354 lines
8.5 KiB
JavaScript
354 lines
8.5 KiB
JavaScript
/* eslint-disable strict */
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'use strict';
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const fs = require('fs');
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class JSDoclet {
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constructor(doc) {
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this.doc = doc;
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this.description = doc['description'] || '';
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this.name = doc['name'] || 'unknown';
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this.longname = doc['longname'] || '';
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this.types = [];
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if (doc['type'] && doc['type']['names']) {
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this.types = doc['type']['names'].slice();
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}
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this.type = this.types.length > 0 ? this.types.join('\\|') : '*';
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this.variable = doc['variable'] || false;
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this.kind = doc['kind'] || '';
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this.memberof = doc['memberof'] || null;
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this.scope = doc['scope'] || '';
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this.members = [];
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this.optional = doc['optional'] || false;
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this.defaultvalue = doc['defaultvalue'];
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this.summary = doc['summary'] || null;
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this.classdesc = doc['classdesc'] || null;
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// Parameters (functions)
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this.params = [];
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this.returns = doc['returns'] ? doc['returns'][0]['type']['names'][0] : 'void';
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this.returns_desc = doc['returns'] ? doc['returns'][0]['description'] : null;
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this.params = (doc['params'] || []).slice().map((p) => new JSDoclet(p));
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// Custom tags
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this.tags = doc['tags'] || [];
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this.header = this.tags.filter((t) => t['title'] === 'header').map((t) => t['text']).pop() || null;
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}
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add_member(obj) {
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this.members.push(obj);
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}
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is_static() {
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return this.scope === 'static';
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}
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is_instance() {
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return this.scope === 'instance';
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}
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is_object() {
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return this.kind === 'Object' || (this.kind === 'typedef' && this.type === 'Object');
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}
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is_class() {
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return this.kind === 'class';
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}
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is_function() {
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return this.kind === 'function' || (this.kind === 'typedef' && this.type === 'function');
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}
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is_module() {
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return this.kind === 'module';
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}
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}
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function format_table(f, data, depth = 0) {
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if (!data.length) {
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return;
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}
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const column_sizes = new Array(data[0].length).fill(0);
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data.forEach((row) => {
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row.forEach((e, idx) => {
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column_sizes[idx] = Math.max(e.length, column_sizes[idx]);
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});
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});
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const indent = ' '.repeat(depth);
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let sep = indent;
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column_sizes.forEach((size) => {
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sep += '+';
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sep += '-'.repeat(size + 2);
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});
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sep += '+\n';
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f.write(sep);
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data.forEach((row) => {
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let row_text = `${indent}|`;
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row.forEach((entry, idx) => {
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row_text += ` ${entry.padEnd(column_sizes[idx])} |`;
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});
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row_text += '\n';
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f.write(row_text);
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f.write(sep);
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});
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f.write('\n');
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}
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function make_header(header, sep) {
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return `${header}\n${sep.repeat(header.length)}\n\n`;
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}
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function indent_multiline(text, depth) {
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const indent = ' '.repeat(depth);
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return text.split('\n').map((l) => (l === '' ? l : indent + l)).join('\n');
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}
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function make_rst_signature(obj, types = false, style = false) {
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let out = '';
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const fmt = style ? '*' : '';
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obj.params.forEach((arg, idx) => {
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if (idx > 0) {
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if (arg.optional) {
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out += ` ${fmt}[`;
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}
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out += ', ';
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} else {
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out += ' ';
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if (arg.optional) {
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out += `${fmt}[ `;
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}
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}
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if (types) {
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out += `${arg.type} `;
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}
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const variable = arg.variable ? '...' : '';
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const defval = arg.defaultvalue !== undefined ? `=${arg.defaultvalue}` : '';
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out += `${variable}${arg.name}${defval}`;
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if (arg.optional) {
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out += ` ]${fmt}`;
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}
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});
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out += ' ';
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return out;
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}
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function make_rst_param(f, obj, depth = 0) {
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const indent = ' '.repeat(depth * 3);
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f.write(indent);
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f.write(`:param ${obj.type} ${obj.name}:\n`);
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f.write(indent_multiline(obj.description, (depth + 1) * 3));
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f.write('\n\n');
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}
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function make_rst_attribute(f, obj, depth = 0, brief = false) {
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const indent = ' '.repeat(depth * 3);
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f.write(indent);
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f.write(`.. js:attribute:: ${obj.name}\n\n`);
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if (brief) {
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if (obj.summary) {
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f.write(indent_multiline(obj.summary, (depth + 1) * 3));
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}
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f.write('\n\n');
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return;
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}
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f.write(indent_multiline(obj.description, (depth + 1) * 3));
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f.write('\n\n');
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f.write(indent);
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f.write(` :type: ${obj.type}\n\n`);
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if (obj.defaultvalue !== undefined) {
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let defval = obj.defaultvalue;
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if (defval === '') {
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defval = '""';
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}
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f.write(indent);
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f.write(` :value: \`\`${defval}\`\`\n\n`);
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}
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}
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function make_rst_function(f, obj, depth = 0) {
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let prefix = '';
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if (obj.is_instance()) {
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prefix = 'prototype.';
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}
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const indent = ' '.repeat(depth * 3);
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const sig = make_rst_signature(obj);
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f.write(indent);
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f.write(`.. js:function:: ${prefix}${obj.name}(${sig})\n`);
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f.write('\n');
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f.write(indent_multiline(obj.description, (depth + 1) * 3));
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f.write('\n\n');
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obj.params.forEach((param) => {
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make_rst_param(f, param, depth + 1);
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});
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if (obj.returns !== 'void') {
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f.write(indent);
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f.write(' :return:\n');
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f.write(indent_multiline(obj.returns_desc, (depth + 2) * 3));
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f.write('\n\n');
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f.write(indent);
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f.write(` :rtype: ${obj.returns}\n\n`);
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}
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}
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function make_rst_object(f, obj) {
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let brief = false;
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// Our custom header flag.
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if (obj.header !== null) {
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f.write(make_header(obj.header, '-'));
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f.write(`${obj.description}\n\n`);
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brief = true;
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}
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// Format members table and descriptions
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const data = [['type', 'name']].concat(obj.members.map((m) => [m.type, `:js:attr:\`${m.name}\``]));
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f.write(make_header('Properties', '^'));
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format_table(f, data, 0);
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make_rst_attribute(f, obj, 0, brief);
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if (!obj.members.length) {
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return;
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}
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f.write(' **Property Descriptions**\n\n');
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// Properties first
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obj.members.filter((m) => !m.is_function()).forEach((m) => {
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make_rst_attribute(f, m, 1);
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});
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// Callbacks last
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obj.members.filter((m) => m.is_function()).forEach((m) => {
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make_rst_function(f, m, 1);
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});
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}
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function make_rst_class(f, obj) {
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const header = obj.header ? obj.header : obj.name;
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f.write(make_header(header, '-'));
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if (obj.classdesc) {
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f.write(`${obj.classdesc}\n\n`);
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}
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const funcs = obj.members.filter((m) => m.is_function());
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function make_data(m) {
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const base = m.is_static() ? obj.name : `${obj.name}.prototype`;
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const params = make_rst_signature(m, true, true);
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const sig = `:js:attr:\`${m.name} <${base}.${m.name}>\` **(**${params}**)**`;
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return [m.returns, sig];
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}
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const sfuncs = funcs.filter((m) => m.is_static());
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const ifuncs = funcs.filter((m) => !m.is_static());
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f.write(make_header('Static Methods', '^'));
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format_table(f, sfuncs.map((m) => make_data(m)));
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f.write(make_header('Instance Methods', '^'));
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format_table(f, ifuncs.map((m) => make_data(m)));
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const sig = make_rst_signature(obj);
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f.write(`.. js:class:: ${obj.name}(${sig})\n\n`);
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f.write(indent_multiline(obj.description, 3));
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f.write('\n\n');
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obj.params.forEach((p) => {
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make_rst_param(f, p, 1);
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});
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f.write(' **Static Methods**\n\n');
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sfuncs.forEach((m) => {
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make_rst_function(f, m, 1);
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});
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f.write(' **Instance Methods**\n\n');
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ifuncs.forEach((m) => {
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make_rst_function(f, m, 1);
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});
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}
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function make_rst_module(f, obj) {
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const header = obj.header !== null ? obj.header : obj.name;
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f.write(make_header(header, '='));
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f.write(obj.description);
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f.write('\n\n');
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}
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function write_base_object(f, obj) {
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if (obj.is_object()) {
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make_rst_object(f, obj);
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} else if (obj.is_function()) {
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make_rst_function(f, obj);
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} else if (obj.is_class()) {
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make_rst_class(f, obj);
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} else if (obj.is_module()) {
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make_rst_module(f, obj);
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}
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}
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function generate(f, docs) {
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const globs = [];
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const SYMBOLS = {};
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docs.filter((d) => !d.ignore && d.kind !== 'package').forEach((d) => {
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SYMBOLS[d.name] = d;
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if (d.memberof) {
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const up = SYMBOLS[d.memberof];
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if (up === undefined) {
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console.log(d); // eslint-disable-line no-console
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console.log(`Undefined symbol! ${d.memberof}`); // eslint-disable-line no-console
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throw new Error('Undefined symbol!');
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}
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SYMBOLS[d.memberof].add_member(d);
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} else {
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globs.push(d);
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}
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});
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f.write('.. _doc_html5_shell_classref:\n\n');
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globs.forEach((obj) => write_base_object(f, obj));
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}
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/**
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* Generate documentation output.
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*
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* @param {TAFFY} data - A TaffyDB collection representing
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* all the symbols documented in your code.
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* @param {object} opts - An object with options information.
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*/
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exports.publish = function (data, opts) {
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const docs = data().get().filter((doc) => !doc.undocumented && !doc.ignore).map((doc) => new JSDoclet(doc));
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const dest = opts.destination;
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if (dest === 'dry-run') {
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process.stdout.write('Dry run... ');
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generate({
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write: function () { /* noop */ },
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}, docs);
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process.stdout.write('Okay!\n');
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return;
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}
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if (dest !== '' && !dest.endsWith('.rst')) {
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throw new Error('Destination file must be either a ".rst" file, or an empty string (for printing to stdout)');
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}
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if (dest !== '') {
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const f = fs.createWriteStream(dest);
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generate(f, docs);
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} else {
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generate(process.stdout, docs);
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}
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};
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