99 lines
2.5 KiB
JavaScript
99 lines
2.5 KiB
JavaScript
/**
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* Dump information about parser events to the console.
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*
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* @module plugins/eventDumper
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*/
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const _ = require('underscore');
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const doop = require('jsdoc/util/doop');
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const dump = require('jsdoc/util/dumper').dump;
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const env = require('jsdoc/env');
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const util = require('util');
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const conf = env.conf.eventDumper || {};
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// Dump the included parser events (defaults to all events)
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let events = conf.include || [
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'parseBegin',
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'fileBegin',
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'beforeParse',
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'jsdocCommentFound',
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'symbolFound',
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'newDoclet',
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'fileComplete',
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'parseComplete',
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'processingComplete'
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];
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// Don't dump the excluded parser events
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if (conf.exclude) {
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events = _.difference(events, conf.exclude);
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}
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/**
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* Replace AST node objects in events with a placeholder.
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*
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* @param {Object} o - An object whose properties may contain AST node objects.
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* @return {Object} The modified object.
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*/
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function replaceNodeObjects(o) {
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const OBJECT_PLACEHOLDER = '<Object>';
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if (o.code && o.code.node) {
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// don't break the original object!
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o.code = doop(o.code);
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o.code.node = OBJECT_PLACEHOLDER;
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}
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if (o.doclet && o.doclet.meta && o.doclet.meta.code && o.doclet.meta.code.node) {
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// don't break the original object!
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o.doclet.meta.code = doop(o.doclet.meta.code);
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o.doclet.meta.code.node = OBJECT_PLACEHOLDER;
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}
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if (o.astnode) {
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o.astnode = OBJECT_PLACEHOLDER;
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}
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return o;
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}
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/**
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* Get rid of unwanted crud in an event object.
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*
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* @param {object} e The event object.
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* @return {object} The fixed-up object.
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*/
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function cleanse(e) {
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let result = {};
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Object.keys(e).forEach(prop => {
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// by default, don't stringify properties that contain an array of functions
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if (!conf.includeFunctions && util.isArray(e[prop]) && e[prop][0] &&
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String(typeof e[prop][0]) === 'function') {
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result[prop] = `function[${e[prop].length}]`;
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}
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// never include functions that belong to the object
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else if (typeof e[prop] !== 'function') {
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result[prop] = e[prop];
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}
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});
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// allow users to omit node objects, which can be enormous
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if (conf.omitNodes) {
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result = replaceNodeObjects(result);
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}
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return result;
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}
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exports.handlers = {};
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events.forEach(eventType => {
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exports.handlers[eventType] = e => {
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console.log( dump({
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type: eventType,
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content: cleanse(e)
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}) );
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};
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});
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