This revision was automatically updated to reflect the committed changes.
Closed by commit rG03dcd57ecf99: [clang] add a new `swift_attr` attribute
(authored by arphaman).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D92354/new/
https://reviews.llvm.org/D92354
Files:
clang/include/clang/Basic/Attr.td
clang/include/clang/Basic/AttrDocs.td
clang/lib/Sema/SemaDeclAttr.cpp
clang/test/AST/attr-swift_attr.m
clang/test/SemaObjC/validate-attr-swift_attr.m
Index: clang/test/SemaObjC/validate-attr-swift_attr.m
===================================================================
--- /dev/null
+++ clang/test/SemaObjC/validate-attr-swift_attr.m
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -verify -fsyntax-only %s
+
+// expected-error@+1 {{'swift_attr' attribute takes one argument}}
+__attribute__((swift_attr))
+@interface I
+@end
+
+// expected-error@+1 {{'swift_attr' attribute requires a string}}
+__attribute__((swift_attr(1)))
+@interface J
+@end
Index: clang/test/AST/attr-swift_attr.m
===================================================================
--- /dev/null
+++ clang/test/AST/attr-swift_attr.m
@@ -0,0 +1,8 @@
+// RUN: %clang_cc1 -fsyntax-only -ast-dump %s | FileCheck %s
+
+__attribute__((swift_attr("@actor")))
+@interface View
+@end
+
+// CHECK: InterfaceDecl {{.*}} View
+// CHECK-NEXT: SwiftAttrAttr {{.*}} "@actor"
Index: clang/lib/Sema/SemaDeclAttr.cpp
===================================================================
--- clang/lib/Sema/SemaDeclAttr.cpp
+++ clang/lib/Sema/SemaDeclAttr.cpp
@@ -5607,6 +5607,16 @@
D->addAttr(::new (S.Context) ObjCPreciseLifetimeAttr(S.Context, AL));
}
+static void handleSwiftAttrAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
+ // Make sure that there is a string literal as the annotation's single
+ // argument.
+ StringRef Str;
+ if (!S.checkStringLiteralArgumentAttr(AL, 0, Str))
+ return;
+
+ D->addAttr(::new (S.Context) SwiftAttrAttr(S.Context, AL, Str));
+}
+
static void handleSwiftBridge(Sema &S, Decl *D, const ParsedAttr &AL) {
// Make sure that there is a string literal as the annotation's single
// argument.
@@ -7941,6 +7951,9 @@
break;
// Swift attributes.
+ case ParsedAttr::AT_SwiftAttr:
+ handleSwiftAttrAttr(S, D, AL);
+ break;
case ParsedAttr::AT_SwiftBridge:
handleSwiftBridge(S, D, AL);
break;
Index: clang/include/clang/Basic/AttrDocs.td
===================================================================
--- clang/include/clang/Basic/AttrDocs.td
+++ clang/include/clang/Basic/AttrDocs.td
@@ -3628,6 +3628,19 @@
}];
}
+def SwiftAttrDocs : Documentation {
+ let Category = SwiftDocs;
+ let Heading = "swift_attr";
+ let Content = [{
+The ``swift_attr`` provides a Swift-specific annotation for the declaration
+to which the attribute appertains to. It can be used on any declaration
+in Clang. This kind of annotation is ignored by Clang as it doesn't have any
+semantic meaning in languages supported by Clang. The Swift compiler can
+interpret these annotations according to its own rules when importing C or
+Objective-C declarations.
+}];
+}
+
def SwiftBridgeDocs : Documentation {
let Category = SwiftDocs;
let Heading = "swift_bridge";
Index: clang/include/clang/Basic/Attr.td
===================================================================
--- clang/include/clang/Basic/Attr.td
+++ clang/include/clang/Basic/Attr.td
@@ -2149,6 +2149,12 @@
let ASTNode = 0;
}
+def SwiftAttr : InheritableAttr {
+ let Spellings = [GNU<"swift_attr">];
+ let Args = [StringArgument<"Attribute">];
+ let Documentation = [SwiftAttrDocs];
+}
+
def SwiftBridge : InheritableAttr {
let Spellings = [GNU<"swift_bridge">];
let Args = [StringArgument<"SwiftType">];
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