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116 lines (101 loc) · 4.18 KB
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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 "./arrow_types.h"
#include <arrow/compute/api_scalar.h>
#include <arrow/compute/exec/expression.h>
namespace compute = ::arrow::compute;
std::shared_ptr<compute::FunctionOptions> make_compute_options(std::string func_name,
cpp11::list options);
// [[arrow::export]]
bool compute___expr__equals(const std::shared_ptr<compute::Expression>& lhs,
const std::shared_ptr<compute::Expression>& rhs) {
return lhs->Equals(*rhs);
}
// [[arrow::export]]
std::shared_ptr<compute::Expression> compute___expr__call(std::string func_name,
cpp11::list argument_list,
cpp11::list options) {
std::vector<compute::Expression> arguments;
for (SEXP argument : argument_list) {
auto argument_ptr = cpp11::as_cpp<std::shared_ptr<compute::Expression>>(argument);
arguments.push_back(*argument_ptr);
}
auto options_ptr = make_compute_options(func_name, options);
return std::make_shared<compute::Expression>(
compute::call(std::move(func_name), std::move(arguments), std::move(options_ptr)));
}
// [[arrow::export]]
bool compute___expr__is_field_ref(const std::shared_ptr<compute::Expression>& x) {
return x->field_ref() != nullptr;
}
// [[arrow::export]]
std::string compute___expr__get_field_ref_name(
const std::shared_ptr<compute::Expression>& x) {
if (auto field_ref = x->field_ref()) {
// Exclude nested field refs because we only use this to determine if we have simple
// field refs
if (!field_ref->IsNested()) {
return *field_ref->name();
}
}
return "";
}
// [[arrow::export]]
std::shared_ptr<compute::Expression> compute___expr__field_ref(std::string name) {
return std::make_shared<compute::Expression>(compute::field_ref(std::move(name)));
}
// [[arrow::export]]
std::shared_ptr<compute::Expression> compute___expr__nested_field_ref(
const std::shared_ptr<compute::Expression>& x, std::string name) {
if (auto field_ref = x->field_ref()) {
std::vector<arrow::FieldRef> ref_vec;
if (field_ref->IsNested()) {
ref_vec = *field_ref->nested_refs();
} else {
// There's just one
ref_vec.push_back(*field_ref);
}
// Add the new ref
ref_vec.push_back(arrow::FieldRef(std::move(name)));
return std::make_shared<compute::Expression>(
compute::field_ref(arrow::FieldRef{std::move(ref_vec)}));
} else {
cpp11::stop("'x' must be a FieldRef Expression");
}
}
// [[arrow::export]]
std::shared_ptr<compute::Expression> compute___expr__scalar(
const std::shared_ptr<arrow::Scalar>& x) {
return std::make_shared<compute::Expression>(compute::literal(std::move(x)));
}
// [[arrow::export]]
std::string compute___expr__ToString(const std::shared_ptr<compute::Expression>& x) {
return x->ToString();
}
// [[arrow::export]]
std::shared_ptr<arrow::DataType> compute___expr__type(
const std::shared_ptr<compute::Expression>& x,
const std::shared_ptr<arrow::Schema>& schema) {
auto bound = ValueOrStop(x->Bind(*schema));
return bound.type()->GetSharedPtr();
}
// [[arrow::export]]
arrow::Type::type compute___expr__type_id(const std::shared_ptr<compute::Expression>& x,
const std::shared_ptr<arrow::Schema>& schema) {
auto bound = ValueOrStop(x->Bind(*schema));
return bound.type()->id();
}