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fix: decode struct with pointer must be nil (#473)
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misyuari committed Oct 19, 2023
1 parent 3d5ab28 commit df897ae
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Showing 2 changed files with 8 additions and 0 deletions.
7 changes: 7 additions & 0 deletions decode_test.go
Expand Up @@ -197,6 +197,13 @@ func Test_Decoder(t *testing.T) {
assertEq(t, "interface{}", v.F, nil)
assertEq(t, "nilfunc", true, v.G == nil)
})
t.Run("struct.pointer must be nil", func(t *testing.T) {
var v struct {
A *int
}
json.Unmarshal([]byte(`{"a": "alpha"}`), &v)
assertEq(t, "struct.A", v.A, (*int)(nil))
})
})
t.Run("interface", func(t *testing.T) {
t.Run("number", func(t *testing.T) {
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1 change: 1 addition & 0 deletions internal/decoder/ptr.go
Expand Up @@ -85,6 +85,7 @@ func (d *ptrDecoder) Decode(ctx *RuntimeContext, cursor, depth int64, p unsafe.P
}
c, err := d.dec.Decode(ctx, cursor, depth, newptr)
if err != nil {
*(*unsafe.Pointer)(p) = nil
return 0, err
}
cursor = c
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