SpiderMonkey was updated to mozjs24. If you want to build elinks
with ecmascript support, you must compile using g++ with -fpermissive .
There is a lot of warnings.
There are some memleaks in ecmascript code, especially related to JSAutoCompartment.
I don't know yet, where and how to free it.
Debian does not support mozjs24, so I'm going to gradually update SpiderMonkey version.
Weak points:
- alignof
- js problems
Todo:
- make js work with C++ and mozjs-17
- then mozjs-24
- then mozjs-52
- then mozjs-60
- decrease number of warnings
If the parent parameter of get_dom_node_list_index referred to a node
that did not have children, then get_dom_node_list called by it could
return the address of a null pointer, and get_dom_node_list_index would
then pass that null pointer to get_dom_node_list_pos, which would crash.
That would be the same kind of crash as the one in get_dom_node_child.
It never happened in practice though: because all calls are in the form
get_dom_node_list_index(node->parent, node), the list must contain at
least the given node, and the pointer cannot be null. The documentation
of get_dom_node_list_index allows arbitrary nodes as arguments however,
so it's best to add a check.
struct dom_node contains a union that contains various structs that
have members of type struct dom_node * in them.
get_dom_node_list_by_type returns the address (struct dom_node **) of
one of those members, or NULL. However the member itself can also be
NULL if no nodes have been added to the list and the list has thus not
yet been allocated. (add_to_dom_node_list lazily allocates the lists.)
get_dom_node_child did not expect a null pointer there and crashed, as
shown in bug 1071. Fix by adding a check so that it treats a NULL list
as an empty list.
In bug 1067, dom_rss_pop_document() freed a node with done_dom_node()
even though call_dom_node_callbacks() was still using that node. This
made call_dom_node_callbacks() read a function pointer from beyond the
end of an array and call that. Add assertions to detect out-of-range
node types, and comments to warn about the bug.
A style-sheet containing the string "url( )" with 1 or more characters of
whitespace in between the parentheses triggered an assertion failure in
scan_css_token.
scan_css_token would find the left parenthesis, find the right parenthesis,
and then scan forwards from the left parenthesis for a non-whitespace
character to find the start of the URL and backwards from the right
parenthesis to find the end of the URL. If there were whitespace and
nothing else, the start would be past the end, the routine would compute a
negative length for the URL, and then the routine would trigger an
assertion failure. Now the routine simply enforces a lower bound of length
0 for the URL.
Add #include directives to fix these errors:
[CC] src/intl/gettext/l10nflist.o
cc1: warnings being treated as errors
.../src/intl/gettext/l10nflist.c: In function ‘_nl_normalize_codeset’:
.../src/intl/gettext/l10nflist.c:352: error: implicit declaration of function ‘c_tolower’
[CC] src/dom/css/scanner.o
cc1: warnings being treated as errors
In file included from .../src/dom/scanner.h:4,
from .../src/dom/css/scanner.h:4,
from .../src/dom/css/scanner.c:12:
.../src/dom/string.h: In function ‘dom_string_casecmp’:
.../src/dom/string.h:34: error: implicit declaration of function ‘c_strncasecmp’
