proc_macro/lib/tokens/punct.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 punctuation that is used in programming.
 */
var Punct = /** @class */ (function (_super) {
    __extends(Punct, _super);
    function Punct(char, spacing) {
        var _this = _super.call(this) || this;
        if (char.length !== 1)
            throw Error("FATAL ERROR: Expected punctuation to be a single character. Use the `joint` spacing if punctuation should be joint.");
        _this.char = char;
        _this.spacing = spacing;
        return _this;
    }
    Punct.prototype.eq = function (other) {
        if (other instanceof Punct) {
            return other.char === this.char && other.spacing === this.spacing;
        }
        return false;
    };
    Punct.tokenize = function (token_string) {
        var _a = [token_string.substring(0, 1), token_string.substring(1)], char = _a[0], next_token_string = _a[1];
        if (!/^[^\d\w\s\(\)\{\}\[\]\'\"\`]$/.test(char)) {
            throw Error("Next token is not a punctuation.");
        }
        var spacing = Punct.canTokenize(next_token_string) ? 'joint' : 'alone';
        return [new Punct(char, spacing), next_token_string];
    };
    Punct.prototype.toParenthesisString = function () {
        return "(Punct " + this.spacing + " '" + this.char + "')";
    };
    Punct.prototype.toJavaScript = function () {
        return this.char + ((this.spacing === 'joint') ? '' : ' ');
    };
    return Punct;
}(token_1.default));
exports.default = Punct;
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