135 lines
3.7 KiB
Go
135 lines
3.7 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 int) {
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v := vmAndCompile(t, src)
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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, _, err := ctx.Next(); ; op, _, 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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}
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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.Equal(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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// 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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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, 1)
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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, 1)
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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, 1)
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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, 1)
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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, 1)
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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, 1)
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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)
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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, 1)
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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)
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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)
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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)
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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)
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eval(t, src, big.NewInt(42))
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})
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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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