i21017/JavaCompilerCore
1
0
Fork 0
forked from JavaTX/JavaCompilerCore
Code Pull Requests Activity

Separated the generation of bytecode and the calculation of simplify

Browse Source 
results from each other
This commit is contained in:
Fayez Abu Alia 2019-07-05 13:29:34 +02:00
parent c1e6526b43
commit 669e7f111f
13 changed files with 1207 additions and 212 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

151
src/main/java/de/dhbwstuttgart/bytecode/BytecodeGen.java
View File

@ -6,8 +6,10 @@ import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Optional;
import java.util.Set;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.FieldVisitor;
@ -22,11 +24,12 @@ import de.dhbwstuttgart.bytecode.descriptor.TypeToDescriptor;
import de.dhbwstuttgart.bytecode.signature.Signature;
import de.dhbwstuttgart.bytecode.signature.TypeToSignature;
import de.dhbwstuttgart.bytecode.signature.TypeToString;
import de.dhbwstuttgart.bytecode.simplifyRes.SimplifyResult;
import de.dhbwstuttgart.bytecode.simplifyRes.SimplifyResultSourceFile;
import de.dhbwstuttgart.bytecode.utilities.MethodAndTPH;
import de.dhbwstuttgart.bytecode.utilities.NormalConstructor;
import de.dhbwstuttgart.bytecode.utilities.NormalMethod;
import de.dhbwstuttgart.bytecode.utilities.Simplify;
import de.dhbwstuttgart.bytecode.utilities.SimplifyResult;
import de.dhbwstuttgart.exceptions.NotImplementedException;
import de.dhbwstuttgart.parser.SyntaxTreeGenerator.AssignToLocal;
import de.dhbwstuttgart.syntaxtree.ASTVisitor;
@ -83,7 +86,8 @@ public class BytecodeGen implements ASTVisitor {
String type;
public static RefTypeOrTPHOrWildcardOrGeneric THISTYPE = null;
String className;
private String className;
private String pkgName;
private boolean isInterface;
private Collection<ResultSet> listOfResultSets;
private ResultSet resultSet;
@ -96,7 +100,7 @@ public class BytecodeGen implements ASTVisitor {
private String superClass;
private ArrayList<String> tphsClass;
private List<String> tphsClass;
// stores parameter, local vars and the next index on the local variable table,
// which use for aload_i, astore_i,...
@ -106,9 +110,6 @@ public class BytecodeGen implements ASTVisitor {
private int constructorPos = 0;
private final TPHExtractor tphExtractor = new TPHExtractor();
private final ArrayList<GenericInsertPair> commonPairs = new ArrayList<>();
HashMap<String, RefTypeOrTPHOrWildcardOrGeneric> methodParamsAndTypes = new HashMap<>();
byte[] bytecode;
HashMap<String, byte[]> classFiles;
@ -116,34 +117,27 @@ public class BytecodeGen implements ASTVisitor {
private final ArrayList<String> methodNameAndParamsT = new ArrayList<>();
private final ArrayList<String> fieldNameAndParamsT = new ArrayList<>();
private HashMap<String, SimplifyResult> simplifyResults = new HashMap<>();
private List<HashMap<String, SimplifyResult>> simplifyResultsList = new ArrayList<>();
private final ArrayList<String> fieldNameSignature = new ArrayList<>();
public List<HashMap<String, SimplifyResult>> getSimplifyResultsList() {
return simplifyResultsList;
}
private List<SimplifyResultSourceFile> simplifyResultsForAllSourceFiles;
private SimplifyResult simplifyResult;
public void setSimplifyResultsList(List<HashMap<String, SimplifyResult>> simplifyResultsList) {
this.simplifyResultsList = simplifyResultsList;
}
public BytecodeGen(HashMap<String, byte[]> classFiles, Collection<ResultSet> listOfResultSets, SourceFile sf,
public BytecodeGen(HashMap<String, byte[]> classFiles, Collection<ResultSet> listOfResultSets, List<SimplifyResultSourceFile> simplifyResultsForAllSourceFiles, SourceFile sf,
String path) {
this.classFiles = classFiles;
this.listOfResultSets = listOfResultSets;
this.simplifyResultsForAllSourceFiles = simplifyResultsForAllSourceFiles;
this.sf = sf;
this.path = path;
this.pkgName = sf.getPkgName();
}
@Override
public void visit(SourceFile sourceFile) {
for (ClassOrInterface cl : sourceFile.getClasses()) {
System.out.println("in Class: " + cl.getClassName().toString());
BytecodeGen classGen = new BytecodeGen(classFiles, listOfResultSets, sf, path);
BytecodeGen classGen = new BytecodeGen(classFiles, listOfResultSets, simplifyResultsForAllSourceFiles, sf, path);
cl.accept(classGen);
simplifyResultsList.add(classGen.getSimplifyResults());
classGen.writeClass(cl.getClassName().toString());
}
}
@ -152,7 +146,7 @@ public class BytecodeGen implements ASTVisitor {
* Associates the bytecode of the class that was build with the classWriter
* {@link #cw} with the class name in the map {@link #classFiles}
*
* @param name name of the class with which the the bytecode is to be associated
* @param name name of the class with which the bytecode is to be associated
*/
private void writeClass(String name) {
bytecode = cw.toByteArray();
@ -182,69 +176,29 @@ public class BytecodeGen implements ASTVisitor {
boolean isConsWithNoParamsVisited = false;
boolean isVisited = false;
List<ResultSet> listOfResultSetsList = new ArrayList<>(listOfResultSets);
simplifyResult = simplifyResultsForAllSourceFiles.stream().map(sr->sr.getSimplifyResultsByName(pkgName, className)).findFirst().get();
for (int i = 0; i < listOfResultSetsList.size(); i++) {
//for (ResultSet rs : listOfResultSets) {
superClass = classOrInterface.getSuperClass().acceptTV(new TypeToDescriptor());
resultSet = listOfResultSetsList.get(i);
tphExtractor.setResultSet(resultSet);
// tphExtractor.setResultSet(resultSet);
// Nur einmal ausführen!!
if (!isVisited) {
classOrInterface.accept(tphExtractor);
getCommonTPHS(tphExtractor);
tphsClass = new ArrayList<>();
