LexerActionExecutor class
Represents an executor for a sequence of lexer actions which traversed during the matching operation of a lexer rule (token).
The executor tracks position information for position-dependent lexer actions efficiently, ensuring that actions appearing only at the end of the rule do not cause bloating of the [DFA] created for the lexer.
@since 4.2
Constructors
-
LexerActionExecutor(List<
LexerAction> lexerActions) -
Constructs an executor for a sequence of
LexerActionactions. @param lexerActions The lexer actions to execute.
Properties
- hashCode → int
-
Caches the result of {@link #hashCode} since the hash code is an element
of the performance-critical {@link LexerATNConfig#hashCode} operation.
no setteroverride
-
lexerActions
→ List<
LexerAction> -
Gets the lexer actions to be executed by this executor.
@return The lexer actions to be executed by this executor.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
execute(
Lexer lexer, CharStream input, int startIndex) → void - Execute the actions encapsulated by this executor within the context of a particular Lexer.
-
fixOffsetBeforeMatch(
int offset) → LexerActionExecutor - Creates a LexerActionExecutor which encodes the current offset for position-dependent lexer actions.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override
Static Methods
-
append(
LexerActionExecutor? lexerActionExecutor, LexerAction lexerAction) → LexerActionExecutor -
Creates a LexerActionExecutor which executes the actions for
the input
lexerActionExecutorfollowed by a specifiedlexerAction.