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feat: rewrote the mapper api to make more sense

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zaaarf 2023-09-01 12:09:26 +02:00
parent ea030e54b9
commit fa6c73faf0
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12 changed files with 221 additions and 249 deletions
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4
src/main/java/ftbsc/lll/exceptions/MappingNotFoundException.java
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@ -1,9 +1,9 @@
package ftbsc.lll.exceptions;
import ftbsc.lll.mapper.IMapper;
import ftbsc.lll.mapper.IMappingFormat;
/**
* Thrown upon failure to find the requested mapping within a loaded {@link IMapper}.
* Thrown upon failure to find the requested mapping within a loaded {@link IMappingFormat}.
*/
public class MappingNotFoundException extends RuntimeException {

66
src/main/java/ftbsc/lll/mapper/AbstractMapper.java
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@ -1,66 +0,0 @@
package ftbsc.lll.mapper;
import ftbsc.lll.exceptions.MappingNotFoundException;
import ftbsc.lll.mapper.tools.data.ClassData;
import ftbsc.lll.mapper.tools.data.FieldData;
import ftbsc.lll.mapper.tools.data.MethodData;
import java.util.HashMap;
import java.util.Map;
/**
* A default implementation of {@link IMapper} meant to
* recycle as much code as possible.
*/
public abstract class AbstractMapper implements IMapper {
/**
* A {@link Map} tying each plain class name to its class data.
*/
protected final Map<String, ClassData> mappings = new HashMap<>();
@Override
public void reset() {
this.mappings.clear();
}
@Override
public IMapper getInverted() {
AbstractMapper inverted = newInstance();
this.mappings.forEach((name, data) -> {
ClassData reverse = data.generateReverseMappings(this);
inverted.mappings.put(data.nameMapped, reverse);
});
return inverted;
}
/**
* Creates a new instance of this type of mapper.
* @return the new, empty instance
*/
protected abstract AbstractMapper newInstance();
@Override
public ClassData getClassData(String name) throws MappingNotFoundException {
ClassData data = this.mappings.get(name.replace('.', '/'));
if(data == null)
throw new MappingNotFoundException("class", name);
else return data;
}
@Override
public MethodData getMethodData(String parent, String name, String descriptor) throws MappingNotFoundException {
return this.getClassData(parent).mapMethod(name, descriptor);
}
@Override
public FieldData getFieldData(String parent, String name) throws MappingNotFoundException {
return this.getClassData(parent).mapField(name);
}
@Override
public Map<String, ClassData> getRawMappings() {
return this.mappings;
}
}

86
src/main/java/ftbsc/lll/mapper/IMapper.java
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@ -1,86 +0,0 @@
package ftbsc.lll.mapper;
import ftbsc.lll.exceptions.MalformedMappingsException;
import ftbsc.lll.exceptions.MappingNotFoundException;
import ftbsc.lll.mapper.tools.data.ClassData;
import ftbsc.lll.mapper.tools.data.FieldData;
import ftbsc.lll.mapper.tools.data.MethodData;
import java.util.*;
/**
* The shared interface between all mappers.
*/
public interface IMapper {
/**
* 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
*/
boolean claim(List<String> lines);
/**
* Defines a priority for this implementation: the higher the number,
* the higher the priority.
* This is used to resolve conflicts when multiple mappers attempt to
* {@link #claim(List) claim} a given mapping file.
* @return the priority
*/
default int priority() {
return 0;
}
/**
* 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
*/
void populate(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException;
/**
* Builds an {@link IMapper} that functions in reverse to this one (i.e. one that
* considers as "mapped" what this one considers plain, and vice versa).
* @return the inverted mapper
*/
IMapper getInverted();
/**
* Completely resets the mapper, clearing it of all existing mappings.
*/
void reset();
/**
* Gets the {@link ClassData}
* @param name the plain internal name of the desired class
* @return the obfuscated name of the class
* @throws MappingNotFoundException if no mapping is found
*/
ClassData getClassData(String name) throws MappingNotFoundException;
/**
* Gets the obfuscated name of a class member (field or method).
* @param parent the plain internal name of the parent class
* @param name the field name
* @param descriptor the descriptor of the member (only for methods)
* @return the obfuscated name of the given member
* @throws MappingNotFoundException if no mapping is found
*/
MethodData getMethodData(String parent, String name, String descriptor) throws MappingNotFoundException;
/**
* Gets the obfuscated name of a class member (field or method).
* @param parent the plain internal name of the parent class
* @param name the field name
* @return the obfuscated name of the given member
* @throws MappingNotFoundException if no mapping is found
*/
FieldData getFieldData(String parent, String name) throws MappingNotFoundException;
/**
* Fetches the "raw mappings" from an {@link IMapper}.
* @return a map tying each {@link ClassData} to the class' plain name
*/
Map<String, ClassData> getRawMappings();
}

