25 lines
992 B
TypeScript
25 lines
992 B
TypeScript
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import * as ts from 'typescript';
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import {CompilerHost, CompilerOptions, Program} from './api';
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import {createModuleFilenameResolver} from './module_filename_resolver';
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export {createProgram} from './program';
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export {createModuleFilenameResolver};
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export function createHost({tsHost, options}: {tsHost: ts.CompilerHost, options: CompilerOptions}):
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CompilerHost {
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const resolver = createModuleFilenameResolver(tsHost, options);
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const host = Object.create(tsHost);
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host.moduleNameToFileName = resolver.moduleNameToFileName.bind(resolver);
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host.fileNameToModuleName = resolver.fileNameToModuleName.bind(resolver);
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host.getNgCanonicalFileName = resolver.getNgCanonicalFileName.bind(resolver);
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host.assumeFileExists = resolver.assumeFileExists.bind(resolver);
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// Make sure we do not `host.realpath()` from TS as we do not want to resolve symlinks.
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// https://github.com/Microsoft/TypeScript/issues/9552
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host.realpath = (fileName: string) => fileName;
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return host;
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}
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