Rename Script's source to Source. Trace parser (--trace-parser) only if source is available (thus s…

runtime/vm/parser.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/parser.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/compiler_stats.h"
@@ skipping 43 matching lines @@
 static const char* kPhaseParameterName = ":phase";
 static const char* kGetIteratorName = "iterator";
 static const char* kNoSuchMethodName = "noSuchMethod";
 
 #if defined(DEBUG)
 
 class TraceParser : public ValueObject {
  public:
   TraceParser(intptr_t token_pos, const Script& script, const char* msg) {
     if (FLAG_trace_parser) {
-      intptr_t line, column;
-      script.GetTokenLocation(token_pos, &line, &column);
-      PrintIndent();
-      OS::Print("%s (line %d, col %d, token %d)\n",
-                msg, line, column, token_pos);
+      // Skips tracing of bootstrap libraries.
+      if (script.HasSource()) {
+        intptr_t line, column;
+        script.GetTokenLocation(token_pos, &line, &column);
+        PrintIndent();
+        OS::Print("%s (line %d, col %d, token %d)\n",
+                  msg, line, column, token_pos);
+      }
       indent_++;
     }
   }
   ~TraceParser() { indent_--; }
  private:
   void PrintIndent() {
     for (int i = 0; i < indent_; i++) { OS::Print(". "); }
   }
   static int indent_;
 };
@@ skipping 8571 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart