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https://github.com/carbon-language/carbon-lang.git
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Dana JansensandJon Ross-Perkins
f02ad1f1ca
Uses of `ConstantValueStore::GetConstantInstId` or `ConstantValueStore::GetInstId` in eval indicate that the code expects a constant value. Instead of just ending up with `None` in strange places, diagnose this and convert to an `ErrorInst` when expectations are not met. We add `RequireConstantValue` to pair with `GetConstantValue`, and rename `GetConstantValueIgnoringPeriodSelf` to `RequireConstantValueIgnoringPeriodSelf` since the former would just be unused. Adds a test where a runtime value ends up in the RHS of a rewrite constraint, where a constant value is expected. This issue was uncovered by a fuzzer. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
28 lines
1017 B
Plaintext
28 lines
1017 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/eval/unexpected_runtime.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/eval/unexpected_runtime.carbon
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// --- fail_unexpected_runtime.carbon
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var x: type;
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interface Z {
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let T:! type;
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}
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class D {
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// CHECK:STDERR: fail_unexpected_runtime.carbon:[[@LINE+4]]:31: error: expression is runtime; expected constant [EvalRequiresConstantValue]
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// CHECK:STDERR: extend impl as Z where .T = x {}
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// CHECK:STDERR: ^
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// CHECK:STDERR:
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extend impl as Z where .T = x {}
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}
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