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carbon-lang/toolchain/check/testdata/class/fail_self.carbon
T
Richard Smith 797b14eb8e Import ImplWitnessTable into the imports block instead of the constants block. (#5374) 
Don't import `ImplWitnessTable` into the `constants` block, because we
generally don't put `Unique` constants there. This matches the handling
of the other kinds of `Unique` constants. In order to keep the
instruction visible in formatted SemIR, add it to the `imports` block
instead.

Also fix a bug in the instruction formatter that resulted in
instructions in the `imports` block being omitted from the output if
they were only referenced by earlier instructions in the `imports` block
and by instructions in the `constants` block. This was already resulting
in some referenced instructions being omitted from the output, but also
occurred frequently for `impl_witness_table` instructions after this
change because it is common for the only reference to those instructions
to be from `impl_witness` instructions in the `constants` block.
2025-05-01 00:08:43 +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/class/fail_self.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_self.carbon
class Class {
// CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:8: error: `self` can only be declared in an implicit parameter list [SelfOutsideImplicitParamList]
// CHECK:STDERR: fn F(self: Self);
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR:
fn F(self: Self);
fn G() -> Self;
}
// CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:12: error: `self` can only be declared in an implicit parameter list [SelfOutsideImplicitParamList]
// CHECK:STDERR: fn Class.F(self: Self) {
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR:
fn Class.F(self: Self) {
}
fn Class.G() -> Self {
// CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:7: error: `self` can only be declared in an implicit parameter list [SelfOutsideImplicitParamList]
// CHECK:STDERR: var self: Self;
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR:
var self: Self;
// CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:10: error: cannot copy value of type `Class` [CopyOfUncopyableType]
// CHECK:STDERR: return self;
// CHECK:STDERR: ^~~~
// CHECK:STDERR:
return self;
}
class WrongSelf {
fn F[self: Class]();
}
fn CallWrongSelf(ws: WrongSelf) {
// CHECK:STDERR: fail_self.carbon:[[@LINE+10]]:3: error: cannot implicitly convert expression of type `WrongSelf` to `Class` [ConversionFailure]
// CHECK:STDERR: ws.F();
// CHECK:STDERR: ^~
// CHECK:STDERR: fail_self.carbon:[[@LINE+7]]:3: note: type `WrongSelf` does not implement interface `Core.ImplicitAs(Class)` [MissingImplInMemberAccessNote]
// CHECK:STDERR: ws.F();
// CHECK:STDERR: ^~
// CHECK:STDERR: fail_self.carbon:[[@LINE-10]]:8: note: initializing function parameter [InCallToFunctionParam]
// CHECK:STDERR: fn F[self: Class]();
// CHECK:STDERR: ^~~~~~~~~~~
// CHECK:STDERR:
ws.F();
}
// CHECK:STDOUT: --- fail_self.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Class: type = class_type @Class [concrete]
// CHECK:STDOUT: %pattern_type.761: type = pattern_type %Class [concrete]
// CHECK:STDOUT: %F.type.f1b: type = fn_type @F.1 [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %F.1f2: %F.type.f1b = struct_value () [concrete]
// CHECK:STDOUT: %G.type: type = fn_type @G [concrete]
// CHECK:STDOUT: %G: %G.type = struct_value () [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %WrongSelf: type = class_type @WrongSelf [concrete]
// CHECK:STDOUT: %F.type.25f: type = fn_type @F.2 [concrete]
// CHECK:STDOUT: %F.3a3: %F.type.25f = struct_value () [concrete]
// CHECK:STDOUT: %pattern_type.381: type = pattern_type %WrongSelf [concrete]
// CHECK:STDOUT: %CallWrongSelf.type: type = fn_type @CallWrongSelf [concrete]
// CHECK:STDOUT: %CallWrongSelf: %CallWrongSelf.type = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
// CHECK:STDOUT: %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Class = %Class.decl
// CHECK:STDOUT: .WrongSelf = %WrongSelf.decl
// CHECK:STDOUT: .CallWrongSelf = %CallWrongSelf.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Class.decl: type = class_decl @Class [concrete = constants.%Class] {} {}
// CHECK:STDOUT: %F.decl: %F.type.f1b = fn_decl @F.1 [concrete = constants.%F.1f2] {
// CHECK:STDOUT: %self.patt: %pattern_type.761 = binding_pattern self [concrete]
// CHECK:STDOUT: %self.param_patt: %pattern_type.761 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param.loc25: %Class = value_param call_param0
// CHECK:STDOUT: %Self.ref.loc25: type = name_ref Self, constants.%Class [concrete = constants.%Class]
// CHECK:STDOUT: %self.loc25: %Class = bind_name self, %self.param.loc25
