+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v0.5
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v05.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- ******************************************************************************/
-package net.sourceforge.phpdt.internal.compiler.lookup;
-
-import net.sourceforge.phpdt.internal.compiler.ast.AbstractMethodDeclaration;
-import net.sourceforge.phpdt.internal.compiler.ast.Argument;
-import net.sourceforge.phpdt.internal.compiler.ast.AstNode;
-import net.sourceforge.phpdt.internal.compiler.ast.ConstructorDeclaration;
-import net.sourceforge.phpdt.internal.compiler.ast.TypeDeclaration;
-import net.sourceforge.phpdt.internal.compiler.codegen.CodeStream;
-import net.sourceforge.phpdt.internal.compiler.impl.CompilerOptions;
-import net.sourceforge.phpdt.internal.compiler.impl.Constant;
-import net.sourceforge.phpdt.internal.compiler.problem.ProblemReporter;
-import net.sourceforge.phpdt.internal.compiler.util.CharOperation;
-
-public class BlockScope extends Scope {
-
- // Local variable management
- public LocalVariableBinding[] locals;
- public int localIndex; // position for next variable
- public int startIndex; // start position in this scope - for ordering scopes vs. variables
- public int offset; // for variable allocation throughout scopes
- public int maxOffset; // for variable allocation throughout scopes
-
- // finally scopes must be shifted behind respective try scope
- public BlockScope[] shiftScopes;
-
- public final static VariableBinding[] EmulationPathToImplicitThis = {};
-
- public Scope[] subscopes = new Scope[1]; // need access from code assist
- public int scopeIndex = 0; // need access from code assist
-
- protected BlockScope(int kind, Scope parent) {
-
- super(kind, parent);
- }
-
- public BlockScope(BlockScope parent) {
-
- this(parent, true);
- }
-
- public BlockScope(BlockScope parent, boolean addToParentScope) {
-
- this(BLOCK_SCOPE, parent);
- locals = new LocalVariableBinding[5];
- if (addToParentScope) parent.addSubscope(this);
- this.startIndex = parent.localIndex;
- }
-
- public BlockScope(BlockScope parent, int variableCount) {
-
- this(BLOCK_SCOPE, parent);
- locals = new LocalVariableBinding[variableCount];
- parent.addSubscope(this);
- this.startIndex = parent.localIndex;
- }
-
- /* Create the class scope & binding for the anonymous type.
- */
- public final void addAnonymousType(
- TypeDeclaration anonymousType,
- ReferenceBinding superBinding) {
-
- ClassScope anonymousClassScope = new ClassScope(this, anonymousType);
- anonymousClassScope.buildAnonymousTypeBinding(
- enclosingSourceType(),
- superBinding);
- }
-
- /* Create the class scope & binding for the local type.
- */
- public final void addLocalType(TypeDeclaration localType) {
-
- // check that the localType does not conflict with an enclosing type
- ReferenceBinding type = enclosingSourceType();
- do {
- if (CharOperation.equals(type.sourceName, localType.name)) {
- problemReporter().hidingEnclosingType(localType);
- return;
- }
- type = type.enclosingType();
- } while (type != null);
-
- // check that the localType does not conflict with another sibling local type
- Scope scope = this;
- do {
- if (((BlockScope) scope).findLocalType(localType.name) != null) {
- problemReporter().duplicateNestedType(localType);
- return;
- }
- } while ((scope = scope.parent) instanceof BlockScope);
-
- ClassScope localTypeScope = new ClassScope(this, localType);
- localTypeScope.buildLocalTypeBinding(enclosingSourceType());
- addSubscope(localTypeScope);
- }
-
- /* Insert a local variable into a given scope, updating its position
- * and checking there are not too many locals or arguments allocated.
- */
- public final void addLocalVariable(LocalVariableBinding binding) {
-
- checkAndSetModifiersForVariable(binding);
-
- // insert local in scope
- if (localIndex == locals.length)
- System.arraycopy(
- locals,
- 0,
- (locals = new LocalVariableBinding[localIndex * 2]),
- 0,
- localIndex);
- locals[localIndex++] = binding;
-
- // update local variable binding
- binding.declaringScope = this;
- binding.id = this.outerMostMethodScope().analysisIndex++;
- // share the outermost method scope analysisIndex
- }
-
- public void addSubscope(Scope childScope) {
- if (scopeIndex == subscopes.length)
- System.arraycopy(
- subscopes,
- 0,
- (subscopes = new Scope[scopeIndex * 2]),
- 0,
- scopeIndex);
- subscopes[scopeIndex++] = childScope;
- }
-
- /* Answer true if the receiver is suitable for assigning final blank fields.
- *
- * i.e. is inside an initializer, a constructor or a clinit
- */
- public final boolean allowBlankFinalFieldAssignment(FieldBinding binding) {
-
- if (enclosingSourceType() != binding.declaringClass)
- return false;
-
- MethodScope methodScope = methodScope();
- if (methodScope.isStatic != binding.isStatic())
- return false;
- return methodScope.isInsideInitializer() // inside initializer
- || ((AbstractMethodDeclaration) methodScope.referenceContext)
- .isInitializationMethod();
- // inside constructor or clinit
- }
- String basicToString(int tab) {
- String newLine = "\n"; //$NON-NLS-1$
- for (int i = tab; --i >= 0;)
- newLine += "\t"; //$NON-NLS-1$
-
- String s = newLine + "--- Block Scope ---"; //$NON-NLS-1$
- newLine += "\t"; //$NON-NLS-1$
- s += newLine + "locals:"; //$NON-NLS-1$
- for (int i = 0; i < localIndex; i++)
- s += newLine + "\t" + locals[i].toString(); //$NON-NLS-1$
- s += newLine + "startIndex = " + startIndex; //$NON-NLS-1$
- return s;
- }
-
- private void checkAndSetModifiersForVariable(LocalVariableBinding varBinding) {
-
- int modifiers = varBinding.modifiers;
- if ((modifiers & AccAlternateModifierProblem) != 0 && varBinding.declaration != null){
- problemReporter().duplicateModifierForVariable(varBinding.declaration, this instanceof MethodScope);
- }
- int realModifiers = modifiers & AccJustFlag;
-
- int unexpectedModifiers = ~AccFinal;
- if ((realModifiers & unexpectedModifiers) != 0 && varBinding.declaration != null){
- problemReporter().illegalModifierForVariable(varBinding.declaration, this instanceof MethodScope);
- }
- varBinding.modifiers = modifiers;
- }
-
- /* Compute variable positions in scopes given an initial position offset
- * ignoring unused local variables.
