Make C++ types impl Core.Default. (#6962)

C++ classes that are default-constructible now implement `Core.Default`
by calling the default constructor.
This commit is contained in:
Richard Smith
2026-03-25 21:07:24 +00:00
committed by GitHub
parent 311670c84a
commit 37b238fa28
49 changed files with 1069 additions and 426 deletions
+2 -2
View File
@@ -127,7 +127,7 @@ fn CallGOnInitializingExpr() -> i32 {
// CHECK:STDOUT: %DefaultOrUnformed.type: type = facet_type <@DefaultOrUnformed> [concrete]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T.67d) [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.ae1: %T.as.DefaultOrUnformed.impl.Op.type.6c6 = struct_value () [symbolic]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.6ca: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%Class) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.6ca: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table.349, @T.as.DefaultOrUnformed.impl(%Class) [concrete]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.3d0: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%Class) [concrete]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.cda: %T.as.DefaultOrUnformed.impl.Op.type.3d0 = struct_value () [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value %Class, (%DefaultOrUnformed.impl_witness.6ca) [concrete]
@@ -167,7 +167,7 @@ fn CallGOnInitializingExpr() -> i32 {
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: %Core.DefaultOrUnformed: type = import_ref Core//prelude/parts/default, DefaultOrUnformed, loaded [concrete = constants.%DefaultOrUnformed.type]
// CHECK:STDOUT: %Core.import_ref.01d: @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op.type (%T.as.DefaultOrUnformed.impl.Op.type.6c6) = import_ref Core//prelude/parts/default, loc{{\d+_\d+}}, loaded [symbolic = @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op (constants.%T.as.DefaultOrUnformed.impl.Op.ae1)]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table.349 = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
+4 -4
View File
@@ -40,10 +40,10 @@ fn Run() -> i32 {
// CHECK:STDOUT: %Run: %Run.type = struct_value () [concrete]
// CHECK:STDOUT: %pattern_type.904: type = pattern_type %Class [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.type: type = facet_type <@DefaultOrUnformed> [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T) [symbolic]
// CHECK:STDOUT: %T.67d: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.6c6: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%T.67d) [symbolic]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.ae1: %T.as.DefaultOrUnformed.impl.Op.type.6c6 = struct_value () [symbolic]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.6ca: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table, @T.as.DefaultOrUnformed.impl(%Class) [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness.6ca: <witness> = impl_witness imports.%DefaultOrUnformed.impl_witness_table.349, @T.as.DefaultOrUnformed.impl(%Class) [concrete]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.type.3d0: type = fn_type @T.as.DefaultOrUnformed.impl.Op, @T.as.DefaultOrUnformed.impl(%Class) [concrete]
// CHECK:STDOUT: %T.as.DefaultOrUnformed.impl.Op.cda: %T.as.DefaultOrUnformed.impl.Op.type.3d0 = struct_value () [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.facet: %DefaultOrUnformed.type = facet_value %Class, (%DefaultOrUnformed.impl_witness.6ca) [concrete]
@@ -64,7 +64,7 @@ fn Run() -> i32 {
// CHECK:STDOUT: %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: %Core.DefaultOrUnformed: type = import_ref Core//prelude/parts/default, DefaultOrUnformed, loaded [concrete = constants.%DefaultOrUnformed.type]
// CHECK:STDOUT: %Core.import_ref.01d: @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op.type (%T.as.DefaultOrUnformed.impl.Op.type.6c6) = import_ref Core//prelude/parts/default, loc{{\d+_\d+}}, loaded [symbolic = @T.as.DefaultOrUnformed.impl.%T.as.DefaultOrUnformed.impl.Op (constants.%T.as.DefaultOrUnformed.impl.Op.ae1)]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: %DefaultOrUnformed.impl_witness_table.349 = impl_witness_table (%Core.import_ref.01d), @T.as.DefaultOrUnformed.impl [concrete]
// CHECK:STDOUT: %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: