mirror of
https://github.com/dart-lang/sdk
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39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
# Copyright 2014 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Helper functions useful when writing scripts that are run from GN's
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exec_script function."""
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class GNException(Exception):
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pass
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def ToGNString(value, allow_dicts = True):
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"""Prints the given value to stdout.
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allow_dicts indicates if this function will allow converting dictionaries
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to GN scopes. This is only possible at the top level, you can't nest a
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GN scope in a list, so this should be set to False for recursive calls."""
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if isinstance(value, str):
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if value.find('\n') >= 0:
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raise GNException("Trying to print a string with a newline in it.")
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return '"' + value.replace('"', '\\"') + '"'
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if isinstance(value, list):
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return '[ %s ]' % ', '.join(ToGNString(v) for v in value)
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if isinstance(value, dict):
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if not allow_dicts:
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raise GNException("Attempting to recursively print a dictionary.")
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result = ""
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for key in value:
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if not isinstance(key, str):
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raise GNException("Dictionary key is not a string.")
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result += "%s = %s\n" % (key, ToGNString(value[key], False))
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return result
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if isinstance(value, int):
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return str(value)
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raise GNException("Unsupported type when printing to GN.")
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