carbon-language/carbon-lang
1
0
Fork 0
mirror of https://github.com/carbon-language/carbon-lang.git synced 2026-10-05 22:02:55 +01:00
Code Issues Packages Projects Releases 10 Wiki Activity

teaches arithmetic interfaces about C++ operators (#7123)

Browse Source
This commit is contained in:
Christopher Di Bella
2026-04-28 01:00:21 +00:00
committed by GitHub
parent aa8f9d8c00
commit 9480c10ecf
11 changed files with 4160 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
toolchain/check/testdata/interop/cpp/operators/arithmetic_operators.carbon
Vendored
+3845
View File
File diff suppressed because it is too large Load Diff
toolchain/check/testdata/interop/cpp/operators/operators.carbon
Vendored
-29
View File
@@ -822,35 +822,6 @@ fn F() {
//@dump-sem-ir-end
}
// ============================================================================
// Satisfying constraints
// ============================================================================
// --- fail_todo_constraints.carbon
library "[[@TEST_NAME]]";
import Cpp inline '''
class X {};
X operator+(X, X);
''';
// TODO: Use Core.Add() when it is available.
// TODO: `Sum()` should be declared this way when generics implementation is ready for that:
// fn Sum[T:! Core.AddWith(.Self) where .Result = .Self](a: T, b: T) -> T
fn Sum[U:! type, T:! Core.AddWith(U) where .Result = U](a: T, b: U) -> U {
return a + b;
}
fn Call(x: Cpp.X) -> Cpp.X {
// CHECK:STDERR: fail_todo_constraints.carbon:[[@LINE+7]]:10: error: cannot convert type `Cpp.X` into type implementing `Core.AddWith(Cpp.X) where .(Core.AddWith(Cpp.X).Result) = Cpp.X` [ConversionFailureTypeToFacet]
// CHECK:STDERR: return Sum(x, x);
// CHECK:STDERR: ^~~~~~~~~
// CHECK:STDERR: fail_todo_constraints.carbon:[[@LINE-7]]:1: note: while deducing parameters of generic declared here [DeductionGenericHere]
// CHECK:STDERR: fn Sum[U:! type, T:! Core.AddWith(U) where .Result = U](a: T, b: U) -> U {
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
return Sum(x, x);
}
// ============================================================================
// Operator not found