refactor(compiler): extract a `BaseAotCompilerHost` that is shared between the old and new logic
This commit is contained in:
Tobias Bosch
Hans
parent
9aa05211ff
commit
27d5058e01
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@ -20,159 +20,27 @@ const GENERATED_FILES = /\.ngfactory\.ts$|\.ngstyle\.ts$|\.ngsummary\.ts$/;
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const GENERATED_OR_DTS_FILES = /\.d\.ts$|\.ngfactory\.ts$|\.ngstyle\.ts$|\.ngsummary\.ts$/;
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const GENERATED_OR_DTS_FILES = /\.d\.ts$|\.ngfactory\.ts$|\.ngstyle\.ts$|\.ngsummary\.ts$/;
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const SHALLOW_IMPORT = /^((\w|-)+|(@(\w|-)+(\/(\w|-)+)+))$/;
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const SHALLOW_IMPORT = /^((\w|-)+|(@(\w|-)+(\/(\w|-)+)+))$/;
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export interface CompilerHostContext extends ts.ModuleResolutionHost {
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readResource?(fileName: string): Promise<string>|string;
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assumeFileExists(fileName: string): void;
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}
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export interface MetadataProvider { getMetadata(source: ts.SourceFile): ModuleMetadata|undefined; }
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export interface MetadataProvider { getMetadata(source: ts.SourceFile): ModuleMetadata|undefined; }
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export class CompilerHost implements AotCompilerHost {
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export interface BaseAotCompilerHostContext extends ts.ModuleResolutionHost {
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private isGenDirChildOfRootDir: boolean;
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readResource?(fileName: string): Promise<string>|string;
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protected basePath: string;
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}
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private genDir: string;
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export abstract class BaseAotCompilerHost<C extends BaseAotCompilerHostContext> implements
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AotCompilerHost {
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private resolverCache = new Map<string, ModuleMetadata[]>();
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private resolverCache = new Map<string, ModuleMetadata[]>();
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private flatModuleIndexCache = new Map<string, boolean>();
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private flatModuleIndexCache = new Map<string, boolean>();
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private flatModuleIndexNames = new Set<string>();
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private flatModuleIndexNames = new Set<string>();
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private flatModuleIndexRedirectNames = new Set<string>();
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private flatModuleIndexRedirectNames = new Set<string>();
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private moduleFileNames = new Map<string, string|null>();
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protected resolveModuleNameHost: CompilerHostContext;
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constructor(
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constructor(
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protected program: ts.Program, protected options: AngularCompilerOptions,
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protected program: ts.Program, protected options: AngularCompilerOptions,
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protected context: CompilerHostContext, collectorOptions?: CollectorOptions,
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protected context: C,
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protected metadataProvider: MetadataProvider = new MetadataCollector()) {
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protected metadataProvider: MetadataProvider = new MetadataCollector()) {}
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// normalize the path so that it never ends with '/'.
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this.basePath = path.normalize(path.join(this.options.basePath !, '.')).replace(/\\/g, '/');
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this.genDir = path.normalize(path.join(this.options.genDir !, '.')).replace(/\\/g, '/');
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const genPath: string = path.relative(this.basePath, this.genDir);
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abstract moduleNameToFileName(m: string, containingFile: string): string|null;
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this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
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this.resolveModuleNameHost = Object.create(this.context);
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// When calling ts.resolveModuleName,
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abstract fileNameToModuleName(importedFile: string, containingFile: string): string|null;
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// additional allow checks for .d.ts files to be done based on
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// checks for .ngsummary.json files,
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// so that our codegen depends on fewer inputs and requires to be called
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// less often.
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// This is needed as we use ts.resolveModuleName in reflector_host
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// and it should be able to resolve summary file names.
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this.resolveModuleNameHost.fileExists = (fileName: string): boolean => {
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if (this.context.fileExists(fileName)) {
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return true;
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}
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if (DTS.test(fileName)) {
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const base = fileName.substring(0, fileName.length - 5);
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return this.context.fileExists(base + '.ngsummary.json');
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}
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return false;
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};
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}
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// We use absolute paths on disk as canonical.