for (String t : tphExtractor.allTPHS.keySet()) {
if (!tphExtractor.allTPHS.get(t))
tphsClass.add(t);
}
tphsClass = simplifyResult.getTphsClass();
String sig = null;
/*
* if class has generics then creates signature Signature looks like:
* <E:Ljava/...>Superclass
*/
if (classOrInterface.getGenerics().iterator().hasNext() || !commonPairs.isEmpty()
|| classOrInterface.getSuperClass().acceptTV(new TypeToSignature()).contains("<")
if (classOrInterface.getGenerics().iterator().hasNext() || classOrInterface.getSuperClass().acceptTV(new TypeToSignature()).contains("<")
|| !tphsClass.isEmpty()) {
HashMap<TPHConstraint, HashSet<String>> constraints = Simplify
.simplifyConstraintsClass(tphExtractor, tphsClass);
ArrayList<TPHConstraint> consClass = new ArrayList<>();
for (TPHConstraint cons : constraints.keySet()) {
String right = null;
boolean isToAdd = false;
for (String tph : tphsClass) {
if (cons.getLeft().equals(tph)) {
consClass.add(cons);
try {
right = getTPH(cons.getRight());
isToAdd = true;
} catch (NoSuchElementException e) {
continue;
}
}
}
if (isToAdd) {
tphsClass.add(right);
removeFromMethod(right);
right = null;
isToAdd = false;
}
// if(right != null) {
// tphsClass.add(right);
// removeFromMethod(right);
// right = null;
// }
}
SimplifyResult sRes = new SimplifyResult(consClass, tphsClass, new HashMap<>());
simplifyResults.put(className, sRes);
Signature signature = new Signature(classOrInterface, genericsAndBounds, commonPairs, tphsClass,
consClass);
List<TPHConstraint> consClass = simplifyResult.getClassConstraints();
Signature signature = new Signature(classOrInterface, genericsAndBounds, consClass);
sig = signature.toString();
System.out.println("Signature: => " + sig);
}
@ -276,41 +230,6 @@ public class BytecodeGen implements ASTVisitor {
}
private void removeFromMethod(String name) {
for (MethodAndTPH m : tphExtractor.ListOfMethodsAndTph) {
ArrayList<String> toRemove = new ArrayList<>();
for (String tph : m.getTphs()) {
if (tph.equals(name)) {
toRemove.add(tph);
}
}
if (!toRemove.isEmpty()) {
m.getTphs().removeAll(toRemove);
return;
}
}
}
private String getTPH(String name) {
for (String tph : tphExtractor.allTPHS.keySet()) {
if (tph.equals(name))
return tph;
}
throw new NoSuchElementException("TPH " + name + " does not exist");
}
private void getCommonTPHS(TPHExtractor tphExtractor) {
// Gemeinsame TPHs
ArrayList<String> cTPHs = new ArrayList<>();
// Alle TPHs der Felder speichern
for (String tph : tphExtractor.allTPHS.keySet()) {
if (!tphExtractor.allTPHS.get(tph))
cTPHs.add(tph);
}
}
@Override
public void visit(Constructor field) {
System.out.println("ResultSet: ");
@ -330,7 +249,6 @@ public class BytecodeGen implements ASTVisitor {
while (itr.hasNext()) {
FormalParameter fp = itr.next();
methParamTypes += resultSet.resolveType(fp.getType()).resolvedType.acceptTV(new TypeToDescriptor()) + ";";
// methParamTypes += resultSet.resolveType(fp.getType()).resolvedType.acceptTV(new TypeToSignature())+";";
}
if (methodNameAndParamsT.contains(methParamTypes)) {
@ -353,8 +271,7 @@ public class BytecodeGen implements ASTVisitor {
}
String sig = null;
if (hasGen) {
HashMap<TPHConstraint, HashSet<String>> constraints = Simplify.simplifyConstraints(field, tphExtractor,
tphsClass);
Map<TPHConstraint, Set<String>> constraints = simplifyResult.getMethodConstraintsByID(methParamTypes);
Signature signature = new Signature(field, genericsAndBounds, methodParamsAndTypes, resultSet, constraints);
sig = signature.toString();
}
@ -395,7 +312,6 @@ public class BytecodeGen implements ASTVisitor {
while (itr.hasNext()) {
FormalParameter fp = itr.next();
methParamTypes += resultSet.resolveType(fp.getType()).resolvedType.acceptTV(new TypeToDescriptor()) + ";";
// methParamTypes += resultSet.resolveType(fp.getType()).resolvedType.acceptTV(new TypeToSignature())+";";
}
if (methodNameAndParamsT.contains(methParamTypes)) {
@ -443,23 +359,12 @@ public class BytecodeGen implements ASTVisitor {
// zwite operand muss weggelassen werden
if (hasGen || resultSet.resolveType(method.getReturnType()).resolvedType.acceptTV(new TypeToString())
.equals("TPH")) {
System.out.println("ALL CONST: " + tphExtractor.allCons.size());
tphExtractor.allCons.forEach(c -> System.out.println(c.toString()));
System.out.println("----------------");
HashMap<TPHConstraint, HashSet<String>> constraints = Simplify.simplifyConstraints(method,
tphExtractor, tphsClass);
Map<TPHConstraint, Set<String>> constraints = simplifyResult.getMethodConstraintsByID(methParamTypes);
// ArrayList<GenericInsertPair> pairs = simplifyPairs(method.name,tphExtractor.allPairs,tphExtractor.allCons);
Signature signature = new Signature(method, genericsAndBoundsMethod, genericsAndBounds,
methodParamsAndTypes, resultSet, constraints);
sig = signature.toString();
if (simplifyResults.containsKey(className)) {
simplifyResults.get(className).getMethodsConstraints().put(methParamTypes, constraints);
} else {
SimplifyResult sRes = new SimplifyResult(new ArrayList<>(), new ArrayList<>(), new HashMap<>());
sRes.getMethodsConstraints().put(methParamTypes, constraints);
simplifyResults.put(className, sRes);
}
}
System.out.println(method.getName() + " ==> " + sig);
NormalMethod meth = new NormalMethod(method, genericsAndBounds, genericsAndBoundsMethod, hasGen);
@ -476,10 +381,6 @@ public class BytecodeGen implements ASTVisitor {
mv.visitEnd();
}
public HashMap<String, SimplifyResult> getSimplifyResults() {
return simplifyResults;
}
@Override
public void visit(ParameterList formalParameters) {
paramsAndLocals = new HashMap<>();

