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Clean up code for getting emitted files

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This commit is contained in:
Andy Hanson 2017-01-20 08:12:00 -08:00
parent 0a535f0bf7
commit 8886cefe58
7 changed files with 98 additions and 142 deletions
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4
src/compiler/emitter.ts
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@ -73,7 +73,7 @@ namespace ts {
// Emit each output file
performance.mark("beforePrint");
forEachTransformedEmitFile(host, transformed, emitFile, emitOnlyDtsFiles);
forEachEmittedFile(host, transformed, emitFile, emitOnlyDtsFiles);
performance.measure("printTime", "beforePrint");
// Clean up emit nodes on parse tree
@ -88,7 +88,7 @@ namespace ts {
sourceMaps: sourceMapDataList
};
function emitFile(jsFilePath: string, sourceMapFilePath: string, declarationFilePath: string, sourceFiles: SourceFile[], isBundledEmit: boolean) {
function emitFile({ jsFilePath, sourceMapFilePath, declarationFilePath }: EmitFileNames, sourceFiles: SourceFile[], isBundledEmit: boolean) {
// Make sure not to write js file and source map file if any of them cannot be written
if (!host.isEmitBlocked(jsFilePath) && !compilerOptions.noEmit) {
if (!emitOnlyDtsFiles) {

2
src/compiler/program.ts
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@ -439,7 +439,7 @@ namespace ts {
function getCommonSourceDirectory() {
if (commonSourceDirectory === undefined) {
const emittedFiles = filterSourceFilesInDirectory(files, isSourceFileFromExternalLibrary);
const emittedFiles = filter(files, file => sourceFileMayBeEmitted(file, options, isSourceFileFromExternalLibrary));
if (options.rootDir && checkSourceFilesBelongToPath(emittedFiles, options.rootDir)) {
// If a rootDir is specified and is valid use it as the commonSourceDirectory
commonSourceDirectory = getNormalizedAbsolutePath(options.rootDir, currentDirectory);

