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[SyntaxParse] Fix ASAN issue

Browse Source 
rdar://problem/55711699
rdar://problem/55711787
rdar://problem/55711952
This commit is contained in:
Rintaro Ishizaki
2019-09-25 21:27:44 -07:00
parent 7189c09720
commit d9eba19b74
2 changed files with 16 additions and 8 deletions
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17
lib/Parse/ParseGeneric.cpp
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@@ -73,12 +73,17 @@ Parser::parseGenericParameterClauseSyntax() {
// Parse attributes.
// TODO: Implement syntax attribute parsing.
DeclAttributes attrsAST;
parseDeclAttributeList(attrsAST);
auto attrs = SyntaxContext->popIf<ParsedAttributeListSyntax>();
if (attrs) {
paramBuilder.useAttributes(std::move(*attrs));
Generator.addDeclAttributes(attrsAST, attrsAST.getStartLoc());
if (Tok.is(tok::at_sign)) {
SyntaxParsingContext TmpCtxt(SyntaxContext);
TmpCtxt.setTransparent();
DeclAttributes attrsAST;
parseDeclAttributeList(attrsAST);
if (!attrsAST.isEmpty())
Generator.addDeclAttributes(attrsAST, attrsAST.getStartLoc());
auto attrs = SyntaxContext->popIf<ParsedAttributeListSyntax>();
if (attrs)
paramBuilder.useAttributes(std::move(*attrs));
}
// Parse the name of the parameter.