motiejus/zig
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add this keyword refers to thing in immediate scope

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See #169
This commit is contained in:
Andrew Kelley
2016-09-26 23:47:30 -04:00
parent f4d7c91363
commit 183976b242
16 changed files with 167 additions and 16 deletions
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12
src/parser.cpp
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@@ -620,7 +620,7 @@ static AstNode *ast_parse_asm_expr(ParseContext *pc, size_t *token_index, bool m
/*
PrimaryExpression = "Number" | "String" | "CharLiteral" | KeywordLiteral | GroupedExpression | GotoExpression | BlockExpression | "Symbol" | ("@" "Symbol" FnCallExpression) | ArrayType | FnProto | AsmExpression | ("error" "." "Symbol")
KeywordLiteral = "true" | "false" | "null" | "break" | "continue" | "undefined" | "zeroes" | "error" | "type"
KeywordLiteral = "true" | "false" | "null" | "break" | "continue" | "undefined" | "zeroes" | "error" | "type" | "this"
*/
static AstNode *ast_parse_primary_expr(ParseContext *pc, size_t *token_index, bool mandatory) {
Token *token = &pc->tokens->at(*token_index);
@@ -672,6 +672,10 @@ static AstNode *ast_parse_primary_expr(ParseContext *pc, size_t *token_index, bo
AstNode *node = ast_create_node(pc, NodeTypeZeroesLiteral, token);
*token_index += 1;
return node;
} else if (token->id == TokenIdKeywordThis) {
AstNode *node = ast_create_node(pc, NodeTypeThisLiteral, token);
*token_index += 1;
return node;
} else if (token->id == TokenIdKeywordType) {
AstNode *node = ast_create_node(pc, NodeTypeTypeLiteral, token);
*token_index += 1;
@@ -2560,6 +2564,9 @@ void ast_visit_node_children(AstNode *node, void (*visit)(AstNode **, void *cont
case NodeTypeZeroesLiteral:
// none
break;
case NodeTypeThisLiteral:
// none
break;
case NodeTypeIfBoolExpr:
visit_field(&node->data.if_bool_expr.condition, visit, context);
visit_field(&node->data.if_bool_expr.then_block, visit, context);
@@ -2840,6 +2847,9 @@ AstNode *ast_clone_subtree_special(AstNode *old_node, uint32_t *next_node_index,
case NodeTypeZeroesLiteral:
// none
break;
case NodeTypeThisLiteral:
// none
break;
case NodeTypeIfBoolExpr:
clone_subtree_field(&new_node->data.if_bool_expr.condition, old_node->data.if_bool_expr.condition, next_node_index);
clone_subtree_field(&new_node->data.if_bool_expr.then_block, old_node->data.if_bool_expr.then_block, next_node_index);