--- /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.ast;
+
+import org.eclipse.jdt.internal.compiler.ASTVisitor;
+import org.eclipse.jdt.internal.compiler.codegen.*;
+import org.eclipse.jdt.internal.compiler.flow.*;
+import org.eclipse.jdt.internal.compiler.lookup.*;
+
+public class AllocationExpression
+ extends Expression
+ implements InvocationSite {
+
+ public TypeReference type;
+ public Expression[] arguments;
+ public MethodBinding binding;
+
+ MethodBinding syntheticAccessor;
+
+ public FlowInfo analyseCode(
+ BlockScope currentScope,
+ FlowContext flowContext,
+ FlowInfo flowInfo) {
+
+ // check captured variables are initialized in current context (26134)
+ checkCapturedLocalInitializationIfNecessary(this.binding.declaringClass, currentScope, flowInfo);
+
+ // process arguments
+ if (arguments != null) {
+ for (int i = 0, count = arguments.length; i < count; i++) {
+ flowInfo =
+ arguments[i]
+ .analyseCode(currentScope, flowContext, flowInfo)
+ .unconditionalInits();
+ }
+ }
+ // record some dependency information for exception types
+ ReferenceBinding[] thrownExceptions;
+ if (((thrownExceptions = this.binding.thrownExceptions).length) != 0) {
+ // check exception handling
+ flowContext.checkExceptionHandlers(
+ thrownExceptions,
+ this,
+ flowInfo,
+ currentScope);
+ }
+ manageEnclosingInstanceAccessIfNecessary(currentScope, flowInfo);
+ manageSyntheticAccessIfNecessary(currentScope, flowInfo);
+
+ return flowInfo;
+ }
+
+ public void checkCapturedLocalInitializationIfNecessary(ReferenceBinding checkedType, BlockScope currentScope, FlowInfo flowInfo) {
+
+ if (checkedType.isLocalType()
+ && !checkedType.isAnonymousType()
+ && !currentScope.isDefinedInType(checkedType)) { // only check external allocations
+ NestedTypeBinding nestedType = (NestedTypeBinding) checkedType;
+ SyntheticArgumentBinding[] syntheticArguments = nestedType.syntheticOuterLocalVariables();
+ if (syntheticArguments != null)
+ for (int i = 0, count = syntheticArguments.length; i < count; i++){
+ SyntheticArgumentBinding syntheticArgument = syntheticArguments[i];
+ LocalVariableBinding targetLocal;
+ if ((targetLocal = syntheticArgument.actualOuterLocalVariable) == null) continue;
+ if (targetLocal.declaration != null && !flowInfo.isDefinitelyAssigned(targetLocal)){
+ currentScope.problemReporter().uninitializedLocalVariable(targetLocal, this);
+ }
+ }
+
+ }
+ }
+
+ public Expression enclosingInstance() {
+ return null;
+ }
+
+ public void generateCode(
+ BlockScope currentScope,
+ CodeStream codeStream,
+ boolean valueRequired) {
+
+ int pc = codeStream.position;
+ ReferenceBinding allocatedType = binding.declaringClass;
+
+ codeStream.new_(allocatedType);
+ if (valueRequired) {
+ codeStream.dup();
+ }
+ // better highlight for allocation: display the type individually
+ codeStream.recordPositionsFrom(pc, type.sourceStart);
+
+ // handling innerclass instance allocation - enclosing instance arguments
+ if (allocatedType.isNestedType()) {
+ codeStream.generateSyntheticEnclosingInstanceValues(
+ currentScope,
+ allocatedType,
+ enclosingInstance(),
+ this);
+ }
+ // generate the arguments for constructor
+ if (arguments != null) {
+ for (int i = 0, count = arguments.length; i < count; i++) {
+ arguments[i].generateCode(currentScope, codeStream, true);
+ }
+ }
+ // handling innerclass instance allocation - outer local arguments
+ if (allocatedType.isNestedType()) {
+ codeStream.generateSyntheticOuterArgumentValues(
+ currentScope,
+ allocatedType,
+ this);
+ }
+ // invoke constructor
+ if (syntheticAccessor == null) {
+ codeStream.invokespecial(binding);
+ } else {
+ // synthetic accessor got some extra arguments appended to its signature, which need values
+ for (int i = 0,
+ max = syntheticAccessor.parameters.length - binding.parameters.length;
+ i < max;
+ i++) {
+ codeStream.aconst_null();
+ }
+ codeStream.invokespecial(syntheticAccessor);
+ }
+ codeStream.recordPositionsFrom(pc, this.sourceStart);
+ }
+
+ public boolean isSuperAccess() {
+
+ return false;
+ }
+
+ public boolean isTypeAccess() {
+
+ return true;
+ }
+
+ /* Inner emulation consists in either recording a dependency
+ * link only, or performing one level of propagation.
+ *
+ * Dependency mechanism is used whenever dealing with source target
+ * types, since by the time we reach them, we might not yet know their
+ * exact need.
