Introduce basic code-completion support for preprocessor directives,

e.g., after a "#" we'll suggest #if, #ifdef, etc.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111943 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index 8fd1e48994..230506d85f 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -50,6 +50,8 @@ Parser::Parser(Preprocessor &pp, Action &actions)
 
   WeakHandler.reset(new PragmaWeakHandler(actions));
   PP.AddPragmaHandler(WeakHandler.get());
+      
+  PP.setCodeCompletionHandler(*this);
 }
 
 /// If a crash happens while the parser is active, print out a line indicating
@@ -316,6 +318,7 @@ Parser::~Parser() {
   UnusedHandler.reset();
   PP.RemovePragmaHandler(WeakHandler.get());
   WeakHandler.reset();
+  PP.clearCodeCompletionHandler();
 }
 
 /// Initialize - Warm up the parser.
@@ -1126,3 +1129,13 @@ void Parser::CodeCompletionRecovery() {
 // performance-sensitive.
 void Parser::FieldCallback::_anchor() {
 }
+
+// Code-completion pass-through functions
+
+void Parser::CodeCompleteDirective(bool InConditional) {
+  Actions.CodeCompletePreprocessorDirective(getCurScope(), InConditional);
+}
+
+void Parser::CodeCompleteInConditionalExclusion() {
+  Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope());
+}