--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.compiler.lookup;
+
+import org.eclipse.jdt.core.compiler.CharOperation;
+import org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration;
+import org.eclipse.jdt.internal.compiler.ast.ConstructorDeclaration;
+
+public class MethodBinding extends Binding implements BaseTypes, TypeConstants {
+ public int modifiers;
+ public char[] selector;
+ public TypeBinding returnType;
+ public TypeBinding[] parameters;
+ public ReferenceBinding[] thrownExceptions;
+ public ReferenceBinding declaringClass;
+
+ char[] signature;
+
+protected MethodBinding() {
+ // for creating problem or synthetic method
+}
+public MethodBinding(int modifiers, char[] selector, TypeBinding returnType, TypeBinding[] args, ReferenceBinding[] exceptions, ReferenceBinding declaringClass) {
+ this.modifiers = modifiers;
+ this.selector = selector;
+ this.returnType = returnType;
+ this.parameters = (args == null || args.length == 0) ? NoParameters : args;
+ this.thrownExceptions = (exceptions == null || exceptions.length == 0) ? NoExceptions : exceptions;
+ this.declaringClass = declaringClass;
+
+ // propagate the strictfp & deprecated modifiers
+ if (this.declaringClass != null) {
+ if (this.declaringClass.isStrictfp())
+ if (!(isNative() || isAbstract()))
+ this.modifiers |= AccStrictfp;
+ if (this.declaringClass.isViewedAsDeprecated() && !isDeprecated())
+ this.modifiers |= AccDeprecatedImplicitly;
+ }
+}
+public MethodBinding(int modifiers, TypeBinding[] args, ReferenceBinding[] exceptions, ReferenceBinding declaringClass) {
+ this(modifiers, ConstructorDeclaration.ConstantPoolName, VoidBinding, args, exceptions, declaringClass);
+}
+// special API used to change method declaring class for runtime visibility check
+public MethodBinding(MethodBinding initialMethodBinding, ReferenceBinding declaringClass) {
+ this.modifiers = initialMethodBinding.modifiers;
+ this.selector = initialMethodBinding.selector;
+ this.returnType = initialMethodBinding.returnType;
+ this.parameters = initialMethodBinding.parameters;
+ this.thrownExceptions = initialMethodBinding.thrownExceptions;
+ this.declaringClass = declaringClass;
+}
+/* Answer true if the argument types & the receiver's parameters are equal
+*/
+
+public final boolean areParametersEqual(MethodBinding method) {
+ TypeBinding[] args = method.parameters;
+ if (parameters == args)
+ return true;
+
+ int length = parameters.length;
+ if (length != args.length)
+ return false;
+
+ for (int i = 0; i < length; i++)
+ if (parameters[i] != args[i])
+ return false;
+ return true;
+}
+/* API
+* Answer the receiver's binding type from Binding.BindingID.
+*/
+
+public final int bindingType() {
+ return METHOD;
+}
+/* Answer true if the receiver is visible to the type provided by the scope.
+* InvocationSite implements isSuperAccess() to provide additional information
+* if the receiver is protected.
+*
+* NOTE: This method should ONLY be sent if the receiver is a constructor.
+*
+* NOTE: Cannot invoke this method with a compilation unit scope.
+*/
+
+public final boolean canBeSeenBy(InvocationSite invocationSite, Scope scope) {
+ if (isPublic()) return true;
+
+ SourceTypeBinding invocationType = scope.enclosingSourceType();
+ if (invocationType == declaringClass) return true;
+
+ if (isProtected()) {
+ // answer true if the receiver is in the same package as the invocationType
+ if (invocationType.fPackage == declaringClass.fPackage) return true;
+ return invocationSite.isSuperAccess();
+ }
+
+ if (isPrivate()) {
+ // answer true if the invocationType and the declaringClass have a common enclosingType
+ // already know they are not the identical type
+ ReferenceBinding outerInvocationType = invocationType;
+ ReferenceBinding temp = outerInvocationType.enclosingType();
+ while (temp != null) {
+ outerInvocationType = temp;
+ temp = temp.enclosingType();
+ }
+
+ ReferenceBinding outerDeclaringClass = declaringClass;
+ temp = outerDeclaringClass.enclosingType();
+ while (temp != null) {
+ outerDeclaringClass = temp;
+ temp = temp.enclosingType();
+ }
+ return outerInvocationType == outerDeclaringClass;
+ }
+
+ // isDefault()
+ return invocationType.fPackage == declaringClass.fPackage;
+}
+/* Answer true if the receiver is visible to the type provided by the scope.
+* InvocationSite implements isSuperAccess() to provide additional information
+* if the receiver is protected.
+*
+* NOTE: Cannot invoke this method with a compilation unit scope.
