1da18c60d6
* Add some failing tests around transient symbols * Working, but slower * A class is much faster, apparently * This is probably best? * Back to multimap * Go back to single symbol cache * Revert now-unnecessary generics * Rename and reorganize * Fix weird compound condition * Clean up
96 lines
4.5 KiB
TypeScript
96 lines
4.5 KiB
TypeScript
/*@internal*/
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namespace ts.server {
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export interface ModuleSpecifierResolutionCacheHost {
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watchNodeModulesForPackageJsonChanges(directoryPath: string): FileWatcher;
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}
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export function createModuleSpecifierCache(host: ModuleSpecifierResolutionCacheHost): ModuleSpecifierCache {
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let containedNodeModulesWatchers: ESMap<string, FileWatcher> | undefined;
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let cache: ESMap<Path, ResolvedModuleSpecifierInfo> | undefined;
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let currentKey: string | undefined;
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const result: ModuleSpecifierCache = {
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get(fromFileName, toFileName, preferences) {
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if (!cache || currentKey !== key(fromFileName, preferences)) return undefined;
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return cache.get(toFileName);
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},
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set(fromFileName, toFileName, preferences, modulePaths, moduleSpecifiers) {
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ensureCache(fromFileName, preferences).set(toFileName, createInfo(modulePaths, moduleSpecifiers, /*isAutoImportable*/ true));
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// If any module specifiers were generated based off paths in node_modules,
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// a package.json file in that package was read and is an input to the cached.
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// Instead of watching each individual package.json file, set up a wildcard
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// directory watcher for any node_modules referenced and clear the cache when
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// it sees any changes.
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if (moduleSpecifiers) {
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for (const p of modulePaths) {
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if (p.isInNodeModules) {
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// No trailing slash
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const nodeModulesPath = p.path.substring(0, p.path.indexOf(nodeModulesPathPart) + nodeModulesPathPart.length - 1);
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if (!containedNodeModulesWatchers?.has(nodeModulesPath)) {
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(containedNodeModulesWatchers ||= new Map()).set(
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nodeModulesPath,
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host.watchNodeModulesForPackageJsonChanges(nodeModulesPath),
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);
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}
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}
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}
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}
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},
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setModulePaths(fromFileName, toFileName, preferences, modulePaths) {
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const cache = ensureCache(fromFileName, preferences);
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const info = cache.get(toFileName);
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if (info) {
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info.modulePaths = modulePaths;
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}
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else {
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cache.set(toFileName, createInfo(modulePaths, /*moduleSpecifiers*/ undefined, /*isAutoImportable*/ undefined));
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}
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},
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setIsAutoImportable(fromFileName, toFileName, preferences, isAutoImportable) {
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const cache = ensureCache(fromFileName, preferences);
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const info = cache.get(toFileName);
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if (info) {
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info.isAutoImportable = isAutoImportable;
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}
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else {
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cache.set(toFileName, createInfo(/*modulePaths*/ undefined, /*moduleSpecifiers*/ undefined, isAutoImportable));
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}
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},
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clear() {
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containedNodeModulesWatchers?.forEach(watcher => watcher.close());
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cache?.clear();
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containedNodeModulesWatchers?.clear();
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currentKey = undefined;
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},
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count() {
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return cache ? cache.size : 0;
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}
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};
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if (Debug.isDebugging) {
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Object.defineProperty(result, "__cache", { get: () => cache });
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}
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return result;
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function ensureCache(fromFileName: Path, preferences: UserPreferences) {
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const newKey = key(fromFileName, preferences);
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if (cache && (currentKey !== newKey)) {
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result.clear();
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}
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currentKey = newKey;
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return cache ||= new Map();
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}
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function key(fromFileName: Path, preferences: UserPreferences) {
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return `${fromFileName},${preferences.importModuleSpecifierEnding},${preferences.importModuleSpecifierPreference}`;
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}
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function createInfo(
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modulePaths: readonly ModulePath[] | undefined,
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moduleSpecifiers: readonly string[] | undefined,
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isAutoImportable: boolean | undefined,
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): ResolvedModuleSpecifierInfo {
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return { modulePaths, moduleSpecifiers, isAutoImportable };
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}
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}
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}
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