playwright/utils/doclint/documentation.js

1009 строки
29 KiB
JavaScript

/**
* Copyright 2017 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// @ts-check
const md = require('../markdown');
/** @typedef {import('../markdown').MarkdownNode} MarkdownNode */
/**
* @typedef {{
* name: string,
* args: ParsedType | null,
* retType: ParsedType | null,
* template: ParsedType | null,
* union: ParsedType | null,
* unionName?: string,
* next: ParsedType | null,
* }} ParsedType
*/
/**
* @typedef {{
* only?: string[],
* aliases?: Object<string, string>,
* types?: Object<string, Type>,
* overrides?: Object<string, Member>,
* }} Langs
*/
/**
* @typedef {function({
* clazz?: Class,
* member?: Member,
* param?: string,
* option?: string,
* href?: string,
* }): string|undefined} Renderer
*/
/**
* @typedef {{
* langs: Langs,
* since: string,
* deprecated: string | undefined,
* discouraged: string | undefined,
* experimental: boolean
* }} Metainfo
*/
/**
* @typedef {{
* csharpOptionOverloadsShortNotation?: boolean,
* }} LanguageOptions
*/
/** @typedef {{
* value: string, groupId: string, spec: MarkdownNode
* }} CodeGroup */
/** @typedef {function(CodeGroup[]): MarkdownNode[]} CodeGroupTransformer */
class Documentation {
/**
* @param {!Array<!Class>} classesArray
*/
constructor(classesArray) {
this.classesArray = classesArray;
/** @type {!Map<string, !Class>} */
this.classes = new Map();
this.index();
}
/**
* @param {!Documentation} documentation
* @return {!Documentation}
*/
mergeWith(documentation) {
return new Documentation([...this.classesArray, ...documentation.classesArray].map(cls => cls.clone()));
}
/**
* @param {string[]} errors
*/
copyDocsFromSuperclasses(errors) {
for (const [name, clazz] of this.classes.entries()) {
clazz.sortMembers();
if (!clazz.extends || ['EventEmitter', 'Error', 'Exception', 'RuntimeException'].includes(clazz.extends))
continue;
const superClass = this.classes.get(clazz.extends);
if (!superClass) {
errors.push(`Undefined superclass: ${superClass} in ${name}`);
continue;
}
for (const memberName of clazz.members.keys()) {
if (superClass.members.has(memberName))
errors.push(`Member documentation overrides base: ${name}.${memberName} over ${clazz.extends}.${memberName}`);
}
clazz.membersArray = [...clazz.membersArray, ...superClass.membersArray.map(c => c.clone())];
clazz.index();
}
}
/**
* @param {string} lang
* @param {LanguageOptions=} options
*/
filterForLanguage(lang, options = {}) {
const classesArray = [];
for (const clazz of this.classesArray) {
if (clazz.langs.only && !clazz.langs.only.includes(lang))
continue;
clazz.filterForLanguage(lang, options);
classesArray.push(clazz);
}
this.classesArray = classesArray;
this.index();
}
filterOutExperimental() {
const classesArray = [];
for (const clazz of this.classesArray) {
if (clazz.experimental)
continue;
clazz.filterOutExperimental();
classesArray.push(clazz);
}
this.classesArray = classesArray;
this.index();
}
index() {
for (const cls of this.classesArray) {
this.classes.set(cls.name, cls);
cls.index();
}
}
/**
* @param {Renderer} linkRenderer
*/
setLinkRenderer(linkRenderer) {
// @type {Map<string, Class>}
const classesMap = new Map();
const membersMap = new Map();
for (const clazz of this.classesArray) {
classesMap.set(clazz.name, clazz);
for (const member of clazz.membersArray)
membersMap.set(`${member.kind}: ${clazz.name}.${member.name}`, member);
}
/**
* @param {Class|Member|undefined} classOrMember
* @param {string} text
*/
this._patchLinksInText = (classOrMember, text) => patchLinksInText(classOrMember, text, classesMap, membersMap, linkRenderer);
for (const clazz of this.classesArray)
clazz.visit(item => item.spec && this.renderLinksInNodes(item.spec, item));
}
/**
* @param {MarkdownNode[]} nodes
* @param {Class|Member=} classOrMember
*/
renderLinksInNodes(nodes, classOrMember) {
if (classOrMember instanceof Member) {
classOrMember.discouraged = classOrMember.discouraged ? this.renderLinksInText(classOrMember.discouraged, classOrMember) : undefined;
