx->ec_iidx = iptr->isn_arg.whileloop.while_end;
// Store the current funcref count, may be used by
// ISN_ENDLOOP later
tv = STACK_TV_VAR(
iptr->isn_arg.whileloop.while_funcref_idx);
tv->vval.v_number = ectx->ec_funcrefs.ga_len;
}
break;
// Jump if an argument with a default value was already set and not
// v:none.
case ISN_JUMP_IF_ARG_SET:
case ISN_JUMP_IF_ARG_NOT_SET:
tv = STACK_TV_VAR(iptr->isn_arg.jumparg.jump_arg_off);
int arg_set = tv->v_type != VAR_UNKNOWN
&& !(tv->v_type == VAR_SPECIAL
&& tv->vval.v_number == VVAL_NONE);
if (iptr->isn_type == ISN_JUMP_IF_ARG_NOT_SET && !arg_set)
{
dfunc_T *df = ((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx;
ufunc_T *ufunc = df->df_ufunc;
// jump_arg_off is negative for arguments
size_t argidx = ufunc->uf_def_args.ga_len
+ iptr->isn_arg.jumparg.jump_arg_off
+ STACK_FRAME_SIZE;
type_T *tuple = ufunc->uf_arg_types[argidx];
CLEAR_POINTER(tv);
tv->v_type = tuple->tt_type;
}
if (iptr->isn_type == ISN_JUMP_IF_ARG_SET ? arg_set : !arg_set)
ectx->ec_iidx = iptr->isn_arg.jumparg.jump_where;
break;
// top of a for loop
case ISN_FOR:
if (execute_for(iptr, ectx) == FAIL)
goto theend;
break;
// end of a for or while loop
case ISN_ENDLOOP:
if (execute_endloop(iptr, ectx) == FAIL)
goto theend;
break;
// start of ":try" block
case ISN_TRY:
{
trycmd_T *trycmd = NULL;
if (GA_GROW_FAILS(&ectx->ec_trystack, 1))
goto theend;
trycmd = ((trycmd_T *)ectx->ec_trystack.ga_data)
+ ectx->ec_trystack.ga_len;
++ectx->ec_trystack.ga_len;
++trylevel;
CLEAR_POINTER(trycmd);
trycmd->tcd_frame_idx = ectx->ec_frame_idx;
trycmd->tcd_stack_len = ectx->ec_stack.ga_len;
trycmd->tcd_catch_idx =
iptr->isn_arg.tryref.try_ref->try_catch;
trycmd->tcd_finally_idx =
iptr->isn_arg.tryref.try_ref->try_finally;
trycmd->tcd_endtry_idx =
iptr->isn_arg.tryref.try_ref->try_endtry;
}
break;
case ISN_PUSHEXC:
if (current_exception == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
iemsg("Evaluating catch while current_exception is NULL");
goto theend;
}
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
tv = STACK_TV_BOT(0);
++ectx->ec_stack.ga_len;
tv->v_type = VAR_STRING;
tv->v_lock = 0;
tv->vval.v_string = vim_strsave(
(char_u *)current_exception->value);
break;
case ISN_CATCH:
{
garray_T *trystack = &ectx->ec_trystack;
trycmd_T *trycmd;
may_restore_cmdmod(&ectx->ec_funclocal);
trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len - 1;
trycmd->tcd_caught = TRUE;
trycmd->tcd_did_throw = FALSE;
did_emsg = got_int = did_throw = FALSE;
force_abort = need_rethrow = FALSE;
catch_exception(current_exception);
}
break;
case ISN_TRYCONT:
{
garray_T *trystack = &ectx->ec_trystack;
trycont_T *trycont = &iptr->isn_arg.trycont;
int i;
trycmd_T *trycmd;
int iidx = trycont->tct_where;
if (trystack->ga_len < trycont->tct_levels)
{
siemsg("TRYCONT: expected %d levels, found %d",
trycont->tct_levels, trystack->ga_len);
goto theend;
}
// Make :endtry jump to any outer try block and the last
// :endtry inside the loop to the loop start.
for (i = trycont->tct_levels; i > 0; --i)
{
trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len - i;
// Add one to tcd_cont to be able to jump to
// instruction with index zero.
trycmd->tcd_cont = iidx + 1;
iidx = trycmd->tcd_finally_idx == 0
? trycmd->tcd_endtry_idx : trycmd->tcd_finally_idx;
}
// jump to :finally or :endtry of current try statement
ectx->ec_iidx = iidx;
}
break;
case ISN_FINALLY:
{
garray_T *trystack = &ectx->ec_trystack;
trycmd_T *trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len - 1;
// Reset the index to avoid a return statement jumps here
// again.
trycmd->tcd_finally_idx = 0;
if (trycmd->tcd_caught)
{
// discard the exception
finish_exception(caught_stack);
trycmd->tcd_caught = FALSE;
}
break;
}
// end of ":try" block
case ISN_ENDTRY:
{
garray_T *trystack = &ectx->ec_trystack;
trycmd_T *trycmd;
--trystack->ga_len;
--trylevel;
trycmd = ((trycmd_T *)trystack->ga_data) + trystack->ga_len;
if (trycmd->tcd_did_throw)
did_throw = TRUE;
if (trycmd->tcd_caught)
{
// discard the exception
finish_exception(caught_stack);
}
if (trycmd->tcd_return)
goto func_return;
while (ectx->ec_stack.ga_len > trycmd->tcd_stack_len)
{
--ectx->ec_stack.ga_len;
clear_tv(STACK_TV_BOT(0));
}
if (trycmd->tcd_cont != 0)
// handling :continue: jump to outer try block or
// start of the loop
ectx->ec_iidx = trycmd->tcd_cont - 1;
}
break;
case ISN_THROW:
{
garray_T *trystack = &ectx->ec_trystack;
if (trystack->ga_len == 0 && trylevel == 0 && emsg_silent)
{
// Throwing an exception while using "silent!" causes
// the function to abort but not display an error.
tv = STACK_TV_BOT(-1);
clear_tv(tv);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = 0;
goto done;
}
--ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(0);
if (tv->vval.v_string == NULL
|| *skipwhite(tv->vval.v_string) == NUL)
{
vim_free(tv->vval.v_string);
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_throw_with_empty_string));
goto theend;
}
// Inside a "catch" we need to first discard the caught
// exception.
if (trystack->ga_len > 0)
{
trycmd_T *trycmd = ((trycmd_T *)trystack->ga_data)
+ trystack->ga_len - 1;
if (trycmd->tcd_caught)
{
// discard the exception
finish_exception(caught_stack);
trycmd->tcd_caught = FALSE;
}
}
SOURCING_LNUM = iptr->isn_lnum;
if (throw_exception(tv->vval.v_string, ET_USER, NULL)
== FAIL)
{
vim_free(tv->vval.v_string);
goto theend;
}
did_throw = TRUE;
}
break;
// compare with special values
case ISN_COMPAREBOOL:
case ISN_COMPARESPECIAL:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
varnumber_T arg1 = tv1->vval.v_number;
varnumber_T arg2 = tv2->vval.v_number;
int res;
if (iptr->isn_arg.op.op_type == EXPR_EQUAL)
res = arg1 == arg2;
else
res = arg1 != arg2;
--ectx->ec_stack.ga_len;
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
}
break;
case ISN_COMPARENULL:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
int res;
res = typval_compare_null(tv1, tv2);
if (res == MAYBE)
goto on_error;
if (iptr->isn_arg.op.op_type == EXPR_NEQUAL)
res = !res;
clear_tv(tv1);
clear_tv(tv2);
--ectx->ec_stack.ga_len;
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
}
break;
// Operation with two number arguments
case ISN_OPNR:
case ISN_COMPARENR:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
varnumber_T arg1 = tv1->vval.v_number;
varnumber_T arg2 = tv2->vval.v_number;
varnumber_T res = 0;
int div_zero = FALSE;
if (iptr->isn_arg.op.op_type == EXPR_LSHIFT
|| iptr->isn_arg.op.op_type == EXPR_RSHIFT)
{
if (arg2 < 0)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_bitshift_ops_must_be_positive));
goto on_error;
}
}
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: res = arg1 * arg2; break;
case EXPR_DIV: if (arg2 == 0)
div_zero = TRUE;
else
res = arg1 / arg2;
break;
case EXPR_REM: if (arg2 == 0)
div_zero = TRUE;
else
res = arg1 % arg2;
break;
case EXPR_SUB: res = arg1 - arg2; break;
case EXPR_ADD: res = arg1 + arg2; break;
case EXPR_EQUAL: res = arg1 == arg2; break;
case EXPR_NEQUAL: res = arg1 != arg2; break;
case EXPR_GREATER: res = arg1 > arg2; break;
case EXPR_GEQUAL: res = arg1 >= arg2; break;
case EXPR_SMALLER: res = arg1 < arg2; break;
case EXPR_SEQUAL: res = arg1 <= arg2; break;
case EXPR_LSHIFT: if (arg2 > MAX_LSHIFT_BITS)
res = 0;
else
res = (uvarnumber_T)arg1 << arg2;
break;
case EXPR_RSHIFT: if (arg2 > MAX_LSHIFT_BITS)
res = 0;
else
res = (uvarnumber_T)arg1 >> arg2;
break;
default: break;
}
--ectx->ec_stack.ga_len;
if (iptr->isn_type == ISN_COMPARENR)
{
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
}
else
tv1->vval.v_number = res;
if (div_zero)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_divide_by_zero));
goto on_error;
}
}
break;
// Computation with two float arguments
case ISN_OPFLOAT:
case ISN_COMPAREFLOAT:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
float_T arg1 = tv1->vval.v_float;
float_T arg2 = tv2->vval.v_float;
float_T res = 0;
int cmp = FALSE;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: res = arg1 * arg2; break;
case EXPR_DIV: res = arg1 / arg2; break;
case EXPR_SUB: res = arg1 - arg2; break;
case EXPR_ADD: res = arg1 + arg2; break;
case EXPR_EQUAL: cmp = arg1 == arg2; break;
case EXPR_NEQUAL: cmp = arg1 != arg2; break;
case EXPR_GREATER: cmp = arg1 > arg2; break;
case EXPR_GEQUAL: cmp = arg1 >= arg2; break;
case EXPR_SMALLER: cmp = arg1 < arg2; break;
case EXPR_SEQUAL: cmp = arg1 <= arg2; break;
default: cmp = 0; break;
}
--ectx->ec_stack.ga_len;
if (iptr->isn_type == ISN_COMPAREFLOAT)
{
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = cmp ? VVAL_TRUE : VVAL_FALSE;
}
else
tv1->vval.v_float = res;
}
break;
case ISN_COMPARELIST:
