mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-10-16 15:43:25 +00:00
7577bbef22
Consider function call `f(1, g(2, 3))` when both `f` and `g` are inlined. If `f` contains some locals, inlining `g` will replace them with it's another locals map, because slices in Go reuse storage on `append`. Thus scope needs to be copied.
254 lines
6.6 KiB
Go
254 lines
6.6 KiB
Go
package compiler_test
|
|
|
|
import (
|
|
"fmt"
|
|
"math/big"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/compiler"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func checkCallCount(t *testing.T, src string, expectedCall, expectedInitSlot int) {
|
|
v := vmAndCompile(t, src)
|
|
ctx := v.Context()
|
|
actualCall := 0
|
|
actualInitSlot := 0
|
|
|
|
for op, _, err := ctx.Next(); ; op, _, err = ctx.Next() {
|
|
require.NoError(t, err)
|
|
switch op {
|
|
case opcode.CALL, opcode.CALLL:
|
|
actualCall++
|
|
case opcode.INITSLOT:
|
|
actualInitSlot++
|
|
}
|
|
if ctx.IP() == ctx.LenInstr() {
|
|
break
|
|
}
|
|
}
|
|
require.Equal(t, expectedCall, actualCall)
|
|
require.Equal(t, expectedInitSlot, actualInitSlot)
|
|
}
|
|
|
|
func TestInline(t *testing.T) {
|
|
srcTmpl := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
// local alias
|
|
func sum(a, b int) int {
|
|
return 42
|
|
}
|
|
var Num = 1
|
|
func Main() int {
|
|
%s
|
|
}`
|
|
t.Run("no return", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `inline.NoArgsNoReturn()
|
|
return 1`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(1))
|
|
})
|
|
t.Run("has return, dropped", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `inline.NoArgsReturn1()
|
|
return 2`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(2))
|
|
})
|
|
t.Run("drop twice", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `inline.DropInsideInline()
|
|
return 42`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(42))
|
|
})
|
|
t.Run("no args return 1", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.NoArgsReturn1()`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(1))
|
|
})
|
|
t.Run("sum", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.Sum(1, 2)`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(3))
|
|
})
|
|
t.Run("sum squared (nested inline)", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.SumSquared(1, 2)`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(9))
|
|
})
|
|
t.Run("inline function in inline function parameter", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.Sum(inline.SumSquared(1, 2), inline.Sum(3, 4))`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(9+3+4))
|
|
})
|
|
t.Run("global name clash", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.GetSumSameName()`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(42))
|
|
})
|
|
t.Run("local name clash", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.Sum(inline.SumSquared(1, 2), sum(3, 4))`)
|
|
checkCallCount(t, src, 1, 2)
|
|
eval(t, src, big.NewInt(51))
|
|
})
|
|
t.Run("var args, empty", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.VarSum(11)`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(11))
|
|
})
|
|
t.Run("var args, direct", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.VarSum(11, 14, 17)`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(42))
|
|
})
|
|
t.Run("var args, array", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `arr := []int{14, 17}
|
|
return inline.VarSum(11, arr...)`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(42))
|
|
})
|
|
t.Run("globals", func(t *testing.T) {
|
|
src := fmt.Sprintf(srcTmpl, `return inline.Concat(Num)`)
|
|
checkCallCount(t, src, 0, 1)
|
|
eval(t, src, big.NewInt(221))
|
|
})
|
|
}
|
|
|
|
func TestInlineInLoop(t *testing.T) {
|
|
t.Run("simple", func(t *testing.T) {
|
|
src := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/interop/binary"
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
func Main() int {
|
|
sum := 0
|
|
values := []int{10, 11}
|
|
for _, v := range values {
|
|
binary.Itoa(v, 10)
|
|
sum += inline.VarSum(1, 2, 3, 4)
|
|
}
|
|
return sum
|
|
}`
|
|
eval(t, src, big.NewInt(20))
|
|
})
|
|
t.Run("inlined argument", func(t *testing.T) {
|
|
src := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/interop/binary"
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
func Main() int {
|
|
sum := 0
|
|
values := []int{10, 11}
|
|
for _, v := range values {
|
|
binary.Itoa(v, 10)
|
|
sum += inline.VarSum(1, 2, 3, binary.Atoi("4", 10))
|
|
}
|
|
return sum
|
|
}`
|
|
eval(t, src, big.NewInt(20))
|
|
})
|
|
t.Run("check clean stack on return", func(t *testing.T) {
|
|
src := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/interop/binary"
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
func Main() int {
|
|
values := []int{10, 11, 12}
|
|
for _, v := range values {
|
|
binary.Itoa(v, 10)
|
|
if v == 11 {
|
|
return inline.VarSum(2, 20, 200)
|
|
}
|
|
}
|
|
return 0
|
|
}`
|
|
eval(t, src, big.NewInt(222))
|
|
})
|
|
}
|
|
|
|
func TestInlineInSwitch(t *testing.T) {
|
|
src := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
func Main() int {
|
|
switch inline.VarSum(1, 2) {
|
|
case inline.VarSum(3, 1):
|
|
return 10
|
|
case inline.VarSum(4, -1):
|
|
return 11
|
|
default:
|
|
return 12
|
|
}
|
|
}`
|
|
eval(t, src, big.NewInt(11))
|
|
}
|
|
|
|
func TestInlineGlobalVariable(t *testing.T) {
|
|
t.Run("simple", func(t *testing.T) {
|
|
src := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
var a = inline.Sum(1, 2)
|
|
func Main() int {
|
|
return a
|
|
}`
|
|
eval(t, src, big.NewInt(3))
|
|
})
|
|
t.Run("complex", func(t *testing.T) {
|
|
src := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
var a = inline.Sum(3, 4)
|
|
var b = inline.SumSquared(1, 2)
|
|
var c = a + b
|
|
func init() {
|
|
c--
|
|
}
|
|
func Main() int {
|
|
return c
|
|
}`
|
|
eval(t, src, big.NewInt(15))
|
|
})
|
|
}
|
|
|
|
func TestInlineConversion(t *testing.T) {
|
|
src1 := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
var _ = inline.A
|
|
func Main() int {
|
|
a := 2
|
|
return inline.SumSquared(1, a)
|
|
}`
|
|
b1, err := compiler.Compile("foo.go", strings.NewReader(src1))
|
|
require.NoError(t, err)
|
|
|
|
src2 := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
var _ = inline.A
|
|
func Main() int {
|
|
a := 2
|
|
{
|
|
return (1 + a) * (1 + a)
|
|
}
|
|
}`
|
|
b2, err := compiler.Compile("foo.go", strings.NewReader(src2))
|
|
require.NoError(t, err)
|
|
require.Equal(t, b2, b1)
|
|
}
|
|
|
|
func TestInlineConversionQualified(t *testing.T) {
|
|
src1 := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
var A = 1
|
|
func Main() int {
|
|
return inline.Concat(A)
|
|
}`
|
|
b1, err := compiler.Compile("foo.go", strings.NewReader(src1))
|
|
require.NoError(t, err)
|
|
|
|
src2 := `package foo
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
|
|
import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline/b"
|
|
var A = 1
|
|
func Main() int {
|
|
return A * 100 + b.A * 10 + inline.A
|
|
}`
|
|
b2, err := compiler.Compile("foo.go", strings.NewReader(src2))
|
|
require.NoError(t, err)
|
|
require.Equal(t, b2, b1)
|
|
}
|