- *
- * Special treatment to have Try secret return address variables located at non
- * colliding positions. Return addresses are not allocated initially, but gathered
- * and allocated behind all other variables.
- */
- public void computeLocalVariablePositions(
- int initOffset,
- CodeStream codeStream) {
-
- this.offset = initOffset;
- this.maxOffset = initOffset;
-
- // local variable init
- int ilocal = 0, maxLocals = 0, localsLength = locals.length;
- while ((maxLocals < localsLength) && (locals[maxLocals] != null))
- maxLocals++;
- boolean hasMoreVariables = maxLocals > 0;
-
- // scope init
- int iscope = 0, maxScopes = 0, subscopesLength = subscopes.length;
- while ((maxScopes < subscopesLength) && (subscopes[maxScopes] != null))
- maxScopes++;
- boolean hasMoreScopes = maxScopes > 0;
-
- // iterate scopes and variables in parallel
- while (hasMoreVariables || hasMoreScopes) {
- if (hasMoreScopes
- && (!hasMoreVariables || (subscopes[iscope].startIndex() <= ilocal))) {
- // consider subscope first
- if (subscopes[iscope] instanceof BlockScope) {
- BlockScope subscope = (BlockScope) subscopes[iscope];
- int subOffset = subscope.shiftScopes == null ? this.offset : subscope.maxShiftedOffset();
- subscope.computeLocalVariablePositions(subOffset, codeStream);
- if (subscope.maxOffset > this.maxOffset)
- this.maxOffset = subscope.maxOffset;
- }
- hasMoreScopes = ++iscope < maxScopes;
- } else {
- // consider variable first
- LocalVariableBinding local = locals[ilocal];
-
- // check if variable is actually used, and may force it to be preserved
- boolean generatesLocal =
- (local.used && (local.constant == Constant.NotAConstant)) || local.isArgument;
- if (!local.used
- && (local.declaration != null) // unused (and non secret) local
- && ((local.declaration.bits & AstNode.IsLocalDeclarationReachableMASK) != 0)) { // declaration is reachable
- if (local.isArgument) // method argument
- this.problemReporter().unusedArgument(local.declaration);
- else if (!(local.declaration instanceof Argument)) // do not report unused catch arguments
- this.problemReporter().unusedLocalVariable(local.declaration);
- }
- if (!generatesLocal) {
- if (local.declaration != null
- && environment().options.preserveAllLocalVariables) {
- generatesLocal = true; // force it to be preserved in the generated code
- local.used = true;
- }
- }
- if (generatesLocal) {
-
- if (local.declaration != null) {
- codeStream.record(local);
- // record user local variables for attribute generation
- }
- // allocate variable position
- local.resolvedPosition = this.offset;
-
- // check for too many arguments/local variables
- if (local.isArgument) {
- if (this.offset > 0xFF) { // no more than 255 words of arguments
- this.problemReporter().noMoreAvailableSpaceForArgument(local, local.declaration);
- }
- } else {
- if (this.offset > 0xFFFF) { // no more than 65535 words of locals
- this.problemReporter().noMoreAvailableSpaceForLocal(
- local, local.declaration == null ? (AstNode)this.methodScope().referenceContext : local.declaration);
- }
- }
-
- // increment offset
- if ((local.type == LongBinding) || (local.type == DoubleBinding)) {
- this.offset += 2;
- } else {
- this.offset++;
- }
- } else {
- local.resolvedPosition = -1; // not generated
- }
- hasMoreVariables = ++ilocal < maxLocals;
- }
- }
- if (this.offset > this.maxOffset)
- this.maxOffset = this.offset;
- }
-
- /* Answer true if the variable name already exists within the receiver's scope.
- */
- public final LocalVariableBinding duplicateName(char[] name) {
- for (int i = 0; i < localIndex; i++)
- if (CharOperation.equals(name, locals[i].name))
- return locals[i];
-
- if (this instanceof MethodScope)
- return null;
- else
- return ((BlockScope) parent).duplicateName(name);
- }
-
- /*
- * Record the suitable binding denoting a synthetic field or constructor argument,
- * mapping to the actual outer local variable in the scope context.
- * Note that this may not need any effect, in case the outer local variable does not
- * need to be emulated and can directly be used as is (using its back pointer to its
- * declaring scope).
- */
- public void emulateOuterAccess(LocalVariableBinding outerLocalVariable) {
-
- MethodScope currentMethodScope;
- if ((currentMethodScope = this.methodScope())
- != outerLocalVariable.declaringScope.methodScope()) {
- NestedTypeBinding currentType = (NestedTypeBinding) this.enclosingSourceType();
-
- //do nothing for member types, pre emulation was performed already
- if (!currentType.isLocalType()) {
- return;
- }
- // must also add a synthetic field if we're not inside a constructor
- if (!currentMethodScope.isInsideInitializerOrConstructor()) {
- currentType.addSyntheticArgumentAndField(outerLocalVariable);
- } else {
- currentType.addSyntheticArgument(outerLocalVariable);
- }
- }
- }
-
- /*
- * Record the suitable binding denoting a synthetic field or constructor argument,
- * mapping to a given actual enclosing instance type in the scope context.
- * Skip it if the enclosingType is actually the current scope's enclosing type.
