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/* Domain-independent part of the Java interface: inline functions.
Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
Copyright (C) 2010-2016 BUGSENG srl (http://bugseng.com)
This file is part of the Parma Polyhedra Library (PPL).
The PPL is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
The PPL is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
For the most up-to-date information see the Parma Polyhedra Library
site: http://bugseng.com/products/ppl/ . */
#ifndef PPL_ppl_java_common_inlines_hh
#define PPL_ppl_java_common_inlines_hh 1
#include <cassert>
namespace Parma_Polyhedra_Library {
namespace Interfaces {
namespace Java {
template <typename U, typename V>
U
jtype_to_unsigned(const V& value) {
if (value < 0)
throw std::invalid_argument("not an unsigned integer.");
if (sizeof(U) < sizeof(V)) {
if (value > static_cast<V>(std::numeric_limits<U>::max()))
throw std::invalid_argument("unsigned integer out of range.");
}
return value;
}
template <typename T>
inline void
set_ptr(JNIEnv* env, jobject ppl_object,
const T* address, bool to_be_marked) {
const T* ptr = (to_be_marked ? mark(address) : address);
jlong pointer_value = reinterpret_cast<jlong>(ptr);
assert(reinterpret_cast<const T*>(pointer_value) == ptr);
env->SetLongField(ppl_object, cached_FMIDs.PPL_Object_ptr_ID, pointer_value);
}
inline void*
get_ptr(JNIEnv* env, jobject ppl_object) {
jlong pointer_value
= env->GetLongField(ppl_object, cached_FMIDs.PPL_Object_ptr_ID);
void* ptr = reinterpret_cast<void*>(pointer_value);
assert(reinterpret_cast<jlong>(ptr) == pointer_value);
return unmark(ptr);
}
inline bool
is_java_marked(JNIEnv* env, jobject ppl_object) {
jlong pointer_value
= env->GetLongField(ppl_object, cached_FMIDs.PPL_Object_ptr_ID);
const void* ptr = reinterpret_cast<const void*>(pointer_value);
assert(reinterpret_cast<jlong>(ptr) == pointer_value);
return marked(ptr);
}
inline void
set_coefficient(JNIEnv* env, jobject dst, jobject src) {
jobject src_bi
= env->GetObjectField(src, cached_FMIDs.Coefficient_value_ID);
env->SetObjectField(dst, cached_FMIDs.Coefficient_value_ID, src_bi);
}
inline void
set_by_reference(JNIEnv* env, jobject by_ref_dst, jobject src) {
env->SetObjectField(by_ref_dst,
cached_FMIDs.By_Reference_obj_ID,
src);
}
inline jobject
get_by_reference(JNIEnv* env, jobject by_reference) {
return env->GetObjectField(by_reference, cached_FMIDs.By_Reference_obj_ID);
}
template <typename R>
jobject
build_linear_expression(JNIEnv* env, const R& r) {
jobject j_ret;
PPL_DIRTY_TEMP_COEFFICIENT(coefficient);
dimension_type varid = 0;
dimension_type space_dimension = r.space_dimension();
while (varid < space_dimension
&& (coefficient = r.coefficient(Variable(varid))) == 0)
++varid;
if (varid >= space_dimension) {
jobject j_coefficient_zero = build_java_coeff(env, Coefficient(0));
j_ret = env->NewObject(cached_classes.Linear_Expression_Coefficient,
cached_FMIDs.Linear_Expression_Coefficient_init_ID,
j_coefficient_zero);
CHECK_RESULT_THROW(env, j_ret);
}
else {
jmethodID coeff_var_init_ID
= cached_FMIDs.Linear_Expression_Times_init_from_coeff_var_ID;
jobject j_coefficient = build_java_coeff(env, coefficient);
jobject j_variable = build_java_variable(env, Variable(varid));
jclass j_le_times_class = cached_classes.Linear_Expression_Times;
jobject j_coeff_var = env->NewObject(j_le_times_class,
coeff_var_init_ID,
j_coefficient, j_variable);
CHECK_EXCEPTION_THROW(env);
j_ret = j_coeff_var;
while (true) {
