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fix bug 197, 198, and 199 properly

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This commit is contained in:
Dale Weiler 2021-04-06 14:47:35 -04:00
parent 47475bb455
commit 1e8ce1733b
1 changed files with 35 additions and 30 deletions
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61
parser.cpp
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@ -18,9 +18,8 @@ static void parser_addglobal(parser_t *parser, const char *name, ast_expression
static void parser_addglobal(parser_t *parser, const std::string &name, ast_expression *e);
static bool parse_typedef(parser_t *parser);
static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring);
static ast_block* parse_block(parser_t *parser);
static bool parse_block_into(parser_t *parser, ast_block *block);
static bool parse_statement_or_block(parser_t *parser, ast_block* parent_block, ast_expression **out);
static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
@ -2162,7 +2161,7 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
ast_unref(cond);
return false;
}
if (!parse_statement_or_block(parser, block, &ontrue)) {
if (!parse_statement_or_block(parser, &ontrue)) {
ast_unref(cond);
return false;
}
@ -2177,7 +2176,7 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out)
ast_unref(cond);
return false;
}
if (!parse_statement_or_block(parser, block, &onfalse)) {
if (!parse_statement_or_block(parser, &onfalse)) {
delete ontrue;
ast_unref(cond);
return false;
@ -2285,7 +2284,7 @@ static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression **
ast_unref(cond);
return false;
}
if (!parse_statement_or_block(parser, block, &ontrue)) {
if (!parse_statement_or_block(parser, &ontrue)) {
ast_unref(cond);
return false;
}
@ -2360,7 +2359,7 @@ static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression
(void)block; /* not touching */
if (!parse_statement_or_block(parser, block, &ontrue))
if (!parse_statement_or_block(parser, &ontrue))
return false;
/* expect the "while" */
@ -2561,7 +2560,7 @@ static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **ou
parseerror(parser, "expected for-loop body");
goto onerr;
}
if (!parse_statement_or_block(parser, block, &ontrue))
if (!parse_statement_or_block(parser, &ontrue))
goto onerr;
if (cond) {
@ -3550,12 +3549,7 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression *
}
else if (parser->tok == '{')
{
ast_block *inner;
inner = parse_block(parser);
if (!inner)
return false;
*out = inner;
return true;
return parse_statement_or_block(parser, out);
}
else if (parser->tok == ':')
{
@ -3792,26 +3786,37 @@ cleanup:
return retval && !!block;
}
static ast_block* parse_block(parser_t *parser)
static bool parse_statement_or_block(parser_t *parser, ast_expression **out)
{
ast_block *block;
block = new ast_block(parser_ctx(parser));
if (!block)
return nullptr;
if (!parse_block_into(parser, block)) {
delete block;
return nullptr;
bool result = true;
std::unique_ptr<ast_block> block(new ast_block(parser_ctx(parser)));
if (parser->tok == '{') {
if (!parse_block_into(parser, block.get())) {
return false;
}
return block;
} else {
parser_enterblock(parser);
ast_expression* expression = nullptr;
if (!parse_statement(parser, block.get(), &expression, false)) {
result = false;
}
static bool parse_statement_or_block(parser_t *parser, ast_block* parent_block, ast_expression **out)
{
if (parser->tok == '{') {
*out = parse_block(parser);
return !!*out;
if (expression && !block->addExpr(expression)) {
result = false;
}
return parse_statement(parser, parent_block, out, false);
if (!parser_leaveblock(parser)) {
return false;
}
}
if (result) {
*out = block.release();
return true;
}
return false;
}
static bool create_vector_members(ast_value *var, ast_member **me)