case ISN_COMPARETUPLE:
case ISN_COMPAREDICT:
case ISN_COMPAREFUNC:
case ISN_COMPARESTRING:
case ISN_COMPAREBLOB:
case ISN_COMPAREOBJECT:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
exprtype_T exprtype = iptr->isn_arg.op.op_type;
int ic = iptr->isn_arg.op.op_ic;
int res = FALSE;
int status = OK;
SOURCING_LNUM = iptr->isn_lnum;
if (iptr->isn_type == ISN_COMPARELIST)
{
status = typval_compare_list(tv1, tv2,
exprtype, ic, &res);
}
else if (iptr->isn_type == ISN_COMPARETUPLE)
{
status = typval_compare_tuple(tv1, tv2,
exprtype, ic, &res);
}
else if (iptr->isn_type == ISN_COMPAREDICT)
{
status = typval_compare_dict(tv1, tv2,
exprtype, ic, &res);
}
else if (iptr->isn_type == ISN_COMPAREFUNC)
{
status = typval_compare_func(tv1, tv2,
exprtype, ic, &res);
}
else if (iptr->isn_type == ISN_COMPARESTRING)
{
status = typval_compare_string(tv1, tv2,
exprtype, ic, &res);
}
else if (iptr->isn_type == ISN_COMPAREBLOB)
{
status = typval_compare_blob(tv1, tv2, exprtype, &res);
}
else // ISN_COMPAREOBJECT
{
status = typval_compare_object(tv1, tv2,
exprtype, FALSE, &res);
}
--ectx->ec_stack.ga_len;
clear_tv(tv1);
clear_tv(tv2);
tv1->v_type = VAR_BOOL;
tv1->vval.v_number = res ? VVAL_TRUE : VVAL_FALSE;
if (status == FAIL)
goto theend;
}
break;
case ISN_COMPAREANY:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
exprtype_T exprtype = iptr->isn_arg.op.op_type;
int ic = iptr->isn_arg.op.op_ic;
int status;
SOURCING_LNUM = iptr->isn_lnum;
status = typval_compare(tv1, tv2, exprtype, ic);
clear_tv(tv2);
--ectx->ec_stack.ga_len;
if (status == FAIL)
goto theend;
}
break;
case ISN_ADDLIST:
case ISN_ADDTUPLE:
case ISN_ADDBLOB:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
// add two lists or blobs
if (iptr->isn_type == ISN_ADDLIST)
{
if (iptr->isn_arg.op.op_type == EXPR_APPEND
&& tv1->vval.v_list != NULL)
list_extend(tv1->vval.v_list, tv2->vval.v_list,
NULL);
else
eval_addlist(tv1, tv2);
}
else if (iptr->isn_type == ISN_ADDTUPLE)
eval_addtuple(tv1, tv2);
else
eval_addblob(tv1, tv2);
clear_tv(tv2);
--ectx->ec_stack.ga_len;
}
break;
case ISN_LISTAPPEND:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
list_T *l = tv1->vval.v_list;
// add an item to a list
SOURCING_LNUM = iptr->isn_lnum;
if (l == NULL)
{
emsg(_(e_cannot_add_to_null_list));
goto on_error;
}
if (value_check_lock(l->lv_lock, NULL, FALSE))
goto on_error;
if (list_append_tv(l, tv2) == FAIL)
goto theend;
clear_tv(tv2);
--ectx->ec_stack.ga_len;
}
break;
case ISN_BLOBAPPEND:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
blob_T *b = tv1->vval.v_blob;
int error = FALSE;
varnumber_T n;
// add a number to a blob
if (b == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_cannot_add_to_null_blob));
goto on_error;
}
n = tv_get_number_chk(tv2, &error);
if (error)
goto on_error;
ga_append(&b->bv_ga, (int)n);
--ectx->ec_stack.ga_len;
}
break;
// Computation with two arguments of unknown type
case ISN_OPANY:
{
typval_T *tv1 = STACK_TV_BOT(-2);
typval_T *tv2 = STACK_TV_BOT(-1);
varnumber_T n1, n2;
float_T f1 = 0, f2 = 0;
int error = FALSE;
if (iptr->isn_arg.op.op_type == EXPR_ADD)
{
if (tv1->v_type == VAR_LIST && tv2->v_type == VAR_LIST)
{
eval_addlist(tv1, tv2);
clear_tv(tv2);
--ectx->ec_stack.ga_len;
break;
}
else if (tv1->v_type == VAR_TUPLE
&& tv2->v_type == VAR_TUPLE)
{
eval_addtuple(tv1, tv2);
clear_tv(tv2);
--ectx->ec_stack.ga_len;
break;
}
else if (tv1->v_type == VAR_BLOB
&& tv2->v_type == VAR_BLOB)
{
eval_addblob(tv1, tv2);
clear_tv(tv2);
--ectx->ec_stack.ga_len;
break;
}
}
if (tv1->v_type == VAR_FLOAT)
{
f1 = tv1->vval.v_float;
n1 = 0;
}
else
{
SOURCING_LNUM = iptr->isn_lnum;
n1 = tv_get_number_chk(tv1, &error);
if (error)
goto on_error;
if (tv2->v_type == VAR_FLOAT)
f1 = n1;
}
if (tv2->v_type == VAR_FLOAT)
{
f2 = tv2->vval.v_float;
n2 = 0;
}
else
{
n2 = tv_get_number_chk(tv2, &error);
if (error)
goto on_error;
if (tv1->v_type == VAR_FLOAT)
f2 = n2;
}
// if there is a float on either side the result is a float
if (tv1->v_type == VAR_FLOAT || tv2->v_type == VAR_FLOAT)
{
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: f1 = f1 * f2; break;
case EXPR_DIV: f1 = f1 / f2; break;
case EXPR_SUB: f1 = f1 - f2; break;
case EXPR_ADD: f1 = f1 + f2; break;
default: SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_cannot_use_percent_with_float));
goto on_error;
}
clear_tv(tv1);
clear_tv(tv2);
tv1->v_type = VAR_FLOAT;
tv1->vval.v_float = f1;
--ectx->ec_stack.ga_len;
}
else
{
int failed = FALSE;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: n1 = n1 * n2; break;
case EXPR_DIV: n1 = num_divide(n1, n2, &failed);
if (failed)
goto on_error;
break;
case EXPR_SUB: n1 = n1 - n2; break;
case EXPR_ADD: n1 = n1 + n2; break;
default: n1 = num_modulus(n1, n2, &failed);
if (failed)
goto on_error;
break;
}
clear_tv(tv1);
clear_tv(tv2);
tv1->v_type = VAR_NUMBER;
tv1->vval.v_number = n1;
--ectx->ec_stack.ga_len;
}
}
break;
case ISN_STRINDEX:
case ISN_STRSLICE:
{
int is_slice = iptr->isn_type == ISN_STRSLICE;
varnumber_T n1 = 0, n2;
char_u *res;
// string index: string is at stack-2, index at stack-1
// string slice: string is at stack-3, first index at
// stack-2, second index at stack-1
if (is_slice)
{
tv = STACK_TV_BOT(-2);
n1 = tv->vval.v_number;
}
tv = STACK_TV_BOT(-1);
n2 = tv->vval.v_number;
ectx->ec_stack.ga_len -= is_slice ? 2 : 1;
tv = STACK_TV_BOT(-1);
if (is_slice)
// Slice: Select the characters from the string
res = string_slice(tv->vval.v_string, n1, n2, FALSE);
else
// Index: The resulting variable is a string of a
// single character (including composing characters).
// If the index is too big or negative the result is
// empty.
res = char_from_string(tv->vval.v_string, n2);
vim_free(tv->vval.v_string);
tv->vval.v_string = res;
}
break;
case ISN_LISTINDEX:
case ISN_LISTSLICE:
case ISN_TUPLEINDEX:
case ISN_TUPLESLICE:
case ISN_BLOBINDEX:
case ISN_BLOBSLICE:
{
int is_slice = iptr->isn_type == ISN_LISTSLICE
|| iptr->isn_type == ISN_TUPLESLICE
|| iptr->isn_type == ISN_BLOBSLICE;
int is_blob = iptr->isn_type == ISN_BLOBINDEX
|| iptr->isn_type == ISN_BLOBSLICE;
int is_tuple = iptr->isn_type == ISN_TUPLEINDEX
|| iptr->isn_type == ISN_TUPLESLICE;
varnumber_T n1, n2;
typval_T *val_tv;
// list index: list is at stack-2, index at stack-1
// list slice: list is at stack-3, indexes at stack-2 and
// stack-1
// Same for tuple and blob.
val_tv = is_slice ? STACK_TV_BOT(-3) : STACK_TV_BOT(-2);
tv = STACK_TV_BOT(-1);
n1 = n2 = tv->vval.v_number;
clear_tv(tv);
if (is_slice)
{
tv = STACK_TV_BOT(-2);
n1 = tv->vval.v_number;
clear_tv(tv);
}
ectx->ec_stack.ga_len -= is_slice ? 2 : 1;
tv = STACK_TV_BOT(-1);
SOURCING_LNUM = iptr->isn_lnum;
if (is_blob)
{
if (blob_slice_or_index(val_tv->vval.v_blob, is_slice,
n1, n2, FALSE, tv) == FAIL)
goto on_error;
}
else if (is_tuple)
{
if (tuple_slice_or_index(val_tv->vval.v_tuple,
is_slice, n1, n2, FALSE, tv, TRUE) == FAIL)
goto on_error;
}
else
{
if (list_slice_or_index(val_tv->vval.v_list, is_slice,
n1, n2, FALSE, tv, TRUE) == FAIL)
goto on_error;
}
}
break;
case ISN_ANYINDEX:
case ISN_ANYSLICE:
{
int is_slice = iptr->isn_type == ISN_ANYSLICE;
typval_T *var1, *var2;
int res;
// index: composite is at stack-2, index at stack-1
// slice: composite is at stack-3, indexes at stack-2 and
// stack-1
tv = is_slice ? STACK_TV_BOT(-3) : STACK_TV_BOT(-2);
SOURCING_LNUM = iptr->isn_lnum;
if (check_can_index(tv, TRUE, TRUE) == FAIL)
goto on_error;
var1 = is_slice ? STACK_TV_BOT(-2) : STACK_TV_BOT(-1);
var2 = is_slice ? STACK_TV_BOT(-1) : NULL;
res = eval_index_inner(tv, is_slice, var1, var2,
FALSE, NULL, -1, TRUE);
clear_tv(var1);
if (is_slice)
clear_tv(var2);
ectx->ec_stack.ga_len -= is_slice ? 2 : 1;
if (res == FAIL)
goto on_error;
}
break;
case ISN_SLICE:
{
int count = iptr->isn_arg.number;
// type will have been checked to be a list
tv = STACK_TV_BOT(-1);
if (tv->v_type == VAR_LIST)
{
list_T *list = tv->vval.v_list;
// no error for short list, expect it to be checked
// earlier
if (list != NULL && list->lv_len >= count)
{
list_T *newlist = list_slice(list,
count, list->lv_len - 1);
if (newlist != NULL)
{
list_unref(list);
tv->vval.v_list = newlist;
++newlist->lv_refcount;
}
}
}
else
{
tuple_T *tuple = tv->vval.v_tuple;
// no error for short tuple, expect it to be checked
// earlier
if (tuple != NULL && TUPLE_LEN(tuple) >= count)
{
tuple_T *newtuple;
newtuple = tuple_slice(tuple, count,
TUPLE_LEN(tuple) - 1);
if (newtuple != NULL)
{
tuple_unref(tuple);
tv->v_type = VAR_TUPLE;
tv->vval.v_tuple = newtuple;
++newtuple->tv_refcount;
}
}
}
}
break;
case ISN_GETITEM:
{
listitem_T *li;
typval_T *item_tv;
getitem_T *gi = &iptr->isn_arg.getitem;
// Get list item: list is at stack-1, push item.
