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for loop: add ability to get pointer to elem var

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see #51
This commit is contained in:
Andrew Kelley
2016-04-20 11:58:01 -07:00
parent a25307c0a1
commit 6acc354957
7 changed files with 46 additions and 6 deletions
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9
src/parser.cpp
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@@ -1932,7 +1932,7 @@ static AstNode *ast_parse_symbol(ParseContext *pc, int *token_index) {
}
/*
ForExpression = "for" "(" Expression ")" option("|" "Symbol" option("," "Symbol") "|") Expression
ForExpression = "for" "(" Expression ")" option("|" option("*") "Symbol" option("," "Symbol") "|") Expression
*/
static AstNode *ast_parse_for_expr(ParseContext *pc, int *token_index, bool mandatory) {
Token *token = &pc->tokens->at(*token_index);
@@ -1955,6 +1955,13 @@ static AstNode *ast_parse_for_expr(ParseContext *pc, int *token_index, bool mand
Token *maybe_bar = &pc->tokens->at(*token_index);
if (maybe_bar->id == TokenIdBinOr) {
*token_index += 1;
Token *maybe_star = &pc->tokens->at(*token_index);
if (maybe_star->id == TokenIdStar) {
*token_index += 1;
node->data.for_expr.elem_is_ptr = true;
}
node->data.for_expr.elem_node = ast_parse_symbol(pc, token_index);
Token *maybe_comma = &pc->tokens->at(*token_index);