1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677
'use strict';
// --------------------------------------------------------------------// Imports// --------------------------------------------------------------------
const common = require('./common');const errors = require('./errors');const pexprs = require('./pexprs-main');
// --------------------------------------------------------------------// Operations// --------------------------------------------------------------------
pexprs.PExpr.prototype.assertChoicesHaveUniformArity = common.abstract(    'assertChoicesHaveUniformArity');
pexprs.any.assertChoicesHaveUniformArity =  pexprs.end.assertChoicesHaveUniformArity =  pexprs.Terminal.prototype.assertChoicesHaveUniformArity =  pexprs.Range.prototype.assertChoicesHaveUniformArity =  pexprs.Param.prototype.assertChoicesHaveUniformArity =  pexprs.Lex.prototype.assertChoicesHaveUniformArity =  pexprs.UnicodeChar.prototype.assertChoicesHaveUniformArity =    function(ruleName) {      // no-op    };
pexprs.Alt.prototype.assertChoicesHaveUniformArity = function(ruleName) {  if (this.terms.length === 0) {    return;  }  const arity = this.terms[0].getArity();  for (let idx = 0; idx < this.terms.length; idx++) {    const term = this.terms[idx];    term.assertChoicesHaveUniformArity();    const otherArity = term.getArity();    if (arity !== otherArity) {      throw errors.inconsistentArity(ruleName, arity, otherArity, term);    }  }};
pexprs.Extend.prototype.assertChoicesHaveUniformArity = function(ruleName) {  // Extend is a special case of Alt that's guaranteed to have exactly two  // cases: [extensions, origBody].  const actualArity = this.terms[0].getArity();  const expectedArity = this.terms[1].getArity();  if (actualArity !== expectedArity) {    throw errors.inconsistentArity(ruleName, expectedArity, actualArity, this.terms[0]);  }};
pexprs.Seq.prototype.assertChoicesHaveUniformArity = function(ruleName) {  for (let idx = 0; idx < this.factors.length; idx++) {    this.factors[idx].assertChoicesHaveUniformArity(ruleName);  }};
pexprs.Iter.prototype.assertChoicesHaveUniformArity = function(ruleName) {  this.expr.assertChoicesHaveUniformArity(ruleName);};
pexprs.Not.prototype.assertChoicesHaveUniformArity = function(ruleName) {  // no-op (not required b/c the nested expr doesn't show up in the CST)};
pexprs.Lookahead.prototype.assertChoicesHaveUniformArity = function(ruleName) {  this.expr.assertChoicesHaveUniformArity(ruleName);};
pexprs.Apply.prototype.assertChoicesHaveUniformArity = function(ruleName) {  // The arities of the parameter expressions is required to be 1 by  // `assertAllApplicationsAreValid()`.};