refactored LexerAction.js to use es 6 classes
use jsdoc use module.exports
This commit is contained in:
Camilo Roca
parent
44331c067e
commit
d61e4d5049
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@ -1,366 +1,384 @@
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//
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/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
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* Use of this file is governed by the BSD 3-clause license that
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* can be found in the LICENSE.txt file in the project root.
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*/
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//
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function LexerActionType() {
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const LexerActionType = {
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// The type of a {@link LexerChannelAction} action.
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CHANNEL: 0,
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// The type of a {@link LexerCustomAction} action
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CUSTOM: 1,
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// The type of a {@link LexerModeAction} action.
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MODE: 2,
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//The type of a {@link LexerMoreAction} action.
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MORE: 3,
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//The type of a {@link LexerPopModeAction} action.
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POP_MODE: 4,
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//The type of a {@link LexerPushModeAction} action.
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PUSH_MODE: 5,
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//The type of a {@link LexerSkipAction} action.
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SKIP: 6,
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//The type of a {@link LexerTypeAction} action.
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TYPE: 7
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}
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LexerActionType.CHANNEL = 0; //The type of a {@link LexerChannelAction} action.
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LexerActionType.CUSTOM = 1; //The type of a {@link LexerCustomAction} action.
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LexerActionType.MODE = 2; //The type of a {@link LexerModeAction} action.
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LexerActionType.MORE = 3; //The type of a {@link LexerMoreAction} action.
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LexerActionType.POP_MODE = 4; //The type of a {@link LexerPopModeAction} action.
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LexerActionType.PUSH_MODE = 5; //The type of a {@link LexerPushModeAction} action.
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LexerActionType.SKIP = 6; //The type of a {@link LexerSkipAction} action.
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LexerActionType.TYPE = 7; //The type of a {@link LexerTypeAction} action.
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class LexerAction {
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constructor(action) {
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this.actionType = action;
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this.isPositionDependent = false;
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}
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function LexerAction(action) {
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this.actionType = action;
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this.isPositionDependent = false;
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return this;
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hashCode() {
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const hash = new Hash();
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this.updateHashCode(hash);
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return hash.finish()
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}
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updateHashCode(hash) {
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hash.update(this.actionType);
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}
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equals(other) {
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return this === other;
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}
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}
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LexerAction.prototype.hashCode = function() {
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var hash = new Hash();
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this.updateHashCode(hash);
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return hash.finish()
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};
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LexerAction.prototype.updateHashCode = function(hash) {
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hash.update(this.actionType);
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};
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/**
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* Implements the {@code skip} lexer action by calling {@link Lexer//skip}.
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*
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* <p>The {@code skip} command does not have any parameters, so this action is
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* implemented as a singleton instance exposed by {@link //INSTANCE}.</p>
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*/
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class LexerSkipAction extends LexerAction {
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constructor() {
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super(LexerActionType.SKIP);
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}
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LexerAction.prototype.equals = function(other) {
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return this === other;
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};
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execute(lexer) {
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lexer.skip();
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}
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//
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// Implements the {@code skip} lexer action by calling {@link Lexer//skip}.
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//
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// <p>The {@code skip} command does not have any parameters, so this action is
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// implemented as a singleton instance exposed by {@link //INSTANCE}.</p>
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function LexerSkipAction() {
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LexerAction.call(this, LexerActionType.SKIP);
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return this;
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toString() {
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return "skip";
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}
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}
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LexerSkipAction.prototype = Object.create(LexerAction.prototype);
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LexerSkipAction.prototype.constructor = LexerSkipAction;
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// Provides a singleton instance of this parameterless lexer action.
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LexerSkipAction.INSTANCE = new LexerSkipAction();
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LexerSkipAction.prototype.execute = function(lexer) {
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lexer.skip();
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};
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LexerSkipAction.prototype.toString = function() {
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return "skip";
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};
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// Implements the {@code type} lexer action by calling {@link Lexer//setType}
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// with the assigned type.
