Adding upstream version 1.19.8.upstream/1.19.8upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/test/bench/go1/parser_test.go b/test/bench/go1/parser_test.go
new file mode 100644
index 0000000..8b7baa3
--- /dev/null
+++ b/test/bench/go1/parser_test.go
@@ -0,0 +1,42 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package go1
+
+// go parser benchmark based on go/parser/performance_test.go
+
+import (
+	"compress/bzip2"
+	"encoding/base64"
+	"go/parser"
+	"go/token"
+	"io"
+	"strings"
+	"testing"
+)
+
+var (
+	parserbytes = makeParserBytes()
+)
+
+func makeParserBytes() []byte {
+	var r io.Reader
+	r = strings.NewReader(parserbz2_base64)
+	r = base64.NewDecoder(base64.StdEncoding, r)
+	r = bzip2.NewReader(r)
+	b, err := io.ReadAll(r)
+	if err != nil {
+		panic(err)
+	}
+	return b
+}
+
+func BenchmarkGoParse(b *testing.B) {
+	b.SetBytes(int64(len(parserbytes)))
+	for i := 0; i < b.N; i++ {
+		if _, err := parser.ParseFile(token.NewFileSet(), "", parserbytes, parser.ParseComments); err != nil {
+			b.Fatalf("benchmark failed due to parse error: %s", err)
+		}
+	}
+}