855f0ce79b
Summary: Nonnull attribute can be applied to non-pointers. This caused assertion failures in NonNullParamChecker when we tried to *assume* such parameters to be non-zero. rdar://problem/63150074 Differential Revision: https://reviews.llvm.org/D79843
50 lines
1.4 KiB
Objective-C
50 lines
1.4 KiB
Objective-C
// RUN: %clang_analyze_cc1 -verify -Wno-objc-root-class %s \
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// RUN: -Wno-tautological-pointer-compare \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=nullability \
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// RUN: -analyzer-checker=debug.ExprInspection
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void clang_analyzer_eval(int);
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@interface TestFunctionLevelAnnotations
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- (void)method1:(int *_Nonnull)x;
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- (void)method2:(int *)x __attribute__((nonnull));
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@end
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@implementation TestFunctionLevelAnnotations
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- (void)method1:(int *_Nonnull)x {
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clang_analyzer_eval(x != 0); // expected-warning{{TRUE}}
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}
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- (void)method2:(int *)x {
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clang_analyzer_eval(x != 0); // expected-warning{{TRUE}}
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}
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@end
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typedef struct NestedNonnullMember {
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struct NestedNonnullMember *Child;
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int *_Nonnull Value;
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} NestedNonnullMember;
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NestedNonnullMember *foo();
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void f1(NestedNonnullMember *Root) {
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NestedNonnullMember *Grandson = Root->Child->Child;
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clang_analyzer_eval(Root->Value != 0); // expected-warning{{TRUE}}
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clang_analyzer_eval(Grandson->Value != 0); // expected-warning{{TRUE}}
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clang_analyzer_eval(foo()->Child->Value != 0); // expected-warning{{TRUE}}
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}
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// Check that we correctly process situations when non-pointer parameters
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// get nonnul attributes.
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// Original problem: rdar://problem/63150074
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typedef struct {
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long a;
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} B;
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__attribute__((nonnull)) void c(B x, int *y);
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void c(B x, int *y) {
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clang_analyzer_eval(y != 0); // expected-warning{{TRUE}}
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}
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