Transform the supported configuration call shape without reordering evaluation
Wrapping arguments into an object could reorder side-effecting expressions. Preserve the old left-to-right evaluation order.
- Focused work estimate
- 3h + prerequisites
- Priority in the scenario
- High
- Engineering practice
- Semantics · Refactoring
Estimated field mix
- Compiler and language tooling100%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
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Project context
Fictional package Laurel replaces configure(name, options) with configure({name, options}). Build synthetic TypeScript-like AST fixtures or use the repository's installed parser; source is analyzed, never executed.
Setup prerequisites
- Create synthetic supported and ambiguous call-site fixtures.
- Define the exact old/new API contract and a dedicated output directory.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
Acceptance criteria
- Name expression remains first
- Options remains second
- No expression duplicates or disappears
Implementation constraints
- Verify syntax structure without executing candidate expressions.
Verification to include
- Transform ordinary expressions
- Use synthetic call expressions in both positions
Deliverables
- Transformation and AST-order checks
Rollout and recovery
Revert transformed files if evaluation order cannot be preserved.
Value of the work
For the engineer: Practice conservative automated refactoring and reviewable uncertainty.
For the team: Inspect whether migration automation reduces repetitive work without silent semantic changes.
Evidence boundaries
Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.
Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.