// © 2015-2019 SitePen, Inc. New BSD License.

// see: https://github.com/SitePen/dts-generator

(function (factory) {

var v = factory(require, exports);

if (v !== undefined) module.exports = v;

})(function (require, exports) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });

const fs = require("fs");

const glob = require("glob");

const mkdirp = require("mkdirp");

const os = require("os");

const pathUtil = require("path");

const ts = require("typescript");

// declare some constants so we don't have magic integers without explanation

const DTSLEN = '.d.ts'.length;

const filenameToMid = (function () {

if (pathUtil.sep === '/') {

return function (filename) {

return filename;

};

}

else {

const separatorExpression = new RegExp(pathUtil.sep.replace('\\', '\\\\'), 'g');

return function (filename) {

return filename.replace(separatorExpression, '/');

};

}

})();

/**

* A helper function that takes TypeScript diagnostic errors and returns an error

* object.

* @param diagnostics The array of TypeScript Diagnostic objects

*/

function getError(diagnostics) {

let message = 'Declaration generation failed';

diagnostics.forEach(function (diagnostic) {

// not all errors have an associated file: in particular, problems with a

// the tsconfig.json don't; the messageText is enough to diagnose in those

// cases.

if (diagnostic.file) {

const position = diagnostic.file.getLineAndCharacterOfPosition(diagnostic.start);

message +=

`\n${diagnostic.file.fileName}(${position.line + 1},${position.character + 1}): ` +

`error TS${diagnostic.code}: ${diagnostic.messageText}`;

}

else {

message += `\nerror TS${diagnostic.code}: ${diagnostic.messageText}`;

}

});

const error = new Error(message);

error.name = 'EmitterError';

return error;

}

function getFilenames(baseDir, files) {

return files.map(function (filename) {

const resolvedFilename = pathUtil.resolve(filename);

if (resolvedFilename.indexOf(baseDir) === 0) {

return resolvedFilename;

}

return pathUtil.resolve(baseDir, filename);

});

}

function processTree(sourceFile, replacer) {

let code = '';

let cursorPosition = 0;

function skip(node) {

cursorPosition = node.end;

}

function readThrough(node) {

code += sourceFile.text.slice(cursorPosition, node.pos);

cursorPosition = node.pos;

}

function visit(node) {

readThrough(node);

const replacement = replacer(node);

if (replacement != null) {

code += replacement;

skip(node);

}

else {

ts.forEachChild(node, visit);

}

}

visit(sourceFile);

code += sourceFile.text.slice(cursorPosition);

return code;

}

/**

* Load and parse a TSConfig File

* @param options The dts-generator options to load config into

* @param fileName The path to the file

*/

function getTSConfig(fileName) {

// TODO this needs a better design than merging stuff into options.

// the trouble is what to do when no tsconfig is specified...

const configText = fs.readFileSync(fileName, { encoding: 'utf8' });

const result = ts.parseConfigFileTextToJson(fileName, configText);

if (result.error) {

throw getError([result.error]);

}

const configObject = result.config;

const configParseResult = ts.parseJsonConfigFileContent(configObject, ts.sys, pathUtil.dirname(fileName));

if (configParseResult.errors && configParseResult.errors.length) {

throw getError(configParseResult.errors);

}

return [

configParseResult.fileNames,

configParseResult.options

];

}

function isNodeKindImportDeclaration(value) {

return value && value.kind === ts.SyntaxKind.ImportDeclaration;

}

function isNodeKindExternalModuleReference(value) {

return value && value.kind === ts.SyntaxKind.ExternalModuleReference;

}

function isNodeKindStringLiteral(value) {

return value && value.kind === ts.SyntaxKind.StringLiteral;

}

function isNodeKindExportDeclaration(value) {

return value && value.kind === ts.SyntaxKind.ExportDeclaration;

}

function isNodeKindExportAssignment(value) {

return value && value.kind === ts.SyntaxKind.ExportAssignment;

}

function isNodeKindModuleDeclaration(value) {

return value && value.kind === ts.SyntaxKind.ModuleDeclaration;

}

function generate(options) {

if (Boolean(options.main) !== Boolean(options.name)) {

if (Boolean(options.name)) {

// since options.name used to do double duty as the prefix, let's be

// considerate and point out that name should be replaced with prefix.

