consys/dsl/Token.js

consys is a flexible tool to evaluate models using generic and readable constraints.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.TokenType = void 0;
/**
 * All possible words of the dsl.
 */
var TokenType;
(function (TokenType) {
    // single character tokens
    TokenType[TokenType["PARENTHESIS_OPEN"] = 0] = "PARENTHESIS_OPEN";
    TokenType[TokenType["PARENTHESIS_CLOSE"] = 1] = "PARENTHESIS_CLOSE";
    TokenType[TokenType["PLUS"] = 2] = "PLUS";
    TokenType[TokenType["MINUS"] = 3] = "MINUS";
    TokenType[TokenType["COMMA"] = 4] = "COMMA";
    TokenType[TokenType["DOT"] = 5] = "DOT";
    TokenType[TokenType["COLON"] = 6] = "COLON";
    TokenType[TokenType["SLASH"] = 7] = "SLASH";
    TokenType[TokenType["STAR"] = 8] = "STAR";
    TokenType[TokenType["PERCENT"] = 9] = "PERCENT";
    TokenType[TokenType["DOLLAR"] = 10] = "DOLLAR";
    TokenType[TokenType["HASH"] = 11] = "HASH";
    // single or double character tokens
    TokenType[TokenType["EXCLAMATION_MARK"] = 12] = "EXCLAMATION_MARK";
    TokenType[TokenType["EXCLAMATION_MARK_EQUAL"] = 13] = "EXCLAMATION_MARK_EQUAL";
    TokenType[TokenType["EQUAL_EQUAL"] = 14] = "EQUAL_EQUAL";
    TokenType[TokenType["GREATER"] = 15] = "GREATER";
    TokenType[TokenType["GREATER_EQUAL"] = 16] = "GREATER_EQUAL";
    TokenType[TokenType["LESS"] = 17] = "LESS";
    TokenType[TokenType["LESS_EQUAL"] = 18] = "LESS_EQUAL";
    TokenType[TokenType["PIPE_PIPE"] = 19] = "PIPE_PIPE";
    TokenType[TokenType["AMPERSAND_AMPERSAND"] = 20] = "AMPERSAND_AMPERSAND";
    // literals
    TokenType[TokenType["IDENTIFIER"] = 21] = "IDENTIFIER";
    TokenType[TokenType["STRING"] = 22] = "STRING";
    TokenType[TokenType["NUMBER"] = 23] = "NUMBER";
    // keywords
    TokenType[TokenType["ALWAYS"] = 24] = "ALWAYS";
    TokenType[TokenType["WHEN"] = 25] = "WHEN";
    TokenType[TokenType["THEN"] = 26] = "THEN";
    TokenType[TokenType["IF"] = 27] = "IF";
    TokenType[TokenType["AND"] = 28] = "AND";
    TokenType[TokenType["OR"] = 29] = "OR";
    TokenType[TokenType["NOT"] = 30] = "NOT";
    // other
    TokenType[TokenType["EOF"] = 31] = "EOF";
})(TokenType = exports.TokenType || (exports.TokenType = {}));
/**
 * Represents a word of the dsl.
 */
class Token {
    /**
     * Creates a new token from data.
     *
     * @param type token type
     * @param lexeme token source
     * @param literal token value
     * @param position token position
     */
    constructor(type, lexeme, literal, position) {
        this.type = type;
        this.lexeme = lexeme;
        this.literal = literal;
        this.position = position;
    }
    /**
     * Returns the string representation of this token.
     */
    toString() {
        return '([' + TokenType[this.type] + '] ' + "'" + this.lexeme + "'" + ')';
    }
}
exports.default = Token;