- */
-
- public void emulateOuterAccess(
- ReferenceBinding targetEnclosingType,
- boolean useDirectReference) {
-
- ReferenceBinding currentType = enclosingSourceType();
- if (currentType.isNestedType()
- && currentType != targetEnclosingType){
- /*&& !targetEnclosingType.isSuperclassOf(currentType)*/
-
- if (useDirectReference) {
- // the target enclosing type is not in scope, we directly refer it
- // must also add a synthetic field if we're not inside a constructor
- NestedTypeBinding currentNestedType = (NestedTypeBinding) currentType;
- if (methodScope().isInsideInitializerOrConstructor())
- currentNestedType.addSyntheticArgument(targetEnclosingType);
- else
- currentNestedType.addSyntheticArgumentAndField(targetEnclosingType);
-
- } else { // indirect reference sequence
- int depth = 0;
-
- // saturate all the way up until reaching compatible enclosing type
- while (currentType.isLocalType()){
- NestedTypeBinding currentNestedType = (NestedTypeBinding) currentType;
- currentType = currentNestedType.enclosingType;
-
- if (depth == 0){
- if (methodScope().isInsideInitializerOrConstructor()) {
- // must also add a synthetic field if we're not inside a constructor
- currentNestedType.addSyntheticArgument(currentType);
- } else {
- currentNestedType.addSyntheticArgumentAndField(currentType);
- }
- } else if (currentNestedType == targetEnclosingType
- || targetEnclosingType.isSuperclassOf(currentNestedType)) {
- break;
- } else {
- currentNestedType.addSyntheticArgumentAndField(currentType);
- }
- depth++;
- }
- }
- }
- }
-
- /* Note that it must never produce a direct access to the targetEnclosingType,
- * but instead a field sequence (this$2.this$1.this$0) so as to handle such a test case:
- *
- * class XX {
- * void foo() {
- * class A {
- * class B {
- * class C {
- * boolean foo() {
- * return (Object) A.this == (Object) B.this;
- * }
- * }
- * }
- * }
- * new A().new B().new C();
- * }
- * }
- * where we only want to deal with ONE enclosing instance for C (could not figure out an A for C)
- */
- public final ReferenceBinding findLocalType(char[] name) {
-
- for (int i = 0, length = scopeIndex; i < length; i++) {
- if (subscopes[i] instanceof ClassScope) {
- SourceTypeBinding sourceType =
- ((ClassScope) subscopes[i]).referenceContext.binding;
- if (CharOperation.equals(sourceType.sourceName(), name))
- return sourceType;
- }
- }
- return null;
- }
-
- public LocalVariableBinding findVariable(char[] variable) {
-
- int variableLength = variable.length;
- for (int i = 0, length = locals.length; i < length; i++) {
- LocalVariableBinding local = locals[i];
- if (local == null)
- return null;
- if (local.name.length == variableLength
- && CharOperation.prefixEquals(local.name, variable))
- return local;
- }
- return null;
- }
- /* API
- * flag is a mask of the following values VARIABLE (= FIELD or LOCAL), TYPE.
- * Only bindings corresponding to the mask will be answered.
- *
- * if the VARIABLE mask is set then
- * If the first name provided is a field (or local) then the field (or local) is answered
- * Otherwise, package names and type names are consumed until a field is found.
- * In this case, the field is answered.
- *
- * if the TYPE mask is set,
- * package names and type names are consumed until the end of the input.
- * Only if all of the input is consumed is the type answered
- *
- * All other conditions are errors, and a problem binding is returned.
- *
- * NOTE: If a problem binding is returned, senders should extract the compound name
- * from the binding & not assume the problem applies to the entire compoundName.
- *
- * The VARIABLE mask has precedence over the TYPE mask.
- *
- * InvocationSite implements
- * isSuperAccess(); this is used to determine if the discovered field is visible.
- * setFieldIndex(int); this is used to record the number of names that were consumed.
- *
- * For example, getBinding({"foo","y","q", VARIABLE, site) will answer
- * the binding for the field or local named "foo" (or an error binding if none exists).
- * In addition, setFieldIndex(1) will be sent to the invocation site.
- * If a type named "foo" exists, it will not be detected (and an error binding will be answered)
- *
- * IMPORTANT NOTE: This method is written under the assumption that compoundName is longer than length 1.
- */
- public Binding getBinding(char[][] compoundName, int mask, InvocationSite invocationSite) {
-
- Binding binding = getBinding(compoundName[0], mask | TYPE | PACKAGE, invocationSite);
- invocationSite.setFieldIndex(1);
- if (binding instanceof VariableBinding) return binding;
- compilationUnitScope().recordSimpleReference(compoundName[0]);
- if (!binding.isValidBinding()) return binding;
-
- int length = compoundName.length;
- int currentIndex = 1;
- foundType : if (binding instanceof PackageBinding) {
- PackageBinding packageBinding = (PackageBinding) binding;
- while (currentIndex < length) {
- compilationUnitScope().recordReference(packageBinding.compoundName, compoundName[currentIndex]);
- binding = packageBinding.getTypeOrPackage(compoundName[currentIndex++]);
- invocationSite.setFieldIndex(currentIndex);
- if (binding == null) {
- if (currentIndex == length)
- // must be a type if its the last name, otherwise we have no idea if its a package or type
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- NotFound);
- else
- return new ProblemBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- NotFound);
- }
- if (binding instanceof ReferenceBinding) {
- if (!binding.isValidBinding())
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding.problemId());
- if (!((ReferenceBinding) binding).canBeSeenBy(this))
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding,
- NotVisible);
- break foundType;
- }
- packageBinding = (PackageBinding) binding;
- }
-
- // It is illegal to request a PACKAGE from this method.
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- NotFound);
- }
-
- // know binding is now a ReferenceBinding
- while (currentIndex < length) {
- ReferenceBinding typeBinding = (ReferenceBinding) binding;
- char[] nextName = compoundName[currentIndex++];
- invocationSite.setFieldIndex(currentIndex);
- invocationSite.setActualReceiverType(typeBinding);
- if ((binding = findField(typeBinding, nextName, invocationSite)) != null) {
- if (!binding.isValidBinding())
- return new ProblemFieldBinding(
- ((FieldBinding) binding).declaringClass,
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding.problemId());
- break; // binding is now a field
- }
- if ((binding = findMemberType(nextName, typeBinding)) == null)
- return new ProblemBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- typeBinding,
- NotFound);
- if (!binding.isValidBinding())
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding.problemId());
- }
-
- if ((mask & FIELD) != 0 && (binding instanceof FieldBinding)) {
- // was looking for a field and found a field
- FieldBinding field = (FieldBinding) binding;
- if (!field.isStatic())
- return new ProblemFieldBinding(
- field.declaringClass,
- CharOperation.subarray(compoundName, 0, currentIndex),
- NonStaticReferenceInStaticContext);
- return binding;
- }
- if ((mask & TYPE) != 0 && (binding instanceof ReferenceBinding)) {
- // was looking for a type and found a type
- return binding;
- }
-
- // handle the case when a field or type was asked for but we resolved the compoundName to a type or field
- return new ProblemBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- NotFound);
- }
-
- // Added for code assist... NOT Public API
- public final Binding getBinding(
- char[][] compoundName,
- InvocationSite invocationSite) {
- int currentIndex = 0;
- int length = compoundName.length;
- Binding binding =
- getBinding(
- compoundName[currentIndex++],
- VARIABLE | TYPE | PACKAGE,
- invocationSite);
