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47 lines
1.1 KiB
Python
47 lines
1.1 KiB
Python
import sys
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import libfoolang
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ctx = libfoolang.AnalysisContext()
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unit = ctx.get_from_buffer('foo.txt', b'example (example)')
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# Make sure that the exact context wraper is re-used over and over
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assert unit.context is ctx
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if unit.diagnostics:
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for d in unit.diagnostics:
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print(d)
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sys.exit(1)
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root = unit.root
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child = root[0]
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# Make sure that the exact unit/node wrapper is re-used over and over
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assert child.parent is root
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assert root[0] is child
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assert root.unit is unit
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# Make sure trying to use a stale reference raises an error
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print('Reparsing...')
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unit.reparse(b'example (example)')
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for name, computation in [
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('.parent', lambda n: n.parent),
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('[0]', lambda n: n[0]),
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('str()', lambda n: str(n))
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]:
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print('Trying to compute: {}...'.format(name))
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try:
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computation(root)
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except libfoolang.StaleReferenceError:
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print(' StaleReferenceError raised!')
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else:
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print(' No error raised...')
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# ... however the equality/hashing methods should not, to allow stale
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# references in dicts/sets to be free'd after the reparse.
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assert isinstance(hash(root), int)
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assert root == root
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print('main.py: Done.')
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