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getCanonicalFileName(fileName: string): string { return fileName; }
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moduleNameToFileName(m: string, containingFile: string): string|null {
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const key = m + ':' + (containingFile || '');
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let result: string|null = this.moduleFileNames.get(key) || null;
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if (!result) {
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if (!containingFile || !containingFile.length) {
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if (m.indexOf('.') === 0) {
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throw new Error('Resolution of relative paths requires a containing file.');
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}
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// Any containing file gives the same result for absolute imports
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containingFile = this.getCanonicalFileName(path.join(this.basePath, 'index.ts'));
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}
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m = m.replace(EXT, '');
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const resolved =
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ts.resolveModuleName(
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m, containingFile.replace(/\\/g, '/'), this.options, this.resolveModuleNameHost)
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.resolvedModule;
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result = resolved ? this.getCanonicalFileName(resolved.resolvedFileName) : null;
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this.moduleFileNames.set(key, result);
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}
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return result;
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};
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/**
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* We want a moduleId that will appear in import statements in the generated code.
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* These need to be in a form that system.js can load, so absolute file paths don't work.
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*
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* The `containingFile` is always in the `genDir`, where as the `importedFile` can be in
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* `genDir`, `node_module` or `basePath`. The `importedFile` is either a generated file or
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* existing file.
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*
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* | genDir | node_module | rootDir
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* --------------+----------+-------------+----------
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* generated | relative | relative | n/a
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* existing file | n/a | absolute | relative(*)
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*
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* NOTE: (*) the relative path is computed depending on `isGenDirChildOfRootDir`.
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*/
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fileNameToModuleName(importedFile: string, containingFile: string): string {
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// If a file does not yet exist (because we compile it later), we still need to
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// assume it exists it so that the `resolve` method works!
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if (importedFile !== containingFile && !this.context.fileExists(importedFile)) {
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this.context.assumeFileExists(importedFile);
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}
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containingFile = this.rewriteGenDirPath(containingFile);
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const containingDir = path.dirname(containingFile);
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// drop extension
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importedFile = importedFile.replace(EXT, '');
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const nodeModulesIndex = importedFile.indexOf(NODE_MODULES);
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const importModule = nodeModulesIndex === -1 ?
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null :
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importedFile.substring(nodeModulesIndex + NODE_MODULES.length);
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const isGeneratedFile = IS_GENERATED.test(importedFile);
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if (isGeneratedFile) {
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// rewrite to genDir path
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if (importModule) {
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// it is generated, therefore we do a relative path to the factory
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return this.dotRelative(containingDir, this.genDir + NODE_MODULES + importModule);
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} else {
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// assume that import is also in `genDir`
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importedFile = this.rewriteGenDirPath(importedFile);
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return this.dotRelative(containingDir, importedFile);
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}
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} else {
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// user code import
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if (importModule) {
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return importModule;
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} else {
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if (!this.isGenDirChildOfRootDir) {
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// assume that they are on top of each other.
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importedFile = importedFile.replace(this.basePath, this.genDir);
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}
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if (SHALLOW_IMPORT.test(importedFile)) {
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return importedFile;
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}
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return this.dotRelative(containingDir, importedFile);
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}
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}
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}
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private dotRelative(from: string, to: string): string {
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const rPath: string = path.relative(from, to).replace(/\\/g, '/');
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return rPath.startsWith('.') ? rPath : './' + rPath;
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}
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/**
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* Moves the path into `genDir` folder while preserving the `node_modules` directory.
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*/
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private rewriteGenDirPath(filepath: string) {
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const nodeModulesIndex = filepath.indexOf(NODE_MODULES);
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if (nodeModulesIndex !== -1) {
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// If we are in node_modulse, transplant them into `genDir`.
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return path.join(this.genDir, filepath.substring(nodeModulesIndex));
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} else {
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// pretend that containing file is on top of the `genDir` to normalize the paths.
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// we apply the `genDir` => `rootDir` delta through `rootDirPrefix` later.
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return filepath.replace(this.basePath, this.genDir);
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}
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}
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protected getSourceFile(filePath: string): ts.SourceFile {
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protected getSourceFile(filePath: string): ts.SourceFile {
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const sf = this.program.getSourceFile(filePath);
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const sf = this.program.getSourceFile(filePath);
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@ -294,29 +162,6 @@ export class CompilerHost implements AotCompilerHost {
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return true;
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return true;
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}
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}
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calculateEmitPath(filePath: string): string {
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// Write codegen in a directory structure matching the sources.
