On 1 Oct 2013, at 13:03, Robert Jordan <[email protected]> wrote:
> On 01.10.2013 11:37, [email protected] wrote:
>> Is it the case that calling a static field via the embedded API does not
>> cause the static constructor to be run?
>> This seems to be the behaviour I am observing.
>>
>> In the example below setting the static MetaDataXXX fields (before any other
>> static access) does not cause the static constructor to be run and expected
>> behaviour is lost.
>> If I call a static warmup method first, which does trigger the constructor,
>> then all is well.
>
> You're supposed to call mono_runtime_class_init () on the vtable
> of the class before calling mono_field_static_get/set.
>
> Robert
There doesn't seem to be anything in the docs about this.
Is it just a kludge?
in metadata/object.c/mono_field_get_value_object we see
if (type->attrs & FIELD_ATTRIBUTE_STATIC) {
is_static = TRUE;
if (!is_literal) {
vtable = mono_class_vtable_full (domain, field->parent,
TRUE);
if (!vtable->initialized)
mono_runtime_class_init (vtable);
}
} else {
g_assert (obj);
}
However, kludge or not it does seem to work:
void DBMonoClassGetField(MonoClass *monoClass, const char *fieldName, void
*valueObject) {
MonoClassField *field = mono_class_get_field_from_name(monoClass,
fieldName);
MonoVTable *vtable = mono_class_vtable(mono_domain_get(), monoClass);
mono_runtime_class_init(vtable);
mono_field_static_get_value(vtable, field, valueObject);
}
void DBMonoClassSetField(MonoClass *monoClass, const char *fieldName,
MonoObject *valueObject) {
MonoClassField *field = mono_class_get_field_from_name(monoClass,
fieldName);
MonoVTable *vtable = mono_class_vtable(mono_domain_get(), monoClass);
mono_runtime_class_init(vtable);
mono_field_static_set_value(vtable, field, valueObject);
}
Jonathan
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