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Work on Bug #332
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This commit is contained in:
Daniel Holle 2024-06-13 17:23:19 +02:00
parent 091a6b8f1f
commit ec92b5d5e1
4 changed files with 96 additions and 75 deletions
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15
resources/bytecode/javFiles/Bug332.jav Normal file
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@ -0,0 +1,15 @@
import java.lang.Object;
interface Visitor {
public void visit(Object obj);
public void visit(ClassA a);
}
class ClassA {
void accept(Visitor v) {
v.visit(this);
}
}
public class Bug332 {
}

144
src/main/java/de/dhbwstuttgart/target/generate/ASTToTargetAST.java
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@ -5,7 +5,6 @@ import de.dhbwstuttgart.bytecode.FunNGenerator;
import de.dhbwstuttgart.core.JavaTXCompiler;
import de.dhbwstuttgart.environment.ByteArrayClassLoader;
import de.dhbwstuttgart.environment.IByteArrayClassLoader;
import de.dhbwstuttgart.exceptions.NotImplementedException;
import de.dhbwstuttgart.parser.NullToken;
import de.dhbwstuttgart.parser.scope.JavaClassName;
import de.dhbwstuttgart.syntaxtree.*;
@ -18,23 +17,25 @@ import de.dhbwstuttgart.target.tree.expression.*;
import de.dhbwstuttgart.target.tree.type.*;
import de.dhbwstuttgart.typeinference.result.*;
import javax.sql.rowset.RowSetWarning;
import java.lang.annotation.Target;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import java.util.stream.StreamSupport;
/**
* @author dholle
*/
public class ASTToTargetAST {
record SignaturePair(TypePlaceholder signature, RefTypeOrTPHOrWildcardOrGeneric parameter) {};
record SignaturePairTarget(TargetType signature, TargetType parameter) {}
public static RefType OBJECT = ASTFactory.createObjectType(); // TODO It would be better if I could call this directly but the hashcode seems to change
protected List<Generics> all;
public Generics generics;
final Map<ClassOrInterface, Set<GenericTypeVar>> userDefinedGenerics = new HashMap<>();
final Map<Method, Set<SignaturePair>> tphsInMethods = new HashMap<>();
private Method currentMethod;
public final JavaTXCompiler compiler;
@ -78,6 +79,12 @@ public class ASTToTargetAST {
this.generics = all.get(0);
}
public void addSignaturePair(TypePlaceholder signature, RefTypeOrTPHOrWildcardOrGeneric parameter) {
var set = tphsInMethods.getOrDefault(currentMethod, new HashSet<>());
set.add(new SignaturePair(signature, parameter));
tphsInMethods.put(currentMethod, set);
}
Optional<Method> findMethod(ClassOrInterface owner, String name, List<TargetType> argumentList) {
Optional<Method> method = Optional.empty();
while (method.isEmpty()) {
@ -131,6 +138,40 @@ public class ASTToTargetAST {
return ret;
}
public List<List<TargetMethod>> groupOverloads(ClassOrInterface input, List<Method> methods) {
var res = new ArrayList<List<TargetMethod>>();
for (var method : methods) {
// Convert all methods
var methodsWithTphs = convert(input, method);
// Then check for methods with the same signature
var mapOfSignatures = new HashMap<TargetMethod.Signature, List<MethodWithTphs>>();
for (var m : methodsWithTphs) {
var methodsWithSameSignature = mapOfSignatures.getOrDefault(m.method.signature(), new ArrayList<>());
methodsWithSameSignature.add(m);
mapOfSignatures.put(m.method.signature(), methodsWithSameSignature);
}
var resMethods = new HashSet<TargetMethod>();
for (var methodsWithSignature : mapOfSignatures.values()) {
outer: for (var m1 : methodsWithSignature) {
for (var m2 : methodsWithSignature) {
for (var i = 0; i < m1.args.size(); i++) {
var arg1 = m1.args.get(i);
var arg2 = m2.args.get(i);
if (arg1.parameter.equals(arg2.parameter)) {
if (isSupertype(arg1.signature, arg2.signature) &&
!arg1.signature.equals(arg2.signature)) continue outer;
}
}
}
resMethods.add(m1.method);
}
}
res.add(resMethods.stream().toList());
}
return res;
}
