forked from TrueCloudLab/neoneo-go
6b3afe9131
This has the drawback of traversing expression each time the argument is used. However this is not the case in our syscall/native wrappers. The old behaviour can be restored by explicit local assignment.
320 lines
8.8 KiB
Go
320 lines
8.8 KiB
Go
package compiler_test
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import (
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"fmt"
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"math/big"
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"strings"
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/compiler"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/require"
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)
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func checkCallCount(t *testing.T, src string, expectedCall, expectedInitSlot, expectedLocalsMain int) {
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v, sp := vmAndCompileInterop(t, src)
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mainStart := -1
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for _, m := range sp.info.Methods {
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if m.Name.Name == "main" {
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mainStart = int(m.Range.Start)
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}
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}
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require.True(t, mainStart >= 0)
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ctx := v.Context()
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actualCall := 0
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actualInitSlot := 0
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for op, param, err := ctx.Next(); ; op, param, err = ctx.Next() {
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require.NoError(t, err)
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switch op {
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case opcode.CALL, opcode.CALLL:
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actualCall++
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case opcode.INITSLOT:
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actualInitSlot++
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if ctx.IP() == mainStart {
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require.Equal(t, expectedLocalsMain, int(param[0]))
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}
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}
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if ctx.IP() == ctx.LenInstr() {
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break
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}
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}
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require.Equal(t, expectedCall, actualCall)
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require.True(t, expectedInitSlot == actualInitSlot)
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}
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func TestInline(t *testing.T) {
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srcTmpl := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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type pair struct { a, b int }
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type triple struct {
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a int
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b pair
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}
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// local alias
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func sum(a, b int) int {
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return 42
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}
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var Num = 1
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func Main() int {
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%s
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}`
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t.Run("no return", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `inline.NoArgsNoReturn()
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return 1`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(1))
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})
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t.Run("has return, dropped", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `inline.NoArgsReturn1()
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return 2`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(2))
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})
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t.Run("drop twice", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `inline.DropInsideInline()
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return 42`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(42))
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})
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t.Run("no args return 1", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.NoArgsReturn1()`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(1))
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})
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t.Run("sum", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.Sum(1, 2)`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(3))
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})
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t.Run("sum squared (nested inline)", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.SumSquared(1, 2)`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(9))
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})
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t.Run("inline function in inline function parameter", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.Sum(inline.SumSquared(1, 2), inline.Sum(3, 4))`)
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checkCallCount(t, src, 0, 1, 2)
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eval(t, src, big.NewInt(9+3+4))
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})
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t.Run("global name clash", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.GetSumSameName()`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(42))
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})
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t.Run("local name clash", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.Sum(inline.SumSquared(1, 2), sum(3, 4))`)
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checkCallCount(t, src, 1, 2, 2)
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eval(t, src, big.NewInt(51))
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})
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t.Run("var args, empty", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.VarSum(11)`)
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checkCallCount(t, src, 0, 1, 3)
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eval(t, src, big.NewInt(11))
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})
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t.Run("var args, direct", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.VarSum(11, 14, 17)`)
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checkCallCount(t, src, 0, 1, 3)
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eval(t, src, big.NewInt(42))
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})
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t.Run("var args, array", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `arr := []int{14, 17}
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return inline.VarSum(11, arr...)`)
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checkCallCount(t, src, 0, 1, 3)
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eval(t, src, big.NewInt(42))
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})
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t.Run("globals", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.Concat(Num)`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(221))
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})
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t.Run("locals, alias", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `num := 1; return inline.Concat(num)`)
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checkCallCount(t, src, 0, 1, 1)
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eval(t, src, big.NewInt(221))
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})
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t.Run("selector, global", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `return inline.Sum(inline.A, 2)`)
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checkCallCount(t, src, 0, 0, 0)
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eval(t, src, big.NewInt(3))
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})
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t.Run("selector, struct, simple", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `x := pair{a: 1, b: 2}; return inline.Sum(x.b, 1)`)
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checkCallCount(t, src, 0, 1, 1)
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eval(t, src, big.NewInt(3))
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})
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t.Run("selector, struct, complex", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `x := triple{a: 1, b: pair{a: 2, b: 3}}
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return inline.Sum(x.b.a, 1)`)
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checkCallCount(t, src, 0, 1, 1)
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eval(t, src, big.NewInt(3))
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})
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t.Run("expression", func(t *testing.T) {
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src := fmt.Sprintf(srcTmpl, `x, y := 1, 2
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return inline.Sum(x+y, y*2)`)
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checkCallCount(t, src, 0, 1, 2)
