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Merged
merged 12 commits into from
Nov 5, 2025
Merged

Improve JSON decode error messages with path context #4302

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696d0db
Improve JSON decode error messages with path context
devin-ai-integration[bot] Oct 14, 2025
69033f6
Optimize path tracking to avoid string allocations
devin-ai-integration[bot] Oct 14, 2025
01617e9
Add tests for error context in JSON decoding
devin-ai-integration[bot] Oct 14, 2025
1981f47
Refactor all decode methods to use WithContext versions
devin-ai-integration[bot] Oct 15, 2025
6a54ee2
Improve JSON decode error messages with path context
devin-ai-integration[bot] Oct 15, 2025
a33eba3
improve decoding: keep decoding path for all properties and indices
turbolent Oct 16, 2025
84d6b45
Merge branch 'master' into bastian/improve-json-cdc-decoding
turbolent Oct 16, 2025
0a4b6d6
fix error formatting
turbolent Oct 16, 2025
6156f89
Merge branch 'master' into bastian/improve-json-cdc-decoding
turbolent Nov 4, 2025
f8730e3
improve method naming
turbolent Nov 4, 2025
cd1c772
fix and improve tests. assert there are JSON-CDC decoding errors, not…
turbolent Nov 4, 2025
ebe6555
improve indexing of JSON array elements
turbolent Nov 4, 2025
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35 changes: 28 additions & 7 deletions encoding/ccf/ccf_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2583,7 +2583,10 @@ func TestDecodeWord128Invalid(t *testing.T) {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
})
require.Error(t, err)
assert.Equal(t, "ccf: failed to decode: failed to decode Word128: cbor: cannot decode CBOR tag type to big.Int", err.Error())
assert.ErrorContains(t,
err,
"failed to decode Word128: cbor: cannot decode CBOR tag type to big.Int",
)
}
}

Expand Down Expand Up @@ -2683,7 +2686,10 @@ func TestDecodeWord256Invalid(t *testing.T) {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
})
require.Error(t, err)
assert.Equal(t, "ccf: failed to decode: failed to decode Word256: cbor: cannot decode CBOR tag type to big.Int", err.Error())
assert.ErrorContains(t,
err,
"failed to decode Word256: cbor: cannot decode CBOR tag type to big.Int",
)
}
}

Expand Down Expand Up @@ -10922,7 +10928,10 @@ func TestEncodeType(t *testing.T) {

_, err := ccf.Decode(nil, encodedData)
require.Error(t, err)
assert.Equal(t, "ccf: failed to decode: unexpected empty intersection type", err.Error())
assert.ErrorContains(t,
err,
"unexpected empty intersection type",
)

})

Expand Down Expand Up @@ -10953,7 +10962,10 @@ func TestEncodeType(t *testing.T) {

_, err := ccf.Decode(nil, encodedData)
require.Error(t, err)
assert.Equal(t, "ccf: failed to decode: unexpected empty intersection type", err.Error())
assert.ErrorContains(t,
err,
"unexpected empty intersection type",
)
})

t.Run("with static intersection type", func(t *testing.T) {
Expand Down Expand Up @@ -12817,7 +12829,10 @@ func TestDecodeInvalidType(t *testing.T) {
for _, dm := range decModes {
_, err := dm.Decode(nil, encodedData)
require.Error(t, err)
assert.Equal(t, "ccf: failed to decode: invalid type ID for built-in: ``", err.Error())
assert.ErrorContains(t,
err,
"invalid type ID for built-in: ``",
)
}
})

Expand Down Expand Up @@ -12875,7 +12890,10 @@ func TestDecodeInvalidType(t *testing.T) {
for _, dm := range decModes {
_, err := dm.Decode(nil, encodedData)
require.Error(t, err)
assert.Equal(t, "ccf: failed to decode: invalid type ID `I`: invalid identifier location type ID: missing location", err.Error())
assert.ErrorContains(t,
err,
"invalid type ID `I`: invalid identifier location type ID: missing location",
)
}
})

Expand Down Expand Up @@ -12933,7 +12951,10 @@ func TestDecodeInvalidType(t *testing.T) {
for _, dm := range decModes {
_, err := dm.Decode(nil, encodedData)
require.Error(t, err)
assert.Equal(t, "ccf: failed to decode: invalid type ID for built-in: `N.PublicKey`", err.Error())
assert.ErrorContains(t,
err,
"invalid type ID for built-in: `N.PublicKey`",
)
}
})
}
Expand Down
4 changes: 2 additions & 2 deletions encoding/ccf/decode.go
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Original file line number Diff line number Diff line change
Expand Up @@ -591,7 +591,7 @@ func (d *Decoder) decodeValue(t cadence.Type, types *cadenceTypeByCCFTypeID) (ca
default:
err := decodeCBORTagWithKnownNumber(d.dec, CBORTagTypeAndValue)
if err != nil {
return nil, fmt.Errorf("unexpected encoded value of Cadence type %s (%T): %s", t.ID(), t, err.Error())
return nil, fmt.Errorf("unexpected encoded value of Cadence type %s (%T): %w", t.ID(), t, err)
}

// Decode ccf-type-and-value-message.
Expand Down Expand Up @@ -1538,7 +1538,7 @@ func (d *Decoder) decodeCapability(typ *cadence.CapabilityType, types *cadenceTy
if nextType == cbor.TagType {
err := decodeCBORTagWithKnownNumber(d.dec, CBORTagTypeAndValue)
if err != nil {
return nil, fmt.Errorf("unexpected encoded value of Cadence type %s (%T): %s", typ.ID(), typ, err.Error())
return nil, fmt.Errorf("unexpected encoded value of Cadence type %s (%T): %w", typ.ID(), typ, err)
}

// Decode ccf-type-and-value-message.
Expand Down
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