mirror of
https://github.com/dart-lang/sdk
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b4f13b92ea
Change-Id: I3d9b133afd56f5b40bc38a4dab4eac73d5a2341a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/195922 Commit-Queue: Erik Ernst <eernst@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
44 lines
1.6 KiB
Python
Executable file
44 lines
1.6 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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# for details. All rights reserved. Use of this source code is governed by a
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# BSD-style license that can be found in the LICENSE file.
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# This script runs the parser which is generated using ANTLR 4 from
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# docs/language/Dart.g. It relies on a certain environment and is hence
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# usable locally where this environment can be obtained, but it may not be
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# possible to run it, e.g., on build bots. The requirements are as follows:
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#
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# - `make parser` in spec_parser has been executed successfully.
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# - A suitable JVM is in the PATH and may be executed as 'java'.
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# - the ANTLR3 jar is available as /usr/share/java/antlr4-runtime.jar.
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import os
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import subprocess
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import sys
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def Help(missing):
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print('Execution of the spec parser failed. Missing: ' + missing)
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print('Please read the comment near the top of spec_parse.py.\n')
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sys.exit(1)
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def Main():
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args = sys.argv[1:]
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tools_dir = os.path.dirname(os.path.realpath(__file__))
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spec_parser_dir = os.path.join(tools_dir, 'spec_parser')
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spec_parser_file = os.path.join(spec_parser_dir, 'SpecParser.class')
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antlr_jar = '/usr/share/java/antlr4-runtime.jar'
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class_path = ':'.join([spec_parser_dir, antlr_jar])
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command = ['java', '-cp', class_path, 'SpecParser'] + args
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if not os.path.exists(antlr_jar): Help(antlr_jar)
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if not os.path.exists(spec_parser_file):
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Help('"make parser" in spec_parser')
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return subprocess.call(command)
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if __name__ == '__main__':
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sys.exit(Main())
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