forked from apache/arrow
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathexpression.cpp
More file actions
116 lines (101 loc) · 4.18 KB
/
Copy pathexpression.cpp
File metadata and controls
116 lines (101 loc) · 4.18 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
// 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();
}