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function LexerTypeAction(type) {
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LexerAction.call(this, LexerActionType.TYPE);
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this.type = type;
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return this;
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}
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LexerTypeAction.prototype = Object.create(LexerAction.prototype);
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LexerTypeAction.prototype.constructor = LexerTypeAction;
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LexerTypeAction.prototype.execute = function(lexer) {
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lexer.type = this.type;
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};
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LexerTypeAction.prototype.updateHashCode = function(hash) {
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hash.update(this.actionType, this.type);
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};
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LexerTypeAction.prototype.equals = function(other) {
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if(this === other) {
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return true;
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} else if (! (other instanceof LexerTypeAction)) {
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return false;
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} else {
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return this.type === other.type;
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/**
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* Implements the {@code type} lexer action by calling {@link Lexer//setType}
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* with the assigned type
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*/
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class LexerTypeAction extends LexerAction {
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constructor(type) {
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super(LexerActionType.TYPE);
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this.type = type;
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}
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};
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LexerTypeAction.prototype.toString = function() {
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return "type(" + this.type + ")";
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};
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// Implements the {@code pushMode} lexer action by calling
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// {@link Lexer//pushMode} with the assigned mode.
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function LexerPushModeAction(mode) {
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LexerAction.call(this, LexerActionType.PUSH_MODE);
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this.mode = mode;
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return this;
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}
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LexerPushModeAction.prototype = Object.create(LexerAction.prototype);
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LexerPushModeAction.prototype.constructor = LexerPushModeAction;
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// <p>This action is implemented by calling {@link Lexer//pushMode} with the
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// value provided by {@link //getMode}.</p>
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LexerPushModeAction.prototype.execute = function(lexer) {
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lexer.pushMode(this.mode);
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};
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LexerPushModeAction.prototype.updateHashCode = function(hash) {
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hash.update(this.actionType, this.mode);
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};
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LexerPushModeAction.prototype.equals = function(other) {
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if (this === other) {
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return true;
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} else if (! (other instanceof LexerPushModeAction)) {
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return false;
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} else {
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return this.mode === other.mode;
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execute(lexer) {
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lexer.type = this.type;
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}
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};
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LexerPushModeAction.prototype.toString = function() {
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return "pushMode(" + this.mode + ")";
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};
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updateHashCode(hash) {
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hash.update(this.actionType, this.type);
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}
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equals(other) {
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if(this === other) {
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return true;
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} else if (! (other instanceof LexerTypeAction)) {
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return false;
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} else {
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return this.type === other.type;
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}
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}
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// Implements the {@code popMode} lexer action by calling {@link Lexer//popMode}.
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//
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// <p>The {@code popMode} command does not have any parameters, so this action is
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// implemented as a singleton instance exposed by {@link //INSTANCE}.</p>
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function LexerPopModeAction() {
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LexerAction.call(this,LexerActionType.POP_MODE);
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return this;
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toString() {
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return "type(" + this.type + ")";
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}
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}
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LexerPopModeAction.prototype = Object.create(LexerAction.prototype);
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LexerPopModeAction.prototype.constructor = LexerPopModeAction;
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/**
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* Implements the {@code pushMode} lexer action by calling
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* {@link Lexer//pushMode} with the assigned mode
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*/
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class LexerPushModeAction extends LexerAction {
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constructor(mode) {
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super(LexerActionType.PUSH_MODE);
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this.mode = mode;
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}
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/**
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* <p>This action is implemented by calling {@link Lexer//pushMode} with the
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* value provided by {@link //getMode}.</p>
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*/
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execute(lexer) {
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lexer.pushMode(this.mode);
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}
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updateHashCode(hash) {
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hash.update(this.actionType, this.mode);
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}
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equals(other) {
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if (this === other) {
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return true;
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} else if (! (other instanceof LexerPushModeAction)) {
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return false;
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} else {
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return this.mode === other.mode;
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}
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}
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toString() {
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return "pushMode(" + this.mode + ")";
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}
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}
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/**
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* Implements the {@code popMode} lexer action by calling {@link Lexer//popMode}.