2
src/main/java/de/dhbwstuttgart/bytecode/TPHExtractor.java
View File

@ -40,7 +40,7 @@ import de.dhbwstuttgart.typeinference.result.ResultSet;
public class TPHExtractor extends AbstractASTWalker {
// Alle TPHs der Felder werden iKopf der Klasse definiert
// alle TPHs der Klasse: (TPH, is in Method?)
final HashMap<String, Boolean> allTPHS = new HashMap<>();
public final HashMap<String, Boolean> allTPHS = new HashMap<>();
MethodAndTPH methodAndTph;
Boolean inMethod = false;

37
src/main/java/de/dhbwstuttgart/bytecode/signature/Signature.java
View File

@ -4,6 +4,9 @@ import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.objectweb.asm.Type;
import org.objectweb.asm.signature.SignatureVisitor;
@ -18,7 +21,6 @@ import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
import de.dhbwstuttgart.syntaxtree.Constructor;
import de.dhbwstuttgart.syntaxtree.GenericTypeVar;
import de.dhbwstuttgart.syntaxtree.Method;
import de.dhbwstuttgart.syntaxtree.statement.LambdaExpression;
import de.dhbwstuttgart.syntaxtree.type.ExtendsWildcardType;
import de.dhbwstuttgart.syntaxtree.type.GenericRefType;
import de.dhbwstuttgart.syntaxtree.type.RefType;
@ -26,7 +28,6 @@ import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
import de.dhbwstuttgart.syntaxtree.type.SuperWildcardType;
import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
import de.dhbwstuttgart.syntaxtree.type.WildcardType;
import de.dhbwstuttgart.typeinference.result.GenericInsertPair;
import de.dhbwstuttgart.typeinference.result.ResolvedType;
import de.dhbwstuttgart.typeinference.result.ResultSet;
@ -39,17 +40,13 @@ public class Signature {
private Method method;
private HashMap<String,RefTypeOrTPHOrWildcardOrGeneric> methodParamsAndTypes;
private ResultSet resultSet;
private ArrayList<GenericInsertPair> commonPairs;
private HashMap<TPHConstraint,HashSet<String>> methodConstraints;
private ArrayList<String> tphsClass;
private ArrayList<TPHConstraint> consClass;
private Map<TPHConstraint, Set<String>> methodConstraints;
private List<TPHConstraint> consClass;
public Signature(ClassOrInterface classOrInterface, HashMap<String, String> genericsAndBounds,
ArrayList<GenericInsertPair> commonPairs, ArrayList<String> tphsClass, ArrayList<TPHConstraint> consClass) {
List<TPHConstraint> consClass) {
this.classOrInterface = classOrInterface;
this.genericsAndBounds = genericsAndBounds;
this.commonPairs = commonPairs;
this.tphsClass = tphsClass;
this.consClass = consClass;
sw = new SignatureWriter();
createSignatureForClassOrInterface();
@ -57,7 +54,7 @@ public class Signature {
public Signature(Constructor constructor, HashMap<String, String> genericsAndBounds,
HashMap<String,RefTypeOrTPHOrWildcardOrGeneric> methodParamsAndTypes,ResultSet resultSet,
HashMap<TPHConstraint,HashSet<String>> methodConstraints) {
Map<TPHConstraint,Set<String>> methodConstraints) {
this.constructor = constructor;
this.genericsAndBounds = genericsAndBounds;
this.methodParamsAndTypes = methodParamsAndTypes;
@ -69,13 +66,13 @@ public class Signature {
public Signature(Method method, HashMap<String, String> genericsAndBoundsMethod,HashMap<String, String> genericsAndBounds,
HashMap<String, RefTypeOrTPHOrWildcardOrGeneric> methodParamsAndTypes, ResultSet resultSet,
HashMap<TPHConstraint,HashSet<String>> methodConstraints) {
Map<TPHConstraint, Set<String>> constraints) {
this.method = method;
this.genericsAndBoundsMethod = genericsAndBoundsMethod;
this.genericsAndBounds = genericsAndBounds;
this.methodParamsAndTypes = methodParamsAndTypes;
this.resultSet = resultSet;
this.methodConstraints = methodConstraints;
this.methodConstraints = constraints;
sw = new SignatureWriter();
createSignatureForConsOrMethod(this.method,false);
}
@ -152,7 +149,7 @@ public class Signature {
String ret = resultSet.resolveType(method.getReturnType()).resolvedType.acceptTV(new TypeToSignature());
ArrayList<TPHConstraint> allConsBeforeSimplify = new ArrayList<>();
HashMap<TPHConstraint,HashSet<String>> allConstraints = new HashMap<>();
Map<TPHConstraint,Set<String>> allConstraints = new HashMap<>();
if(ret.contains("<")) {
allConsBeforeSimplify = getAllConstraints((RefType) resultSet.resolveType(method.getReturnType()).resolvedType);
@ -199,17 +196,17 @@ public class Signature {
// sw.visitEnd();
}
private void addConstraintsToMap(HashMap<TPHConstraint, HashSet<String>> allConstraints,
private void addConstraintsToMap(Map<TPHConstraint, Set<String>> allConstraints,
ArrayList<TPHConstraint> allConsBeforeSimplify) {
for(TPHConstraint tphCons : allConsBeforeSimplify) {
allConstraints.put(tphCons, null);
}
}
private String getEqualTPH(HashMap<TPHConstraint, HashSet<String>> methodConstraints, String tph) {
for(TPHConstraint cons : methodConstraints.keySet()) {
if(methodConstraints.get(cons) != null) {
if(methodConstraints.get(cons).contains(tph)) {
private String getEqualTPH(Map<TPHConstraint, Set<String>> methodConstraints2, String tph) {
for(TPHConstraint cons : methodConstraints2.keySet()) {
if(methodConstraints2.get(cons) != null) {
if(methodConstraints2.get(cons).contains(tph)) {
return cons.getLeft();
}
}
@ -217,10 +214,10 @@ public class Signature {
return tph;
}
private void createTypeVars(HashMap<TPHConstraint, HashSet<String>> allConstraints, boolean doSimplify) {
private void createTypeVars(Map<TPHConstraint, Set<String>> allConstraints, boolean doSimplify) {
allConstraints.putAll(methodConstraints);
HashMap<TPHConstraint, HashSet<String>> simplifiedConstraints;
Map<TPHConstraint, Set<String>> simplifiedConstraints;
if(doSimplify) {
simplifiedConstraints = Simplify.simplifyContraints(allConstraints);
}else {

64
src/main/java/de/dhbwstuttgart/bytecode/simplifyRes/SimplifyResult.java Normal file
View File

@ -0,0 +1,64 @@
/**
*
*/
package de.dhbwstuttgart.bytecode.simplifyRes;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
/**
* The class SimplifyResult represents the results of the simplify algorithm.
* This class contains all constraints and all type placeholders of a class. The type placeholders
* are represented by their names.
* The simplify results of each method of a class are also contained in this class.
*
* @author fayez
*
*/
public class SimplifyResult {
private List<TPHConstraint> classConstraints;
private List<String> tphsClass;
private final List<SimplifyResultMethod> simplifyResultForMethod = new ArrayList<>();
public SimplifyResult(List<TPHConstraint> classConstraints, List<String> tphsClass) {
this.classConstraints = classConstraints;
this.tphsClass = tphsClass;
}
public SimplifyResult() {
}
public List<TPHConstraint> getClassConstraints() {
return classConstraints;
}
public List<SimplifyResultMethod> getSimplifyResultForMethod() {
return simplifyResultForMethod;
}
public List<String> getTphsClass() {
return tphsClass==null?new ArrayList<>():tphsClass;
}
/**
* @param classConstraints the classConstraints to set
*/
public void setClassConstraints(List<TPHConstraint> classConstraints) {
this.classConstraints = classConstraints;
}
/**
* @param tphsClass the tphsClass to set
*/
public void setTphsClass(List<String> tphsClass) {
this.tphsClass = tphsClass;
}
public Map<TPHConstraint, Set<String>> getMethodConstraintsByID(String id){
return simplifyResultForMethod.stream().filter(sr->sr.getMethodID().equals(id)).findAny().get().getConastraintsAndEqualTPHs();
}
}