49
src/main/java/ftbsc/lll/mapper/IMappingFormat.java Normal file
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@ -0,0 +1,49 @@
package ftbsc.lll.mapper;
import ftbsc.lll.exceptions.MalformedMappingsException;
import ftbsc.lll.mapper.tools.Mapper;
import java.util.List;
/**
* The shared interface between all mappers.
*/
public interface IMappingFormat {
/**
* 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
*/
boolean claim(List<String> lines);
/**
* Defines a priority for this implementation: the higher the number,
* the higher the priority.
* This is used to resolve conflicts when multiple mappers attempt to
* {@link #claim(List) claim} a given mapping file.
* @return the priority
*/
default int priority() {
return 0;
}
/**
* Creates a {@link Mapper} given the lines, ignoring errors depending on the given flag.
* @param lines the lines to read
* @param ignoreErrors try to ignore errors and keep going
* @return the {@link Mapper}
* @throws MalformedMappingsException if an error is encountered and ignoreErrors is false
*/
Mapper getMapper(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException;
/**
* Creates a {@link Mapper} given the lines, ignoring errors depending on the given flag, and
* returns its inverted form.
* @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
*/
default Mapper getInvertedMapper(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
return this.getMapper(lines, ignoreErrors).getInverted();
}
}

12
src/main/java/ftbsc/lll/mapper/MapperProvider.java
View file

@ -12,7 +12,7 @@ import java.util.stream.Stream;
/**
* The main class of the mapper library. It loads all the
* valid {@link IMapper}s and gets information from them.
* valid {@link IMappingFormat}s and gets information from them.
*/
public class MapperProvider {
/**
@ -30,14 +30,14 @@ public class MapperProvider {
/**
* A {@link Set} containing all the loaded mapper classes.
*/
private Set<Class<? extends IMapper>> loadedMappers = null;
private Set<Class<? extends IMappingFormat>> loadedMappers = null;
/**
* Loads the mapper classes into a {@link Set}.
*/
private void loadMappers() {
this.loadedMappers = new HashSet<>();
for(IMapper mapper: ServiceLoader.load(IMapper.class))
for(IMappingFormat mapper: ServiceLoader.load(IMappingFormat.class))
this.loadedMappers.add(mapper.getClass());
if(this.loadedMappers.isEmpty())
throw new RuntimeException("Something went wrong: no mapper types were loaded successfully!");
@ -48,9 +48,9 @@ public class MapperProvider {
* attempts to load the resource at given location and to populate a mapper with
* its data.
* @param data the file as a list of strings
* @return a {@link IMapper} (populating it is left to the user)
* @return a {@link IMappingFormat} (populating it is left to the user)
*/
public static IMapper getMapper(List<String> data) {
public static IMappingFormat getMapper(List<String> data) {
if(getInstance().loadedMappers == null)
getInstance().loadMappers();
return getInstance().loadedMappers.stream()
@ -60,7 +60,7 @@ public class MapperProvider {
} catch(ReflectiveOperationException ignored) {}
return Stream.empty();
}).filter(m -> m.claim(data))
.max(Comparator.comparingInt(IMapper::priority))
.max(Comparator.comparingInt(IMappingFormat::priority))
.orElseThrow(InvalidResourceException::new);
}

