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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /build/clang-plugin/tests/TestStackClass.cpp | |
parent | Initial commit. (diff) | |
download | firefox-upstream.tar.xz firefox-upstream.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'build/clang-plugin/tests/TestStackClass.cpp')
-rw-r--r-- | build/clang-plugin/tests/TestStackClass.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestStackClass.cpp b/build/clang-plugin/tests/TestStackClass.cpp new file mode 100644 index 0000000000..3289abef1b --- /dev/null +++ b/build/clang-plugin/tests/TestStackClass.cpp @@ -0,0 +1,50 @@ +#define MOZ_STACK_CLASS __attribute__((annotate("moz_stack_class"))) +#include <stddef.h> + +struct MOZ_STACK_CLASS Stack { + int i; + void *operator new(size_t x) throw() { return 0; } + void *operator new(size_t blah, char *buffer) { return buffer; } +}; + +template <class T> +struct MOZ_STACK_CLASS TemplateClass { + T i; +}; + +void gobble(void *) { } + +void misuseStackClass(int len) { + Stack valid; + Stack alsoValid[2]; + static Stack notValid; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}} + static Stack alsoNotValid[2]; // expected-error-re {{variable of type 'Stack{{ ?}}[2]' only valid on the stack}} expected-note-re {{'Stack{{ ?}}[2]' is a stack type because it is an array of stack type 'Stack'}} expected-note {{value incorrectly allocated in a global variable}} + + gobble(&valid); + gobble(¬Valid); + gobble(&alsoValid[0]); + + gobble(new Stack); // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}} + gobble(new Stack[10]); // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}} + gobble(new TemplateClass<int>); // expected-error {{variable of type 'TemplateClass<int>' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}} + gobble(len <= 5 ? &valid : new Stack); // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated on the heap}} + + char buffer[sizeof(Stack)]; + gobble(new (buffer) Stack); +} + +Stack notValid; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}} +struct RandomClass { + Stack nonstaticMember; // expected-note {{'RandomClass' is a stack type because member 'nonstaticMember' is a stack type 'Stack'}} + static Stack staticMember; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}} +}; +struct MOZ_STACK_CLASS RandomStackClass { + Stack nonstaticMember; + static Stack staticMember; // expected-error {{variable of type 'Stack' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}} +}; + +struct BadInherit : Stack {}; // expected-note {{'BadInherit' is a stack type because it inherits from a stack type 'Stack'}} +struct MOZ_STACK_CLASS GoodInherit : Stack {}; + +BadInherit moreInvalid; // expected-error {{variable of type 'BadInherit' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}} +RandomClass evenMoreInvalid; // expected-error {{variable of type 'RandomClass' only valid on the stack}} expected-note {{value incorrectly allocated in a global variable}} |