Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Adds Mappings class for managing class and method mappings. This make…
…s NameTable.Factory no longer necessary. Change on 2016/11/03 by kstanger <kstanger@google.com> ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=138094849
- Loading branch information
Showing
10 changed files
with
154 additions
and
148 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
120 changes: 120 additions & 0 deletions
120
translator/src/main/java/com/google/devtools/j2objc/util/Mappings.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Original file line | Diff line number | Diff line change |
|---|---|---|---|
| @@ -0,0 +1,120 @@ | |||
| /* | |||
| * Licensed 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. | |||
| */ | |||
|
|
|||
| package com.google.devtools.j2objc.util; | |||
|
|
|||
| import com.google.common.annotations.VisibleForTesting; | |||
| import com.google.common.collect.ImmutableMap; | |||
| import com.google.devtools.j2objc.J2ObjC; | |||
| import java.io.IOException; | |||
| import java.io.InputStream; | |||
| import java.util.Enumeration; | |||
| import java.util.HashMap; | |||
| import java.util.Map; | |||
| import java.util.Properties; | |||
|
|
|||
| /** | |||
| * Manages class and method name mappings. | |||
| */ | |||
| public class Mappings { | |||
|
|
|||
| /** | |||
| * We convert all the String constructor invocations to factory method | |||
| * invocations because we want to avoid calling [NSString alloc]. | |||
| */ | |||
| public static final Map<String, String> STRING_CONSTRUCTOR_TO_METHOD_MAPPINGS = | |||
| ImmutableMap.<String, String>builder() | |||
| .put("java.lang.String.String()V", "string") | |||
| .put("java.lang.String.String(Ljava/lang/String;)V", "stringWithString:") | |||
| .put("java.lang.String.String([B)V", "java_stringWithBytes:") | |||
| .put("java.lang.String.String([BLjava/lang/String;)V", "java_stringWithBytes:charsetName:") | |||
| .put("java.lang.String.String([BLjava/nio/charset/Charset;)V", | |||
| "java_stringWithBytes:charset:") | |||
| .put("java.lang.String.String([BI)V", "java_stringWithBytes:hibyte:") | |||
| .put("java.lang.String.String([BII)V", "java_stringWithBytes:offset:length:") | |||
| .put("java.lang.String.String([BIII)V", "java_stringWithBytes:hibyte:offset:length:") | |||
| .put("java.lang.String.String([BIILjava/lang/String;)V", | |||
| "java_stringWithBytes:offset:length:charsetName:") | |||
| .put("java.lang.String.String([BIILjava/nio/charset/Charset;)V", | |||
| "java_stringWithBytes:offset:length:charset:") | |||
| .put("java.lang.String.String([C)V", "java_stringWithCharacters:") | |||
| .put("java.lang.String.String([CII)V", "java_stringWithCharacters:offset:length:") | |||
| .put("java.lang.String.String([III)V", "java_stringWithInts:offset:length:") | |||
| .put("java.lang.String.String(II[C)V", "java_stringWithOffset:length:characters:") | |||
| .put("java.lang.String.String(Ljava/lang/StringBuffer;)V", | |||
| "java_stringWithJavaLangStringBuffer:") | |||
| .put("java.lang.String.String(Ljava/lang/StringBuilder;)V", | |||
| "java_stringWithJavaLangStringBuilder:") | |||
| .build(); | |||
|
|
|||
| private static final String JRE_MAPPINGS_FILE = "JRE.mappings"; | |||
|
|
|||
| private final Map<String, String> classMappings = new HashMap<>(); | |||
| private final Map<String, String> methodMappings = new HashMap<>(); | |||
| { | |||
| methodMappings.putAll(STRING_CONSTRUCTOR_TO_METHOD_MAPPINGS); | |||
| } | |||
|
|
|||
| public ImmutableMap<String, String> getClassMappings() { | |||
| return ImmutableMap.copyOf(classMappings); | |||
| } | |||
|
|
|||
| public ImmutableMap<String, String> getMethodMappings() { | |||
| return ImmutableMap.copyOf(methodMappings); | |||
| } | |||
|
|
|||
| @VisibleForTesting | |||
| void addClass(String key, String name) { | |||
| classMappings.put(key, name); | |||
| } | |||
|
|
|||
| public void addMappingsFiles(String[] filenames) throws IOException { | |||
| for (String filename : filenames) { | |||
| if (!filename.isEmpty()) { | |||
| addMappingsProperties(FileUtil.loadProperties(filename)); | |||
| } | |||
| } | |||
| } | |||
|
|
|||
| public void addJreMappings() throws IOException { | |||
| InputStream stream = J2ObjC.class.getResourceAsStream(JRE_MAPPINGS_FILE); | |||
| addMappingsProperties(FileUtil.loadProperties(stream)); | |||
| } | |||
|
|
|||
| private void addMappingsProperties(Properties mappings) { | |||
| Enumeration<?> keyIterator = mappings.propertyNames(); | |||
| while (keyIterator.hasMoreElements()) { | |||
| String key = (String) keyIterator.nextElement(); | |||
| if (key.indexOf('(') > 0) { | |||
| // All method mappings have parentheses characters, classes don't. | |||
| String iosMethod = mappings.getProperty(key); | |||
| addMapping(methodMappings, key, iosMethod, "method mapping"); | |||
| } else { | |||
| String iosClass = mappings.getProperty(key); | |||
| addMapping(classMappings, key, iosClass, "class mapping"); | |||
| } | |||
| } | |||
| } | |||
|
|
|||
| /** | |||
| * Adds a class, method or package-prefix property to its map, reporting an error | |||
| * if that mapping was previously specified. | |||
| */ | |||
| private static void addMapping(Map<String, String> map, String key, String value, String kind) { | |||
| String oldValue = map.put(key, value); | |||
| if (oldValue != null && !oldValue.equals(value)) { | |||
| ErrorUtil.error(kind + " redefined; was \"" + oldValue + ", now " + value); | |||
| } | |||
| } | |||
| } | |||
Oops, something went wrong.