classOrMember.deprecated = classOrMember.deprecated ? this.renderLinksInText(classOrMember.deprecated, classOrMember) : undefined
}
md.visitAll(nodes, node => {
if (!node.text)
return;
node.text = this.renderLinksInText(node.text, classOrMember);
});
}
/**
* @param {string} text
* @param {Class|Member=} classOrMember
*/
renderLinksInText(text, classOrMember) {
return this._patchLinksInText?.(classOrMember, text);
}
/**
* @param {string} lang
* @param {CodeGroupTransformer} transformer
*/
setCodeGroupsTransformer(lang, transformer) {
this._codeGroupsTransformer = { lang, transformer };
}
generateSourceCodeComments() {
for (const clazz of this.classesArray) {
clazz.visit(item => {
let spec = item.spec;
if (spec && this._codeGroupsTransformer)
spec = processCodeGroups(spec, this._codeGroupsTransformer.lang, this._codeGroupsTransformer.transformer);
item.comment = generateSourceCodeComment(spec);
});
}
}
clone() {
return new Documentation(this.classesArray.map(cls => cls.clone()));
}
}
class Class {
/**
* @param {Metainfo} metainfo
* @param {string} name
* @param {!Array<!Member>} membersArray
* @param {?string=} extendsName
* @param {MarkdownNode[]=} spec
*/
constructor(metainfo, name, membersArray, extendsName = null, spec = undefined) {
this.langs = metainfo.langs;
this.experimental = metainfo.experimental;
this.since = metainfo.since;
this.deprecated = metainfo.deprecated;
this.discouraged = metainfo.discouraged;
this.name = name;
this.membersArray = membersArray;
this.spec = spec;
this.extends = extendsName;
this.comment = '';
this.index();
const match = /** @type {string[]} */(name.match(/(API|JS|CDP|[A-Z])(.*)/));
this.varName = match[1].toLowerCase() + match[2];
/** @type {!Map<string, !Member>} */
this.members = new Map();
/** @type {!Map<string, !Member>} */
this.properties = new Map();
/** @type {!Array<!Member>} */
this.propertiesArray = [];
/** @type {!Map<string, !Member>} */
this.methods = new Map();
/** @type {!Array<!Member>} */
this.methodsArray = [];
/** @type {!Map<string, !Member>} */
this.events = new Map();
/** @type {!Array<!Member>} */
this.eventsArray = [];
}
index() {
this.members = new Map();
this.properties = new Map();
this.propertiesArray = [];
this.methods = new Map();
this.methodsArray = [];
this.events = new Map();
this.eventsArray = [];
for (const member of this.membersArray) {
this.members.set(member.name, member);
if (member.kind === 'method') {
this.methods.set(member.name, member);
this.methodsArray.push(member);
} else if (member.kind === 'property') {
this.properties.set(member.name, member);
this.propertiesArray.push(member);
} else if (member.kind === 'event') {
this.events.set(member.name, member);
this.eventsArray.push(member);
}
member.clazz = this;
member.index();
}
}
clone() {
const cls = new Class({ langs: this.langs, experimental: this.experimental, since: this.since, deprecated: this.deprecated, discouraged: this.discouraged }, this.name, this.membersArray.map(m => m.clone()), this.extends, this.spec);
cls.comment = this.comment;
return cls;
}
/**
* @param {string} lang
* @param {LanguageOptions=} options
*/
filterForLanguage(lang, options = {}) {
const membersArray = [];
for (const member of this.membersArray) {
if (member.langs.only && !member.langs.only.includes(lang))
continue;
member.filterForLanguage(lang, options);
membersArray.push(member);
}
this.membersArray = membersArray;
}
filterOutExperimental() {
const membersArray = [];
for (const member of this.membersArray) {
if (member.experimental)
continue;
member.filterOutExperimental();
membersArray.push(member);
}
this.membersArray = membersArray;
}
sortMembers() {
/**
* @param {Member} member
*/
function sortKey(member) {
return { 'event': 'a', 'method': 'b', 'property': 'c' }[member.kind] + member.alias;
}
this.membersArray.sort((m1, m2) => {
return sortKey(m1).localeCompare(sortKey(m2), 'en', { sensitivity: 'base' });
});
// Ideally, we would automatically make options the last argument.
