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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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52
build/clang-plugin/tests/TestGlobalClass.cpp Normal file
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#define MOZ_GLOBAL_CLASS __attribute__((annotate("moz_global_class")))
#include <stddef.h>
struct MOZ_GLOBAL_CLASS Global {
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_GLOBAL_CLASS TemplateClass {
T i;
};
void gobble(void *) { }
void misuseGlobalClass(int len) {
Global notValid; // expected-error {{variable of type 'Global' only valid as global}} expected-note {{value incorrectly allocated in an automatic variable}}
Global alsoNotValid[2]; // expected-error {{variable of type 'Global [2]' only valid as global}} expected-note {{'Global [2]' is a global type because it is an array of global type 'Global'}} expected-note {{value incorrectly allocated in an automatic variable}}
static Global valid;
static Global alsoValid[2];
gobble(&notValid);
gobble(&valid);
gobble(&alsoValid[0]);
gobble(new Global); // expected-error {{variable of type 'Global' only valid as global}} expected-note {{value incorrectly allocated on the heap}}
gobble(new Global[10]); // expected-error {{variable of type 'Global' only valid as global}} expected-note {{value incorrectly allocated on the heap}}
gobble(new TemplateClass<int>); // expected-error {{variable of type 'TemplateClass<int>' only valid as global}} expected-note {{value incorrectly allocated on the heap}}
gobble(len <= 5 ? &valid : new Global); // expected-error {{variable of type 'Global' only valid as global}} expected-note {{value incorrectly allocated on the heap}}
char buffer[sizeof(Global)];
gobble(new (buffer) Global);
}
Global valid;
struct RandomClass {
Global nonstaticMember; // expected-note {{'RandomClass' is a global type because member 'nonstaticMember' is a global type 'Global'}}
static Global staticMember;
};
struct MOZ_GLOBAL_CLASS RandomGlobalClass {
Global nonstaticMember;
static Global staticMember;
};
struct BadInherit : Global {}; // expected-note {{'BadInherit' is a global type because it inherits from a global type 'Global'}}
struct MOZ_GLOBAL_CLASS GoodInherit : Global {};
void misuseGlobalClassEvenMore(int len) {
BadInherit moreInvalid; // expected-error {{variable of type 'BadInherit' only valid as global}} expected-note {{value incorrectly allocated in an automatic variable}}
RandomClass evenMoreInvalid; // expected-error {{variable of type 'RandomClass' only valid as global}} expected-note {{value incorrectly allocated in an automatic variable}}
}