public TargetStructure convert(ClassOrInterface input) {
Set<TargetGeneric> javaGenerics = new HashSet<>();
Set<TargetGeneric> txGenerics = new HashSet<>();
@ -161,11 +202,11 @@ public class ASTToTargetAST {
var superInterfaces = input.getSuperInterfaces().stream().map(clazz -> convert(clazz, generics.javaGenerics)).toList();
var constructors = input.getConstructors().stream().map(constructor -> this.convert(input, constructor, finalFieldInitializer)).flatMap(List::stream).toList();
var fields = input.getFieldDecl().stream().map(this::convert).toList();
var methods = groupOverloads(input.getMethods()).stream().map(m -> convert(input, m)).flatMap(Set::stream).toList();
var methods = groupOverloads(input, input.getMethods()).stream().flatMap(List::stream).toList();
TargetMethod staticConstructor = null;
if (input.getStaticInitializer().isPresent())
staticConstructor = this.convert(input, input.getStaticInitializer().get()).stream().findFirst().orElseThrow();
staticConstructor = this.convert(input, input.getStaticInitializer().get()).stream().findFirst().orElseThrow().method;
if (input instanceof Record)
return new TargetRecord(input.getModifiers(), input.getClassName(), javaGenerics, txGenerics, superInterfaces, constructors, staticConstructor, fields, methods);
@ -206,6 +247,7 @@ public class ASTToTargetAST {
generics = all.get(0);
List<TargetConstructor> result = new ArrayList<>();
Set<List<MethodParameter>> parameterSet = new HashSet<>();
this.currentMethod = input;
for (var s : all) {
generics = s;
@ -225,56 +267,6 @@ public class ASTToTargetAST {
return result;
}
/**
* This only considers type patterns, all other methods aren't grouped together
* @param a
* @param b
* @return
*/
private boolean signatureEquals(Method a, Method b) {
if (!a.name.equals(b.name)) return false;
var para = a.getParameterList().getFormalparalist();
var parb = b.getParameterList().getFormalparalist();
if (para.size() != parb.size()) return false;
for (var i = 0; i < para.size(); i++) {
var pa = para.get(i);
var pb = parb.get(i);
if (pa instanceof RecordPattern rpa) {
if (pb instanceof RecordPattern rpb) {
if (rpa.getType().equals(rpb.getType())) continue;
}
return false;
} else if (pa.getType().equals(pb.getType())) {
continue;
}
return false;
}
return true;
}
// TODO Nested patterns
private List<List<Method>> groupOverloads(List<Method> input) {
var done = new HashSet<Method>();
var res = new ArrayList<List<Method>>();
for (var method : input) {
if (done.contains(method)) continue;
var overloads = new ArrayList<Method>();
overloads.add(method);
done.add(method);
for (var method2 : input) {
if (!done.contains(method2) && signatureEquals(method, method2)) {
done.add(method2);
overloads.add(method2);
}
}
res.add(overloads);
}
return res;
}
private String encodeName(String name, ParameterList params) {
var res = new StringBuilder();
res.append(name);
@ -290,9 +282,9 @@ public class ASTToTargetAST {
return res.toString();
}
private Set<TargetMethod> convert(ClassOrInterface clazz, List<Method> overloadedMethods) {
private List<TargetMethod> convert(ClassOrInterface clazz, List<Method> overloadedMethods) {
if (overloadedMethods.size() == 1) {
return convert(clazz, overloadedMethods.getFirst());
return convert(clazz, overloadedMethods.getFirst()).stream().map(m -> m.method()).toList();
}
var methods = new ArrayList<Method>();
for (var method : overloadedMethods) {
@ -329,10 +321,11 @@ public class ASTToTargetAST {
var entryPoint = new Method(template.modifier, template.name, template.getReturnType(), params, block, template.getGenerics(), new NullToken());
res.add(entryPoint); // TODO*/
var res = new HashSet<TargetMethod>();
var res = new ArrayList<TargetMethod>();
for (var method : methods) {
var overloads = convert(clazz, method);
for (var overload : overloads) {
for (var m : overloads) {
var overload = m.method;