186
src/compiler/utilities.ts
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@ -2568,108 +2568,25 @@ namespace ts {
* @param host An EmitHost.
* @param targetSourceFile An optional target source file to emit.
*/
export function getSourceFilesToEmit(host: EmitHost, targetSourceFile?: SourceFile) {
export function getSourceFilesToEmit(host: EmitHost, targetSourceFile?: SourceFile): SourceFile[] {
const options = host.getCompilerOptions();
const isSourceFileFromExternalLibrary = (file: SourceFile) => host.isSourceFileFromExternalLibrary(file);
if (options.outFile || options.out) {
const moduleKind = getEmitModuleKind(options);
const moduleEmitEnabled = moduleKind === ModuleKind.AMD || moduleKind === ModuleKind.System;
const sourceFiles = getAllEmittableSourceFiles();
// Can emit only sources that are not declaration file and are either non module code or module with --module or --target es6 specified
return filter(sourceFiles, moduleEmitEnabled ? isNonDeclarationFile : isBundleEmitNonExternalModule);
return filter(host.getSourceFiles(), sourceFile =>
(moduleEmitEnabled || !isExternalModule(sourceFile)) && sourceFileMayBeEmitted(sourceFile, options, isSourceFileFromExternalLibrary));
}
else {
const sourceFiles = targetSourceFile === undefined ? getAllEmittableSourceFiles() : [targetSourceFile];
return filterSourceFilesInDirectory(sourceFiles, file => host.isSourceFileFromExternalLibrary(file));
}
function getAllEmittableSourceFiles() {
return options.noEmitForJsFiles ? filter(host.getSourceFiles(), sourceFile => !isSourceFileJavaScript(sourceFile)) : host.getSourceFiles();
const sourceFiles = targetSourceFile === undefined ? host.getSourceFiles() : [targetSourceFile];
return filter(sourceFiles, sourceFile => sourceFileMayBeEmitted(sourceFile, options, isSourceFileFromExternalLibrary));
}
}
/** Don't call this for `--outFile`, just for `--outDir` or plain emit. */
export function filterSourceFilesInDirectory(sourceFiles: SourceFile[], isSourceFileFromExternalLibrary: (file: SourceFile) => boolean): SourceFile[] {
return filter(sourceFiles, file => shouldEmitInDirectory(file, isSourceFileFromExternalLibrary));
}
function isNonDeclarationFile(sourceFile: SourceFile) {
return !isDeclarationFile(sourceFile);
}
/**
* Whether a file should be emitted in a non-`--outFile` case.
* Don't emit if source file is a declaration file, or was located under node_modules
*/
function shouldEmitInDirectory(sourceFile: SourceFile, isSourceFileFromExternalLibrary: (file: SourceFile) => boolean): boolean {
return isNonDeclarationFile(sourceFile) && !isSourceFileFromExternalLibrary(sourceFile);
}
function isBundleEmitNonExternalModule(sourceFile: SourceFile) {
return isNonDeclarationFile(sourceFile) && !isExternalModule(sourceFile);
}
/**
* Iterates over each source file to emit. The source files are expected to have been
* transformed for use by the pretty printer.
*
* Originally part of `forEachExpectedEmitFile`, this functionality was extracted to support
* transformations.
*
* @param host An EmitHost.
* @param sourceFiles The transformed source files to emit.
* @param action The action to execute.
*/
export function forEachTransformedEmitFile(host: EmitHost, sourceFiles: SourceFile[],
action: (jsFilePath: string, sourceMapFilePath: string, declarationFilePath: string, sourceFiles: SourceFile[], isBundledEmit: boolean) => void,
emitOnlyDtsFiles?: boolean) {
const options = host.getCompilerOptions();
// Emit on each source file
if (options.outFile || options.out) {
onBundledEmit(sourceFiles);
}
else {
for (const sourceFile of sourceFiles) {
// Don't emit if source file is a declaration file, or was located under node_modules
if (!isDeclarationFile(sourceFile) && !host.isSourceFileFromExternalLibrary(sourceFile)) {
onSingleFileEmit(host, sourceFile);
}
}
}
function onSingleFileEmit(host: EmitHost, sourceFile: SourceFile) {
// JavaScript files are always LanguageVariant.JSX, as JSX syntax is allowed in .js files also.
// So for JavaScript files, '.jsx' is only emitted if the input was '.jsx', and JsxEmit.Preserve.
// For TypeScript, the only time to emit with a '.jsx' extension, is on JSX input, and JsxEmit.Preserve
let extension = ".js";
if (options.jsx === JsxEmit.Preserve) {
if (isSourceFileJavaScript(sourceFile)) {
if (fileExtensionIs(sourceFile.fileName, ".jsx")) {
extension = ".jsx";
}
}
else if (sourceFile.languageVariant === LanguageVariant.JSX) {
// TypeScript source file preserving JSX syntax
extension = ".jsx";
}
}
const jsFilePath = getOwnEmitOutputFilePath(sourceFile, host, extension);
const sourceMapFilePath = getSourceMapFilePath(jsFilePath, options);
const declarationFilePath = !isSourceFileJavaScript(sourceFile) && (options.declaration || emitOnlyDtsFiles) ? getDeclarationEmitOutputFilePath(sourceFile, host) : undefined;
action(jsFilePath, sourceMapFilePath, declarationFilePath, [sourceFile], /*isBundledEmit*/ false);
}
function onBundledEmit(sourceFiles: SourceFile[]) {
if (sourceFiles.length) {
const jsFilePath = options.outFile || options.out;
const sourceMapFilePath = getSourceMapFilePath(jsFilePath, options);
const declarationFilePath = options.declaration ? removeFileExtension(jsFilePath) + ".d.ts" : undefined;
action(jsFilePath, sourceMapFilePath, declarationFilePath, sourceFiles, /*isBundledEmit*/ true);
}
}
}
function getSourceMapFilePath(jsFilePath: string, options: CompilerOptions) {
