Variant f_constant(CStrRef name) {
if (!name.get()) return uninit_null();
const char *data = name.data();
int len = name.length();
char *colon;
if ((colon = (char*)memchr(data, ':', len)) && colon[1] == ':') {
// class constant
int classNameLen = colon - data;
char *constantName = colon + 2;
VM::Class* cls = getClassByName(data, classNameLen);
if (cls) {
String cnsName(constantName, data + len - constantName, CopyString);
TypedValue* tv = cls->clsCnsGet(cnsName.get());
if (tv) {
return tvAsCVarRef(tv);
}
}
raise_warning("Couldn't find constant %s", data);
return uninit_null();
} else {
TypedValue* cns = VM::Unit::loadCns(name.get());
if (cns) return tvAsVariant(cns);
return uninit_null();
}
}
Variant f_constant(CStrRef name) {
if (!name.get()) return null;
const char *data = name.data();
int len = name.length();
char *colon;
if ((colon = (char*)memchr(data, ':', len)) && colon[1] == ':') {
// class constant
int classNameLen = colon - data;
char *constantName = colon + 2;
String className(data, classNameLen, CopyString);
// translate "self" or "parent"
if (className == "self") {
String this_class = g_vmContext->getContextClassName();
if (this_class.empty()) {
throw FatalErrorException("Cannot access self:: "
"when no class scope is active");
} else {
className = this_class;
}
} else if (className == "parent") {
String parent_class =g_vmContext->getParentContextClassName();
if (parent_class.empty()) {
throw FatalErrorException("Cannot access parent");
} else {
className = parent_class;
}
}
VM::Class* cls = VM::Unit::loadClass(className.get());
if (cls) {
String cnsName(constantName, data + len - constantName, CopyString);
TypedValue* tv = cls->clsCnsGet(cnsName.get());
if (tv) {
return tvAsCVarRef(tv);
}
}
raise_warning("Couldn't find constant %s", data);
return null;
} else {
TypedValue* cns = g_vmContext->getCns(name.get());
if (cns == NULL) {
if (AutoloadHandler::s_instance->autoloadConstant(name)) {
cns = g_vmContext->getCns(name.get());
}
}
if (cns) return tvAsVariant(cns);
return null;
}
}
bool f_defined(CStrRef name, bool autoload /* = true */) {
if (!name.get()) return false;
const char *data = name.data();
int len = name.length();
char *colon;
if ((colon = (char*)memchr(data, ':', len)) && colon[1] == ':') {
// class constant
int classNameLen = colon - data;
char *constantName = colon + 2;
VM::Class* cls = getClassByName(data, classNameLen);
if (cls) {
String cnsName(constantName, data + len - constantName, CopyString);
return cls->clsCnsGet(cnsName.get());
}
return false;
} else {
return autoload ?
VM::Unit::loadCns(name.get()) :
VM::Unit::lookupCns(name.get());
}
}