// List type and length is checked for when compiling.
tv = STACK_TV_BOT(-1 - gi->gi_with_op);
if (tv->v_type == VAR_LIST)
{
li = list_find(tv->vval.v_list, gi->gi_index);
item_tv = &li->li_tv;
}
else
item_tv = TUPLE_ITEM(tv->vval.v_tuple, gi->gi_index);
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
++ectx->ec_stack.ga_len;
copy_tv(item_tv, STACK_TV_BOT(-1));
// Useful when used in unpack assignment. Reset at
// ISN_DROP.
ectx->ec_where.wt_index = gi->gi_index + 1;
ectx->ec_where.wt_kind = WT_VARIABLE;
}
break;
// dict member with string key (dict['member'])
case ISN_MEMBER:
{
dict_T *dict;
char_u *key;
dictitem_T *di;
// dict member: dict is at stack-2, key at stack-1
tv = STACK_TV_BOT(-2);
// no need to check for VAR_DICT, CHECKTYPE will check.
dict = tv->vval.v_dict;
tv = STACK_TV_BOT(-1);
// no need to check for VAR_STRING, 2STRING will check.
key = tv->vval.v_string;
if (key == NULL)
key = (char_u *)"";
if ((di = dict_find(dict, key, -1)) == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_key_not_present_in_dictionary_str), key);
// If :silent! is used we will continue, make sure the
// stack contents makes sense and the dict stack is
// updated.
clear_tv(tv);
--ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
(void) dict_stack_save(tv);
tv->v_type = VAR_NUMBER;
tv->vval.v_number = 0;
goto on_fatal_error;
}
clear_tv(tv);
--ectx->ec_stack.ga_len;
// Put the dict used on the dict stack, it might be used by
// a dict function later.
tv = STACK_TV_BOT(-1);
if (dict_stack_save(tv) == FAIL)
goto on_fatal_error;
copy_tv(&di->di_tv, tv);
}
break;
// dict member with string key (dict.member)
// or can be an object
case ISN_STRINGMEMBER:
{
dict_T *dict;
dictitem_T *di;
tv = STACK_TV_BOT(-1);
if (tv->v_type == VAR_OBJECT
|| tv->v_type == VAR_CLASS)
{
if (dict_stack_save(tv) == FAIL)
goto on_fatal_error;
ufunc_T *ufunc = (((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx)->df_ufunc;
// Class or an object (not a Dict)
if (var_any_get_oc_member(ufunc->uf_class, iptr, tv) == FAIL)
goto on_error;
}
else
{
if (tv->v_type != VAR_DICT || tv->vval.v_dict == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_dictionary_required));
goto on_error;
}
dict = tv->vval.v_dict;
if ((di = dict_find(dict, iptr->isn_arg.string, -1))
== NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_key_not_present_in_dictionary_str),
iptr->isn_arg.string);
goto on_error;
}
// Put the dict used on the dict stack, it might be
// used by a dict function later.
if (dict_stack_save(tv) == FAIL)
goto on_fatal_error;
copy_tv(&di->di_tv, tv);
}
}
break;
case ISN_GET_OBJ_MEMBER:
case ISN_GET_ITF_MEMBER:
{
tv = STACK_TV_BOT(-1);
if (tv->v_type != VAR_OBJECT)
{
SOURCING_LNUM = iptr->isn_lnum;
object_required_error(tv);
goto on_error;
}
object_T *obj = tv->vval.v_object;
if (obj == NULL)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_using_null_object));
goto on_error;
}
int idx;
if (iptr->isn_type == ISN_GET_OBJ_MEMBER)
idx = iptr->isn_arg.classmember.cm_idx;
else
{
idx = iptr->isn_arg.classmember.cm_idx;
// convert the interface index to the object index
idx = object_index_from_itf_index(
iptr->isn_arg.classmember.cm_class,
FALSE, idx, obj->obj_class);
}
// The members are located right after the object struct.
typval_T *mtv = ((typval_T *)(obj + 1)) + idx;
if (mtv->v_type == VAR_UNKNOWN)
{
// Referencing an object variable (without a type)
// which is not yet initialized. So the type is not
// yet known.
ocmember_T *m = &obj->obj_class->class_obj_members[idx];
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_uninitialized_object_var_reference),
m->ocm_name);
goto on_error;
}
copy_tv(mtv, tv);
// Unreference the object after getting the member, it may
// be freed.
object_unref(obj);
}
break;
case ISN_STORE_THIS:
{
int idx = iptr->isn_arg.number;
object_T *obj = STACK_TV_VAR(0)->vval.v_object;
// the members are located right after the object struct
typval_T *mtv = ((typval_T *)(obj + 1)) + idx;
clear_tv(mtv);
*mtv = *STACK_TV_BOT(-1);
--ectx->ec_stack.ga_len;
}
break;
case ISN_CLEARDICT:
dict_stack_drop();
break;
case ISN_USEDICT:
{
typval_T *dict_tv = dict_stack_get_tv();
// Turn "dict.Func" into a partial for "Func" bound to
// "dict". Don't do this when "Func" is already a partial
// that was bound explicitly (pt_auto is FALSE).
tv = STACK_TV_BOT(-1);
if (dict_tv != NULL
&& dict_tv->v_type == VAR_DICT
&& dict_tv->vval.v_dict != NULL
&& (tv->v_type == VAR_FUNC
|| (tv->v_type == VAR_PARTIAL
&& (tv->vval.v_partial->pt_auto
|| tv->vval.v_partial->pt_dict == NULL))))
dict_tv->vval.v_dict =
make_partial(dict_tv->vval.v_dict, tv);
dict_stack_drop();
}
break;
case ISN_NEGATENR:
tv = STACK_TV_BOT(-1);
// CHECKTYPE should have checked the variable type
if (tv->v_type == VAR_FLOAT)
tv->vval.v_float = -tv->vval.v_float;
else
tv->vval.v_number = -tv->vval.v_number;
break;
case ISN_CHECKTYPE:
{
checktype_T *ct = &iptr->isn_arg.type;
int r;
where_T where = WHERE_INIT;
tv = STACK_TV_BOT((int)ct->ct_off);
SOURCING_LNUM = iptr->isn_lnum;
if (ct->ct_arg_idx > 0)
{
where.wt_index = ct->ct_arg_idx;
where.wt_kind = ct->ct_is_var ? WT_VARIABLE : WT_ARGUMENT;
}
where.wt_func_name = ectx->ec_where.wt_func_name;
r = check_typval_type(ct->ct_type, tv, where);
if (r == FAIL)
goto on_error;
// number 0 is FALSE, number 1 is TRUE
if (tv->v_type == VAR_NUMBER
&& ct->ct_type->tt_type == VAR_BOOL
&& (tv->vval.v_number == 0
|| tv->vval.v_number == 1))
{
tv->v_type = VAR_BOOL;
tv->vval.v_number = tv->vval.v_number
? VVAL_TRUE : VVAL_FALSE;
}
}
break;
case ISN_CHECKLEN:
{
int min_len = iptr->isn_arg.checklen.cl_min_len;
list_T *list = NULL;
tuple_T *tuple = NULL;
int len = 0;
tv = STACK_TV_BOT(-1);
int len_check_failed = FALSE;
if (tv->v_type == VAR_LIST)
{
list = tv->vval.v_list;
if (list == NULL || list->lv_len < min_len
|| (list->lv_len > min_len
&& !iptr->isn_arg.checklen.cl_more_OK))
len_check_failed = TRUE;
if (list != NULL)
len = list->lv_len;
}
else if (tv->v_type == VAR_TUPLE)
{
tuple = tv->vval.v_tuple;
if (tuple == NULL || TUPLE_LEN(tuple) < min_len
|| (TUPLE_LEN(tuple) > min_len
&& !iptr->isn_arg.checklen.cl_more_OK))
len_check_failed = TRUE;
if (tuple != NULL)
len = TUPLE_LEN(tuple);
}
else
len_check_failed = TRUE;
if (len_check_failed)
{
SOURCING_LNUM = iptr->isn_lnum;
semsg(_(e_expected_nr_items_but_got_nr),
min_len, len);
goto on_error;
}
}
break;
case ISN_SETTYPE:
set_tv_type(STACK_TV_BOT(-1), iptr->isn_arg.type.ct_type);
break;
case ISN_2BOOL:
case ISN_COND2BOOL:
{
int n;
int error = FALSE;
if (iptr->isn_type == ISN_2BOOL)
{
tv = STACK_TV_BOT(iptr->isn_arg.tobool.offset);
n = tv2bool(tv);
if (iptr->isn_arg.tobool.invert)
n = !n;
}
else
{
tv = STACK_TV_BOT(-1);
SOURCING_LNUM = iptr->isn_lnum;
n = tv_get_bool_chk(tv, &error);
if (error)
goto on_error;
}
clear_tv(tv);
tv->v_type = VAR_BOOL;
tv->vval.v_number = n ? VVAL_TRUE : VVAL_FALSE;
}
break;
case ISN_2STRING:
case ISN_2STRING_ANY:
SOURCING_LNUM = iptr->isn_lnum;
if (do_2string(STACK_TV_BOT(iptr->isn_arg.tostring.offset),
iptr->isn_type == ISN_2STRING_ANY,
iptr->isn_arg.tostring.flags) == FAIL)
goto on_error;
break;
case ISN_RANGE:
{
exarg_T ea;
char *errormsg;
ea.line2 = 0;
ea.addr_count = 0;
ea.addr_type = ADDR_LINES;
ea.cmd = iptr->isn_arg.string;
ea.skip = FALSE;
if (parse_cmd_address(&ea, &errormsg, FALSE) == FAIL)
goto on_error;
if (GA_GROW_FAILS(&ectx->ec_stack, 1))
goto theend;
++ectx->ec_stack.ga_len;
tv = STACK_TV_BOT(-1);
tv->v_type = VAR_NUMBER;
tv->v_lock = 0;
tv->vval.v_number = ea.line2;
}
break;
case ISN_PUT:
tv = NULL; // initialize it so we don't get a warning
isn_put_do(ectx, iptr, tv, FALSE);
break;
case ISN_IPUT:
tv = NULL;
isn_put_do(ectx, iptr, tv, TRUE);
break;
case ISN_CMDMOD:
ectx->ec_funclocal.floc_save_cmdmod = cmdmod;
ectx->ec_funclocal.floc_restore_cmdmod = TRUE;
ectx->ec_funclocal.floc_restore_cmdmod_stacklen =
ectx->ec_stack.ga_len;
cmdmod = *iptr->isn_arg.cmdmod.cf_cmdmod;
apply_cmdmod(&cmdmod);
break;
case ISN_CMDMOD_REV:
// filter regprog is owned by the instruction, don't free it
cmdmod.cmod_filter_regmatch.regprog = NULL;
undo_cmdmod(&cmdmod);
cmdmod = ectx->ec_funclocal.floc_save_cmdmod;
ectx->ec_funclocal.floc_restore_cmdmod = FALSE;
break;
case ISN_UNPACK:
// Check there is a valid list to unpack.
tv = STACK_TV_BOT(-1);
if (tv->v_type != VAR_LIST && tv->v_type != VAR_TUPLE)
{
SOURCING_LNUM = iptr->isn_lnum;
emsg(_(e_for_argument_must_be_sequence_of_lists_or_tuples));
goto on_error;
}
int rc;
if (tv->v_type == VAR_LIST)
rc = exec_unpack_list(ectx, iptr, tv);
else
rc = exec_unpack_tuple(ectx, iptr, tv);
if (rc != EXEC_OK)
{
if (rc == EXEC_FAIL)
goto on_error;
goto theend;
}
break;
case ISN_PROF_START:
case ISN_PROF_END:
{
#ifdef FEAT_PROFILE
funccall_T cookie;
ufunc_T *cur_ufunc =
(((dfunc_T *)def_functions.ga_data)
+ ectx->ec_dfunc_idx)->df_ufunc;
cookie.fc_func = cur_ufunc;
if (iptr->isn_type == ISN_PROF_START)
{
func_line_start(&cookie, iptr->isn_lnum);
// if we get here the instruction is executed
func_line_exec(&cookie);
}
else
func_line_end(&cookie);
#endif
}
break;
case ISN_DEBUG:
handle_debug(iptr, ectx);
break;
case ISN_SHUFFLE:
{
typval_T tmp_tv;
int item = iptr->isn_arg.shuffle.shfl_item;
int up = iptr->isn_arg.shuffle.shfl_up;
tmp_tv = *STACK_TV_BOT(-item);
for ( ; up > 0 && item > 1; --up)
{
*STACK_TV_BOT(-item) = *STACK_TV_BOT(-item + 1);
--item;
}
*STACK_TV_BOT(-item) = tmp_tv;
}
break;
case ISN_DROP:
--ectx->ec_stack.ga_len;
clear_tv(STACK_TV_BOT(0));
ectx->ec_where = (where_T)WHERE_INIT;
break;
case ISN_SCRIPTCTX_SET:
// change the script context. Used to evaluate an object
// member variable initialization expression in the context of
// the script where the class is defined.
current_sctx = iptr->isn_arg.setsctx;
break;
}
continue;
func_return:
// Restore previous function. If the frame pointer is where we started
// then there is none and we are done.
if (ectx->ec_frame_idx == ectx->ec_initial_frame_idx)
goto done;
if (func_return(ectx) == FAIL)
// only fails when out of memory
goto theend;
continue;
on_error:
// Jump here for an error that does not require aborting execution.
