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45 lines
2.3 KiB
45 lines
2.3 KiB
import re, logging
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from slither.utils.colors import red, yellow, set_colorization_enabled
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger('Slither.Format')
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set_colorization_enabled(True)
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class FormatConstantFunction:
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@staticmethod
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def format(slither, patches, elements):
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for element in elements:
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if element['type'] != "function":
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# Skip variable elements
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continue
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target_contract = slither.get_contract_from_name(element['type_specific_fields']['parent']['name'])
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if target_contract:
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for function in target_contract.functions:
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if function.name == element['name']:
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FormatConstantFunction.create_patch(slither, patches, \
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element['source_mapping']['filename_absolute'], \
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element['source_mapping']['filename_relative'], \
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["view","pure","constant"], "", \
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int(function.parameters_src.source_mapping['start']), \
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int(function.returns_src.source_mapping['start']))
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break
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@staticmethod
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def create_patch(slither, patches, in_file, in_file_relative, 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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# Find the keywords view|pure|constant and remove them
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m = re.search("(view|pure|constant)", old_str_of_interest.decode('utf-8'))
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if m:
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patches[in_file_relative].append({
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"file" : in_file,
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"detector" : "constant-function",
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"start" : modify_loc_start + m.span()[0],
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"end" : modify_loc_start + m.span()[1],
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"old_string" : m.groups(0)[0], # this is view|pure|constant
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"new_string" : replace_text # this is an empty string ""
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})
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else:
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logger.error(red("No view/pure/constant specifier exists. Regex failed to remove specifier!"))
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sys.exit(-1)
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