Microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2025-11-18 17:21:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Optimize module resolution cache for watch and editor (#37055)

Browse Source 
* Refactor resolveName

* Have resolutions of failed lookups as array and resolved to fileName map
This commit is contained in:
Sheetal Nandi
2020-03-11 14:35:26 -07:00
committed by GitHub
parent 6856c012d2
commit 1a9c8197ff
12 changed files with 152 additions and 189 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/compiler/moduleNameResolver.ts
+10 -9
View File
@@ -84,7 +84,11 @@ namespace ts {
return { fileName: resolved.path, packageId: resolved.packageId };
}
function createResolvedModuleWithFailedLookupLocations(resolved: Resolved | undefined, isExternalLibraryImport: boolean, failedLookupLocations: string[]): ResolvedModuleWithFailedLookupLocations {
function createResolvedModuleWithFailedLookupLocations(resolved: Resolved | undefined, isExternalLibraryImport: boolean | undefined, failedLookupLocations: string[], resultFromCache: ResolvedModuleWithFailedLookupLocations | undefined): ResolvedModuleWithFailedLookupLocations {
if (resultFromCache) {
resultFromCache.failedLookupLocations.push(...failedLookupLocations);
return resultFromCache;
}
return {
resolvedModule: resolved && { resolvedFileName: resolved.path, originalPath: resolved.originalPath === true ? undefined : resolved.originalPath, extension: resolved.extension, isExternalLibraryImport, packageId: resolved.packageId },
failedLookupLocations
@@ -96,6 +100,7 @@ namespace ts {
compilerOptions: CompilerOptions;
traceEnabled: boolean;
failedLookupLocations: Push<string>;
resultFromCache?: ResolvedModuleWithFailedLookupLocations;
}
/** Just the fields that we use for module resolution. */
@@ -926,11 +931,7 @@ namespace ts {
const state: ModuleResolutionState = { compilerOptions, host, traceEnabled, failedLookupLocations };
const result = forEach(extensions, ext => tryResolve(ext));
if (result && result.value) {
const { resolved, isExternalLibraryImport } = result.value;
return createResolvedModuleWithFailedLookupLocations(resolved, isExternalLibraryImport, failedLookupLocations);
}
return { resolvedModule: undefined, failedLookupLocations };
return createResolvedModuleWithFailedLookupLocations(result?.value?.resolved, result?.value?.isExternalLibraryImport, failedLookupLocations, state.resultFromCache);
function tryResolve(extensions: Extensions): SearchResult<{ resolved: Resolved, isExternalLibraryImport: boolean }> {
const loader: ResolutionKindSpecificLoader = (extensions, candidate, onlyRecordFailures, state) => nodeLoadModuleByRelativeName(extensions, candidate, onlyRecordFailures, state, /*considerPackageJson*/ true);
@@ -1435,7 +1436,7 @@ namespace ts {
if (state.traceEnabled) {
trace(state.host, Diagnostics.Resolution_for_module_0_was_found_in_cache_from_location_1, moduleName, containingDirectory);
}
state.failedLookupLocations.push(...result.failedLookupLocations);
state.resultFromCache = result;
return { value: result.resolvedModule && { path: result.resolvedModule.resolvedFileName, originalPath: result.resolvedModule.originalPath || true, extension: result.resolvedModule.extension, packageId: result.resolvedModule.packageId } };
}
}
@@ -1448,7 +1449,7 @@ namespace ts {
const resolved = tryResolve(Extensions.TypeScript) || tryResolve(Extensions.JavaScript);
// No originalPath because classic resolution doesn't resolve realPath
return createResolvedModuleWithFailedLookupLocations(resolved && resolved.value, /*isExternalLibraryImport*/ false, failedLookupLocations);
return createResolvedModuleWithFailedLookupLocations(resolved && resolved.value, /*isExternalLibraryImport*/ false, failedLookupLocations, state.resultFromCache);
function tryResolve(extensions: Extensions): SearchResult<Resolved> {
const resolvedUsingSettings = tryLoadModuleUsingOptionalResolutionSettings(extensions, moduleName, containingDirectory, loadModuleFromFileNoPackageId, state);
@@ -1495,7 +1496,7 @@ namespace ts {
const failedLookupLocations: string[] = [];
const state: ModuleResolutionState = { compilerOptions, host, traceEnabled, failedLookupLocations };
const resolved = loadModuleFromImmediateNodeModulesDirectory(Extensions.DtsOnly, moduleName, globalCache, state, /*typesScopeOnly*/ false);
return createResolvedModuleWithFailedLookupLocations(resolved, /*isExternalLibraryImport*/ true, failedLookupLocations);
return createResolvedModuleWithFailedLookupLocations(resolved, /*isExternalLibraryImport*/ true, failedLookupLocations, state.resultFromCache);
}
/**