48
src/main/java/de/dhbwstuttgart/bytecode/simplifyRes/SimplifyResultClass.java Normal file
View File

@ -0,0 +1,48 @@
/**
*
*/
package de.dhbwstuttgart.bytecode.simplifyRes;
/**
* The simplify results of a class
*
* @author fayez
*
*/
public class SimplifyResultClass {
private final String className;
private SimplifyResult simplifyResults;
/**
* @param className
*/
public SimplifyResultClass(String className) {
this.className = className;
}
/**
* @param className
* @param simplifyResults
*/
public SimplifyResultClass(String className, SimplifyResult simplifyResults) {
this.className = className;
this.simplifyResults = simplifyResults;
}
public String getClassName() {
return className;
}
public SimplifyResult getSimplifyResults() {
return simplifyResults;
}
/**
* @param simplifyResults the simplifyResults to set
*/
public void setSimplifyResults(SimplifyResult simplifyResults) {
this.simplifyResults = simplifyResults;
}
}

820
src/main/java/de/dhbwstuttgart/bytecode/simplifyRes/SimplifyResultFinder.java Normal file
View File

@ -0,0 +1,820 @@
/**
*
*/
package de.dhbwstuttgart.bytecode.simplifyRes;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
import de.dhbwstuttgart.bytecode.BytecodeGen;
import de.dhbwstuttgart.bytecode.TPHExtractor;
import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
import de.dhbwstuttgart.bytecode.descriptor.TypeToDescriptor;
import de.dhbwstuttgart.bytecode.signature.Signature;
import de.dhbwstuttgart.bytecode.signature.TypeToSignature;
import de.dhbwstuttgart.bytecode.signature.TypeToString;
import de.dhbwstuttgart.bytecode.utilities.MethodAndTPH;
import de.dhbwstuttgart.bytecode.utilities.Resolver;
import de.dhbwstuttgart.bytecode.utilities.Simplify;
import de.dhbwstuttgart.parser.SyntaxTreeGenerator.AssignToLocal;
import de.dhbwstuttgart.syntaxtree.ASTVisitor;
import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
import de.dhbwstuttgart.syntaxtree.Constructor;
import de.dhbwstuttgart.syntaxtree.Field;
import de.dhbwstuttgart.syntaxtree.FormalParameter;
import de.dhbwstuttgart.syntaxtree.GenericDeclarationList;
import de.dhbwstuttgart.syntaxtree.GenericTypeVar;
import de.dhbwstuttgart.syntaxtree.Method;
import de.dhbwstuttgart.syntaxtree.ParameterList;
import de.dhbwstuttgart.syntaxtree.SourceFile;
import de.dhbwstuttgart.syntaxtree.statement.ArgumentList;
import de.dhbwstuttgart.syntaxtree.statement.Assign;
import de.dhbwstuttgart.syntaxtree.statement.AssignToField;
import de.dhbwstuttgart.syntaxtree.statement.BinaryExpr;
import de.dhbwstuttgart.syntaxtree.statement.Block;
import de.dhbwstuttgart.syntaxtree.statement.CastExpr;
import de.dhbwstuttgart.syntaxtree.statement.DoStmt;
import de.dhbwstuttgart.syntaxtree.statement.EmptyStmt;
import de.dhbwstuttgart.syntaxtree.statement.ExpressionReceiver;
import de.dhbwstuttgart.syntaxtree.statement.FieldVar;
import de.dhbwstuttgart.syntaxtree.statement.ForStmt;
import de.dhbwstuttgart.syntaxtree.statement.IfStmt;
import de.dhbwstuttgart.syntaxtree.statement.InstanceOf;
import de.dhbwstuttgart.syntaxtree.statement.LambdaExpression;
import de.dhbwstuttgart.syntaxtree.statement.Literal;
import de.dhbwstuttgart.syntaxtree.statement.LocalVar;
import de.dhbwstuttgart.syntaxtree.statement.LocalVarDecl;
import de.dhbwstuttgart.syntaxtree.statement.MethodCall;
import de.dhbwstuttgart.syntaxtree.statement.NewArray;
import de.dhbwstuttgart.syntaxtree.statement.NewClass;
import de.dhbwstuttgart.syntaxtree.statement.Return;
import de.dhbwstuttgart.syntaxtree.statement.ReturnVoid;
import de.dhbwstuttgart.syntaxtree.statement.StaticClassName;
import de.dhbwstuttgart.syntaxtree.statement.Super;
import de.dhbwstuttgart.syntaxtree.statement.SuperCall;
import de.dhbwstuttgart.syntaxtree.statement.This;
import de.dhbwstuttgart.syntaxtree.statement.UnaryExpr;
import de.dhbwstuttgart.syntaxtree.statement.WhileStmt;
import de.dhbwstuttgart.syntaxtree.type.ExtendsWildcardType;
import de.dhbwstuttgart.syntaxtree.type.GenericRefType;
import de.dhbwstuttgart.syntaxtree.type.RefType;
import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
import de.dhbwstuttgart.syntaxtree.type.SuperWildcardType;
import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
import de.dhbwstuttgart.typeinference.result.ResultSet;
/**
* @author fayez
*
*/
public class SimplifyResultFinder implements ASTVisitor {
private final TPHExtractor tphExtractor = new TPHExtractor();
private Collection<ResultSet> listOfResultSets;
private SourceFile sf;
private List<String> tphsClass;
private SimplifyResultSourceFile simplifyResOfSourceFile;
private ResultSet resultSet;
private List<String> methodNameAndParamsT = new ArrayList<>();
private Resolver resolver;
private String pkgName;
private String className;
// stores generics and their bounds of class
private Map<String, String> genericsAndBounds = new HashMap<>();
private Map<String, RefTypeOrTPHOrWildcardOrGeneric> methodParamsAndTypes = new HashMap<>();
/**
* @param sf
* @param listOfResultSets
*/
public SimplifyResultFinder(SourceFile sf, Collection<ResultSet> listOfResultSets) {
this.sf = sf;
this.listOfResultSets = listOfResultSets;
}
public SimplifyResultSourceFile findSimplifyRes() {
sf.accept(this);
return simplifyResOfSourceFile;
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* SourceFile)
*/
@Override
public void visit(SourceFile sourceFile) {
pkgName = sf.getPkgName();
simplifyResOfSourceFile = new SimplifyResultSourceFile(pkgName);
for (ClassOrInterface cl : sourceFile.getClasses()) {
cl.accept(this);
}
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* ClassOrInterface)
*/
@Override
public void visit(ClassOrInterface classOrInterface) {
className = classOrInterface.getClassName().toString();
SimplifyResult sRes = new SimplifyResult();
SimplifyResultClass sResClass = new SimplifyResultClass(className);
List<ResultSet> listOfResultSetsList = new ArrayList<>(listOfResultSets);
for (int i = 0; i < listOfResultSetsList.size(); i++) {
resultSet = listOfResultSetsList.get(i);
resolver = new Resolver(resultSet);
tphExtractor.setResultSet(resultSet);
classOrInterface.accept(tphExtractor);
tphsClass = new ArrayList<>();
for (String t : tphExtractor.allTPHS.keySet()) {
if (!tphExtractor.allTPHS.get(t))
tphsClass.add(t);
}
if (classOrInterface.getGenerics().iterator().hasNext()
|| classOrInterface.getSuperClass().acceptTV(new TypeToSignature()).contains("<")
|| !tphsClass.isEmpty()) {
Map<TPHConstraint, Set<String>> constraints = Simplify.simplifyConstraintsClass(tphExtractor, tphsClass);
ArrayList<TPHConstraint> consClass = new ArrayList<>();
for (TPHConstraint cons : constraints.keySet()) {
String right = null;
boolean isToAdd = false;
for (String tph : tphsClass) {
if (cons.getLeft().equals(tph)) {
consClass.add(cons);
try {
right = getTPH(cons.getRight());
isToAdd = true;
} catch (NoSuchElementException e) {
continue;
}
}
}
if (isToAdd && !tphsClass.contains(right)) {
tphsClass.add(right);
removeFromMethod(right);
right = null;
isToAdd = false;
}
}
sRes.setClassConstraints(consClass);
sRes.setTphsClass(tphsClass);
TypeVariableFinder typeVariableFinder = new TypeVariableFinder(classOrInterface, genericsAndBounds, tphsClass,
consClass);
typeVariableFinder.findTV();
}
sResClass.setSimplifyResults(sRes);
simplifyResOfSourceFile.addSimplifyResultClass(sResClass);
for (Constructor c : classOrInterface.getConstructors()) {
c.accept(this);
}
for (Method m : classOrInterface.getMethods()) {
m.accept(this);
}
}
}
private void removeFromMethod(String name) {
for (MethodAndTPH m : tphExtractor.ListOfMethodsAndTph) {
ArrayList<String> toRemove = new ArrayList<>();
for (String tph : m.getTphs()) {
if (tph.equals(name)) {
toRemove.add(tph);
}
}
if (!toRemove.isEmpty()) {
m.getTphs().removeAll(toRemove);
return;
}
}
}
private String getTPH(String name) {
for (String tph : tphExtractor.allTPHS.keySet()) {
if (tph.equals(name))
return tph;
}
throw new NoSuchElementException("TPH " + name + " does not exist");
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* Method)
*/
@Override
public void visit(Method method) {
String retType = resolver.getResolvedType(method.getReturnType());
String methParamTypes = retType + method.name + "%%";
method.getParameterList().accept(this);
