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Make JLocal and JArrayRef movable but non-copyable.

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This commit is contained in:
Peter Johnson
2016-12-14 23:26:41 -08:00
parent 99395273c7
commit 2df00647d5
1 changed files with 32 additions and 0 deletions
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32
wpiutil/include/support/jni_util.h
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@@ -60,6 +60,17 @@ template <typename T>
class JLocal {
public:
JLocal(JNIEnv *env, T obj) : m_env(env), m_obj(obj) {}
JLocal(const JLocal&) = delete;
JLocal(JLocal&& oth) : m_env(oth.m_env), m_obj(oth.m_obj) {
oth.m_obj = nullptr;
}
JLocal& operator=(const JLocal&) = delete;
JLocal& operator=(JLocal&& oth) {
m_env = oth.m_env;
m_obj = oth.m_obj;
oth.m_obj = nullptr;
return *this;
}
~JLocal() {
if (m_obj) m_env->DeleteLocalRef(m_obj);
}
@@ -131,6 +142,27 @@ class JArrayRefBase : public JArrayRefInner<JArrayRefBase<T>, T> {
return llvm::ArrayRef<T>{this->m_elements, this->m_size};
}
JArrayRefBase(const JArrayRefBase&) = delete;
JArrayRefBase& operator=(const JArrayRefBase&) = delete;
JArrayRefBase(JArrayRefBase&& oth)
: m_env(oth.m_env),
m_jarr(oth.m_jarr),
m_size(oth.m_size),
m_elements(oth.m_elements) {
oth.m_jarr = nullptr;
oth.m_elements = nullptr;
}
JArrayRefBase& operator=(JArrayRefBase&& oth) {
this->m_env = oth.m_env;
this->m_jarr = oth.m_jarr;
this->m_size = oth.m_size;
this->m_elements = oth.m_elements;
oth.m_jarr = nullptr;
oth.m_elements = nullptr;
}
protected:
JArrayRefBase(JNIEnv *env, T* elements, size_t size) {
this->m_env = env;