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Trace key operations

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Produce output in Chrome's event tracing format so that it can be viewed
in Chrome/Edge.
This commit is contained in:
Andrew Casey
2020-08-06 11:02:51 -07:00
parent 9569198df6
commit 5d60972ef4
22 changed files with 315 additions and 19 deletions
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10
src/compiler/program.ts
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@@ -734,6 +734,7 @@ namespace ts {
// Track source files that are source files found by searching under node_modules, as these shouldn't be compiled.
const sourceFilesFoundSearchingNodeModules = new Map<string, boolean>();
tracing.begin(tracing.Phase.Program, "createProgram", {});
performance.mark("beforeProgram");
const host = createProgramOptions.host || createCompilerHost(options);
@@ -948,6 +949,7 @@ namespace ts {
getNodeCount: () => getDiagnosticsProducingTypeChecker().getNodeCount(),
getIdentifierCount: () => getDiagnosticsProducingTypeChecker().getIdentifierCount(),
getSymbolCount: () => getDiagnosticsProducingTypeChecker().getSymbolCount(),
getTypeCatalog: () => getDiagnosticsProducingTypeChecker().getTypeCatalog(),
getTypeCount: () => getDiagnosticsProducingTypeChecker().getTypeCount(),
getInstantiationCount: () => getDiagnosticsProducingTypeChecker().getInstantiationCount(),
getRelationCacheSizes: () => getDiagnosticsProducingTypeChecker().getRelationCacheSizes(),
@@ -982,6 +984,7 @@ namespace ts {
verifyCompilerOptions();
performance.mark("afterProgram");
performance.measure("Program", "beforeProgram", "afterProgram");
tracing.end();
return program;
@@ -1505,6 +1508,7 @@ namespace ts {
function emitBuildInfo(writeFileCallback?: WriteFileCallback): EmitResult {
Debug.assert(!outFile(options));
tracing.begin(tracing.Phase.Emit, "emitBuildInfo", {});
performance.mark("beforeEmit");
const emitResult = emitFiles(
notImplementedResolver,
@@ -1517,6 +1521,7 @@ namespace ts {
performance.mark("afterEmit");
performance.measure("Emit", "beforeEmit", "afterEmit");
tracing.end();
return emitResult;
}
@@ -1577,7 +1582,10 @@ namespace ts {
}
function emit(sourceFile?: SourceFile, writeFileCallback?: WriteFileCallback, cancellationToken?: CancellationToken, emitOnlyDtsFiles?: boolean, transformers?: CustomTransformers, forceDtsEmit?: boolean): EmitResult {
return runWithCancellationToken(() => emitWorker(program, sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles, transformers, forceDtsEmit));
tracing.begin(tracing.Phase.Emit, "emit", { path: sourceFile?.path });
const result = runWithCancellationToken(() => emitWorker(program, sourceFile, writeFileCallback, cancellationToken, emitOnlyDtsFiles, transformers, forceDtsEmit));
tracing.end();
return result;
}
function isEmitBlocked(emitFileName: string): boolean {