return options.sourceMap ? jsFilePath + ".map" : undefined;
/** Don't call this for `--outFile`, just for `--outDir` or plain emit. `--outFile` needs additional checks. */
export function sourceFileMayBeEmitted(sourceFile: SourceFile, options: CompilerOptions, isSourceFileFromExternalLibrary: (file: SourceFile) => boolean) {
return !(options.noEmitForJsFiles && isSourceFileJavaScript(sourceFile)) && !isDeclarationFile(sourceFile) && !isSourceFileFromExternalLibrary(sourceFile);
}
/**
@ -2685,64 +2602,55 @@ namespace ts {
action: (emitFileNames: EmitFileNames, sourceFiles: SourceFile[], isBundledEmit: boolean, emitOnlyDtsFiles: boolean) => void,
targetSourceFile?: SourceFile,
emitOnlyDtsFiles?: boolean) {
forEachEmittedFile(host, getSourceFilesToEmit(host, targetSourceFile), action, emitOnlyDtsFiles);
}
/**
* Iterates over each source file to emit.
*/
export function forEachEmittedFile(host: EmitHost, sourceFiles: SourceFile[],
action: (emitFileNames: EmitFileNames, sourceFiles: SourceFile[], isBundledEmit: boolean, emitOnlyDtsFiles: boolean) => void,
emitOnlyDtsFiles?: boolean) {
const options = host.getCompilerOptions();
// Emit on each source file
if (options.outFile || options.out) {
onBundledEmit(host);
if (sourceFiles.length) {
const jsFilePath = options.outFile || options.out;
const sourceMapFilePath = getSourceMapFilePath(jsFilePath, options);
const declarationFilePath = options.declaration ? removeFileExtension(jsFilePath) + ".d.ts" : undefined;
action({ jsFilePath, sourceMapFilePath, declarationFilePath }, sourceFiles, /*isBundledEmit*/true, emitOnlyDtsFiles);
}
}
else {
const sourceFiles = targetSourceFile === undefined ? getSourceFilesToEmit(host) : [targetSourceFile];
for (const sourceFile of sourceFiles) {
if (shouldEmitInDirectory(sourceFile, file => host.isSourceFileFromExternalLibrary(file))) {
onSingleFileEmit(host, sourceFile);
}
const options = host.getCompilerOptions();
const jsFilePath = getOwnEmitOutputFilePath(sourceFile, host, getOutputExtension(sourceFile, options));
const sourceMapFilePath = getSourceMapFilePath(jsFilePath, options);
const declarationFilePath = !isSourceFileJavaScript(sourceFile) && (emitOnlyDtsFiles || options.declaration) ? getDeclarationEmitOutputFilePath(sourceFile, host) : undefined;
action({ jsFilePath, sourceMapFilePath, declarationFilePath }, [sourceFile], /*isBundledEmit*/false, emitOnlyDtsFiles);
}
}
}
function onSingleFileEmit(host: EmitHost, sourceFile: SourceFile) {
// JavaScript files are always LanguageVariant.JSX, as JSX syntax is allowed in .js files also.
// So for JavaScript files, '.jsx' is only emitted if the input was '.jsx', and JsxEmit.Preserve.
// For TypeScript, the only time to emit with a '.jsx' extension, is on JSX input, and JsxEmit.Preserve
let extension = ".js";
if (options.jsx === JsxEmit.Preserve) {
if (isSourceFileJavaScript(sourceFile)) {
if (fileExtensionIs(sourceFile.fileName, ".jsx")) {
extension = ".jsx";
}
}
else if (sourceFile.languageVariant === LanguageVariant.JSX) {
// TypeScript source file preserving JSX syntax
extension = ".jsx";
}
}
const jsFilePath = getOwnEmitOutputFilePath(sourceFile, host, extension);
const declarationFilePath = !isSourceFileJavaScript(sourceFile) && (emitOnlyDtsFiles || options.declaration) ? getDeclarationEmitOutputFilePath(sourceFile, host) : undefined;
const emitFileNames: EmitFileNames = {
jsFilePath,
sourceMapFilePath: getSourceMapFilePath(jsFilePath, options),
declarationFilePath
};
action(emitFileNames, [sourceFile], /*isBundledEmit*/false, emitOnlyDtsFiles);
}
function getSourceMapFilePath(jsFilePath: string, options: CompilerOptions) {
return options.sourceMap ? jsFilePath + ".map" : undefined;
}
function onBundledEmit(host: EmitHost) {
// Can emit only sources that are not declaration file and are either non module code or module with
// --module or --target es6 specified. Files included by searching under node_modules are also not emitted.
const bundledSources = filter(getSourceFilesToEmit(host),
sourceFile => !isDeclarationFile(sourceFile) &&
!host.isSourceFileFromExternalLibrary(sourceFile) &&
(!isExternalModule(sourceFile) ||
!!getEmitModuleKind(options)));
if (bundledSources.length) {
const jsFilePath = options.outFile || options.out;
const emitFileNames: EmitFileNames = {
jsFilePath,
sourceMapFilePath: getSourceMapFilePath(jsFilePath, options),
declarationFilePath: options.declaration ? removeFileExtension(jsFilePath) + ".d.ts" : undefined
};
action(emitFileNames, bundledSources, /*isBundledEmit*/true, emitOnlyDtsFiles);
// JavaScript files are always LanguageVariant.JSX, as JSX syntax is allowed in .js files also.
// So for JavaScript files, '.jsx' is only emitted if the input was '.jsx', and JsxEmit.Preserve.
// For TypeScript, the only time to emit with a '.jsx' extension, is on JSX input, and JsxEmit.Preserve
function getOutputExtension(sourceFile: SourceFile, options: CompilerOptions): string {
if (options.jsx === JsxEmit.Preserve) {
if (isSourceFileJavaScript(sourceFile)) {
if (fileExtensionIs(sourceFile.fileName, ".jsx")) {
return ".jsx";
}
}
else if (sourceFile.languageVariant === LanguageVariant.JSX) {
// TypeScript source file preserving JSX syntax
return ".jsx";
}
}
return ".js";
}
export function getSourceFilePathInNewDir(sourceFile: SourceFile, host: EmitHost, newDirPath: string) {