++varid;
while (varid < space_dimension
&& (coefficient = r.coefficient(Variable(varid))) == 0)
++varid;
if (varid >= space_dimension)
break;
else {
j_coefficient = build_java_coeff(env, coefficient);
j_variable = build_java_variable(env, Variable(varid));
j_coeff_var = env->NewObject(j_le_times_class,
coeff_var_init_ID,
j_coefficient, j_variable);
CHECK_EXCEPTION_THROW(env);
j_ret = env->CallObjectMethod(j_ret,
cached_FMIDs.Linear_Expression_sum_ID,
j_coeff_var);
CHECK_EXCEPTION_THROW(env);
}
}
}
return j_ret;
}
inline Variable
build_cxx_variable(JNIEnv* env, jobject j_var) {
return Variable(env->GetIntField(j_var, cached_FMIDs.Variable_varid_ID));
}
inline jobject
build_java_variable(JNIEnv* env, const Variable var) {
jlong j_var_id = var.id();
jobject ret = env->NewObject(cached_classes.Variable,
cached_FMIDs.Variable_init_ID,
j_var_id);
CHECK_RESULT_THROW(env, ret);
return ret;
}
inline Coefficient
build_cxx_coeff(JNIEnv* env, jobject j_coeff) {
jstring bi_string
= (jstring) env->CallObjectMethod(j_coeff,
cached_FMIDs.Coefficient_toString_ID);
CHECK_EXCEPTION_THROW(env);
const char *nativeString = env->GetStringUTFChars(bi_string, 0);
CHECK_RESULT_THROW(env, nativeString);
PPL_DIRTY_TEMP_COEFFICIENT(ppl_coeff);
ppl_coeff = Coefficient(nativeString);
env->ReleaseStringUTFChars(bi_string, nativeString);
return ppl_coeff;
}
inline jobject
build_java_coeff(JNIEnv* env, const Coefficient& ppl_coeff) {
std::ostringstream s;
s << ppl_coeff;
std::string str = s.str();
jstring coeff_string = env->NewStringUTF(str.c_str());
CHECK_RESULT_THROW(env, coeff_string);
jobject ret = env->NewObject(cached_classes.Coefficient,
cached_FMIDs.Coefficient_init_from_String_ID,
coeff_string);
CHECK_RESULT_THROW(env, ret);
return ret;
}
template <typename System, typename Elem_Builder>
System
build_cxx_system(JNIEnv* env, jobject j_iterable, Elem_Builder build_cxx_elem) {
// Get the iterator.
jobject j_iter
= env->CallObjectMethod(j_iterable, cached_FMIDs.System_iterator_ID);
CHECK_EXCEPTION_THROW(env);
// Get the iterator method IDs.
jmethodID has_next_mID = cached_FMIDs.System_Iterator_has_next_ID;
jmethodID next_mID = cached_FMIDs.System_Iterator_next_ID;
// Initialize an empty system.
System cxx_sys;
jobject j_element;
jboolean has_next_value = env->CallBooleanMethod(j_iter, has_next_mID);
CHECK_EXCEPTION_ASSERT(env);
while (has_next_value) {
j_element = env->CallObjectMethod(j_iter, next_mID);
CHECK_EXCEPTION_ASSERT(env);
cxx_sys.insert(build_cxx_elem(env, j_element));
has_next_value = env->CallBooleanMethod(j_iter, has_next_mID);
CHECK_EXCEPTION_ASSERT(env);
}
return cxx_sys;
}
inline Congruence_System
build_cxx_congruence_system(JNIEnv* env, jobject j_iterable) {
return
build_cxx_system<Congruence_System>(env, j_iterable, build_cxx_congruence);
}
inline Constraint_System
build_cxx_constraint_system(JNIEnv* env, jobject j_iterable) {
return
build_cxx_system<Constraint_System>(env, j_iterable, build_cxx_constraint);
}
inline Generator_System
build_cxx_generator_system(JNIEnv* env, jobject j_iterable) {
return
build_cxx_system<Generator_System>(env, j_iterable, build_cxx_generator);
}
inline Grid_Generator_System
build_cxx_grid_generator_system(JNIEnv* env, jobject j_iterable) {
return build_cxx_system<Grid_Generator_System> (env, j_iterable,
build_cxx_grid_generator);
}
} // namespace Java
} // namespace Interfaces
} // namespace Parma_Polyhedra_Library
#endif // !defined(PPL_ppl_java_common_inlines_hh)
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