Parse harmony let declarations.

preparser/preparser-process.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 17 matching lines @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
 
 #include "../include/v8stdint.h"
 #include "../include/v8-preparser.h"
 
 #include "../src/preparse-data-format.h"
 
+namespace v8 {
+namespace internal {
+bool FLAG_harmony_block_scoping = false;
+} }  // namespace v8::internal

[Lasse Reichstein, 2011/08/12 08:08:33]

Put this in preparser-api.cc.
That's where other "essential" parts of V8 are emulated.

Or, preferably, don't use FLAG_harmony_block_scoping in the scanner or
preparser, but pass a flag to the scanner/parser when they are created. Better
to inject than to depend on global variables. It reduces dependencies.

[Steven, 2011/08/16 09:05:32]

It's now injected into the scanner and preparser. I did not want to change the
public api of the preparser (i.e. v8::preparser::PreParser::PreParseProgram) so
the preparser reads the flag from the scanner it gets.

On 2011/08/12 08:08:33, Lasse Reichstein wrote:

+
 namespace i = v8::internal;
 
 // This file is only used for testing the stand-alone preparser
 // library.
 // The first argument must be the path of a JavaScript source file, or
 // the flags "-e" and the next argument is then the source of a JavaScript
 // program.
 // Optionally this can be followed by the word "throws" (case sensitive),
 // which signals that the parsing is expected to throw - the default is
 // to expect the parsing to not throw.
@@ skipping 322 matching lines @@
   if (data.stack_overflow()) {
     fail(&data, "ERROR: Stack overflow\n");
   }
 
   // Check that the expected exception is thrown, if an exception is
   // expected.
   CheckException(&data, &expects);
 
   return EXIT_SUCCESS;
 }