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157 lines
3.4 KiB
Plaintext
157 lines
3.4 KiB
Plaintext
env GOPRIVATE=test/main
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garble build
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exec ./main
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cmp stdout main.stdout
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! binsubstr main$exe 'main.go' 'test/main' 'importedpkg.'
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binsubstr main$exe 'ReflectInDefined' 'ExportedField2' 'unexportedField2'
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[short] stop # no need to verify this with -short
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# Check that the program works as expected without garble.
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go build
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exec ./main
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cmp stdout main.stdout
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-- go.mod --
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module test/main
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go 1.16
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-- main.go --
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package main
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import (
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"encoding/json"
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"fmt"
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"reflect"
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"strings"
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"test/main/importedpkg"
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)
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func main() {
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// Fields still work fine when they are not obfuscated.
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fmt.Println(importedpkg.ReflectInDefinedVar.ExportedField2)
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fmt.Println(importedpkg.ReflectInDefined{ExportedField2: 5})
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// Type names are not obfuscated either, when reflection is used.
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printfWithoutPackage("%T\n", importedpkg.ReflectTypeOf(2))
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printfWithoutPackage("%T\n", importedpkg.ReflectTypeOfIndirect(4))
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// More complex use of reflect.
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v := importedpkg.ReflectValueOfVar
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printfWithoutPackage("%#v\n", v)
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method := reflect.ValueOf(&v).MethodByName("ExportedMethodName")
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if method.IsValid() {
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fmt.Println(method.Call(nil))
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} else {
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fmt.Println("method not found")
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}
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// Use of a common library using reflect, encoding/json.
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// TODO: remove the TypeOf hint once we detect json.Marshal.
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_ = reflect.TypeOf(EncodingT{})
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enc, _ := json.Marshal(EncodingT{Foo: 3})
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println(string(enc))
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// Another complex case, involving embedding and another package.
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outer := &importedpkg.EmbeddingOuter{}
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outer.InnerField = 3
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enc, _ = json.Marshal(outer)
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println(string(enc))
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// An edge case; the struct type is defined in a different package.
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// Note that the struct type is unnamed, but it still has named fields.
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// We only use reflection on it here, not the declaring package.
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// As such, we should obfuscate the field name.
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// Simply using the field name here used to cause build failures.
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_ = reflect.TypeOf(importedpkg.UnnamedWithDownstreamReflect{})
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fmt.Printf("%v\n", importedpkg.UnnamedWithDownstreamReflect{
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ExportedField: "foo",
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})
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}
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func printfWithoutPackage(format string, v interface{}) {
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s := fmt.Sprintf(format, v)
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if i := strings.IndexByte(s, '.'); i > 0 {
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s = s[i+1:]
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}
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fmt.Print(s)
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}
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type EncodingT struct {
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Foo int
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}
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type RecursiveStruct struct {
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*RecursiveStruct
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list []RecursiveStruct
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}
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// This could crash or hang if we don't deal with loops.
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var _ = reflect.TypeOf(RecursiveStruct{})
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-- importedpkg/imported.go --
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package importedpkg
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import (
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"reflect"
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)
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type ReflectTypeOf int
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var _ = reflect.TypeOf(ReflectTypeOf(0))
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type ReflectTypeOfIndirect int
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var _ = reflect.TypeOf(new([]*ReflectTypeOfIndirect))
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type ReflectValueOf struct {
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ExportedField string
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unexportedField string
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}
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func (r *ReflectValueOf) ExportedMethodName() string { return "method: " + r.ExportedField }
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var ReflectValueOfVar = ReflectValueOf{ExportedField: "abc"}
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var _ = reflect.TypeOf(ReflectValueOfVar)
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type ReflectInDefined struct {
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ExportedField2 int
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unexportedField2 int
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}
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var ReflectInDefinedVar = ReflectInDefined{ExportedField2: 9000}
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var _ = reflect.TypeOf(ReflectInDefinedVar)
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var _ = reflect.TypeOf([]*struct{EmbeddingOuter}{})
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type EmbeddingOuter struct {
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EmbeddingInner
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Anon struct {
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AnonField int
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}
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}
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type EmbeddingInner struct {
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InnerField int
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}
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type UnnamedWithDownstreamReflect = struct {
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ExportedField string
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}
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-- main.stdout --
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9000
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{5 0}
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ReflectTypeOf
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ReflectTypeOfIndirect
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ReflectValueOf{ExportedField:"abc", unexportedField:""}
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[method: abc]
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{foo}
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