Iterator<FormalParameter> itr = method.getParameterList().iterator();
while (itr.hasNext()) {
FormalParameter fp = itr.next();
methParamTypes += resolver.getResolvedType(fp.getType()) + ";";
}
if (methodNameAndParamsT.contains(methParamTypes)) {
return;
}
methodNameAndParamsT.add(methParamTypes);
/* Prüfe, ob die Rückgabe-Type der Methode eine Type-Variable ist */
boolean hasGenInParameterList = genericsAndBounds.containsKey(retType) || retType.contains("TPH ")
|| resultSet.resolveType(method.getReturnType()).resolvedType.acceptTV(new TypeToSignature())
.contains("<");
/*
* Wenn die Rückgabe-Type eine Typ-variable ist, erzeuge direkt die Signature,
* wenn nicht, prüfe, ob einer der Parameter Typ-Variable als Typ hat
*/
if (!hasGenInParameterList) {
for (String paramName : methodParamsAndTypes.keySet()) {
String typeOfParam = methodParamsAndTypes.get(paramName).acceptTV(new TypeToDescriptor());
String sigOfParam = methodParamsAndTypes.get(paramName).acceptTV(new TypeToSignature());
if (genericsAndBounds.containsKey(typeOfParam) || typeOfParam.contains("TPH ")
|| sigOfParam.contains("<")) {
hasGenInParameterList = true;
break;
}
}
}
/* if method has generics or return type is TPH, create signature */
// zwite operand muss weggelassen werden
if (hasGenInParameterList || resultSet.resolveType(method.getReturnType()).resolvedType.acceptTV(new TypeToString())
.equals("TPH")) {
Map<TPHConstraint, Set<String>> constraints = Simplify.simplifyConstraints(method,
tphExtractor, tphsClass);
SimplifyResultMethod sResMethod = new SimplifyResultMethod(methParamTypes, constraints);
simplifyResOfSourceFile.getSimplifyResultsByName(pkgName,className).getSimplifyResultForMethod().add(sResMethod);
}
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* ParameterList)
*/
@Override
public void visit(ParameterList formalParameters) {
if(!methodParamsAndTypes.isEmpty())
methodParamsAndTypes.clear();
Iterator<FormalParameter> itr = formalParameters.iterator();
int i = 1;
while (itr.hasNext()) {
FormalParameter fp = itr.next();
methodParamsAndTypes.put(fp.getName(), resultSet.resolveType(fp.getType()).resolvedType);
fp.accept(this);
i++;
}
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* Constructor)
*/
@Override
public void visit(Constructor field) {
field.getParameterList().accept(this);
String methParamTypes = field.name + "%%";
Iterator<FormalParameter> itr = field.getParameterList().iterator();
while (itr.hasNext()) {
FormalParameter fp = itr.next();
methParamTypes += resolver.getResolvedType(fp.getType()) + ";";
}
if (methodNameAndParamsT.contains(methParamTypes)) {
return;
}
methodNameAndParamsT.add(methParamTypes);
boolean hasGen = false;
for (String paramName : methodParamsAndTypes.keySet()) {
String typeOfParam = methodParamsAndTypes.get(paramName).acceptTV(new TypeToSignature());
System.out.println(typeOfParam);
if (genericsAndBounds.containsKey(typeOfParam) || typeOfParam.contains("$") || typeOfParam.contains("<")) {
hasGen = true;
break;
}
}
if (hasGen) {
Map<TPHConstraint, Set<String>> constraints = Simplify.simplifyConstraints(field, tphExtractor,
tphsClass);
SimplifyResultMethod sResMethod = new SimplifyResultMethod(methParamTypes, constraints);
simplifyResOfSourceFile.getSimplifyResultsByName(pkgName,className).getSimplifyResultForMethod().add(sResMethod);
}
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.ArgumentList)
*/
@Override
public void visit(ArgumentList argumentList) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.LambdaExpression)
*/
@Override
public void visit(LambdaExpression lambdaExpression) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.Assign)
*/
@Override
public void visit(Assign assign) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.BinaryExpr)
*/
@Override
public void visit(BinaryExpr binary) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.Block)
*/
@Override
public void visit(Block block) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.CastExpr)
*/
@Override
public void visit(CastExpr castExpr) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.EmptyStmt)
*/
@Override
public void visit(EmptyStmt emptyStmt) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.FieldVar)
*/
@Override
public void visit(FieldVar fieldVar) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.ForStmt)
*/
@Override
public void visit(ForStmt forStmt) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.IfStmt)
*/
@Override
public void visit(IfStmt ifStmt) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.InstanceOf)
*/
@Override
public void visit(InstanceOf instanceOf) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.LocalVar)
*/
@Override
public void visit(LocalVar localVar) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.LocalVarDecl)
*/
@Override
public void visit(LocalVarDecl localVarDecl) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.MethodCall)
*/
@Override
public void visit(MethodCall methodCall) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.NewClass)
*/
@Override
public void visit(NewClass methodCall) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.NewArray)
*/
@Override
public void visit(NewArray newArray) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.Return)
*/
@Override
public void visit(Return aReturn) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.ReturnVoid)
*/
@Override
public void visit(ReturnVoid aReturn) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.StaticClassName)
*/
@Override
public void visit(StaticClassName staticClassName) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.Super)
*/
@Override
public void visit(Super aSuper) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.This)
*/
@Override
public void visit(This aThis) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.WhileStmt)
*/
@Override
public void visit(WhileStmt whileStmt) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.DoStmt)
*/
@Override
public void visit(DoStmt whileStmt) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.AssignToField)
*/
@Override
public void visit(AssignToField assignLeftSide) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.parser.
* SyntaxTreeGenerator.AssignToLocal)
*/
@Override
public void visit(AssignToLocal assignLeftSide) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.SuperCall)
*/
@Override
public void visit(SuperCall superCall) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.ExpressionReceiver)
*/
@Override
public void visit(ExpressionReceiver expressionReceiver) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.UnaryExpr)
*/
@Override
public void visit(UnaryExpr unaryExpr) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see de.dhbwstuttgart.syntaxtree.StatementVisitor#visit(de.dhbwstuttgart.
* syntaxtree.statement.Literal)
*/
@Override
public void visit(Literal literal) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* GenericTypeVar)
*/
@Override
public void visit(GenericTypeVar genericTypeVar) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* FormalParameter)
*/
@Override
public void visit(FormalParameter formalParameter) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* GenericDeclarationList)
*/
@Override
public void visit(GenericDeclarationList genericTypeVars) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.
* Field)
*/
@Override
public void visit(Field field) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.type
* .RefType)
*/
@Override
public void visit(RefType refType) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.type
* .SuperWildcardType)
*/
@Override
public void visit(SuperWildcardType superWildcardType) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.type
* .TypePlaceholder)
*/
@Override
public void visit(TypePlaceholder typePlaceholder) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.type
* .ExtendsWildcardType)
*/
@Override
public void visit(ExtendsWildcardType extendsWildcardType) {
// TODO Auto-generated method stub
}
/*
* (non-Javadoc)
*
* @see
* de.dhbwstuttgart.syntaxtree.ASTVisitor#visit(de.dhbwstuttgart.syntaxtree.type
* .GenericRefType)
*/
@Override
public void visit(GenericRefType genericRefType) {
// TODO Auto-generated method stub
}
}

