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carbon-lang/toolchain/check/testdata/class/fail_method_modifiers.carbon
T
Richard SmithandJon Ross-Perkins 187a3608df Use As and ImplicitAs interfaces for conversions. (#4209) 
Add these interfaces to the core library. For now, they're two separate
interfaces because we don't yet support one interface extending another.

This collapses a lot of the layering in check: for example, the call
building logic depends on implicit conversions, conversions now depend
on the overloaded operator machinery, and that machinery depends on
building calls.

In passing, improve the diagnostics for failing to find a name required
from the prelude. Also convert all the transitively-called code from
`NodeId` to `LocId` given the latter is what the conversion machinery
has available.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2024-09-05 23:39:58 +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_method_modifiers.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_method_modifiers.carbon
class FinalClass {
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE+7]]:3: ERROR: `abstract` not allowed on `fn` declaration in a non-abstract `class` definition.
// CHECK:STDERR: abstract fn Abstract[self: Self]();
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE-5]]:1: Containing definition here.
// CHECK:STDERR: class FinalClass {
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
abstract fn Abstract[self: Self]();
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE+7]]:3: ERROR: `virtual` not allowed on `fn` declaration in a non-abstract non-base `class` definition.
// CHECK:STDERR: virtual fn Virtual[self: Self]();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE-14]]:1: Containing definition here.
// CHECK:STDERR: class FinalClass {
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
virtual fn Virtual[self: Self]();
}
abstract class AbstractClass {
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE+4]]:3: ERROR: `default` not allowed on `fn` declaration outside of an interface.
// CHECK:STDERR: default fn Default[self: Self]();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
default fn Default[self: Self]();
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE+4]]:3: ERROR: `final` not allowed on `fn` declaration outside of an interface.
// CHECK:STDERR: final fn Final[self: Self]();
// CHECK:STDERR: ^~~~~
// CHECK:STDERR:
final fn Final[self: Self]();
}
base class BaseClass {
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE+6]]:3: ERROR: `abstract` not allowed on `fn` declaration in a non-abstract `class` definition.
// CHECK:STDERR: abstract fn Abstract[self: Self]();
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE-5]]:1: Containing definition here.
// CHECK:STDERR: base class BaseClass {
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~
abstract fn Abstract[self: Self]();
}
// CHECK:STDOUT: --- fail_method_modifiers.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %FinalClass: type = class_type @FinalClass [template]
// CHECK:STDOUT: %Abstract.type.1: type = fn_type @Abstract.1 [template]
// CHECK:STDOUT: %.1: type = tuple_type () [template]
// CHECK:STDOUT: %Abstract.1: %Abstract.type.1 = struct_value () [template]
// CHECK:STDOUT: %Virtual.type: type = fn_type @Virtual [template]
// CHECK:STDOUT: %Virtual: %Virtual.type = struct_value () [template]
// CHECK:STDOUT: %.2: type = struct_type {} [template]
// CHECK:STDOUT: %AbstractClass: type = class_type @AbstractClass [template]
// CHECK:STDOUT: %Default.type: type = fn_type @Default [template]
// CHECK:STDOUT: %Default: %Default.type = struct_value () [template]
// CHECK:STDOUT: %Final.type: type = fn_type @Final [template]
// CHECK:STDOUT: %Final: %Final.type = struct_value () [template]
// CHECK:STDOUT: %BaseClass: type = class_type @BaseClass [template]
// CHECK:STDOUT: %Abstract.type.2: type = fn_type @Abstract.2 [template]
// CHECK:STDOUT: %Abstract.2: %Abstract.type.2 = struct_value () [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/operators
// CHECK:STDOUT: import Core//prelude/types
// CHECK:STDOUT: import Core//prelude/operators/arithmetic
// CHECK:STDOUT: import Core//prelude/operators/as
// CHECK:STDOUT: import Core//prelude/operators/bitwise
// CHECK:STDOUT: import Core//prelude/operators/comparison
// CHECK:STDOUT: import Core//prelude/types/bool
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .FinalClass = %FinalClass.decl
// CHECK:STDOUT: .AbstractClass = %AbstractClass.decl
// CHECK:STDOUT: .BaseClass = %BaseClass.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %FinalClass.decl: type = class_decl @FinalClass [template = constants.%FinalClass] {}
// CHECK:STDOUT: %AbstractClass.decl: type = class_decl @AbstractClass [template = constants.%AbstractClass] {}
// CHECK:STDOUT: %BaseClass.decl: type = class_decl @BaseClass [template = constants.%BaseClass] {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @FinalClass {
// CHECK:STDOUT: %Abstract.decl: %Abstract.type.1 = fn_decl @Abstract.1 [template = constants.%Abstract.1] {
// CHECK:STDOUT: %Self.ref.loc20: type = name_ref Self, constants.%FinalClass [template = constants.%FinalClass]
// CHECK:STDOUT: %self.loc20_24.1: %FinalClass = param self
// CHECK:STDOUT: %self.loc20_24.2: %FinalClass = bind_name self, %self.loc20_24.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %Virtual.decl: %Virtual.type = fn_decl @Virtual [template = constants.%Virtual] {
// CHECK:STDOUT: %Self.ref.loc29: type = name_ref Self, constants.%FinalClass [template = constants.%FinalClass]
// CHECK:STDOUT: %self.loc29_22.1: %FinalClass = param self
// CHECK:STDOUT: %self.loc29_22.2: %FinalClass = bind_name self, %self.loc29_22.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%FinalClass
// CHECK:STDOUT: .Abstract = %Abstract.decl
// CHECK:STDOUT: .Virtual = %Virtual.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @AbstractClass {
// CHECK:STDOUT: %Default.decl: %Default.type = fn_decl @Default [template = constants.%Default] {
// CHECK:STDOUT: %Self.ref.loc38: type = name_ref Self, constants.%AbstractClass [template = constants.%AbstractClass]
// CHECK:STDOUT: %self.loc38_22.1: %AbstractClass = param self
// CHECK:STDOUT: %self.loc38_22.2: %AbstractClass = bind_name self, %self.loc38_22.1
// CHECK:STDOUT: }
// CHECK:STDOUT: %Final.decl: %Final.type = fn_decl @Final [template = constants.%Final] {
// CHECK:STDOUT: %Self.ref.loc44: type = name_ref Self, constants.%AbstractClass [template = constants.%AbstractClass]
// CHECK:STDOUT: %self.loc44_18.1: %AbstractClass = param self
// CHECK:STDOUT: %self.loc44_18.2: %AbstractClass = bind_name self, %self.loc44_18.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%AbstractClass
// CHECK:STDOUT: .Default = %Default.decl
// CHECK:STDOUT: .Final = %Final.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @BaseClass {
// CHECK:STDOUT: %Abstract.decl: %Abstract.type.2 = fn_decl @Abstract.2 [template = constants.%Abstract.2] {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%BaseClass [template = constants.%BaseClass]
// CHECK:STDOUT: %self.loc55_24.1: %BaseClass = param self
// CHECK:STDOUT: %self.loc55_24.2: %BaseClass = bind_name self, %self.loc55_24.1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%BaseClass
// CHECK:STDOUT: .Abstract = %Abstract.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Abstract.1[@FinalClass.%self.loc20_24.2: %FinalClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Virtual[@FinalClass.%self.loc29_22.2: %FinalClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Default[@AbstractClass.%self.loc38_22.2: %AbstractClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Final[@AbstractClass.%self.loc44_18.2: %AbstractClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Abstract.2[@BaseClass.%self.loc55_24.2: %BaseClass]();
// CHECK:STDOUT:
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