Changes to vt/emulate_bench_test.go. All files

vt/emulate_bench_test.go

new file mode 100644@@ -0,0 +1,82 @@+// Copyright 2026 The TCell Authors+//+// Licensed under the Apache License, Version 2.0 (the "License");+// you may not use this file except in compliance with the License.+// You may obtain a copy of the License at+//+//	http://www.apache.org/licenses/LICENSE-2.0+//+// Unless required by applicable law or agreed to in writing, software+// distributed under the License is distributed on an "AS IS" BASIS,+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.+// See the License for the specific language governing permissions and+// limitations under the License.++package vt++import (+	"testing"++	"github.com/gdamore/tcell/v3/color"+)++func BenchmarkPutRuneCurrent(b *testing.B) {+	benchPutRune(b, "current", (*emulator).putRune)+}++func benchPutRune(b *testing.B, name string, put func(*emulator, rune)) {+	cases := []struct {+		name string+		r    rune+		seq  []rune+	}{+		{name: "ascii", r: 'a'},+		{name: "width", r: 'π'},+		{name: "wide", r: '宽'},+		{name: "combining", r: '\u0301'},+		{name: "line", seq: []rune{+			'\u250C', '\u2510', '\u2514', '\u2518',+			'\u2500', '\u2502', '\u251C', '\u2524',+			'\u252C', '\u2534', '\u253C', '\u256D',+			'\u256E', '\u256F', '\u2570', '\u2571',+		}},+		{name: "mixed32", seq: []rune{+			'\u0416', '\u0414', '\u042E', '\u042F',+			'\u041F', '\u041B', '\u0424', '\u042B',+			'\u042D', '\u0411', '\u0413', '\u0428',+			'\u00E9', '\u00F6', '\u00FC', '\u00F1',+			'\u00E7', '\u00F8', '\u00E5', '\u00DF',+			'\u0142', '\u0111', '\u0127', '\u0131',+			'\U0001F600', '\U0001F680', '\U0001F9EA', '\U0001F525',+			'\U0001F355', '\U0001F389', '\U0001F4BB', '\U0001F4E6',+		}},+		{name: "mixed64", seq: sweepMixedRunes64},+	}++	for _, tc := range cases {+		b.Run(name+"/"+tc.name, func(b *testing.B) {+			em := NewEmulator(NewMockBackend(MockOptSize{X: 8, Y: 1}, MockOptColors(0))).(*emulator)+			em.style = BaseStyle.WithFg(color.White).WithBg(color.Black)+			em.defaultStyle = em.style+			em.localModes[PmGraphemeClusters] = ModeOn+			em.localModes[PmAutoMargin] = ModeOn+			em.cells[0].S = em.style+			em.cells[0].W = 1+			b.ReportAllocs()+			b.ResetTimer()+			for i := 0; i < b.N; i++ {+				r := tc.r+				if len(tc.seq) != 0 {+					r = tc.seq[i%len(tc.seq)]+				}+				em.pos = Coord{X: 1, Y: 0}+				em.lastIndex = 1+				em.autoWrap = false+				em.cells[0].C = "e"+				em.cells[0].S = em.style+				em.cells[0].W = 1+				put(em, r)+			}+		})+	}+}