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Working on #48 : Refactored RelationalOperatorParser.py

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Kodjo Sossouvi
2021-03-11 11:23:00 +01:00
parent 9c4991923e
commit aa42bcb2ec
3 changed files with 124 additions and 112 deletions
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src/parsers/LogicalOperatorParser.py
+16 -13
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@@ -40,21 +40,24 @@ class ReteConditionsEmitter:
def get_conditions(self, expr_nodes):
conditions = []
for expr_node in expr_nodes:
parsed_ret = self.comparison_parser.parse(self.context, expr_node.tokens)
if not parsed_ret.status:
raise FailedToCompileError(parsed_ret.body)
tree = parsed_ret.body.body
error_sink = ErrorSink()
parser_input = ParserInput(None, tokens=expr_node.tokens).reset()
parser_input.next_token()
if isinstance(tree, VariableNode):
var_name = self.init_variable_if_needed(tree, conditions)
if tree.attributes_str is not None:
conditions.append(Condition(var_name, tree.attributes_str, True))
parsed = self.comparison_parser.parse_input(self.context, parser_input, error_sink)
if error_sink.has_error:
raise FailedToCompileError(error_sink.sink)
elif isinstance(tree, ComparisonNode):
if isinstance(tree.left, VariableNode):
left = self.init_variable_if_needed(tree.left, conditions)
attr = tree.left.attributes_str or "__self__"
right = eval(get_text_from_tokens(tree.right.tokens))
if isinstance(parsed, VariableNode):
var_name = self.init_variable_if_needed(parsed, conditions)
if parsed.attributes_str is not None:
conditions.append(Condition(var_name, parsed.attributes_str, True))
elif isinstance(parsed, ComparisonNode):
if isinstance(parsed.left, VariableNode):
left = self.init_variable_if_needed(parsed.left, conditions)
attr = parsed.left.attributes_str or "__self__"
right = eval(get_text_from_tokens(parsed.right.tokens))
conditions.append(Condition(left, attr, right))
return [AndConditions(conditions)]