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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
e8cc089b2b
Per #3714, some of the details here are not yet settled. In particular, we might want `Self` to come into scope at the start of the definition, not at the `as` keyword. However, this change allows us to accept the uncontroversial examples.
85 lines
3.5 KiB
Plaintext
85 lines
3.5 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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interface DefaultConstructible {
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fn Make() -> Self;
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}
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class A {
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impl i32 as DefaultConstructible {
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// `Self` here refers to `i32`, not `A`.
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// TODO: Revisit this once #3714 is resolved.
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fn Make() -> Self { return 0; }
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}
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}
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// CHECK:STDOUT: --- self_in_class.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %.1: type = interface_type @DefaultConstructible [template]
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// CHECK:STDOUT: %.2: type = assoc_entity_type @DefaultConstructible, <function> [template]
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// CHECK:STDOUT: %.3: <associated <function> in DefaultConstructible> = assoc_entity element0, @DefaultConstructible.%Make [template]
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// CHECK:STDOUT: %A: type = class_type @A [template]
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// CHECK:STDOUT: %.4: i32 = int_literal 0 [template]
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// CHECK:STDOUT: %.5: <witness> = interface_witness (@impl.%Make) [template]
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// CHECK:STDOUT: %.6: type = struct_type {} [template]
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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 [template] {
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// CHECK:STDOUT: .DefaultConstructible = %DefaultConstructible.decl
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// CHECK:STDOUT: .A = %A.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %DefaultConstructible.decl: type = interface_decl @DefaultConstructible [template = constants.%.1] {}
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// CHECK:STDOUT: %A.decl: type = class_decl @A [template = constants.%A] {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @DefaultConstructible {
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// CHECK:STDOUT: %Self: DefaultConstructible = bind_symbolic_name Self [symbolic]
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// CHECK:STDOUT: %Make: <function> = fn_decl @Make.1 [template] {
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// CHECK:STDOUT: %Self.ref: DefaultConstructible = name_ref Self, %Self [symbolic = %Self]
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// CHECK:STDOUT: %.loc8_16.1: type = facet_type_access %Self.ref [symbolic = %Self]
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// CHECK:STDOUT: %.loc8_16.2: type = converted %Self.ref, %.loc8_16.1 [symbolic = %Self]
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// CHECK:STDOUT: %return.var: ref Self = var <return slot>
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %.loc8_20: <associated <function> in DefaultConstructible> = assoc_entity element0, %Make [template = constants.%.3]
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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: .Make = %.loc8_20
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// CHECK:STDOUT: witness = (%Make)
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: impl @impl: i32 as DefaultConstructible {
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// CHECK:STDOUT: %Make: <function> = fn_decl @Make.2 [template] {
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// CHECK:STDOUT: %Self.ref: type = name_ref Self, i32 [template = i32]
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// CHECK:STDOUT: %return.var: ref i32 = var <return slot>
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %.1: <witness> = interface_witness (%Make) [template = constants.%.5]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Make = %Make
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// CHECK:STDOUT: witness = %.1
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: class @A {
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// CHECK:STDOUT: impl_decl @impl {
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// CHECK:STDOUT: %DefaultConstructible.ref: type = name_ref DefaultConstructible, file.%DefaultConstructible.decl [template = constants.%.1]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = constants.%A
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @Make.1() -> Self;
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @Make.2() -> i32 {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %.loc15: i32 = int_literal 0 [template = constants.%.4]
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// CHECK:STDOUT: return %.loc15
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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