20
tests/baselines/reference/noBundledEmitFromNodeModules.js Normal file
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@ -0,0 +1,20 @@
//// [tests/cases/compiler/noBundledEmitFromNodeModules.ts] ////
//// [index.ts]
export class C {}
//// [a.ts]
import { C } from "projB";
//// [out.js]
System.register("a", [], function (exports_1, context_1) {
"use strict";
var __moduleName = context_1 && context_1.id;
return {
setters: [],
execute: function () {
}
};
});

9
tests/baselines/reference/noBundledEmitFromNodeModules.symbols Normal file
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@ -0,0 +1,9 @@
=== /a.ts ===
import { C } from "projB";
>C : Symbol(C, Decl(a.ts, 0, 8))
=== /node_modules/projB/index.ts ===
export class C {}
>C : Symbol(C, Decl(index.ts, 0, 0))

9
tests/baselines/reference/noBundledEmitFromNodeModules.types Normal file
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@ -0,0 +1,9 @@
=== /a.ts ===
import { C } from "projB";
>C : typeof C
=== /node_modules/projB/index.ts ===
export class C {}
>C : C

10
tests/cases/compiler/noBundledEmitFromNodeModules.ts Normal file
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@ -0,0 +1,10 @@
// @outFile: out.js
// @module: system
// @moduleResolution: node
// @noImplicitReferences: true
// @fileName: /node_modules/projB/index.ts
export class C {}
// @fileName: /a.ts
import { C } from "projB";