28
src/main/java/ftbsc/lll/mapper/impl/MultiMapper.java
View file

@ -2,9 +2,9 @@ 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.IMappingFormat;
import ftbsc.lll.mapper.MapperProvider;
import ftbsc.lll.mapper.tools.Mapper;
import ftbsc.lll.mapper.tools.MappingUtils;
import ftbsc.lll.mapper.tools.data.ClassData;
@ -15,21 +15,22 @@ import java.util.List;
* Special mapper type that actually resolves to an ordered
* sequence of mappers applied one after the other.
*/
@AutoService(IMapper.class)
public class MultiMapper extends AbstractMapper {
@AutoService(IMappingFormat.class)
public class MultiMapper implements IMappingFormat {
@Override
public boolean claim(List<String> lines) {
return lines.get(0).equals("lll multimapper");
}
@Override
public void populate(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
List<IMapper> mapperList = new ArrayList<>();
public Mapper getMapper(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
Mapper result = new Mapper();
List<Mapper> mapperList = new ArrayList<>();
for(int i = 1; i < lines.size(); i++) {
List<String> data = MapperProvider.fetchFromLocalOrRemote(lines.get(i));
IMapper mapper = MapperProvider.getMapper(data);
mapper.populate(data, ignoreErrors);
mapperList.add(mapper);
IMappingFormat format = MapperProvider.getMapper(data);
mapperList.add(format.getMapper(data, ignoreErrors));
}
mapperList.get(0).getRawMappings().forEach((name, data) -> {
@ -41,7 +42,7 @@ public class MultiMapper extends AbstractMapper {
data.getMethods().forEach((signature, methodData) -> {
for(int i = 1; i < mapperList.size(); i++) {
IMapper mapper = mapperList.get(i);
Mapper mapper = mapperList.get(i);
methodData = mapper.getMethodData(methodData.parentClass.nameMapped, methodData.nameMapped,
MappingUtils.mapMethodDescriptor(methodData.signature.descriptor, mapper, false));
}
@ -54,12 +55,9 @@ public class MultiMapper extends AbstractMapper {
sumData.addField(fieldName, fieldData.nameMapped, fieldData.descriptor);
});
this.mappings.put(sumData.name, sumData);
result.getRawMappings().put(sumData.name, sumData);
});
}
@Override
protected AbstractMapper newInstance() {
return new MultiMapper();
return result;
}
}