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*
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* <p>The {@code popMode} command does not have any parameters, so this action is
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* implemented as a singleton instance exposed by {@link //INSTANCE}.</p>
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*/
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class LexerPopModeAction extends LexerAction {
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constructor() {
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super(LexerActionType.POP_MODE);
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}
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/**
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* <p>This action is implemented by calling {@link Lexer//popMode}.</p>
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*/
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execute(lexer) {
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lexer.popMode();
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}
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toString() {
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return "popMode";
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}
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}
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LexerPopModeAction.INSTANCE = new LexerPopModeAction();
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// <p>This action is implemented by calling {@link Lexer//popMode}.</p>
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LexerPopModeAction.prototype.execute = function(lexer) {
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lexer.popMode();
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};
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/**
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* Implements the {@code more} lexer action by calling {@link Lexer//more}.
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*
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* <p>The {@code more} command does not have any parameters, so this action is
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* implemented as a singleton instance exposed by {@link //INSTANCE}.</p>
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*/
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class LexerMoreAction extends LexerAction {
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constructor() {
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super(LexerActionType.MORE);
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}
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LexerPopModeAction.prototype.toString = function() {
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return "popMode";
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};
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/**
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* <p>This action is implemented by calling {@link Lexer//popMode}.</p>
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*/
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execute(lexer) {
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lexer.more();
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}
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// Implements the {@code more} lexer action by calling {@link Lexer//more}.
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//
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// <p>The {@code more} command does not have any parameters, so this action is
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// implemented as a singleton instance exposed by {@link //INSTANCE}.</p>
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function LexerMoreAction() {
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LexerAction.call(this, LexerActionType.MORE);
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return this;
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toString() {
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return "more";
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}
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}
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LexerMoreAction.prototype = Object.create(LexerAction.prototype);
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LexerMoreAction.prototype.constructor = LexerMoreAction;
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LexerMoreAction.INSTANCE = new LexerMoreAction();
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// <p>This action is implemented by calling {@link Lexer//popMode}.</p>
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LexerMoreAction.prototype.execute = function(lexer) {
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lexer.more();
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};
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LexerMoreAction.prototype.toString = function() {
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return "more";
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};
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/**
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* Implements the {@code mode} lexer action by calling {@link Lexer//mode} with
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* the assigned mode
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*/
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class LexerModeAction extends LexerAction {
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constructor(mode) {
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super(LexerActionType.MODE);
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this.mode = mode;
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}
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/**
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* <p>This action is implemented by calling {@link Lexer//mode} with the
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* value provided by {@link //getMode}.</p>
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*/
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execute(lexer) {
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lexer.mode(this.mode);
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}
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// Implements the {@code mode} lexer action by calling {@link Lexer//mode} with
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// the assigned mode.
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function LexerModeAction(mode) {
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LexerAction.call(this, LexerActionType.MODE);
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this.mode = mode;
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return this;
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updateHashCode(hash) {
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hash.update(this.actionType, this.mode);
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}
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equals(other) {
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if (this === other) {
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return true;
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} else if (! (other instanceof LexerModeAction)) {
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return false;
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} else {
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return this.mode === other.mode;
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}
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}
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toString() {
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return "mode(" + this.mode + ")";
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}
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}
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LexerModeAction.prototype = Object.create(LexerAction.prototype);
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LexerModeAction.prototype.constructor = LexerModeAction;
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// <p>This action is implemented by calling {@link Lexer//mode} with the
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// value provided by {@link //getMode}.</p>
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LexerModeAction.prototype.execute = function(lexer) {
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lexer.mode(this.mode);
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};
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LexerModeAction.prototype.updateHashCode = function(hash) {
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hash.update(this.actionType, this.mode);
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};
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LexerModeAction.prototype.equals = function(other) {
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if (this === other) {
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return true;
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} else if (! (other instanceof LexerModeAction)) {
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return false;
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} else {
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return this.mode === other.mode;
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/**
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* Executes a custom lexer action by calling {@link Recognizer//action} with the
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* rule and action indexes assigned to the custom action. The implementation of
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* a custom action is added to the generated code for the lexer in an override
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* of {@link Recognizer//action} when the grammar is compiled.
