LexerActionExecutor

@uml Represents an executor for a sequence of lexer actions which traversed during the matching operation of a lexer rule (token).

<p>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 {@link DFA} created for the lexer.</p>

@author Sam Harwell @since 4.2

class LexerActionExecutor {

this(LexerAction[] lexerActions);

static LexerActionExecutor append(LexerActionExecutor lexerActionExecutor, LexerAction lexerAction);

LexerActionExecutor fixOffsetBeforeMatch(int offset);

LexerAction[] getLexerActions();

void execute(InterfaceLexer lexer, CharStream input, int startIndex);

size_t toHash();

bool opEquals(Object obj);

}

Constructors

this this(LexerAction[] lexerActions): @uml Constructs an executor for a sequence of {@link LexerAction} actions. @param lexerActions The lexer actions to execute.

Members

Functions

execute void execute(InterfaceLexer lexer, CharStream input, int startIndex): Execute the actions encapsulated by this executor within the context of a particular {@link Lexer}.
fixOffsetBeforeMatch LexerActionExecutor fixOffsetBeforeMatch(int offset): @uml Creates a {@link LexerActionExecutor} which encodes the current offset for position-dependent lexer actions.
getLexerActions LexerAction[] getLexerActions(): Undocumented in source. Be warned that the author may not have intended to support it.
opEquals bool opEquals(Object obj): @uml @override
toHash size_t toHash(): @uml @safe @nothrow @override

Static functions

append LexerActionExecutor append(LexerActionExecutor lexerActionExecutor, LexerAction lexerAction): @uml Creates a {@link LexerActionExecutor} which executes the actions forthe input {@code lexerActionExecutor} followed by a specified {@code lexerAction}.

LexerActionExecutor

Constructors

Members

Functions

Static functions

Meta

Source