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'use strict';
// --------------------------------------------------------------------// Imports// --------------------------------------------------------------------
const common = require('./common');const util = require('./util');const Interval = require('./Interval');
// --------------------------------------------------------------------// Private stuff// --------------------------------------------------------------------
function MatchResult(    matcher,    input,    startExpr,    cst,    cstOffset,    rightmostFailurePosition,    optRecordedFailures) {  this.matcher = matcher;  this.input = input;  this.startExpr = startExpr;  this._cst = cst;  this._cstOffset = cstOffset;  this._rightmostFailurePosition = rightmostFailurePosition;  this._rightmostFailures = optRecordedFailures;
  if (this.failed()) {    /* eslint-disable no-invalid-this */    common.defineLazyProperty(this, 'message', function() {      const detail = 'Expected ' + this.getExpectedText();      return (        util.getLineAndColumnMessage(this.input, this.getRightmostFailurePosition()) + detail      );    });    common.defineLazyProperty(this, 'shortMessage', function() {      const detail = 'expected ' + this.getExpectedText();      const errorInfo = util.getLineAndColumn(this.input, this.getRightmostFailurePosition());      return 'Line ' + errorInfo.lineNum + ', col ' + errorInfo.colNum + ': ' + detail;    });    /* eslint-enable no-invalid-this */  }}
MatchResult.prototype.succeeded = function() {  return !!this._cst;};
MatchResult.prototype.failed = function() {  return !this.succeeded();};
MatchResult.prototype.getRightmostFailurePosition = function() {  return this._rightmostFailurePosition;};
MatchResult.prototype.getRightmostFailures = function() {  if (!this._rightmostFailures) {    this.matcher.setInput(this.input);    const matchResultWithFailures = this.matcher._match(        this.startExpr,        false,        this.getRightmostFailurePosition()    );    this._rightmostFailures = matchResultWithFailures.getRightmostFailures();  }  return this._rightmostFailures;};
MatchResult.prototype.toString = function() {  return this.succeeded() ?    '[match succeeded]' :    '[match failed at position ' + this.getRightmostFailurePosition() + ']';};
// Return a string summarizing the expected contents of the input stream when// the match failure occurred.MatchResult.prototype.getExpectedText = function() {  if (this.succeeded()) {    throw new Error('cannot get expected text of a successful MatchResult');  }
  const sb = new common.StringBuffer();  let failures = this.getRightmostFailures();
  // Filter out the fluffy failures to make the default error messages more useful  failures = failures.filter(failure => !failure.isFluffy());
  for (let idx = 0; idx < failures.length; idx++) {    if (idx > 0) {      if (idx === failures.length - 1) {        sb.append(failures.length > 2 ? ', or ' : ' or ');      } else {        sb.append(', ');      }    }    sb.append(failures[idx].toString());  }  return sb.contents();};
MatchResult.prototype.getInterval = function() {  const pos = this.getRightmostFailurePosition();  return new Interval(this.input, pos, pos);};
// --------------------------------------------------------------------// Exports// --------------------------------------------------------------------
module.exports = MatchResult;