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1 | // Licensed to the Apache Software Foundation (ASF) under one |
2 | // or more contributor license agreements. See the NOTICE file | |
3 | // distributed with this work for additional information | |
4 | // regarding copyright ownership. The ASF licenses this file | |
5 | // to you under the Apache License, Version 2.0 (the | |
6 | // "License"); you may not use this file except in compliance | |
7 | // with the License. You may obtain a copy of the License at | |
8 | // | |
9 | // http://www.apache.org/licenses/LICENSE-2.0 | |
10 | // | |
11 | // Unless required by applicable law or agreed to in writing, software | |
12 | // distributed under the License is distributed on an "AS IS" BASIS, | |
13 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | // See the License for the specific language governing permissions and | |
15 | // limitations under the License. | |
16 | ||
17 | package math | |
18 | ||
19 | import ( | |
20 | "github.com/apache/arrow/go/v6/arrow/array" | |
21 | ) | |
22 | ||
23 | {{$def := .D}} | |
24 | {{with .In}} | |
25 | type {{.Name}}Funcs struct { | |
26 | sum func(a *array.{{.Name}}) {{.Type}} | |
27 | } | |
28 | ||
29 | var ( | |
30 | {{.Name}} {{.Name}}Funcs | |
31 | ) | |
32 | ||
33 | // Sum returns the summation of all elements in a. | |
34 | func (f {{.Name}}Funcs) Sum(a *array.{{.Name}}) {{.Type}} { | |
35 | if a.Len() == 0 { | |
36 | return {{.Type}}(0) | |
37 | } | |
38 | return f.sum(a) | |
39 | } | |
40 | ||
41 | func sum_{{.Type}}_go(a *array.{{.Name}}) {{.Type}} { | |
42 | acc := {{.Type}}(0) | |
43 | for _, v := range a.{{.Name}}Values() { | |
44 | acc += v | |
45 | } | |
46 | return acc | |
47 | } | |
48 | {{end}} |