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Merge pull request #34 from buehler/develop
Release 2017-10-26
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‎README.md‎

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This package is a TypeScript and ECMAScript parser. It uses the underlying typescript parser to generate
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a more or less human readable AST out of .js or .ts files.
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[![Build Status](https://travis-ci.org/TypeScript-Heroes/node-typescript-parser.svg)](https://travis-ci.org/TypeScript-Heroes/node-typescript-parser)
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[![Build Status](https://travis-ci.org/buehler/node-typescript-parser.svg)](https://travis-ci.org/buehler/node-typescript-parser)
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[![npm](https://img.shields.io/npm/v/typescript-parser.svg?maxAge=3600)](https://www.npmjs.com/package/typescript-parser)
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[![Coverage status](https://img.shields.io/coveralls/TypeScript-Heroes/node-typescript-parser.svg?maxAge=3600)](https://coveralls.io/github/TypeScript-Heroes/node-typescript-parser)
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[![Coverage status](https://img.shields.io/coveralls/buehler/node-typescript-parser.svg?maxAge=3600)](https://coveralls.io/github/buehler/node-typescript-parser)
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[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
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[![Greenkeeper badge](https://badges.greenkeeper.io/TypeScript-Heroes/node-typescript-parser.svg)](https://greenkeeper.io/)
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[![Greenkeeper badge](https://badges.greenkeeper.io/buehler/node-typescript-parser.svg)](https://greenkeeper.io/)
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## How to use
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@@ -40,7 +40,7 @@ Keep in mind, that the index'll only contain exported declarations.
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## Changelog
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The changelog is generated by [semantic release](https://github.com/semantic-release/semantic-release) and is located under the
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[release section](https://github.com/TypeScript-Heroes/node-typescript-parser/releases).
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[release section](https://github.com/buehler/node-typescript-parser/releases).
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## Licence
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‎src/TypescriptParser.ts‎

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@@ -12,13 +12,15 @@ import {
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InterfaceDeclaration,
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ModuleDeclaration,
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Node,
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ScriptKind,
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ScriptTarget,
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SourceFile,
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SyntaxKind,
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TypeAliasDeclaration,
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VariableStatement,
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} from 'typescript';
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import { parse } from 'path';
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import { parseClass } from './node-parser/class-parser';
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import { parseEnum } from './node-parser/enum-parser';
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import { parseExport } from './node-parser/export-parser';
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* This class is the parser of the whole extension. It uses the typescript compiler to parse a file or given
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* source code into the token stream and therefore into the AST of the source. Afterwards an array of
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* resources is generated and returned.
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*
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*
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* @export
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* @class TypescriptParser
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*/
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export class TypescriptParser {
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/**
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* Parses the given source into an anonymous File resource.
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* Mainly used to parse source code of a document.
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*
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*
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* @param {string} source
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* @param {ScriptKind} [scriptKind=ScriptKind.TS]
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* @returns {Promise<File>}
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*
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*
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* @memberof TsResourceParser
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*/
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public async parseSource(source: string): Promise<File> {
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return await this.parseTypescript(createSourceFile('inline.tsx', source, ScriptTarget.ES2015, true), '/');
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public async parseSource(source: string, scriptKind: ScriptKind = ScriptKind.TS): Promise<File> {
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return await this.parseTypescript(
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createSourceFile(
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'inline.tsx',
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source,
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ScriptTarget.ES2015,
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true,
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scriptKind),
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'/');
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}
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/**
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* Parses a single file into a parsed file.
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*
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*
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* @param {string} filePath
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* @param {string} rootPath
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* @returns {Promise<File>}
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*
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*
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* @memberof TsResourceParser
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*/
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public async parseFile(filePath: string, rootPath: string): Promise<File> {
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/**
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* Parses multiple files into parsed files.
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*
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*
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* @param {string[]} filePathes
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* @param {string} rootPath
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* @returns {Promise<File[]>}
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*
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*
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* @memberof TsResourceParser
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*/
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public async parseFiles(filePathes: string[], rootPath: string): Promise<File[]> {
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public async parseFiles(
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filePathes: string[],
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rootPath: string): Promise<File[]> {
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return filePathes
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.map(o => createSourceFile(o, readFileSync(o).toString(), ScriptTarget.ES2015, true))
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.map((o) => {
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let scriptKind: ScriptKind = ScriptKind.Unknown;
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const parsed = parse(o);
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switch (parsed.ext.toLowerCase()) {
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case 'js':
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scriptKind = ScriptKind.JS;
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break;
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case 'jsx':
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scriptKind = ScriptKind.JSX;
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break;
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case 'ts':
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scriptKind = ScriptKind.TS;
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break;
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case 'tsx':
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scriptKind = ScriptKind.TSX;
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break;
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}
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return createSourceFile(o,
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readFileSync(o).toString(),
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ScriptTarget.ES2015,
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true,
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scriptKind);
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})
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.map(o => this.parseTypescript(o, rootPath));
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}
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/**
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* Parses the typescript source into the file instance. Calls .parse afterwards to
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* get the declarations and other information about the source.
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*
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*
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* @private
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* @param {SourceFile} source
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* @param {string} rootPath
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* @returns {TsFile}
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*
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*
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* @memberof TsResourceParser
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*/
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private parseTypescript(source: SourceFile, rootPath: string): File {
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* Recursive function that runs through the AST of a source and parses the nodes.
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* Creates the class / function / etc declarations and instanciates a new module / namespace
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* resource if needed.
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*
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*
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* @private
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* @param {Resource} resource
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* @param {Node} node
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*
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*
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* @memberof TsResourceParser
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*/
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private parse(resource: Resource, node: Node): void {