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let root = this.options.basePath !;
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for (const eachRootDir of this.options.rootDirs || []) {
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if (this.options.trace) {
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console.error(`Check if ${filePath} is under rootDirs element ${eachRootDir}`);
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}
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if (path.relative(eachRootDir, filePath).indexOf('.') !== 0) {
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root = eachRootDir;
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}
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}
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// transplant the codegen path to be inside the `genDir`
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let relativePath: string = path.relative(root, filePath);
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while (relativePath.startsWith('..' + path.sep)) {
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// Strip out any `..` path such as: `../node_modules/@foo` as we want to put everything
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// into `genDir`.
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relativePath = relativePath.substr(3);
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}
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return path.join(this.options.genDir !, relativePath);
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}
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private hasBundleIndex(filePath: string): boolean {
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private hasBundleIndex(filePath: string): boolean {
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const checkBundleIndex = (directory: string): boolean => {
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const checkBundleIndex = (directory: string): boolean => {
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let result = this.flatModuleIndexCache.get(directory);
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let result = this.flatModuleIndexCache.get(directory);
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@ -375,6 +220,180 @@ export class CompilerHost implements AotCompilerHost {
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}
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}
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}
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}
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export interface CompilerHostContext extends ts.ModuleResolutionHost {
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readResource?(fileName: string): Promise<string>|string;
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assumeFileExists(fileName: string): void;
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}
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export class CompilerHost extends BaseAotCompilerHost<CompilerHostContext> {
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protected basePath: string;
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private moduleFileNames = new Map<string, string|null>();
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private isGenDirChildOfRootDir: boolean;
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private genDir: string;
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protected resolveModuleNameHost: CompilerHostContext;
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constructor(
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program: ts.Program, options: AngularCompilerOptions, context: CompilerHostContext,
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collectorOptions?: CollectorOptions,
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metadataProvider: MetadataProvider = new MetadataCollector(collectorOptions)) {
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super(program, options, context, metadataProvider);
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// normalize the path so that it never ends with '/'.
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this.basePath = path.normalize(path.join(this.options.basePath !, '.')).replace(/\\/g, '/');
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this.genDir = path.normalize(path.join(this.options.genDir !, '.')).replace(/\\/g, '/');
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const genPath: string = path.relative(this.basePath, this.genDir);
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this.isGenDirChildOfRootDir = genPath === '' || !genPath.startsWith('..');
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this.resolveModuleNameHost = Object.create(this.context);
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// When calling ts.resolveModuleName,
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// additional allow checks for .d.ts files to be done based on
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// checks for .ngsummary.json files,
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// so that our codegen depends on fewer inputs and requires to be called
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// less often.
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// This is needed as we use ts.resolveModuleName in reflector_host
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// and it should be able to resolve summary file names.
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this.resolveModuleNameHost.fileExists = (fileName: string): boolean => {
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if (this.context.fileExists(fileName)) {
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return true;
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}
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if (DTS.test(fileName)) {
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const base = fileName.substring(0, fileName.length - 5);
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return this.context.fileExists(base + '.ngsummary.json');
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}
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return false;
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};
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}
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calculateEmitPath(filePath: string): string {
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// Write codegen in a directory structure matching the sources.
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let root = this.options.basePath !;
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for (const eachRootDir of this.options.rootDirs || []) {
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if (this.options.trace) {
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console.error(`Check if ${filePath} is under rootDirs element ${eachRootDir}`);
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}
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if (path.relative(eachRootDir, filePath).indexOf('.') !== 0) {
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root = eachRootDir;
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}
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}
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// transplant the codegen path to be inside the `genDir`
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let relativePath: string = path.relative(root, filePath);
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while (relativePath.startsWith('..' + path.sep)) {
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// Strip out any `..` path such as: `../node_modules/@foo` as we want to put everything
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// into `genDir`.
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relativePath = relativePath.substr(3);
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}
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return path.join(this.options.genDir !, relativePath);
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}
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// We use absolute paths on disk as canonical.
