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-rw-r--r--src/eclipseAgent/lombok/eclipse/agent/PatchDelegate.java163
1 files changed, 153 insertions, 10 deletions
diff --git a/src/eclipseAgent/lombok/eclipse/agent/PatchDelegate.java b/src/eclipseAgent/lombok/eclipse/agent/PatchDelegate.java
index dd55c4d9..a63617d4 100644
--- a/src/eclipseAgent/lombok/eclipse/agent/PatchDelegate.java
+++ b/src/eclipseAgent/lombok/eclipse/agent/PatchDelegate.java
@@ -32,6 +32,7 @@ import java.util.Iterator;
import java.util.List;
import java.util.Set;
+import lombok.core.AST.Kind;
import lombok.eclipse.Eclipse;
import lombok.eclipse.EclipseAST;
import lombok.eclipse.EclipseNode;
@@ -70,6 +71,8 @@ import org.eclipse.jdt.internal.compiler.ast.TypeReference;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding;
import org.eclipse.jdt.internal.compiler.lookup.ArrayBinding;
+import org.eclipse.jdt.internal.compiler.lookup.BaseTypeBinding;
+import org.eclipse.jdt.internal.compiler.lookup.Binding;
import org.eclipse.jdt.internal.compiler.lookup.ClassScope;
import org.eclipse.jdt.internal.compiler.lookup.MemberTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
@@ -78,6 +81,9 @@ import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeConstants;
+import org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding;
+import org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding;
+import org.eclipse.jdt.internal.compiler.lookup.WildcardBinding;
public class PatchDelegate {
static void addPatches(ScriptManager sm, boolean ecj) {
@@ -95,7 +101,7 @@ public class PatchDelegate {
if (decl == null) return false;
CompilationUnitDeclaration cud = null;
- EclipseAST astNode = null;
+ EclipseAST eclipseAst = null;
if (decl.fields != null) for (FieldDeclaration field : decl.fields) {
if (field.annotations == null) continue;
@@ -107,7 +113,7 @@ public class PatchDelegate {
if (cud == null) {
cud = scope.compilationUnitScope().referenceContext;
- astNode = TransformEclipseAST.getAST(cud);
+ eclipseAst = TransformEclipseAST.getAST(cud);
}
List<ClassLiteralAccess> rawTypes = new ArrayList<ClassLiteralAccess>();
@@ -136,7 +142,7 @@ public class PatchDelegate {
removeExistingMethods(methodsToDelegate, decl, scope);
- generateDelegateMethods(astNode.get(decl), methodsToDelegate, field.name, ann);
+ generateDelegateMethods(eclipseAst.get(decl), methodsToDelegate, field.name, eclipseAst.get(ann));
}
}
@@ -169,11 +175,11 @@ public class PatchDelegate {
}
}
- private static void generateDelegateMethods(EclipseNode typeNode, List<BindingPair> methods, char[] delegate, ASTNode source) {
+ private static void generateDelegateMethods(EclipseNode typeNode, List<BindingPair> methods, char[] delegate, EclipseNode annNode) {
CompilationUnitDeclaration top = (CompilationUnitDeclaration) typeNode.top().get();
for (BindingPair pair : methods) {
- MethodDeclaration method = generateDelegateMethod(delegate, pair, top.compilationResult, source);
- EclipseHandlerUtil.injectMethod(typeNode, method);
+ MethodDeclaration method = createDelegateMethod(delegate, typeNode, pair, top.compilationResult, annNode);
+ if (method != null) EclipseHandlerUtil.injectMethod(typeNode, method);
}
}
@@ -190,7 +196,147 @@ public class PatchDelegate {
return false;
}
- private static MethodDeclaration generateDelegateMethod(char[] name, BindingPair pair, CompilationResult compilationResult, ASTNode source) {
+ public static void checkConflictOfTypeVarNames(BindingPair binding, EclipseNode typeNode) throws CantMakeDelegates {
+ TypeVariableBinding[] typeVars = binding.parameterized.typeVariables();
+ if (typeVars == null || typeVars.length == 0) return;
+
+ Set<String> usedInOurType = new HashSet<String>();
+ EclipseNode enclosingType = typeNode;
+ while (enclosingType != null) {
+ if (enclosingType.getKind() == Kind.TYPE) {
+ TypeParameter[] typeParameters = ((TypeDeclaration)enclosingType.get()).typeParameters;
+ if (typeParameters != null) {
+ for (TypeParameter param : typeParameters) {
+ if (param.name != null) usedInOurType.add(new String(param.name));
+ }
+ }
+ }
+ enclosingType = enclosingType.up();
+ }
+
+ Set<String> usedInMethodSig = new HashSet<String>();
+ for (TypeVariableBinding var : typeVars) {
+ char[] sourceName = var.sourceName();
+ if (sourceName != null) usedInMethodSig.add(new String(sourceName));
+ }
+
+ usedInMethodSig.retainAll(usedInOurType);
+ if (usedInMethodSig.isEmpty()) return;
+
+ // We might be delegating a List<T>, and we are making method <T> toArray(). A conflict is possible.
+ // But only if the toArray method also uses type vars from its class, otherwise we're only shadowing,
+ // which is okay as we'll add a @SuppressWarnings.
+
+ TypeVarFinder finder = new TypeVarFinder();
+ finder.visitRaw(binding.base);
+
+ Set<String> names = new HashSet<String>(finder.getTypeVariables());
+ names.removeAll(usedInMethodSig);
+ if (!names.isEmpty()) {
+ // We have a confirmed conflict. We could dig deeper as this may still be a false alarm, but its already an exceedingly rare case.
