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Optimize performance of maps

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This commit is contained in:
Anders Hejlsberg
2016-08-10 16:47:06 -07:00
parent bc5f41ebe4
commit 65e1293b2e
31 changed files with 321 additions and 334 deletions
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16
src/compiler/program.ts
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@@ -846,7 +846,7 @@ namespace ts {
}
export function createCompilerHost(options: CompilerOptions, setParentNodes?: boolean): CompilerHost {
const existingDirectories: Map<boolean> = {};
const existingDirectories = createMap<boolean>();
function getCanonicalFileName(fileName: string): string {
// if underlying system can distinguish between two files whose names differs only in cases then file name already in canonical form.
@@ -899,7 +899,7 @@ namespace ts {
function writeFileIfUpdated(fileName: string, data: string, writeByteOrderMark: boolean): void {
if (!outputFingerprints) {
outputFingerprints = {};
outputFingerprints = createMap<OutputFingerprint>();
}
const hash = sys.createHash(data);
@@ -1040,7 +1040,7 @@ namespace ts {
return [];
}
const resolutions: T[] = [];
const cache: Map<T> = {};
const cache = createMap<T>();
for (const name of names) {
let result: T;
if (hasProperty(cache, name)) {
@@ -1095,7 +1095,7 @@ namespace ts {
let noDiagnosticsTypeChecker: TypeChecker;
let classifiableNames: Map<string>;
let resolvedTypeReferenceDirectives: Map<ResolvedTypeReferenceDirective> = {};
let resolvedTypeReferenceDirectives = createMap<ResolvedTypeReferenceDirective>();
let fileProcessingDiagnostics = createDiagnosticCollection();
// The below settings are to track if a .js file should be add to the program if loaded via searching under node_modules.
@@ -1110,10 +1110,10 @@ namespace ts {
// If a module has some of its imports skipped due to being at the depth limit under node_modules, then track
// this, as it may be imported at a shallower depth later, and then it will need its skipped imports processed.
const modulesWithElidedImports: Map<boolean> = {};
const modulesWithElidedImports = createMap<boolean>();
// Track source files that are source files found by searching under node_modules, as these shouldn't be compiled.
const sourceFilesFoundSearchingNodeModules: Map<boolean> = {};
const sourceFilesFoundSearchingNodeModules = createMap<boolean>();
const start = performance.mark();
@@ -1241,7 +1241,7 @@ namespace ts {
if (!classifiableNames) {
// Initialize a checker so that all our files are bound.
getTypeChecker();
classifiableNames = {};
classifiableNames = createMap<string>();
for (const sourceFile of files) {
copyMap(sourceFile.classifiableNames, classifiableNames);
@@ -2082,7 +2082,7 @@ namespace ts {
function processImportedModules(file: SourceFile, basePath: string) {
collectExternalModuleReferences(file);
if (file.imports.length || file.moduleAugmentations.length) {
file.resolvedModules = {};
file.resolvedModules = createMap<ResolvedModule>();
const moduleNames = map(concatenate(file.imports, file.moduleAugmentations), getTextOfLiteral);
const resolutions = resolveModuleNamesWorker(moduleNames, getNormalizedAbsolutePath(file.fileName, currentDirectory));
for (let i = 0; i < moduleNames.length; i++) {