feat: implemented abstraction logic

1 files changed, 50 insertions, 26 deletions

diff --git a/src/main/java/ftbsc/lll/mapper/IMapper.java b/src/main/java/ftbsc/lll/mapper/IMapper.java
index 8adf860..96b5d6f 100644
--- a/src/main/java/ftbsc/lll/mapper/IMapper.java
+++ b/src/main/java/ftbsc/lll/mapper/IMapper.java
@@ -1,56 +1,80 @@
 package ftbsc.lll.mapper;
 
+import ftbsc.lll.exceptions.MalformedMappingsException;
 import ftbsc.lll.exceptions.MappingNotFoundException;
 
-import java.util.HashSet;
-import java.util.ServiceLoader;
-import java.util.Set;
+import java.util.*;
 
 /**
  * A generic obfuscation mapper.
  */
 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);
 
 	/**
-	 * Reads the given lines of text and attempts to interpret them as
-	 * mappings of the given type.
+	 * 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(Iterable<String> lines);
+	void populate(List<String> lines, boolean ignoreErrors) throws MalformedMappingsException;
+
+	/**
+	 * Completely resets the mapper, clearing it of all existing mappings.
+	 */
+	void reset();
 
 	/**
 	 * Gets the obfuscated name of the class.
-	 * @param name the unobfuscated internal name of the desired class
+	 * @param name the plain internal name of the desired class
 	 * @return the obfuscated name of the class
 	 * @throws MappingNotFoundException if no mapping is found
 	 */
-	String obfuscateClass(String name);
+	String obfuscateClass(String name) throws MappingNotFoundException;
+
+	/**
+	 * Gets the plain name of the class.
+	 * @param nameObf the obfuscated internal name of the desired class
+	 * @return the plain name of the class
+	 * @throws MappingNotFoundException if no mapping is found
+	 */
+	String deobfuscateClass(String nameObf) throws MappingNotFoundException;
 
 	/**
 	 * Gets the obfuscated name of a class member (field or method).
-	 * @param parentName the unobfuscated internal name of the parent class
+	 * @param parentName the plain internal name of the parent class
 	 * @param memberName the field name or method signature
-	 * @param methodDescriptor the descriptor of the member
+	 * @param methodDescriptor the descriptor of the member (only for methods)
 	 * @return the obfuscated name of the given member
 	 * @throws MappingNotFoundException if no mapping is found
 	 */
-	String obfuscateMember(String parentName, String memberName, String methodDescriptor);
+	String obfuscateMember(String parentName, String memberName, String methodDescriptor) throws MappingNotFoundException;
 
 	/**
-	 * Loads all valid parsers available in the classpath (via the Java Service API),
-	 * attempts to parse the given lines into mappings, and returns all built mappers
-	 * that succeeded without throwing errors or ftbsc.lll.exceptions.
-	 * @param lines the lines of the mapping file
-	 * @return a {@link Set} of mappers that could interpret the given input
+	 * Gets the plain name of a class member (field or method).
+	 * @param parentName the obfuscated internal name of the parent class
+	 * @param memberName the obfuscated field name or method signature
+	 * @param methodDescriptor the obfuscated descriptor of the member (only for methods)
+	 * @return the plain name of the given member
+	 * @throws MappingNotFoundException if no mapping is found
 	 */
-	static Set<IMapper> getMappers(Iterable<String> lines) {
-		Set<IMapper> parsed = new HashSet<>();
-		for(IMapper mapper: ServiceLoader.load(IMapper.class)) {
-			try {
-				mapper.populate(lines);
-				parsed.add(mapper);
-			} catch(Throwable ignored) {}
-		}
-		return parsed;
-	}
+	String deobfuscateMember(String parentName, String memberName, String methodDescriptor) throws MappingNotFoundException;
+
 }