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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include "gandiva/expression_registry.h"
#include "gandiva/function_registry.h"
#include "gandiva/llvm_types.h"
namespace gandiva {
ExpressionRegistry::ExpressionRegistry() {
function_registry_.reset(new FunctionRegistry());
}
ExpressionRegistry::~ExpressionRegistry() {}
// to be used only to create function_signature_start
ExpressionRegistry::FunctionSignatureIterator::FunctionSignatureIterator(
native_func_iterator_type nf_it, native_func_iterator_type nf_it_end)
: native_func_it_{nf_it},
native_func_it_end_{nf_it_end},
func_sig_it_{&(nf_it->signatures().front())} {}
// to be used only to create function_signature_end
ExpressionRegistry::FunctionSignatureIterator::FunctionSignatureIterator(
func_sig_iterator_type fs_it)
: native_func_it_{nullptr}, native_func_it_end_{nullptr}, func_sig_it_{fs_it} {}
const ExpressionRegistry::FunctionSignatureIterator
ExpressionRegistry::function_signature_begin() {
return FunctionSignatureIterator(function_registry_->begin(),
function_registry_->end());
}
const ExpressionRegistry::FunctionSignatureIterator
ExpressionRegistry::function_signature_end() const {
return FunctionSignatureIterator(&(*(function_registry_->back()->signatures().end())));
}
bool ExpressionRegistry::FunctionSignatureIterator::operator!=(
const FunctionSignatureIterator& func_sign_it) {
return func_sign_it.func_sig_it_ != this->func_sig_it_;
}
FunctionSignature ExpressionRegistry::FunctionSignatureIterator::operator*() {
return *func_sig_it_;
}
ExpressionRegistry::func_sig_iterator_type ExpressionRegistry::FunctionSignatureIterator::
operator++(int increment) {
++func_sig_it_;
// point func_sig_it_ to first signature of next nativefunction if func_sig_it_ is
// pointing to end
if (func_sig_it_ == &(*native_func_it_->signatures().end())) {
++native_func_it_;
if (native_func_it_ == native_func_it_end_) { // last native function
return func_sig_it_;
}
func_sig_it_ = &(native_func_it_->signatures().front());
}
return func_sig_it_;
}
static void AddArrowTypesToVector(arrow::Type::type type, DataTypeVector& vector);
static DataTypeVector InitSupportedTypes() {
DataTypeVector data_type_vector;
llvm::LLVMContext llvm_context;
LLVMTypes llvm_types(llvm_context);
auto supported_arrow_types = llvm_types.GetSupportedArrowTypes();
for (auto& type_id : supported_arrow_types) {
AddArrowTypesToVector(type_id, data_type_vector);
}
return data_type_vector;
}
DataTypeVector ExpressionRegistry::supported_types_ = InitSupportedTypes();
static void AddArrowTypesToVector(arrow::Type::type type, DataTypeVector& vector) {
switch (type) {
case arrow::Type::type::BOOL:
vector.push_back(arrow::boolean());
break;
case arrow::Type::type::UINT8:
vector.push_back(arrow::uint8());
break;
case arrow::Type::type::INT8:
vector.push_back(arrow::int8());
break;
case arrow::Type::type::UINT16:
vector.push_back(arrow::uint16());
break;
case arrow::Type::type::INT16:
vector.push_back(arrow::int16());
break;
case arrow::Type::type::UINT32:
vector.push_back(arrow::uint32());
break;
case arrow::Type::type::INT32:
vector.push_back(arrow::int32());
break;
case arrow::Type::type::UINT64:
vector.push_back(arrow::uint64());
break;
case arrow::Type::type::INT64:
vector.push_back(arrow::int64());
break;
case arrow::Type::type::HALF_FLOAT:
vector.push_back(arrow::float16());
break;
case arrow::Type::type::FLOAT:
vector.push_back(arrow::float32());
break;
case arrow::Type::type::DOUBLE:
vector.push_back(arrow::float64());
break;
case arrow::Type::type::STRING:
vector.push_back(arrow::utf8());
break;
case arrow::Type::type::BINARY:
vector.push_back(arrow::binary());
break;
case arrow::Type::type::DATE32:
vector.push_back(arrow::date32());
break;
case arrow::Type::type::DATE64:
vector.push_back(arrow::date64());
break;
case arrow::Type::type::TIMESTAMP:
vector.push_back(arrow::timestamp(arrow::TimeUnit::SECOND));
vector.push_back(arrow::timestamp(arrow::TimeUnit::MILLI));
vector.push_back(arrow::timestamp(arrow::TimeUnit::NANO));
vector.push_back(arrow::timestamp(arrow::TimeUnit::MICRO));
break;
case arrow::Type::type::TIME32:
vector.push_back(arrow::time32(arrow::TimeUnit::SECOND));
vector.push_back(arrow::time32(arrow::TimeUnit::MILLI));
break;
case arrow::Type::type::TIME64:
vector.push_back(arrow::time64(arrow::TimeUnit::MICRO));
vector.push_back(arrow::time64(arrow::TimeUnit::NANO));
break;
case arrow::Type::type::NA:
vector.push_back(arrow::null());
break;
case arrow::Type::type::DECIMAL:
vector.push_back(arrow::decimal(38, 0));
break;
case arrow::Type::type::INTERVAL_MONTHS:
vector.push_back(arrow::month_interval());
break;
case arrow::Type::type::INTERVAL_DAY_TIME:
vector.push_back(arrow::day_time_interval());
break;
default:
// Unsupported types. test ensures that
// when one of these are added build breaks.
DCHECK(false);
}
}
std::vector<std::shared_ptr<FunctionSignature>> GetRegisteredFunctionSignatures() {
ExpressionRegistry registry;
std::vector<std::shared_ptr<FunctionSignature>> signatures;
for (auto iter = registry.function_signature_begin();
iter != registry.function_signature_end(); iter++) {
signatures.push_back(std::make_shared<FunctionSignature>(
(*iter).base_name(), (*iter).param_types(), (*iter).ret_type()));
}
return signatures;
}
} // namespace gandiva
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