// However, that breaks Java, since options are not always last in Java, for example
// in page.waitForFileChooser(options, callback).
// So, the order must be carefully setup in the md file!
}
/**
* @param {function(Member|Class): void} visitor
*/
visit(visitor) {
visitor(this);
for (const p of this.propertiesArray)
p.visit(visitor);
for (const m of this.methodsArray)
m.visit(visitor);
for (const e of this.eventsArray)
e.visit(visitor);
}
};
class Member {
/**
* @param {string} kind
* @param {Metainfo} metainfo
* @param {string} name
* @param {?Type} type
* @param {!Array<!Member>} argsArray
* @param {MarkdownNode[]=} spec
* @param {boolean=} required
*/
constructor(kind, metainfo, name, type, argsArray, spec = undefined, required = true) {
this.kind = kind;
this.langs = metainfo.langs;
this.experimental = metainfo.experimental;
this.since = metainfo.since;
this.deprecated = metainfo.deprecated;
this.discouraged = metainfo.discouraged;
this.name = name;
this.type = type;
this.spec = spec;
this.argsArray = argsArray;
this.required = required;
this.comment = '';
/** @type {!Map<string, !Member>} */
this.args = new Map();
this.index();
/** @type {!Class | null} */
this.clazz = null;
/** @type {Member=} */
this.enclosingMethod = undefined;
this.async = false;
this.alias = name;
this.overloadIndex = 0;
if (name.includes('#')) {
const match = /** @type {string[]} */(name.match(/(.*)#(.*)/));
this.alias = match[1];
this.overloadIndex = (+match[2]) - 1;
}
/**
* Param is true and option false
* @type {Boolean | null}
*/
this.paramOrOption = null;
}
index() {
this.args = new Map();
if (this.kind === 'method')
this.enclosingMethod = this;
for (const arg of this.argsArray) {
this.args.set(arg.name, arg);
arg.enclosingMethod = this;
if (arg.name === 'options') {
// @ts-ignore
arg.type.properties.sort((p1, p2) => p1.name.localeCompare(p2.name));
// @ts-ignore
arg.type.properties.forEach(p => p.enclosingMethod = this);
}
}
}
/**
* @param {string} lang
* @param {LanguageOptions=} options
*/
filterForLanguage(lang, options = {}) {
if (!this.type)
return;
if (this.langs.aliases && this.langs.aliases[lang])
this.alias = this.langs.aliases[lang];
if (this.langs.types && this.langs.types[lang])
this.type = this.langs.types[lang];
this.type.filterForLanguage(lang, options);
const argsArray = [];
for (const arg of this.argsArray) {
if (arg.langs.only && !arg.langs.only.includes(lang))
continue;
const overriddenArg = (arg.langs.overrides && arg.langs.overrides[lang]) || arg;
overriddenArg.filterForLanguage(lang, options);
// @ts-ignore
if (overriddenArg.name === 'options' && !overriddenArg.type.properties.length)
continue;
// @ts-ignore
overriddenArg.type.filterForLanguage(lang, options);
argsArray.push(overriddenArg);
}
this.argsArray = argsArray;
const optionsArg = this.argsArray.find(arg => arg.name === 'options');
if (lang === 'csharp' && optionsArg) {
try {
patchCSharpOptionOverloads(optionsArg, options);
} catch (e) {
throw new Error(`Error processing csharp options in ${this.clazz?.name}.${this.name}: ` + e.message);
}
}
}
filterOutExperimental() {
if (!this.type)
return;
this.type.filterOutExperimental();
const argsArray = [];
for (const arg of this.argsArray) {
if (arg.experimental || !arg.type)
continue;
