carbon-language/carbon-lang
1
0
Fork 0
mirror of https://github.com/carbon-language/carbon-lang.git synced 2026-10-02 22:02:51 +01:00
Code Issues Packages Projects Releases 10 Wiki Activity
Files
28d6aedbbb61e9c07ea32fc69730a7c6db567fed
carbon-lang/toolchain/check/testdata/class/fail_method_modifiers.carbon
T
Richard Smith b1230218d5 Make fingerprinting stable across compatible source changes. (#4789) 
Include the index rather than the name in the fingerprint of a symbolic
binding. While both the index and the name contribute to the canonical
identity, using either one of them in the fingerprint is sufficient to
ensure that distinct entities get different fingerprints. Changing the
name of a symbolic binding should ideally not result in fingerprint
changes, so exclude the name from the fingerprint when we have an index.

Use the canonical type and constraint when fingerprinting an impl, so
that uses of names in `name_ref` instructions aren't considered, only
the entity the name resolves to, and different ways of spelling the same
type have the same fingerprint. This similarly allows compatible changes
to be made to impls without changing the fingerprint.

Exclude the declaration block when determining the fingerprint of a
declaration. The declaration block contains the declarations of
parameters of the declaration, which do affect whether two declarations
are identical, but not whether they denote the same entity, because it
would be invalid to have different declaration blocks for declarations
with the same name in the same scope. Therefore changes to the
declaration block are compatible, and it's useful for such changes to
not affect the fingerprint.

This is not easy to test in isolation with our current testing
machinery. However, a follow-on PR will change the name of a parameter
in the prelude, and with this in place, will not cause any changes to
occur elsewhere in the toolchain tests.
2025-01-10 22:30:22 +00:00

177 lines
9.3 KiB
Plaintext
Raw Blame History

// 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; requires `abstract` class scope [ModifierAbstractNotAllowed]
// CHECK:STDERR: abstract fn Abstract[self: Self]();
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE-5]]:1: note: containing definition here [ModifierNotInContext]
// 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; requires `abstract` or `base` class scope [ModifierVirtualNotAllowed]
// CHECK:STDERR: virtual fn Virtual[self: Self]();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE-14]]:1: note: containing definition here [ModifierNotInContext]
// 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; requires interface scope [ModifierRequiresInterface]
// 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; requires interface scope [ModifierRequiresInterface]
// 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; requires `abstract` class scope [ModifierAbstractNotAllowed]
// CHECK:STDERR: abstract fn Abstract[self: Self]();
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR: fail_method_modifiers.carbon:[[@LINE-5]]:1: note: containing definition here [ModifierNotInContext]
// 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.c3e: type = fn_type @Abstract.1 [template]
// CHECK:STDOUT: %Abstract.d21: %Abstract.type.c3e = struct_value () [template]
// CHECK:STDOUT: %Virtual.type: type = fn_type @Virtual [template]
// CHECK:STDOUT: %Virtual: %Virtual.type = struct_value () [template]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [template]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_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.de1: type = fn_type @Abstract.2 [template]
// CHECK:STDOUT: %Abstract.af0: %Abstract.type.de1 = 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/...
// 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.c3e = fn_decl @Abstract.1 [template = constants.%Abstract.d21] {
// CHECK:STDOUT: %self.patt: %FinalClass = binding_pattern self
// CHECK:STDOUT: %self.param_patt: %FinalClass = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %FinalClass = value_param runtime_param0
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%FinalClass [template = constants.%FinalClass]
// 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: %self.param_patt: %FinalClass = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %FinalClass = value_param runtime_param0
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%FinalClass [template = constants.%FinalClass]
// CHECK:STDOUT: %self: %FinalClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%FinalClass
// CHECK:STDOUT: .Abstract = %Abstract.decl
// CHECK:STDOUT: .Virtual = %Virtual.decl
// CHECK:STDOUT: complete_type_witness = %complete_type
// 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: %self.param_patt: %AbstractClass = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %AbstractClass = value_param runtime_param0
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%AbstractClass [template = constants.%AbstractClass]
// 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: %self.param_patt: %AbstractClass = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %AbstractClass = value_param runtime_param0
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%AbstractClass [template = constants.%AbstractClass]
// CHECK:STDOUT: %self: %AbstractClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%AbstractClass
// CHECK:STDOUT: .Default = %Default.decl
// CHECK:STDOUT: .Final = %Final.decl
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @BaseClass {
// CHECK:STDOUT: %Abstract.decl: %Abstract.type.de1 = fn_decl @Abstract.2 [template = constants.%Abstract.af0] {
// CHECK:STDOUT: %self.patt: %BaseClass = binding_pattern self
// CHECK:STDOUT: %self.param_patt: %BaseClass = value_param_pattern %self.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %self.param: %BaseClass = value_param runtime_param0
// CHECK:STDOUT: %Self.ref: type = name_ref Self, constants.%BaseClass [template = constants.%BaseClass]
// CHECK:STDOUT: %self: %BaseClass = bind_name self, %self.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%BaseClass
// CHECK:STDOUT: .Abstract = %Abstract.decl
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Abstract.1[%self.param_patt: %FinalClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Virtual[%self.param_patt: %FinalClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Default[%self.param_patt: %AbstractClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Final[%self.param_patt: %AbstractClass]();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Abstract.2[%self.param_patt: %BaseClass]();
// CHECK:STDOUT:
Reference in New Issue View Git Blame Copy Permalink