if (res.contains(overload)) throw new CodeGenException("Duplicate method found: " + overload.name() + " with signature " + overload.signature().getSignature());
res.add(overload);
}
@ -381,10 +374,12 @@ public class ASTToTargetAST {
}).findFirst();
}
private Set<TargetMethod> convert(ClassOrInterface currentClass, Method method) {
generics = all.get(0);
Set<TargetMethod> result = new HashSet<>();
Set<List<MethodParameter>> parameterSet = new HashSet<>();
record MethodWithTphs(TargetMethod method, List<SignaturePairTarget> args) {}
private List<MethodWithTphs> convert(ClassOrInterface currentClass, Method method) {
generics = all.getFirst();
List<MethodWithTphs> result = new ArrayList<>();
this.currentMethod = method;
for (var s : all) {
generics = s;
@ -402,19 +397,18 @@ public class ASTToTargetAST {
}
}
List<MethodParameter> finalParams = params;
if (parameterSet.stream().noneMatch(p -> p.equals(finalParams))) {
List<MethodParameter> txParams = convert(method.getParameterList(), this.generics.txGenerics);
List<MethodParameter> txParams = convert(method.getParameterList(), this.generics.txGenerics);
var javaMethodGenerics = collectMethodGenerics(currentClass, generics.javaGenerics(), javaGenerics, method);
var txMethodGenerics = collectMethodGenerics(currentClass, generics.txGenerics(), txGenerics, method);
var javaMethodGenerics = collectMethodGenerics(currentClass, generics.javaGenerics(), javaGenerics, method);
var txMethodGenerics = collectMethodGenerics(currentClass, generics.txGenerics(), txGenerics, method);
var javaSignature = new TargetMethod.Signature(javaMethodGenerics, params, returnType);
var txSignature = new TargetMethod.Signature(txMethodGenerics, txParams, convert(method.getReturnType(), this.generics.txGenerics));
var newMethod = new TargetMethod(method.modifier, method.name, convert(method.block), javaSignature, txSignature);
result.add(newMethod);
parameterSet.add(params);
}
var javaSignature = new TargetMethod.Signature(javaMethodGenerics, params, returnType);
var txSignature = new TargetMethod.Signature(txMethodGenerics, txParams, convert(method.getReturnType(), this.generics.txGenerics));
var newMethod = new TargetMethod(method.modifier, method.name, convert(method.block), javaSignature, txSignature);
var concreteParams = tphsInMethods.getOrDefault(method, new HashSet<>()).stream().map(sig -> new SignaturePairTarget(convert(sig.signature), convert(sig.parameter))).toList();
result.add(new MethodWithTphs(newMethod, concreteParams));
}
return result;

5
src/main/java/de/dhbwstuttgart/target/generate/StatementToTargetExpression.java
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@ -208,6 +208,11 @@ public class StatementToTargetExpression implements ASTVisitor {
var isPrivate = false;
var signature = methodCall.signatureArguments().stream().map(converter::convert).toList();
// Add used TPHs to containing method
for (var i = 0; i < methodCall.signatureArguments().size(); i++) {
converter.addSignaturePair(methodCall.signatureArguments().get(i), methodCall.arglist.getArguments().get(i).getType());
}
var receiverClass = converter.compiler.getClass(receiverName);
if (methodCall.receiver instanceof ExpressionReceiver expressionReceiver && expressionReceiver.expr instanceof This) {
if (receiverClass == null) throw new DebugException("Class " + receiverName + " does not exist!");

7
src/test/java/TestComplete.java
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@ -1126,6 +1126,13 @@ public class TestComplete {
var instance = clazz.getDeclaredConstructor().newInstance();
}
@Test
public void testBug332() throws Exception {
var classFiles = generateClassFiles(new ByteArrayClassLoader(), "Bug332.jav");
var clazz = classFiles.get("Bug332");
var instance = clazz.getDeclaredConstructor().newInstance();
}
@Test
public void testBug333() throws Exception {
var classFiles = generateClassFiles(new ByteArrayClassLoader(), "Bug333.jav");