arg.type.filterOutExperimental();
argsArray.push(arg);
}
this.argsArray = argsArray;
}
clone() {
const result = new Member(this.kind, { langs: this.langs, experimental: this.experimental, since: this.since, deprecated: this.deprecated, discouraged: this.discouraged }, this.name, this.type?.clone(), this.argsArray.map(arg => arg.clone()), this.spec, this.required);
result.alias = this.alias;
result.async = this.async;
result.paramOrOption = this.paramOrOption;
return result;
}
/**
* @param {Metainfo} metainfo
* @param {string} name
* @param {!Array<!Member>} argsArray
* @param {?Type} returnType
* @param {MarkdownNode[]=} spec
* @return {!Member}
*/
static createMethod(metainfo, name, argsArray, returnType, spec) {
return new Member('method', metainfo, name, returnType, argsArray, spec);
}
/**
* @param {Metainfo} metainfo
* @param {!string} name
* @param {!Type} type
* @param {!MarkdownNode[]=} spec
* @param {boolean=} required
* @return {!Member}
*/
static createProperty(metainfo, name, type, spec, required) {
return new Member('property', metainfo, name, type, [], spec, required);
}
/**
* @param {Metainfo} metainfo
* @param {string} name
* @param {?Type=} type
* @param {MarkdownNode[]=} spec
* @return {!Member}
*/
static createEvent(metainfo, name, type = null, spec) {
return new Member('event', metainfo, name, type, [], spec);
}
/**
* @param {function(Member|Class): void} visitor
*/
visit(visitor) {
visitor(this);
if (this.type)
this.type.visit(visitor);
for (const arg of this.argsArray)
arg.visit(visitor);
}
};
class Type {
/**
* @param {string} expression
* @param {!Array<!Member>=} properties
* @return {Type}
*/
static parse(expression, properties = []) {
expression = expression.replace(/\\\(/g, '(').replace(/\\\)/g, ')');
const type = Type.fromParsedType(parseTypeExpression(expression));
type.expression = expression;
if (type.name === 'number')
throw new Error('Number types should be either int or float, not number in: ' + expression);
if (!properties.length)
return type;
const types = [];
type._collectAllTypes(types);
let success = false;
for (const t of types) {
if (t.name === 'Object') {
t.properties = properties;
success = true;
}
}
if (!success)
throw new Error('Nested properties given, but there are no objects in type expression: ' + expression);
return type;
}
/**
* @param {ParsedType} parsedType
* @return {Type}
*/
static fromParsedType(parsedType, inUnion = false) {
if (!inUnion && !parsedType.unionName && isStringUnion(parsedType) ) {
throw new Error('Enum must have a name:\n' + JSON.stringify(parsedType, null, 2));
}
if (!inUnion && (parsedType.union || parsedType.unionName)) {
const type = new Type(parsedType.unionName || '');
type.union = [];
// @ts-ignore
for (let t = parsedType; t; t = t.union) {
const nestedUnion = !!t.unionName && t !== parsedType;
type.union.push(Type.fromParsedType(t, !nestedUnion));
if (nestedUnion)
break;
}
return type;
}
if (parsedType.args) {
const type = new Type('function');
type.args = [];
// @ts-ignore
for (let t = parsedType.args; t; t = t.next)
type.args.push(Type.fromParsedType(t));
type.returnType = parsedType.retType ? Type.fromParsedType(parsedType.retType) : undefined;
return type;
}
if (parsedType.template) {
const type = new Type(parsedType.name);
