proc_macro/lib/tokens/literal.js

A JavaScript implementation of proc_macros.

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var token_1 = __importDefault(require("./token"));
/**
 * A value (string, number).
 */
var Literal = /** @class */ (function (_super) {
    __extends(Literal, _super);
    function Literal(value, type) {
        var _this = _super.call(this) || this;
        _this.value = value;
        _this.type = type;
        return _this;
    }
    Literal.prototype.eq = function (other) {
        if (other instanceof Literal) {
            return other.value === this.value && other.type === this.type;
        }
        return false;
    };
    Literal.tokenize = function (token_string) {
        var pointer = 0;
        var type;
        var tokens = token_string[pointer];
        if (/\d/.test(tokens)) {
            type = 'number';
            while (pointer < token_string.length && /^\d+?\.{0,1}\d*?$/.test(tokens)) {
                tokens += token_string[++pointer];
            }
        }
        else if (tokens === '"' || tokens === "'") {
            type = 'string';
            var matching_token = tokens;
            while (pointer < token_string.length && token_string[++pointer] != matching_token) { }
            ;
            pointer++;
        }
        else {
            throw Error("Next token is not a literal.");
        }
        return [new Literal(token_string.substring(0, pointer), type), token_string.substring(pointer)];
    };
    Literal.prototype.toParenthesisString = function () {
        return "(Literal " + this.type + " " + this.value + ")";
    };
    Literal.prototype.toJavaScript = function () {
        return this.value + " ";
    };
    return Literal;
}(token_1.default));
exports.default = Literal;
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