+ CantMakeDelegates cmd = new CantMakeDelegates();
+ cmd.conflicted = usedInMethodSig;
+ throw cmd;
+ }
+ }
+
+ public static class CantMakeDelegates extends Exception {
+ public Set<String> conflicted;
+ }
+
+ public static class TypeVarFinder extends EclipseTypeBindingScanner {
+ private Set<String> typeVars = new HashSet<String>();
+
+ public Set<String> getTypeVariables() {
+ return typeVars;
+ }
+
+ @Override public void visitTypeVariable(TypeVariableBinding binding) {
+ if (binding.sourceName != null) typeVars.add(new String(binding.sourceName));
+ super.visitTypeVariable(binding);
+ }
+ }
+
+ public abstract static class EclipseTypeBindingScanner {
+ public void visitRaw(Binding binding) {
+ if (binding == null) return;
+ if (binding instanceof MethodBinding) visitMethod((MethodBinding) binding);
+ if (binding instanceof BaseTypeBinding) visitBase((BaseTypeBinding) binding);
+ if (binding instanceof ArrayBinding) visitArray((ArrayBinding) binding);
+ if (binding instanceof UnresolvedReferenceBinding) visitUnresolved((UnresolvedReferenceBinding) binding);
+ if (binding instanceof WildcardBinding) visitWildcard((WildcardBinding) binding);
+ if (binding instanceof TypeVariableBinding) visitTypeVariable((TypeVariableBinding) binding);
+ if (binding instanceof ParameterizedTypeBinding) visitParameterized((ParameterizedTypeBinding) binding);
+ if (binding instanceof ReferenceBinding) visitReference((ReferenceBinding) binding);
+ }
+
+ public void visitReference(ReferenceBinding binding) {
+ }
+
+ public void visitParameterized(ParameterizedTypeBinding binding) {
+ visitRaw(binding.genericType());
+ TypeVariableBinding[] typeVars = binding.typeVariables();
+ if (typeVars != null) for (TypeVariableBinding child : typeVars) {
+ visitRaw(child);
+ }
+ }
+
+ public void visitTypeVariable(TypeVariableBinding binding) {
+ visitRaw(binding.superclass);
+ ReferenceBinding[] supers = binding.superInterfaces();
+ if (supers != null) for (ReferenceBinding child : supers) {
+ visitRaw(child);
+ }
+ }
+
+ public void visitWildcard(WildcardBinding binding) {
+ visitRaw(binding.bound);
+ }
+
+ public void visitUnresolved(UnresolvedReferenceBinding binding) {
+ }
+
+ public void visitArray(ArrayBinding binding) {
+ visitRaw(binding.leafComponentType());
+ }
+
+ public void visitBase(BaseTypeBinding binding) {
+ }
+
+ public void visitMethod(MethodBinding binding) {
+ if (binding.parameters != null) for (TypeBinding child : binding.parameters) {
+ visitRaw(child);
+ }
+ visitRaw(binding.returnType);
+ if (binding.thrownExceptions != null) for (TypeBinding child : binding.thrownExceptions) {
+ visitRaw(child);
+ }
+ TypeVariableBinding[] typeVars = binding.typeVariables();
+ if (typeVars != null) for (TypeVariableBinding child : typeVars) {
+ visitRaw(child.superclass);
+ ReferenceBinding[] supers = child.superInterfaces();
+ if (supers != null) for (ReferenceBinding child2 : supers) {
+ visitRaw(child2);
+ }
+ }
+ }
+ }
+
+ private static MethodDeclaration createDelegateMethod(char[] name, EclipseNode typeNode, BindingPair pair, CompilationResult compilationResult, EclipseNode annNode) {
+ /* public <T, U, ...> ReturnType methodName(ParamType1 name1, ParamType2 name2, ...) throws T1, T2, ... {
+ * (return) delegate.<T, U>methodName(name1, name2);
+ * }
+ */
+
+ try {
+ checkConflictOfTypeVarNames(pair, typeNode);
+ } catch (CantMakeDelegates e) {
+ annNode.addError("There's a conflict in the names of type parameters. Fix it by renaming the following type parameters of your class: " + e.conflicted);
+ return null;
+ }
+
+ ASTNode source = annNode.get();
+
int pS = source.sourceStart, pE = source.sourceEnd;
MethodBinding binding = pair.parameterized;
@@ -315,7 +461,6 @@ public class PatchDelegate {
}
private static void addAllMethodBindings(List<BindingPair> list, TypeBinding binding, Set<String> banList) {
- System.out.println("adding method bindings for type: " + binding);
if (binding == null) return;
TypeBinding inner;
@@ -338,7 +483,6 @@ public class PatchDelegate {
}
if (binding instanceof ReferenceBinding) {
- System.out.println("isRefBinding: " + binding.getClass());
ReferenceBinding rb = (ReferenceBinding) binding;
MethodBinding[] parameterizedSigs = rb.availableMethods();
MethodBinding[] baseSigs = parameterizedSigs;
@@ -353,7 +497,6 @@ public class PatchDelegate {
for (int i = 0; i < parameterizedSigs.length; i++) {
MethodBinding mb = parameterizedSigs[i];
String sig = printSig(mb);
- System.out.println("Method: " + sig);
if (mb.isStatic()) continue;
if (mb.isBridge()) continue;
if (mb.isConstructor()) continue;
generated by cgit (git 2.46.0) at 2024-11-28 11:33:11 +0000