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feat(objectionary#976): add DirectivesNumberValue
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src/main/java/org/eolang/jeo/representation/directives/DirectivesNumberBytes.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| * The MIT License (MIT) | ||
| * | ||
| * Copyright (c) 2016-2025 Objectionary.com | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included | ||
| * in all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package org.eolang.jeo.representation.directives; | ||
|
|
||
| import java.util.Iterator; | ||
| import org.eolang.jeo.representation.bytecode.BytecodeValue; | ||
| import org.xembly.Directive; | ||
| import org.xembly.Directives; | ||
|
|
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| public final class DirectivesNumberBytes implements Iterable<Directive> { | ||
|
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| /** | ||
| * Array of hexadecimal characters. | ||
| * Used for converting bytes to hexadecimal. | ||
| * See {@link #bytesToHex(byte[])}. | ||
| */ | ||
| private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray(); | ||
|
|
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| private final Number number; | ||
|
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| public DirectivesNumberBytes(final Number number) { | ||
| this.number = number; | ||
| } | ||
|
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| @Override | ||
| public Iterator<Directive> iterator() { | ||
| return new Directives() | ||
| .add("o") | ||
| .attr("base", "org.eolang.number") | ||
| .append(new DirectivesBytes(this.bytes())) | ||
| .up() | ||
| .iterator(); | ||
| } | ||
|
|
||
| private String bytes() { | ||
| return DirectivesNumberBytes.bytesToHex( | ||
| new BytecodeValue(this.number.doubleValue()).bytes()); | ||
| } | ||
|
|
||
| /** | ||
| * @todo Duplicate! | ||
| */ | ||
| private static String bytesToHex(final byte[] bytes) { | ||
| final String res; | ||
| if (bytes == null || bytes.length == 0) { | ||
| res = "--"; | ||
| } else { | ||
| final int length = bytes.length; | ||
| final char[] hex = new char[length * 3]; | ||
| for (int index = 0; index < length; ++index) { | ||
| final int value = bytes[index] & 0xFF; | ||
| hex[index * 3] = HEX_ARRAY[value >>> 4]; | ||
| hex[index * 3 + 1] = HEX_ARRAY[value & 0x0F]; | ||
| hex[index * 3 + 2] = '-'; | ||
| } | ||
| if (hex.length == 3) { | ||
| res = new String(hex); | ||
| } else { | ||
| res = new String(hex, 0, hex.length - 1); | ||
| } | ||
| } | ||
| return res; | ||
| } | ||
| } |
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81
src/test/java/org/eolang/jeo/representation/directives/DirectivesNumberBytesTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| /* | ||
| * The MIT License (MIT) | ||
| * | ||
| * Copyright (c) 2016-2025 Objectionary.com | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included | ||
| * in all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package org.eolang.jeo.representation.directives; | ||
|
|
||
| import com.jcabi.matchers.XhtmlMatchers; | ||
| import java.util.stream.Stream; | ||
| import org.hamcrest.MatcherAssert; | ||
| import org.junit.jupiter.params.ParameterizedTest; | ||
| import org.junit.jupiter.params.provider.Arguments; | ||
| import org.junit.jupiter.params.provider.MethodSource; | ||
| import org.xembly.ImpossibleModificationException; | ||
| import org.xembly.Xembler; | ||
|
|
||
| /** | ||
| * Test case for {@link DirectivesNumberBytes}. | ||
| * @since 0.8 | ||
| */ | ||
| final class DirectivesNumberBytesTest { | ||
|
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| @ParameterizedTest | ||
| @MethodSource("numbers") | ||
| void convertsDifferentNumbersToBytes( | ||
| final Number value, final String bytes | ||
| ) throws ImpossibleModificationException { | ||
| final String xml = new Xembler(new DirectivesNumberBytes(value)).xml(); | ||
| MatcherAssert.assertThat( | ||
| String.format( | ||
| "We expect that number will be converted to the correct XMIR, but got: %n%s%n", | ||
| xml | ||
| ), | ||
| xml, | ||
| XhtmlMatchers.hasXPaths( | ||
| "/o[@base='org.eolang.number']", | ||
| String.format( | ||
| "/o[@base='org.eolang.number']/o[@base='org.eolang.bytes' and text()='%s']", | ||
| bytes | ||
| ) | ||
| ) | ||
| ); | ||
| } | ||
|
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| /** | ||
| * Provide numbers. | ||
| * @return Numbers. | ||
| */ | ||
| static Stream<Arguments> numbers() { | ||
| final String same = "3F-F0-00-00-00-00-00-00"; | ||
| return Stream.of( | ||
| Arguments.of(1, same), | ||
| Arguments.of(1L, same), | ||
| Arguments.of(1.0, same), | ||
| Arguments.of(1.0f, same), | ||
| Arguments.of(1.0d, same), | ||
| Arguments.of((byte) 1, same), | ||
| Arguments.of((short) 1, same) | ||
| ); | ||
| } | ||
|
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||
|
|
||
| } |
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