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Diffstat (limited to 'src/main')
| -rw-r--r-- | src/main/java/ftbsc/lll/mapper/impl/SRGMapper.java | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/main/java/ftbsc/lll/mapper/impl/SRGMapper.java b/src/main/java/ftbsc/lll/mapper/impl/SRGMapper.java new file mode 100644 index 0000000..156e9d2 --- /dev/null +++ b/src/main/java/ftbsc/lll/mapper/impl/SRGMapper.java @@ -0,0 +1,131 @@ +package ftbsc.lll.mapper.impl; + +import com.google.auto.service.AutoService; +import ftbsc.lll.exceptions.MalformedMappingsException; +import ftbsc.lll.mapper.AbstractMapper; +import ftbsc.lll.mapper.IMapper; +import ftbsc.lll.mapper.tools.data.ClassData; + +import java.util.List; + +/** + * A {@link IMapper} capable of parsing SRG files. + */ +@AutoService(IMapper.class) +public class SRGMapper extends AbstractMapper { + /** + * Checks whether this mapper can process the given lines. + * @param lines the lines to read + * @return whether this type of mapper can process these lines + */ + @Override + public boolean claim(List<String> lines) { + String[] firstLineTokens = lines.get(0).trim().split(" "); + return firstLineTokens.length <= 5 && + (firstLineTokens[0].equals("CL:") + || firstLineTokens[0].equals("MD:") + || firstLineTokens[0].equals("FD:")); + } + + /** + * Populates the {@link IMapper} given the lines, ignoring errors depending on the + * given ignoreErrors flag. + * @param lines the lines to read + * @param ignoreErrors try to ignore errors and keep going + * @throws MalformedMappingsException if an error is encountered and ignoreErrors is false + */ + @Override + public void populate(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException { + for(int i = 0; i < lines.size(); i++) { + String[] tokens = lines.get(i).trim().split(" "); + switch(tokens[0]) { + case "CL:": + if(tokens.length != 3) + break; + this.registerClass(tokens[1], tokens[2]); + continue; + case "MD:": + case "FD:": + if(this.processMemberTokens(tokens)) + continue; + break; + } + if(!ignoreErrors) + throw new MalformedMappingsException(i, "wrong number of space-separated tokens"); + } + } + + /** + * Processes a line, broken up into tokens. + * @param tokens the tokens + * @return whether it was a valid mapping + */ + private boolean processMemberTokens(String[] tokens) { + boolean field; + if(tokens[0].equals("MD:")) { + if(tokens.length != 5) + return false; + field = false; + } else if(tokens[0].equals("FD:")) { + if(tokens.length != 3) + return false; + field = true; + } else return false; + //process parent + String[] split = tokens[1].split("/"); + String memberName = split[split.length - 1]; + String parent = tokens[1].substring(0, tokens[1].length() - split[split.length - 1].length() - 1); + int obfPosition = field ? 2 : 3; + split = tokens[obfPosition].split("/"); + String memberNameObf = split[split.length - 1]; + String parentObf = tokens[obfPosition].substring(0, tokens[obfPosition].length() - split[split.length - 1].length() - 1); + if(field) this.registerMember(parent, parentObf, memberName, memberNameObf, null, null); + else this.registerMember(parent, parentObf, memberName, memberNameObf, tokens[2], tokens[4]); + return true; + } + + /** + * This does nothing as it is never called for this type of mapper. + * @param lines the lines to read + * @param ignoreErrors try to ignore errors and keep going + */ + @Override + protected void processLines(List<String> lines, boolean ignoreErrors) {} + + /** + * Registers a class in the mapper, if it isn't already. + * @param name the name + * @param nameMapped the mapped name + */ + private void registerClass(String name, String nameMapped) { + if(this.mappings.containsKey(name)) + return; + this.mappings.put(name, new ClassData(name, nameMapped)); + this.mappingsInverted.put(nameMapped, new ClassData(nameMapped, name)); + } + + /** + * Registers a class member. The descriptors should be null for fields. + * @param parent the parent's plain internal name + * @param parentMapped the parent's mapped internal name + * @param name the member's plain name + * @param nameMapped the member's mapped name + * @param descriptor the member's plain descriptor, may be null + * @param descriptorMapped the member's mapped descriptor, may be null + */ + private void registerMember(String parent, String parentMapped, String name, String nameMapped, + String descriptor, String descriptorMapped) { + this.registerClass(parent, parentMapped); + ClassData data = this.mappings.get(parent); + ClassData dataReverse = this.mappings.get(data.nameMapped); + if(descriptor == null || descriptorMapped == null) { + //field + data.addField(name, nameMapped); + dataReverse.addField(nameMapped, name); + } else { + //method + data.addMethod(name, nameMapped, descriptor); + dataReverse.addMethod(nameMapped, name, descriptorMapped); + } + } +}
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