--- /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.ConstructorDeclaration;
+import org.eclipse.jdt.internal.compiler.env.IBinaryField;
+import org.eclipse.jdt.internal.compiler.env.IBinaryMethod;
+import org.eclipse.jdt.internal.compiler.env.IBinaryNestedType;
+import org.eclipse.jdt.internal.compiler.env.IBinaryType;
+import org.eclipse.jdt.internal.compiler.problem.AbortCompilation;
+
+/*
+Not all fields defined by this type are initialized when it is created.
+Some are initialized only when needed.
+
+Accessors have been provided for some public fields so all TypeBindings have the same API...
+but access public fields directly whenever possible.
+Non-public fields have accessors which should be used everywhere you expect the field to be initialized.
+
+null is NOT a valid value for a non-public field... it just means the field is not initialized.
+*/
+
+public final class BinaryTypeBinding extends ReferenceBinding {
+ // all of these fields are ONLY guaranteed to be initialized if accessed using their public accessor method
+ private ReferenceBinding superclass;
+ private ReferenceBinding enclosingType;
+ private ReferenceBinding[] superInterfaces;
+ private FieldBinding[] fields;
+ private MethodBinding[] methods;
+ private ReferenceBinding[] memberTypes;
+
+ // For the link with the principle structure
+ private LookupEnvironment environment;
+public BinaryTypeBinding(PackageBinding packageBinding, IBinaryType binaryType, LookupEnvironment environment) {
+ this.compoundName = CharOperation.splitOn('/', binaryType.getName());
+ computeId();
+
+ this.tagBits |= IsBinaryBinding;
+ this.environment = environment;
+ this.fPackage = packageBinding;
+ this.fileName = binaryType.getFileName();
+
+ // source name must be one name without "$".
+ char[] possibleSourceName = this.compoundName[this.compoundName.length - 1];
+ int start = CharOperation.lastIndexOf('$', possibleSourceName) + 1;
+ if (start == 0) {
+ this.sourceName = possibleSourceName;
+ } else {
+ this.sourceName = new char[possibleSourceName.length - start];
+ System.arraycopy(possibleSourceName, start, this.sourceName, 0, this.sourceName.length);
+ }
+
+ this.modifiers = binaryType.getModifiers();
+ if (binaryType.isInterface())
+ this.modifiers |= AccInterface;
+
+ if (binaryType.isAnonymous()) {
+ this.tagBits |= AnonymousTypeMask;
+ } else if (binaryType.isLocal()) {
+ this.tagBits |= LocalTypeMask;
+ } else if (binaryType.isMember()) {
+ this.tagBits |= MemberTypeMask;
+ }
+}
+
+public FieldBinding[] availableFields() {
+ FieldBinding[] availableFields = new FieldBinding[fields.length];
+ int count = 0;
+
+ for (int i = 0; i < fields.length;i++) {
+ try {
+ availableFields[count] = resolveTypeFor(fields[i]);
+ count++;
+ } catch (AbortCompilation a){
+ // silent abort
+ }
+ }
+
+ System.arraycopy(availableFields, 0, availableFields = new FieldBinding[count], 0, count);
+ return availableFields;
+}
+
+public MethodBinding[] availableMethods() {
+ if ((modifiers & AccUnresolved) == 0)
+ return methods;
+
+ MethodBinding[] availableMethods = new MethodBinding[methods.length];
+ int count = 0;
+
+ for (int i = 0; i < methods.length;i++) {
+ try {
+ availableMethods[count] = resolveTypesFor(methods[i]);
+ count++;
+ } catch (AbortCompilation a){
+ // silent abort
+ }
+ }
+ System.arraycopy(availableMethods, 0, availableMethods = new MethodBinding[count], 0, count);
+ return availableMethods;
+}
+
+void cachePartsFrom(IBinaryType binaryType, boolean needFieldsAndMethods) {
+
+ // default initialization for super-interfaces early, in case some aborting compilation error occurs,
+ // and still want to use binaries passed that point (e.g. type hierarchy resolver, see bug 63748).
