[CodeComplete] Add ranged for loops code pattern.

Add code pattersn for c++ `range for` loops and objective c `for...in` loops.

Reviewed By: kadircet

Differential Revision: https://reviews.llvm.org/D95131

1 files changed, 23 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index 243f68d..d77c9e4 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -2294,6 +2294,29 @@ static void AddOrdinaryNameResults(Sema::ParserCompletionContext CCC, Scope *S,
       Builder.AddChunk(CodeCompletionString::CK_VerticalSpace);
       Builder.AddChunk(CodeCompletionString::CK_RightBrace);
       Results.AddResult(Result(Builder.TakeString()));
+
+      if (SemaRef.getLangOpts().CPlusPlus11 || SemaRef.getLangOpts().ObjC) {
+        // for ( range_declaration (:|in) range_expression ) { statements }
+        Builder.AddTypedTextChunk("for");
+        Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+        Builder.AddChunk(CodeCompletionString::CK_LeftParen);
+        Builder.AddPlaceholderChunk("range-declaration");
+        Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+        if (SemaRef.getLangOpts().ObjC)
+          Builder.AddTextChunk("in");
+        else
+          Builder.AddChunk(CodeCompletionString::CK_Colon);
+        Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+        Builder.AddPlaceholderChunk("range-expression");
+        Builder.AddChunk(CodeCompletionString::CK_RightParen);
+        Builder.AddChunk(CodeCompletionString::CK_HorizontalSpace);
+        Builder.AddChunk(CodeCompletionString::CK_LeftBrace);
+        Builder.AddChunk(CodeCompletionString::CK_VerticalSpace);
+        Builder.AddPlaceholderChunk("statements");
+        Builder.AddChunk(CodeCompletionString::CK_VerticalSpace);
+        Builder.AddChunk(CodeCompletionString::CK_RightBrace);
+        Results.AddResult(Result(Builder.TakeString()));
+      }
     }
 
     if (S->getContinueParent()) {