// If "emsg_silent" is set then ignore the error, unless it was set
// when calling the function.
if (did_emsg_cumul + did_emsg == ectx->ec_did_emsg_before
&& emsg_silent && did_emsg_def == 0)
{
// If a sequence of instructions causes an error while ":silent!"
// was used, restore the stack length and jump ahead to restoring
// the cmdmod.
if (ectx->ec_funclocal.floc_restore_cmdmod)
{
while (ectx->ec_stack.ga_len
> ectx->ec_funclocal.floc_restore_cmdmod_stacklen)
{
--ectx->ec_stack.ga_len;
clear_tv(STACK_TV_BOT(0));
}
while (ectx->ec_instr[ectx->ec_iidx].isn_type != ISN_CMDMOD_REV)
++ectx->ec_iidx;
}
continue;
}
on_fatal_error:
// Jump here for an error that messes up the stack.
// If we are not inside a try-catch started here, abort execution.
if (trylevel <= ectx->ec_trylevel_at_start)
goto theend;
}
done:
ret = OK;
theend:
may_invoke_defer_funcs(ectx);
dict_stack_clear(dict_stack_len_at_start);
ectx->ec_trylevel_at_start = save_trylevel_at_start;
return ret;
}
/*
* Execute the instructions from a VAR_INSTR typval and put the result in
* "rettv".
* Return OK or FAIL.
*/
int
exe_typval_instr(typval_T *tv, typval_T *rettv)
{
ectx_T *ectx = tv->vval.v_instr->instr_ectx;
isn_T *save_instr = ectx->ec_instr;
int save_iidx = ectx->ec_iidx;
int res;
// Initialize rettv so that it is safe for caller to invoke clear_tv(rettv)
// even when the compilation fails.
rettv->v_type = VAR_UNKNOWN;
ectx->ec_instr = tv->vval.v_instr->instr_instr;
res = exec_instructions(ectx);
if (res == OK)
{
*rettv = *STACK_TV_BOT(-1);
--ectx->ec_stack.ga_len;
}
ectx->ec_instr = save_instr;
ectx->ec_iidx = save_iidx;
return res;
}
/*
* Execute the instructions from an ISN_SUBSTITUTE command, which are in
* "substitute_instr".
*/
char_u *
exe_substitute_instr(void)
{
ectx_T *ectx = substitute_instr->subs_ectx;
isn_T *save_instr = ectx->ec_instr;
int save_iidx = ectx->ec_iidx;
char_u *res;
ectx->ec_instr = substitute_instr->subs_instr;
if (exec_instructions(ectx) == OK)
{
typval_T *tv = STACK_TV_BOT(-1);
res = typval2string(tv, TRUE);
--ectx->ec_stack.ga_len;
clear_tv(tv);
}
else
{
substitute_instr->subs_status = FAIL;
res = vim_strsave((char_u *)"");
}
ectx->ec_instr = save_instr;
ectx->ec_iidx = save_iidx;
return res;
}
/*
* Call a "def" function from old Vim script.
* Return OK or FAIL.
*/
int
call_def_function(
ufunc_T *ufunc,
int argc_arg, // nr of arguments
typval_T *argv, // arguments
int flags, // DEF_ flags
partial_T *partial, // optional partial for context
object_T *object, // object, e.g. for this.Func()
funccall_T *funccal,
typval_T *rettv) // return value
{
ectx_T ectx; // execution context
int argc = argc_arg;
int partial_argc = partial == NULL
|| (flags & DEF_USE_PT_ARGV) == 0
? 0 : partial->pt_argc;
int total_argc = argc + partial_argc;
typval_T *tv;
int idx;
int ret = FAIL;
int defcount = ufunc->uf_args.ga_len - total_argc;
sctx_T save_current_sctx = current_sctx;
int did_emsg_before = did_emsg_cumul + did_emsg;
int save_suppress_errthrow = suppress_errthrow;
msglist_T **saved_msg_list = NULL;
msglist_T *private_msg_list = NULL;
int save_emsg_silent_def = emsg_silent_def;
int save_did_emsg_def = did_emsg_def;
int orig_funcdepth;
int orig_nesting_level = ex_nesting_level;
// Get pointer to item in the stack.
#undef STACK_TV
#define STACK_TV(idx) (((typval_T *)ectx.ec_stack.ga_data) + idx)
// Get pointer to item at the bottom of the stack, -1 is the bottom.
#undef STACK_TV_BOT
#define STACK_TV_BOT(idx) (((typval_T *)ectx.ec_stack.ga_data) + ectx.ec_stack.ga_len + idx)
// Get pointer to a local variable on the stack. Negative for arguments.
#undef STACK_TV_VAR
#define STACK_TV_VAR(idx) (((typval_T *)ectx.ec_stack.ga_data) + ectx.ec_frame_idx + STACK_FRAME_SIZE + idx)
if (ufunc->uf_def_status == UF_NOT_COMPILED
|| ufunc->uf_def_status == UF_COMPILE_ERROR
|| (func_needs_compiling(ufunc, get_compile_type(ufunc))
&& compile_def_function(ufunc, FALSE,
get_compile_type(ufunc), NULL) == FAIL))
{
if (did_emsg_cumul + did_emsg == did_emsg_before)
semsg(_(e_function_is_not_compiled_str),
printable_func_name(ufunc));
return FAIL;
}
{
// Check the function was really compiled.
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ ufunc->uf_dfunc_idx;
if (dfunc->df_ufunc == NULL)
{
semsg(_(e_function_was_deleted_str), printable_func_name(ufunc));
return FAIL;
}
if (INSTRUCTIONS(dfunc) == NULL)
{
iemsg("using call_def_function() on not compiled function");
return FAIL;
}
}
// If depth of calling is getting too high, don't execute the function.
orig_funcdepth = funcdepth_get();
if (funcdepth_increment() == FAIL)
return FAIL;
CLEAR_FIELD(ectx);
ectx.ec_dfunc_idx = ufunc->uf_dfunc_idx;
ga_init2(&ectx.ec_stack, sizeof(typval_T), 500);
if (GA_GROW_FAILS(&ectx.ec_stack, 20))
{
funcdepth_decrement();
return FAIL;
}
ga_init2(&ectx.ec_trystack, sizeof(trycmd_T), 10);
ga_init2(&ectx.ec_funcrefs, sizeof(partial_T *), 10);
ectx.ec_did_emsg_before = did_emsg_before;
++ex_nesting_level;
idx = total_argc - ufunc->uf_args.ga_len;
if (idx > 0 && ufunc->uf_va_name == NULL)
{
semsg(NGETTEXT(e_one_argument_too_many, e_nr_arguments_too_many,
idx), idx);
goto failed_early;
}
idx = total_argc - ufunc->uf_args.ga_len + ufunc->uf_def_args.ga_len;
if (idx < 0)
{
semsg(NGETTEXT(e_one_argument_too_few, e_nr_arguments_too_few,
-idx), -idx);
goto failed_early;
}
// Put values from the partial and arguments on the stack, but no more than
// what the function expects. A lambda can be called with more arguments
// than it uses.
for (idx = 0; idx < total_argc
&& (ufunc->uf_va_name != NULL || idx < ufunc->uf_args.ga_len);
++idx)
{
int argv_idx = idx - partial_argc;
tv = idx < partial_argc ? partial->pt_argv + idx : argv + argv_idx;
if (idx >= ufunc->uf_args.ga_len - ufunc->uf_def_args.ga_len
&& tv->v_type == VAR_SPECIAL
&& tv->vval.v_number == VVAL_NONE)
{
// Use the default value.
STACK_TV_BOT(0)->v_type = VAR_UNKNOWN;
}
else
{
int done = FALSE;
if (ufunc->uf_arg_types != NULL && idx < ufunc->uf_args.ga_len)
{
type_T *expected = ufunc->uf_arg_types[idx];
if (expected->tt_type == VAR_FLOAT && tv->v_type == VAR_NUMBER)
{
// When a float is expected and a number was given, convert
// the value.
STACK_TV_BOT(0)->v_type = VAR_FLOAT;
STACK_TV_BOT(0)->v_lock = 0;
STACK_TV_BOT(0)->vval.v_float = tv->vval.v_number;
done = TRUE;
}
else if (check_typval_arg_type(expected, tv,
NULL, argv_idx + 1) == FAIL)
goto failed_early;
}
if (!done)
copy_tv(tv, STACK_TV_BOT(0));
}
++ectx.ec_stack.ga_len;
}
// Turn varargs into a list. Empty list if no args.
if (ufunc->uf_va_name != NULL)
{
int vararg_count = argc - ufunc->uf_args.ga_len;
if (vararg_count < 0)
vararg_count = 0;
else
argc -= vararg_count;
if (exe_newlist(vararg_count, &ectx) == FAIL)
goto failed_early;
// Check the type of the list items.
tv = STACK_TV_BOT(-1);
if (ufunc->uf_va_type != NULL
&& ufunc->uf_va_type != &t_list_any
&& ufunc->uf_va_type->tt_member != &t_any
&& tv->vval.v_list != NULL)
{
type_T *expected = ufunc->uf_va_type->tt_member;
listitem_T *li = tv->vval.v_list->lv_first;
for (idx = 0; idx < vararg_count; ++idx)
{
if (check_typval_arg_type(expected, &li->li_tv,
NULL, argc + idx + 1) == FAIL)
goto failed_early;
li = li->li_next;
}
}
if (defcount > 0)
// Move varargs list to below missing default arguments.
*STACK_TV_BOT(defcount - 1) = *STACK_TV_BOT(-1);
--ectx.ec_stack.ga_len;
}
// Make space for omitted arguments, will store default value below.
