[ASTGen] Fix NamedOpaqueReturnTypeRepr

Generic parameter list was missing

Author: rintaro

include/swift/AST/ASTBridging.h

@@ -2732,10 +2732,11 @@ BridgedTupleTypeRepr BridgedTupleTypeRepr_createParsed(
     BridgedASTContext cContext, BridgedArrayRef elements,
     BridgedSourceLoc cLParenLoc, BridgedSourceLoc cRParenLoc);
 
-SWIFT_NAME("BridgedNamedOpaqueReturnTypeRepr.createParsed(_:base:)")
-BridgedNamedOpaqueReturnTypeRepr
-BridgedNamedOpaqueReturnTypeRepr_createParsed(BridgedASTContext cContext,
-                                              BridgedTypeRepr baseTy);
+SWIFT_NAME(
+    "BridgedNamedOpaqueReturnTypeRepr.createParsed(_:base:genericParamList:)")
+BridgedNamedOpaqueReturnTypeRepr BridgedNamedOpaqueReturnTypeRepr_createParsed(
+    BridgedASTContext cContext, BridgedTypeRepr baseTy,
+    BridgedGenericParamList genericParams);
 
 SWIFT_NAME("BridgedOpaqueReturnTypeRepr.createParsed(_:someKeywordLoc:base:)")
 BridgedOpaqueReturnTypeRepr

lib/AST/Bridging/TypeReprBridging.cpp

@@ -293,11 +293,12 @@ BridgedFunctionTypeRepr BridgedFunctionTypeRepr_createParsed(
       resultType.unbridged());
 }
 
-BridgedNamedOpaqueReturnTypeRepr
-BridgedNamedOpaqueReturnTypeRepr_createParsed(BridgedASTContext cContext,
-                                              BridgedTypeRepr baseTy) {
+BridgedNamedOpaqueReturnTypeRepr BridgedNamedOpaqueReturnTypeRepr_createParsed(
+    BridgedASTContext cContext, BridgedTypeRepr baseTy,
+    BridgedGenericParamList genericParams) {
   ASTContext &context = cContext.unbridged();
-  return new (context) NamedOpaqueReturnTypeRepr(baseTy.unbridged(), nullptr);
+  return new (context)
+      NamedOpaqueReturnTypeRepr(baseTy.unbridged(), genericParams.unbridged());
 }
 
 BridgedOpaqueReturnTypeRepr

lib/ASTGen/Sources/ASTGen/Types.swift

@@ -266,8 +266,9 @@ extension ASTGenVisitor {
   }
 
   func generate(namedOpaqueReturnType node: NamedOpaqueReturnTypeSyntax) -> BridgedNamedOpaqueReturnTypeRepr {
+    let genericParams = self.generate(genericParameterClause: node.genericParameterClause)
     let baseTy = generate(type: node.type)
-    return .createParsed(self.ctx, base: baseTy)
+    return .createParsed(self.ctx, base: baseTy, genericParamList: genericParams)
   }
 
   func generate(someOrAnyType node: SomeOrAnyTypeSyntax) -> BridgedTypeRepr {

test/ASTGen/types.swift

@@ -1,15 +1,19 @@
 // RUN: %empty-directory(%t)
 
 // RUN: %target-swift-frontend-dump-parse -enable-experimental-feature ParserASTGen \
+// RUN:   -enable-experimental-feature NamedOpaqueTypes \
 // RUN:   | %sanitize-address > %t/astgen.ast
 // RUN: %target-swift-frontend-dump-parse \
+// RUN:   -enable-experimental-feature NamedOpaqueTypes \
 // RUN:   | %sanitize-address > %t/cpp-parser.ast
 
 // RUN: %diff -u %t/astgen.ast %t/cpp-parser.ast
 
-// RUN: %target-typecheck-verify-swift -enable-experimental-feature ParserASTGen
+// RUN: %target-typecheck-verify-swift -enable-experimental-feature ParserASTGen \
+// RUN:   -enable-experimental-feature NamedOpaqueTypes
 
 // REQUIRES: swift_feature_ParserASTGen
+// REQUIRES: swift_feature_NamedOpaqueTypes
 
 // rdar://116686158
 // UNSUPPORTED: asan
@@ -73,3 +77,5 @@ typealias TestSpecifierAndAttr<T> = (__owned @Sendable @escaping () async -> T)
 
 let globalOptionalInt: _? = 42
 let optionalIntArray: Array<_> = [42]
+
+func testNamedOpaqueReturnTy() -> <T> T { return () }