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*
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* <p>This class may represent embedded actions created with the <code>{...}</code>
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* syntax in ANTLR 4, as well as actions created for lexer commands where the
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* command argument could not be evaluated when the grammar was compiled.</p>
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*/
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class LexerCustomAction extends LexerAction {
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/**
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* Constructs a custom lexer action with the specified rule and action
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* indexes.
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*
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* @param ruleIndex The rule index to use for calls to
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* {@link Recognizer//action}.
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* @param actionIndex The action index to use for calls to
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* {@link Recognizer//action}.
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*/
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constructor(ruleIndex, actionIndex) {
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super(LexerActionType.CUSTOM);
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this.ruleIndex = ruleIndex;
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this.actionIndex = actionIndex;
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this.isPositionDependent = true;
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}
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};
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LexerModeAction.prototype.toString = function() {
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return "mode(" + this.mode + ")";
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};
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/**
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* <p>Custom actions are implemented by calling {@link Lexer//action} with the
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* appropriate rule and action indexes.</p>
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*/
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execute(lexer) {
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lexer.action(null, this.ruleIndex, this.actionIndex);
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}
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// Executes a custom lexer action by calling {@link Recognizer//action} with the
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// rule and action indexes assigned to the custom action. The implementation of
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// a custom action is added to the generated code for the lexer in an override
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// of {@link Recognizer//action} when the grammar is compiled.
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//
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// <p>This class may represent embedded actions created with the <code>{...}</code>
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// syntax in ANTLR 4, as well as actions created for lexer commands where the
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// command argument could not be evaluated when the grammar was compiled.</p>
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updateHashCode(hash) {
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hash.update(this.actionType, this.ruleIndex, this.actionIndex);
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}
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// Constructs a custom lexer action with the specified rule and action
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// indexes.
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//
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// @param ruleIndex The rule index to use for calls to
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// {@link Recognizer//action}.
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// @param actionIndex The action index to use for calls to
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// {@link Recognizer//action}.
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function LexerCustomAction(ruleIndex, actionIndex) {
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LexerAction.call(this, LexerActionType.CUSTOM);
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this.ruleIndex = ruleIndex;
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this.actionIndex = actionIndex;
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this.isPositionDependent = true;
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return this;
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equals(other) {
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if (this === other) {
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return true;
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} else if (! (other instanceof LexerCustomAction)) {
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return false;
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} else {
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return this.ruleIndex === other.ruleIndex && this.actionIndex === other.actionIndex;
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}
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}
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}
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LexerCustomAction.prototype = Object.create(LexerAction.prototype);
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LexerCustomAction.prototype.constructor = LexerCustomAction;
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// <p>Custom actions are implemented by calling {@link Lexer//action} with the
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// appropriate rule and action indexes.</p>
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LexerCustomAction.prototype.execute = function(lexer) {
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lexer.action(null, this.ruleIndex, this.actionIndex);
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};
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LexerCustomAction.prototype.updateHashCode = function(hash) {
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hash.update(this.actionType, this.ruleIndex, this.actionIndex);
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};
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LexerCustomAction.prototype.equals = function(other) {
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if (this === other) {
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return true;
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} else if (! (other instanceof LexerCustomAction)) {
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return false;
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} else {
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return this.ruleIndex === other.ruleIndex && this.actionIndex === other.actionIndex;
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/**
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* Implements the {@code channel} lexer action by calling
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* {@link Lexer//setChannel} with the assigned channel.
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* Constructs a new {@code channel} action with the specified channel value.