+*/
+public final boolean canBeSeenBy(TypeBinding receiverType, InvocationSite invocationSite, Scope scope) {
+ if (isPublic()) return true;
+
+ SourceTypeBinding invocationType = scope.enclosingSourceType();
+ if (invocationType == declaringClass && invocationType == receiverType) return true;
+
+ if (isProtected()) {
+ // answer true if the invocationType is the declaringClass or they are in the same package
+ // OR the invocationType is a subclass of the declaringClass
+ // AND the receiverType is the invocationType or its subclass
+ // OR the method is a static method accessed directly through a type
+ // OR previous assertions are true for one of the enclosing type
+ if (invocationType == declaringClass) return true;
+ if (invocationType.fPackage == declaringClass.fPackage) return true;
+
+ ReferenceBinding currentType = invocationType;
+ int depth = 0;
+ do {
+ if (declaringClass.isSuperclassOf(currentType)) {
+ if (invocationSite.isSuperAccess()){
+ return true;
+ }
+ // receiverType can be an array binding in one case... see if you can change it
+ if (receiverType instanceof ArrayBinding){
+ return false;
+ }
+ if (isStatic()){
+ if (depth > 0) invocationSite.setDepth(depth);
+ return true; // see 1FMEPDL - return invocationSite.isTypeAccess();
+ }
+ if (currentType == receiverType || currentType.isSuperclassOf((ReferenceBinding) receiverType)){
+ if (depth > 0) invocationSite.setDepth(depth);
+ return true;
+ }
+ }
+ depth++;
+ currentType = currentType.enclosingType();
+ } while (currentType != null);
+ return false;
+ }
+
+ if (isPrivate()) {
+ // answer true if the receiverType is the declaringClass
+ // AND the invocationType and the declaringClass have a common enclosingType
+ if (receiverType != declaringClass) return false;
+
+ if (invocationType != declaringClass) {
+ ReferenceBinding outerInvocationType = invocationType;
+ ReferenceBinding temp = outerInvocationType.enclosingType();
+ while (temp != null) {
+ outerInvocationType = temp;
+ temp = temp.enclosingType();
+ }
+
+ ReferenceBinding outerDeclaringClass = declaringClass;
+ temp = outerDeclaringClass.enclosingType();
+ while (temp != null) {
+ outerDeclaringClass = temp;
+ temp = temp.enclosingType();
+ }
+ if (outerInvocationType != outerDeclaringClass) return false;
+ }
+ return true;
+ }
+
+ // isDefault()
+ if (invocationType.fPackage != declaringClass.fPackage) return false;
+
+ // receiverType can be an array binding in one case... see if you can change it
+ if (receiverType instanceof ArrayBinding)
+ return false;
+ ReferenceBinding type = (ReferenceBinding) receiverType;
+ PackageBinding declaringPackage = declaringClass.fPackage;
+ do {
+ if (declaringClass == type) return true;
+ if (declaringPackage != type.fPackage) return false;
+ } while ((type = type.superclass()) != null);
+ return false;
+}
+/*
+ * Answer the declaring class to use in the constant pool
+ * may not be a reference binding (see subtypes)
+ */
+public TypeBinding constantPoolDeclaringClass() {
+ return this.declaringClass;
+}
+/* Answer the receiver's constant pool name.