+ this.superInterfaces = NoSuperInterfaces;
+
+ char[] superclassName = binaryType.getSuperclassName();
+ if (superclassName != null)
+ // attempt to find the superclass if it exists in the cache (otherwise - resolve it when requested)
+ this.superclass = environment.getTypeFromConstantPoolName(superclassName, 0, -1);
+
+ char[] enclosingTypeName = binaryType.getEnclosingTypeName();
+ if (enclosingTypeName != null) {
+ // attempt to find the enclosing type if it exists in the cache (otherwise - resolve it when requested)
+ this.enclosingType = environment.getTypeFromConstantPoolName(enclosingTypeName, 0, -1);
+ this.tagBits |= MemberTypeMask; // must be a member type not a top-level or local type
+ if (this.enclosingType().isStrictfp())
+ this.modifiers |= AccStrictfp;
+ if (this.enclosingType().isDeprecated())
+ this.modifiers |= AccDeprecatedImplicitly;
+ }
+
+ this.memberTypes = NoMemberTypes;
+ IBinaryNestedType[] memberTypeStructures = binaryType.getMemberTypes();
+ if (memberTypeStructures != null) {
+ int size = memberTypeStructures.length;
+ if (size > 0) {
+ this.memberTypes = new ReferenceBinding[size];
+ for (int i = 0; i < size; i++)
+ // attempt to find each member type if it exists in the cache (otherwise - resolve it when requested)
+ this.memberTypes[i] = environment.getTypeFromConstantPoolName(memberTypeStructures[i].getName(), 0, -1);
+ }
+ }
+
+ char[][] interfaceNames = binaryType.getInterfaceNames();
+ if (interfaceNames != null) {
+ int size = interfaceNames.length;
+ if (size > 0) {
+ this.superInterfaces = new ReferenceBinding[size];
+ for (int i = 0; i < size; i++)
+ // attempt to find each superinterface if it exists in the cache (otherwise - resolve it when requested)
+ this.superInterfaces[i] = environment.getTypeFromConstantPoolName(interfaceNames[i], 0, -1);
+ }
+ }
+ if (needFieldsAndMethods) {
+ createFields(binaryType.getFields());
+ createMethods(binaryType.getMethods());
+ } else { // protect against incorrect use of the needFieldsAndMethods flag, see 48459
+ this.fields = NoFields;
+ this.methods = NoMethods;
+ }
+}
+private void createFields(IBinaryField[] iFields) {
+ this.fields = NoFields;
+ if (iFields != null) {
+ int size = iFields.length;
+ if (size > 0) {
+ this.fields = new FieldBinding[size];
+ for (int i = 0; i < size; i++) {
+ IBinaryField field = iFields[i];
+ this.fields[i] =
+ new FieldBinding(
+ field.getName(),
+ environment.getTypeFromSignature(field.getTypeName(), 0, -1),
+ field.getModifiers() | AccUnresolved,
+ this,
+ field.getConstant());
+ }
+ }
+ }
+}
+private MethodBinding createMethod(IBinaryMethod method) {
+ int methodModifiers = method.getModifiers() | AccUnresolved;
+
+ ReferenceBinding[] exceptions = NoExceptions;
+ char[][] exceptionTypes = method.getExceptionTypeNames();
+ if (exceptionTypes != null) {
+ int size = exceptionTypes.length;
+ if (size > 0) {
+ exceptions = new ReferenceBinding[size];
+ for (int i = 0; i < size; i++)
+ exceptions[i] = environment.getTypeFromConstantPoolName(exceptionTypes[i], 0, -1);
+ }
+ }
+
+ TypeBinding[] parameters = NoParameters;
+ char[] methodSignature = method.getMethodDescriptor(); // of the form (I[Ljava/jang/String;)V
+ int numOfParams = 0;
+ char nextChar;
+ int index = 0; // first character is always '(' so skip it
+ while ((nextChar = methodSignature[++index]) != ')') {
+ if (nextChar != '[') {
+ numOfParams++;
+ if (nextChar == 'L')
+ while ((nextChar = methodSignature[++index]) != ';'){/*empty*/}
+ }
+ }
+
+ // Ignore synthetic argument for member types.