80
src/main/java/ftbsc/lll/mapper/impl/SRGMapper.java
View file

@ -2,27 +2,17 @@ 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.IMappingFormat;
import ftbsc.lll.mapper.tools.Mapper;
import ftbsc.lll.mapper.tools.data.ClassData;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* A {@link IMapper} capable of parsing SRG mappings.
* A {@link IMappingFormat} capable of parsing SRG mappings.
*/
@AutoService(IMapper.class)
public class SRGMapper extends AbstractMapper {
/**
* A {@link Map} tying each obfuscated name to its class data.
* Done this way because SRG files provide mapped descriptors in advance,
* so we can populate this right a way in a less expensive way.
*/
private final Map<String, ClassData> mappingsInverted = new HashMap<>();
@AutoService(IMappingFormat.class)
public class SRGMapper implements IMappingFormat {
@Override
public boolean claim(List<String> lines) {
@ -33,33 +23,47 @@ public class SRGMapper extends AbstractMapper {
|| firstLineTokens[0].equals("FD:"));
}
@Override
public void populate(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
/**
* Builds the two mappers, and returns one of the two depending on the flag.
* Since the SRG format contains descriptor mappings, it's possible to process
* this right away.
* @param lines the lines to read
* @param ignoreErrors try to ignore errors and keep going
* @param inverted whether it should return the inverted one
* @return the {@link Mapper}, inverted depending on the flag
* @throws MalformedMappingsException if an error is encountered and ignoreErrors is false
*/
protected Mapper buildMapper(List<String> lines, boolean ignoreErrors, boolean inverted) throws MalformedMappingsException {
Mapper mapper = new Mapper();
Mapper invertedMapper = new Mapper();
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]);
this.registerClass(mapper, invertedMapper, tokens[1], tokens[2]);
continue;
case "MD:":
case "FD:":
if(this.processMemberTokens(tokens))
if(this.processMemberTokens(mapper, invertedMapper, tokens))
continue;
break;
}
if(!ignoreErrors)
throw new MalformedMappingsException(i, "wrong number of space-separated tokens");
}
return inverted ? invertedMapper : mapper;
}
/**
* Processes a line, broken up into tokens.
* @param mapper the {@link Mapper} with normal mappings
* @param invertedMapper the {@link Mapper} with inverted mappings
* @param tokens the tokens
* @return whether it was a valid mapping
*/
private boolean processMemberTokens(String[] tokens) {
private boolean processMemberTokens(Mapper mapper, Mapper invertedMapper, String[] tokens) {
boolean field;
if(tokens[0].equals("MD:")) {
if(tokens.length != 5)
@ -78,25 +82,29 @@ public class SRGMapper extends AbstractMapper {
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]);
this.registerMember(mapper, invertedMapper, parent, parentObf, memberName, memberNameObf,
field ? null : tokens[2], field ? null : tokens[4]);
return true;
}
/**
* Registers a class in the mapper, if it isn't already.
* @param mapper the {@link Mapper} with normal mappings
* @param invertedMapper the {@link Mapper} with inverted mappings
* @param name the name
* @param nameMapped the mapped name
*/
private void registerClass(String name, String nameMapped) {
if(this.mappings.containsKey(name))
private void registerClass(Mapper mapper, Mapper invertedMapper, String name, String nameMapped) {
if(mapper.getRawMappings().containsKey(name))
return;
this.mappings.put(name, new ClassData(name, nameMapped));
this.mappingsInverted.put(nameMapped, new ClassData(nameMapped, name));
mapper.getRawMappings().put(name, new ClassData(name, nameMapped));
invertedMapper.getRawMappings().put(nameMapped, new ClassData(nameMapped, name));
}
/**
* Registers a class member. The descriptors should be null for fields.
* @param mapper the {@link Mapper} with normal mappings
* @param invertedMapper the {@link Mapper} with inverted mappings
* @param parent the parent's plain internal name
* @param parentMapped the parent's mapped internal name
* @param name the member's plain name
@ -104,11 +112,12 @@ public class SRGMapper extends AbstractMapper {
* @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,
private void registerMember(Mapper mapper, Mapper invertedMapper, 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);
this.registerClass(mapper, invertedMapper, parent, parentMapped);
ClassData data = mapper.getClassData(parent);
ClassData dataReverse = invertedMapper.getClassData(data.nameMapped);
if(descriptor == null || descriptorMapped == null) {
//field
data.addField(name, nameMapped);
@ -121,15 +130,12 @@ public class SRGMapper extends AbstractMapper {
}
@Override
public IMapper getInverted() {
SRGMapper inverted = new SRGMapper();
inverted.mappings.putAll(this.mappingsInverted);
inverted.mappingsInverted.putAll(this.mappings); //in case some weirdo calls getInverted() twice
return inverted;
public Mapper getMapper(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
return this.buildMapper(lines, ignoreErrors, false);
}
@Override
protected AbstractMapper newInstance() { //not really used but whatever
return new SRGMapper();
public Mapper getInvertedMapper(List<String> lines, boolean ignoreErrors) {
return this.buildMapper(lines, ignoreErrors, true);
}
}

25
src/main/java/ftbsc/lll/mapper/impl/TSRGMapper.java
View file

@ -2,20 +2,20 @@ 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.IMappingFormat;
import ftbsc.lll.mapper.tools.Mapper;
import ftbsc.lll.mapper.tools.data.ClassData;
import java.util.List;
import java.util.regex.Pattern;
/**
* A {@link IMapper} capable of parsing TSRG (an intermediary
* A {@link IMappingFormat} capable of parsing TSRG (an intermediary
* format used by Forge) files.
*/
@AutoService(IMapper.class)
public class TSRGMapper extends AbstractMapper {
@AutoService(IMappingFormat.class)
public class TSRGMapper implements IMappingFormat {
@Override
public boolean claim(List<String> lines) {
@ -24,7 +24,8 @@ public class TSRGMapper extends AbstractMapper {
}
@Override
public void populate(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
public Mapper getMapper(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
Mapper result = new Mapper();
String currentClass = "";
for(int i = 1; i < lines.size(); i++) { //start from 1 to skip header
String currentLine = lines.get(i);
@ -32,22 +33,18 @@ public class TSRGMapper extends AbstractMapper {
String[] tokens = currentLine.trim().split(" ");
if(isMember) {
if(tokens.length == 2) //field
this.mappings.get(currentClass).addField(tokens[0], tokens[1]);
result.getClassData(currentClass).addField(tokens[0], tokens[1]);
else if(tokens.length == 3)//method
this.mappings.get(currentClass).addMethod(tokens[0], tokens[2], tokens[1]); //add child
result.getClassData(currentClass).addMethod(tokens[0], tokens[2], tokens[1]); //add child
else if(!ignoreErrors) throw new MalformedMappingsException(i, "wrong number of space-separated tokens");
} else {
if(tokens.length == 2) {
ClassData s = new ClassData(tokens[0], tokens[1]);
currentClass = s.name;
this.mappings.put(s.name, s);
result.getRawMappings().put(s.name, s);
} else if(!ignoreErrors) throw new MalformedMappingsException(i, "wrong number of space-separated tokens");
}
}
}
@Override
protected AbstractMapper newInstance() {
return new TSRGMapper();
return result;
}
}