type.templates = [];
// @ts-ignore
for (let t = parsedType.template; t; t = t.next)
type.templates.push(Type.fromParsedType(t));
return type;
}
return new Type(parsedType.name);
}
/**
* @param {string} name
* @param {!Array<!Member>=} properties
*/
constructor(name, properties) {
this.name = name.replace(/^\[/, '').replace(/\]$/, '');
/** @type {Member[] | undefined} */
this.properties = this.name === 'Object' ? properties : undefined;
/** @type {Type[] | undefined} */
this.union;
/** @type {Type[] | undefined} */
this.args;
/** @type {Type | undefined} */
this.returnType;
/** @type {Type[] | undefined} */
this.templates;
/** @type {string | undefined} */
this.expression;
}
visit(visitor) {
const types = [];
this._collectAllTypes(types);
for (const type of types) {
for (const p of type.properties || [])
p.visit(visitor);
}
}
clone() {
const type = new Type(this.name, this.properties ? this.properties.map(prop => prop.clone()) : undefined);
if (this.union)
type.union = this.union.map(type => type.clone());
if (this.args)
type.args = this.args.map(type => type.clone());
if (this.returnType)
type.returnType = this.returnType.clone();
if (this.templates)
type.templates = this.templates.map(type => type.clone());
type.expression = this.expression;
return type;
}
/**
* @returns {Member[]}
*/
deepProperties() {
const types = [];
this._collectAllTypes(types);
for (const type of types) {
if (type.properties && type.properties.length)
return type.properties;
}
return [];
}
/**
* @returns {Member[] | undefined}
*/
sortedProperties() {
if (!this.properties)
return this.properties;
const sortedProperties = [...this.properties];
sortedProperties.sort((p1, p2) => p1.name.localeCompare(p2.name));
return sortedProperties;
}
/**
* @param {string} lang
* @param {LanguageOptions=} options
*/
filterForLanguage(lang, options = {}) {
if (!this.properties)
return;
const properties = [];
for (const prop of this.properties) {
if (prop.langs.only && !prop.langs.only.includes(lang))
continue;
prop.filterForLanguage(lang, options);
properties.push(prop);
}
this.properties = properties;
}
filterOutExperimental() {
if (!this.properties)
return;
const properties = [];
for (const prop of this.properties) {
if (prop.experimental)
continue;
prop.filterOutExperimental();
properties.push(prop);
}
this.properties = properties;
}
/**
* @param {Type[]} result
*/
_collectAllTypes(result) {
result.push(this);
for (const t of this.union || [])
t._collectAllTypes(result);
for (const t of this.args || [])
t._collectAllTypes(result);
for (const t of this.templates || [])
t._collectAllTypes(result);
if (this.returnType)
this.returnType._collectAllTypes(result);
}
};
/**
* @param {ParsedType | null} type
* @returns {boolean}
*/
function isStringUnion(type) {
while (type) {
if (!type.name.startsWith('"') || !type.name.endsWith('"'))
return false;
type = type.union;
}
return true;
}
/**
* @param {string} type
* @returns {ParsedType}
*/
function parseTypeExpression(type) {
type = type.trim();
let name = type;
let next = null;
let template = null;
let args = null;
let retType = null;
let firstTypeLength = type.length;
for (let i = 0; i < type.length; i++) {
if (type[i] === '<') {
name = type.substring(0, i);
const matching = matchingBracket(type.substring(i), '<', '>');
