Teach code completion to adjust its completion priorities based on the

type that we expect to see at a given point in the grammar, e.g., when
initializing a variable, returning a result, or calling a function. We
don't prune the candidate set at all, just adjust priorities to favor
things that should type-check, using an ultra-simplified type system.

llvm-svn: 105128

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/lib/Parse/ParseStmt.cpp b/clang/lib/Parse/ParseStmt.cpp
index 1ca6a0c1c41..f0930a0a1a4 100644
--- a/clang/lib/Parse/ParseStmt.cpp
+++ b/clang/lib/Parse/ParseStmt.cpp
@@ -1199,6 +1199,13 @@ Parser::OwningStmtResult Parser::ParseReturnStatement(AttributeList *Attr) {
 
   OwningExprResult R(Actions);
   if (Tok.isNot(tok::semi)) {
+    if (Tok.is(tok::code_completion)) {
+      Actions.CodeCompleteReturn(CurScope);
+      ConsumeCodeCompletionToken();
+      SkipUntil(tok::semi, false, true);
+      return StmtError();
+    }
+        
     R = ParseExpression();
     if (R.isInvalid()) {  // Skip to the semicolon, but don't consume it.
       SkipUntil(tok::semi, false, true);