74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
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// RUN: %clang_analyze_cc1 -std=c++2b -verify %s \
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// RUN: -analyzer-checker=core,debug.ExprInspection
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template <typename T> void clang_analyzer_dump(T);
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struct S {
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int num;
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S *orig;
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void a(this auto Self) {
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clang_analyzer_dump(&Self); // expected-warning {{&Self}}
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clang_analyzer_dump(Self.orig); // expected-warning {{&s}}
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clang_analyzer_dump(Self.num); // expected-warning {{5 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{5 S32b}}
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Self.num = 1;
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clang_analyzer_dump(Self.num); // expected-warning {{1 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{5 S32b}}
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}
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void b(this auto& Self) {
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clang_analyzer_dump(&Self); // expected-warning {{&s}}
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clang_analyzer_dump(Self.orig); // expected-warning {{&s}}
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clang_analyzer_dump(Self.num); // expected-warning {{5 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{5 S32b}}
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Self.num = 2;
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clang_analyzer_dump(Self.num); // expected-warning {{2 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{2 S32b}}
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}
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void c(this S Self) {
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clang_analyzer_dump(&Self); // expected-warning {{&Self}}
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clang_analyzer_dump(Self.orig); // expected-warning {{&s}}
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clang_analyzer_dump(Self.num); // expected-warning {{2 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{2 S32b}}
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Self.num = 3;
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clang_analyzer_dump(Self.num); // expected-warning {{3 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{2 S32b}}
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}
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void c(this S Self, int I) {
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clang_analyzer_dump(I); // expected-warning {{11 S32b}}
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clang_analyzer_dump(&Self); // expected-warning {{&Self}}
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clang_analyzer_dump(Self.orig); // expected-warning {{&s}}
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clang_analyzer_dump(Self.num); // expected-warning {{2 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{2 S32b}}
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Self.num = 4;
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clang_analyzer_dump(Self.num); // expected-warning {{4 S32b}}
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clang_analyzer_dump(Self.orig->num); // expected-warning {{2 S32b}}
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}
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};
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void top() {
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S s = {/*num=*/5, /*orig=*/&s};
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s.a();
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s.b(); // This call changes 's.num' to 2.
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s.c();
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s.c(11);
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}
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struct S2 {
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bool operator==(this auto, S2) {
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return true;
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}
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};
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void use_deducing_this() {
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int result = S2{} == S2{}; // no-crash
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clang_analyzer_dump(result); // expected-warning {{1 S32b}}
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}
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