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c65142244c
This adds a "small" d.ts bundler script. This script is very basic, using Node printing to produce its output. Generally speaking, this is inadvisable as it completely disregards name shadowing, globals, etc. However, in our case, we don't care about the globals, and we can opt to restructure our codebase in order to avoid conflict, which we largely had to do anyway when we were namespaces and everything was in scope.
70 lines
2.4 KiB
TypeScript
70 lines
2.4 KiB
TypeScript
import { noop } from "./_namespaces/ts";
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/** @internal */
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export interface PerfLogger {
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logEvent(msg: string): void;
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logErrEvent(msg: string): void;
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logPerfEvent(msg: string): void;
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logInfoEvent(msg: string): void;
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logStartCommand(command: string, msg: string): void;
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logStopCommand(command: string, msg: string): void;
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logStartUpdateProgram(msg: string): void;
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logStopUpdateProgram(msg: string): void;
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logStartUpdateGraph(): void;
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logStopUpdateGraph(): void;
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logStartResolveModule(name: string): void;
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logStopResolveModule(success: string): void;
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logStartParseSourceFile(filename: string): void;
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logStopParseSourceFile(): void;
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logStartReadFile(filename: string): void;
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logStopReadFile(): void;
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logStartBindFile(filename: string): void;
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logStopBindFile(): void;
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logStartScheduledOperation(operationId: string): void;
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logStopScheduledOperation(): void;
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}
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const nullLogger: PerfLogger = {
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logEvent: noop,
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logErrEvent: noop,
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logPerfEvent: noop,
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logInfoEvent: noop,
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logStartCommand: noop,
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logStopCommand: noop,
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logStartUpdateProgram: noop,
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logStopUpdateProgram: noop,
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logStartUpdateGraph: noop,
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logStopUpdateGraph: noop,
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logStartResolveModule: noop,
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logStopResolveModule: noop,
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logStartParseSourceFile: noop,
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logStopParseSourceFile: noop,
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logStartReadFile: noop,
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logStopReadFile: noop,
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logStartBindFile: noop,
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logStopBindFile: noop,
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logStartScheduledOperation: noop,
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logStopScheduledOperation: noop,
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};
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// Load optional module to enable Event Tracing for Windows
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// See https://github.com/microsoft/typescript-etw for more information
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let etwModule: typeof import("@microsoft/typescript-etw") | undefined;
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try {
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const etwModulePath = process.env.TS_ETW_MODULE_PATH ?? "./node_modules/@microsoft/typescript-etw";
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// require() will throw an exception if the module is not found
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// It may also return undefined if not installed properly
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etwModule = require(etwModulePath);
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}
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catch (e) {
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etwModule = undefined;
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}
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/**
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* Performance logger that will generate ETW events if possible - check for `logEvent` member, as `etwModule` will be `{}` when browserified
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*
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* @internal
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*/
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export const perfLogger: PerfLogger = etwModule?.logEvent ? etwModule : nullLogger;
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