mirror of
https://github.com/carbon-language/carbon-lang.git
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Geoff RomerandRichard Smith
e5b05a1fac
The primary change in this PR is to split the `Initializing` expression category into separate `ReprInitializing` and `InPlaceInitializing` categories, depending on whether initialization uses the types initializing representation, or is guaranteed to be in place. It also rationalizes and documents the SemIR-level semantics of those categories (including where #5545's "ephemeral entire reference" category will fit), and introduces two new inst kinds to close gaps exposed in the process. Some additional secondary changes: - Consistently format the storage arguments of initializers with `to`, regardless of whether initialization is in-place, and document the `to` notation. - Rename some inst kinds and functions, and restructure some of the code, for clarity and consistency with the new documentation. - Resolve a TODO to handle more category conversions in `CategoryConverter`, in order to make it easier to reason about category conversions. See #6588 and the review history of this PR for background. --------- Co-authored-by: Richard Smith <richard@metafoo.co.uk>
78 lines
3.0 KiB
Plaintext
78 lines
3.0 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/convert.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/tuple/class_tuples.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/tuple/class_tuples.carbon
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// Versus the no_prelude basics.carbon, this tests some interactions with
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// `class`.
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// --- fail_element_type_mismatch.carbon
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library "[[@TEST_NAME]]";
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class C {}
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class D {}
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var c: C;
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var d: D;
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// CHECK:STDERR: fail_element_type_mismatch.carbon:[[@LINE+7]]:19: error: cannot implicitly convert expression of type `C` to `C*` [ConversionFailure]
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// CHECK:STDERR: var x: (C*, C*) = (c, d);
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR: fail_element_type_mismatch.carbon:[[@LINE+4]]:19: note: type `C` does not implement interface `Core.ImplicitAs(C*)` [MissingImplInMemberAccessNote]
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// CHECK:STDERR: var x: (C*, C*) = (c, d);
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// CHECK:STDERR: ^~~~~~
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// CHECK:STDERR:
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var x: (C*, C*) = (c, d);
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// --- fail_nested_incomplete.carbon
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library "[[@TEST_NAME]]";
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class Complete {}
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class Incomplete;
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// CHECK:STDERR: fail_nested_incomplete.carbon:[[@LINE+7]]:8: error: binding pattern has incomplete type `(Complete, Incomplete)` in name binding declaration [IncompleteTypeInBindingDecl]
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// CHECK:STDERR: var t: (Complete, Incomplete);
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~
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// CHECK:STDERR: fail_nested_incomplete.carbon:[[@LINE-5]]:1: note: class was forward declared here [ClassForwardDeclaredHere]
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// CHECK:STDERR: class Incomplete;
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// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
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// CHECK:STDERR:
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var t: (Complete, Incomplete);
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var p: Incomplete* = &t[1];
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// --- fail_type_assign.carbon
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library "[[@TEST_NAME]]";
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class C {}
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// CHECK:STDERR: fail_type_assign.carbon:[[@LINE+7]]:16: error: cannot implicitly convert expression of type `type` to `C` [ConversionFailure]
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// CHECK:STDERR: var x: (C, ) = (C, );
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// CHECK:STDERR: ^~~~~
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// CHECK:STDERR: fail_type_assign.carbon:[[@LINE+4]]:16: note: type `type` does not implement interface `Core.ImplicitAs(C)` [MissingImplInMemberAccessNote]
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// CHECK:STDERR: var x: (C, ) = (C, );
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// CHECK:STDERR: ^~~~~
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// CHECK:STDERR:
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var x: (C, ) = (C, );
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// --- fail_value_as_type.carbon
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library "[[@TEST_NAME]]";
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class C {}
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var c: C;
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// CHECK:STDERR: fail_value_as_type.carbon:[[@LINE+7]]:8: error: cannot implicitly convert non-type value of type `C` to `type` [ConversionFailureNonTypeToFacet]
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// CHECK:STDERR: var x: c;
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// CHECK:STDERR: ^
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// CHECK:STDERR: fail_value_as_type.carbon:[[@LINE+4]]:8: note: type `C` does not implement interface `Core.ImplicitAs(type)` [MissingImplInMemberAccessNote]
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// CHECK:STDERR: var x: c;
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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var x: c;
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