Anders Fugmann d91b3899ae Kotlin: converge synthetic property-access locations to the K2 signature span
For a property such as `val prop: Int = 1`, the compiler generates synthetic
`this.prop` accesses (inside the default getter and the primary-constructor field
initialiser). The K1 and K2 frontends give these synthetic accesses different
source spans:

  * K1 runs the span through the initialiser: `variables.kt:3:5:3:21`
  * K2 stops at the end of the type signature:  `variables.kt:3:5:3:17`

The property *declaration* location is `3:21` under both frontends and is left
untouched; only these synthetic *access* expressions diverged. The K2 signature
span (val/var keyword to the end of the type, or to the end of the name when the
type is inferred) is the more intuitive location: it points at the property's
signature rather than incidentally swallowing the initialiser expression, so a
`this.prop` read is not reported as spanning code it does not evaluate.

We adopt the K2 span and reproduce it under K1 from PSI. New helper
`getPsiBasedPropertySignatureAccessLocation` returns the signature span only when
the access resolves (via `findPsiElement`) to the enclosing `KtProperty`, which is
true exactly for these synthetic property-declaration-anchored accesses. It returns
null under K2 (no PSI is available there, and the raw IR offset already gives the
signature span) and for every ordinary source-written access (whose PSI is the
reference expression, not the whole declaration), so canonical K2 output and normal
accesses are unaffected. It is wired into the `IrGetField` read path and into
`extractThisAccess`.

Effect: tk1 `variables/variables.expected` becomes byte-identical to tk2;
`variables/variableAccesses.expected` drops to only the separate implicit-`this`
call-receiver span divergence; genericExprTypes/exprs/methods synthetic
property-access rows all move from the through-initialiser span onto the K2
signature span. All 3333 tests pass in both suites; test-kotlin2 is unchanged.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-07-13 17:50:12 +02:00
2022-10-20 08:21:02 -04:00
2026-05-27 17:41:44 +02:00
2026-07-09 03:03:43 +00:00
2026-06-29 12:05:42 +02:00
2026-02-10 13:44:04 +01:00
2018-09-23 16:24:31 -07:00
2025-09-25 14:03:39 +01:00
2026-05-12 11:24:35 +00:00
2026-05-08 13:41:45 +00:00
2022-04-12 12:40:59 +02:00
2024-05-07 13:09:08 +01:00

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CodeQL: the libraries and queries that power security researchers around the world, as well as code scanning in GitHub Advanced Security
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