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Implement ...where .Self impls... (#5238)
* Also remove facet type deduction, since we decided against it on [2025-04-02](https://docs.google.com/document/d/1Iut5f2TQBrtBNIduF4vJYOKfw7MbS8xH_J01_Q4e6Rk/edit?pli=1&resourcekey=0-mc_vh5UzrzXfU4kO-3tOjA&tab=t.0#heading=h.95phmuvxog9n). --------- Co-authored-by: Josh L <josh11b@users.noreply.github.com> Co-authored-by: Dana Jansens <danakj@orodu.net>
This commit is contained in:
josh11b
co-authored by
Josh L
Dana Jansens
Josh L
Dana Jansens
parent
87f0e9723f
commit
4af0c8f8d1
@@ -35,15 +35,24 @@ impl bool as type {}
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library "[[@TEST_NAME]]";
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// Note: This code is not expected to pass checking, even once the TODO is
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// addressed.
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// CHECK:STDERR: fail_impl_as_type_where.carbon:[[@LINE+4]]:1: error: impl as 0 interfaces, expected 1 [ImplOfNotOneInterface]
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// CHECK:STDERR: impl f64 as type where .Self impls type {}
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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impl f64 as type where .Self impls type {}
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// --- fail_impl_as_type_where_impls_interface.carbon
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library "[[@TEST_NAME]]";
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interface I {}
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// CHECK:STDERR: fail_impl_as_type_where_impls_interface.carbon:[[@LINE+4]]:1: error: impl as 0 interfaces, expected 1 [ImplOfNotOneInterface]
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// CHECK:STDERR: impl {.a: bool} as type where .Self impls I {}
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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impl {.a: bool} as type where .Self impls I {}
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// CHECK:STDOUT: --- fail_impl_as_false.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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@@ -118,7 +127,7 @@ impl f64 as type where .Self impls type {}
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// CHECK:STDOUT: %Float.type: type = fn_type @Float [concrete]
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// CHECK:STDOUT: %Float: %Float.type = struct_value () [concrete]
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// CHECK:STDOUT: %.Self: type = bind_symbolic_name .Self [symbolic_self]
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// CHECK:STDOUT: %type_where: type = facet_type <type where TODO> [concrete]
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// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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@@ -137,17 +146,71 @@ impl f64 as type where .Self impls type {}
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// CHECK:STDOUT: impl_decl @impl [concrete] {} {
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// CHECK:STDOUT: %int_64: Core.IntLiteral = int_value 64 [concrete = constants.%int_64]
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// CHECK:STDOUT: %float.make_type: init type = call constants.%Float(%int_64) [concrete = f64]
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// CHECK:STDOUT: %.loc11_6.1: type = value_of_initializer %float.make_type [concrete = f64]
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// CHECK:STDOUT: %.loc11_6.2: type = converted %float.make_type, %.loc11_6.1 [concrete = f64]
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// CHECK:STDOUT: %.loc8_6.1: type = value_of_initializer %float.make_type [concrete = f64]
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// CHECK:STDOUT: %.loc8_6.2: type = converted %float.make_type, %.loc8_6.1 [concrete = f64]
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// CHECK:STDOUT: %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %.Self.ref: type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %.loc11_18: type = where_expr %.Self [concrete = constants.%type_where] {
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// CHECK:STDOUT: %.loc8_18: type = where_expr %.Self [concrete = constants.%type] {
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// CHECK:STDOUT: requirement_impls %.Self.ref, type
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: %.loc11_6.2 as %.loc11_18 {
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// CHECK:STDOUT: impl @impl: %.loc8_6.2 as %.loc8_18 {
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: witness = <error>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_impl_as_type_where_impls_interface.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
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// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
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// CHECK:STDOUT: %Bool.type: type = fn_type @Bool [concrete]
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// CHECK:STDOUT: %Bool: %Bool.type = struct_value () [concrete]
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// CHECK:STDOUT: %struct_type.a: type = struct_type {.a: bool} [concrete]
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// CHECK:STDOUT: %.Self: type = bind_symbolic_name .Self [symbolic_self]
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// CHECK:STDOUT: %type_where: type = facet_type <type where .Self impls @I> [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
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// CHECK:STDOUT: .Bool = %Core.Bool
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// CHECK:STDOUT: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
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// CHECK:STDOUT: .Core = imports.%Core