+ */
+ public void manageEnclosingInstanceAccessIfNecessary(BlockScope currentScope, FlowInfo flowInfo) {
+
+ if (!flowInfo.isReachable()) return;
+ ReferenceBinding allocatedType;
+
+ // perform some emulation work in case there is some and we are inside a local type only
+ if ((allocatedType = binding.declaringClass).isNestedType()
+ && currentScope.enclosingSourceType().isLocalType()) {
+
+ if (allocatedType.isLocalType()) {
+ ((LocalTypeBinding) allocatedType).addInnerEmulationDependent(currentScope, false);
+ // request cascade of accesses
+ } else {
+ // locally propagate, since we already now the desired shape for sure
+ currentScope.propagateInnerEmulation(allocatedType, false);
+ // request cascade of accesses
+ }
+ }
+ }
+
+ public void manageSyntheticAccessIfNecessary(BlockScope currentScope, FlowInfo flowInfo) {
+
+ if (!flowInfo.isReachable()) return;
+ if (binding.isPrivate()
+ && (currentScope.enclosingSourceType() != binding.declaringClass)) {
+
+ if (currentScope
+ .environment()
+ .options
+ .isPrivateConstructorAccessChangingVisibility) {
+ binding.tagForClearingPrivateModifier();
+ // constructor will not be dumped as private, no emulation required thus
+ } else {
+ syntheticAccessor =
+ ((SourceTypeBinding) binding.declaringClass).addSyntheticMethod(binding, isSuperAccess());
+ currentScope.problemReporter().needToEmulateMethodAccess(binding, this);
+ }
+ }
+ }
+
+ public StringBuffer printExpression(int indent, StringBuffer output) {
+
+ output.append("new "); //$NON-NLS-1$
+ type.printExpression(0, output);
+ output.append('(');
+ if (arguments != null) {
+ for (int i = 0; i < arguments.length; i++) {
+ if (i > 0) output.append(", "); //$NON-NLS-1$
+ arguments[i].printExpression(0, output);
+ }
+ }
+ return output.append(')');
+ }
+
+ public TypeBinding resolveType(BlockScope scope) {
+
+ // Propagate the type checking to the arguments, and check if the constructor is defined.
+ constant = NotAConstant;
+ this.resolvedType = type.resolveType(scope);
+ // will check for null after args are resolved
+
+ // buffering the arguments' types
+ boolean argsContainCast = false;
+ TypeBinding[] argumentTypes = NoParameters;
+ if (arguments != null) {
+ boolean argHasError = false;
+ int length = arguments.length;
+ argumentTypes = new TypeBinding[length];
+ for (int i = 0; i < length; i++) {
+ Expression argument = this.arguments[i];
+ if (argument instanceof CastExpression) {
+ argument.bits |= IgnoreNeedForCastCheckMASK; // will check later on
+ argsContainCast = true;
+ }
+ if ((argumentTypes[i] = argument.resolveType(scope)) == null) {
+ argHasError = true;
+ }
+ }
+ if (argHasError) {
+ return this.resolvedType;
+ }
+ }
+ if (this.resolvedType == null)
+ return null;
+
+ if (!this.resolvedType.canBeInstantiated()) {
+ scope.problemReporter().cannotInstantiate(type, this.resolvedType);
+ return this.resolvedType;
+ }
+ ReferenceBinding allocationType = (ReferenceBinding) this.resolvedType;
+ if (!(binding = scope.getConstructor(allocationType, argumentTypes, this))
+ .isValidBinding()) {
+ if (binding.declaringClass == null)
+ binding.declaringClass = allocationType;
+ scope.problemReporter().invalidConstructor(this, binding);
+ return this.resolvedType;
+ }
+ if (isMethodUseDeprecated(binding, scope))
+ scope.problemReporter().deprecatedMethod(binding, this);
+
+ if (arguments != null) {
+ for (int i = 0; i < arguments.length; i++) {
+ arguments[i].implicitWidening(binding.parameters[i], argumentTypes[i]);
+ }
+ if (argsContainCast) {
+ CastExpression.checkNeedForArgumentCasts(scope, null, allocationType, binding, this.arguments, argumentTypes, this);
+ }
+ }
+ return allocationType;
+ }
+
+ public void setActualReceiverType(ReferenceBinding receiverType) {
+ // ignored
+ }
+
+ public void setDepth(int i) {
+ // ignored
+ }
+
+ public void setFieldIndex(int i) {
+ // ignored
+ }
+
+ public void traverse(ASTVisitor visitor, BlockScope scope) {
+
+ if (visitor.visit(this, scope)) {
+ int argumentsLength;
+ type.traverse(visitor, scope);
+ if (arguments != null) {
+ argumentsLength = arguments.length;
+ for (int i = 0; i < argumentsLength; i++)
+ arguments[i].traverse(visitor, scope);
+ }
+ }
+ visitor.endVisit(this, scope);
+ }
+}
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