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,
12# software distributed under the License is distributed on an
13# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14# KIND, either express or implied.  See the License for the
15# specific language governing permissions and limitations
16# under the License.
17
18require "arrow/block-closable"
19
20module Arrow
21  class Loader < GObjectIntrospection::Loader
22    class << self
23      def load
24        super("Arrow", Arrow)
25      end
26    end
27
28    private
29    def post_load(repository, namespace)
30      require_libraries
31      require_extension_library
32      gc_guard
33    end
34
35    def require_libraries
36      require "arrow/column-containable"
37      require "arrow/field-containable"
38      require "arrow/generic-filterable"
39      require "arrow/generic-takeable"
40      require "arrow/record-containable"
41      require "arrow/symbol-values-appendable"
42
43      require "arrow/aggregate-node-options"
44      require "arrow/aggregation"
45      require "arrow/array"
46      require "arrow/array-builder"
47      require "arrow/bigdecimal-extension"
48      require "arrow/binary-dictionary-array-builder"
49      require "arrow/buffer"
50      require "arrow/chunked-array"
51      require "arrow/column"
52      require "arrow/compression-type"
53      require "arrow/csv-loader"
54      require "arrow/csv-read-options"
55      require "arrow/data-type"
56      require "arrow/date32-array"
57      require "arrow/date32-array-builder"
58      require "arrow/date64-array"
59      require "arrow/date64-array-builder"
60      require "arrow/datum"
61      require "arrow/decimal128"
62      require "arrow/decimal128-array"
63      require "arrow/decimal128-array-builder"
64      require "arrow/decimal128-data-type"
65      require "arrow/decimal256"
66      require "arrow/decimal256-array"
67      require "arrow/decimal256-array-builder"
68      require "arrow/decimal256-data-type"
69      require "arrow/dense-union-data-type"
70      require "arrow/dictionary-array"
71      require "arrow/dictionary-data-type"
72      require "arrow/equal-options"
73      require "arrow/expression"
74      require "arrow/field"
75      require "arrow/file-output-stream"
76      require "arrow/file-system"
77      require "arrow/fixed-size-binary-array"
78      require "arrow/fixed-size-binary-array-builder"
79      require "arrow/group"
80      require "arrow/list-array-builder"
81      require "arrow/list-data-type"
82      require "arrow/map-array"
83      require "arrow/map-array-builder"
84      require "arrow/map-data-type"
85      require "arrow/null-array"
86      require "arrow/null-array-builder"
87      require "arrow/path-extension"
88      require "arrow/record"
89      require "arrow/record-batch"
90      require "arrow/record-batch-builder"
91      require "arrow/record-batch-file-reader"
92      require "arrow/record-batch-iterator"
93      require "arrow/record-batch-reader"
94      require "arrow/record-batch-stream-reader"
95      require "arrow/rolling-window"
96      require "arrow/scalar"
97      require "arrow/schema"
98      require "arrow/slicer"
99      require "arrow/sort-key"
100      require "arrow/sort-options"
101      require "arrow/source-node-options"
102      require "arrow/sparse-union-data-type"
103      require "arrow/string-dictionary-array-builder"
104      require "arrow/struct-array"
105      require "arrow/struct-array-builder"
106      require "arrow/struct-data-type"
107      require "arrow/table"
108      require "arrow/table-concatenate-options"
109      require "arrow/table-formatter"
110      require "arrow/table-list-formatter"
111      require "arrow/table-table-formatter"
112      require "arrow/table-loader"
113      require "arrow/table-saver"
114      require "arrow/tensor"
115      require "arrow/time"
116      require "arrow/time32-array"
117      require "arrow/time32-array-builder"
118      require "arrow/time32-data-type"
119      require "arrow/time64-array"
120      require "arrow/time64-array-builder"
121      require "arrow/time64-data-type"
122      require "arrow/timestamp-array"
123      require "arrow/timestamp-array-builder"
124      require "arrow/timestamp-data-type"
125      require "arrow/writable"
126    end
127
128    def require_extension_library
129      require "arrow.so"
130    end
131
132    def gc_guard
133      require "arrow/constructor-arguments-gc-guardable"
134
135      [
136        @base_module::BinaryScalar,
137        @base_module::Buffer,
138        @base_module::DenseUnionScalar,
139        @base_module::FixedSizeBinaryScalar,
140        @base_module::LargeBinaryScalar,
141        @base_module::LargeListScalar,
142        @base_module::LargeStringScalar,
143        @base_module::ListScalar,
144        @base_module::MapScalar,
145        @base_module::SparseUnionScalar,
146        @base_module::StringScalar,
147        @base_module::StructScalar,
148      ].each do |klass|
149        klass.prepend(ConstructorArgumentsGCGuardable)
150      end
151    end
152
153    def load_object_info(info)
154      super
155
156      klass = @base_module.const_get(rubyish_class_name(info))
157      if klass.method_defined?(:close)
158        klass.extend(BlockClosable)
159      end
160    end
161
162    def load_method_info(info, klass, method_name)
163      case klass.name
164      when /Array\z/
165        case method_name
166        when "values"
167          method_name = "values_raw"
168        end
169      end
170
171      case klass.name
172      when /Builder\z/
173        case method_name
174        when "append"
175          return
176        else
177          super
178        end
179      when "Arrow::StringArray"
180        case method_name
181        when "get_value"
182          method_name = "get_raw_value"
183        when "get_string"
184          method_name = "get_value"
185        end
186        super(info, klass, method_name)
187      when "Arrow::Date32Array",
188           "Arrow::Date64Array",
189           "Arrow::Decimal128Array",
190           "Arrow::Decimal256Array",
191           "Arrow::Time32Array",
192           "Arrow::Time64Array",
193           "Arrow::TimestampArray"
194        case method_name
195        when "get_value"
196          method_name = "get_raw_value"
197        end
198        super(info, klass, method_name)
199      when "Arrow::Decimal128", "Arrow::Decimal256"
200        case method_name
201        when "copy"
202          method_name = "dup"
203        end
204        super(info, klass, method_name)
205      when "Arrow::BooleanScalar"
206        case method_name
207        when "value?"
208          method_name = "value"
209        end
210        super(info, klass, method_name)
211      else
212        super
213      end
214    end
215  end
216end
217