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// CHECK:STDOUT: .I = %I.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
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// CHECK:STDOUT: impl_decl @impl [concrete] {} {
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// CHECK:STDOUT: %bool.make_type: init type = call constants.%Bool() [concrete = bool]
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// CHECK:STDOUT: %.loc10_11.1: type = value_of_initializer %bool.make_type [concrete = bool]
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// CHECK:STDOUT: %.loc10_11.2: type = converted %bool.make_type, %.loc10_11.1 [concrete = bool]
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// CHECK:STDOUT: %struct_type.a: type = struct_type {.a: bool} [concrete = constants.%struct_type.a]
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// CHECK:STDOUT: %.Self: type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %.Self.ref: type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
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// CHECK:STDOUT: %.loc10_25: type = where_expr %.Self [concrete = constants.%type_where] {
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// CHECK:STDOUT: requirement_impls %.Self.ref, %I.ref
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @I {
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// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: witness = ()
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: %struct_type.a as %.loc10_25 {
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: witness = <error>
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// CHECK:STDOUT: }
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@@ -40,7 +40,7 @@ fn F() {
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Point as Z;
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}
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// --- todo_fail_impl_simple_where_cycle.carbon
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// --- fail_impl_simple_where_cycle.carbon
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library "[[@TEST_NAME]]";
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interface Y {}
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@@ -48,15 +48,21 @@ interface Z {}
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// This creates a dependency cycle with itself.
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impl forall [T:! type where .Self impls Z] T as Z {}
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// TODO: Remove these two when the above impl can match Point as the self type
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// (and makes a cycle).
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impl forall [T:! Y] T as Z {}
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impl forall [T:! type] T as Y {}
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class Point {}
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fn F() {
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// TODO: A cycle should be found in the `impl forall T as Z` above.
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// CHECK:STDERR: fail_impl_simple_where_cycle.carbon:[[@LINE+11]]:3: error: cycle found in search for impl of `type where .Self impls Z` for type `Point` [ImplLookupCycle]
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// CHECK:STDERR: Point as Z;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR: fail_impl_simple_where_cycle.carbon:[[@LINE-8]]:1: note: determining if this impl clause matches [ImplLookupCycleNote]
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// CHECK:STDERR: impl forall [T:! type where .Self impls Z] T as Z {}
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_impl_simple_where_cycle.carbon:[[@LINE+4]]:3: error: cannot convert type `Point` into type implementing `Z` [ConversionFailureTypeToFacet]
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// CHECK:STDERR: Point as Z;
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// CHECK:STDERR: ^~~~~~~~~~
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// CHECK:STDERR:
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Point as Z;
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}
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@@ -37,6 +37,40 @@ class C {}
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// CHECK:STDERR:
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impl C as J {}
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// --- fail_incomplete_where.carbon
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library "[[@TEST_NAME]]";
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class C {}
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interface I {}
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interface Incomplete;
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// CHECK:STDERR: fail_incomplete_where.carbon:[[@LINE+7]]:1: error: definition of impl as incomplete facet type `I where .Self impls Incomplete` [ImplAsIncompleteFacetTypeDefinition]
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// CHECK:STDERR: impl C as I where .Self impls Incomplete {}
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR: fail_incomplete_where.carbon:[[@LINE-5]]:1: note: interface was forward declared here [InterfaceForwardDeclaredHere]
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// CHECK:STDERR: interface Incomplete;
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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impl C as I where .Self impls Incomplete {}
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// --- fail_declaration_incomplete_where_rewrite.carbon
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library "[[@TEST_NAME]]";
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class C {}
