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1e270be088
Generate fix-its for function parameters that are raw pointers used
unsafely. Currently, the analyzer fixes one parameter at a time.
Fix-its for a function parameter includes:
- Fix the parameter declaration of the definition, result in a new
overload of the function. We call the function with the original
signature the old overload.
- For any other existing declaration of the old overload, mark it with
the [[unsafe_buffer_usage]] attribute and generate a new overload
declaration next to it.
- Creates a new definition for the old overload, which is simply
defined by a call to the new overload.
Reviewed by: NoQ (Artem Dergachev), t-rasmud (Rashmi Mudduluru), and
jkorous (Jan Korous)
Differential revision: https://reviews.llvm.org/D143048
14 lines
629 B
C++
14 lines
629 B
C++
// RUN: %clang_cc1 -std=c++20 -Wno-all -Wunsafe-buffer-usage -fcxx-exceptions -fsafe-buffer-usage-suggestions -verify %s
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// RUN: %clang_cc1 -std=c++20 -Wunsafe-buffer-usage -fcxx-exceptions -fdiagnostics-parseable-fixits -fsafe-buffer-usage-suggestions %s 2>&1 | FileCheck %s
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// We do not fix parameters of the `main` function
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// CHECK-NOT: fix-it:
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// main function
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int main(int argc, char *argv[]) { // expected-warning{{'argv' is an unsafe pointer used for buffer access}}
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char tmp;
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tmp = argv[5][5]; // expected-note{{used in buffer access here}} \
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expected-warning{{unsafe buffer access}}
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}
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