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1f67508b7f
We want to trust user type annotations and stop assuming pointers declared as nonnull still can be null. This functionality is implemented as part of NonNullParamChecker because it already checks parameter attributes. Whenever we start analyzing a new function, we assume that all parameters with 'nonnull' attribute are indeed non-null. Patch by Valeriy Savchenko! Differential Revision: https://reviews.llvm.org/D77806
35 lines
767 B
C++
35 lines
767 B
C++
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core -verify %s
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void nonnull [[gnu::nonnull]] (int *q);
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void f1(int *p) {
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if (p)
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return;
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nonnull(p); //expected-warning{{nonnull}}
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}
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void f2(int *p) {
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if (p)
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return;
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auto lambda = [](int *q) __attribute__((nonnull)){};
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lambda(p); //expected-warning{{nonnull}}
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}
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template <class... ARGS>
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void variadicNonnull(ARGS... args) __attribute__((nonnull));
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void f3(int a, float b, int *p) {
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if (p)
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return;
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variadicNonnull(a, b, p); //expected-warning{{nonnull}}
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}
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int globalVar = 15;
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void moreParamsThanArgs [[gnu::nonnull(2, 4)]] (int a, int *p, int b = 42, int *q = &globalVar);
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void f4(int a, int *p) {
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if (p)
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return;
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moreParamsThanArgs(a, p); //expected-warning{{nonnull}}
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}
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