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carbon-lang/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
T
Jon Ross-Perkins d944347e7b Elide prelude components in the IR formatter. (#4453) 
This is in particular to avoid churn from changes such as #4370. I think
the import list can be helpful (particularly to understand what the
library is aware of), but it's a different trade-off for the prelude
package due to the implicit imports.
2024-10-30 22:45:26 +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 {
extend impl as I;
}
fn F() -> i32 {
// TODO: This should produce a more useful error message.
// CHECK:STDERR: fail_todo_undefined_impl.carbon:[[@LINE+3]]:10: error: cannot access member of interface `I` in type `C` that does not implement that interface [MissingImplInMemberAccess]
// CHECK:STDERR: return C.F();
// CHECK:STDERR: ^~~
return C.F();
}
impl C as I {
fn F() {}
}
// CHECK:STDOUT: --- fail_todo_undefined_impl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %I.type: type = interface_type @I [template]
// CHECK:STDOUT: %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %F.type.1: type = fn_type @F.1 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %F.1: %F.type.1 = struct_value () [template]
// CHECK:STDOUT: %.2: type = assoc_entity_type %I.type, %F.type.1 [template]
// CHECK:STDOUT: %.3: %.2 = assoc_entity element0, @I.%F.decl [template]
// CHECK:STDOUT: %C: type = class_type @C [template]
// CHECK:STDOUT: %.4: type = struct_type {} [template]
// CHECK:STDOUT: %.5: <witness> = complete_type_witness %.4 [template]
// CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
// CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
// CHECK:STDOUT: %F.type.2: type = fn_type @F.2 [template]
// CHECK:STDOUT: %F.2: %F.type.2 = struct_value () [template]
// CHECK:STDOUT: %.6: type = ptr_type %.4 [template]
// CHECK:STDOUT: %F.type.3: type = fn_type @F.3 [template]
// CHECK:STDOUT: %F.3: %F.type.3 = struct_value () [template]
// CHECK:STDOUT: %.7: <witness> = interface_witness (%F.3) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int32 = %import_ref
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %import_ref: %Int32.type = import_ref Core//prelude/types, inst+15, loaded [template = constants.%Int32]
// 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.2 = fn_decl @F.2 [template = constants.%F.2] {
// 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.make_type_32: init type = call constants.%Int32() [template = i32]
// CHECK:STDOUT: %.loc19_11.1: type = value_of_initializer %int.make_type_32 [template = i32]
// CHECK:STDOUT: %.loc19_11.2: type = converted %int.make_type_32, %.loc19_11.1 [template = 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: }
// 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.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
// CHECK:STDOUT: %.loc12: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: .F = %.loc12
// 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.3 = fn_decl @F.3 [template = constants.%F.3] {} {}
// CHECK:STDOUT: %.loc27: <witness> = interface_witness (%F.decl) [template = constants.%.7]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: witness = %.loc27
// 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: %.loc17: <witness> = complete_type_witness %.4 [template = constants.%.5]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C
// CHECK:STDOUT: extend name_scope2
// 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 @Int32() -> type = "int.make_type_32";
// 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: %.2 = name_ref F, @I.%.loc12 [template = constants.%.3]
// 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.%C) {}
// CHECK:STDOUT:
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