dart-sdk/tools/spec_parse.py
Erik Ernst b61f1047d5 Add a tools/spec_parse.py script.
This makes it possible to run the spec parser in a way which is a bit
more like the other tools that we have (e.g., tools/test.py):

  > tools/spec_parse.py tests/language/callable_test.dart

It still requires the developer to run `make parser` in
tools/spec_parser and hence does not run on a buildbot, but it's one
step forward.

Change-Id: I68ad6cea55bc02dddac21558acec33fc4bfc1981
Reviewed-on: https://dart-review.googlesource.com/9620
Commit-Queue: Erik Ernst <eernst@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
2017-10-10 16:03:36 +00:00

50 lines
1.7 KiB
Python
Executable file

#!/usr/bin/env python
#
# Copyright (c) 2017, 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.
# This script runs the parser which is generated using ANTLR 3 from
# docs/language/Dart.g. It relies on a certain environment and is hence
# usable locally where this environment can be obtained, but it may not be
# possible to run it, e.g., on build bots. The requirements are as follows:
#
# - `make parser` in spec_parser has been executed successfully.
# - A suitable JVM is in the PATH and may be executed as 'java'.
# - the ANTLR3 jar is available as /usr/share/java/antlr3-runtime.jar.
import os
import string
import subprocess
import sys
import utils
def Help(missing):
print('Execution of the spec parser failed. Missing: ' + missing)
print('Please read the comment near the top of spec_parse.py.\n')
sys.exit(1)
def Main():
args = sys.argv[1:]
tools_dir = os.path.dirname(os.path.realpath(__file__))
spec_parser_dir = os.path.join(tools_dir, 'spec_parser')
spec_parser_file = os.path.join(spec_parser_dir, 'SpecParser.class')
antlr_jar = '/usr/share/java/antlr3-runtime.jar'
class_path = string.join([spec_parser_dir, antlr_jar], ':')
command = ['java', '-cp', class_path, 'SpecParser'] + args
if not os.path.exists(antlr_jar): Help(antlr_jar)
if not os.path.exists(spec_parser_file): Help('"make parser" in spec_parser')
with utils.CoreDumpArchiver(args):
exit_code = subprocess.call(command)
utils.DiagnoseExitCode(exit_code, command)
return exit_code
if __name__ == '__main__':
sys.exit(Main())