‎test/TypescriptParser.spec.ts‎

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import { readFileSync } from 'fs';
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import { ScriptKind } from 'typescript';
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import { ClassDeclaration } from '../src/declarations/ClassDeclaration';
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import { DeclarationVisibility } from '../src/declarations/DeclarationVisibility';
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});
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619620
it('should parseSource correctly', async () => {
620-
const parsedSource = await parser.parseSource(readFileSync(file).toString());
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const parsedSource = await parser.parseSource(readFileSync(file).toString(), ScriptKind.TSX);
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622623
expect(parsedSource.usages).toMatchSnapshot();
623624
});
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it('should parse the correct usages with "parseSource"', async () => {
680681
const file = getWorkspaceFile(`typescript-parser/specific-cases/${testFile.filename}`);
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const fileSource = readFileSync(file).toString();
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const parsed = await parser.parseSource(fileSource);
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const parsed = await parser.parseSource(fileSource, ScriptKind.TSX);
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684685
for (const usage of testFile.requiredUsages) {
685686
expect(parsed.usages).toContain(usage);
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715716
it('should parse a simple javascript file correctly with "parseSource"', async () => {
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const content = readFileSync(file).toString();
717-
const parsed = await parser.parseSource(content);
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const parsed = await parser.parseSource(content, ScriptKind.JS);
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expect(parsed).toMatchSnapshot();
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});
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it('should parse a simple javascript react file correctly with "parseSource"', async () => {
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const content = readFileSync(file).toString();
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const parsed = await parser.parseSource(content);
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const parsed = await parser.parseSource(content, ScriptKind.JSX);
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expect(parsed).toMatchSnapshot();
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});
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757758
public test() {
758759
let a = <T>() => { let b = null; };
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}
760-
}`);
761+
}`, ScriptKind.TS);
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expect(parsed).toMatchSnapshot();
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});
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‎test/__snapshots__/TypescriptParser.spec.ts.snap‎

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"isExported": true,
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"methods": Array [
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MethodDeclaration {
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"end": 144,
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"end": 130,
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"isAbstract": false,
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"name": "test",
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"parameters": Array [],
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"start": 41,
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"type": undefined,
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"variables": Array [
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VariableDeclaration {
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"end": 144,
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"end": 112,
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"isConst": false,
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"isExported": false,
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"name": "a",
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"start": 77,
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"type": undefined,
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},
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VariableDeclaration {
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"end": 109,
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"isConst": false,
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"isExported": false,
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"name": "b",
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"start": 96,
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"type": undefined,
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},
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],
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"visibility": 2,
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},
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"usages": Array [
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"a",
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"T",
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"let",
1530-
undefined,
1531-
"",
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"b",
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],
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}
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`;

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