// TODO update this error message when we finalize which version this change

// will be released in.

throw new Error(`name and main must be used together. Perhaps you want prefix instead of

name? In dts-generator version 2.1, name did double duty as the option to

use to prefix module names with, but in >=2.2 the name option was split

into two; prefix is what is now used to prefix imports and module names

in the output.`);

}

else {

throw new Error('name and main must be used together.');

}

}

const noop = function () { };

const sendMessage = options.sendMessage || noop;

const verboseMessage = options.verbose ? sendMessage : noop;

let compilerOptions = {};

let files = options.files;

/* following tsc behaviour, if a project is specified, or if no files are specified then

* attempt to load tsconfig.json */

if (options.project || !options.files || options.files.length === 0) {

verboseMessage(`project = "${options.project || options.baseDir}"`);

// if project isn't specified, use baseDir. If it is and it's a directory,

// assume we want tsconfig.json in that directory. If it is a file, though

// use that as our tsconfig.json. This allows for projects that have more

// than one tsconfig.json file.

let tsconfigFilename;

if (Boolean(options.project)) {

if (fs.lstatSync(options.project).isDirectory()) {

tsconfigFilename = pathUtil.join(options.project, 'tsconfig.json');

}

else {

// project isn't a diretory, it's a file

tsconfigFilename = options.project;

}

}

else {

tsconfigFilename = pathUtil.join(options.baseDir, 'tsconfig.json');

}

if (fs.existsSync(tsconfigFilename)) {

verboseMessage(` parsing "${tsconfigFilename}"`);

[files, compilerOptions] = getTSConfig(tsconfigFilename);

}

else {

sendMessage(`No "tsconfig.json" found at "${tsconfigFilename}"!`);

return new Promise(function ({}, reject) {

reject(new SyntaxError('Unable to resolve configuration.'));

});

}

}

const eol = options.eol || os.EOL;

const nonEmptyLineStart = new RegExp(eol + '(?!' + eol + '|$)', 'g');

const indent = options.indent === undefined ? '\t' : options.indent;

// use input values if tsconfig leaves any of these undefined.

// this is for backwards compatibility

compilerOptions.declaration = true;

compilerOptions.target = compilerOptions.target || ts.ScriptTarget.Latest; // is this necessary?

compilerOptions.moduleResolution = compilerOptions.moduleResolution || options.moduleResolution;

compilerOptions.outDir = compilerOptions.outDir || options.outDir;

// TODO should compilerOptions.baseDir come into play?

const baseDir = pathUtil.resolve(compilerOptions.rootDir || options.project || options.baseDir);

const outDir = compilerOptions.outDir;

verboseMessage(`baseDir = "${baseDir}"`);

verboseMessage(`target = ${compilerOptions.target}`);

verboseMessage(`outDir = ${compilerOptions.outDir}`);

verboseMessage(`rootDir = ${compilerOptions.rootDir}`);

verboseMessage(`moduleResolution = ${compilerOptions.moduleResolution}`);

const filenames = getFilenames(baseDir, files);

verboseMessage('filenames:');

filenames.forEach(name => { verboseMessage(' ' + name); });

const excludesMap = {};

options.exclude = options.exclude || ['node_modules/**/*.d.ts'];

options.exclude && options.exclude.forEach(function (filename) {

glob.sync(filename, { cwd: baseDir }).forEach(function (globFileName) {

excludesMap[filenameToMid(pathUtil.resolve(baseDir, globFileName))] = true;

});

});

if (options.exclude) {

verboseMessage('exclude:');

options.exclude.forEach(name => { verboseMessage(' ' + name); });

}

if (!options.stdout) mkdirp.sync(pathUtil.dirname(options.out));

/* node.js typings are missing the optional mode in createWriteStream options and therefore

* in TS 1.6 the strict object literal checking is throwing, therefore a hammer to the nut */

const output = options.stdout || fs.createWriteStream(options.out, { mode: parseInt('644', 8) });

const host = ts.createCompilerHost(compilerOptions);

const program = ts.createProgram(filenames, compilerOptions, host);

function writeFile(filename, data) {

// Compiler is emitting the non-declaration file, which we do not care about

if (filename.slice(-DTSLEN) !== '.d.ts') {

return;

