mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-11-15 21:58:09 +00:00
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>
158 lines
8.2 KiB
Plaintext
158 lines
8.2 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/function/declaration/no_prelude/fail_modifiers.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/declaration/no_prelude/fail_modifiers.carbon
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+11]]:1: error: `default` not allowed on `fn` declaration outside of an interface
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// CHECK:STDERR: default protected fn WrongOrder();
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+7]]:9: error: `protected` must appear before `default`
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// CHECK:STDERR: default protected fn WrongOrder();
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// CHECK:STDERR: ^~~~~~~~~
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+4]]:1: note: `default` previously appeared here
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// CHECK:STDERR: default protected fn WrongOrder();
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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default protected fn WrongOrder();
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+11]]:1: error: `virtual` not allowed on `fn` declaration outside of a class
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// CHECK:STDERR: virtual virtual fn DuplicateVirtual() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+7]]:9: error: `virtual` repeated on declaration
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// CHECK:STDERR: virtual virtual fn DuplicateVirtual() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+4]]:1: note: `virtual` previously appeared here
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// CHECK:STDERR: virtual virtual fn DuplicateVirtual() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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virtual virtual fn DuplicateVirtual() {}
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+7]]:9: error: `protected` not allowed on declaration with `private`
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// CHECK:STDERR: private protected fn TwoAccess();
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// CHECK:STDERR: ^~~~~~~~~
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+4]]:1: note: `private` previously appeared here
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// CHECK:STDERR: private protected fn TwoAccess();
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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private protected fn TwoAccess();
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+11]]:1: error: `abstract` not allowed on `fn` declaration outside of a class
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// CHECK:STDERR: abstract virtual fn ModifiersConflict() {}
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// CHECK:STDERR: ^~~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+7]]:10: error: `virtual` not allowed on declaration with `abstract`
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// CHECK:STDERR: abstract virtual fn ModifiersConflict() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+4]]:1: note: `abstract` previously appeared here
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// CHECK:STDERR: abstract virtual fn ModifiersConflict() {}
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// CHECK:STDERR: ^~~~~~~~
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// CHECK:STDERR:
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abstract virtual fn ModifiersConflict() {}
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+4]]:1: error: `base` not allowed on `fn` declaration
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// CHECK:STDERR: base fn InvalidModifier();
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// CHECK:STDERR: ^~~~
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// CHECK:STDERR:
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base fn InvalidModifier();
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+18]]:1: error: `default` not allowed on `fn` declaration outside of an interface
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// CHECK:STDERR: default final virtual fn ModifiersConflict2() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+14]]:9: error: `final` not allowed on declaration with `default`
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// CHECK:STDERR: default final virtual fn ModifiersConflict2() {}
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// CHECK:STDERR: ^~~~~
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+11]]:1: note: `default` previously appeared here
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// CHECK:STDERR: default final virtual fn ModifiersConflict2() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+7]]:15: error: `virtual` not allowed on declaration with `default`
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// CHECK:STDERR: default final virtual fn ModifiersConflict2() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+4]]:1: note: `default` previously appeared here
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// CHECK:STDERR: default final virtual fn ModifiersConflict2() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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default final virtual fn ModifiersConflict2() {}
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+6]]:8: error: `private` must appear before `extern`
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// CHECK:STDERR: extern private fn ExternOrderAndConflict() {}
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR: fail_modifiers.carbon:[[@LINE+3]]:1: note: `extern` previously appeared here
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// CHECK:STDERR: extern private fn ExternOrderAndConflict() {}
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// CHECK:STDERR: ^~~~~~
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extern private fn ExternOrderAndConflict() {}
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// CHECK:STDOUT: --- fail_modifiers.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: %WrongOrder.type: type = fn_type @WrongOrder [template]
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// CHECK:STDOUT: %.1: type = tuple_type () [template]
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// CHECK:STDOUT: %WrongOrder: %WrongOrder.type = struct_value () [template]
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// CHECK:STDOUT: %DuplicateVirtual.type: type = fn_type @DuplicateVirtual [template]
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// CHECK:STDOUT: %DuplicateVirtual: %DuplicateVirtual.type = struct_value () [template]
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// CHECK:STDOUT: %TwoAccess.type: type = fn_type @TwoAccess [template]
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// CHECK:STDOUT: %TwoAccess: %TwoAccess.type = struct_value () [template]
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// CHECK:STDOUT: %ModifiersConflict.type: type = fn_type @ModifiersConflict [template]
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// CHECK:STDOUT: %ModifiersConflict: %ModifiersConflict.type = struct_value () [template]
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// CHECK:STDOUT: %InvalidModifier.type: type = fn_type @InvalidModifier [template]
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// CHECK:STDOUT: %InvalidModifier: %InvalidModifier.type = struct_value () [template]
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// CHECK:STDOUT: %ModifiersConflict2.type: type = fn_type @ModifiersConflict2 [template]
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// CHECK:STDOUT: %ModifiersConflict2: %ModifiersConflict2.type = struct_value () [template]
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// CHECK:STDOUT: %ExternOrderAndConflict.type: type = fn_type @ExternOrderAndConflict [template]
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// CHECK:STDOUT: %ExternOrderAndConflict: %ExternOrderAndConflict.type = struct_value () [template]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [template] {
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// CHECK:STDOUT: .WrongOrder = %WrongOrder.decl
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// CHECK:STDOUT: .DuplicateVirtual = %DuplicateVirtual.decl
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// CHECK:STDOUT: .TwoAccess [private] = %TwoAccess.decl
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// CHECK:STDOUT: .ModifiersConflict = %ModifiersConflict.decl
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// CHECK:STDOUT: .InvalidModifier = %InvalidModifier.decl
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// CHECK:STDOUT: .ModifiersConflict2 = %ModifiersConflict2.decl
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// CHECK:STDOUT: .ExternOrderAndConflict = %ExternOrderAndConflict.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %WrongOrder.decl: %WrongOrder.type = fn_decl @WrongOrder [template = constants.%WrongOrder] {} {}
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// CHECK:STDOUT: %DuplicateVirtual.decl: %DuplicateVirtual.type = fn_decl @DuplicateVirtual [template = constants.%DuplicateVirtual] {} {}
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// CHECK:STDOUT: %TwoAccess.decl: %TwoAccess.type = fn_decl @TwoAccess [template = constants.%TwoAccess] {} {}
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// CHECK:STDOUT: %ModifiersConflict.decl: %ModifiersConflict.type = fn_decl @ModifiersConflict [template = constants.%ModifiersConflict] {} {}
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// CHECK:STDOUT: %InvalidModifier.decl: %InvalidModifier.type = fn_decl @InvalidModifier [template = constants.%InvalidModifier] {} {}
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// CHECK:STDOUT: %ModifiersConflict2.decl: %ModifiersConflict2.type = fn_decl @ModifiersConflict2 [template = constants.%ModifiersConflict2] {} {}
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// CHECK:STDOUT: %ExternOrderAndConflict.decl: %ExternOrderAndConflict.type = fn_decl @ExternOrderAndConflict [template = constants.%ExternOrderAndConflict] {} {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @WrongOrder();
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @DuplicateVirtual() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @TwoAccess();
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @ModifiersConflict() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @InvalidModifier();
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @ModifiersConflict2() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: extern fn @ExternOrderAndConflict() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: return
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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