mozjs_sys 0.67.1

System crate for the Mozilla SpiderMonkey JavaScript engine.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62

#include "gdb-tests.h"

#include "jsapi.h"

#include "gc/Barrier.h"
#include "vm/JSFunction.h"

FRAGMENT(Root, null) {
  JS::Rooted<JSObject*> null(cx, nullptr);

  breakpoint();

  use(null);
}

void callee(JS::Handle<JSObject*> obj,
            JS::MutableHandle<JSObject*> mutableObj) {
  // Prevent the linker from unifying this function with others that are
  // equivalent in machine code but not type.
  fprintf(stderr, "Called " __FILE__ ":callee\n");
  breakpoint();
}

FRAGMENT(Root, handle) {
  JS::Rooted<JSObject*> global(cx, JS::CurrentGlobalOrNull(cx));
  callee(global, &global);
  use(global);
}

FRAGMENT(Root, HeapSlot) {
  JS::Rooted<JS::Value> plinth(
      cx, JS::StringValue(JS_NewStringCopyZ(cx, "plinth")));
  JS::Rooted<JSObject*> array(
      cx, JS_NewArrayObject(cx, JS::HandleValueArray(plinth)));

  breakpoint();

  use(plinth);
  use(array);
}

FRAGMENT(Root, barriers) {
  JSObject* obj = JS_NewPlainObject(cx);
  js::PreBarriered<JSObject*> prebarriered(obj);
  js::GCPtrObject heapptr(obj);
  js::HeapPtr<JSObject*> relocatable(obj);

  JS::Value val = JS::ObjectValue(*obj);
  js::PreBarrieredValue prebarrieredValue(JS::ObjectValue(*obj));
  js::GCPtrValue heapValue(JS::ObjectValue(*obj));
  js::HeapPtr<JS::Value> relocatableValue(JS::ObjectValue(*obj));

  breakpoint();

  use(prebarriered);
  use(heapptr);
  use(relocatable);
  use(val);
  use(prebarrieredValue);
  use(heapValue);
  use(relocatableValue);
}