87 lines
2.2 KiB
JavaScript
87 lines
2.2 KiB
JavaScript
'use strict';
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/*
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this seems to be not only shorter, but faster than
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string.replace(/\\/g, '\\\\').
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replace(/\u0008/g, '\\b').
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replace(/\t/g, '\\t').
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replace(/\n/g, '\\n').
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replace(/\f/g, '\\f').
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replace(/\r/g, '\\r').
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replace(/'/g, '\\\'').
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replace(/"/g, '\\"');
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or string.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&")
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see http://jsperf.com/string-escape-regexp-vs-json-stringify
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*/
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function srcEscape(str) {
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return JSON.stringify({
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[str]: 1,
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}).slice(1, -3);
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}
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exports.srcEscape = srcEscape;
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let highlightFn;
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let cardinalRecommended = false;
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try {
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// the purpose of this is to prevent projects using Webpack from displaying a warning during runtime if cardinal is not a dependency
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const REQUIRE_TERMINATOR = '';
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highlightFn = require(`cardinal${REQUIRE_TERMINATOR}`).highlight;
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} catch (err) {
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highlightFn = (text) => {
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if (!cardinalRecommended) {
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// eslint-disable-next-line no-console
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console.log('For nicer debug output consider install cardinal@^2.0.0');
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cardinalRecommended = true;
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}
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return text;
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};
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}
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/**
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* Prints debug message with code frame, will try to use `cardinal` if available.
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*/
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function printDebugWithCode(msg, code) {
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// eslint-disable-next-line no-console
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console.log(`\n\n${msg}:\n`);
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// eslint-disable-next-line no-console
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console.log(`${highlightFn(code)}\n`);
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}
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exports.printDebugWithCode = printDebugWithCode;
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/**
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* checks whether the `type` is in the `list`
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*/
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function typeMatch(type, list, Types) {
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if (Array.isArray(list)) {
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return list.some((t) => type === Types[t]);
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}
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return !!list;
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}
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exports.typeMatch = typeMatch;
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const privateObjectProps = new Set([
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'__defineGetter__',
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'__defineSetter__',
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'__lookupGetter__',
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'__lookupSetter__',
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'__proto__',
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]);
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exports.privateObjectProps = privateObjectProps;
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const fieldEscape = (field, isEval = true) => {
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if (privateObjectProps.has(field)) {
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throw new Error(
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`The field name (${field}) can't be the same as an object's private property.`
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);
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}
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return isEval ? srcEscape(field) : field;
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};
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exports.fieldEscape = fieldEscape;
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