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getCanonicalFileName(fileName: string): string { return fileName; }
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moduleNameToFileName(m: string, containingFile: string): string|null {
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const key = m + ':' + (containingFile || '');
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let result: string|null = this.moduleFileNames.get(key) || null;
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if (!result) {
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if (!containingFile || !containingFile.length) {
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if (m.indexOf('.') === 0) {
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throw new Error('Resolution of relative paths requires a containing file.');
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}
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// Any containing file gives the same result for absolute imports
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containingFile = this.getCanonicalFileName(path.join(this.basePath, 'index.ts'));
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}
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m = m.replace(EXT, '');
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const resolved =
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ts.resolveModuleName(
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m, containingFile.replace(/\\/g, '/'), this.options, this.resolveModuleNameHost)
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.resolvedModule;
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result = resolved ? this.getCanonicalFileName(resolved.resolvedFileName) : null;
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this.moduleFileNames.set(key, result);
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}
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return result;
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};
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/**
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* We want a moduleId that will appear in import statements in the generated code.
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* These need to be in a form that system.js can load, so absolute file paths don't work.
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*
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* The `containingFile` is always in the `genDir`, where as the `importedFile` can be in
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* `genDir`, `node_module` or `basePath`. The `importedFile` is either a generated file or
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* existing file.
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*
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* | genDir | node_module | rootDir
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* --------------+----------+-------------+----------
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* generated | relative | relative | n/a
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* existing file | n/a | absolute | relative(*)
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*
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* NOTE: (*) the relative path is computed depending on `isGenDirChildOfRootDir`.
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*/
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fileNameToModuleName(importedFile: string, containingFile: string): string {
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// If a file does not yet exist (because we compile it later), we still need to
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// assume it exists it so that the `resolve` method works!
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if (importedFile !== containingFile && !this.context.fileExists(importedFile)) {
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this.context.assumeFileExists(importedFile);
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}
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containingFile = this.rewriteGenDirPath(containingFile);
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const containingDir = path.dirname(containingFile);
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// drop extension
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importedFile = importedFile.replace(EXT, '');
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const nodeModulesIndex = importedFile.indexOf(NODE_MODULES);
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const importModule = nodeModulesIndex === -1 ?
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null :
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importedFile.substring(nodeModulesIndex + NODE_MODULES.length);
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const isGeneratedFile = IS_GENERATED.test(importedFile);
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if (isGeneratedFile) {
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// rewrite to genDir path
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if (importModule) {
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// it is generated, therefore we do a relative path to the factory
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return this.dotRelative(containingDir, this.genDir + NODE_MODULES + importModule);
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} else {
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// assume that import is also in `genDir`
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importedFile = this.rewriteGenDirPath(importedFile);
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return this.dotRelative(containingDir, importedFile);
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}
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} else {
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// user code import
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if (importModule) {
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return importModule;
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} else {
|
||||||
|
if (!this.isGenDirChildOfRootDir) {
|
||||||
|
// assume that they are on top of each other.
|
||||||
|
importedFile = importedFile.replace(this.basePath, this.genDir);
|
||||||
|
}
|
||||||
|
if (SHALLOW_IMPORT.test(importedFile)) {
|
||||||
|
return importedFile;
|
||||||
|
}
|
||||||
|
return this.dotRelative(containingDir, importedFile);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Moves the path into `genDir` folder while preserving the `node_modules` directory.
|
||||||
|
*/
|
||||||
|
private rewriteGenDirPath(filepath: string) {
|
||||||
|
const nodeModulesIndex = filepath.indexOf(NODE_MODULES);
|
||||||
|
if (nodeModulesIndex !== -1) {
|
||||||
|
// If we are in node_modulse, transplant them into `genDir`.
|
||||||
|
return path.join(this.genDir, filepath.substring(nodeModulesIndex));
|
||||||
|
} else {
|
||||||
|
// pretend that containing file is on top of the `genDir` to normalize the paths.
|
||||||
|
// we apply the `genDir` => `rootDir` delta through `rootDirPrefix` later.
