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parse async fn definitions

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See #727
This commit is contained in:
Andrew Kelley
2018-02-20 00:31:52 -05:00
parent 3d58d7232a
commit a06f3c74fd
7 changed files with 53 additions and 13 deletions
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6
src/parser.cpp
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@@ -2333,7 +2333,7 @@ static AstNode *ast_parse_block(ParseContext *pc, size_t *token_index, bool mand
}
/*
FnProto = option("nakedcc" | "stdcallcc" | "extern") "fn" option(Symbol) ParamDeclList option("align" "(" Expression ")") option("section" "(" Expression ")") option("!") TypeExpr
FnProto = option("nakedcc" | "stdcallcc" | "extern" | "async") "fn" option(Symbol) ParamDeclList option("align" "(" Expression ")") option("section" "(" Expression ")") option("!") TypeExpr
*/
static AstNode *ast_parse_fn_proto(ParseContext *pc, size_t *token_index, bool mandatory, VisibMod visib_mod) {
Token *first_token = &pc->tokens->at(*token_index);
@@ -2345,6 +2345,10 @@ static AstNode *ast_parse_fn_proto(ParseContext *pc, size_t *token_index, bool m
*token_index += 1;
fn_token = ast_eat_token(pc, token_index, TokenIdKeywordFn);
cc = CallingConventionNaked;
} else if (first_token->id == TokenIdKeywordAsync) {
*token_index += 1;
fn_token = ast_eat_token(pc, token_index, TokenIdKeywordFn);
cc = CallingConventionAsync;
} else if (first_token->id == TokenIdKeywordStdcallCC) {
*token_index += 1;
fn_token = ast_eat_token(pc, token_index, TokenIdKeywordFn);