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https://github.com/carbon-language/carbon-lang.git
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Dana Jansens
6776e2b804
Avoid crashing on the fact that block scopes have no related InstId. So we can't push the InstId of the current scope in the ImplIntroducer node, as it can be None. Instead we have to find the parent InstId when we're building the ImplDecl, because the ImplDecl has a node at the top of the scope stack for the DeclNameStack. Impls are allowed in sequential (non-declarative) scopes (functions, blocks), but [redeclarations are not allowed](https://github.com/carbon-language/carbon-lang/blob/db24042fe56d22275aa801696e2f8f5c4171e35b/proposals/p3763.md?plain=1#L279). We now diagnose these redecls as invalid.
57 lines
2.6 KiB
Plaintext
57 lines
2.6 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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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/none.carbon
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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/impl/impl_inside_interface.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/impl/impl_inside_interface.carbon
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// --- fail_todo_impl_in_interface_definition.carbon
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library "[[@TEST_NAME]]";
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// This test uses many unsupported features, and is expected to change.
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interface I {
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// CHECK:STDERR: fail_todo_impl_in_interface_definition.carbon:[[@LINE+4]]:3: error: semantics TODO: `interface modifier` [SemanticsTodo]
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// CHECK:STDERR: default fn F() {
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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default fn F() {
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class C {}
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// CHECK:STDERR: fail_todo_impl_in_interface_definition.carbon:[[@LINE+7]]:5: error: missing implementation of F in impl of interface I [ImplMissingFunction]
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// CHECK:STDERR: impl C as I {}
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// CHECK:STDERR: ^~~~~~~~~~~~~
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// CHECK:STDERR: fail_todo_impl_in_interface_definition.carbon:[[@LINE-5]]:3: note: associated function F declared here [AssociatedFunctionHere]
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// CHECK:STDERR: default fn F() {
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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impl C as I {}
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}
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}
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// --- fail_todo_impl_in_interface_definition_with_associated.carbon
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library "[[@TEST_NAME]]";
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// This test uses many unsupported features, and is expected to change.
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interface I {
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let U:! type;
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// CHECK:STDERR: fail_todo_impl_in_interface_definition_with_associated.carbon:[[@LINE+4]]:3: error: semantics TODO: `interface modifier` [SemanticsTodo]
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// CHECK:STDERR: default fn F() {
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// CHECK:STDERR: ^~~~~~~
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// CHECK:STDERR:
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default fn F() {
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class C {}
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// CHECK:STDERR: fail_todo_impl_in_interface_definition_with_associated.carbon:[[@LINE+7]]:5: error: missing implementation of F in impl of interface I [ImplMissingFunction]
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// CHECK:STDERR: impl C as I where .U = C {}
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR: fail_todo_impl_in_interface_definition_with_associated.carbon:[[@LINE-5]]:3: note: associated function F declared here [AssociatedFunctionHere]
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// CHECK:STDERR: default fn F() {
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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impl C as I where .U = C {}
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}
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}
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