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ATHARVA
d98784b972
### Description When looking up default initializers for class elements in `ConvertStructToClass`, the compiler previously assumed that every member looked up from the class scope was a `FieldDecl` and called `GetAs<SemIR::FieldDecl>` directly. For a derived class with a base class, looking up `base` returns a `BaseDecl`, which caused a `CHECK` assertion failure when casting to `FieldDecl`. Use `TryGetAs<SemIR::FieldDecl>` instead so non-`FieldDecl` entries like `BaseDecl` are recognized as having no default initializer, cleanly diagnosing that the `base` field is missing. Fixes #7722 Assisted-by: Google Deepmind Antigravity
26 lines
982 B
Plaintext
26 lines
982 B
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/class/inheritance/fail_init_missing_base.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/class/inheritance/fail_init_missing_base.carbon
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base class X {}
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class Z {
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extend base: X;
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}
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fn Run() {
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// CHECK:STDERR: fail_init_missing_base.carbon:[[@LINE+4]]:14: error: missing value for field `base` in struct initialization [StructInitMissingFieldInLiteral]
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// CHECK:STDERR: var _: Z = {};
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// CHECK:STDERR: ^~
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// CHECK:STDERR:
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var _: Z = {};
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}
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