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Prevent a heap pointer from living on the stack longer than we need.

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Scott Shawcroft 2018-04-09 15:57:16 -07:00 committed by Dan Halbert
parent eb7d0e317a
commit 3b511e503a
1 changed files with 2 additions and 0 deletions
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lib/utils/pyexec.c
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@ -90,6 +90,8 @@ STATIC int parse_compile_execute(const void *source, mp_parse_input_kind_t input
qstr source_name = lex->source_name; qstr source_name = lex->source_name;
mp_parse_tree_t parse_tree = mp_parse(lex, input_kind); mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, exec_flags & EXEC_FLAG_IS_REPL); module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, exec_flags & EXEC_FLAG_IS_REPL);
// Clear the parse tree because it has a heap pointer we don't need anymore.
*((uint32_t volatile*) &parse_tree.chunk) = 0;
#else #else
mp_raise_msg(&mp_type_RuntimeError, "script compilation not supported"); mp_raise_msg(&mp_type_RuntimeError, "script compilation not supported");
#endif #endif