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SYS-REQ-050SystemReview

When Delete is called with an array-element path on input where the array is truncated (e.g., Delete([]byte(`{"a":[1,2`), "a", "[1]")), the parser shall return the original byte payload unchanged and shall not panic.

PriorityshallTypeguaranteeCategoryfunctionalComponentparserAssuranceEFindingsnone open

Specification

The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.

Description

When Delete is called with an array-element path on input where the array is truncated (e.g., Delete([]byte(`{"a":[1,2`), "a", "[1]")), the parser shall return the original byte payload unchanged and shall not panic.

FRETish formula
the parser shall always satisfy !delete_array_input_is_truncated | (delete_returns_original_input_on_truncated_array & delete_completes_without_panic_on_truncated_array)

Rationale & tags

Why this requirement exists, and how it is categorised.

Array deletion on truncated input exercises the same tokenEnd sentinel pattern as object deletion but through a different code path in Delete (the array branch).

deletearraytruncation

Verification & provenance

How this requirement was checked: the review trail, edit history, and the machine-analysis status terms (each ⓘ explains what it means).

Assurance levelE
Formalizationvalid
Realizabilityrealizable
Vacuitychecked_ok
Strategyfretish

Review

Status
approved
Reviewer
human:leonidbugaev
Reviewed
Apr 23, 2026, 00:00 UTC

History

Created
Apr 14, 2026, 18:00 UTC · agent:claude
Modified
Apr 14, 2026, 18:00 UTC · agent:claude

Obligations

What this requirement must witness to be considered satisfied — the required evidence, and the tests that discharge each one.

No obligations recorded for this requirement

Proof obligations are recorded once evidence is generated. None have been captured here yet — this is expected, not a gap in the requirement itself. A required class of evidence the requirement must witness — the bridge between the requirement existing and it being proven.

Formula evidence

The formal formula behind this requirement, the variables it is written over, and the tests that exercise it (each term is explained inline).

FRETish formula

the parser shall always satisfy !delete_array_input_is_truncated | (delete_returns_original_input_on_truncated_array & delete_completes_without_panic_on_truncated_array)

Variables

NameTypeDirectionDescription
delete_array_input_is_truncatedTrue when Delete is called with an array-element path on input where the array is truncated.
delete_returns_original_input_on_truncated_arrayTrue when Delete returns the original byte payload unchanged for truncated array input.
delete_completes_without_panic_on_truncated_arrayTrue when Delete completes without panicking on truncated array input.

Witnesses· 5 scenarios total

  • TestDeleteTruncatedArrayInput
    deep_spec_test.go:258
  • TestMCDC_SYS_REQ_050_Row1_TriggerFalse
    mcdc_spec_witnesses_test.go:1754exercises 1 condition scenario
  • TestMCDC_SYS_REQ_050_Row2_InvariantViolationPanic
    mcdc_spec_witnesses_test.go:1769exercises 1 condition scenario
  • TestMCDC_SYS_REQ_050_Row3_InvariantViolationOriginal
    mcdc_spec_witnesses_test.go:1779exercises 1 condition scenario
  • TestMCDC_SYS_REQ_050_Row4_InvariantViolationNoPanic
    mcdc_spec_witnesses_test.go:1789exercises 1 condition scenario
  • TestMCDC_SYS_REQ_050_Row5_TruncatedArray
    mcdc_spec_witnesses_test.go:1799exercises 1 condition scenario

Its place

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Trace evidence

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Impact

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If you change this

Requirements
0
Files
1
Tests
2
At-risk contracts
0

Files to re-check (1)

  • parser.goparser.go

Tests to re-run (2)

  • deep_spec_test.godeep_spec_test.go
  • mcdc_spec_witnesses_test.gomcdc_spec_witnesses_test.go

What this rests on

Discussions

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