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carbon-lang/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
T
Richard SmithandDana Jansens 19182f08aa Compute a fingerprint for constants and import_ref instructions. (#4763) 
Use it in the instruction namer to make instruction names more stable
across unrelated changes to the toolchain or the prelude.

---------

Co-authored-by: Dana Jansens <danakj@orodu.net>
2025-01-07 20:41:44 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
interface I {
fn F();
}
class C {
// This doesn't match `impl C as I` below under proposal #3763.
// CHECK:STDERR: fail_todo_undefined_impl.carbon:[[@LINE+4]]:3: error: impl declared but not defined [MissingImplDefinition]
// CHECK:STDERR: extend impl as I;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR:
extend impl as I;
}
fn F() -> i32 {
// CHECK:STDERR: fail_todo_undefined_impl.carbon:[[@LINE+3]]:10: error: accessing member from impl before the end of its definition [ImplAccessMemberBeforeComplete]
// CHECK:STDERR: return C.F();
// CHECK:STDERR: ^~~
return C.F();
}
// TODO: This should be written `impl C.(Self as I)` or `impl C.(as I)`, once
// that is supported.
impl C as I {
fn F() {}
}
// CHECK:STDOUT: --- fail_todo_undefined_impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %I.type: type = facet_type <@I> [template]
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %F.type.9df: type = fn_type @F.1 [template]
// CHECK:STDOUT: %F.478: %F.type.9df = struct_value () [template]
// CHECK:STDOUT: %F.assoc_type: type = assoc_entity_type %I.type, %F.type.9df [template]
// CHECK:STDOUT: %assoc0: %F.assoc_type = assoc_entity element0, @I.%F.decl [template]
// CHECK:STDOUT: %C: type = class_type @C [template]
// CHECK:STDOUT: %impl_witness.85b: <witness> = impl_witness (<error>) [template]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [template]
// CHECK:STDOUT: %complete_type.357: <witness> = complete_type_witness %empty_struct_type [template]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [template]
// CHECK:STDOUT: %F.type.b25: type = fn_type @F.2 [template]
// CHECK:STDOUT: %F.c41: %F.type.b25 = struct_value () [template]
// CHECK:STDOUT: %impl_witness.433: <witness> = impl_witness (@impl.2.%F.decl) [template]
// CHECK:STDOUT: %F.type.663: type = fn_type @F.3 [template]
// CHECK:STDOUT: %F.0c9: %F.type.663 = struct_value () [template]
// CHECK:STDOUT: %I.facet: %I.type = facet_value %C, %impl_witness.433 [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int = %import_ref.187
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .I = %I.decl
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %I.decl: type = interface_decl @I [template = constants.%I.type] {} {}
// CHECK:STDOUT: %C.decl: type = class_decl @C [template = constants.%C] {} {}
// CHECK:STDOUT: %F.decl: %F.type.b25 = fn_decl @F.2 [template = constants.%F.c41] {
// CHECK:STDOUT: %return.patt: %i32 = return_slot_pattern
// CHECK:STDOUT: %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
// CHECK:STDOUT: %return.param: ref %i32 = out_param runtime_param0
// CHECK:STDOUT: %return: ref %i32 = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: impl_decl @impl.2 [template] {} {
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [template = constants.%C]
// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [template = constants.%I.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %impl_witness: <witness> = impl_witness (@impl.2.%F.decl) [template = constants.%impl_witness.433]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @I {
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT: %F.decl: %F.type.9df = fn_decl @F.1 [template = constants.%F.478] {} {}
// CHECK:STDOUT: %assoc0: %F.assoc_type = assoc_entity element0, %F.decl [template = constants.%assoc0]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .F = %assoc0
// CHECK:STDOUT: witness = (%F.decl)
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl.1: %Self.ref as %I.ref;
// CHECK:STDOUT:
// CHECK:STDOUT: impl @impl.2: %C.ref as %I.ref {
// CHECK:STDOUT: %F.decl: %F.type.663 = fn_decl @F.3 [template = constants.%F.0c9] {} {}
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: witness = file.%impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: impl_decl @impl.1 [template] {} {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%C [template = constants.%C]
// CHECK:STDOUT: %I.ref: type = name_ref I, file.%I.decl [template = constants.%I.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %impl_witness: <witness> = impl_witness (<error>) [template = constants.%impl_witness.85b]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type.357]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C
// CHECK:STDOUT: extend @impl.1.%I.ref
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @F.1(@I.%Self: %I.type) {
// CHECK:STDOUT:
// CHECK:STDOUT: fn();
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.2() -> %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %C.ref: type = name_ref C, file.%C.decl [template = constants.%C]
// CHECK:STDOUT: %F.ref: %F.assoc_type = name_ref F, @I.%assoc0 [template = constants.%assoc0]
// CHECK:STDOUT: %impl.elem0: %F.type.9df = impl_witness_access constants.%impl_witness.85b, element0 [template = <error>]
// CHECK:STDOUT: return <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.3() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F.1(constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @F.1(constants.%I.facet) {}
// CHECK:STDOUT:
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