mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 22:02:55 +01:00
Geoff RomerandJon Ross-Perkins
dc32aa2690
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>
121 lines
5.2 KiB
Plaintext
121 lines
5.2 KiB
Plaintext
// 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_base_repeated.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_base_repeated.carbon
|
|
|
|
base class B1 {}
|
|
base class B2 {}
|
|
|
|
class C {
|
|
extend base: B1;
|
|
// CHECK:STDERR: fail_base_repeated.carbon:[[@LINE+7]]:3: error: multiple `base` declarations in class; multiple inheritance is not permitted
|
|
// CHECK:STDERR: extend base: B2;
|
|
// CHECK:STDERR: ^~~~~~~~~~~~~~~~
|
|
// CHECK:STDERR: fail_base_repeated.carbon:[[@LINE-4]]:3: note: previous `base` declaration is here
|
|
// CHECK:STDERR: extend base: B1;
|
|
// CHECK:STDERR: ^~~~~~~~~~~~~~~~
|
|
// CHECK:STDERR:
|
|
extend base: B2;
|
|
}
|
|
|
|
class D {
|
|
// TODO: Consider adding a custom diagnostic for this case.
|
|
extend base: B1;
|
|
// CHECK:STDERR: fail_base_repeated.carbon:[[@LINE+6]]:3: error: multiple `base` declarations in class; multiple inheritance is not permitted
|
|
// CHECK:STDERR: extend base: B1;
|
|
// CHECK:STDERR: ^~~~~~~~~~~~~~~~
|
|
// CHECK:STDERR: fail_base_repeated.carbon:[[@LINE-4]]:3: note: previous `base` declaration is here
|
|
// CHECK:STDERR: extend base: B1;
|
|
// CHECK:STDERR: ^~~~~~~~~~~~~~~~
|
|
extend base: B1;
|
|
}
|
|
|
|
// CHECK:STDOUT: --- fail_base_repeated.carbon
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: constants {
|
|
// CHECK:STDOUT: %B1: type = class_type @B1 [template]
|
|
// CHECK:STDOUT: %.1: type = struct_type {} [template]
|
|
// CHECK:STDOUT: %.2: <witness> = complete_type_witness %.1 [template]
|
|
// CHECK:STDOUT: %B2: type = class_type @B2 [template]
|
|
// CHECK:STDOUT: %C: type = class_type @C [template]
|
|
// CHECK:STDOUT: %.3: type = tuple_type () [template]
|
|
// CHECK:STDOUT: %.4: type = ptr_type %.1 [template]
|
|
// CHECK:STDOUT: %.5: type = unbound_element_type %C, %B1 [template]
|
|
// CHECK:STDOUT: %.6: type = struct_type {.base: %B1} [template]
|
|
// CHECK:STDOUT: %.7: <witness> = complete_type_witness %.6 [template]
|
|
// CHECK:STDOUT: %D: type = class_type @D [template]
|
|
// CHECK:STDOUT: %.8: type = unbound_element_type %D, %B1 [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: .B1 = %B1.decl
|
|
// CHECK:STDOUT: .B2 = %B2.decl
|
|
// CHECK:STDOUT: .C = %C.decl
|
|
// CHECK:STDOUT: .D = %D.decl
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT: %Core.import = import Core
|
|
// CHECK:STDOUT: %B1.decl: type = class_decl @B1 [template = constants.%B1] {} {}
|
|
// CHECK:STDOUT: %B2.decl: type = class_decl @B2 [template = constants.%B2] {} {}
|
|
// CHECK:STDOUT: %C.decl: type = class_decl @C [template = constants.%C] {} {}
|
|
// CHECK:STDOUT: %D.decl: type = class_decl @D [template = constants.%D] {} {}
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: class @B1 {
|
|
// CHECK:STDOUT: %.loc11: <witness> = complete_type_witness %.1 [template = constants.%.2]
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: !members:
|
|
// CHECK:STDOUT: .Self = constants.%B1
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: class @B2 {
|
|
// CHECK:STDOUT: %.loc12: <witness> = complete_type_witness %.1 [template = constants.%.2]
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: !members:
|
|
// CHECK:STDOUT: .Self = constants.%B2
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: class @C {
|
|
// CHECK:STDOUT: %B1.ref: type = name_ref B1, file.%B1.decl [template = constants.%B1]
|
|
// CHECK:STDOUT: %.loc15: %.5 = base_decl %B1, element0 [template]
|
|
// CHECK:STDOUT: %B2.ref: type = name_ref B2, file.%B2.decl [template = constants.%B2]
|
|
// CHECK:STDOUT: %.loc24: <witness> = complete_type_witness %.6 [template = constants.%.7]
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: !members:
|
|
// CHECK:STDOUT: .Self = constants.%C
|
|
// CHECK:STDOUT: .base = %.loc15
|
|
// CHECK:STDOUT: extend name_scope2
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: class @D {
|
|
// CHECK:STDOUT: %B1.ref.loc28: type = name_ref B1, file.%B1.decl [template = constants.%B1]
|
|
// CHECK:STDOUT: %.loc28: %.8 = base_decl %B1, element0 [template]
|
|
// CHECK:STDOUT: %B1.ref.loc35: type = name_ref B1, file.%B1.decl [template = constants.%B1]
|
|
// CHECK:STDOUT: %.loc36: <witness> = complete_type_witness %.6 [template = constants.%.7]
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: !members:
|
|
// CHECK:STDOUT: .Self = constants.%D
|
|
// CHECK:STDOUT: .base = %.loc28
|
|
// CHECK:STDOUT: extend name_scope2
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|