- if (!binding.isValidBinding())
- return binding;
-
- foundType : if (binding instanceof PackageBinding) {
- while (currentIndex < length) {
- PackageBinding packageBinding = (PackageBinding) binding;
- binding = packageBinding.getTypeOrPackage(compoundName[currentIndex++]);
- if (binding == null) {
- if (currentIndex == length)
- // must be a type if its the last name, otherwise we have no idea if its a package or type
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- NotFound);
- else
- return new ProblemBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- NotFound);
- }
- if (binding instanceof ReferenceBinding) {
- if (!binding.isValidBinding())
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding.problemId());
- if (!((ReferenceBinding) binding).canBeSeenBy(this))
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding,
- NotVisible);
- break foundType;
- }
- }
- return binding;
- }
-
- foundField : if (binding instanceof ReferenceBinding) {
- while (currentIndex < length) {
- ReferenceBinding typeBinding = (ReferenceBinding) binding;
- char[] nextName = compoundName[currentIndex++];
- if ((binding = findField(typeBinding, nextName, invocationSite)) != null) {
- if (!binding.isValidBinding())
- return new ProblemFieldBinding(
- ((FieldBinding) binding).declaringClass,
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding.problemId());
- if (!((FieldBinding) binding).isStatic())
- return new ProblemFieldBinding(
- ((FieldBinding) binding).declaringClass,
- CharOperation.subarray(compoundName, 0, currentIndex),
- NonStaticReferenceInStaticContext);
- break foundField; // binding is now a field
- }
- if ((binding = findMemberType(nextName, typeBinding)) == null)
- return new ProblemBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- typeBinding,
- NotFound);
- if (!binding.isValidBinding())
- return new ProblemReferenceBinding(
- CharOperation.subarray(compoundName, 0, currentIndex),
- binding.problemId());
- }
- return binding;
- }
-
- VariableBinding variableBinding = (VariableBinding) binding;
- while (currentIndex < length) {
- TypeBinding typeBinding = variableBinding.type;
- if (typeBinding == null)
- return new ProblemFieldBinding(
- null,
- CharOperation.subarray(compoundName, 0, currentIndex + 1),
- NotFound);
- variableBinding =
- findField(typeBinding, compoundName[currentIndex++], invocationSite);
- if (variableBinding == null)
- return new ProblemFieldBinding(
- null,
- CharOperation.subarray(compoundName, 0, currentIndex),
- NotFound);
- if (!variableBinding.isValidBinding())
- return variableBinding;
- }
- return variableBinding;
- }
-
- /* API
- *
- * Answer the binding that corresponds to the argument name.
- * flag is a mask of the following values VARIABLE (= FIELD or LOCAL), TYPE, PACKAGE.
- * Only bindings corresponding to the mask can be answered.
- *
- * For example, getBinding("foo", VARIABLE, site) will answer
- * the binding for the field or local named "foo" (or an error binding if none exists).
- * If a type named "foo" exists, it will not be detected (and an error binding will be answered)
- *
- * The VARIABLE mask has precedence over the TYPE mask.
- *
- * If the VARIABLE mask is not set, neither fields nor locals will be looked for.
- *
- * InvocationSite implements:
- * isSuperAccess(); this is used to determine if the discovered field is visible.
- *
- * Limitations: cannot request FIELD independently of LOCAL, or vice versa
- */
- public Binding getBinding(char[] name, int mask, InvocationSite invocationSite) {
-
- Binding binding = null;
- FieldBinding problemField = null;
- if ((mask & VARIABLE) != 0) {
- if (this.kind == BLOCK_SCOPE || this.kind == METHOD_SCOPE) {
- LocalVariableBinding variableBinding = findVariable(name);
- // looks in this scope only
- if (variableBinding != null) return variableBinding;
- }
-
- boolean insideStaticContext = false;
- boolean insideConstructorCall = false;
- if (this.kind == METHOD_SCOPE) {
- MethodScope methodScope = (MethodScope) this;
- insideStaticContext |= methodScope.isStatic;
- insideConstructorCall |= methodScope.isConstructorCall;
- }
-
- FieldBinding foundField = null;
- // can be a problem field which is answered if a valid field is not found
- ProblemFieldBinding foundInsideProblem = null;
- // inside Constructor call or inside static context
- Scope scope = parent;
- int depth = 0;
- int foundDepth = 0;
- ReferenceBinding foundActualReceiverType = null;
- done : while (true) { // done when a COMPILATION_UNIT_SCOPE is found
- switch (scope.kind) {
- case METHOD_SCOPE :
- MethodScope methodScope = (MethodScope) scope;
- insideStaticContext |= methodScope.isStatic;
- insideConstructorCall |= methodScope.isConstructorCall;
- // Fall through... could duplicate the code below to save a cast - questionable optimization
- case BLOCK_SCOPE :
- LocalVariableBinding variableBinding = ((BlockScope) scope).findVariable(name);
- // looks in this scope only
- if (variableBinding != null) {
- if (foundField != null && foundField.isValidBinding())
- return new ProblemFieldBinding(
- foundField.declaringClass,
- name,
- InheritedNameHidesEnclosingName);
- if (depth > 0)
- invocationSite.setDepth(depth);
- return variableBinding;
- }
- break;
- case CLASS_SCOPE :
- ClassScope classScope = (ClassScope) scope;
- SourceTypeBinding enclosingType = classScope.referenceContext.binding;
- FieldBinding fieldBinding =
- classScope.findField(enclosingType, name, invocationSite);
- // Use next line instead if willing to enable protected access accross inner types
- // FieldBinding fieldBinding = findField(enclosingType, name, invocationSite);
- if (fieldBinding != null) { // skip it if we did not find anything
- if (fieldBinding.problemId() == Ambiguous) {
- if (foundField == null || foundField.problemId() == NotVisible)
- // supercedes any potential InheritedNameHidesEnclosingName problem
- return fieldBinding;
- else
- // make the user qualify the field, likely wants the first inherited field (javac generates an ambiguous error instead)
- return new ProblemFieldBinding(
- fieldBinding.declaringClass,
- name,
- InheritedNameHidesEnclosingName);
- }
-
- ProblemFieldBinding insideProblem = null;
- if (fieldBinding.isValidBinding()) {
- if (!fieldBinding.isStatic()) {
- if (insideConstructorCall) {
- insideProblem =
- new ProblemFieldBinding(
- fieldBinding.declaringClass,
- name,
- NonStaticReferenceInConstructorInvocation);
- } else if (insideStaticContext) {
- insideProblem =
- new ProblemFieldBinding(
- fieldBinding.declaringClass,
- name,
- NonStaticReferenceInStaticContext);
- }
- }
- if (enclosingType == fieldBinding.declaringClass
- || environment().options.complianceLevel >= CompilerOptions.JDK1_4){
- // found a valid field in the 'immediate' scope (ie. not inherited)
- // OR in 1.4 mode (inherited shadows enclosing)
- if (foundField == null) {
- if (depth > 0){
- invocationSite.setDepth(depth);
- invocationSite.setActualReceiverType(enclosingType);
- }
- // return the fieldBinding if it is not declared in a superclass of the scope's binding (i.e. "inherited")
- return insideProblem == null ? fieldBinding : insideProblem;
- }
- if (foundField.isValidBinding())
- // if a valid field was found, complain when another is found in an 'immediate' enclosing type (ie. not inherited)
- if (foundField.declaringClass != fieldBinding.declaringClass)
- // ie. have we found the same field - do not trust field identity yet
- return new ProblemFieldBinding(
- fieldBinding.declaringClass,
- name,
- InheritedNameHidesEnclosingName);
- }
- }
-
- if (foundField == null
- || (foundField.problemId() == NotVisible
- && fieldBinding.problemId() != NotVisible)) {
- // only remember the fieldBinding if its the first one found or the previous one was not visible & fieldBinding is...
