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implement continue expression

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closes #6
This commit is contained in:
Andrew Kelley
2015-12-24 15:36:49 -07:00
parent 44ca5e19dc
commit 5943f99510
7 changed files with 55 additions and 11 deletions
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11
src/parser.cpp
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@@ -124,6 +124,8 @@ const char *node_type_str(NodeType node_type) {
return "Goto";
case NodeTypeBreak:
return "Break";
case NodeTypeContinue:
return "Continue";
case NodeTypeAsmExpr:
return "AsmExpr";
case NodeTypeFieldAccessExpr:
@@ -341,6 +343,9 @@ void ast_print(AstNode *node, int indent) {
case NodeTypeBreak:
fprintf(stderr, "%s\n", node_type_str(node->type));
break;
case NodeTypeContinue:
fprintf(stderr, "%s\n", node_type_str(node->type));
break;
case NodeTypeAsmExpr:
fprintf(stderr, "%s\n", node_type_str(node->type));
break;
@@ -1107,7 +1112,7 @@ static AstNode *ast_parse_struct_val_expr(ParseContext *pc, int *token_index) {
}
/*
PrimaryExpression : token(Number) | token(String) | KeywordLiteral | GroupedExpression | Goto | Break | BlockExpression | token(Symbol) | StructValueExpression
PrimaryExpression : token(Number) | token(String) | KeywordLiteral | GroupedExpression | Goto | token(Break) | token(Continue) | BlockExpression | token(Symbol) | StructValueExpression
*/
static AstNode *ast_parse_primary_expr(ParseContext *pc, int *token_index, bool mandatory) {
Token *token = &pc->tokens->at(*token_index);
@@ -1165,6 +1170,10 @@ static AstNode *ast_parse_primary_expr(ParseContext *pc, int *token_index, bool
AstNode *node = ast_create_node(pc, NodeTypeBreak, token);
*token_index += 1;
return node;
} else if (token->id == TokenIdKeywordContinue) {
AstNode *node = ast_create_node(pc, NodeTypeContinue, token);
*token_index += 1;
return node;
}
AstNode *grouped_expr_node = ast_parse_grouped_expr(pc, token_index, false);