ObjectiveC - Introducing objc_bridge_related attribute
which specifies couple of (optional) method selectors
for bridging a CFobject to or from an ObjectiveC
object. This is wip. // rdsr://15499111
llvm-svn: 196408
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index 9449426..2c93def 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -259,6 +259,12 @@
ParseAvailabilityAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc);
return;
}
+
+ if (AttrKind == AttributeList::AT_ObjCBridgeRelated) {
+ ParseObjCBridgeRelatedAttribute(*AttrName, AttrNameLoc, Attrs, EndLoc);
+ return;
+ }
+
// Thread safety attributes are parsed in an unevaluated context.
// FIXME: Share the bulk of the parsing code here and just pull out
// the unevaluated context.
@@ -959,6 +965,90 @@
AttributeList::AS_GNU);
}
+/// \brief Parse the contents of the "objc_bridge_related" attribute.
+/// objc_bridge_related '(' related_class ',' opt-class_method ',' opt-instance_method ')'
+/// related_class:
+/// Identifier
+///
+/// opt-class_method:
+/// Identifier: | <empty>
+///
+/// opt-instance_method:
+/// Identifier | <empty>
+///
+void Parser::ParseObjCBridgeRelatedAttribute(IdentifierInfo &ObjCBridgeRelated,
+ SourceLocation ObjCBridgeRelatedLoc,
+ ParsedAttributes &attrs,
+ SourceLocation *endLoc) {
+ // Opening '('.
+ BalancedDelimiterTracker T(*this, tok::l_paren);
+ if (T.consumeOpen()) {
+ Diag(Tok, diag::err_expected_lparen);
+ return;
+ }
+
+ // Parse the related class name.
+ if (Tok.isNot(tok::identifier)) {
+ Diag(Tok, diag::err_objcbridge_related_expected_related_class);
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return;
+ }
+ IdentifierLoc *RelatedClass = ParseIdentifierLoc();
+ if (Tok.isNot(tok::comma)) {
+ Diag(Tok, diag::err_expected_comma);
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return;
+ }
+ ConsumeToken();
+
+ // Parse optional class method name.
+ IdentifierLoc *ClassMethod = 0;
+ if (Tok.is(tok::identifier)) {
+ ClassMethod = ParseIdentifierLoc();
+ if (Tok.isNot(tok::colon)) {
+ Diag(Tok, diag::err_objcbridge_related_selector_name);
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return;
+ }
+ ConsumeToken();
+ }
+ if (Tok.isNot(tok::comma)) {
+ if (Tok.is(tok::colon))
+ Diag(Tok, diag::err_objcbridge_related_selector_name);
+ else
+ Diag(Tok, diag::err_expected_comma);
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return;
+ }
+ ConsumeToken();
+
+ // Parse optional instance method name.
+ IdentifierLoc *InstanceMethod = 0;
+ if (Tok.is(tok::identifier))
+ InstanceMethod = ParseIdentifierLoc();
+ else if (Tok.isNot(tok::r_paren)) {
+ Diag(Tok, diag::err_expected_rparen);
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return;
+ }
+
+ // Closing ')'.
+ if (T.consumeClose())
+ return;
+
+ if (endLoc)
+ *endLoc = T.getCloseLocation();
+
+ // Record this attribute
+ attrs.addNew(&ObjCBridgeRelated,
+ SourceRange(ObjCBridgeRelatedLoc, T.getCloseLocation()),
+ 0, ObjCBridgeRelatedLoc,
+ RelatedClass,
+ ClassMethod,
+ InstanceMethod,
+ AttributeList::AS_GNU);
+
+}
// Late Parsed Attributes:
// See other examples of late parsing in lib/Parse/ParseCXXInlineMethods