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eval(t, src, big.NewInt(7))
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})
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}
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func TestInlineInLoop(t *testing.T) {
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t.Run("simple", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/storage"
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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func Main() int {
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sum := 0
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values := []int{10, 11}
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for _, v := range values {
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_ = v // use 'v'
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storage.GetContext() // push something on stack to check it's dropped
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sum += inline.VarSum(1, 2, 3, 4)
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}
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return sum
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}`
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eval(t, src, big.NewInt(20))
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})
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t.Run("inlined argument", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/runtime"
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import "github.com/nspcc-dev/neo-go/pkg/interop/storage"
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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func Main() int {
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sum := 0
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values := []int{10, 11}
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for _, v := range values {
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_ = v // use 'v'
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storage.GetContext() // push something on stack to check it's dropped
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sum += inline.VarSum(1, 2, 3, runtime.GetTime()) // runtime.GetTime always returns 4 in these tests
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}
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return sum
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}`
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eval(t, src, big.NewInt(20))
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})
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t.Run("check clean stack on return", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/interop/storage"
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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func Main() int {
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values := []int{10, 11, 12}
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for _, v := range values {
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storage.GetContext() // push something on stack to check it's dropped
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if v == 11 {
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return inline.VarSum(2, 20, 200)
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}
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}
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return 0
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}`
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eval(t, src, big.NewInt(222))
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})
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}
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func TestInlineInSwitch(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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func Main() int {
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switch inline.VarSum(1, 2) {
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case inline.VarSum(3, 1):
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return 10
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case inline.VarSum(4, -1):
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return 11
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default:
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return 12
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}
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}`
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eval(t, src, big.NewInt(11))
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}
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func TestInlineGlobalVariable(t *testing.T) {
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t.Run("simple", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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var a = inline.Sum(1, 2)
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func Main() int {
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return a
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}`
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eval(t, src, big.NewInt(3))
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})
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t.Run("complex", func(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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var a = inline.Sum(3, 4)
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var b = inline.SumSquared(1, 2)
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var c = a + b
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func init() {
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c--
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}
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func Main() int {
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return c
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}`
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eval(t, src, big.NewInt(15))
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})
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}
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func TestInlineVariadicInInlinedCall(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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func Main() int {
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return inline.SumSquared(inline.SumVar(3, 4) - 2, 3)
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}`
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eval(t, src, big.NewInt(64))
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}
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func TestInlineConversion(t *testing.T) {
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src1 := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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var _ = inline.A
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func Main() int {
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a := 2
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return inline.SumSquared(1, a)
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}`
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b1, err := compiler.Compile("foo.go", strings.NewReader(src1))
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require.NoError(t, err)
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src2 := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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var _ = inline.A
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func Main() int {
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a := 2
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{
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return (1 + a) * (1 + a)
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}
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}`
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b2, err := compiler.Compile("foo.go", strings.NewReader(src2))
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require.NoError(t, err)
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require.Equal(t, b2, b1)
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}
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func TestInlineConversionQualified(t *testing.T) {
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src1 := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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var A = 1
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func Main() int {
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return inline.Concat(A)
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}`
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b1, err := compiler.Compile("foo.go", strings.NewReader(src1))
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require.NoError(t, err)
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src2 := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline/b"
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var A = 1
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func Main() int {
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return A * 100 + b.A * 10 + inline.A
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}`
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b2, err := compiler.Compile("foo.go", strings.NewReader(src2))
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require.NoError(t, err)
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require.Equal(t, b2, b1)
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}
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func TestPackageVarsInInlinedCalls(t *testing.T) {
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src := `package foo
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline"
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import "github.com/nspcc-dev/neo-go/pkg/compiler/testdata/inline/b"
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func Main() int {
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return inline.Sum(inline.A, b.A)
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}`
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eval(t, src, big.NewInt(13))
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}
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