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73 lines
2.9 KiB
73 lines
2.9 KiB
4 years ago
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function resolveModuleName(request, issuer, compilerOptions, moduleResolutionHost, parentResolver) {
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const pnp = require(`pnpapi`);
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const [, prefix = ``, packageName = ``, rest] = request.match(/^(!(?:.*!)+)?((?!\.{0,2}\/)(?:@[^\/]+\/)?[^\/]+)?(.*)/);
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let failedLookupLocations = [];
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// First we try the resolution on "@types/package-name" starting from the project root
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if (packageName) {
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const typesPackagePath = `@types/${packageName.replace(/\//g, `__`)}${rest}`;
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let unqualified;
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try {
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unqualified = pnp.resolveToUnqualified(typesPackagePath, issuer, {considerBuiltins: false});
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} catch (error) {}
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if (unqualified) {
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// TypeScript checks whether the directory of the candidate is a directory
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// which may cause issues w/ zip loading (since the zip archive is still
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// reported as a file). To workaround this we add a trailing slash, which
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// causes TypeScript to assume the parent is a directory.
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if (moduleResolutionHost.directoryExists && moduleResolutionHost.directoryExists(unqualified))
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unqualified += `/`;
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const finalResolution = parentResolver(unqualified, issuer, compilerOptions, moduleResolutionHost);
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if (finalResolution.resolvedModule || finalResolution.resolvedTypeReferenceDirective) {
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return finalResolution;
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} else {
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failedLookupLocations = failedLookupLocations.concat(finalResolution.failedLookupLocations);
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}
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}
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}
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// Then we try on "package-name", this time starting from the package that makes the request
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if (true) {
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const regularPackagePath = `${packageName || ``}${rest}`;
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let unqualified;
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try {
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unqualified = pnp.resolveToUnqualified(regularPackagePath, issuer, {considerBuiltins: false});
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} catch (error) {}
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if (unqualified) {
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// TypeScript checks whether the directory of the candidate is a directory
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// which may cause issues w/ zip loading (since the zip archive is still
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// reported as a file). To workaround this we add a trailing slash, which
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// causes TypeScript to assume the parent is a directory.
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if (moduleResolutionHost.directoryExists && moduleResolutionHost.directoryExists(unqualified))
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unqualified += `/`;
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const finalResolution = parentResolver(unqualified, issuer, compilerOptions, moduleResolutionHost);
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if (finalResolution.resolvedModule || finalResolution.resolvedTypeReferenceDirective) {
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return finalResolution;
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} else {
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failedLookupLocations = failedLookupLocations.concat(finalResolution.failedLookupLocations);
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}
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}
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}
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return {
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resolvedModule: undefined,
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resolvedTypeReferenceDirective: undefined,
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failedLookupLocations,
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};
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}
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module.exports.resolveModuleName = process.versions.pnp
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? resolveModuleName
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: (moduleName, containingFile, compilerOptions, compilerHost, resolveModuleName) =>
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resolveModuleName(moduleName, containingFile, compilerOptions, compilerHost);
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