Lazily format LanguageError messages (fix issue 15069).

runtime/vm/parser.h

 // 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.
 
 #ifndef VM_PARSER_H_
 #define VM_PARSER_H_
 
 #include "include/dart_api.h"
 
 #include "platform/assert.h"
@@ skipping 145 matching lines @@
   // * its default value (or null if none was declared)
   // * an array of metadata (or null if no metadata was declared).
   enum {
     kParameterIsFinalOffset,
     kParameterDefaultValueOffset,
     kParameterMetadataOffset,
     kParameterEntrySize,
   };
   static RawObject* ParseFunctionParameters(const Function& func);
 
-  // Format and print a message with source location.
-  // A null script means no source and a negative token_pos means no position.
-  static void PrintMessage(const Script& script,
-                           intptr_t token_pos,
-                           const char* message_header,
-                           const char* format, ...) PRINTF_ATTRIBUTE(4, 5);
-
-  // Build an error object containing a formatted error or warning message.
-  // A null script means no source and a negative token_pos means no position.
-  static RawError* FormatError(const Script& script,
-                               intptr_t token_pos,
-                               const char* message_header,
-                               const char* format,
-                               va_list args);
-  static RawError* FormatErrorMsg(const Script& script,
-                                  intptr_t token_pos,
-                                  const char* message_header,
-                                  const char* format, ...)
-      PRINTF_ATTRIBUTE(4, 5);
-
-  // Same as FormatError, but appends the new error to the 'prev_error'.
-  static RawError* FormatErrorWithAppend(const Error& prev_error,
-                                         const Script& script,
-                                         intptr_t token_pos,
-                                         const char* message_header,
-                                         const char* format,
-                                         va_list args);
-
  private:
   friend class EffectGraphVisitor;  // For BuildNoSuchMethodArguments.
 
   struct Block;
   class TryBlocks;
 
   Parser(const Script& script, const Library& library, intptr_t token_pos);
   Parser(const Script& script, ParsedFunction* function, intptr_t token_pos);
   ~Parser();
 
@@ skipping 106 matching lines @@
   void SkipFunctionPreamble();
 
   void CheckConstructorCallTypeArguments(
     intptr_t pos,
     Function& constructor,
     const AbstractTypeArguments& type_arguments);
 
   // A null script means no source and a negative token_pos means no position.
   static RawString* FormatMessage(const Script& script,
                                   intptr_t token_pos,
-                                  const char* message_header,
+                                  LanguageError::Kind kind,
                                   const char* format,
                                   va_list args);
 
   // Reports error/warning msg at location of current token in current script.
   void ErrorMsg(const char* msg, ...) PRINTF_ATTRIBUTE(2, 3);
   void Warning(const char* msg, ...)  PRINTF_ATTRIBUTE(2, 3);
   void Unimplemented(const char* msg);
 
   // Reports error message at given location in current script.
   void ErrorMsg(intptr_t token_pos, const char* msg, ...) const
@@ skipping 400 matching lines @@
   intptr_t last_used_try_index_;
 
   bool unregister_pending_function_;
 
   DISALLOW_COPY_AND_ASSIGN(Parser);
 };
 
 }  // namespace dart
 
 #endif  // VM_PARSER_H_