Add bench_call_test.go

Author: antonmedv

test/bench/bench_call_test.go

@@ -0,0 +1,63 @@
+package bench_test
+
+import (
+	"testing"
+
+	"github.com/expr-lang/expr"
+	"github.com/expr-lang/expr/internal/testify/require"
+	"github.com/expr-lang/expr/vm"
+)
+
+type Env struct {
+	Fn func() bool
+}
+
+func BenchmarkCall_callTyped(b *testing.B) {
+	code := `Fn()`
+
+	p, err := expr.Compile(code, expr.Env(Env{}))
+	require.NoError(b, err)
+	require.Equal(b, p.Bytecode[1], vm.OpCallTyped)
+
+	env := Env{
+		Fn: func() bool {
+			return true
+		},
+	}
+
+	var out any
+
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		program, _ := expr.Compile(code, expr.Env(env))
+		out, err = vm.Run(program, env)
+	}
+	b.StopTimer()
+
+	require.NoError(b, err)
+	require.True(b, out.(bool))
+}
+
+func BenchmarkCall_eval(b *testing.B) {
+	code := `Fn()`
+
+	p, err := expr.Compile(code)
+	require.NoError(b, err)
+	require.Equal(b, p.Bytecode[1], vm.OpCall)
+
+	env := Env{
+		Fn: func() bool {
+			return true
+		},
+	}
+
+	var out any
+	b.ResetTimer()
+	for n := 0; n < b.N; n++ {
+		out, err = expr.Eval(code, env)
+	}
+	b.StopTimer()
+
+	require.NoError(b, err)
+	require.True(b, out.(bool))
+}