}

writeDeclaration(ts.createSourceFile(filename, data, compilerOptions.target, true), true);

}

let declaredExternalModules = [];

return new Promise(function (resolve, reject) {

output.on('close', () => { resolve(undefined); });

output.on('error', reject);

if (options.externs) {

options.externs.forEach(function (path) {

sendMessage(`Writing external dependency ${path}`);

output.write(`/// <reference path="${path}" />` + eol);

});

}

if (options.types) {

options.types.forEach(function (type) {

sendMessage(`Writing external @types package dependency ${type}`);

output.write(`/// <reference types="${type}" />` + eol);

});

}

sendMessage('processing:');

let mainExportDeclaration = false;

let mainExportAssignment = false;

let foundMain = false;

program.getSourceFiles().forEach(function (sourceFile) {

processTree(sourceFile, function (node) {

if (isNodeKindModuleDeclaration(node)) {

const name = node.name;

if (isNodeKindStringLiteral(name)) {

declaredExternalModules.push(name.text);

}

}

return null;

});

});

program.getSourceFiles().some(function (sourceFile) {

// Source file is a default library, or other dependency from another project, that should not be included in

// our bundled output

if (pathUtil.normalize(sourceFile.fileName).indexOf(baseDir + pathUtil.sep) !== 0) {

return;

}

if (excludesMap[filenameToMid(pathUtil.normalize(sourceFile.fileName))]) {

return;

}

sendMessage(` ${sourceFile.fileName}`);

// Source file is already a declaration file so should does not need to be pre-processed by the emitter

if (sourceFile.fileName.slice(-DTSLEN) === '.d.ts') {

writeDeclaration(sourceFile, false);

return;

}

// We can optionally output the main module if there's something to export.

if (options.main && options.main === (options.prefix + filenameToMid(sourceFile.fileName.slice(baseDir.length, -3)))) {

foundMain = true;

ts.forEachChild(sourceFile, function (node) {

mainExportDeclaration = mainExportDeclaration || isNodeKindExportDeclaration(node);

mainExportAssignment = mainExportAssignment || isNodeKindExportAssignment(node);

});

}

const emitOutput = program.emit(sourceFile, writeFile);

if (emitOutput.emitSkipped || emitOutput.diagnostics.length > 0) {

reject(getError(emitOutput.diagnostics

.concat(program.getSemanticDiagnostics(sourceFile))

.concat(program.getSyntacticDiagnostics(sourceFile))

.concat(program.getDeclarationDiagnostics(sourceFile))));

return true;

}

});

if (options.main && !foundMain) {

throw new Error(`main module ${options.main} was not found`);

}

if (options.main) {

output.write(`declare module '${options.name}' {` + eol + indent);

if (compilerOptions.target >= ts.ScriptTarget.ES2015) {

if (mainExportAssignment) {

output.write(`export {default} from '${options.main}';` + eol + indent);

}

if (mainExportDeclaration) {

output.write(`export * from '${options.main}';` + eol);

}

}

else {

output.write(`import main = require('${options.main}');` + eol + indent);

output.write('export = main;' + eol);

}

output.write('}' + eol);

sendMessage(`Aliased main module ${options.name} to ${options.main}`);

}

if (!options.stdout) {

sendMessage(`output to "${options.out}"`);

output.end();

}

});

function writeDeclaration(declarationFile, isOutput) {

// resolving is important for dealting with relative outDirs

const filename = pathUtil.resolve(declarationFile.fileName);

// use the outDir here, not the baseDir, because the declarationFiles are

// outputs of the build process; baseDir points instead to the inputs.

