Added a new memberfor Parser, to be used soon
for doing delayed parsing of c++ method defined in
objc class implementations.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159792 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Parse/Parser.h b/include/clang/Parse/Parser.h
index 66e8662..b9414a4 100644
--- a/include/clang/Parse/Parser.h
+++ b/include/clang/Parse/Parser.h
@@ -1045,6 +1045,7 @@
ParsingDeclSpec *DS = 0);
bool isDeclarationAfterDeclarator();
bool isStartOfFunctionDefinition(const ParsingDeclarator &Declarator);
+ bool isStartOfDelayParsedFunctionDefinition(const ParsingDeclarator &Declarator);
DeclGroupPtrTy ParseDeclarationOrFunctionDefinition(
ParsedAttributesWithRange &attrs,
ParsingDeclSpec *DS = 0,
diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index 4cc5fde..0703133 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -797,6 +797,27 @@
Tok.is(tok::kw_try); // X() try { ... }
}
+/// \brief Determine whether the current token, if it occurs after a
+/// a function declarator, indicates the start of a function definition
+/// inside an objective-C class implementation and thus can be delay parsed.
+bool Parser::isStartOfDelayParsedFunctionDefinition(
+ const ParsingDeclarator &Declarator) {
+ if (!CurParsedObjCImpl ||
+ !Declarator.isFunctionDeclarator())
+ return false;
+ if (Tok.is(tok::l_brace)) // int X() {}
+ return true;
+
+ // Handle K&R C argument lists: int X(f) int f; {}
+ if (!getLangOpts().CPlusPlus &&
+ Declarator.getFunctionTypeInfo().isKNRPrototype())
+ return isDeclarationSpecifier();
+
+ return getLangOpts().CPlusPlus &&
+ (Tok.is(tok::colon) || // X() : Base() {} (used for ctors)
+ Tok.is(tok::kw_try)); // X() try { ... }
+}
+
/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or
/// a declaration. We can't tell which we have until we read up to the
/// compound-statement in function-definition. TemplateParams, if
