motiejus/zig
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introduce the enum literal type

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see #683
This commit is contained in:
Andrew Kelley
2019-03-24 00:44:18 -04:00
parent 64dddd7afe
commit d0551db5cd
16 changed files with 195 additions and 3 deletions
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19
src/parser.cpp
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@@ -81,6 +81,7 @@ static AstNode *ast_parse_for_type_expr(ParseContext *pc);
static AstNode *ast_parse_while_type_expr(ParseContext *pc);
static AstNode *ast_parse_switch_expr(ParseContext *pc);
static AstNode *ast_parse_asm_expr(ParseContext *pc);
static AstNode *ast_parse_enum_lit(ParseContext *pc);
static AstNode *ast_parse_asm_output(ParseContext *pc);
static AsmOutput *ast_parse_asm_output_item(ParseContext *pc);
static AstNode *ast_parse_asm_input(ParseContext *pc);
@@ -1161,6 +1162,10 @@ static AstNode *ast_parse_prefix_expr(ParseContext *pc) {
// / Block
// / CurlySuffixExpr
static AstNode *ast_parse_primary_expr(ParseContext *pc) {
AstNode *enum_lit = ast_parse_enum_lit(pc);
if (enum_lit != nullptr)
return enum_lit;
AstNode *asm_expr = ast_parse_asm_expr(pc);
if (asm_expr != nullptr)
return asm_expr;
@@ -1831,6 +1836,18 @@ static AstNode *ast_parse_asm_expr(ParseContext *pc) {
return res;
}
static AstNode *ast_parse_enum_lit(ParseContext *pc) {
Token *period = eat_token_if(pc, TokenIdDot);
if (period == nullptr)
return nullptr;
Token *identifier = expect_token(pc, TokenIdSymbol);
AstNode *res = ast_create_node(pc, NodeTypeEnumLiteral, period);
res->data.enum_literal.period = period;
res->data.enum_literal.identifier = identifier;
return res;
}
// AsmOutput <- COLON AsmOutputList AsmInput?
static AstNode *ast_parse_asm_output(ParseContext *pc) {
if (eat_token_if(pc, TokenIdColon) == nullptr)
@@ -3000,5 +3017,7 @@ void ast_visit_node_children(AstNode *node, void (*visit)(AstNode **, void *cont
case NodeTypeSuspend:
visit_field(&node->data.suspend.block, visit, context);
break;
case NodeTypeEnumLiteral:
break;
}
}