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30 lines
1.2 KiB
30 lines
1.2 KiB
import re
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from slither.exceptions import SlitherException
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from ..utils.patches import create_patch
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def format(slither, result):
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elements = result['elements']
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for element in elements:
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_patch(slither, result, element['source_mapping']['filename_absolute'],
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element['name'],
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"constant " + element['name'],
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element['source_mapping']['start'],
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element['source_mapping']['start'] + element['source_mapping']['length'])
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def _patch(slither, result, in_file, match_text, replace_text, modify_loc_start, modify_loc_end):
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in_file_str = slither.source_code[in_file].encode('utf-8')
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old_str_of_interest = in_file_str[modify_loc_start:modify_loc_end]
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# Add keyword `constant` before the variable name
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(new_str_of_interest, num_repl) = re.subn(match_text, replace_text, old_str_of_interest.decode('utf-8'), 1)
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if num_repl != 0:
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create_patch(result,
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in_file,
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modify_loc_start,
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modify_loc_end,
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old_str_of_interest.decode('utf-8'),
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new_str_of_interest)
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else:
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raise SlitherException("State variable not found?!")
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