| commit | 85dfcd8601230b0c684042ce5e80f7f5a2dea354 | [log] [tgz] |
|---|---|---|
| author | Aske Simon Christensen <askesc@google.com> | Fri Mar 31 07:25:08 2023 |
| committer | Commit Queue <dart-scoped@luci-project-accounts.iam.gserviceaccount.com> | Fri Mar 31 07:25:08 2023 |
| tree | 19ccfb8928f46fa35ef2772733ed05b4f0bcd786 | |
| parent | 482b4e485c64f29caeadef3a5dd37ba586df1dad [diff] |
[dart2wasm] Compute instance method parameter types from Wasm types. This improves the precision of the Wasm types for Dart function types in instance method signatures. It could in principle also improve the precision of the receiver parameter from the LUB of the representation types to the LUB of the actual structs for the classes implementing the member. However, if at a call site the receiver parameter type is more precise than the representation type of the receiver, the call site will need to cast the receiver to the more precise type. This gives rise to more casts in practice than the ones saved inside the methods by the more precise receiver parameter type. For this reason, the receiver parameter type is kept at the LUB of the representation types of the classes implementing the member. This change is also a stepping stone towards not having `ClassInfo` for the special Wasm types. CoreLibraryReviewExempt: Only affects Wasm-specific libraries. Change-Id: I81ca5aa1107f1c04ed7729a758e983698492a106 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/288400 Reviewed-by: Joshua Litt <joshualitt@google.com> Commit-Queue: Aske Simon Christensen <askesc@google.com>
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