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interface J { let T:! type; }
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interface Incomplete;
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// CHECK:STDERR: fail_declaration_incomplete_where_rewrite.carbon:[[@LINE+7]]:1: error: declaration of impl as incomplete facet type `J where .Self impls Incomplete and .(J.T) = ()` with rewrites [ImplAsIncompleteFacetTypeRewrites]
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// CHECK:STDERR: impl C as J where .Self impls Incomplete and .T = ();
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR: fail_declaration_incomplete_where_rewrite.carbon:[[@LINE-5]]:1: note: interface was forward declared here [InterfaceForwardDeclaredHere]
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// CHECK:STDERR: interface Incomplete;
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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impl C as J where .Self impls Incomplete and .T = ();
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// CHECK:STDOUT: --- fail_empty_struct.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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@@ -100,3 +134,147 @@ impl C as J {}
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// CHECK:STDOUT: .Self = constants.%C
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_incomplete_where.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %C: type = class_type @C [concrete]
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// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
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// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
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// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
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// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
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// CHECK:STDOUT: %Incomplete.type: type = facet_type <@Incomplete> [concrete]
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// CHECK:STDOUT: %.Self: %I.type = bind_symbolic_name .Self [symbolic_self]
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// CHECK:STDOUT: %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
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// CHECK:STDOUT: %I_where.type: type = facet_type <@I where .Self impls @Incomplete> [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
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// CHECK:STDOUT: .C = %C.decl
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// CHECK:STDOUT: .I = %I.decl
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// CHECK:STDOUT: .Incomplete = %Incomplete.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
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// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
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// CHECK:STDOUT: %Incomplete.decl: type = interface_decl @Incomplete [concrete = constants.%Incomplete.type] {} {}
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// CHECK:STDOUT: impl_decl @impl [concrete] {} {
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// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
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// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
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// CHECK:STDOUT: %.Self: %I.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %.Self.ref: %I.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %Incomplete.ref: type = name_ref Incomplete, file.%Incomplete.decl [concrete = constants.%Incomplete.type]
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// CHECK:STDOUT: %.Self.as_type: type = facet_access_type %.Self.ref [symbolic_self = constants.%.Self.as_type]
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// CHECK:STDOUT: %.loc15_19: type = converted %.Self.ref, %.Self.as_type [symbolic_self = constants.%.Self.as_type]
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// CHECK:STDOUT: %.loc15_13: type = where_expr %.Self [concrete = constants.%I_where.type] {
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// CHECK:STDOUT: requirement_impls %.loc15_19, %Incomplete.ref
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @I {
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// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: witness = ()
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @Incomplete;
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: %C.ref as %.loc15_13 {
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: witness = <error>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @C {
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// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
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// CHECK:STDOUT: complete_type_witness = %complete_type
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = constants.%C
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- fail_declaration_incomplete_where_rewrite.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %C: type = class_type @C [concrete]
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// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
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// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
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// CHECK:STDOUT: %J.type: type = facet_type <@J> [concrete]
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// CHECK:STDOUT: %Self: %J.type = bind_symbolic_name Self, 0 [symbolic]
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// CHECK:STDOUT: %J.assoc_type: type = assoc_entity_type @J [concrete]
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// CHECK:STDOUT: %assoc0: %J.assoc_type = assoc_entity element0, @J.%T [concrete]
