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package expr_test
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/expr-lang/expr"
"github.com/expr-lang/expr/vm"
)
func Benchmark_expr(b *testing.B) {
params := make(map[string]any)
params["Origin"] = "MOW"
params["Country"] = "RU"
params["Adults"] = 1
params["Value"] = 100
program, err := expr.Compile(`(Origin == "MOW" || Country == "RU") && (Value >= 100 || Adults == 1)`, expr.Env(params))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, params)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
func Benchmark_expr_reuseVm(b *testing.B) {
params := make(map[string]any)
params["Origin"] = "MOW"
params["Country"] = "RU"
params["Adults"] = 1
params["Value"] = 100
program, err := expr.Compile(`(Origin == "MOW" || Country == "RU") && (Value >= 100 || Adults == 1)`, expr.Env(params))
require.NoError(b, err)
var out any
v := vm.VM{}
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = v.Run(program, params)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
func Benchmark_len(b *testing.B) {
env := map[string]any{
"arr": make([]int, 100),
}
program, err := expr.Compile(`len(arr)`, expr.Env(env))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, 100, out)
}
func Benchmark_filter(b *testing.B) {
type Env struct {
Ints []int
}
env := Env{
Ints: make([]int, 1000),
}
for i := 1; i <= len(env.Ints); i++ {
env.Ints[i-1] = i
}
program, err := expr.Compile(`filter(Ints, # % 7 == 0)`, expr.Env(Env{}))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Len(b, out.([]any), 142)
}
func Benchmark_filterLen(b *testing.B) {
type Env struct {
Ints []int
}
env := Env{
Ints: make([]int, 1000),
}
for i := 1; i <= len(env.Ints); i++ {
env.Ints[i-1] = i
}
program, err := expr.Compile(`len(filter(Ints, # % 7 == 0))`, expr.Env(Env{}))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, 142, out)
}
func Benchmark_filterFirst(b *testing.B) {
type Env struct {
Ints []int
}
env := Env{
Ints: make([]int, 1000),
}
for i := 1; i <= len(env.Ints); i++ {
env.Ints[i-1] = i
}
program, err := expr.Compile(`filter(Ints, # % 7 == 0)[0]`, expr.Env(Env{}))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, 7, out)
}
func Benchmark_filterLast(b *testing.B) {
type Env struct {
Ints []int
}
env := Env{
Ints: make([]int, 1000),
}
for i := 1; i <= len(env.Ints); i++ {
env.Ints[i-1] = i
}
program, err := expr.Compile(`filter(Ints, # % 7 == 0)[-1]`, expr.Env(Env{}))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, 994, out)
}
func Benchmark_filterMap(b *testing.B) {
type Env struct {
Ints []int
}
env := Env{
Ints: make([]int, 100),
}
for i := 1; i <= len(env.Ints); i++ {
env.Ints[i-1] = i
}
program, err := expr.Compile(`map(filter(Ints, # % 7 == 0), # * 2)`, expr.Env(Env{}))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Len(b, out.([]any), 14)
require.Equal(b, 14, out.([]any)[0])
}
func Benchmark_arrayIndex(b *testing.B) {
env := map[string]any{
"arr": make([]int, 100),
}
for i := 0; i < 100; i++ {
env["arr"].([]int)[i] = i
}
program, err := expr.Compile(`arr[50]`, expr.Env(env))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, 50, out)
}
func Benchmark_envStruct(b *testing.B) {
type Price struct {
Value int
}
type Env struct {
Price Price
}
program, err := expr.Compile(`Price.Value > 0`, expr.Env(Env{}))
require.NoError(b, err)
env := Env{Price: Price{Value: 1}}
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
func Benchmark_envMap(b *testing.B) {
type Price struct {
Value int
}
env := map[string]any{
"price": Price{Value: 1},
}
program, err := expr.Compile(`price.Value > 0`, expr.Env(env))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
type CallEnv struct {
A int
B int
C int
Fn func() bool
FnFast func(...any) any
Foo CallFoo
}
func (CallEnv) Func() string {
return "func"
}
type CallFoo struct {
D int
E int
F int
}
func (CallFoo) Method() string {
return "method"
}
func Benchmark_callFunc(b *testing.B) {
program, err := expr.Compile(`Func()`, expr.Env(CallEnv{}))
require.NoError(b, err)
env := CallEnv{}
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, "func", out)
}
func Benchmark_callMethod(b *testing.B) {