// Any varargs list goes after them.
if (defcount > 0)
for (idx = 0; idx < defcount; ++idx)
{
STACK_TV_BOT(0)->v_type = VAR_UNKNOWN;
++ectx.ec_stack.ga_len;
}
if (ufunc->uf_va_name != NULL)
++ectx.ec_stack.ga_len;
// Frame pointer points to just after arguments.
ectx.ec_frame_idx = ectx.ec_stack.ga_len;
ectx.ec_initial_frame_idx = ectx.ec_frame_idx;
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ ufunc->uf_dfunc_idx;
ufunc_T *base_ufunc = dfunc->df_ufunc;
// "uf_partial" is on the ufunc that "df_ufunc" points to, as is done
// by copy_lambda_to_global_func().
if (partial != NULL || base_ufunc->uf_partial != NULL)
{
ectx.ec_outer_ref = ALLOC_CLEAR_ONE(outer_ref_T);
if (ectx.ec_outer_ref == NULL)
goto failed_early;
if (partial != NULL)
{
outer_T *outer = get_pt_outer(partial);
if (outer->out_stack == NULL && outer->out_loop_size == 0)
{
// no stack was set
if (current_ectx != NULL)
{
if (current_ectx->ec_outer_ref != NULL
&& current_ectx->ec_outer_ref->or_outer != NULL)
ectx.ec_outer_ref->or_outer =
current_ectx->ec_outer_ref->or_outer;
}
// else: should there be an error here?
}
else
{
ectx.ec_outer_ref->or_outer = outer;
++partial->pt_refcount;
ectx.ec_outer_ref->or_partial = partial;
}
}
else
{
ectx.ec_outer_ref->or_outer = &base_ufunc->uf_partial->pt_outer;
++base_ufunc->uf_partial->pt_refcount;
ectx.ec_outer_ref->or_partial = base_ufunc->uf_partial;
}
}
}
// dummy frame entries
for (idx = 0; idx < STACK_FRAME_SIZE; ++idx)
{
STACK_TV(ectx.ec_stack.ga_len)->v_type = VAR_UNKNOWN;
++ectx.ec_stack.ga_len;
}
{
// Reserve space for local variables and any closure reference count.
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data)
+ ufunc->uf_dfunc_idx;
// Initialize variables to zero. That avoids having to generate
// initializing instructions for "var nr: number", "var x: any", etc.
for (idx = 0; idx < dfunc->df_varcount; ++idx)
{
STACK_TV_VAR(idx)->v_type = VAR_NUMBER;
STACK_TV_VAR(idx)->vval.v_number = 0;
}
ectx.ec_stack.ga_len += dfunc->df_varcount;
if (object != NULL)
{
// the object is always the variable at index zero
tv = STACK_TV_VAR(0);
tv->v_type = VAR_OBJECT;
tv->vval.v_object = object;
}
if (dfunc->df_has_closure)
{
// Initialize the variable that counts how many closures were
// created. This is used in handle_closure_in_use().
STACK_TV_VAR(idx)->v_type = VAR_NUMBER;
STACK_TV_VAR(idx)->vval.v_number = 0;
++ectx.ec_stack.ga_len;
}
ectx.ec_instr = INSTRUCTIONS(dfunc);
}
// Store the execution context in funccal, used by invoke_all_defer().
if (funccal != NULL)
funccal->fc_ectx = &ectx;
// Following errors are in the function, not the caller.
// Commands behave like vim9script.
estack_push_ufunc(ufunc, 1);
current_sctx = ufunc->uf_script_ctx;
current_sctx.sc_version = SCRIPT_VERSION_VIM9;
// Use a specific location for storing error messages to be converted to an
// exception.
saved_msg_list = msg_list;
msg_list = &private_msg_list;
// Do turn errors into exceptions.
suppress_errthrow = FALSE;
// Do not delete the function while executing it.
++ufunc->uf_calls;
// When ":silent!" was used before calling then we still abort the
// function. If ":silent!" is used in the function then we don't.
emsg_silent_def = emsg_silent;
did_emsg_def = 0;
ectx.ec_where = (where_T)WHERE_INIT;
/*
* Execute the instructions until done.
*/
ret = exec_instructions(&ectx);
if (ret == OK)
{
// function finished, get result from the stack.
if (ufunc->uf_ret_type == &t_void)
{
rettv->v_type = VAR_VOID;
}
else
{
tv = STACK_TV_BOT(-1);
*rettv = *tv;
tv->v_type = VAR_UNKNOWN;
}
}
// When failed need to unwind the call stack.
unwind_def_callstack(&ectx);
// Deal with any remaining closures, they may be in use somewhere.
if (ectx.ec_funcrefs.ga_len > 0)
{
handle_closure_in_use(&ectx, FALSE);
ga_clear(&ectx.ec_funcrefs);
}
estack_pop();
current_sctx = save_current_sctx;
if (--ufunc->uf_calls <= 0 && ufunc->uf_refcount <= 0)
// Function was unreferenced while being used, free it now.
func_clear_free(ufunc, FALSE);
if (*msg_list != NULL && saved_msg_list != NULL)
{
msglist_T **plist = saved_msg_list;
// Append entries from the current msg_list (uncaught exceptions) to
// the saved msg_list.
while (*plist != NULL)
plist = &(*plist)->next;
*plist = *msg_list;
}
msg_list = saved_msg_list;
if (ectx.ec_funclocal.floc_restore_cmdmod)
{
cmdmod.cmod_filter_regmatch.regprog = NULL;
undo_cmdmod(&cmdmod);
cmdmod = ectx.ec_funclocal.floc_save_cmdmod;
}
emsg_silent_def = save_emsg_silent_def;
did_emsg_def += save_did_emsg_def;
failed_early:
// Free all arguments and local variables.
for (idx = 0; idx < ectx.ec_stack.ga_len; ++idx)
{
tv = STACK_TV(idx);
if (tv->v_type != VAR_NUMBER && tv->v_type != VAR_UNKNOWN)
clear_tv(tv);
}
ex_nesting_level = orig_nesting_level;
vim_free(ectx.ec_stack.ga_data);
vim_free(ectx.ec_trystack.ga_data);
if (ectx.ec_outer_ref != NULL)
{
if (ectx.ec_outer_ref->or_outer_allocated)
vim_free(ectx.ec_outer_ref->or_outer);
partial_unref(ectx.ec_outer_ref->or_partial);
vim_free(ectx.ec_outer_ref);
}
// Not sure if this is necessary.
suppress_errthrow = save_suppress_errthrow;
if (ret != OK && did_emsg_cumul + did_emsg == did_emsg_before
&& !need_rethrow)
semsg(_(e_unknown_error_while_executing_str),
printable_func_name(ufunc));
funcdepth_restore(orig_funcdepth);
return ret;
}
/*
* Called when a def function has finished (possibly failed).
* Invoke all the function returns to clean up and invoke deferred functions,
* except the toplevel one.
*/
void
unwind_def_callstack(ectx_T *ectx)
{
while (ectx->ec_frame_idx != ectx->ec_initial_frame_idx)
func_return(ectx);
}
/*
* Invoke any deferred functions for the top function in "ectx".
*/
void
may_invoke_defer_funcs(ectx_T *ectx)
{
dfunc_T *dfunc = ((dfunc_T *)def_functions.ga_data) + ectx->ec_dfunc_idx;
if (dfunc->df_defer_var_idx > 0)
invoke_defer_funcs(ectx);
}
/*
* Return loopvarinfo in a printable form in allocated memory.
*/
static char_u *
printable_loopvarinfo(loopvarinfo_T *lvi)
{
garray_T ga;
int depth;
ga_init2(&ga, 1, 100);
for (depth = 0; depth < lvi->lvi_depth; ++depth)
{
if (ga_grow(&ga, 50) == FAIL)
break;
if (lvi->lvi_loop[depth].var_idx == 0)
STRCPY((char *)ga.ga_data + ga.ga_len, " -");
else
vim_snprintf((char *)ga.ga_data + ga.ga_len, 50, " $%d-$%d",
lvi->lvi_loop[depth].var_idx,
lvi->lvi_loop[depth].var_idx
+ lvi->lvi_loop[depth].var_count - 1);
ga.ga_len = (int)STRLEN(ga.ga_data);
}
return ga.ga_data;
}
/*
* List instructions "instr" up to "instr_count" or until ISN_FINISH.
* "ufunc" has the source lines, NULL for the instructions of ISN_SUBSTITUTE.
* "pfx" is prefixed to every line.
*/
static void
list_instructions(char *pfx, isn_T *instr, int instr_count, ufunc_T *ufunc)
{
int line_idx = 0;
int prev_current = 0;
int current;
int def_arg_idx = 0;
sctx_T script_ctx = current_sctx;
for (current = 0; current < instr_count; ++current)
{
isn_T *iptr = &instr[current];
char *line;
if (ufunc != NULL)
{
while (line_idx < iptr->isn_lnum
&& line_idx < ufunc->uf_lines.ga_len)
{
if (current > prev_current)
{
msg_puts("\n\n");
prev_current = current;
}
line = ((char **)ufunc->uf_lines.ga_data)[line_idx++];
if (line != NULL)
msg(line);
}
if (iptr->isn_type == ISN_JUMP_IF_ARG_SET)
{
int first_def_arg = ufunc->uf_args.ga_len
- ufunc->uf_def_args.ga_len;
if (def_arg_idx > 0)
msg_puts("\n\n");
msg_start();
msg_puts(" ");
msg_puts(((char **)(ufunc->uf_args.ga_data))[
first_def_arg + def_arg_idx]);
msg_puts(" = ");
msg_puts(((char **)(ufunc->uf_def_args.ga_data))[def_arg_idx++]);
msg_clr_eos();
msg_end();
}
}
switch (iptr->isn_type)
{
case ISN_CONSTRUCT:
smsg("%s%4d NEW %s size %d", pfx, current,
iptr->isn_arg.construct.construct_class->class_name,
(int)iptr->isn_arg.construct.construct_size);
break;
case ISN_EXEC:
smsg("%s%4d EXEC %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_EXEC_SPLIT:
smsg("%s%4d EXEC_SPLIT %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_EXECRANGE:
smsg("%s%4d EXECRANGE %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LEGACY_EVAL:
smsg("%s%4d EVAL legacy %s", pfx, current,
iptr->isn_arg.string);
break;
case ISN_REDIRSTART:
smsg("%s%4d REDIR", pfx, current);
break;
case ISN_REDIREND:
smsg("%s%4d REDIR END%s", pfx, current,
iptr->isn_arg.number ? " append" : "");
break;
case ISN_CEXPR_AUCMD:
#ifdef FEAT_QUICKFIX
smsg("%s%4d CEXPR pre %s", pfx, current,
cexpr_get_auname(iptr->isn_arg.number));
#endif
break;
case ISN_CEXPR_CORE:
#ifdef FEAT_QUICKFIX
{
cexprref_T *cer = iptr->isn_arg.cexpr.cexpr_ref;
smsg("%s%4d CEXPR core %s%s \"%s\"", pfx, current,
cexpr_get_auname(cer->cer_cmdidx),
cer->cer_forceit ? "!" : "",
cer->cer_cmdline);
}
#endif
break;
case ISN_INSTR:
smsg("%s%4d INSTR", pfx, current);