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// CHECK:STDOUT: %Incomplete.type: type = facet_type <@Incomplete> [concrete]
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// CHECK:STDOUT: %.Self: %J.type = bind_symbolic_name .Self [symbolic_self]
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// CHECK:STDOUT: %.Self.as_type: type = facet_access_type %.Self [symbolic_self]
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// CHECK:STDOUT: %.Self.as_wit.iface0: <witness> = facet_access_witness %.Self, element0 [symbolic_self]
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// CHECK:STDOUT: %J.facet: %J.type = facet_value %.Self.as_type, (%.Self.as_wit.iface0) [symbolic_self]
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// CHECK:STDOUT: %impl.elem0: type = impl_witness_access %.Self.as_wit.iface0, element0 [symbolic_self]
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// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
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// CHECK:STDOUT: %J_where.type: type = facet_type <@J where .Self impls @Incomplete and %impl.elem0 = %empty_tuple.type> [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
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// CHECK:STDOUT: .C = %C.decl
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// CHECK:STDOUT: .J = %J.decl
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// CHECK:STDOUT: .Incomplete = %Incomplete.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
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// CHECK:STDOUT: %J.decl: type = interface_decl @J [concrete = constants.%J.type] {} {}
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// CHECK:STDOUT: %Incomplete.decl: type = interface_decl @Incomplete [concrete = constants.%Incomplete.type] {} {}
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// CHECK:STDOUT: impl_decl @impl [concrete] {} {
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// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
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// CHECK:STDOUT: %J.ref: type = name_ref J, file.%J.decl [concrete = constants.%J.type]
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// CHECK:STDOUT: %.Self: %J.type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %.Self.ref.loc15_19: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %Incomplete.ref: type = name_ref Incomplete, file.%Incomplete.decl [concrete = constants.%Incomplete.type]
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// CHECK:STDOUT: %.Self.as_type.loc15_19: type = facet_access_type %.Self.ref.loc15_19 [symbolic_self = constants.%.Self.as_type]
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// CHECK:STDOUT: %.loc15_19: type = converted %.Self.ref.loc15_19, %.Self.as_type.loc15_19 [symbolic_self = constants.%.Self.as_type]
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// CHECK:STDOUT: %.Self.ref.loc15_46: %J.type = name_ref .Self, %.Self [symbolic_self = constants.%.Self]
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// CHECK:STDOUT: %T.ref: %J.assoc_type = name_ref T, @T.%assoc0 [concrete = constants.%assoc0]
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// CHECK:STDOUT: %.Self.as_type.loc15_46: type = facet_access_type %.Self.ref.loc15_46 [symbolic_self = constants.%.Self.as_type]
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// CHECK:STDOUT: %.loc15_46: type = converted %.Self.ref.loc15_46, %.Self.as_type.loc15_46 [symbolic_self = constants.%.Self.as_type]
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// CHECK:STDOUT: %.Self.as_wit.iface0: <witness> = facet_access_witness %.Self.ref.loc15_46, element0 [symbolic_self = constants.%.Self.as_wit.iface0]
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// CHECK:STDOUT: %impl.elem0: type = impl_witness_access %.Self.as_wit.iface0, element0 [symbolic_self = constants.%impl.elem0]
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// CHECK:STDOUT: %.loc15_52.1: %empty_tuple.type = tuple_literal ()
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// CHECK:STDOUT: %.loc15_52.2: type = converted %.loc15_52.1, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
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// CHECK:STDOUT: %.loc15_13: type = where_expr %.Self [concrete = constants.%J_where.type] {
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// CHECK:STDOUT: requirement_impls %.loc15_19, %Incomplete.ref
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// CHECK:STDOUT: requirement_rewrite %impl.elem0, %.loc15_52.2
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: interface @J {
|
||||
// CHECK:STDOUT: %Self: %J.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
|
||||
// CHECK:STDOUT: %T: type = assoc_const_decl @T [concrete] {
|
||||
// CHECK:STDOUT: %assoc0: %J.assoc_type = assoc_entity element0, @J.%T [concrete = constants.%assoc0]
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: !members:
|
||||
// CHECK:STDOUT: .Self = %Self
|
||||
// CHECK:STDOUT: .T = @T.%assoc0
|
||||
// CHECK:STDOUT: witness = (%T)
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: interface @Incomplete;
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: generic assoc_const @T(@J.%Self: %J.type) {
|
||||
// CHECK:STDOUT: assoc_const T:! type;
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: impl @impl: %C.ref as %.loc15_13;
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: class @C {
|
||||
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete = constants.%complete_type]
|
||||
// CHECK:STDOUT: complete_type_witness = %complete_type
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: !members:
|
||||
// CHECK:STDOUT: .Self = constants.%C
|
||||
// CHECK:STDOUT: }
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: specific @T(constants.%Self) {}
|
||||
// CHECK:STDOUT:
|
||||
// CHECK:STDOUT: specific @T(constants.%J.facet) {}
|
||||
// CHECK:STDOUT:
|
||||
|
||||
Reference in New Issue
Block a user