template = parseTypeExpression(type.substring(i + 1, i + matching - 1));
firstTypeLength = i + matching;
break;
}
if (type[i] === '(') {
name = type.substring(0, i);
const matching = matchingBracket(type.substring(i), '(', ')');
args = parseTypeExpression(type.substring(i + 1, i + matching - 1));
i = i + matching;
if (type[i] === ':') {
retType = parseTypeExpression(type.substring(i + 1));
next = retType.next;
retType.next = null;
break;
}
}
if (type[i] === '|' || type[i] === ',') {
name = type.substring(0, i);
firstTypeLength = i;
break;
}
}
let union = null;
if (type[firstTypeLength] === '|')
union = parseTypeExpression(type.substring(firstTypeLength + 1));
else if (type[firstTypeLength] === ',')
next = parseTypeExpression(type.substring(firstTypeLength + 1));
if (template && !template.unionName && isStringUnion(template)) {
template.unionName = name;
return template;
}
return {
name,
args,
retType,
template,
union,
next
};
}
/**
* @param {string} str
* @param {any} open
* @param {any} close
*/
function matchingBracket(str, open, close) {
let count = 1;
let i = 1;
for (; i < str.length && count; i++) {
if (str[i] === open)
count++;
else if (str[i] === close)
count--;
}
return i;
}
/**
* @param {Class|Member|undefined} classOrMember
* @param {string} text
* @param {Map<string, Class>} classesMap
* @param {Map<string, Member>} membersMap
* @param {Renderer} linkRenderer
*/
function patchLinksInText(classOrMember, text, classesMap, membersMap, linkRenderer) {
text = text.replace(/\[`(\w+): ([^\]]+)`\](?:\(([^)]*?)\))?/g, (match, p1, p2, href) => {
if (['event', 'method', 'property'].includes(p1)) {
const memberName = p1 + ': ' + p2;
const member = membersMap.get(memberName);
if (!member)
throw new Error('Undefined member references: ' + match);
return linkRenderer({ member, href }) || match;
}
if (p1 === 'param') {
let alias = p2;
if (classOrMember) {
// param/option reference can only be in method or same method parameter comments.
// @ts-ignore
const method = classOrMember.enclosingMethod;
const param = method.argsArray.find(a => a.name === p2);
if (!param)
throw new Error(`Referenced parameter ${match} not found in the parent method ${method.name} `);
alias = param.alias;
}
return linkRenderer({ param: alias, href }) || match;
}
if (p1 === 'option')
return linkRenderer({ option: p2, href }) || match;
throw new Error(`Undefined link prefix, expected event|method|property|param|option, got: ` + match);
});
text = text.replace(/\[([\w]+)\](?:\(([^)]*?)\))?/g, (match, p1, href) => {
const clazz = classesMap.get(p1);
if (clazz)
return linkRenderer({ clazz, href }) || match;
return match;
});
return text;
}
/**
* @param {MarkdownNode[] | undefined} spec
*/
function generateSourceCodeComment(spec) {
const comments = (spec || []).filter(n => !n.type.startsWith('h') && (n.type !== 'li' || n.liType !== 'default')).map(c => md.clone(c));
md.visitAll(comments, node => {
if (node.type === 'li' && node.liType === 'bullet')
node.liType = 'default';
if (node.type === 'code' && node.codeLang)
node.codeLang = parseCodeLang(node.codeLang).highlighter;
if (node.type === 'note') {
// @ts-ignore
node.type = 'text';
node.text = '**NOTE** ' + node.text;
}
});
// 5 is a typical member doc offset.
