Class: Antlr4::Runtime::PredicateTransition
- Inherits:
-
AbstractPredicateTransition
- Object
- Transition
- AbstractPredicateTransition
- Antlr4::Runtime::PredicateTransition
- Defined in:
- lib/antlr4/runtime/predicate_transition.rb
Constant Summary
Constants inherited from Transition
Transition::ACTION, Transition::ATOM, Transition::EPSILON, Transition::NOT_SET, Transition::PRECEDENCE, Transition::PREDICATE, Transition::RANGE, Transition::RULE, Transition::SET, Transition::WILDCARD
Instance Attribute Summary collapse
-
#is_ctx_dependent ⇒ Object
readonly
e.g., $i ref in pred.
-
#pred_index ⇒ Object
readonly
Returns the value of attribute pred_index.
-
#rule_index ⇒ Object
readonly
Returns the value of attribute rule_index.
Attributes inherited from Transition
Instance Method Summary collapse
- #epsilon? ⇒ Boolean
-
#initialize(target, rule_index, pred_index, is_ctx_dependent) ⇒ PredicateTransition
constructor
A new instance of PredicateTransition.
- #matches(_symbol, _min_vocab_symbol, _max_vocab_symbol) ⇒ Object
- #predicate ⇒ Object
- #serialization_type ⇒ Object
- #to_s ⇒ Object
Methods inherited from Transition
Constructor Details
#initialize(target, rule_index, pred_index, is_ctx_dependent) ⇒ PredicateTransition
Returns a new instance of PredicateTransition.
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 8 def initialize(target, rule_index, pred_index, is_ctx_dependent) super(target) @rule_index = rule_index @pred_index = pred_index @is_ctx_dependent = is_ctx_dependent end |
Instance Attribute Details
#is_ctx_dependent ⇒ Object (readonly)
e.g., $i ref in pred
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 6 def is_ctx_dependent @is_ctx_dependent end |
#pred_index ⇒ Object (readonly)
Returns the value of attribute pred_index.
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 5 def pred_index @pred_index end |
#rule_index ⇒ Object (readonly)
Returns the value of attribute rule_index.
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 4 def rule_index @rule_index end |
Instance Method Details
#epsilon? ⇒ Boolean
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 19 def epsilon? true end |
#matches(_symbol, _min_vocab_symbol, _max_vocab_symbol) ⇒ Object
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 23 def matches(_symbol, _min_vocab_symbol, _max_vocab_symbol) false end |
#predicate ⇒ Object
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 27 def predicate SemanticContext::Predicate.new(@rule_index, @pred_index, @is_ctx_dependent) end |
#serialization_type ⇒ Object
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 15 def serialization_type PREDICATE end |
#to_s ⇒ Object
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# File 'lib/antlr4/runtime/predicate_transition.rb', line 31 def to_s 'pred_' + @rule_index + ':' + @pred_index end |