Class: Antlr4::Runtime::Transition

Inherits:

Object

• Object
• Antlr4::Runtime::Transition

Defined in:

lib/antlr4/runtime/transition.rb

Direct Known Subclasses

AbstractPredicateTransition, ActionTransition, AtomTransition, EpsilonTransition, RangeTransition, RuleTransition, SetTransition, WildcardTransition

Constant Summary

EPSILON =

1

RANGE =

2

RULE =

3

PREDICATE =

4

ATOM =

5

ACTION =

6

SET =

7

NOT_SET =

8

WILDCARD =

9

PRECEDENCE =

10

@@serialization_names =

%w[INVALID EPSILON RANGE RULE PREDICATE ATOM ACTION SET NOT_SET WILDCARD PRECEDENCE]

@@serialization_types =

{}

Instance Attribute Summary

• #target ⇒ Object

  Returns the value of attribute target.

Instance Method Summary

• #epsilon? ⇒ Boolean
• #initialize(target) ⇒ Transition constructor

  A new instance of Transition.

• #label ⇒ Object
• #matches(symbol, min_vocab_symbol, max_vocab_symbol) ⇒ Object

Constructor Details

#initialize(target) ⇒ Transition

Returns a new instance of Transition.

# File 'lib/antlr4/runtime/transition.rb', line 34

def initialize(target)
  raise 'target cannot be null.' if target.nil?

  @target = target
end

Instance Attribute Details

#target ⇒ Object

Returns the value of attribute target.

# File 'lib/antlr4/runtime/transition.rb', line 32

def target
  @target
end

Instance Method Details

#epsilon? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/antlr4/runtime/transition.rb', line 40

def epsilon?
  false
end

#label ⇒ Object

# File 'lib/antlr4/runtime/transition.rb', line 44

def label
  nil
end

#matches(symbol, min_vocab_symbol, max_vocab_symbol) ⇒ Object

# File 'lib/antlr4/runtime/transition.rb', line 48

def matches(symbol, min_vocab_symbol, max_vocab_symbol)
end