cucumber-expressions
Version:
Cucumber Expressions - a simpler alternative to Regular Expressions
42 lines • 2.19 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var GeneratedExpression_1 = __importDefault(require("./GeneratedExpression"));
// 256 generated expressions ought to be enough for anybody
var MAX_EXPRESSIONS = 256;
var CombinatorialGeneratedExpressionFactory = /** @class */ (function () {
function CombinatorialGeneratedExpressionFactory(expressionTemplate, parameterTypeCombinations) {
this.expressionTemplate = expressionTemplate;
this.parameterTypeCombinations = parameterTypeCombinations;
this.expressionTemplate = expressionTemplate;
}
CombinatorialGeneratedExpressionFactory.prototype.generateExpressions = function () {
var generatedExpressions = [];
this.generatePermutations(generatedExpressions, 0, []);
return generatedExpressions;
};
CombinatorialGeneratedExpressionFactory.prototype.generatePermutations = function (generatedExpressions, depth, currentParameterTypes) {
if (generatedExpressions.length >= MAX_EXPRESSIONS) {
return;
}
if (depth === this.parameterTypeCombinations.length) {
generatedExpressions.push(new GeneratedExpression_1.default(this.expressionTemplate, currentParameterTypes));
return;
}
// tslint:disable-next-line:prefer-for-of
for (var i = 0; i < this.parameterTypeCombinations[depth].length; ++i) {
// Avoid recursion if no elements can be added.
if (generatedExpressions.length >= MAX_EXPRESSIONS) {
return;
}
var newCurrentParameterTypes = currentParameterTypes.slice(); // clone
newCurrentParameterTypes.push(this.parameterTypeCombinations[depth][i]);
this.generatePermutations(generatedExpressions, depth + 1, newCurrentParameterTypes);
}
};
return CombinatorialGeneratedExpressionFactory;
}());
exports.default = CombinatorialGeneratedExpressionFactory;
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