Function getLocalModuleSpecifier

test/fixtures/snapshot/typescript.js:122130–122191

(moduleFileName, info, compilerOptions, host, _a)

            return { getCanonicalFileName: getCanonicalFileName, importingSourceFileName: importingSourceFileName, sourceDirectory: sourceDirectory };
        }
        function getLocalModuleSpecifier(moduleFileName, info, compilerOptions, host, _a) {
            var ending = _a.ending, relativePreference = _a.relativePreference;
            var baseUrl = compilerOptions.baseUrl, paths = compilerOptions.paths, rootDirs = compilerOptions.rootDirs;
            var sourceDirectory = info.sourceDirectory, getCanonicalFileName = info.getCanonicalFileName;
            var relativePath = rootDirs && tryGetModuleNameFromRootDirs(rootDirs, moduleFileName, sourceDirectory, getCanonicalFileName, ending, compilerOptions) ||
                removeExtensionAndIndexPostFix(ts.ensurePathIsNonModuleName(ts.getRelativePathFromDirectory(sourceDirectory, moduleFileName, getCanonicalFileName)), ending, compilerOptions);
            if (!baseUrl && !paths || relativePreference === 0 /* RelativePreference.Relative */) {
                return relativePath;
            }
            var baseDirectory = ts.getNormalizedAbsolutePath(ts.getPathsBasePath(compilerOptions, host) || baseUrl, host.getCurrentDirectory());
            var relativeToBaseUrl = getRelativePathIfInDirectory(moduleFileName, baseDirectory, getCanonicalFileName);
            if (!relativeToBaseUrl) {
                return relativePath;
            }
            var importRelativeToBaseUrl = removeExtensionAndIndexPostFix(relativeToBaseUrl, ending, compilerOptions);
            var fromPaths = paths && tryGetModuleNameFromPaths(ts.removeFileExtension(relativeToBaseUrl), importRelativeToBaseUrl, paths);
            var nonRelative = fromPaths === undefined && baseUrl !== undefined ? importRelativeToBaseUrl : fromPaths;
            if (!nonRelative) {
                return relativePath;
            }
            if (relativePreference === 1 /* RelativePreference.NonRelative */) {
                return nonRelative;
            }
            if (relativePreference === 3 /* RelativePreference.ExternalNonRelative */) {
                var projectDirectory = compilerOptions.configFilePath ?
                    ts.toPath(ts.getDirectoryPath(compilerOptions.configFilePath), host.getCurrentDirectory(), info.getCanonicalFileName) :
                    info.getCanonicalFileName(host.getCurrentDirectory());
                var modulePath = ts.toPath(moduleFileName, projectDirectory, getCanonicalFileName);
                var sourceIsInternal = ts.startsWith(sourceDirectory, projectDirectory);
                var targetIsInternal = ts.startsWith(modulePath, projectDirectory);
                if (sourceIsInternal && !targetIsInternal || !sourceIsInternal && targetIsInternal) {
                    // 1. The import path crosses the boundary of the tsconfig.json-containing directory.
                    //
                    //      src/
                    //        tsconfig.json
                    //        index.ts -------
                    //      lib/              | (path crosses tsconfig.json)
                    //        imported.ts <---
                    //
                    return nonRelative;
                }
                var nearestTargetPackageJson = getNearestAncestorDirectoryWithPackageJson(host, ts.getDirectoryPath(modulePath));
                var nearestSourcePackageJson = getNearestAncestorDirectoryWithPackageJson(host, sourceDirectory);
                if (nearestSourcePackageJson !== nearestTargetPackageJson) {
                    // 2. The importing and imported files are part of different packages.
                    //
                    //      packages/a/
                    //        package.json
                    //        index.ts --------
                    //      packages/b/        | (path crosses package.json)
                    //        package.json     |
                    //        component.ts <---
                    //
                    return nonRelative;
                }
                return relativePath;
            }
            if (relativePreference !== 2 /* RelativePreference.Shortest */)