mirror of
https://github.com/burrowers/garble
synced 2026-06-06 15:24:28 +00:00
Daniel Martí
30357af923
This lets us start taking advantage of featurs from Go 1.23, particularly tracking aliases in go/types and iterators. Note that we need to add code to properly handle or skip over the new *types.Alias type which go/types produces for Go type aliases. Also note that we actually turn this mode off entirely for now, due to the bug reported at https://go.dev/issue/70394. We don't yet remove our own alias tracking code yet due to the above. We hope to be able to remove it very soon.
122 lines
3.1 KiB
Plaintext
122 lines
3.1 KiB
Plaintext
exec garble build
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exec ./main
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! stdout 'garble_main\.go|garble_other_filename|is sorted'
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! binsubstr main$exe 'garble_main.go' 'garble_other_filename'
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[short] stop # no need to verify this with -short
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go build
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exec ./main
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stdout 'garble_main.go'
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stdout 'garble_other_filename'
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stdout ':19: main'
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stdout 'initPositions is sorted'
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stdout 'varPositions is sorted'
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-- go.mod --
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module test/main
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go 1.23
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-- garble_main.go --
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package main
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import (
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"fmt"
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"runtime"
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"sort"
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)
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var _, globalFile, globalLine, _ = runtime.Caller(0)
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func init() {
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_, file, line, _ := runtime.Caller(0)
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fmt.Printf("%s:%d: init\n", file, line)
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}
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func main() {
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fmt.Printf("%s:%d: global\n", globalFile, globalLine)
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_, file, line, _ := runtime.Caller(0)
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fmt.Printf("%s:%d: main\n", file, line)
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funcDecl()
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funcVar()
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// initPositions is filled by ten consecutive funcs.
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// If we are not shuffling or obfuscating line numbers,
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// this list will be sorted.
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// If we are, it's extremely unlikely it would remain sorted.
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if sort.IsSorted(sort.StringSlice(initPositions)) {
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fmt.Println("initPositions is sorted")
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}
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// Same as the above, but with vars.
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if sort.IsSorted(sort.StringSlice(varPositions)) {
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fmt.Println("varPositions is sorted")
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}
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// Adding "/*text*/" comments here is tricky,
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// as we don't want to turn "a/b" into "a//*text*/b".
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// We need "a/ /*text*/b" to preserve the syntax.
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// The nested expression is needed to prevent spaces.
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fmt.Printf("%v\n", 10*float64(3.0)/float64(4.0))
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}
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// Replacing `s` and `f` with obfuscated names triggered a bug in go/printer,
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// where it would move `.f` after the comment, breaking the syntax.
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func issue_573(s struct{ f int }) {
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var _ *int = &s.f
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/*x*/
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}
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-- garble_other_filename.go --
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package main
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import (
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"fmt"
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"runtime"
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)
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func funcDecl() {
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_, file, line, _ := runtime.Caller(0)
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fmt.Printf("%s:%d: func\n", file, line)
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}
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var funcVar = func() {
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_, file, line, _ := runtime.Caller(0)
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fmt.Printf("%s:%d: func var\n", file, line)
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}
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var initPositions []string
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func curPos() string {
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_, file, line, _ := runtime.Caller(1)
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return fmt.Sprintf("%s:%d", file, line)
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}
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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func init() { initPositions = append(initPositions, curPos()) }
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var varLine0 = curPos()
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var varLine1 = curPos()
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var varLine2 = curPos()
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var varLine3 = curPos()
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var varLine4 = curPos()
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var varLine5 = curPos()
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var varLine6 = curPos()
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var varLine7 = curPos()
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var varLine8 = curPos()
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var varLine9 = curPos()
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var varPositions = []string{
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varLine0, varLine1, varLine2, varLine3, varLine4,
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varLine5, varLine6, varLine7, varLine8, varLine9,
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}
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