class Antlr4::Runtime::FailedPredicateException
Attributes
predicate[R]
predicate_index[R]
rule_index[R]
Public Class Methods
new(recognizer, predicate = nil, message = nil)
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Calls superclass method
# File lib/antlr4/runtime/failed_predicate_exception.rb, line 8 def initialize(recognizer, predicate = nil, message = nil) super(format_message(predicate, message)) @recognizer = recognizer @input = recognizer.input_stream @context = recognizer._ctx s = recognizer._interp.atn.states.get(recognizer.getState) trans = s.transition(0) if trans.is_a? PredicateTransition @rule_index = trans.rule_index @predicate_index = trans.pred_index else @rule_index = 0 @predicate_index = 0 end @predicate = predicate @offending_token = recognizer.current_token end
Public Instance Methods
format_message(predicate, message)
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# File lib/antlr4/runtime/failed_predicate_exception.rb, line 29 def format_message(predicate, message) message.nil? ? message : "failed predicate: {" + predicate + "}?" end