+*
+* <init> for constructors
+* <clinit> for clinit methods
+* or the source name of the method
+*/
+public final char[] constantPoolName() {
+ return selector;
+}
+public final int getAccessFlags() {
+ return modifiers & AccJustFlag;
+}
+
+/* Answer true if the receiver is an abstract method
+*/
+public final boolean isAbstract() {
+ return (modifiers & AccAbstract) != 0;
+}
+
+/* Answer true if the receiver is a bridge method
+*/
+public final boolean isBridge() {
+ return (modifiers & AccBridge) != 0;
+}
+
+/* Answer true if the receiver is a constructor
+*/
+public final boolean isConstructor() {
+ return selector == ConstructorDeclaration.ConstantPoolName;
+}
+protected boolean isConstructorRelated() {
+ return isConstructor();
+}
+
+/* Answer true if the receiver has default visibility
+*/
+public final boolean isDefault() {
+ return !isPublic() && !isProtected() && !isPrivate();
+}
+
+/* Answer true if the receiver is a system generated default abstract method
+*/
+public final boolean isDefaultAbstract() {
+ return (modifiers & AccDefaultAbstract) != 0;
+}
+
+/* Answer true if the receiver is a deprecated method
+*/
+public final boolean isDeprecated() {
+ return (modifiers & AccDeprecated) != 0;
+}
+
+/* Answer true if the receiver is final and cannot be overridden
+*/
+public final boolean isFinal() {
+ return (modifiers & AccFinal) != 0;
+}
+
+/* Answer true if the receiver is implementing another method
+ * in other words, it is overriding and concrete, and overriden method is abstract
+ * Only set for source methods
+*/
+public final boolean isImplementing() {
+ return (modifiers & AccImplementing) != 0;
+}
+
+/* Answer true if the receiver is a native method
+*/
+public final boolean isNative() {
+ return (modifiers & AccNative) != 0;
+}
+
+/* Answer true if the receiver is overriding another method
+ * Only set for source methods
+*/
+public final boolean isOverriding() {
+ return (modifiers & AccOverriding) != 0;
+}
+/*
+ * Answer true if the receiver is a "public static void main(String[])" method
+ */
+public final boolean isMain() {
+ if (this.selector.length == 4 && CharOperation.equals(this.selector, MAIN)
+ && ((this.modifiers & (AccPublic | AccStatic)) != 0)
+ && VoidBinding == this.returnType
+ && this.parameters.length == 1) {
+ TypeBinding paramType = this.parameters[0];
+ if (paramType.dimensions() == 1 && paramType.leafComponentType().id == TypeIds.T_JavaLangString) {
+ return true;
+ }
+ }
+ return false;
+}
+/* Answer true if the receiver has private visibility
+*/
+public final boolean isPrivate() {
+ return (modifiers & AccPrivate) != 0;
+}
+
+/* Answer true if the receiver has private visibility and is used locally
+*/
+public final boolean isPrivateUsed() {
+ return (modifiers & AccPrivateUsed) != 0;
+}
+
+/* Answer true if the receiver has protected visibility
+*/
+public final boolean isProtected() {
+ return (modifiers & AccProtected) != 0;
+}
+
+/* Answer true if the receiver has public visibility
+*/
+public final boolean isPublic() {
+ return (modifiers & AccPublic) != 0;
+}
+
+/* Answer true if the receiver got requested to clear the private modifier
+ * during private access emulation.
+ */
+public final boolean isRequiredToClearPrivateModifier() {
+ return (modifiers & AccClearPrivateModifier) != 0;
+}
+
+/* Answer true if the receiver is a static method
+*/
+public final boolean isStatic() {
+ return (modifiers & AccStatic) != 0;
+}
+
+/* Answer true if all float operations must adher to IEEE 754 float/double rules
+*/
+public final boolean isStrictfp() {
+ return (modifiers & AccStrictfp) != 0;
+}
+
+/* Answer true if the receiver is a synchronized method
+*/
+public final boolean isSynchronized() {
+ return (modifiers & AccSynchronized) != 0;
+}
+
+/* Answer true if the receiver has public visibility
+*/
+public final boolean isSynthetic() {
+ return (modifiers & AccSynthetic) != 0;
+}
+
+/* Answer true if the receiver is a vararg method
+*/
+public final boolean isVararg() {
+ return (modifiers & AccVarargs) != 0;
+}
+
+/* Answer true if the receiver's declaring type is deprecated (or any of its enclosing types)
+*/
+public final boolean isViewedAsDeprecated() {
+ return (modifiers & AccDeprecated) != 0 ||
+ (modifiers & AccDeprecatedImplicitly) != 0;
+}
+
+public char[] readableName() /* foo(int, Thread) */ {
+ StringBuffer buffer = new StringBuffer(parameters.length + 1 * 20);
+ if (isConstructor())
+ buffer.append(declaringClass.sourceName());
+ else
+ buffer.append(selector);
+ buffer.append('(');
+ if (parameters != NoParameters) {
+ for (int i = 0, length = parameters.length; i < length; i++) {
+ if (i > 0)
+ buffer.append(", "); //$NON-NLS-1$
+ buffer.append(parameters[i].sourceName());
+ }
+ }
+ buffer.append(')');
+ return buffer.toString().toCharArray();
+}
+
+/**
+ * @see org.eclipse.jdt.internal.compiler.lookup.Binding#shortReadableName()
+ */
+public char[] shortReadableName() {
+ StringBuffer buffer = new StringBuffer(parameters.length + 1 * 20);
+ if (isConstructor())
+ buffer.append(declaringClass.shortReadableName());
+ else
+ buffer.append(selector);
+ buffer.append('(');
+ if (parameters != NoParameters) {
+ for (int i = 0, length = parameters.length; i < length; i++) {
+ if (i > 0)
+ buffer.append(", "); //$NON-NLS-1$
+ buffer.append(parameters[i].shortReadableName());
+ }
+ }
+ buffer.append(')');
+ return buffer.toString().toCharArray();
+}
+
+protected final void setSelector(char[] selector) {
+ this.selector = selector;
+ this.signature = null;
+}
+
+/* Answer the receiver's signature.