// CHECK:STDOUT: }
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %return.patt: %pattern_type.761 = return_slot_pattern [concrete]
// CHECK:STDOUT: %return.param_patt: %pattern_type.761 = out_param_pattern %return.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref.loc28: type = name_ref Self, constants.%Class [concrete = constants.%Class]
// CHECK:STDOUT: %return.param.loc28: ref %Class = out_param call_param0
// CHECK:STDOUT: %return.loc28: ref %Class = return_slot %return.param.loc28
// CHECK:STDOUT: }
// CHECK:STDOUT: %WrongSelf.decl: type = class_decl @WrongSelf [concrete = constants.%WrongSelf] {} {}
// CHECK:STDOUT: %CallWrongSelf.decl: %CallWrongSelf.type = fn_decl @CallWrongSelf [concrete = constants.%CallWrongSelf] {
// CHECK:STDOUT: %ws.patt: %pattern_type.381 = binding_pattern ws [concrete]
// CHECK:STDOUT: %ws.param_patt: %pattern_type.381 = value_param_pattern %ws.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %ws.param: %WrongSelf = value_param call_param0
// CHECK:STDOUT: %WrongSelf.ref: type = name_ref WrongSelf, file.%WrongSelf.decl [concrete = constants.%WrongSelf]
// CHECK:STDOUT: %ws: %WrongSelf = bind_name ws, %ws.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Class {
// CHECK:STDOUT: %F.decl: %F.type.f1b = fn_decl @F.1 [concrete = constants.%F.1f2] {
// CHECK:STDOUT: %self.patt: %pattern_type.761 = binding_pattern self [concrete]
// CHECK:STDOUT: %self.param_patt: %pattern_type.761 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param.loc16: %Class = value_param call_param0
// CHECK:STDOUT: %Self.ref.loc16: type = name_ref Self, constants.%Class [concrete = constants.%Class]
// CHECK:STDOUT: %self.loc16: %Class = bind_name self, %self.param.loc16
// CHECK:STDOUT: }
// CHECK:STDOUT: %G.decl: %G.type = fn_decl @G [concrete = constants.%G] {
// CHECK:STDOUT: %return.patt: %pattern_type.761 = return_slot_pattern [concrete]
// CHECK:STDOUT: %return.param_patt: %pattern_type.761 = out_param_pattern %return.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref.loc18: type = name_ref Self, constants.%Class [concrete = constants.%Class]
// CHECK:STDOUT: %return.param.loc18: ref %Class = out_param call_param0
// CHECK:STDOUT: %return.loc18: ref %Class = return_slot %return.param.loc18
// CHECK:STDOUT: }
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// 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.%Class
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: .G = %G.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @WrongSelf {
// CHECK:STDOUT: %F.decl: %F.type.25f = fn_decl @F.2 [concrete = constants.%F.3a3] {
// CHECK:STDOUT: %self.patt: %pattern_type.761 = binding_pattern self [concrete]
// CHECK:STDOUT: %self.param_patt: %pattern_type.761 = value_param_pattern %self.patt, call_param0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %Class = value_param call_param0
// CHECK:STDOUT: %Class.ref: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
// CHECK:STDOUT: %self: %Class = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete = constants.%empty_struct_type]
// 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.%WrongSelf
// CHECK:STDOUT: .Class = <poisoned>
// CHECK:STDOUT: .F = %F.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.1(%self.param.loc25: %Class) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() -> %return.param.loc28: %Class {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %self.patt: %pattern_type.761 = binding_pattern self [concrete]
// CHECK:STDOUT: %.loc33: %pattern_type.761 = var_pattern %self.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %self.var: ref %Class = var self
// CHECK:STDOUT: %Self.ref.loc33: type = name_ref Self, constants.%Class [concrete = constants.%Class]
// CHECK:STDOUT: %self: ref %Class = bind_name self, %self.var
// CHECK:STDOUT: %self.ref: ref %Class = name_ref self, %self
// CHECK:STDOUT: %.loc38: %Class = bind_value %self.ref
// CHECK:STDOUT: return <error> to %return.loc28
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F.2(%self.param: %Class);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @CallWrongSelf(%ws.param: %WrongSelf) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %ws.ref: %WrongSelf = name_ref ws, %ws
// CHECK:STDOUT: %F.ref: %F.type.25f = name_ref F, @WrongSelf.%F.decl [concrete = constants.%F.3a3]
// CHECK:STDOUT: %F.bound: <bound method> = bound_method %ws.ref, %F.ref
// CHECK:STDOUT: %.loc56: %Class = converted %ws.ref, <error> [concrete = <error>]
// CHECK:STDOUT: %F.call: init %empty_tuple.type = call %F.bound(<error>)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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