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Make specifier generation from export map information conditional on module resolution mode (#46670)

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This commit is contained in:
Wesley Wigham
2021-11-03 13:10:44 -07:00
committed by GitHub
parent 7264cf7db5
commit d53630fac3
5 changed files with 175 additions and 7 deletions
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16
src/compiler/moduleSpecifiers.ts
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@@ -707,13 +707,15 @@ namespace ts.moduleSpecifiers {
if (host.fileExists(packageJsonPath)) {
const packageJsonContent = JSON.parse(host.readFile!(packageJsonPath)!);
// TODO: Inject `require` or `import` condition based on the intended import mode
const fromExports = packageJsonContent.exports && typeof packageJsonContent.name === "string" ? tryGetModuleNameFromExports(options, path, packageRootPath, packageJsonContent.name, packageJsonContent.exports, ["node", "types"]) : undefined;
if (fromExports) {
const withJsExtension = !hasTSFileExtension(fromExports.moduleFileToTry) ? fromExports : { moduleFileToTry: removeFileExtension(fromExports.moduleFileToTry) + tryGetJSExtensionForFile(fromExports.moduleFileToTry, options) };
return { ...withJsExtension, verbatimFromExports: true };
}
if (packageJsonContent.exports) {
return { moduleFileToTry: path, blockedByExports: true };
if (getEmitModuleResolutionKind(options) === ModuleResolutionKind.Node12 || getEmitModuleResolutionKind(options) === ModuleResolutionKind.NodeNext) {
const fromExports = packageJsonContent.exports && typeof packageJsonContent.name === "string" ? tryGetModuleNameFromExports(options, path, packageRootPath, packageJsonContent.name, packageJsonContent.exports, ["node", "types"]) : undefined;
if (fromExports) {
const withJsExtension = !hasTSFileExtension(fromExports.moduleFileToTry) ? fromExports : { moduleFileToTry: removeFileExtension(fromExports.moduleFileToTry) + tryGetJSExtensionForFile(fromExports.moduleFileToTry, options) };
return { ...withJsExtension, verbatimFromExports: true };
}
if (packageJsonContent.exports) {
return { moduleFileToTry: path, blockedByExports: true };
}
}
const versionPaths = packageJsonContent.typesVersions
? getPackageJsonTypesVersionsPaths(packageJsonContent.typesVersions)