list_instructions(" ", iptr->isn_arg.instr, INT_MAX, NULL);
msg(" -------------");
break;
case ISN_SOURCE:
{
scriptitem_T *si = SCRIPT_ITEM(iptr->isn_arg.number);
smsg("%s%4d SOURCE %s", pfx, current, si->sn_name);
}
break;
case ISN_SUBSTITUTE:
{
subs_T *subs = &iptr->isn_arg.subs;
smsg("%s%4d SUBSTITUTE %s", pfx, current, subs->subs_cmd);
list_instructions(" ", subs->subs_instr, INT_MAX, NULL);
msg(" -------------");
}
break;
case ISN_EXECCONCAT:
smsg("%s%4d EXECCONCAT %lld", pfx, current,
(varnumber_T)iptr->isn_arg.number);
break;
case ISN_ECHO:
{
echo_T *echo = &iptr->isn_arg.echo;
smsg("%s%4d %s %d", pfx, current,
echo->echo_with_white ? "ECHO" : "ECHON",
echo->echo_count);
}
break;
case ISN_EXECUTE:
smsg("%s%4d EXECUTE %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_ECHOMSG:
smsg("%s%4d ECHOMSG %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_ECHOWINDOW:
if (iptr->isn_arg.echowin.ewin_time > 0)
smsg("%s%4d ECHOWINDOW %d (%ld sec)", pfx, current,
iptr->isn_arg.echowin.ewin_count,
iptr->isn_arg.echowin.ewin_time);
else
smsg("%s%4d ECHOWINDOW %d", pfx, current,
iptr->isn_arg.echowin.ewin_count);
break;
case ISN_ECHOCONSOLE:
smsg("%s%4d ECHOCONSOLE %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_ECHOERR:
smsg("%s%4d ECHOERR %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_LOAD:
{
if (iptr->isn_arg.number < 0)
smsg("%s%4d LOAD arg[%lld]", pfx, current,
(varnumber_T)(iptr->isn_arg.number
+ STACK_FRAME_SIZE));
else
smsg("%s%4d LOAD $%lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
}
break;
case ISN_LOADOUTER:
{
isn_outer_T *outer = &iptr->isn_arg.outer;
if (outer->outer_idx < 0)
smsg("%s%4d LOADOUTER level %d arg[%d]", pfx, current,
outer->outer_depth,
outer->outer_idx + STACK_FRAME_SIZE);
else if (outer->outer_depth < 0)
smsg("%s%4d LOADOUTER $%d in loop level %d",
pfx, current,
outer->outer_idx,
-outer->outer_depth);
else
smsg("%s%4d LOADOUTER level %d $%d", pfx, current,
outer->outer_depth,
outer->outer_idx);
}
break;
case ISN_LOADV:
smsg("%s%4d LOADV v:%s", pfx, current,
get_vim_var_name(iptr->isn_arg.number));
break;
case ISN_LOADSCRIPT:
{
scriptref_T *sref = iptr->isn_arg.script.scriptref;
scriptitem_T *si = SCRIPT_ITEM(sref->sref_sid);
svar_T *sv;
sctx_T save_sctx = current_sctx;
current_sctx = script_ctx;
sv = get_script_svar(sref, -1);
current_sctx = save_sctx;
if (sv == NULL)
smsg("%s%4d LOADSCRIPT [deleted] from %s",
pfx, current, si->sn_name);
else
smsg("%s%4d LOADSCRIPT %s-%d from %s", pfx, current,
sv->sv_name,
sref->sref_idx,
si->sn_name);
}
break;
case ISN_LOADS:
case ISN_LOADEXPORT:
{
scriptitem_T *si = SCRIPT_ITEM(
iptr->isn_arg.loadstore.ls_sid);
smsg("%s%4d %s s:%s from %s", pfx, current,
iptr->isn_type == ISN_LOADS ? "LOADS"
: "LOADEXPORT",
iptr->isn_arg.loadstore.ls_name, si->sn_name);
}
break;
case ISN_LOADAUTO:
smsg("%s%4d LOADAUTO %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOADG:
smsg("%s%4d LOADG g:%s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOADB:
smsg("%s%4d LOADB b:%s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOADW:
smsg("%s%4d LOADW w:%s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOADT:
smsg("%s%4d LOADT t:%s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOADGDICT:
smsg("%s%4d LOAD g:", pfx, current);
break;
case ISN_LOADBDICT:
smsg("%s%4d LOAD b:", pfx, current);
break;
case ISN_LOADWDICT:
smsg("%s%4d LOAD w:", pfx, current);
break;
case ISN_LOADTDICT:
smsg("%s%4d LOAD t:", pfx, current);
break;
case ISN_LOADOPT:
smsg("%s%4d LOADOPT %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOADENV:
smsg("%s%4d LOADENV %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOADREG:
smsg("%s%4d LOADREG @%c", pfx, current,
(int)(iptr->isn_arg.number));
break;
case ISN_STORE:
if (iptr->isn_arg.number < 0)
smsg("%s%4d STORE arg[%lld]", pfx, current,
iptr->isn_arg.number + STACK_FRAME_SIZE);
else
smsg("%s%4d STORE $%lld", pfx, current,
iptr->isn_arg.number);
break;
case ISN_STOREOUTER:
{
isn_outer_T *outer = &iptr->isn_arg.outer;
if (outer->outer_depth == OUTER_LOOP_DEPTH)
smsg("%s%4d STOREOUTER level 1 $%d in loop",
pfx, current, outer->outer_idx);
else
smsg("%s%4d STOREOUTER level %d $%d", pfx, current,
outer->outer_depth, outer->outer_idx);
}
break;
case ISN_STOREV:
smsg("%s%4d STOREV v:%s", pfx, current,
get_vim_var_name(iptr->isn_arg.number));
break;
case ISN_STOREAUTO:
smsg("%s%4d STOREAUTO %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_STOREG:
smsg("%s%4d STOREG %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_STOREB:
smsg("%s%4d STOREB %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_STOREW:
smsg("%s%4d STOREW %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_STORET:
smsg("%s%4d STORET %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_STORES:
case ISN_STOREEXPORT:
{
scriptitem_T *si = SCRIPT_ITEM(
iptr->isn_arg.loadstore.ls_sid);
smsg("%s%4d %s %s in %s", pfx, current,
iptr->isn_type == ISN_STORES
? "STORES" : "STOREEXPORT",
iptr->isn_arg.loadstore.ls_name, si->sn_name);
}
break;
case ISN_STORESCRIPT:
{
scriptref_T *sref = iptr->isn_arg.script.scriptref;
scriptitem_T *si = SCRIPT_ITEM(sref->sref_sid);
svar_T *sv;
sctx_T save_sctx = current_sctx;
current_sctx = script_ctx;
sv = get_script_svar(sref, -1);
current_sctx = save_sctx;
if (sv == NULL)
smsg("%s%4d STORESCRIPT [deleted] in %s",
pfx, current, si->sn_name);
else
smsg("%s%4d STORESCRIPT %s-%d in %s", pfx, current,
sv->sv_name,
sref->sref_idx,
si->sn_name);
}
break;
case ISN_STOREOPT:
case ISN_STOREFUNCOPT:
smsg("%s%4d %s &%s", pfx, current,
iptr->isn_type == ISN_STOREOPT ? "STOREOPT" : "STOREFUNCOPT",
iptr->isn_arg.storeopt.so_name);
break;
case ISN_STOREENV:
smsg("%s%4d STOREENV $%s", pfx, current, iptr->isn_arg.string);
break;
case ISN_STOREREG:
smsg("%s%4d STOREREG @%c", pfx, current,
(int)iptr->isn_arg.number);
break;
case ISN_STORENR:
smsg("%s%4d STORE %lld in $%d", pfx, current,
iptr->isn_arg.storenr.stnr_val,
iptr->isn_arg.storenr.stnr_idx);
break;
case ISN_STOREINDEX:
smsg("%s%4d STOREINDEX %s", pfx, current,
vartype_name(iptr->isn_arg.storeindex.si_vartype));
break;
case ISN_STORERANGE:
smsg("%s%4d STORERANGE", pfx, current);
break;
case ISN_LOAD_CLASSMEMBER:
case ISN_STORE_CLASSMEMBER:
{
class_T *cl = iptr->isn_arg.classmember.cm_class;
int idx = iptr->isn_arg.classmember.cm_idx;
ocmember_T *ocm = &cl->class_class_members[idx];
smsg("%s%4d %s CLASSMEMBER %s.%s", pfx, current,
iptr->isn_type == ISN_LOAD_CLASSMEMBER
? "LOAD" : "STORE",
cl->class_name, ocm->ocm_name);
}
break;
// constants
case ISN_PUSHNR:
smsg("%s%4d PUSHNR %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_PUSHBOOL:
case ISN_PUSHSPEC:
smsg("%s%4d PUSH %s", pfx, current,
get_var_special_name(iptr->isn_arg.number));
break;
case ISN_PUSHF:
smsg("%s%4d PUSHF %g", pfx, current, iptr->isn_arg.fnumber);
break;
case ISN_PUSHS:
smsg("%s%4d PUSHS \"%s\"", pfx, current, iptr->isn_arg.string);
break;
case ISN_PUSHBLOB:
{
char_u *r;
char_u numbuf[NUMBUFLEN];
char_u *tofree;
r = blob2string(iptr->isn_arg.blob, &tofree, numbuf);
smsg("%s%4d PUSHBLOB %s", pfx, current, r);
vim_free(tofree);
}
break;
case ISN_PUSHFUNC:
{
char *name = (char *)iptr->isn_arg.string;
smsg("%s%4d PUSHFUNC \"%s\"", pfx, current,
name == NULL ? "[none]" : name);
}
break;
case ISN_PUSHCHANNEL:
#ifdef FEAT_JOB_CHANNEL
smsg("%s%4d PUSHCHANNEL 0", pfx, current);
#endif
break;
case ISN_PUSHJOB:
#ifdef FEAT_JOB_CHANNEL
smsg("%s%4d PUSHJOB \"no process\"", pfx, current);
#endif
break;
case ISN_PUSHOBJ:
smsg("%s%4d PUSHOBJ null", pfx, current);
break;
case ISN_PUSHCLASS:
smsg("%s%4d PUSHCLASS %s", pfx, current,
iptr->isn_arg.classarg == NULL ? "null"
: (char *)iptr->isn_arg.classarg->class_name);
break;
case ISN_PUSHEXC:
smsg("%s%4d PUSH v:exception", pfx, current);
break;
case ISN_AUTOLOAD:
smsg("%s%4d AUTOLOAD %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_UNLET:
smsg("%s%4d UNLET%s %s", pfx, current,
iptr->isn_arg.unlet.ul_forceit ? "!" : "",
iptr->isn_arg.unlet.ul_name);
break;
case ISN_UNLETENV:
smsg("%s%4d UNLETENV%s $%s", pfx, current,
iptr->isn_arg.unlet.ul_forceit ? "!" : "",
iptr->isn_arg.unlet.ul_name);
break;
case ISN_UNLETINDEX:
smsg("%s%4d UNLETINDEX", pfx, current);
break;
case ISN_UNLETRANGE:
smsg("%s%4d UNLETRANGE", pfx, current);
break;
case ISN_LOCKUNLOCK:
smsg("%s%4d LOCKUNLOCK %s", pfx, current, iptr->isn_arg.string);
break;
case ISN_LOCKCONST:
smsg("%s%4d LOCKCONST", pfx, current);
break;
case ISN_NEWLIST:
smsg("%s%4d NEWLIST size %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_NEWTUPLE:
smsg("%s%4d NEWTUPLE size %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_NEWDICT:
smsg("%s%4d NEWDICT size %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_NEWPARTIAL:
smsg("%s%4d NEWPARTIAL", pfx, current);
break;
// function call
case ISN_BCALL:
{
cbfunc_T *cbfunc = &iptr->isn_arg.bfunc;
smsg("%s%4d BCALL %s(argc %d)", pfx, current,
internal_func_name(cbfunc->cbf_idx),
cbfunc->cbf_argcount);
}
break;
case ISN_DCALL:
{
cdfunc_T *cdfunc = &iptr->isn_arg.dfunc;
dfunc_T *df = ((dfunc_T *)def_functions.ga_data)
+ cdfunc->cdf_idx;
smsg("%s%4d DCALL %s(argc %d)", pfx, current,
printable_func_name(df->df_ufunc),
cdfunc->cdf_argcount);
}
break;
case ISN_METHODCALL:
{
cmfunc_T *mfunc = iptr->isn_arg.mfunc;
smsg("%s%4d METHODCALL %s.%s(argc %d)", pfx, current,
mfunc->cmf_itf->class_name,
mfunc->cmf_itf->class_obj_methods[
mfunc->cmf_idx]->uf_name,
mfunc->cmf_argcount);
}
break;
case ISN_UCALL:
{
cufunc_T *cufunc = &iptr->isn_arg.ufunc;
smsg("%s%4d UCALL %s(argc %d)", pfx, current,
cufunc->cuf_name, cufunc->cuf_argcount);
}
break;
case ISN_PCALL:
{
cpfunc_T *cpfunc = &iptr->isn_arg.pfunc;
smsg("%s%4d PCALL%s (argc %d)", pfx, current,
cpfunc->cpf_top ? " top" : "", cpfunc->cpf_argcount);
}
break;
case ISN_PCALL_END:
smsg("%s%4d PCALL end", pfx, current);
break;
case ISN_DEFER:
smsg("%s%4d DEFER %d args", pfx, current,
(int)iptr->isn_arg.defer.defer_argcount);
break;
case ISN_RETURN:
smsg("%s%4d RETURN", pfx, current);
break;
case ISN_RETURN_VOID:
smsg("%s%4d RETURN void", pfx, current);
break;
case ISN_RETURN_OBJECT:
smsg("%s%4d RETURN object", pfx, current);
break;
case ISN_FUNCREF:
{
funcref_T *funcref = &iptr->isn_arg.funcref;
funcref_extra_T *extra = funcref->fr_extra;
char_u *name;
if (extra == NULL || extra->fre_func_name == NULL)
{
dfunc_T *df = ((dfunc_T *)def_functions.ga_data)
+ funcref->fr_dfunc_idx;
name = df->df_ufunc->uf_name;
}
else
name = extra->fre_func_name;
if (extra != NULL && extra->fre_class != NULL)
{
smsg("%s%4d FUNCREF %s.%s", pfx, current,
extra->fre_class->class_name, name);
}
else if (extra == NULL
|| extra->fre_loopvar_info.lvi_depth == 0)
{
smsg("%s%4d FUNCREF %s", pfx, current, name);
}
else
{
char_u *info = printable_loopvarinfo(
&extra->fre_loopvar_info);
smsg("%s%4d FUNCREF %s vars %s", pfx, current,
name, info);
vim_free(info);
}
}
break;
case ISN_NEWFUNC:
{
newfuncarg_T *arg = iptr->isn_arg.newfunc.nf_arg;
if (arg->nfa_loopvar_info.lvi_depth == 0)
smsg("%s%4d NEWFUNC %s %s", pfx, current,
arg->nfa_lambda, arg->nfa_global);
else
{
char_u *info = printable_loopvarinfo(
&arg->nfa_loopvar_info);
smsg("%s%4d NEWFUNC %s %s vars %s", pfx, current,
arg->nfa_lambda, arg->nfa_global, info);
vim_free(info);
}
}
break;
case ISN_DEF:
{
char_u *name = iptr->isn_arg.string;
smsg("%s%4d DEF %s", pfx, current,
name == NULL ? (char_u *)"" : name);
}
break;
case ISN_JUMP:
{
char *when = "?";
switch (iptr->isn_arg.jump.jump_when)
{
case JUMP_ALWAYS:
when = "JUMP";
break;
case JUMP_NEVER:
iemsg("JUMP_NEVER should not be used");
break;
case JUMP_AND_KEEP_IF_TRUE:
when = "JUMP_AND_KEEP_IF_TRUE";
break;
case JUMP_IF_FALSE:
when = "JUMP_IF_FALSE";
break;
case JUMP_WHILE_FALSE:
when = "JUMP_WHILE_FALSE"; // unused
break;
case JUMP_IF_COND_FALSE:
when = "JUMP_IF_COND_FALSE";
break;
case JUMP_IF_COND_TRUE:
when = "JUMP_IF_COND_TRUE";
break;
}
smsg("%s%4d %s -> %d", pfx, current, when,
iptr->isn_arg.jump.jump_where);
}
break;
case ISN_JUMP_IF_ARG_SET:
smsg("%s%4d JUMP_IF_ARG_SET arg[%d] -> %d", pfx, current,
iptr->isn_arg.jumparg.jump_arg_off + STACK_FRAME_SIZE,
iptr->isn_arg.jump.jump_where);
break;
case ISN_JUMP_IF_ARG_NOT_SET:
smsg("%s%4d JUMP_IF_ARG_NOT_SET arg[%d] -> %d", pfx, current,
iptr->isn_arg.jumparg.jump_arg_off + STACK_FRAME_SIZE,
iptr->isn_arg.jump.jump_where);
break;
case ISN_FOR:
{
forloop_T *forloop = &iptr->isn_arg.forloop;
smsg("%s%4d FOR $%d -> %d", pfx, current,
forloop->for_loop_idx, forloop->for_end);
}
break;
case ISN_ENDLOOP:
{
endloop_T *endloop = &iptr->isn_arg.endloop;
smsg("%s%4d ENDLOOP ref $%d save $%d-$%d depth %d",
pfx, current,
endloop->end_funcref_idx,
endloop->end_var_idx,
endloop->end_var_idx + endloop->end_var_count - 1,
endloop->end_depth);
}
break;
case ISN_WHILE:
{
whileloop_T *whileloop = &iptr->isn_arg.whileloop;
smsg("%s%4d WHILE $%d -> %d", pfx, current,
whileloop->while_funcref_idx,
whileloop->while_end);
}
break;
case ISN_TRY:
{
try_T *try = &iptr->isn_arg.tryref;
if (try->try_ref->try_finally == 0)
smsg("%s%4d TRY catch -> %d, endtry -> %d",
pfx, current,
try->try_ref->try_catch,
try->try_ref->try_endtry);
else
smsg("%s%4d TRY catch -> %d, finally -> %d, endtry -> %d",
pfx, current,
try->try_ref->try_catch,
try->try_ref->try_finally,
try->try_ref->try_endtry);
}
break;
case ISN_CATCH:
smsg("%s%4d CATCH", pfx, current);
break;
case ISN_TRYCONT:
{
trycont_T *trycont = &iptr->isn_arg.trycont;
smsg("%s%4d TRY-CONTINUE %d level%s -> %d", pfx, current,
trycont->tct_levels,
trycont->tct_levels == 1 ? "" : "s",
trycont->tct_where);
}
break;
case ISN_FINALLY:
smsg("%s%4d FINALLY", pfx, current);
break;
case ISN_ENDTRY:
smsg("%s%4d ENDTRY", pfx, current);
break;
case ISN_THROW:
smsg("%s%4d THROW", pfx, current);
break;
// expression operations on number
case ISN_OPNR:
case ISN_OPFLOAT:
case ISN_OPANY:
{
char *what;
char *ins;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_MULT: what = "*"; break;
case EXPR_DIV: what = "/"; break;
case EXPR_REM: what = "%"; break;
case EXPR_SUB: what = "-"; break;
case EXPR_ADD: what = "+"; break;
case EXPR_LSHIFT: what = "<<"; break;
case EXPR_RSHIFT: what = ">>"; break;
default: what = "???"; break;
}
switch (iptr->isn_type)
{
case ISN_OPNR: ins = "OPNR"; break;
case ISN_OPFLOAT: ins = "OPFLOAT"; break;
case ISN_OPANY: ins = "OPANY"; break;
default: ins = "???"; break;
}
smsg("%s%4d %s %s", pfx, current, ins, what);
}
break;
case ISN_COMPAREBOOL:
case ISN_COMPARESPECIAL:
case ISN_COMPARENULL:
case ISN_COMPARENR:
case ISN_COMPAREFLOAT:
case ISN_COMPARESTRING:
case ISN_COMPAREBLOB:
case ISN_COMPARELIST:
case ISN_COMPARETUPLE:
case ISN_COMPAREDICT:
case ISN_COMPAREFUNC:
case ISN_COMPAREOBJECT:
case ISN_COMPAREANY:
{
char *p;
char buf[10];
char *type;
switch (iptr->isn_arg.op.op_type)
{
case EXPR_EQUAL: p = "=="; break;
case EXPR_NEQUAL: p = "!="; break;
case EXPR_GREATER: p = ">"; break;
case EXPR_GEQUAL: p = ">="; break;
case EXPR_SMALLER: p = "<"; break;
case EXPR_SEQUAL: p = "<="; break;
case EXPR_MATCH: p = "=~"; break;
case EXPR_IS: p = "is"; break;
case EXPR_ISNOT: p = "isnot"; break;
case EXPR_NOMATCH: p = "!~"; break;
default: p = "???"; break;
}
STRCPY(buf, p);
if (iptr->isn_arg.op.op_ic == TRUE)
strcat(buf, "?");
switch(iptr->isn_type)
{
case ISN_COMPAREBOOL: type = "COMPAREBOOL"; break;
case ISN_COMPARESPECIAL:
type = "COMPARESPECIAL"; break;
case ISN_COMPARENULL: type = "COMPARENULL"; break;
case ISN_COMPARENR: type = "COMPARENR"; break;
case ISN_COMPAREFLOAT: type = "COMPAREFLOAT"; break;
case ISN_COMPARESTRING:
type = "COMPARESTRING"; break;
case ISN_COMPAREBLOB: type = "COMPAREBLOB"; break;
case ISN_COMPARELIST: type = "COMPARELIST"; break;
case ISN_COMPARETUPLE: type = "COMPARETUPLE"; break;
case ISN_COMPAREDICT: type = "COMPAREDICT"; break;
case ISN_COMPAREFUNC: type = "COMPAREFUNC"; break;
case ISN_COMPAREOBJECT:
type = "COMPAREOBJECT"; break;
case ISN_COMPAREANY: type = "COMPAREANY"; break;
default: type = "???"; break;
}
smsg("%s%4d %s %s", pfx, current, type, buf);
}
break;
case ISN_ADDLIST: smsg("%s%4d ADDLIST", pfx, current); break;
case ISN_ADDTUPLE: smsg("%s%4d ADDTUPLE", pfx, current); break;
case ISN_ADDBLOB: smsg("%s%4d ADDBLOB", pfx, current); break;
// expression operations
case ISN_CONCAT:
smsg("%s%4d CONCAT size %lld", pfx, current,
(varnumber_T)(iptr->isn_arg.number));
break;
case ISN_STRINDEX: smsg("%s%4d STRINDEX", pfx, current); break;
case ISN_STRSLICE: smsg("%s%4d STRSLICE", pfx, current); break;
case ISN_BLOBINDEX: smsg("%s%4d BLOBINDEX", pfx, current); break;
case ISN_BLOBSLICE: smsg("%s%4d BLOBSLICE", pfx, current); break;
case ISN_LISTAPPEND: smsg("%s%4d LISTAPPEND", pfx, current); break;
case ISN_BLOBAPPEND: smsg("%s%4d BLOBAPPEND", pfx, current); break;
case ISN_LISTINDEX: smsg("%s%4d LISTINDEX", pfx, current); break;
case ISN_LISTSLICE: smsg("%s%4d LISTSLICE", pfx, current); break;
case ISN_TUPLEINDEX: smsg("%s%4d TUPLEINDEX", pfx, current); break;
case ISN_TUPLESLICE: smsg("%s%4d TUPLESLICE", pfx, current); break;
case ISN_ANYINDEX: smsg("%s%4d ANYINDEX", pfx, current); break;
case ISN_ANYSLICE: smsg("%s%4d ANYSLICE", pfx, current); break;
case ISN_SLICE: smsg("%s%4d SLICE %lld",
pfx, current, iptr->isn_arg.number); break;
case ISN_GETITEM: smsg("%s%4d ITEM %lld%s", pfx, current,
iptr->isn_arg.getitem.gi_index,
iptr->isn_arg.getitem.gi_with_op ?