42
src/main/java/de/dhbwstuttgart/bytecode/simplifyRes/SimplifyResultMethod.java Normal file
View File

@ -0,0 +1,42 @@
package de.dhbwstuttgart.bytecode.simplifyRes;
import java.util.Map;
import java.util.Set;
import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
/**
* The simplify results of a methed
*
* @author fayez
*
*/
public class SimplifyResultMethod {
private final String methodID;
private final Map<TPHConstraint, Set<String>> conastraintsAndEqualTPHs;
public SimplifyResultMethod(String methodName, Map<TPHConstraint, Set<String>> conastraintsAndEqualTPHs) {
this.methodID = methodName;
this.conastraintsAndEqualTPHs = conastraintsAndEqualTPHs;
}
/**
* @return the methodName
*/
public String getMethodID() {
return methodID;
}
/**
* @return the conastraintsAndEqualTPHs
*/
public Map<TPHConstraint, Set<String>> getConastraintsAndEqualTPHs() {
return conastraintsAndEqualTPHs;
}
}

45
src/main/java/de/dhbwstuttgart/bytecode/simplifyRes/SimplifyResultSourceFile.java Normal file
View File

@ -0,0 +1,45 @@
/**
*
*/
package de.dhbwstuttgart.bytecode.simplifyRes;
import java.util.ArrayList;
import java.util.List;
import java.util.NoSuchElementException;
/**
* The simplify results of a source file (package)
*
* @author fayez
*
*/
public class SimplifyResultSourceFile {
private String pkgName;
private final List<SimplifyResultClass> simplifyResForSF = new ArrayList<>();
/**
* @param pkgName
*/
public SimplifyResultSourceFile(String pkgName) {
this.pkgName = pkgName;
}
public List<SimplifyResultClass> getSimplifyResForSF() {
return simplifyResForSF;
}
/**
* Appends the simplify results of a class to simplifyResForSF
*
* @param sResClass simplify results of a class to added
*/
public void addSimplifyResultClass(SimplifyResultClass sResClass) {
simplifyResForSF.add(sResClass);
}
public SimplifyResult getSimplifyResultsByName(String pkgName, String name) {
if(this.pkgName.equals(pkgName))
return simplifyResForSF.stream().filter(sr->sr.getClassName().equals(name)).findAny().get().getSimplifyResults();
throw new NoSuchElementException("Simplify results for the class "+pkgName+"."+name+" are not found");
}
}

88
src/main/java/de/dhbwstuttgart/bytecode/simplifyRes/TypeVariableFinder.java Normal file
View File

