parjs/src/internal/issues.ts

Library for building parsers using combinators.

import { ParserDefinitionError } from "../errors";

/** Some canned error throwers. */
export const Issues = {
    /**
     * Throws an error saying that the parser is about to enter an infinite loop.
     *
     * @param name
     */
    guardAgainstInfiniteLoop(name: string): never {
        throw new ParserDefinitionError(
            name,
            `The combinator '${name}' expected one of its arguments to change the parser state.`
        );
    },

    delayedParserNotInit(name: string): never {
        throw new ParserDefinitionError(name, `Delayed parser not initalized.`);
    },

    delayedParserAlreadyInit(): never {
        throw new ParserDefinitionError("", `Delayed parser has already been initialized`);
    }
};