- foundDepth = depth;
- foundActualReceiverType = enclosingType;
- foundInsideProblem = insideProblem;
- foundField = fieldBinding;
- }
- }
- depth++;
- insideStaticContext |= enclosingType.isStatic();
- // 1EX5I8Z - accessing outer fields within a constructor call is permitted
- // in order to do so, we change the flag as we exit from the type, not the method
- // itself, because the class scope is used to retrieve the fields.
- MethodScope enclosingMethodScope = scope.methodScope();
- insideConstructorCall =
- enclosingMethodScope == null ? false : enclosingMethodScope.isConstructorCall;
- break;
- case COMPILATION_UNIT_SCOPE :
- break done;
- }
- scope = scope.parent;
- }
-
- if (foundInsideProblem != null){
- return foundInsideProblem;
- }
- if (foundField != null) {
- if (foundField.isValidBinding()){
- if (foundDepth > 0){
- invocationSite.setDepth(foundDepth);
- invocationSite.setActualReceiverType(foundActualReceiverType);
- }
- return foundField;
- }
- problemField = foundField;
- }
- }
-
- // We did not find a local or instance variable.
- if ((mask & TYPE) != 0) {
- if ((binding = getBaseType(name)) != null)
- return binding;
- binding = getTypeOrPackage(name, (mask & PACKAGE) == 0 ? TYPE : TYPE | PACKAGE);
- if (binding.isValidBinding() || mask == TYPE)
- return binding;
- // answer the problem type binding if we are only looking for a type
- } else if ((mask & PACKAGE) != 0) {
- compilationUnitScope().recordSimpleReference(name);
- if ((binding = environment().getTopLevelPackage(name)) != null)
- return binding;
- }
- if (problemField != null)
- return problemField;
- else
- return new ProblemBinding(name, enclosingSourceType(), NotFound);
- }
-
- /*
- * This retrieves the argument that maps to an enclosing instance of the suitable type,
- * if not found then answers nil -- do not create one
- *
- * #implicitThis : the implicit this will be ok
- * #((arg) this$n) : available as a constructor arg
- * #((arg) this$n access$m... access$p) : available as as a constructor arg + a sequence of synthetic accessors to synthetic fields
- * #((fieldDescr) this$n access#m... access$p) : available as a first synthetic field + a sequence of synthetic accessors to synthetic fields
- * nil : not found
- *
- */
- public Object[] getCompatibleEmulationPath(ReferenceBinding targetEnclosingType) {
-
- MethodScope currentMethodScope = this.methodScope();
- SourceTypeBinding sourceType = currentMethodScope.enclosingSourceType();
-
- // identity check
- if (!currentMethodScope.isStatic
- && !currentMethodScope.isConstructorCall
- && (sourceType == targetEnclosingType
- || targetEnclosingType.isSuperclassOf(sourceType))) {
- return EmulationPathToImplicitThis; // implicit this is good enough
- }
- if (!sourceType.isNestedType()
- || sourceType.isStatic()) { // no emulation from within non-inner types
- return null;
- }
- boolean insideConstructor =
- currentMethodScope.isInsideInitializerOrConstructor();
- // use synthetic constructor arguments if possible
- if (insideConstructor) {
- SyntheticArgumentBinding syntheticArg;
- if ((syntheticArg = ((NestedTypeBinding) sourceType).getSyntheticArgument(targetEnclosingType, this, false)) != null) {
- return new Object[] { syntheticArg };
- }
- }
-
- // use a direct synthetic field then
- if (!currentMethodScope.isStatic) {
- FieldBinding syntheticField;
- if ((syntheticField = sourceType.getSyntheticField(targetEnclosingType, this, false)) != null) {
- return new Object[] { syntheticField };
- }
- // could be reached through a sequence of enclosing instance link (nested members)
- Object[] path = new Object[2]; // probably at least 2 of them
- ReferenceBinding currentType = sourceType.enclosingType();
- if (insideConstructor) {
- path[0] = ((NestedTypeBinding) sourceType).getSyntheticArgument((SourceTypeBinding) currentType, this, false);
- } else {
- path[0] =
- sourceType.getSyntheticField((SourceTypeBinding) currentType, this, false);
- }
- if (path[0] != null) { // keep accumulating
- int count = 1;
- ReferenceBinding currentEnclosingType;
- while ((currentEnclosingType = currentType.enclosingType()) != null) {
- //done?
- if (currentType == targetEnclosingType
- || targetEnclosingType.isSuperclassOf(currentType))
- break;
- syntheticField = ((NestedTypeBinding) currentType).getSyntheticField((SourceTypeBinding) currentEnclosingType, this, false);
- if (syntheticField == null)
- break;
- // append inside the path
- if (count == path.length) {
- System.arraycopy(path, 0, (path = new Object[count + 1]), 0, count);
- }
- // private access emulation is necessary since synthetic field is private
- path[count++] = ((SourceTypeBinding) syntheticField.declaringClass).addSyntheticMethod(syntheticField, true);
- currentType = currentEnclosingType;
- }
- if (currentType == targetEnclosingType
- || targetEnclosingType.isSuperclassOf(currentType)) {
- return path;
- }
- }
- }
- return null;
- }
-
- /* API
- *
- * Answer the constructor binding that corresponds to receiverType, argumentTypes.
- *
- * InvocationSite implements
- * isSuperAccess(); this is used to determine if the discovered constructor is visible.