@ -0,0 +1,88 @@
/**
*
*/
package de.dhbwstuttgart.bytecode.simplifyRes;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.objectweb.asm.Type;
import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
import de.dhbwstuttgart.bytecode.descriptor.TypeToDescriptor;
import de.dhbwstuttgart.syntaxtree.ClassOrInterface;
import de.dhbwstuttgart.syntaxtree.GenericTypeVar;
import de.dhbwstuttgart.syntaxtree.type.GenericRefType;
import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
/**
* @author fayez
*
*/
public class TypeVariableFinder {
private ClassOrInterface classOrInterface;
private Map<String, String> genericsAndBounds;
private List<String> tphsClass;
private List<TPHConstraint> consClass;
public TypeVariableFinder(ClassOrInterface classOrInterface, Map<String, String> genericsAndBounds,
List<String> tphsClass, List<TPHConstraint> consClass) {
this.classOrInterface = classOrInterface;
this.genericsAndBounds = genericsAndBounds;
this.tphsClass = tphsClass;
this.consClass = consClass;
}
public void findTV() {
Iterator<GenericTypeVar> itr = classOrInterface.getGenerics().iterator();
while(itr.hasNext()) {
GenericTypeVar g = itr.next();
getBoundsOfTypeVar(g,genericsAndBounds);
}
if(!consClass.isEmpty()) {
ArrayList<String> types = new ArrayList<>();
ArrayList<String> superTypes = new ArrayList<>();
for(TPHConstraint cons : consClass) {
types.add(cons.getLeft());
superTypes.add(cons.getRight());
}
for(TPHConstraint cons : consClass) {
String t = cons.getLeft()+"$";
String bound = cons.getRight()+"$";
genericsAndBounds.put(t, bound);
}
for(TPHConstraint cons : consClass) {
if(!types.contains(cons.getRight()) && !genericsAndBounds.keySet().contains(cons.getRight()+"$")) {
String t = cons.getRight()+"$";
String bound = Type.getInternalName(Object.class);
genericsAndBounds.put(t, bound);
}
}
}
}
/**
* Get bounds of type variable
* @param g type variable
* @param genAndBounds
*/
private void getBoundsOfTypeVar(GenericTypeVar g, Map<String, String> genAndBounds) {
Iterator<? extends RefTypeOrTPHOrWildcardOrGeneric> bItr = g.getBounds().iterator();
while(bItr.hasNext()) {
RefTypeOrTPHOrWildcardOrGeneric b =bItr.next();
String boundDesc = b.acceptTV(new TypeToDescriptor());
// Ensure that <...> extends java.lang.Object OR ...
genAndBounds.put(g.getName(), boundDesc);
}
}
}

44
src/main/java/de/dhbwstuttgart/bytecode/utilities/Simplify.java
View File

@ -6,6 +6,7 @@ import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.objectweb.asm.Type;
@ -19,8 +20,8 @@ import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
public class Simplify {
public static HashMap<TPHConstraint, HashSet<String>> simplifyConstraints(Method method, TPHExtractor tphExtractor,
ArrayList<String> tphsClass) {
public static Map<TPHConstraint, Set<String>> simplifyConstraints(Method method, TPHExtractor tphExtractor,
List<String> tphsClass) {
// 1. check if there are any simple cycles like L<R and R<L:
// a) yes => set L=R and:
// * remove both constraints
@ -89,7 +90,7 @@ public class Simplify {
System.out.println("AFTER DELETE ALL CONST: " + allCons.size());
allCons.forEach(c -> System.out.println(c.toString()));
System.out.println("----------------");
HashMap<TPHConstraint, HashSet<String>> result = new HashMap<>();
Map<TPHConstraint, Set<String>> result = new HashMap<>();
// check if there is any long cycle (e.g. A<B<C<A)
@ -419,7 +420,7 @@ public class Simplify {
for (TPHConstraint c : allCons) {
if (c.getRel() == Relation.EQUAL) {
if (!isTPHInResEqual(result, c.getLeft())) {
HashSet<String> equalTPHs = getEqualsTPHs(result, c);
Set<String> equalTPHs = getEqualsTPHs(result, c);
TPHConstraint constraint = getKeyConstraint(result, c);
equalTPHs.add(c.getLeft());
equalTPHs.add(c.getRight());
@ -454,6 +455,11 @@ public class Simplify {
return result;
}
private static boolean isTPHInResEqual(Map<TPHConstraint, Set<String>> result, String left) {
// TODO Auto-generated method stub
return false;
}
private static boolean containsConstraint(ArrayList<TPHConstraint> allCons, TPHConstraint c) {
for(TPHConstraint con:allCons) {
if(c.getLeft().equals(con.getLeft()) && c.getRight().equals(c.getRight())) {
@ -475,8 +481,8 @@ public class Simplify {
}
public static HashMap<TPHConstraint, HashSet<String>> simplifyConstraintsClass(TPHExtractor tphExtractor,
ArrayList<String> tphsClass) {
public static Map<TPHConstraint, Set<String>> simplifyConstraintsClass(TPHExtractor tphExtractor,
List<String> tphsClass) {
// all constraints that will be simplified
ArrayList<TPHConstraint> allCons = tphExtractor.allCons;
ArrayList<TPHConstraint> consToRemove = new ArrayList<>();
@ -505,7 +511,7 @@ public class Simplify {
int size = allCons.size();
HashMap<TPHConstraint, HashSet<String>> result = new HashMap<>();
HashMap<TPHConstraint, Set<String>> result = new HashMap<>();
// check if there is any long cycle (e.g. A<B<C<A)
@ -590,7 +596,7 @@ public class Simplify {
for (TPHConstraint c : allCons) {
if (c.getRel() == Relation.EQUAL) {
if (!isTPHInResEqual(result, c.getLeft())) {
HashSet<String> equalTPHs = getEqualsTPHs(result, c);
Set<String> equalTPHs = getEqualsTPHs(result, c);
TPHConstraint constraint = getKeyConstraint(result, c);
equalTPHs.add(c.getLeft());
equalTPHs.add(c.getRight());
@ -721,8 +727,8 @@ public class Simplify {
return false;
}
private static boolean isTphInEqualSet(HashMap<TPHConstraint, HashSet<String>> result, String tph) {
for (HashSet<String> hs : result.values()) {
private static boolean isTphInEqualSet(Map<TPHConstraint, Set<String>> result, String tph) {
for (Set<String> hs : result.values()) {
if (hs.contains(tph))
return true;
}
@ -766,8 +772,8 @@ public class Simplify {
return null;
}
private static boolean isTPHInResEqual(HashMap<TPHConstraint, HashSet<String>> result, String left) {
for (HashSet<String> eq : result.values()) {
private static boolean isTPHInResEqual(HashMap<TPHConstraint,Set<String>> result, String left) {
for (Set<String> eq : result.values()) {
if (eq.contains(left)) {
return true;
}
@ -796,8 +802,8 @@ public class Simplify {
}
}
public static HashMap<TPHConstraint, HashSet<String>> simplifyContraints(
HashMap<TPHConstraint, HashSet<String>> allConstraints) {
public static Map<TPHConstraint, Set<String>> simplifyContraints(
Map<TPHConstraint, Set<String>> allConstraints) {
// 1. check if there are any cycles like L<R and R<L:
// a) yes => set L=R and:
// * remove both constraints
@ -842,11 +848,11 @@ public class Simplify {
System.out.println("AFTER DELETE ALL CONST: " + allCons.size());
allCons.forEach(c -> System.out.println(c.toString()));
System.out.println("----------------");
HashMap<TPHConstraint, HashSet<String>> result = new HashMap<>();
Map<TPHConstraint, Set<String>> result = new HashMap<>();
for (TPHConstraint c : allCons) {
if (c.getRel() == Relation.EQUAL) {
HashSet<String> equalTPHs = getEqualsTPHs(result, c);
Set<String> equalTPHs = getEqualsTPHs(result, c);
TPHConstraint constraint = getKeyConstraint(result, c);
equalTPHs.add(c.getLeft());
equalTPHs.add(c.getRight());
@ -986,7 +992,7 @@ public class Simplify {
return null;
}
private static boolean isTPHInConstraint(HashMap<TPHConstraint, HashSet<String>> result, String sub) {
private static boolean isTPHInConstraint(Map<TPHConstraint, Set<String>> result, String sub) {
for (TPHConstraint c : result.keySet()) {
if (c.getLeft().equals(sub))
return true;
@ -1017,7 +1023,7 @@ public class Simplify {
return new ExtendsConstraint(toFind.getRight(), Type.getInternalName(Object.class), Relation.EXTENDS);
}
private static TPHConstraint getKeyConstraint(HashMap<TPHConstraint, HashSet<String>> result,
private static TPHConstraint getKeyConstraint(Map<TPHConstraint, Set<String>> result,
TPHConstraint toFind) {
for (TPHConstraint c : result.keySet()) {
@ -1028,7 +1034,7 @@ public class Simplify {
return new ExtendsConstraint(toFind.getRight(), Type.getInternalName(Object.class), Relation.EXTENDS);
}
private static HashSet<String> getEqualsTPHs(HashMap<TPHConstraint, HashSet<String>> result, TPHConstraint toFind) {
private static Set<String> getEqualsTPHs(Map<TPHConstraint, Set<String>> result, TPHConstraint toFind) {
for (TPHConstraint c : result.keySet()) {
if (c.containTPH(toFind.getLeft()) || c.containTPH(toFind.getRight()))
return result.get(c);

