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carbon-lang/toolchain/check/testdata/class/fail_method_modifiers.carbon
T
Geoff RomerandJon Ross-Perkins dc32aa2690 Initial support for binding patterns in SemIR (#4221) 
Introduces the `BindingPattern` and `SymbolicBindingPattern` insts, and
a separate stack of pattern blocks that they are emitted into. The
intent is to generate the corresponding pattern-matching insts (like
`BindName`) from them in a separate pass, but that is deferred to future
PRs.

See
[here](https://docs.google.com/document/d/1U_vQH17V893J9aF1LJXUnFYBNSs2MjKl4bJPaWCB2zo/edit?usp=sharing&resourcekey=0-w0xGYZ0An31Kpz-wvzSXwQ)
for the design this is based on, but note that during review we have
chosen to deviate from that design by putting the patterns in separate
blocks, and omitting the "forward references" from a `BindingPattern` to
its corresponding `BindName`. This in turn necessitates having separate
inst kinds for symbolic and non-symbolic binding patterns.

---------

Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
2024-09-25 19:12:58 +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: note: 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: note: 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: note: 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: %.3: <witness> = complete_type_witness %.2 [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.patt: %FinalClass = binding_pattern self
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%FinalClass [template = constants.%FinalClass]
// CHECK:STDOUT: %self.param: %FinalClass = param self, runtime_param0
// CHECK:STDOUT: %self: %FinalClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Virtual.decl: %Virtual.type = fn_decl @Virtual [template = constants.%Virtual] {
// CHECK:STDOUT: %self.patt: %FinalClass = binding_pattern self
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%FinalClass [template = constants.%FinalClass]
// CHECK:STDOUT: %self.param: %FinalClass = param self, runtime_param0
// CHECK:STDOUT: %self: %FinalClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc30: <witness> = complete_type_witness %.2 [template = constants.%.3]
// 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.patt: %AbstractClass = binding_pattern self
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%AbstractClass [template = constants.%AbstractClass]
// CHECK:STDOUT: %self.param: %AbstractClass = param self, runtime_param0
// CHECK:STDOUT: %self: %AbstractClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %Final.decl: %Final.type = fn_decl @Final [template = constants.%Final] {
// CHECK:STDOUT: %self.patt: %AbstractClass = binding_pattern self
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%AbstractClass [template = constants.%AbstractClass]
// CHECK:STDOUT: %self.param: %AbstractClass = param self, runtime_param0
// CHECK:STDOUT: %self: %AbstractClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc45: <witness> = complete_type_witness %.2 [template = constants.%.3]
// 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.patt: %BaseClass = binding_pattern self
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%BaseClass [template = constants.%BaseClass]
// CHECK:STDOUT: %self.param: %BaseClass = param self, runtime_param0
// CHECK:STDOUT: %self: %BaseClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc56: <witness> = complete_type_witness %.2 [template = constants.%.3]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%BaseClass
// CHECK:STDOUT: .Abstract = %Abstract.decl
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Abstract.1[%self: %FinalClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Virtual[%self: %FinalClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Default[%self: %AbstractClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Final[%self: %AbstractClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Abstract.2[%self: %BaseClass]();
// CHECK:STDOUT:
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