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panic while unmarshall #1050

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n-bes opened this issue Sep 25, 2024 · 0 comments
Open

panic while unmarshall #1050

n-bes opened this issue Sep 25, 2024 · 0 comments

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@n-bes
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n-bes commented Sep 25, 2024

Instead of panic I expected just error. Repro:

$ go version
go version go1.23.1 darwin/arm64
package main

import (
	"gopkg.in/yaml.v3"
	"os"
)

type SomeStruct struct {
	data string `yaml:"data"`
}

func main() {
	someStruct := SomeStruct{}

	var data = []byte{
		0x34, 0x30, 0x79, 0x3a,
		0x3a, 0x0d, 0x0d, 0x0d,
		0x0d, 0x0d, 0x0d, 0x0d,
		0x0d, 0x3c, 0x3c, 0x3a,
		0x0d, 0x0d, 0x0d, 0x0d,
		0x0d, 0x0d, 0x0d, 0x2d,
		0x20, 0x20, 0x2d, 0x20,
		0x23, 0x0d, 0x3f, 0x0d,
		0x23, 0x0d, 0x0d, 0x23,
		0x2d, 0x0d, 0x20, 0x2d,
		0x0d, 0x3f, 0x0d, 0x23,
		0x0d, 0x0d, 0x23, 0x2d,
		0x2d,
	}
	yaml.Unmarshal(data, &someStruct)

	os.Exit(0)
}
panic: runtime error: hash of unhashable type []interface {} [recovered]
        panic: runtime error: hash of unhashable type []interface {}

goroutine 1 [running]:
gopkg.in/yaml%2ev3.handleErr(0x140000cfe88)
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/yaml.go:294 +0x80
panic({0x1044f1fe0?, 0x1400008e340?})
        /go/libexec/src/runtime/panic.go:785 +0x124
gopkg.in/yaml%2ev3.(*decoder).merge(0x140000c95e0, 0x140000d2320, 0x140000d25a0, {0x1044f3c20?, 0x1400008e230?, 0x0?})
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/decode.go:966 +0x138
gopkg.in/yaml%2ev3.(*decoder).mappingStruct(0x140000c95e0, 0x140000d2320, {0x1044f3c20?, 0x1400008e230?, 0x8?})
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/decode.go:950 +0xc28
gopkg.in/yaml%2ev3.(*decoder).mapping(0x140000c95e0, 0x140000d2320, {0x1044f3c20?, 0x1400008e230?, 0x0?})
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/decode.go:786 +0x84
gopkg.in/yaml%2ev3.(*decoder).unmarshal(0x140000c95e0, 0x140000d2320, {0x1044f3c20?, 0x1400008e230?, 0x3?})
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/decode.go:510 +0x364
gopkg.in/yaml%2ev3.(*decoder).document(...)
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/decode.go:527
gopkg.in/yaml%2ev3.(*decoder).unmarshal(0x140000c95e0, 0x140000d2280, {0x1044f3c20?, 0x1400008e230?, 0x12b155228?})
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/decode.go:498 +0x248
gopkg.in/yaml%2ev3.unmarshal({0x140000ae080, 0x31, 0x31}, {0x1044e7960, 0x1400008e230}, 0xac?)
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/yaml.go:167 +0x334
gopkg.in/yaml%2ev3.Unmarshal(...)
        /go/pkg/mod/gopkg.in/yaml.v3@v3.0.1/yaml.go:89
main.main()
        /random_project/main.go:30 +0xd8

Process finished with the exit code 2
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