- *
- * If no visible constructor is discovered, an error binding is answered.
- */
- public MethodBinding getConstructor(
- ReferenceBinding receiverType,
- TypeBinding[] argumentTypes,
- InvocationSite invocationSite) {
-
- compilationUnitScope().recordTypeReference(receiverType);
- compilationUnitScope().recordTypeReferences(argumentTypes);
- MethodBinding methodBinding = receiverType.getExactConstructor(argumentTypes);
- if (methodBinding != null)
- if (methodBinding.canBeSeenBy(invocationSite, this))
- return methodBinding;
-
- MethodBinding[] methods =
- receiverType.getMethods(ConstructorDeclaration.ConstantPoolName);
- if (methods == NoMethods)
- return new ProblemMethodBinding(
- ConstructorDeclaration.ConstantPoolName,
- argumentTypes,
- NotFound);
-
- MethodBinding[] compatible = new MethodBinding[methods.length];
- int compatibleIndex = 0;
- for (int i = 0, length = methods.length; i < length; i++)
- if (areParametersAssignable(methods[i].parameters, argumentTypes))
- compatible[compatibleIndex++] = methods[i];
- if (compatibleIndex == 0)
- return new ProblemMethodBinding(
- ConstructorDeclaration.ConstantPoolName,
- argumentTypes,
- NotFound);
- // need a more descriptive error... cannot convert from X to Y
-
- MethodBinding[] visible = new MethodBinding[compatibleIndex];
- int visibleIndex = 0;
- for (int i = 0; i < compatibleIndex; i++) {
- MethodBinding method = compatible[i];
- if (method.canBeSeenBy(invocationSite, this))
- visible[visibleIndex++] = method;
- }
- if (visibleIndex == 1)
- return visible[0];
- if (visibleIndex == 0)
- return new ProblemMethodBinding(
- ConstructorDeclaration.ConstantPoolName,
- argumentTypes,
- NotVisible);
- return mostSpecificClassMethodBinding(visible, visibleIndex);
- }
-
- /*
- * This retrieves the argument that maps to an enclosing instance of the suitable type,
- * if not found then answers nil -- do not create one
- *
- * #implicitThis : the implicit this will be ok
- * #((arg) this$n) : available as a constructor arg
- * #((arg) this$n ... this$p) : available as as a constructor arg + a sequence of fields
- * #((fieldDescr) this$n ... this$p) : available as a sequence of fields
- * nil : not found
- *
- * Note that this algorithm should answer the shortest possible sequence when
- * shortcuts are available:
- * this$0 . this$0 . this$0
- * instead of
- * this$2 . this$1 . this$0 . this$1 . this$0
- * thus the code generation will be more compact and runtime faster
- */
- public VariableBinding[] getEmulationPath(LocalVariableBinding outerLocalVariable) {
-
- MethodScope currentMethodScope = this.methodScope();
- SourceTypeBinding sourceType = currentMethodScope.enclosingSourceType();
-
- // identity check
- if (currentMethodScope == outerLocalVariable.declaringScope.methodScope()) {
- return new VariableBinding[] { outerLocalVariable };
- // implicit this is good enough
- }
- // use synthetic constructor arguments if possible
- if (currentMethodScope.isInsideInitializerOrConstructor()
- && (sourceType.isNestedType())) {
- SyntheticArgumentBinding syntheticArg;
- if ((syntheticArg = ((NestedTypeBinding) sourceType).getSyntheticArgument(outerLocalVariable)) != null) {
- return new VariableBinding[] { syntheticArg };
- }
- }
- // use a synthetic field then
- if (!currentMethodScope.isStatic) {
- FieldBinding syntheticField;
- if ((syntheticField = sourceType.getSyntheticField(outerLocalVariable)) != null) {
- return new VariableBinding[] { syntheticField };
- }
- }
- return null;
- }
-
- /*
- * This retrieves the argument that maps to an enclosing instance of the suitable type,
- * if not found then answers nil -- do not create one
- *
- * #implicitThis : the implicit this will be ok
- * #((arg) this$n) : available as a constructor arg
- * #((arg) this$n access$m... access$p) : available as as a constructor arg + a sequence of synthetic accessors to synthetic fields
- * #((fieldDescr) this$n access#m... access$p) : available as a first synthetic field + a sequence of synthetic accessors to synthetic fields
- * nil : not found
- *
- * EXACT MATCH VERSION - no type compatibility is performed
- */
- public Object[] getExactEmulationPath(ReferenceBinding targetEnclosingType) {
-
- MethodScope currentMethodScope = this.methodScope();
- SourceTypeBinding sourceType = currentMethodScope.enclosingSourceType();
-
- // identity check
- if (!currentMethodScope.isStatic
- && !currentMethodScope.isConstructorCall
- && (sourceType == targetEnclosingType)) {
- return EmulationPathToImplicitThis; // implicit this is good enough
- }
- if (!sourceType.isNestedType()
- || sourceType.isStatic()) { // no emulation from within non-inner types
- return null;
- }
-
- boolean insideConstructor =
- currentMethodScope.isInsideInitializerOrConstructor();
- // use synthetic constructor arguments if possible
- if (insideConstructor) {
- SyntheticArgumentBinding syntheticArg;
- if ((syntheticArg = ((NestedTypeBinding) sourceType).getSyntheticArgument(targetEnclosingType, this, true)) != null) {
- return new Object[] { syntheticArg };
- }
- }
- // use a direct synthetic field then
- if (!currentMethodScope.isStatic) {
- FieldBinding syntheticField;
- if ((syntheticField = sourceType.getSyntheticField(targetEnclosingType, this, true)) != null) {
- return new Object[] { syntheticField };
- }
- // could be reached through a sequence of enclosing instance link (nested members)
- Object[] path = new Object[2]; // probably at least 2 of them
- ReferenceBinding currentType = sourceType.enclosingType();
- if (insideConstructor) {
- path[0] =
- ((NestedTypeBinding) sourceType).getSyntheticArgument((SourceTypeBinding) currentType, this, true);
- } else {
- path[0] =
- sourceType.getSyntheticField((SourceTypeBinding) currentType, this, true);
- }
- if (path[0] != null) { // keep accumulating
- int count = 1;
- ReferenceBinding currentEnclosingType;
- while ((currentEnclosingType = currentType.enclosingType()) != null) {
- //done?
