chevrotain
Version:
Chevrotain is a high performance fault tolerant javascript parsing DSL for building recursive decent parsers
243 lines • 8.27 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var utils_1 = require("../../../utils/utils");
var tokens_public_1 = require("../../../scan/tokens_public");
var AbstractProduction = /** @class */ (function () {
function AbstractProduction(definition) {
this.definition = definition;
}
AbstractProduction.prototype.accept = function (visitor) {
visitor.visit(this);
utils_1.forEach(this.definition, function (prod) {
prod.accept(visitor);
});
};
return AbstractProduction;
}());
exports.AbstractProduction = AbstractProduction;
var NonTerminal = /** @class */ (function (_super) {
__extends(NonTerminal, _super);
function NonTerminal(options) {
var _this = _super.call(this, []) || this;
_this.idx = 1;
utils_1.assign(_this, options);
return _this;
}
Object.defineProperty(NonTerminal.prototype, "definition", {
get: function () {
if (this.referencedRule !== undefined) {
return this.referencedRule.definition;
}
return [];
},
set: function (definition) {
// immutable
},
enumerable: true,
configurable: true
});
NonTerminal.prototype.accept = function (visitor) {
visitor.visit(this);
// don't visit children of a reference, we will get cyclic infinite loops if we do so
};
return NonTerminal;
}(AbstractProduction));
exports.NonTerminal = NonTerminal;
var Rule = /** @class */ (function (_super) {
__extends(Rule, _super);
function Rule(options) {
var _this = _super.call(this, options.definition) || this;
_this.orgText = "";
utils_1.assign(_this, options);
return _this;
}
return Rule;
}(AbstractProduction));
exports.Rule = Rule;
var Flat = /** @class */ (function (_super) {
__extends(Flat, _super);
// A named Flat production is used to indicate a Nested Rule in an alternation
function Flat(options) {
var _this = _super.call(this, options.definition) || this;
utils_1.assign(_this, options);
return _this;
}
return Flat;
}(AbstractProduction));
exports.Flat = Flat;
var Option = /** @class */ (function (_super) {
__extends(Option, _super);
function Option(options) {
var _this = _super.call(this, options.definition) || this;
_this.idx = 1;
utils_1.assign(_this, options);
return _this;
}
return Option;
}(AbstractProduction));
exports.Option = Option;
var RepetitionMandatory = /** @class */ (function (_super) {
__extends(RepetitionMandatory, _super);
function RepetitionMandatory(options) {
var _this = _super.call(this, options.definition) || this;
_this.idx = 1;
utils_1.assign(_this, options);
return _this;
}
return RepetitionMandatory;
}(AbstractProduction));
exports.RepetitionMandatory = RepetitionMandatory;
var RepetitionMandatoryWithSeparator = /** @class */ (function (_super) {
__extends(RepetitionMandatoryWithSeparator, _super);
function RepetitionMandatoryWithSeparator(options) {
var _this = _super.call(this, options.definition) || this;
_this.idx = 1;
utils_1.assign(_this, options);
return _this;
}
return RepetitionMandatoryWithSeparator;
}(AbstractProduction));
exports.RepetitionMandatoryWithSeparator = RepetitionMandatoryWithSeparator;
var Repetition = /** @class */ (function (_super) {
__extends(Repetition, _super);
function Repetition(options) {
var _this = _super.call(this, options.definition) || this;
_this.idx = 1;
utils_1.assign(_this, options);
return _this;
}
return Repetition;
}(AbstractProduction));
exports.Repetition = Repetition;
var RepetitionWithSeparator = /** @class */ (function (_super) {
__extends(RepetitionWithSeparator, _super);
function RepetitionWithSeparator(options) {
var _this = _super.call(this, options.definition) || this;
_this.idx = 1;
utils_1.assign(_this, options);
return _this;
}
return RepetitionWithSeparator;
}(AbstractProduction));
exports.RepetitionWithSeparator = RepetitionWithSeparator;
var Alternation = /** @class */ (function (_super) {
__extends(Alternation, _super);
function Alternation(options) {
var _this = _super.call(this, options.definition) || this;
_this.idx = 1;
utils_1.assign(_this, options);
return _this;
}
return Alternation;
}(AbstractProduction));
exports.Alternation = Alternation;
var Terminal = /** @class */ (function () {
function Terminal(options) {
this.idx = 1;
utils_1.assign(this, options);
}
Terminal.prototype.accept = function (visitor) {
visitor.visit(this);
};
return Terminal;
}());
exports.Terminal = Terminal;
function serializeGrammar(topRules) {
return utils_1.map(topRules, serializeProduction);
}
exports.serializeGrammar = serializeGrammar;
function serializeProduction(node) {
function convertDefinition(definition) {
return utils_1.map(definition, serializeProduction);
}
if (node instanceof NonTerminal) {
return {
type: "NonTerminal",
name: node.nonTerminalName,
idx: node.idx
};
}
else if (node instanceof Flat) {
return {
type: "Flat",
definition: convertDefinition(node.definition)
};
}
else if (node instanceof Option) {
return {
type: "Option",
definition: convertDefinition(node.definition)
};
}
else if (node instanceof RepetitionMandatory) {
return {
type: "RepetitionMandatory",
definition: convertDefinition(node.definition)
};
}
else if (node instanceof RepetitionMandatoryWithSeparator) {
return {
type: "RepetitionMandatoryWithSeparator",
separator: serializeProduction(new Terminal({ terminalType: node.separator })),
definition: convertDefinition(node.definition)
};
}
else if (node instanceof RepetitionWithSeparator) {
return {
type: "RepetitionWithSeparator",
separator: serializeProduction(new Terminal({ terminalType: node.separator })),
definition: convertDefinition(node.definition)
};
}
else if (node instanceof Repetition) {
return {
type: "Repetition",
definition: convertDefinition(node.definition)
};
}
else if (node instanceof Alternation) {
return {
type: "Alternation",
definition: convertDefinition(node.definition)
};
}
else if (node instanceof Terminal) {
var serializedTerminal = {
type: "Terminal",
name: tokens_public_1.tokenName(node.terminalType),
label: tokens_public_1.tokenLabel(node.terminalType),
idx: node.idx
};
var pattern = node.terminalType.PATTERN;
if (node.terminalType.PATTERN) {
serializedTerminal.pattern = utils_1.isRegExp(pattern)
? pattern.source
: pattern;
}
return serializedTerminal;
}
else if (node instanceof Rule) {
// IGNORE ABOVE ELSE
return {
type: "Rule",
name: node.name,
definition: convertDefinition(node.definition)
};
}
else {
/* istanbul ignore next */
throw Error("non exhaustive match");
}
}
exports.serializeProduction = serializeProduction;
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