vendor tsgo

tools/tsgo/internal/symlinks/knownsymlinks_bench_test.go

@@ -0,0 +1,73 @@
+package symlinks
+
+import (
+	"testing"
+
+	"github.com/microsoft/typescript-go/internal/tspath"
+)
+
+func BenchmarkPopulateSymlinksFromResolutions(b *testing.B) {
+	cache := NewKnownSymlink("/project", true)
+
+	deps := make([]struct{ orig, resolved string }, 50)
+	for i := range 50 {
+		deps[i].orig = "/project/node_modules/pkg" + string(rune('A'+i)) + "/index.js"
+		deps[i].resolved = "/real/pkg" + string(rune('A'+i)) + "/index.js"
+	}
+
+	for b.Loop() {
+		for _, dep := range deps {
+			cache.ProcessResolution(dep.orig, dep.resolved)
+		}
+	}
+}
+
+func BenchmarkSetFile(b *testing.B) {
+	cache := NewKnownSymlink("/project", true)
+	symlink := "/project/file.ts"
+	path := tspath.ToPath(symlink, "/project", true)
+
+	for b.Loop() {
+		cache.SetFile(symlink, path, "/real/file.ts")
+	}
+}
+
+func BenchmarkSetDirectory(b *testing.B) {
+	cache := NewKnownSymlink("/project", true)
+	symlinkPath := tspath.ToPath("/project/symlink", "/project", true).EnsureTrailingDirectorySeparator()
+	realDir := &KnownDirectoryLink{
+		Real:     "/real/path/",
+		RealPath: tspath.ToPath("/real/path", "/project", true).EnsureTrailingDirectorySeparator(),
+	}
+
+	for b.Loop() {
+		cache.SetDirectory("/project/symlink", symlinkPath, realDir)
+	}
+}
+
+func BenchmarkGuessDirectorySymlink(b *testing.B) {
+	cache := NewKnownSymlink("/project", true)
+
+	for b.Loop() {
+		cache.guessDirectorySymlink(
+			"/real/node_modules/package/dist/index.js",
+			"/project/symlink/package/dist/index.js",
+			"/project",
+		)
+	}
+}
+
+func BenchmarkConcurrentAccess(b *testing.B) {
+	cache := NewKnownSymlink("/project", true)
+
+	b.RunParallel(func(pb *testing.PB) {
+		i := 0
+		for pb.Next() {
+			symlink := "/project/file" + string(rune('A'+(i%26))) + ".ts"
+			path := tspath.ToPath(symlink, "/project", true)
+			cache.SetFile(symlink, path, "/real/file.ts")
+			cache.Files().Load(path)
+			i++
+		}
+	})
+}