return md.render(comments, { maxColumns: 120 - 5, omitLastCR: true, flattenText: true });
}
/**
* @param {Member} optionsArg
* @param {LanguageOptions=} options
*/
function patchCSharpOptionOverloads(optionsArg, options = {}) {
const props = optionsArg.type?.properties;
if (!props)
return;
const propsToDelete = new Set();
const propsToAdd = [];
for (const prop of props) {
const union = prop.type?.union;
if (!union)
continue;
const isEnum = union[0].name.startsWith('"');
const isNullable = union.length === 2 && union.some(type => type.name === 'null');
if (isEnum || isNullable)
continue;
const shortNotation = [];
propsToDelete.add(prop);
for (const type of union) {
const suffix = csharpOptionOverloadSuffix(prop.name, type.name);
if (options.csharpOptionOverloadsShortNotation) {
if (type.name === 'string')
shortNotation.push(prop.alias);
else
shortNotation.push(prop.alias + suffix);
continue;
}
const newProp = prop.clone();
newProp.name = prop.name + suffix;
newProp.alias = prop.alias + suffix;
newProp.type = type;
propsToAdd.push(newProp);
if (type.name === 'string') {
const stringProp = prop.clone();
stringProp.type = type;
propsToAdd.push(stringProp);
}
}
if (options.csharpOptionOverloadsShortNotation) {
const newProp = prop.clone();
newProp.alias = newProp.name = shortNotation.join('|');
propsToAdd.push(newProp);
}
}
for (const prop of propsToDelete)
props.splice(props.indexOf(prop), 1);
props.push(...propsToAdd);
}
/**
* @param {string} option
* @param {string} type
*/
function csharpOptionOverloadSuffix(option, type) {
switch (type) {
case 'string': return 'String';
case 'RegExp': return 'Regex';
case 'function': return 'Func';
case 'Buffer': return 'Byte';
case 'Serializable': return 'Object';
}
throw new Error(`CSharp option "${option}" has unsupported type overload "${type}"`);
}
/**
* @param {MarkdownNode[]} spec
* @param {string} language
* @param {CodeGroupTransformer} transformer
* @returns {MarkdownNode[]}
*/
function processCodeGroups(spec, language, transformer) {
/** @type {MarkdownNode[]} */
const newSpec = [];
for (let i = 0; i < spec.length; ++i) {
/** @type {{value: string, groupId: string, spec: MarkdownNode}[]} */
const tabs = [];
for (;i < spec.length; i++) {
const codeLang = spec[i].codeLang;
if (!codeLang)
break;
let parsed;
try {
parsed = parseCodeLang(codeLang);
} catch (e) {
throw new Error(e.message + '\n while processing:\n' + md.render([spec[i]]));
}
if (!parsed.codeGroup)
break;
if (parsed.language && parsed.language !== language)
continue;
const [groupId, value] = parsed.codeGroup.split('-');
const clone = md.clone(spec[i]);
clone.codeLang = parsed.highlighter;
tabs.push({ groupId, value, spec: clone });
}
if (tabs.length) {
if (tabs.length === 1)
throw new Error(`Lonely tab "${tabs[0].spec.codeLang}". Make sure there are at least two tabs in the group.\n` + md.render([tabs[0].spec]));
// Validate group consistency.
const groupId = tabs[0].groupId;
const values = new Set();
for (const tab of tabs) {
if (tab.groupId !== groupId)
throw new Error('Mixed group ids: ' + md.render(spec));
if (values.has(tab.value))
throw new Error(`Duplicated tab "${tab.value}"\n` + md.render(tabs.map(tab => tab.spec)));
values.add(tab.value);
}
// Append transformed nodes.
newSpec.push(...transformer(tabs));
}
if (i < spec.length)
newSpec.push(spec[i]);
}
return newSpec;
}
/**
* @param {string} codeLang
* @return {{ highlighter: string, language: string|undefined, codeGroup: string|undefined}}
*/
function parseCodeLang(codeLang) {
if (codeLang === 'python async')
return { highlighter: 'py', codeGroup: 'python-async', language: 'python' };
if (codeLang === 'python sync')
return { highlighter: 'py', codeGroup: 'python-sync', language: 'python' };
const [highlighter] = codeLang.split(' ');
if (!highlighter)
throw new Error(`Cannot parse code block lang: "${codeLang}"`);
const languageMatch = codeLang.match(/ lang=([\w\d]+)/);
let language = languageMatch ? languageMatch[1] : undefined;
if (!language) {
if (highlighter === 'ts')
language = 'js';
else if (highlighter === 'py')
language = 'python';
else if (['js', 'python', 'csharp', 'java'].includes(highlighter))
language = highlighter;
}
const tabMatch = codeLang.match(/ tab=([\w\d-]+)/);
return { highlighter, language, codeGroup: tabMatch ? tabMatch[1] : '' };
}
module.exports = { Documentation, Class, Member, Type, processCodeGroups, parseCodeLang };