|
||||||
|
return filepath.replace(this.basePath, this.genDir);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
private dotRelative(from: string, to: string): string {
|
||||||
|
const rPath: string = path.relative(from, to).replace(/\\/g, '/');
|
||||||
|
return rPath.startsWith('.') ? rPath : './' + rPath;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
export class CompilerHostContextAdapter {
|
export class CompilerHostContextAdapter {
|
||||||
protected assumedExists: {[fileName: string]: boolean} = {};
|
protected assumedExists: {[fileName: string]: boolean} = {};
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -6,7 +6,7 @@
|
||||||
* found in the LICENSE file at https://angular.io/license
|
* found in the LICENSE file at https://angular.io/license
|
||||||
*/
|
*/
|
||||||
|
|
||||||
import {AotCompiler, AotCompilerOptions, GeneratedFile, NgAnalyzedModules, createAotCompiler, getParseErrors, isSyntaxError, toTypeScript} from '@angular/compiler';
|
import {AotCompiler, AotCompilerHost, AotCompilerOptions, GeneratedFile, NgAnalyzedModules, createAotCompiler, getParseErrors, isSyntaxError, toTypeScript} from '@angular/compiler';
|
||||||
import {MissingTranslationStrategy} from '@angular/core';
|
import {MissingTranslationStrategy} from '@angular/core';
|
||||||
import {createBundleIndexHost} from '@angular/tsc-wrapped';
|
import {createBundleIndexHost} from '@angular/tsc-wrapped';
|
||||||
import * as fs from 'fs';
|
import * as fs from 'fs';
|
||||||
|
|
@ -14,7 +14,7 @@ import * as path from 'path';
|
||||||
import * as tsickle from 'tsickle';
|
import * as tsickle from 'tsickle';
|
||||||
import * as ts from 'typescript';
|
import * as ts from 'typescript';
|
||||||
|
|
||||||
import {CompilerHost as AotCompilerHost} from '../compiler_host';
|
import {BaseAotCompilerHost} from '../compiler_host';
|
||||||
import {TypeChecker} from '../diagnostics/check_types';
|
import {TypeChecker} from '../diagnostics/check_types';
|
||||||
|
|
||||||
import {CompilerHost, CompilerOptions, Diagnostic, EmitFlags, EmitResult, Program} from './api';
|
import {CompilerHost, CompilerOptions, Diagnostic, EmitFlags, EmitResult, Program} from './api';
|
||||||
|
|
@ -73,11 +73,8 @@ class AngularCompilerProgram implements Program {
|
||||||
.map(sf => sf.fileName)
|
.map(sf => sf.fileName)
|
||||||
.filter(f => !f.match(/\.ngfactory\.[\w.]+$|\.ngstyle\.[\w.]+$|\.ngsummary\.[\w.]+$/));
|
.filter(f => !f.match(/\.ngfactory\.[\w.]+$|\.ngstyle\.[\w.]+$|\.ngsummary\.[\w.]+$/));
|
||||||
this.metadataCache = new LowerMetadataCache({quotedNames: true}, !!options.strictMetadataEmit);
|
this.metadataCache = new LowerMetadataCache({quotedNames: true}, !!options.strictMetadataEmit);
|
||||||
this.aotCompilerHost = new AotCompilerHost(
|
this.aotCompilerHost =
|
||||||
this.tsProgram, options, host, /* collectorOptions */ undefined, this.metadataCache);
|
new AotCompilerHostImpl(this.tsProgram, options, host, this.metadataCache);
|
||||||
if (host.readResource) {
|
|
||||||
this.aotCompilerHost.loadResource = host.readResource.bind(host);
|
|
||||||
}
|
|
||||||
|
|
||||||
const aotOptions = getAotCompilerOptions(options);
|
const aotOptions = getAotCompilerOptions(options);
|
||||||
this.compiler = createAotCompiler(this.aotCompilerHost, aotOptions).compiler;
|
this.compiler = createAotCompiler(this.aotCompilerHost, aotOptions).compiler;
|
||||||
|
|
@ -309,6 +306,16 @@ class AngularCompilerProgram implements Program {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
class AotCompilerHostImpl extends BaseAotCompilerHost<CompilerHost> {
|
||||||
|
moduleNameToFileName(m: string, containingFile: string): string|null {
|
||||||
|
return this.context.moduleNameToFileName(m, containingFile);
|
||||||
|
}
|
||||||
|
|
||||||
|
fileNameToModuleName(importedFile: string, containingFile: string): string|null {
|
||||||
|
return this.context.fileNameToModuleName(importedFile, containingFile);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
export function createProgram(
|
export function createProgram(
|
||||||
{rootNames, options, host, oldProgram}:
|
{rootNames, options, host, oldProgram}:
|
||||||
{rootNames: string[], options: CompilerOptions, host: CompilerHost, oldProgram?: Program}):
|
{rootNames: string[], options: CompilerOptions, host: CompilerHost, oldProgram?: Program}):
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue