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patch 9.1.1577: Vim9: no generic support yet

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Problem:  Vim9: no generic support yet
Solution: Add support for generic functions, funcrefs and object/class
          methods (Yegappan Lakshmanan).

closes: #17313

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Yegappan Lakshmanan
2025-07-21 21:36:08 +02:00
committed by Christian Brabandt
parent b486ed8266
commit 3416cee36f
35 changed files with 5905 additions and 161 deletions
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35
src/structs.h
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@@ -74,6 +74,8 @@ typedef struct dictvar_S dict_T;
typedef struct partial_S partial_T;
typedef struct blobvar_S blob_T;
typedef struct tuplevar_S tuple_T;
typedef struct generictype_S generic_T;
typedef struct gfargs_tab_S gfargs_tab_T;
typedef struct window_S win_T;
typedef struct wininfo_S wininfo_T;
@@ -1543,6 +1545,10 @@ typedef struct {
#define TTFLAG_STATIC 0x10 // one of the static types, e.g. t_any
#define TTFLAG_CONST 0x20 // cannot be changed
#define TTFLAG_SUPER 0x40 // object from "super".
#define TTFLAG_GENERIC 0x80 // generic type
#define IS_GENERIC_TYPE(type) \
((type->tt_flags & TTFLAG_GENERIC) == TTFLAG_GENERIC)
typedef enum {
VIM_ACCESS_PRIVATE, // read/write only inside the class
@@ -1840,6 +1846,25 @@ struct tuplevar_S
char tv_lock; // zero, VAR_LOCKED, VAR_FIXED
};
/*
* Structure to hold a generic type information
*/
struct generictype_S
{
type_T *gt_type; // generic or concrete type
char_u *gt_name; // type name
};
/*
* Generic function args table
*/
struct gfargs_tab_S
{
garray_T gfat_args;
garray_T gfat_param_types;
garray_T gfat_arg_types;
};
typedef int (*cfunc_T)(int argcount, typval_T *argvars, typval_T *rettv, void *state);
typedef void (*cfunc_free_T)(void *state);
@@ -1926,6 +1951,13 @@ struct ufunc_S
void *uf_cb_state; // state of uf_cb
# endif
// for generic functions
int uf_generic_argcount;// type argument count
generic_T *uf_generic_args; // generic types
type_T *uf_generic_param_types; // list of allocated generic types
garray_T uf_generic_arg_types; // list of allocated type arguments
hashtab_T uf_generic_functab; // generic function table
garray_T uf_lines; // function lines
int uf_debug_tick; // when last checked for a breakpoint in this
@@ -1987,6 +2019,7 @@ struct ufunc_S
#define FC_OBJECT 0x4000 // object method
#define FC_NEW 0x8000 // constructor
#define FC_ABSTRACT 0x10000 // abstract method
#define FC_GENERIC 0x20000 // generic function
// Is "ufunc" an object method?
#define IS_OBJECT_METHOD(ufunc) ((ufunc->uf_flags & FC_OBJECT) == FC_OBJECT)
@@ -1994,6 +2027,7 @@ struct ufunc_S
#define IS_CONSTRUCTOR_METHOD(ufunc) ((ufunc->uf_flags & FC_NEW) == FC_NEW)
// Is "ufunc" an abstract class method?
#define IS_ABSTRACT_METHOD(ufunc) ((ufunc->uf_flags & FC_ABSTRACT) == FC_ABSTRACT)
#define IS_GENERIC_FUNC(ufunc) (((ufunc)->uf_flags & FC_GENERIC) == FC_GENERIC)
#define MAX_FUNC_ARGS 20 // maximum number of function arguments
#define VAR_SHORT_LEN 20 // short variable name length
@@ -2323,6 +2357,7 @@ typedef struct {
type_T *fe_check_type; // type from funcref or NULL
int fe_found_var; // if the function is not found then give an
// error that a variable is not callable.
cctx_T *fe_cctx; // when compiling a :def function
} funcexe_T;
/*