+ int startIndex = (method.isConstructor() && isMemberType() && !isStatic()) ? 1 : 0;
+ int size = numOfParams - startIndex;
+ if (size > 0) {
+ parameters = new TypeBinding[size];
+ index = 1;
+ int end = 0; // first character is always '(' so skip it
+ for (int i = 0; i < numOfParams; i++) {
+ while ((nextChar = methodSignature[++end]) == '['){/*empty*/}
+ if (nextChar == 'L')
+ while ((nextChar = methodSignature[++end]) != ';'){/*empty*/}
+
+ if (i >= startIndex) // skip the synthetic arg if necessary
+ parameters[i - startIndex] = environment.getTypeFromSignature(methodSignature, index, end);
+ index = end + 1;
+ }
+ }
+
+ MethodBinding binding = null;
+ if (method.isConstructor())
+ binding = new MethodBinding(methodModifiers, parameters, exceptions, this);
+ else
+ binding = new MethodBinding(
+ methodModifiers,
+ method.getSelector(),
+ environment.getTypeFromSignature(methodSignature, index + 1, -1), // index is currently pointing at the ')'
+ parameters,
+ exceptions,
+ this);
+ return binding;
+}
+/**
+ * Create method bindings for binary type, filtering out <clinit> and synthetics
+ */
+private void createMethods(IBinaryMethod[] iMethods) {
+ int total = 0, initialTotal = 0, iClinit = -1;
+ int[] toSkip = null;
+ if (iMethods != null) {
+ total = initialTotal = iMethods.length;
+ for (int i = total; --i >= 0;) {
+ IBinaryMethod method = iMethods[i];
+ if ((method.getModifiers() & AccSynthetic) != 0) {
+ // discard synthetics methods
+ if (toSkip == null) toSkip = new int[iMethods.length];
+ toSkip[i] = -1;
+ total--;
+ } else if (iClinit == -1) {
+ char[] methodName = method.getSelector();
+ if (methodName.length == 8 && methodName[0] == '<') {
+ // discard <clinit>
+ iClinit = i;
+ total--;
+ }
+ }
+ }
+ }
+ if (total == 0) {
+ this.methods = NoMethods;
+ return;
+ }
+
+ this.methods = new MethodBinding[total];
+ if (total == initialTotal) {
+ for (int i = 0; i < initialTotal; i++)
+ this.methods[i] = createMethod(iMethods[i]);
+ } else {
+ for (int i = 0, index = 0; i < initialTotal; i++)
+ if (iClinit != i && (toSkip == null || toSkip[i] != -1))
+ this.methods[index++] = createMethod(iMethods[i]);
+ }
+ modifiers |= AccUnresolved; // until methods() is sent
+}
+/* Answer the receiver's enclosing type... null if the receiver is a top level type.
+*
+* NOTE: enclosingType of a binary type is resolved when needed
+*/
+
+public ReferenceBinding enclosingType() {
+ if (enclosingType == null)
+ return null;
+ if (enclosingType instanceof UnresolvedReferenceBinding)
+ enclosingType = ((UnresolvedReferenceBinding) enclosingType).resolve(environment);
+ return enclosingType;
+}
+// NOTE: the type of each field of a binary type is resolved when needed
+
+public FieldBinding[] fields() {
+ for (int i = fields.length; --i >= 0;)
+ resolveTypeFor(fields[i]);
+ return fields;
+}
+// NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed
+
+public MethodBinding getExactConstructor(TypeBinding[] argumentTypes) {
+ int argCount = argumentTypes.length;
+ nextMethod : for (int m = methods.length; --m >= 0;) {
+ MethodBinding method = methods[m];
+ if (method.selector == ConstructorDeclaration.ConstantPoolName && method.parameters.length == argCount) {
+ resolveTypesFor(method);
+ TypeBinding[] toMatch = method.parameters;
+ for (int p = 0; p < argCount; p++)
+ if (toMatch[p] != argumentTypes[p])
+ continue nextMethod;
+ return method;
+ }
+ }
+ return null;
+}
+// NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed
+// searches up the hierarchy as long as no potential (but not exact) match was found.