- if (currentType == targetEnclosingType)
- break;
- syntheticField =
- ((NestedTypeBinding) currentType).getSyntheticField(
- (SourceTypeBinding) currentEnclosingType,
- this,
- true);
- if (syntheticField == null)
- break;
- // append inside the path
- if (count == path.length) {
- System.arraycopy(path, 0, (path = new Object[count + 1]), 0, count);
- }
- // private access emulation is necessary since synthetic field is private
- path[count++] = ((SourceTypeBinding) syntheticField.declaringClass).addSyntheticMethod(syntheticField, true);
- currentType = currentEnclosingType;
- }
- if (currentType == targetEnclosingType) {
- return path;
- }
- }
- }
- return null;
- }
-
- /* API
- *
- * Answer the field binding that corresponds to fieldName.
- * Start the lookup at the receiverType.
- * InvocationSite implements
- * isSuperAccess(); this is used to determine if the discovered field is visible.
- * Only fields defined by the receiverType or its supertypes are answered;
- * a field of an enclosing type will not be found using this API.
- *
- * If no visible field is discovered, an error binding is answered.
- */
- public FieldBinding getField(
- TypeBinding receiverType,
- char[] fieldName,
- InvocationSite invocationSite) {
-
- FieldBinding field = findField(receiverType, fieldName, invocationSite);
- if (field == null)
- return new ProblemFieldBinding(
- receiverType instanceof ReferenceBinding
- ? (ReferenceBinding) receiverType
- : null,
- fieldName,
- NotFound);
- else
- return field;
- }
-
- /* API
- *
- * Answer the method binding that corresponds to selector, argumentTypes.
- * Start the lookup at the enclosing type of the receiver.
- * InvocationSite implements
- * isSuperAccess(); this is used to determine if the discovered method is visible.
- * setDepth(int); this is used to record the depth of the discovered method
- * relative to the enclosing type of the receiver. (If the method is defined
- * in the enclosing type of the receiver, the depth is 0; in the next enclosing
- * type, the depth is 1; and so on
- *
- * If no visible method is discovered, an error binding is answered.
- */
- public MethodBinding getImplicitMethod(
- char[] selector,
- TypeBinding[] argumentTypes,
- InvocationSite invocationSite) {
-
- boolean insideStaticContext = false;
- boolean insideConstructorCall = false;
- MethodBinding foundMethod = null;
- ProblemMethodBinding foundFuzzyProblem = null;
- // the weird method lookup case (matches method name in scope, then arg types, then visibility)
- ProblemMethodBinding foundInsideProblem = null;
- // inside Constructor call or inside static context
- Scope scope = this;
- int depth = 0;
- done : while (true) { // done when a COMPILATION_UNIT_SCOPE is found
- switch (scope.kind) {
- case METHOD_SCOPE :
- MethodScope methodScope = (MethodScope) scope;
- insideStaticContext |= methodScope.isStatic;
- insideConstructorCall |= methodScope.isConstructorCall;
- break;
- case CLASS_SCOPE :
- ClassScope classScope = (ClassScope) scope;
- SourceTypeBinding receiverType = classScope.referenceContext.binding;
- boolean isExactMatch = true;
- // retrieve an exact visible match (if possible)
- MethodBinding methodBinding =
- (foundMethod == null)
- ? classScope.findExactMethod(
- receiverType,
- selector,
- argumentTypes,
- invocationSite)
- : classScope.findExactMethod(
- receiverType,
- foundMethod.selector,
- foundMethod.parameters,
- invocationSite);
- // ? findExactMethod(receiverType, selector, argumentTypes, invocationSite)
- // : findExactMethod(receiverType, foundMethod.selector, foundMethod.parameters, invocationSite);
- if (methodBinding == null) {
- // answers closest approximation, may not check argumentTypes or visibility
- isExactMatch = false;
- methodBinding =
- classScope.findMethod(receiverType, selector, argumentTypes, invocationSite);
- // methodBinding = findMethod(receiverType, selector, argumentTypes, invocationSite);
- }
- if (methodBinding != null) { // skip it if we did not find anything
- if (methodBinding.problemId() == Ambiguous) {
- if (foundMethod == null || foundMethod.problemId() == NotVisible)
- // supercedes any potential InheritedNameHidesEnclosingName problem
- return methodBinding;
- else
- // make the user qualify the method, likely wants the first inherited method (javac generates an ambiguous error instead)
- return new ProblemMethodBinding(
- selector,
- argumentTypes,
- InheritedNameHidesEnclosingName);
- }
-
- ProblemMethodBinding fuzzyProblem = null;
- ProblemMethodBinding insideProblem = null;
- if (methodBinding.isValidBinding()) {
- if (!isExactMatch) {
- if (!areParametersAssignable(methodBinding.parameters, argumentTypes)) {
- if (foundMethod == null || foundMethod.problemId() == NotVisible){
- // inherited mismatch is reported directly, not looking at enclosing matches
- return new ProblemMethodBinding(methodBinding, selector, argumentTypes, NotFound);
- }
- // make the user qualify the method, likely wants the first inherited method (javac generates an ambiguous error instead)
- fuzzyProblem = new ProblemMethodBinding(selector, argumentTypes, InheritedNameHidesEnclosingName);
-
- } else if (!methodBinding.canBeSeenBy(receiverType, invocationSite, classScope)) {
- // using <classScope> instead of <this> for visibility check does grant all access to innerclass
- fuzzyProblem =
- new ProblemMethodBinding(
- selector,
- argumentTypes,
- methodBinding.declaringClass,
- NotVisible);
- }
- }
- if (fuzzyProblem == null && !methodBinding.isStatic()) {
- if (insideConstructorCall) {
- insideProblem =
- new ProblemMethodBinding(
- methodBinding.selector,
- methodBinding.parameters,
- NonStaticReferenceInConstructorInvocation);
- } else if (insideStaticContext) {
- insideProblem =
- new ProblemMethodBinding(
- methodBinding.selector,
- methodBinding.parameters,
- NonStaticReferenceInStaticContext);
- }
- }
-
- if (receiverType == methodBinding.declaringClass
- || (receiverType.getMethods(selector)) != NoMethods
- || ((fuzzyProblem == null || fuzzyProblem.problemId() != NotVisible) && environment().options.complianceLevel >= CompilerOptions.JDK1_4)){
- // found a valid method in the 'immediate' scope (ie. not inherited)
- // OR the receiverType implemented a method with the correct name
- // OR in 1.4 mode (inherited visible shadows enclosing)
- if (foundMethod == null) {
- if (depth > 0){
- invocationSite.setDepth(depth);
- invocationSite.setActualReceiverType(receiverType);
- }
- // return the methodBinding if it is not declared in a superclass of the scope's binding (i.e. "inherited")
- if (fuzzyProblem != null)
- return fuzzyProblem;
- if (insideProblem != null)
- return insideProblem;
- return methodBinding;
- }
- // if a method was found, complain when another is found in an 'immediate' enclosing type (ie. not inherited)
- // NOTE: Unlike fields, a non visible method hides a visible method
- if (foundMethod.declaringClass != methodBinding.declaringClass)
- // ie. have we found the same method - do not trust field identity yet
- return new ProblemMethodBinding(
- methodBinding.selector,
- methodBinding.parameters,
- InheritedNameHidesEnclosingName);
- }
- }
-
- if (foundMethod == null
- || (foundMethod.problemId() == NotVisible
- && methodBinding.problemId() != NotVisible)) {
- // only remember the methodBinding if its the first one found or the previous one was not visible & methodBinding is...