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* @param channel The channel value to pass to {@link Lexer//setChannel}
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*/
|
||||
class LexerChannelAction extends LexerAction {
|
||||
constructor(channel) {
|
||||
super(LexerActionType.CHANNEL);
|
||||
this.channel = channel;
|
||||
}
|
||||
};
|
||||
|
||||
// Implements the {@code channel} lexer action by calling
|
||||
// {@link Lexer//setChannel} with the assigned channel.
|
||||
// Constructs a new {@code channel} action with the specified channel value.
|
||||
// @param channel The channel value to pass to {@link Lexer//setChannel}.
|
||||
function LexerChannelAction(channel) {
|
||||
LexerAction.call(this, LexerActionType.CHANNEL);
|
||||
this.channel = channel;
|
||||
return this;
|
||||
/**
|
||||
* <p>This action is implemented by calling {@link Lexer//setChannel} with the
|
||||
* value provided by {@link //getChannel}.</p>
|
||||
*/
|
||||
execute(lexer) {
|
||||
lexer._channel = this.channel;
|
||||
}
|
||||
|
||||
updateHashCode(hash) {
|
||||
hash.update(this.actionType, this.channel);
|
||||
}
|
||||
|
||||
equals(other) {
|
||||
if (this === other) {
|
||||
return true;
|
||||
} else if (! (other instanceof LexerChannelAction)) {
|
||||
return false;
|
||||
} else {
|
||||
return this.channel === other.channel;
|
||||
}
|
||||
}
|
||||
|
||||
toString() {
|
||||
return "channel(" + this.channel + ")";
|
||||
}
|
||||
}
|
||||
|
||||
LexerChannelAction.prototype = Object.create(LexerAction.prototype);
|
||||
LexerChannelAction.prototype.constructor = LexerChannelAction;
|
||||
|
||||
// <p>This action is implemented by calling {@link Lexer//setChannel} with the
|
||||
// value provided by {@link //getChannel}.</p>
|
||||
LexerChannelAction.prototype.execute = function(lexer) {
|
||||
lexer._channel = this.channel;
|
||||
};
|
||||
|
||||
LexerChannelAction.prototype.updateHashCode = function(hash) {
|
||||
hash.update(this.actionType, this.channel);
|
||||
};
|
||||
|
||||
LexerChannelAction.prototype.equals = function(other) {
|
||||
if (this === other) {
|
||||
return true;
|
||||
} else if (! (other instanceof LexerChannelAction)) {
|
||||
return false;
|
||||
} else {
|
||||
return this.channel === other.channel;
|
||||
/**
|
||||
* This implementation of {@link LexerAction} is used for tracking input offsets
|
||||
* for position-dependent actions within a {@link LexerActionExecutor}.
|
||||
*
|
||||
* <p>This action is not serialized as part of the ATN, and is only required for
|
||||
* position-dependent lexer actions which appear at a location other than the
|
||||
* end of a rule. For more information about DFA optimizations employed for
|
||||
* lexer actions, see {@link LexerActionExecutor//append} and
|
||||
* {@link LexerActionExecutor//fixOffsetBeforeMatch}.</p>
|
||||
*
|
||||
* Constructs a new indexed custom action by associating a character offset
|
||||
* with a {@link LexerAction}.
|
||||
*
|
||||
* <p>Note: This class is only required for lexer actions for which
|
||||
* {@link LexerAction//isPositionDependent} returns {@code true}.</p>
|
||||
*
|
||||
* @param offset The offset into the input {@link CharStream}, relative to
|
||||
* the token start index, at which the specified lexer action should be
|
||||
* executed.
|
||||
* @param action The lexer action to execute at a particular offset in the
|
||||
* input {@link CharStream}.
|
||||
*/
|
||||
class LexerIndexedCustomAction extends LexerAction {
|
||||
constructor(offset, action) {
|
||||
super(action.actionType);
|
||||
this.offset = offset;
|
||||
this.action = action;
|
||||
this.isPositionDependent = true;
|
||||
}
|
||||
};
|
||||
|
||||
LexerChannelAction.prototype.toString = function() {
|
||||
return "channel(" + this.channel + ")";
|
||||
};
|
||||
/**
|
||||
* <p>This method calls {@link //execute} on the result of {@link //getAction}
|
||||
* using the provided {@code lexer}.</p>
|
||||
*/
|
||||
execute(lexer) {
|
||||
// assume the input stream position was properly set by the calling code
|
||||
this.action.execute(lexer);
|
||||
}
|
||||
|
||||
// This implementation of {@link LexerAction} is used for tracking input offsets
|
||||
// for position-dependent actions within a {@link LexerActionExecutor}.