" with op" : ""); break;
case ISN_MEMBER: smsg("%s%4d MEMBER", pfx, current); break;
case ISN_STRINGMEMBER: smsg("%s%4d MEMBER %s", pfx, current,
iptr->isn_arg.string); break;
case ISN_GET_OBJ_MEMBER: smsg("%s%4d OBJ_MEMBER %d", pfx, current,
(int)iptr->isn_arg.classmember.cm_idx);
break;
case ISN_GET_ITF_MEMBER: smsg("%s%4d ITF_MEMBER %d on %s",
pfx, current,
(int)iptr->isn_arg.classmember.cm_idx,
iptr->isn_arg.classmember.cm_class->class_name);
break;
case ISN_STORE_THIS: smsg("%s%4d STORE_THIS %d", pfx, current,
(int)iptr->isn_arg.number); break;
case ISN_CLEARDICT: smsg("%s%4d CLEARDICT", pfx, current); break;
case ISN_USEDICT: smsg("%s%4d USEDICT", pfx, current); break;
case ISN_NEGATENR: smsg("%s%4d NEGATENR", pfx, current); break;
case ISN_CHECKTYPE:
{
checktype_T *ct = &iptr->isn_arg.type;
char *tofree = NULL;
char *typename;
if (ct->ct_type->tt_type == VAR_FLOAT
&& (ct->ct_type->tt_flags & TTFLAG_NUMBER_OK))
typename = "float|number";
else
typename = type_name(ct->ct_type, &tofree);
if (ct->ct_arg_idx == 0)
smsg("%s%4d CHECKTYPE %s stack[%d]", pfx, current,
typename,
(int)ct->ct_off);
else
smsg("%s%4d CHECKTYPE %s stack[%d] %s %d",
pfx, current,
typename,
(int)ct->ct_off,
ct->ct_is_var ? "var": "arg",
(int)ct->ct_arg_idx);
vim_free(tofree);
break;
}
case ISN_CHECKLEN: smsg("%s%4d CHECKLEN %s%d", pfx, current,
iptr->isn_arg.checklen.cl_more_OK ? ">= " : "",
iptr->isn_arg.checklen.cl_min_len);
break;
case ISN_SETTYPE:
{
char *tofree;
smsg("%s%4d SETTYPE %s", pfx, current,
type_name(iptr->isn_arg.type.ct_type, &tofree));
vim_free(tofree);
break;
}
case ISN_COND2BOOL: smsg("%s%4d COND2BOOL", pfx, current); break;
case ISN_2BOOL: if (iptr->isn_arg.tobool.invert)
smsg("%s%4d INVERT %d (!val)", pfx, current,
iptr->isn_arg.tobool.offset);
else
smsg("%s%4d 2BOOL %d (!!val)", pfx, current,
iptr->isn_arg.tobool.offset);
break;
case ISN_2STRING: smsg("%s%4d 2STRING stack[%lld]", pfx, current,
(varnumber_T)(iptr->isn_arg.tostring.offset));
break;
case ISN_2STRING_ANY: smsg("%s%4d 2STRING_ANY stack[%lld]",
pfx, current,
(varnumber_T)(iptr->isn_arg.tostring.offset));
break;
case ISN_RANGE: smsg("%s%4d RANGE %s", pfx, current,
iptr->isn_arg.string);
break;
case ISN_PUT:
if (iptr->isn_arg.put.put_lnum == LNUM_VARIABLE_RANGE_ABOVE)
smsg("%s%4d PUT %c above range",
pfx, current, iptr->isn_arg.put.put_regname);
else if (iptr->isn_arg.put.put_lnum == LNUM_VARIABLE_RANGE)
smsg("%s%4d PUT %c range",
pfx, current, iptr->isn_arg.put.put_regname);
else
smsg("%s%4d PUT %c %ld", pfx, current,
iptr->isn_arg.put.put_regname,
(long)iptr->isn_arg.put.put_lnum);
break;
case ISN_IPUT:
if (iptr->isn_arg.put.put_lnum == LNUM_VARIABLE_RANGE_ABOVE)
smsg("%s%4d IPUT %c above range",
pfx, current, iptr->isn_arg.put.put_regname);
else if (iptr->isn_arg.put.put_lnum == LNUM_VARIABLE_RANGE)
smsg("%s%4d IPUT %c range",
pfx, current, iptr->isn_arg.put.put_regname);
else
smsg("%s%4d IPUT %c %ld", pfx, current,
iptr->isn_arg.put.put_regname,
(long)iptr->isn_arg.put.put_lnum);
break;
case ISN_CMDMOD:
{
char_u *buf;
size_t len = produce_cmdmods(
NULL, iptr->isn_arg.cmdmod.cf_cmdmod, FALSE);
buf = alloc(len + 1);
if (likely(buf != NULL))
{
(void)produce_cmdmods(
buf, iptr->isn_arg.cmdmod.cf_cmdmod, FALSE);
smsg("%s%4d CMDMOD %s", pfx, current, buf);
vim_free(buf);
}
break;
}
case ISN_CMDMOD_REV: smsg("%s%4d CMDMOD_REV", pfx, current); break;
case ISN_PROF_START:
smsg("%s%4d PROFILE START line %d", pfx, current,
iptr->isn_lnum);
break;
case ISN_PROF_END:
smsg("%s%4d PROFILE END", pfx, current);
break;
case ISN_DEBUG:
smsg("%s%4d DEBUG line %d-%d varcount %lld", pfx, current,
iptr->isn_arg.debug.dbg_break_lnum + 1,
iptr->isn_lnum,
iptr->isn_arg.debug.dbg_var_names_len);
break;
case ISN_UNPACK: smsg("%s%4d UNPACK %d%s", pfx, current,
iptr->isn_arg.unpack.unp_count,
iptr->isn_arg.unpack.unp_semicolon ? " semicolon" : "");
break;
case ISN_SHUFFLE: smsg("%s%4d SHUFFLE %d up %d", pfx, current,
iptr->isn_arg.shuffle.shfl_item,
iptr->isn_arg.shuffle.shfl_up);
break;
case ISN_DROP: smsg("%s%4d DROP", pfx, current); break;
case ISN_SCRIPTCTX_SET:
{
int sid = iptr->isn_arg.setsctx.sc_sid;
scriptitem_T *si = SCRIPT_ITEM(sid);
smsg("%s%4d SCRIPTCTX_SET %s", pfx, current, si->sn_name);
script_ctx = iptr->isn_arg.setsctx;
}
break;
case ISN_FINISH: // End of list of instructions for ISN_SUBSTITUTE.
return;
}
out_flush(); // output one line at a time
ui_breakcheck();
if (got_int)
break;
}
}
/*
* Handle command line completion for the :disassemble command.
*/
void
set_context_in_disassemble_cmd(expand_T *xp, char_u *arg)
{
char_u *p;
// Default: expand user functions, "debug" and "profile"
xp->xp_context = EXPAND_DISASSEMBLE;
xp->xp_pattern = arg;
// first argument already typed: only user function names
if (*arg != NUL && *(p = skiptowhite(arg)) != NUL)
{
xp->xp_context = EXPAND_USER_FUNC;
xp->xp_pattern = skipwhite(p);
}
}
/*
* Function given to ExpandGeneric() to obtain the list of :disassemble
* arguments.
*/
char_u *
get_disassemble_argument(expand_T *xp, int idx)
{
if (idx == 0)
return (char_u *)"debug";
if (idx == 1)
return (char_u *)"profile";
return get_user_func_name(xp, idx - 2);
}
/*
* ":disassemble".
* We don't really need this at runtime, but we do have tests that require it,
* so always include this.
*/
void
ex_disassemble(exarg_T *eap)
{
char_u *arg = eap->arg;
ufunc_T *ufunc;
dfunc_T *dfunc;
isn_T *instr = NULL; // init to shut up gcc warning
int instr_count = 0; // init to shut up gcc warning
compiletype_T compile_type = CT_NONE;
ufunc = find_func_by_name(arg, &compile_type);
if (ufunc == NULL)
return;
if (func_needs_compiling(ufunc, compile_type)
&& compile_def_function(ufunc, FALSE, compile_type, NULL) == FAIL)
return;
if (ufunc->uf_def_status != UF_COMPILED)
{
semsg(_(e_function_is_not_compiled_str), eap->arg);
return;
}
msg((char *)printable_func_name(ufunc));
dfunc = ((dfunc_T *)def_functions.ga_data) + ufunc->uf_dfunc_idx;
switch (compile_type)
{
case CT_PROFILE:
#ifdef FEAT_PROFILE
instr = dfunc->df_instr_prof;
instr_count = dfunc->df_instr_prof_count;
break;
#endif
// FALLTHROUGH
case CT_NONE:
instr = dfunc->df_instr;
instr_count = dfunc->df_instr_count;
break;
case CT_DEBUG:
instr = dfunc->df_instr_debug;
instr_count = dfunc->df_instr_debug_count;
break;
}
list_instructions("", instr, instr_count, ufunc);
}
/*
* Return TRUE when "tv" is not falsy: non-zero, non-empty string, non-empty
* list, etc. Mostly like what JavaScript does, except that empty list and
* empty dictionary are FALSE.
*/
int
tv2bool(typval_T *tv)
{
switch (tv->v_type)
{
case VAR_NUMBER:
return tv->vval.v_number != 0;
case VAR_FLOAT:
return tv->vval.v_float != 0.0;
case VAR_PARTIAL:
return tv->vval.v_partial != NULL;
case VAR_FUNC:
case VAR_STRING:
return tv->vval.v_string != NULL && *tv->vval.v_string != NUL;
case VAR_LIST:
return tv->vval.v_list != NULL && tv->vval.v_list->lv_len > 0;
case VAR_TUPLE:
return tuple_len(tv->vval.v_tuple) > 0;
case VAR_DICT:
return tv->vval.v_dict != NULL
&& tv->vval.v_dict->dv_hashtab.ht_used > 0;
case VAR_BOOL:
case VAR_SPECIAL:
return tv->vval.v_number == VVAL_TRUE ? TRUE : FALSE;
case VAR_JOB:
#ifdef FEAT_JOB_CHANNEL
return tv->vval.v_job != NULL;
#else
break;
#endif
case VAR_CHANNEL:
#ifdef FEAT_JOB_CHANNEL
return tv->vval.v_channel != NULL;
#else
break;
#endif
case VAR_BLOB:
return tv->vval.v_blob != NULL && tv->vval.v_blob->bv_ga.ga_len > 0;
case VAR_UNKNOWN:
case VAR_ANY:
case VAR_VOID:
case VAR_INSTR:
case VAR_CLASS:
case VAR_OBJECT:
case VAR_TYPEALIAS:
break;
}
return FALSE;
}
void
emsg_using_string_as(typval_T *tv, int as_number)
{
semsg(_(as_number ? e_using_string_as_number_str
: e_using_string_as_bool_str),
tv->vval.v_string == NULL
? (char_u *)"" : tv->vval.v_string);
}
/*
* If "tv" is a string give an error and return FAIL.
*/
int
check_not_string(typval_T *tv)
{
if (tv->v_type == VAR_STRING)
{
emsg_using_string_as(tv, TRUE);
clear_tv(tv);
return FAIL;
}
return OK;
}
#endif // FEAT_EVAL
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