+
+public MethodBinding getExactMethod(char[] selector, TypeBinding[] argumentTypes) {
+ int argCount = argumentTypes.length;
+ int selectorLength = selector.length;
+ boolean foundNothing = true;
+ nextMethod : for (int m = methods.length; --m >= 0;) {
+ MethodBinding method = methods[m];
+ if (method.selector.length == selectorLength && CharOperation.equals(method.selector, selector)) {
+ foundNothing = false; // inner type lookups must know that a method with this name exists
+ if (method.parameters.length == argCount) {
+ resolveTypesFor(method);
+ TypeBinding[] toMatch = method.parameters;
+ for (int p = 0; p < argCount; p++)
+ if (toMatch[p] != argumentTypes[p])
+ continue nextMethod;
+ return method;
+ }
+ }
+ }
+
+ if (foundNothing) {
+ if (isInterface()) {
+ if (superInterfaces.length == 1)
+ return superInterfaces[0].getExactMethod(selector, argumentTypes);
+ } else if (superclass != null) {
+ return superclass.getExactMethod(selector, argumentTypes);
+ }
+ }
+ return null;
+}
+// NOTE: the type of a field of a binary type is resolved when needed
+
+public FieldBinding getField(char[] fieldName, boolean needResolve) {
+ int fieldLength = fieldName.length;
+ for (int f = fields.length; --f >= 0;) {
+ char[] name = fields[f].name;
+ if (name.length == fieldLength && CharOperation.equals(name, fieldName))
+ return needResolve ? resolveTypeFor(fields[f]) : fields[f];
+ }
+ return null;
+}
+/**
+ * Rewrite of default getMemberType to avoid resolving eagerly all member types when one is requested
+ */
+public ReferenceBinding getMemberType(char[] typeName) {
+ for (int i = this.memberTypes.length; --i >= 0;) {
+ ReferenceBinding memberType = this.memberTypes[i];
+ if (memberType instanceof UnresolvedReferenceBinding) {
+ char[] name = memberType.sourceName; // source name is qualified with enclosing type name
+ int prefixLength = this.compoundName[this.compoundName.length - 1].length + 1; // enclosing$
+ if (name.length == (prefixLength + typeName.length)) // enclosing $ typeName
+ if (CharOperation.fragmentEquals(typeName, name, prefixLength, true)) // only check trailing portion
+ return this.memberTypes[i] = ((UnresolvedReferenceBinding) memberType).resolve(environment);
+ } else if (CharOperation.equals(typeName, memberType.sourceName)) {
+ return memberType;
+ }
+ }
+ return null;
+}
+// NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed
+
+public MethodBinding[] getMethods(char[] selector) {
+ int count = 0;
+ int lastIndex = -1;
+ int selectorLength = selector.length;
+ for (int m = 0, length = methods.length; m < length; m++) {
+ MethodBinding method = methods[m];
+ if (method.selector.length == selectorLength && CharOperation.equals(method.selector, selector)) {
+ resolveTypesFor(method);
+ count++;
+ lastIndex = m;
+ }
+ }
+ if (count == 1)
+ return new MethodBinding[] {methods[lastIndex]};
+ if (count > 0) {
+ MethodBinding[] result = new MethodBinding[count];
+ count = 0;
+ for (int m = 0; m <= lastIndex; m++) {
+ MethodBinding method = methods[m];
+ if (method.selector.length == selectorLength && CharOperation.equals(method.selector, selector))
+ result[count++] = method;
+ }
+ return result;
+ }
+ return NoMethods;
+}
+public boolean hasMemberTypes() {
+ return this.memberTypes.length > 0;
+}
+// NOTE: member types of binary types are resolved when needed
+
+public ReferenceBinding[] memberTypes() {
+ for (int i = memberTypes.length; --i >= 0;)
+ if (memberTypes[i] instanceof UnresolvedReferenceBinding)
+ memberTypes[i] = ((UnresolvedReferenceBinding) memberTypes[i]).resolve(environment);
+ return memberTypes;
+}
+// NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed
+
+public MethodBinding[] methods() {
+ if ((modifiers & AccUnresolved) == 0)
+ return methods;
+
+ for (int i = methods.length; --i >= 0;)
+ resolveTypesFor(methods[i]);
+ modifiers ^= AccUnresolved;
+ return methods;
+}
+TypeBinding resolveType(TypeBinding type) {
+ if (type instanceof UnresolvedReferenceBinding)
+ return ((UnresolvedReferenceBinding) type).resolve(environment);
+ if (type instanceof ArrayBinding) {
+ ArrayBinding array = (ArrayBinding) type;
+ if (array.leafComponentType instanceof UnresolvedReferenceBinding)
+ array.leafComponentType = ((UnresolvedReferenceBinding) array.leafComponentType).resolve(environment);
+ }
+ return type;
+}
+private FieldBinding resolveTypeFor(FieldBinding field) {
+ if ((field.modifiers & AccUnresolved) != 0) {
+ field.type = resolveType(field.type);
+ field.modifiers ^= AccUnresolved;
+ }
+ return field;
+}
+private MethodBinding resolveTypesFor(MethodBinding method) {
+ if ((method.modifiers & AccUnresolved) == 0)
+ return method;
+
+ if (!method.isConstructor())
+ method.returnType = resolveType(method.returnType);
+ for (int i = method.parameters.length; --i >= 0;)
+ method.parameters[i] = resolveType(method.parameters[i]);
+ for (int i = method.thrownExceptions.length; --i >= 0;)
+ if (method.thrownExceptions[i] instanceof UnresolvedReferenceBinding)
+ method.thrownExceptions[i] = ((UnresolvedReferenceBinding) method.thrownExceptions[i]).resolve(environment);
+ method.modifiers ^= AccUnresolved;
+ return method;
+}
+/* Answer the receiver's superclass... null if the receiver is Object or an interface.
