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https://github.com/carbon-language/carbon-lang.git
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Zenong ZhangandJon Ross-Perkins
b28fd7ebc9
- Added detection of unformed usage with `return var`, control-flow statements and member access. - Refactored the work flow: made flow facts a class and moved operations of flow facts into the class. - Added, cleaned and renamed test cases. Some test cases for the dynamic unformed check were suppressed by the static check. They are now added back. Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
23 lines
861 B
Plaintext
23 lines
861 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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// RUN: %{not} %{explorer} %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes=false %s
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// RUN: %{not} %{explorer} --parser_debug --trace_file=- %s 2>&1 | \
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// RUN: %{FileCheck} --match-full-lines --allow-unused-prefixes %s
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// AUTOUPDATE: %{explorer} %s
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package ExplorerTest api;
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fn Main() -> i32 {
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var (x: i32, y: i32);
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x = 1;
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if (0 == 1) {
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y = 0;
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}
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// Static analysis thinks `y` may be formed, defer the check to run-time.
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// CHECK: RUNTIME ERROR: {{.*}}/explorer/testdata/unformed/dynamic/fail_pattern_declare.carbon:[[@LINE+1]]: undefined behavior: access to uninitialized value Uninit<Placeholder<y>>
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return y;
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}
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