[Kotlin] getSignature returns undefined due to getChildByField on fieldless grammar #1495

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1. colbymchenry commented on Sep 9, 2026

   

   colbymchenry

   on Sep 9, 2026

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   Fixed in #1807 (57d9132c), landing upstream #1687 (@danusha2345) onto current main as a Forge PR.

   Root cause

   tree-sitter-kotlin has no field names, so getSignature via getChildByField('function_value_parameters' / 'type') always missed → every Kotlin function/method had signature: undefined.

   Fix

   Positional namedChildren read (same pattern as extractKotlinReturnType) in wasm kotlin.ts + kernel signature_of lockstep.

   Linux verify (fail → pass)

   Symbol	Before	After (wasm + kernel)
   greet	undefined	(name: String): String
   noReturn	undefined	(x: Int)
   topLevel	undefined	(a: Int, b: Int): Int

   Undefined signatures 3 → 0; wasm/kernel parity PASS. Focused tests: 31 passed (kernel-kotlin-parity + Kotlin extraction + kernel-scaffold) with CODEGRAPH_KERNEL_EXPECT=1.

   Closing as completed. Upstream #1687 will be closed as superseded by #1807.
2. colbymchenry

   closed this as completedon Sep 9, 2026
3. colbymchenry

   added a commit that references this issue on Sep 9, 2026

   fix(kotlin): read a function's signature positionally (#1495) (#1807)

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   748311f