27
src/main/java/ftbsc/lll/mapper/impl/TinyV2Mapper.java
View file

@ -2,18 +2,18 @@ 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.IMappingFormat;
import ftbsc.lll.mapper.tools.Mapper;
import ftbsc.lll.mapper.tools.data.ClassData;
import java.util.List;
import java.util.regex.Pattern;
/**
* A {@link IMapper} capable of parsing TinyV2 mappings
* A {@link IMappingFormat} capable of parsing TinyV2 mappings.
*/
@AutoService(IMapper.class)
public class TinyV2Mapper extends AbstractMapper {
@AutoService(IMappingFormat.class)
public class TinyV2Mapper implements IMappingFormat {
@Override
public boolean claim(List<String> lines) {
@ -22,7 +22,8 @@ public class TinyV2Mapper extends AbstractMapper {
}
@Override
public void populate(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
public Mapper getMapper(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException {
Mapper result = new Mapper();
String currentClass = "";
for(int i = 1; i < lines.size(); i++) {
String currentLine = lines.get(i);
@ -32,7 +33,7 @@ public class TinyV2Mapper extends AbstractMapper {
case 0: //classes
if(tokens.length == 3) {
if(tokens[0].charAt(0) == 'c') {
this.mappings.put(tokens[1], new ClassData(tokens[1], tokens[2]));
result.getRawMappings().put(tokens[1], new ClassData(tokens[1], tokens[2]));
currentClass = tokens[1];
} else if(!ignoreErrors)
throw new MalformedMappingsException(i, "root-level element must be class");
@ -48,12 +49,12 @@ public class TinyV2Mapper extends AbstractMapper {
case 'm': //methods
if(tokens.length == 4)
break;
this.mappings.get(currentClass).addMethod(tokens[2], tokens[3], tokens[1]);
result.getClassData(currentClass).addMethod(tokens[2], tokens[3], tokens[1]);
continue;
case 'f': //fields
if(tokens.length == 4)
break;
this.mappings.get(currentClass).addField(tokens[2], tokens[3], tokens[1]);
result.getClassData(currentClass).addField(tokens[2], tokens[3], tokens[1]);
continue;
}
break;
@ -61,12 +62,8 @@ public class TinyV2Mapper extends AbstractMapper {
break;
}
if(!ignoreErrors)
throw new MalformedMappingsException(i, "wrong number of space-separated tokens");
throw new MalformedMappingsException(i, "wrong number of tab-separated tokens");
}
}
@Override
protected AbstractMapper newInstance() {
return new TinyV2Mapper();
return result;
}
}