program, err := expr.Compile(`Foo.Method()`, expr.Env(CallEnv{}))
require.NoError(b, err)
env := CallEnv{}
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, "method", out)
}
func Benchmark_callField(b *testing.B) {
program, err := expr.Compile(`Fn()`, expr.Env(CallEnv{}))
require.NoError(b, err)
env := CallEnv{
Fn: func() bool {
return true
},
}
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
func Benchmark_callFast(b *testing.B) {
program, err := expr.Compile(`FnFast()`, expr.Env(CallEnv{}))
if err != nil {
b.Fatal(err)
}
env := CallEnv{
FnFast: func(s ...any) any {
return "fn_fast"
},
}
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, "fn_fast", out)
}
func Benchmark_callConstExpr(b *testing.B) {
program, err := expr.Compile(`Func()`, expr.Env(CallEnv{}), expr.ConstExpr("Func"))
require.NoError(b, err)
env := CallEnv{}
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, env)
}
b.StopTimer()
require.NoError(b, err)
require.Equal(b, "func", out)
}
func Benchmark_largeStructAccess(b *testing.B) {
type Env struct {
Data [1024 * 1024 * 10]byte
Field int
}
program, err := expr.Compile(`Field > 0 && Field > 1 && Field < 99`, expr.Env(Env{}))
require.NoError(b, err)
env := Env{Field: 21}
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, &env)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
func Benchmark_largeNestedStructAccess(b *testing.B) {
type Env struct {
Inner struct {
Data [1024 * 1024 * 10]byte
Field int
}
}
program, err := expr.Compile(`Inner.Field > 0 && Inner.Field > 1 && Inner.Field < 99`, expr.Env(Env{}))
require.NoError(b, err)
env := Env{}
env.Inner.Field = 21
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, &env)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
func Benchmark_largeNestedArrayAccess(b *testing.B) {
type Env struct {
Data [1][1024 * 1024 * 10]byte
}
program, err := expr.Compile(`Data[0][0] > 0`, expr.Env(Env{}))
require.NoError(b, err)
env := Env{}
env.Data[0][0] = 1
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, err = vm.Run(program, &env)
}
b.StopTimer()
require.NoError(b, err)
require.True(b, out.(bool))
}
func Benchmark_sort(b *testing.B) {
env := map[string]any{
"arr": []any{55, 58, 42, 61, 75, 52, 64, 62, 16, 79, 40, 14, 50, 76, 23, 2, 5, 80, 89, 51, 21, 96, 91, 13, 71, 82, 65, 63, 11, 17, 94, 81, 74, 4, 97, 1, 39, 3, 28, 8, 84, 90, 47, 85, 7, 56, 49, 93, 33, 12, 19, 60, 86, 100, 44, 45, 36, 72, 95, 77, 34, 92, 24, 73, 18, 38, 43, 26, 41, 69, 67, 57, 9, 27, 66, 87, 46, 35, 59, 70, 10, 20, 53, 15, 32, 98, 68, 31, 54, 25, 83, 88, 22, 48, 29, 37, 6, 78, 99, 30},
}
program, err := expr.Compile(`sort(arr)`, expr.Env(env))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, _ = vm.Run(program, env)
}
b.StopTimer()
require.Equal(b, 1, out.([]any)[0])
require.Equal(b, 100, out.([]any)[99])
}
func Benchmark_sortBy(b *testing.B) {
type Foo struct {
Value int
}
arr := []any{55, 58, 42, 61, 75, 52, 64, 62, 16, 79, 40, 14, 50, 76, 23, 2, 5, 80, 89, 51, 21, 96, 91, 13, 71, 82, 65, 63, 11, 17, 94, 81, 74, 4, 97, 1, 39, 3, 28, 8, 84, 90, 47, 85, 7, 56, 49, 93, 33, 12, 19, 60, 86, 100, 44, 45, 36, 72, 95, 77, 34, 92, 24, 73, 18, 38, 43, 26, 41, 69, 67, 57, 9, 27, 66, 87, 46, 35, 59, 70, 10, 20, 53, 15, 32, 98, 68, 31, 54, 25, 83, 88, 22, 48, 29, 37, 6, 78, 99, 30}
env := map[string]any{
"arr": make([]Foo, len(arr)),
}
for i, v := range arr {
env["arr"].([]Foo)[i] = Foo{Value: v.(int)}
}
program, err := expr.Compile(`sortBy(arr, .Value)`, expr.Env(env))
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, _ = vm.Run(program, env)
}
b.StopTimer()
require.Equal(b, 1, out.([]any)[0].(Foo).Value)
require.Equal(b, 100, out.([]any)[99].(Foo).Value)
}
func Benchmark_groupBy(b *testing.B) {
program, err := expr.Compile(`groupBy(1..100, # % 7)[6]`)
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, _ = vm.Run(program, nil)
}
b.StopTimer()
require.Equal(b, 6, out.([]any)[0])
}
func Benchmark_reduce(b *testing.B) {
program, err := expr.Compile(`reduce(1..100, # + #acc)`)
require.NoError(b, err)
var out any
b.ResetTimer()
for n := 0; n < b.N; n++ {
out, _ = vm.Run(program, nil)
}
b.StopTimer()
require.Equal(b, 5050, out.(int))
}