Remove diagnostics from clang-format.

We only ever implemented one and that one is not actually all that
helpful (e.g. gets incorrectly triggered by macros).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181871 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang/Format/Format.h

@@ -177,15 +177,11 @@ std::string configurationAsText(const FormatStyle &Style);
 /// everything that might influence its formatting or might be influenced by its
 /// formatting.
 ///
-/// \param DiagClient A custom DiagnosticConsumer. Can be 0, in this case
-/// diagnostic is output to llvm::errs().
-///
 /// Returns the \c Replacements necessary to make all \p Ranges comply with
 /// \p Style.
 tooling::Replacements reformat(const FormatStyle &Style, Lexer &Lex,
                                SourceManager &SourceMgr,
-                               std::vector<CharSourceRange> Ranges,
-                               DiagnosticConsumer *DiagClient = 0);
+                               std::vector<CharSourceRange> Ranges);
 
 /// \brief Returns the \c LangOpts that the formatter expects you to set.
 LangOptions getFormattingLangOpts();

lib/Format/Format.cpp

@@ -19,11 +19,9 @@
 #include "TokenAnnotator.h"
 #include "UnwrappedLineParser.h"
 #include "WhitespaceManager.h"
-#include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/OperatorPrecedence.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Format/Format.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
 #include "clang/Lex/Lexer.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/Allocator.h"
@@ -1140,17 +1138,16 @@ private:
 
 class Formatter : public UnwrappedLineConsumer {
 public:
-  Formatter(DiagnosticsEngine &Diag, const FormatStyle &Style, Lexer &Lex,
-            SourceManager &SourceMgr,
+  Formatter(const FormatStyle &Style, Lexer &Lex, SourceManager &SourceMgr,
             const std::vector<CharSourceRange> &Ranges)
-      : Diag(Diag), Style(Style), Lex(Lex), SourceMgr(SourceMgr),
+      : Style(Style), Lex(Lex), SourceMgr(SourceMgr),
         Whitespaces(SourceMgr, Style), Ranges(Ranges) {}
 
   virtual ~Formatter() {}
 
   tooling::Replacements format() {
     LexerBasedFormatTokenSource Tokens(Lex, SourceMgr);
-    UnwrappedLineParser Parser(Diag, Style, Tokens, *this);
+    UnwrappedLineParser Parser(Style, Tokens, *this);
     bool StructuralError = Parser.parse();
     unsigned PreviousEndOfLineColumn = 0;
     TokenAnnotator Annotator(Style, SourceMgr, Lex,
@@ -1529,7 +1526,6 @@ private:
     }
   }
 
-  DiagnosticsEngine &Diag;
   FormatStyle Style;
   Lexer &Lex;
   SourceManager &SourceMgr;
@@ -1540,20 +1536,8 @@ private:
 
 tooling::Replacements reformat(const FormatStyle &Style, Lexer &Lex,
                                SourceManager &SourceMgr,
-                               std::vector<CharSourceRange> Ranges,
-                               DiagnosticConsumer *DiagClient) {
-  IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
-  OwningPtr<DiagnosticConsumer> DiagPrinter;
-  if (DiagClient == 0) {
-    DiagPrinter.reset(new TextDiagnosticPrinter(llvm::errs(), &*DiagOpts));
-    DiagPrinter->BeginSourceFile(Lex.getLangOpts(), Lex.getPP());
-    DiagClient = DiagPrinter.get();
-  }
-  DiagnosticsEngine Diagnostics(
-      IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
-      DiagClient, false);
-  Diagnostics.setSourceManager(&SourceMgr);
-  Formatter formatter(Diagnostics, Style, Lex, SourceMgr, Ranges);
+                               std::vector<CharSourceRange> Ranges) {
+  Formatter formatter(Style, Lex, SourceMgr, Ranges);
   return formatter.format();
 }
 

lib/Format/UnwrappedLineParser.cpp

@@ -16,7 +16,6 @@
 #define DEBUG_TYPE "format-parser"
 
 #include "UnwrappedLineParser.h"
-#include "clang/Basic/Diagnostic.h"
 #include "llvm/Support/Debug.h"
 
 namespace clang {
@@ -125,11 +124,11 @@ private:
   UnwrappedLine *PreBlockLine;
 };
 
-UnwrappedLineParser::UnwrappedLineParser(
-    clang::DiagnosticsEngine &Diag, const FormatStyle &Style,
-    FormatTokenSource &Tokens, UnwrappedLineConsumer &Callback)
+UnwrappedLineParser::UnwrappedLineParser(const FormatStyle &Style,
+                                         FormatTokenSource &Tokens,
+                                         UnwrappedLineConsumer &Callback)
     : Line(new UnwrappedLine), MustBreakBeforeNextToken(false),
-      CurrentLines(&Lines), StructuralError(false), Diag(Diag), Style(Style),
+      CurrentLines(&Lines), StructuralError(false), Style(Style),
       Tokens(&Tokens), Callback(Callback) {}
 
 bool UnwrappedLineParser::parse() {
@@ -173,9 +172,6 @@ void UnwrappedLineParser::parseLevel(bool HasOpeningBrace) {
     case tok::r_brace:
       if (HasOpeningBrace)
         return;
-      Diag.Report(FormatTok.Tok.getLocation(),
-                  Diag.getCustomDiagID(clang::DiagnosticsEngine::Error,
-                                       "unexpected '}'"));
       StructuralError = true;
       nextToken();
       addUnwrappedLine();

lib/Format/UnwrappedLineParser.h

@@ -23,9 +23,6 @@
 #include <list>
 
 namespace clang {
-
-class DiagnosticsEngine;
-
 namespace format {
 
 /// \brief A wrapper around a \c Token storing information about the
@@ -129,8 +126,7 @@ public:
 
 class UnwrappedLineParser {
 public:
-  UnwrappedLineParser(clang::DiagnosticsEngine &Diag, const FormatStyle &Style,
-                      FormatTokenSource &Tokens,
+  UnwrappedLineParser(const FormatStyle &Style, FormatTokenSource &Tokens,
                       UnwrappedLineConsumer &Callback);
 
   /// Returns true in case of a structural error.
@@ -203,7 +199,6 @@ private:
   // indentation levels.
   bool StructuralError;
 
-  clang::DiagnosticsEngine &Diag;
   const FormatStyle &Style;
   FormatTokenSource *Tokens;
   UnwrappedLineConsumer &Callback;

test/Format/diagnostic.cpp

@@ -1,4 +0,0 @@
-// RUN: clang-format 2>&1 >/dev/null %s |FileCheck %s
-
-}
-// CHECK: diagnostic.cpp:[[@LINE-1]]:1: error: unexpected '}'

unittests/Format/FormatTest.cpp

@@ -32,8 +32,8 @@ protected:
         CharSourceRange::getCharRange(Start, Start.getLocWithOffset(Length)));
     Lexer Lex(ID, Context.Sources.getBuffer(ID), Context.Sources,
               getFormattingLangOpts());
-    tooling::Replacements Replace = reformat(
-        Style, Lex, Context.Sources, Ranges, new IgnoringDiagConsumer());
+    tooling::Replacements Replace =
+        reformat(Style, Lex, Context.Sources, Ranges);
     ReplacementCount = Replace.size();
     EXPECT_TRUE(applyAllReplacements(Replace, Context.Rewrite));
     DEBUG(llvm::errs() << "\n" << Context.getRewrittenText(ID) << "\n\n");