From: Douglas Gregor <dgregor@apple.com>
Date: Tue, 31 Jul 2012 15:27:48 +0000 (+0000)
Subject: Tweak code-completion heuristics deciding between a lambda
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d48ab06b178e400ac31ef4fe649e9c33d2caf651;p=clang

Tweak code-completion heuristics deciding between a lambda
code-completion and an Objective-C message send, based on Jordan's
feedback.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161049 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Parse/ParseExprCXX.cpp b/lib/Parse/ParseExprCXX.cpp
index b1ce59f28c..592a3cc160 100644
--- a/lib/Parse/ParseExprCXX.cpp
+++ b/lib/Parse/ParseExprCXX.cpp
@@ -646,7 +646,9 @@ llvm::Optional<unsigned> Parser::ParseLambdaIntroducer(LambdaIntroducer &Intro){
         // in Objective-C, where this is Almost Surely meant to be a message
         // send. In that case, fail here and let the ObjC message
         // expression parser perform the completion.
-        if (Tok.is(tok::code_completion) && !getLangOpts().ObjC1) {
+        if (Tok.is(tok::code_completion) &&
+            !(getLangOpts().ObjC1 && Intro.Default == LCD_None &&
+              !Intro.Captures.empty())) {
           Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 
                                                /*AfterAmpersand=*/false);
           ConsumeCodeCompletionToken();
diff --git a/test/Index/complete-lambdas.mm b/test/Index/complete-lambdas.mm
index 5f33906471..3f77dd2069 100644
--- a/test/Index/complete-lambdas.mm
+++ b/test/Index/complete-lambdas.mm
@@ -16,6 +16,8 @@
   [a instanceMethod:0 withOther:1];
   [self someMethod:a];
   [super instanceMethod];
+  [&,a ]{};
+  [a,self instanceMethod:0 withOther:1]{};  
 }
 
 @end
@@ -38,3 +40,12 @@
 // CHECK-CC4: NotImplemented:{ResultType A *}{TypedText super} (40)
 
 // RUN: c-index-test -code-completion-at=%s:18:10 -x objective-c++ -std=c++11 %s | FileCheck -check-prefix=CHECK-CC1 %s
+
+// RUN: c-index-test -code-completion-at=%s:19:8 -x objective-c++ -std=c++11 %s | FileCheck -check-prefix=CHECK-CC5 %s
+// CHECK-CC5: NotImplemented:{ResultType SEL}{TypedText _cmd} (80)
+// CHECK-CC5-NEXT: NotImplemented:{ResultType B *}{TypedText self} (34)
+
+// RUN: c-index-test -code-completion-at=%s:20:11 -x objective-c++ -std=c++11 %s | FileCheck -check-prefix=CHECK-CC6 %s
+// CHECK-CC6: ObjCInstanceMethodDecl:{ResultType id}{TypedText instanceMethod:}{Placeholder (int)}{HorizontalSpace  }{TypedText withOther:}{Placeholder (int)} (37) (parent: ObjCInterfaceDecl 'A')
+// CHECK-CC6-NEXT: ObjCInstanceMethodDecl:{ResultType id}{TypedText someMethod:}{Placeholder (A *)} (32) (parent: ObjCImplementationDecl 'B')
+