// However we have to account for .d.ts files in our inputs that this code

// is also used for. Also if no outDir is used, the compiled code ends up

// alongside the source, so use baseDir in that case too.

const outputDir = (isOutput && Boolean(outDir)) ? pathUtil.resolve(outDir) : baseDir;

const sourceModuleId = filenameToMid(filename.slice(outputDir.length + 1, -DTSLEN));

const currentModuleId = filenameToMid(filename.slice(outputDir.length + 1, -DTSLEN));

function resolveModuleImport(moduleId) {

const isDeclaredExternalModule = declaredExternalModules.indexOf(moduleId) !== -1;

let resolved;

if (options.resolveModuleImport) {

resolved = options.resolveModuleImport({

importedModuleId: moduleId,

currentModuleId: currentModuleId,

isDeclaredExternalModule: isDeclaredExternalModule

});

}

if (!resolved) {

// resolve relative imports relative to the current module id.

if (moduleId.charAt(0) === '.') {

resolved = filenameToMid(pathUtil.join(pathUtil.dirname(sourceModuleId), moduleId));

}

else {

resolved = moduleId;

}

// prefix the import with options.prefix, so that both non-relative imports

// and relative imports end up prefixed with options.prefix. We only

// do this when no resolveModuleImport function is given so that that

// function has complete control of the imports that get outputed.

// NOTE: we may want to revisit the isDeclaredExternalModule behavior.

// discussion is on https://github.com/SitePen/dts-generator/pull/94

// but currently there's no strong argument against this behavior.

if (Boolean(options.prefix) && !isDeclaredExternalModule) {

resolved = `${options.prefix}/${resolved}`;

}

}

return resolved;

}

/* For some reason, SourceFile.externalModuleIndicator is missing from 1.6+, so having

* to use a sledgehammer on the nut */

if (declarationFile.externalModuleIndicator) {

let resolvedModuleId = sourceModuleId;

if (options.resolveModuleId) {

const resolveModuleIdResult = options.resolveModuleId({

currentModuleId: currentModuleId

});

if (resolveModuleIdResult) {

resolvedModuleId = resolveModuleIdResult;

}

else if (options.prefix) {

resolvedModuleId = `${options.prefix}/${resolvedModuleId}`;

}

}

else if (options.prefix) {

resolvedModuleId = `${options.prefix}/${resolvedModuleId}`;

}

output.write('declare module \'' + resolvedModuleId + '\' {' + eol + indent);

const content = processTree(declarationFile, function (node) {

if (isNodeKindExternalModuleReference(node)) {

// TODO figure out if this branch is possible, and if so, write a test

// that covers it.

const expression = node.expression;

// convert both relative and non-relative module names in import = require(...)

// statements.

const resolved = resolveModuleImport(expression.text);

return ` require('${resolved}')`;

}

else if (node.kind === ts.SyntaxKind.DeclareKeyword) {

return '';

}

else if (isNodeKindStringLiteral(node) && node.parent &&

(isNodeKindExportDeclaration(node.parent) || isNodeKindImportDeclaration(node.parent))) {

// This block of code is modifying the names of imported modules

const text = node.text;

const resolved = resolveModuleImport(text);

if (resolved) {

return ` '${resolved}'`;

}

}

});

output.write(content.replace(nonEmptyLineStart, '$&' + indent));

output.write(eol + '}' + eol);

}

else {

output.write(declarationFile.text);

}

}

}

exports.default = generate;

});

const prelude = `declare type bool = boolean;

declare type i8 = number;

declare type i16 = number;

declare type i32 = number;

declare type isize = number;

declare type u8 = number;

declare type u16 = number;

declare type u32 = number;

declare type usize = number;

declare type f32 = number;

declare type f64 = number;

declare module 'assemblyscript' {

export * from 'assemblyscript/src/index';

}

`;

var path = require("path");

var fs = require("fs");

var stdout = fs.createWriteStream(path.resolve(__dirname, "..", "dist", "assemblyscript.d.ts"));

stdout.write(prelude);

stdout.write = (function(_write) {

return function(...args) {

if (typeof args[0] === "string") {

args[0] = args[0].replace(/\/\/\/ <reference[^>]*>\r?\n/g, "");

}

return _write.apply(stdout, args);

};

})(stdout.write);

module.exports.default({

project: path.resolve(__dirname, "..", "src"),

prefix: "assemblyscript",

exclude: [

"glue/js/index.ts",

"glue/js/node.d.ts"

],

verbose: true,

sendMessage: console.log,

stdout: stdout

});