[PATCH] D42241: [CodeComplete] Fix completion in the middle of idents in macro calls

[Phabricator via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL323133: [CodeComplete] Fix completion in the middle of idents in macro calls (authored by ibiryukov, committed by ).
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Repository:
  rL LLVM

https://reviews.llvm.org/D42241

Files:
  cfe/trunk/lib/Lex/Preprocessor.cpp
  cfe/trunk/test/CodeCompletion/inside-macros.cpp


Index: cfe/trunk/test/CodeCompletion/inside-macros.cpp
===================================================================
--- cfe/trunk/test/CodeCompletion/inside-macros.cpp
+++ cfe/trunk/test/CodeCompletion/inside-macros.cpp
@@ -0,0 +1,13 @@
+#define ID(X) X
+
+void test(bool input_var) {
+  ID(input_var) = true;
+  // Check that input_var shows up when completing at the start, in the middle
+  // and at the end of the identifier.
+  //
+  // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:4:6 %s -o - | FileCheck %s
+  // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:4:8 %s -o - | FileCheck %s
+  // RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:4:15 %s -o - | FileCheck %s
+
+  // CHECK: input_var
+}
Index: cfe/trunk/lib/Lex/Preprocessor.cpp
===================================================================
--- cfe/trunk/lib/Lex/Preprocessor.cpp
+++ cfe/trunk/lib/Lex/Preprocessor.cpp
@@ -773,8 +773,13 @@
     }
   } while (!ReturnedToken);
 
-  if (Result.is(tok::code_completion))
+  if (Result.is(tok::code_completion) && Result.getIdentifierInfo()) {
+    // Remember the identifier before code completion token.
     setCodeCompletionIdentifierInfo(Result.getIdentifierInfo());
+    // Set IdenfitierInfo to null to avoid confusing code that handles both
+    // identifiers and completion tokens.
+    Result.setIdentifierInfo(nullptr);
+  }
 
   LastTokenWasAt = Result.is(tok::at);
 }


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