78
src/main/java/ftbsc/lll/mapper/tools/Mapper.java Normal file
View file

@ -0,0 +1,78 @@
package ftbsc.lll.mapper.tools;
import ftbsc.lll.exceptions.MappingNotFoundException;
import ftbsc.lll.mapper.tools.data.ClassData;
import ftbsc.lll.mapper.tools.data.FieldData;
import ftbsc.lll.mapper.tools.data.MethodData;
import java.util.HashMap;
import java.util.Map;
/**
* An object containing parsed mapping data, which can
* apply a conversion as requested.
*/
public class Mapper {
/**
* A {@link Map} tying each plain class name to its class data.
*/
protected final Map<String, ClassData> mappings = new HashMap<>();
/**
* Gets the {@link ClassData} given the plain name.
* @param name the plain internal name of the desired class
* @return the mapped name of the class
* @throws MappingNotFoundException if no mapping is found
*/
public ClassData getClassData(String name) throws MappingNotFoundException {
ClassData data = this.mappings.get(name.replace('.', '/'));
if(data == null)
throw new MappingNotFoundException("class", name);
else return data;
}
/**
* Gets the mapped name of a method
* @param parent the plain internal name of the parent class
* @param name the plain method name
* @param descriptor the descriptor of the method
* @return the mapped name of the given member
* @throws MappingNotFoundException if no mapping is found
*/
public MethodData getMethodData(String parent, String name, String descriptor) throws MappingNotFoundException {
return this.getClassData(parent).mapMethod(name, descriptor);
}
/**
* Gets the mapped name of a field.
* @param parent the plain internal name of the parent class
* @param name the field's plain name
* @return the mapped name of the requested field
* @throws MappingNotFoundException if no mapping is found
*/
public FieldData getFieldData(String parent, String name) throws MappingNotFoundException {
return this.getClassData(parent).mapField(name);
}
/**
* Gets the "raw mappings".
* @return a {@link Map} tying each {@link ClassData} to the class' plain name
*/
public Map<String, ClassData> getRawMappings() {
return this.mappings;
}
/**
* Builds a new {@link Mapper} that functions in reverse to this one (i.e. one that
* considers as "mapped" what this one considers plain, and vice versa).
* @return the inverted mapper
*/
public Mapper getInverted() {
Mapper inverted = new Mapper();
this.mappings.forEach((name, data) -> {
ClassData reverse = data.generateReverseMappings(this);
inverted.mappings.put(data.nameMapped, reverse);
});
return inverted;
}
}

11
src/main/java/ftbsc/lll/mapper/tools/MappingUtils.java
View file

@ -1,7 +1,6 @@
package ftbsc.lll.mapper.tools;
import ftbsc.lll.exceptions.MappingNotFoundException;
import ftbsc.lll.mapper.IMapper;
import ftbsc.lll.tools.DescriptorBuilder;
import org.objectweb.asm.Type;
@ -14,11 +13,11 @@ public class MappingUtils {
/**
* Maps a method descriptor, replacing its class references with their mapped counterparts.
* @param descriptor a {@link String} containing the descriptor
* @param mapper the {@link IMapper} to use for the process
* @param mapper the {@link Mapper} to use for the process
* @param reverse if true it uses the inverted mapper rather than the normal one
* @return the mapped descriptor
*/
public static String mapMethodDescriptor(String descriptor, IMapper mapper, boolean reverse) {
public static String mapMethodDescriptor(String descriptor, Mapper mapper, boolean reverse) {
Type method = Type.getMethodType(descriptor);
Type[] arguments = method.getArgumentTypes();
Type returnType = method.getReturnType();
@ -31,13 +30,13 @@ public class MappingUtils {
}
/**
* Given a {@link Type} and a valid {@link IMapper} it returns its mapped counterpart.
* Given a {@link Type} and a valid {@link Mapper} it returns its mapped counterpart.
* @param type the type in question
* @param mapper the {@link IMapper} to use for the process
* @param mapper the {@link Mapper} to use for the process
* @param reverse if true it uses the inverted mapper rather than the normal one
* @return the mapped type
*/
public static Type mapType(Type type, IMapper mapper, boolean reverse) {
public static Type mapType(Type type, Mapper mapper, boolean reverse) {
//unwrap arrays
Type unwrapped = type;
int arrayLevel = 0;

4
src/main/java/ftbsc/lll/mapper/tools/data/ClassData.java
View file

@ -1,7 +1,7 @@
package ftbsc.lll.mapper.tools.data;
import ftbsc.lll.exceptions.MappingNotFoundException;
import ftbsc.lll.mapper.IMapper;
import ftbsc.lll.mapper.tools.Mapper;
import ftbsc.lll.mapper.tools.MappingUtils;
import java.util.HashMap;
@ -85,7 +85,7 @@ public class ClassData {
* @param mapper the mapper that generated this data
* @return a ClassData representing the inverted mappings
*/
public ClassData generateReverseMappings(IMapper mapper) {
public ClassData generateReverseMappings(Mapper mapper) {
ClassData reverse = new ClassData(this.nameMapped, this.name);
this.methods.forEach((signature, data) -> reverse.addMethod(nameMapped, signature.name,
MappingUtils.mapMethodDescriptor(signature.descriptor, mapper, false)));