42
src/main/java/de/dhbwstuttgart/bytecode/utilities/SimplifyResult.java
View File

@ -1,42 +0,0 @@
/**
*
*/
package de.dhbwstuttgart.bytecode.utilities;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
/**
* @author fayez
*
*/
public class SimplifyResult {
private final ArrayList<TPHConstraint> classConstraints;
private final ArrayList<String> tphsClass;
private final HashMap<String, HashMap<TPHConstraint, HashSet<String>>> methodsConstraints;
public SimplifyResult(ArrayList<TPHConstraint> classConstraints, ArrayList<String> tphsClass,
HashMap<String, HashMap<TPHConstraint, HashSet<String>>> methodsConstraints) {
super();
this.classConstraints = classConstraints;
this.tphsClass = tphsClass;
this.methodsConstraints = methodsConstraints;
}
public ArrayList<TPHConstraint> getClassConstraints() {
return classConstraints;
}
public HashMap<String, HashMap<TPHConstraint, HashSet<String>>> getMethodsConstraints() {
return methodsConstraints;
}
public ArrayList<String> getTphsClass() {
return tphsClass;
}
}

33
src/main/java/de/dhbwstuttgart/core/JavaTXCompiler.java
View File

@ -4,7 +4,9 @@ package de.dhbwstuttgart.core;
import de.dhbwstuttgart.bytecode.BytecodeGen;
import de.dhbwstuttgart.bytecode.Exception.BytecodeGeneratorError;
import de.dhbwstuttgart.bytecode.utilities.SimplifyResult;
import de.dhbwstuttgart.bytecode.simplifyRes.SimplifyResult;
import de.dhbwstuttgart.bytecode.simplifyRes.SimplifyResultFinder;
import de.dhbwstuttgart.bytecode.simplifyRes.SimplifyResultSourceFile;
import de.dhbwstuttgart.environment.CompilationEnvironment;
import de.dhbwstuttgart.parser.JavaTXParser;
import de.dhbwstuttgart.parser.NullToken;
@ -654,16 +656,39 @@ public class JavaTXCompiler {
SourceFile ret = generator.convert(tree, environment.packageCrawler);
return ret;
}
public List<SimplifyResultSourceFile> getSimplifyResultsForAllSourceFiles() throws ClassNotFoundException{
List<SimplifyResultSourceFile> result = new ArrayList<>();
for(File f : sourceFiles.keySet()) {
SourceFile sf = sourceFiles.get(f);
List<ResultSet> typeinferenceResult = this.typeInference();
SimplifyResultFinder sResFinder = new SimplifyResultFinder(sf, typeinferenceResult);
SimplifyResultSourceFile simplifyResOfSF = sResFinder.findSimplifyRes();
result.add(simplifyResOfSF);
}
return result;
}
public List<SimplifyResultSourceFile> getSimplifyResultsForAllSourceFiles(List<ResultSet> typeinferenceResult) throws ClassNotFoundException{
List<SimplifyResultSourceFile> result = new ArrayList<>();
for(File f : sourceFiles.keySet()) {
SourceFile sf = sourceFiles.get(f);
SimplifyResultFinder sResFinder = new SimplifyResultFinder(sf, typeinferenceResult);
SimplifyResultSourceFile simplifyResOfSF = sResFinder.findSimplifyRes();
result.add(simplifyResOfSF);
}
return result;
}
// um pfad erweitern
public void generateBytecode(String path) throws ClassNotFoundException, IOException, BytecodeGeneratorError {
for(File f : sourceFiles.keySet()) {
HashMap<String,byte[]> classFiles = new HashMap<>();
SourceFile sf = sourceFiles.get(f);
List<ResultSet> typeinferenceResult = this.typeInference();
BytecodeGen bytecodeGen = new BytecodeGen(classFiles,typeinferenceResult,sf,path);
// BytecodeGen bytecodeGen = new BytecodeGen(classFiles,typeinferenceResult.get(0));
List<SimplifyResultSourceFile> simplifyResultsForAllSourceFiles = getSimplifyResultsForAllSourceFiles(typeinferenceResult);
BytecodeGen bytecodeGen = new BytecodeGen(classFiles,typeinferenceResult,simplifyResultsForAllSourceFiles,sf,path);
bytecodeGen.visit(sf);
this.simplifyResultsSF.add(bytecodeGen.getSimplifyResultsList());
this.writeClassFile(bytecodeGen.getClassFiles(), path);
}
}

3
src/test/java/bytecode/FieldTphConsMethTest.java
View File

@ -28,12 +28,13 @@ public class FieldTphConsMethTest {
path = System.getProperty("user.dir")+"/src/test/resources/bytecode/javFiles/FieldTphConsMeth.jav";
fileToTest = new File(path);
compiler = new JavaTXCompiler(fileToTest);
compiler.getSimplifyResultsForAllSourceFiles();
compiler.generateBytecode(System.getProperty("user.dir")+"/src/test/resources/testBytecode/generatedBC/");
pathToClassFile = System.getProperty("user.dir")+"/src/test/resources/testBytecode/generatedBC/";
loader = new URLClassLoader(new URL[] {new URL("file://"+pathToClassFile)});
classToTest = loader.loadClass("FieldTphConsMeth");
}
@Test
public void test() throws Exception {
instanceOfClass = classToTest.getConstructor(Object.class).newInstance("C");