mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-10-16 23:46:26 +00:00
5d3da26e1e
Sequence points is a way to map a specific instruction offset from a compiled contract to a text span in a source file. This commit implements mapping only for `return` statements. Further improvements are straight-forward.
127 lines
2.8 KiB
Go
127 lines
2.8 KiB
Go
package compiler
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import (
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/internal/testserdes"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestCodeGen_DebugInfo(t *testing.T) {
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src := `package foo
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func Main(op string) bool {
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res := methodInt(op)
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_ = methodString()
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_ = methodByteArray()
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_ = methodArray()
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_ = methodStruct()
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return res == 42
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}
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func methodInt(a string) int {
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if a == "get42" {
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return 42
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}
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return 3
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}
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func methodString() string { return "" }
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func methodByteArray() []byte { return nil }
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func methodArray() []bool { return nil }
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func methodStruct() struct{} { return struct{}{} }
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`
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info, err := getBuildInfo(src)
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require.NoError(t, err)
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pkg := info.program.Package(info.initialPackage)
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c := newCodegen(info, pkg)
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require.NoError(t, c.compile(info, pkg))
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buf := c.prog.Bytes()
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d := c.emitDebugInfo()
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require.NotNil(t, d)
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t.Run("return types", func(t *testing.T) {
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returnTypes := map[string]string{
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"methodInt": "Integer",
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"methodString": "String", "methodByteArray": "ByteArray",
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"methodArray": "Array", "methodStruct": "Struct",
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"Main": "Boolean",
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}
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for i := range d.Methods {
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name := d.Methods[i].Name.Name
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assert.Equal(t, returnTypes[name], d.Methods[i].ReturnType)
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}
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})
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// basic check that last instruction of every method is indeed RET
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for i := range d.Methods {
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index := d.Methods[i].Range.End
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require.True(t, int(index) < len(buf))
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require.EqualValues(t, opcode.RET, buf[index])
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}
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}
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func TestSequencePoints(t *testing.T) {
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src := `package foo
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func Main(op string) bool {
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if op == "123" {
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return true
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}
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return false
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}`
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info, err := getBuildInfo(src)
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require.NoError(t, err)
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pkg := info.program.Package(info.initialPackage)
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c := newCodegen(info, pkg)
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require.NoError(t, c.compile(info, pkg))
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d := c.emitDebugInfo()
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require.NotNil(t, d)
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// Main func has 2 return on 4-th and 6-th lines.
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ps := d.Methods[0].SeqPoints
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require.Equal(t, 2, len(ps))
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require.Equal(t, 4, ps[0].StartLine)
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require.Equal(t, 6, ps[1].StartLine)
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}
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func TestDebugInfo_MarshalJSON(t *testing.T) {
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d := &DebugInfo{
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EntryPoint: "main",
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Documents: []string{"/path/to/file"},
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Methods: []MethodDebugInfo{
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{
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ID: "id1",
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Name: DebugMethodName{
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Namespace: "default",
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Name: "method1",
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},
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Range: DebugRange{Start: 10, End: 20},
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Parameters: []DebugParam{
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{"param1", "Integer"},
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{"ok", "Boolean"},
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},
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ReturnType: "ByteArray",
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Variables: []string{},
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SeqPoints: []DebugSeqPoint{
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{
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Opcode: 123,
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Document: 1,
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StartLine: 2,
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StartCol: 3,
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EndLine: 4,
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EndCol: 5,
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},
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},
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},
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},
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Events: []EventDebugInfo{},
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}
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testserdes.MarshalUnmarshalJSON(t, d, new(DebugInfo))
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}
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