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Keep track of the beginning of a block

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This commit is contained in:
Wolfgang (Blub) Bumiller 2012-11-30 14:37:23 +01:00
parent eec61af381
commit 321a1fe0d6
1 changed files with 10 additions and 2 deletions
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12
parser.c
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@ -75,6 +75,7 @@ typedef struct {
size_t *_blocklocals;
ast_value **_typedefs;
size_t *_blocktypedefs;
lex_ctx *_block_ctx;
size_t errors;
@ -1680,6 +1681,7 @@ static void parser_enterblock(parser_t *parser)
vec_push(parser->_blocklocals, vec_size(parser->_locals));
vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
vec_push(parser->_block_ctx, parser_ctx(parser));
}
static bool parser_leaveblock(parser_t *parser)
@ -1695,7 +1697,8 @@ static bool parser_leaveblock(parser_t *parser)
util_htdel(vec_last(parser->variables));
vec_pop(parser->variables);
if (!vec_size(parser->_blocklocals)) {
parseerror(parser, "internal error: parser_leaveblock with no block (2)");
parser->errors++;
compile_error(vec_last(parser->_block_ctx), "internal error: parser_leaveblock with no block (2)");
return false;
}
@ -1706,8 +1709,10 @@ static bool parser_leaveblock(parser_t *parser)
ast_value *v = (ast_value*)e;
vec_pop(parser->_locals);
if (ast_istype(e, ast_value) && !v->uses) {
if (parsewarning(parser, WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name))
if (compile_warning(ast_ctx(v), WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name)) {
parser->errors++;
rv = false;
}
}
}
@ -1719,6 +1724,7 @@ static bool parser_leaveblock(parser_t *parser)
util_htdel(vec_last(parser->typedefs));
vec_pop(parser->typedefs);
vec_pop(parser->_block_ctx);
return rv;
}
@ -4364,6 +4370,8 @@ void parser_cleanup()
vec_free(parser->typedefs);
vec_free(parser->_blocktypedefs);
vec_free(parser->_block_ctx);
vec_free(parser->labels);
vec_free(parser->gotos);