position-strings/build/commonjs/util.js

Lexicographically-ordered position strings for collaborative lists and text

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.LastInternal = exports.assert = exports.precond = void 0;
function precond(statement, message, ...optionalParams) {
    if (!statement) {
        if (optionalParams.length === 0) {
            throw new Error(message);
        }
        else {
            throw new Error(message + " " + optionalParams.map((value) => String(value)).join(" "));
        }
    }
}
exports.precond = precond;
function assert(statement, message, ...optionalParams) {
    if (!statement) {
        if (message === undefined) {
            precond(statement, "Assertion failed", ...optionalParams);
        }
        else {
            precond(statement, "Assertion failed: " + message, ...optionalParams);
        }
    }
}
exports.assert = assert;
/**
 * [[PositionSource.LAST]] copy that avoids circular dependencies
 * (PositionSource <-> IDs).
 */
exports.LastInternal = "~";
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