+*
+* NOTE: This method should only be used during/after code gen.
+* The signature is cached so if the signature of the return type or any parameter
+* type changes, the cached state is invalid.
+*/
+public final char[] signature() /* (ILjava/lang/Thread;)Ljava/lang/Object; */ {
+ if (signature != null)
+ return signature;
+
+ StringBuffer buffer = new StringBuffer(parameters.length + 1 * 20);
+ buffer.append('(');
+
+ TypeBinding[] targetParameters = this.parameters;
+ boolean considerSynthetics = isConstructorRelated() && declaringClass.isNestedType();
+ if (considerSynthetics) {
+
+ // take into account the synthetic argument type signatures as well
+ ReferenceBinding[] syntheticArgumentTypes = declaringClass.syntheticEnclosingInstanceTypes();
+ int count = syntheticArgumentTypes == null ? 0 : syntheticArgumentTypes.length;
+ for (int i = 0; i < count; i++) {
+ buffer.append(syntheticArgumentTypes[i].signature());
+ }
+
+ if (this instanceof SyntheticAccessMethodBinding) {
+ targetParameters = ((SyntheticAccessMethodBinding)this).targetMethod.parameters;
+ }
+ }
+
+ if (targetParameters != NoParameters) {
+ for (int i = 0; i < targetParameters.length; i++) {
+ buffer.append(targetParameters[i].signature());
+ }
+ }
+ if (considerSynthetics) {
+ SyntheticArgumentBinding[] syntheticOuterArguments = declaringClass.syntheticOuterLocalVariables();
+ int count = syntheticOuterArguments == null ? 0 : syntheticOuterArguments.length;
+ for (int i = 0; i < count; i++) {
+ buffer.append(syntheticOuterArguments[i].type.signature());
+ }
+ // move the extra padding arguments of the synthetic constructor invocation to the end
+ for (int i = targetParameters.length, extraLength = parameters.length; i < extraLength; i++) {
+ buffer.append(parameters[i].signature());
+ }
+ }
+ buffer.append(')');
+ buffer.append(returnType.signature());
+ return signature = buffer.toString().toCharArray();
+}
+public final int sourceEnd() {
+ AbstractMethodDeclaration method = sourceMethod();
+ if (method == null)
+ return 0;
+ return method.sourceEnd;
+}
+AbstractMethodDeclaration sourceMethod() {
+ SourceTypeBinding sourceType;
+ try {
+ sourceType = (SourceTypeBinding) declaringClass;
+ } catch (ClassCastException e) {
+ return null;
+ }
+
+ AbstractMethodDeclaration[] methods = sourceType.scope.referenceContext.methods;
+ for (int i = methods.length; --i >= 0;)
+ if (this == methods[i].binding)
+ return methods[i];
+ return null;
+}
+public final int sourceStart() {
+ AbstractMethodDeclaration method = sourceMethod();
+ if (method == null)
+ return 0;
+ return method.sourceStart;
+}
+/* During private access emulation, the binding can be requested to loose its
+ * private visibility when the class file is dumped.
+ */
+
+public final void tagForClearingPrivateModifier() {
+ modifiers |= AccClearPrivateModifier;
+}
+public String toString() {
+ String s = (returnType != null) ? returnType.debugName() : "NULL TYPE"; //$NON-NLS-1$
+ s += " "; //$NON-NLS-1$
+ s += (selector != null) ? new String(selector) : "UNNAMED METHOD"; //$NON-NLS-1$
+
+ s += "("; //$NON-NLS-1$
+ if (parameters != null) {
+ if (parameters != NoParameters) {
+ for (int i = 0, length = parameters.length; i < length; i++) {
+ if (i > 0)
+ s += ", "; //$NON-NLS-1$
+ s += (parameters[i] != null) ? parameters[i].debugName() : "NULL TYPE"; //$NON-NLS-1$
+ }
+ }
+ } else {
+ s += "NULL PARAMETERS"; //$NON-NLS-1$
+ }
+ s += ") "; //$NON-NLS-1$
+
+ if (thrownExceptions != null) {
+ if (thrownExceptions != NoExceptions) {
+ s += "throws "; //$NON-NLS-1$
+ for (int i = 0, length = thrownExceptions.length; i < length; i++) {
+ if (i > 0)
+ s += ", "; //$NON-NLS-1$
+ s += (thrownExceptions[i] != null) ? thrownExceptions[i].debugName() : "NULL TYPE"; //$NON-NLS-1$
+ }
+ }
+ } else {
+ s += "NULL THROWN EXCEPTIONS"; //$NON-NLS-1$
+ }
+ return s;
+}
+}
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