+*
+* NOTE: superclass of a binary type is resolved when needed
+*/
+
+public ReferenceBinding superclass() {
+ if (superclass == null)
+ return null;
+ if (superclass instanceof UnresolvedReferenceBinding)
+ superclass = ((UnresolvedReferenceBinding) superclass).resolve(environment);
+ return superclass;
+}
+// NOTE: superInterfaces of binary types are resolved when needed
+
+public ReferenceBinding[] superInterfaces() {
+ for (int i = superInterfaces.length; --i >= 0;)
+ if (superInterfaces[i] instanceof UnresolvedReferenceBinding)
+ superInterfaces[i] = ((UnresolvedReferenceBinding) superInterfaces[i]).resolve(environment);
+ return superInterfaces;
+}
+MethodBinding[] unResolvedMethods() { // for the MethodVerifier so it doesn't resolve types
+ return methods;
+}
+public String toString() {
+ String s = ""; //$NON-NLS-1$
+
+ if (isDeprecated()) s += "deprecated "; //$NON-NLS-1$
+ if (isPublic()) s += "public "; //$NON-NLS-1$
+ if (isProtected()) s += "protected "; //$NON-NLS-1$
+ if (isPrivate()) s += "private "; //$NON-NLS-1$
+ if (isAbstract() && isClass()) s += "abstract "; //$NON-NLS-1$
+ if (isStatic() && isNestedType()) s += "static "; //$NON-NLS-1$
+ if (isFinal()) s += "final "; //$NON-NLS-1$
+
+ s += isInterface() ? "interface " : "class "; //$NON-NLS-1$ //$NON-NLS-2$
+ s += (compoundName != null) ? CharOperation.toString(compoundName) : "UNNAMED TYPE"; //$NON-NLS-1$
+
+ s += "\n\textends "; //$NON-NLS-1$
+ s += (superclass != null) ? superclass.debugName() : "NULL TYPE"; //$NON-NLS-1$
+
+ if (superInterfaces != null) {
+ if (superInterfaces != NoSuperInterfaces) {
+ s += "\n\timplements : "; //$NON-NLS-1$
+ for (int i = 0, length = superInterfaces.length; i < length; i++) {
+ if (i > 0)
+ s += ", "; //$NON-NLS-1$
+ s += (superInterfaces[i] != null) ? superInterfaces[i].debugName() : "NULL TYPE"; //$NON-NLS-1$
+ }
+ }
+ } else {
+ s += "NULL SUPERINTERFACES"; //$NON-NLS-1$
+ }
+
+ if (enclosingType != null) {
+ s += "\n\tenclosing type : "; //$NON-NLS-1$
+ s += enclosingType.debugName();
+ }
+
+ if (fields != null) {
+ if (fields != NoFields) {
+ s += "\n/* fields */"; //$NON-NLS-1$
+ for (int i = 0, length = fields.length; i < length; i++)
+ s += (fields[i] != null) ? "\n" + fields[i].toString() : "\nNULL FIELD"; //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ } else {
+ s += "NULL FIELDS"; //$NON-NLS-1$
+ }
+
+ if (methods != null) {
+ if (methods != NoMethods) {
+ s += "\n/* methods */"; //$NON-NLS-1$
+ for (int i = 0, length = methods.length; i < length; i++)
+ s += (methods[i] != null) ? "\n" + methods[i].toString() : "\nNULL METHOD"; //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ } else {
+ s += "NULL METHODS"; //$NON-NLS-1$
+ }
+
+ if (memberTypes != null) {
+ if (memberTypes != NoMemberTypes) {
+ s += "\n/* members */"; //$NON-NLS-1$
+ for (int i = 0, length = memberTypes.length; i < length; i++)
+ s += (memberTypes[i] != null) ? "\n" + memberTypes[i].toString() : "\nNULL TYPE"; //$NON-NLS-1$ //$NON-NLS-2$
+ }
+ } else {
+ s += "NULL MEMBER TYPES"; //$NON-NLS-1$
+ }
+
+ s += "\n\n\n"; //$NON-NLS-1$
+ return s;
+}
+}
projects / org.ibex.tool.git / blobdiff