|
||||
//
|
||||
// <p>This action is not serialized as part of the ATN, and is only required for
|
||||
// position-dependent lexer actions which appear at a location other than the
|
||||
// end of a rule. For more information about DFA optimizations employed for
|
||||
// lexer actions, see {@link LexerActionExecutor//append} and
|
||||
// {@link LexerActionExecutor//fixOffsetBeforeMatch}.</p>
|
||||
updateHashCode(hash) {
|
||||
hash.update(this.actionType, this.offset, this.action);
|
||||
}
|
||||
|
||||
// Constructs a new indexed custom action by associating a character offset
|
||||
// with a {@link LexerAction}.
|
||||
//
|
||||
// <p>Note: This class is only required for lexer actions for which
|
||||
// {@link LexerAction//isPositionDependent} returns {@code true}.</p>
|
||||
//
|
||||
// @param offset The offset into the input {@link CharStream}, relative to
|
||||
// the token start index, at which the specified lexer action should be
|
||||
// executed.
|
||||
// @param action The lexer action to execute at a particular offset in the
|
||||
// input {@link CharStream}.
|
||||
function LexerIndexedCustomAction(offset, action) {
|
||||
LexerAction.call(this, action.actionType);
|
||||
this.offset = offset;
|
||||
this.action = action;
|
||||
this.isPositionDependent = true;
|
||||
return this;
|
||||
equals(other) {
|
||||
if (this === other) {
|
||||
return true;
|
||||
} else if (! (other instanceof LexerIndexedCustomAction)) {
|
||||
return false;
|
||||
} else {
|
||||
return this.offset === other.offset && this.action === other.action;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
LexerIndexedCustomAction.prototype = Object.create(LexerAction.prototype);
|
||||
LexerIndexedCustomAction.prototype.constructor = LexerIndexedCustomAction;
|
||||
|
||||
// <p>This method calls {@link //execute} on the result of {@link //getAction}
|
||||
// using the provided {@code lexer}.</p>
|
||||
LexerIndexedCustomAction.prototype.execute = function(lexer) {
|
||||
// assume the input stream position was properly set by the calling code
|
||||
this.action.execute(lexer);
|
||||
};
|
||||
|
||||
LexerIndexedCustomAction.prototype.updateHashCode = function(hash) {
|
||||
hash.update(this.actionType, this.offset, this.action);
|
||||
};
|
||||
|
||||
LexerIndexedCustomAction.prototype.equals = function(other) {
|
||||
if (this === other) {
|
||||
return true;
|
||||
} else if (! (other instanceof LexerIndexedCustomAction)) {
|
||||
return false;
|
||||
} else {
|
||||
return this.offset === other.offset && this.action === other.action;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
exports.LexerActionType = LexerActionType;
|
||||
exports.LexerSkipAction = LexerSkipAction;
|
||||
exports.LexerChannelAction = LexerChannelAction;
|
||||
exports.LexerCustomAction = LexerCustomAction;
|
||||
exports.LexerIndexedCustomAction = LexerIndexedCustomAction;
|
||||
exports.LexerMoreAction = LexerMoreAction;
|
||||
exports.LexerTypeAction = LexerTypeAction;
|
||||
exports.LexerPushModeAction = LexerPushModeAction;
|
||||
exports.LexerPopModeAction = LexerPopModeAction;
|
||||
exports.LexerModeAction = LexerModeAction;
|
||||
module.exports = {
|
||||
LexerActionType,
|
||||
LexerSkipAction,
|
||||
LexerChannelAction,
|
||||
LexerCustomAction,
|
||||
LexerIndexedCustomAction,
|
||||
LexerMoreAction,
|
||||
LexerTypeAction,
|
||||
LexerPushModeAction,
|
||||
LexerPopModeAction,
|
||||
LexerModeAction
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue