mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-28 09:00:09 +01:00
Richard Smith
ce080b3549
When a class extends an interface, referring to a member name of the interface as an unqualified name should refer to the class's corresponding associated entity value, not to the associated entity itself. Similarly, in an `impl`, unqualified names of associated entities should refer to the `impl`'s corresponding value for that entity. To support this, we treat `impl`s as `extend`ing their implemented facet type, and we make lookups into an extended facet type use the `Self` type of the extending `impl` or `class` if lookup finds an associated entity. We already did the latter if the extending entity was an interface; this extends the existing support for these other cases.
222 lines
6.5 KiB
Plaintext
222 lines
6.5 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/function/declaration/name_poisoning.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/name_poisoning.carbon
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// --- no_poison.carbon
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library "[[@TEST_NAME]]";
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class C1 {}
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class C2 {}
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fn F1(x: C1);
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// `N.F2` uses `N.F1` and not `package.F1`.
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namespace N;
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fn N.F1(x: C2);
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alias N.F2 = F1;
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fn TestCall(x: C2) {
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// `N.F2` accepts a `C2` not a `C1`.
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N.F2(x);
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}
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// --- poison.carbon
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library "[[@TEST_NAME]]";
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fn F1();
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// Use `package.F1` and poison `N.F1`.
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namespace N;
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alias N.F2 = F1;
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// --- fail_declare_after_poison.carbon
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library "[[@TEST_NAME]]";
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fn F1();
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namespace N;
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// Use `package.F1` and poison `N.F1`.
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// CHECK:STDERR: fail_declare_after_poison.carbon:[[@LINE+3]]:14: error: name `F1` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N.F2 = F1;
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// CHECK:STDERR: ^~
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alias N.F2 = F1;
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// Failure: `N.F1` declared after it was poisoned.
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// CHECK:STDERR: fail_declare_after_poison.carbon:[[@LINE+4]]:6: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn N.F1();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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fn N.F1();
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// --- fail_use_poison.carbon
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library "[[@TEST_NAME]]";
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fn F1();
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// Use `package.F1` and poison `N.F1`.
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namespace N;
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alias N.F2 = F1;
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// CHECK:STDERR: fail_use_poison.carbon:[[@LINE+4]]:14: error: member name `F1` not found in `N` [MemberNameNotFoundInInstScope]
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// CHECK:STDERR: alias N.F3 = N.F1;
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// CHECK:STDERR: ^~~~
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// CHECK:STDERR:
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alias N.F3 = N.F1;
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// --- fail_use_declaration_after_poison.carbon
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library "[[@TEST_NAME]]";
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fn F1();
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namespace N;
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// Use `package.F1` and poison `N.F1`.
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// CHECK:STDERR: fail_use_declaration_after_poison.carbon:[[@LINE+3]]:14: error: name `F1` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N.F2 = F1;
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// CHECK:STDERR: ^~
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alias N.F2 = F1;
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// Failure: `N.F1` declared after it was poisoned.
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// CHECK:STDERR: fail_use_declaration_after_poison.carbon:[[@LINE+4]]:6: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn N.F1();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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fn N.F1();
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// Don't produce an additional diagnostic here.
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alias N.F3 = N.F1;
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// --- fail_poison_multiple_scopes.carbon
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library "[[@TEST_NAME]]";
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fn F1();
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namespace N1;
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namespace N1.N2;
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namespace N1.N2.N3;
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// Use `package.F1` and poison:
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// * `N1.F1`
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// * `N1.N2.F1`
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// * `N1.N2.N3.F1`
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// CHECK:STDERR: fail_poison_multiple_scopes.carbon:[[@LINE+3]]:21: error: name `F1` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N1.N2.N3.F2 = F1;
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// CHECK:STDERR: ^~
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alias N1.N2.N3.F2 = F1;
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// CHECK:STDERR: fail_poison_multiple_scopes.carbon:[[@LINE+7]]:7: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn N1.F1();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_poison_multiple_scopes.carbon:[[@LINE-6]]:21: error: name `F1` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N1.N2.N3.F2 = F1;
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// CHECK:STDERR: ^~
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fn N1.F1();
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// CHECK:STDERR: fail_poison_multiple_scopes.carbon:[[@LINE+7]]:10: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn N1.N2.F1();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_poison_multiple_scopes.carbon:[[@LINE-14]]:21: error: name `F1` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N1.N2.N3.F2 = F1;
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// CHECK:STDERR: ^~
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fn N1.N2.F1();
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// CHECK:STDERR: fail_poison_multiple_scopes.carbon:[[@LINE+4]]:13: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn N1.N2.N3.F1();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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fn N1.N2.N3.F1();
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// --- fail_alias.carbon
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library "[[@TEST_NAME]]";
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fn F();
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namespace N;
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// CHECK:STDERR: fail_alias.carbon:[[@LINE+7]]:13: error: name `F` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N.F = F;
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// CHECK:STDERR: ^
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// CHECK:STDERR: fail_alias.carbon:[[@LINE+4]]:9: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: alias N.F = F;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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alias N.F = F;
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// --- ignored_poison_in_import.carbon
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library "[[@TEST_NAME]]";
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import library "poison";
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// This doesn't fail.
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fn N.F1();
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// --- poison.impl.carbon
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impl library "[[@TEST_NAME]]";
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// TODO: #4622 This should fail since `N.F1` was poisoned in the api.
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fn N.F1() {}
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// --- fail_poison_when_lookup_fails.carbon
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library "[[@TEST_NAME]]";
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namespace N;
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// `N.F1` poisoned when not found.
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// CHECK:STDERR: fail_poison_when_lookup_fails.carbon:[[@LINE+7]]:14: error: name `F1` not found [NameNotFound]
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// CHECK:STDERR: alias N.F2 = F1;
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_poison_when_lookup_fails.carbon:[[@LINE+3]]:14: error: name `F1` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N.F2 = F1;
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// CHECK:STDERR: ^~
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alias N.F2 = F1;
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// TODO: We should ideally only produce one diagnostic here.
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// CHECK:STDERR: fail_poison_when_lookup_fails.carbon:[[@LINE+7]]:4: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn F1();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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// CHECK:STDERR: fail_poison_when_lookup_fails.carbon:[[@LINE-7]]:14: error: name `F1` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias N.F2 = F1;
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// CHECK:STDERR: ^~
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fn F1();
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// CHECK:STDERR: fail_poison_when_lookup_fails.carbon:[[@LINE+4]]:6: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn N.F1();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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fn N.F1();
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// --- fail_poison_with_lexical_result.carbon
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library "[[@TEST_NAME]]";
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fn F1() {
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fn F2();
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class C {
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// CHECK:STDERR: fail_poison_with_lexical_result.carbon:[[@LINE+3]]:16: error: name `F2` used before it was declared [NameUseBeforeDecl]
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// CHECK:STDERR: alias F3 = F2;
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// CHECK:STDERR: ^~
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alias F3 = F2;
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// CHECK:STDERR: fail_poison_with_lexical_result.carbon:[[@LINE+4]]:8: note: declared here [NameUseBeforeDeclNote]
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// CHECK:STDERR: fn F2();
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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fn F2();
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}
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}
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