- // remember that private methods are visible if defined directly by an enclosing class
- if (depth > 0){
- invocationSite.setDepth(depth);
- invocationSite.setActualReceiverType(receiverType);
- }
- foundFuzzyProblem = fuzzyProblem;
- foundInsideProblem = insideProblem;
- if (fuzzyProblem == null)
- foundMethod = methodBinding; // only keep it if no error was found
- }
- }
- depth++;
- insideStaticContext |= receiverType.isStatic();
- // 1EX5I8Z - accessing outer fields within a constructor call is permitted
- // in order to do so, we change the flag as we exit from the type, not the method
- // itself, because the class scope is used to retrieve the fields.
- MethodScope enclosingMethodScope = scope.methodScope();
- insideConstructorCall =
- enclosingMethodScope == null ? false : enclosingMethodScope.isConstructorCall;
- break;
- case COMPILATION_UNIT_SCOPE :
- break done;
- }
- scope = scope.parent;
- }
-
- if (foundFuzzyProblem != null)
- return foundFuzzyProblem;
- if (foundInsideProblem != null)
- return foundInsideProblem;
- if (foundMethod != null)
- return foundMethod;
- return new ProblemMethodBinding(selector, argumentTypes, NotFound);
- }
-
- /* API
- *
- * Answer the method binding that corresponds to selector, argumentTypes.
- * Start the lookup at the receiverType.
- * InvocationSite implements
- * isSuperAccess(); this is used to determine if the discovered method is visible.
- *
- * Only methods defined by the receiverType or its supertypes are answered;
- * use getImplicitMethod() to discover methods of enclosing types.
- *
- * If no visible method is discovered, an error binding is answered.
- */
- public MethodBinding getMethod(
- TypeBinding receiverType,
- char[] selector,
- TypeBinding[] argumentTypes,
- InvocationSite invocationSite) {
-
- if (receiverType.isArrayType())
- return findMethodForArray(
- (ArrayBinding) receiverType,
- selector,
- argumentTypes,
- invocationSite);
- if (receiverType.isBaseType())
- return new ProblemMethodBinding(selector, argumentTypes, NotFound);
-
- ReferenceBinding currentType = (ReferenceBinding) receiverType;
- if (!currentType.canBeSeenBy(this))
- return new ProblemMethodBinding(selector, argumentTypes, NotVisible);
- // *** Need a new problem id - TypeNotVisible?
-
- // retrieve an exact visible match (if possible)
- MethodBinding methodBinding =
- findExactMethod(currentType, selector, argumentTypes, invocationSite);
- if (methodBinding != null)
- return methodBinding;
-
- // answers closest approximation, may not check argumentTypes or visibility
- methodBinding =
- findMethod(currentType, selector, argumentTypes, invocationSite);
- if (methodBinding == null)
- return new ProblemMethodBinding(selector, argumentTypes, NotFound);
- if (methodBinding.isValidBinding()) {
- if (!areParametersAssignable(methodBinding.parameters, argumentTypes))
- return new ProblemMethodBinding(
- methodBinding,
- selector,
- argumentTypes,
- NotFound);
- if (!methodBinding.canBeSeenBy(currentType, invocationSite, this))
- return new ProblemMethodBinding(
- selector,
- argumentTypes,
- methodBinding.declaringClass,
- NotVisible);
- }
- return methodBinding;
- }
-
- public int maxShiftedOffset() {
- int max = -1;
- if (this.shiftScopes != null){
- for (int i = 0, length = this.shiftScopes.length; i < length; i++){
- int subMaxOffset = this.shiftScopes[i].maxOffset;
- if (subMaxOffset > max) max = subMaxOffset;
- }
- }
- return max;
- }
-
- /* Answer the problem reporter to use for raising new problems.
- *
- * Note that as a side-effect, this updates the current reference context
- * (unit, type or method) in case the problem handler decides it is necessary
- * to abort.
- */
- public ProblemReporter problemReporter() {
-
- return outerMostMethodScope().problemReporter();
- }
-
- /*
- * Code responsible to request some more emulation work inside the invocation type, so as to supply
- * correct synthetic arguments to any allocation of the target type.
- */
- public void propagateInnerEmulation(
- ReferenceBinding targetType,
- boolean isEnclosingInstanceSupplied,
- boolean useDirectReference) {
-
- // perform some emulation work in case there is some and we are inside a local type only
- // propage emulation of the enclosing instances
- ReferenceBinding[] syntheticArgumentTypes;
- if ((syntheticArgumentTypes = targetType.syntheticEnclosingInstanceTypes())
- != null) {
- for (int i = 0, max = syntheticArgumentTypes.length; i < max; i++) {
- ReferenceBinding syntheticArgType = syntheticArgumentTypes[i];
- // need to filter out the one that could match a supplied enclosing instance
- if (!(isEnclosingInstanceSupplied
- && (syntheticArgType == targetType.enclosingType()))) {
- this.emulateOuterAccess(syntheticArgType, useDirectReference);
- }
- }
- }
- SyntheticArgumentBinding[] syntheticArguments;
- if ((syntheticArguments = targetType.syntheticOuterLocalVariables()) != null) {
- for (int i = 0, max = syntheticArguments.length; i < max; i++) {
- SyntheticArgumentBinding syntheticArg = syntheticArguments[i];
- // need to filter out the one that could match a supplied enclosing instance
- if (!(isEnclosingInstanceSupplied
- && (syntheticArg.type == targetType.enclosingType()))) {
- this.emulateOuterAccess(syntheticArg.actualOuterLocalVariable);
- }
- }
- }
- }
-
- /* Answer the reference type of this scope.
- *
- * i.e. the nearest enclosing type of this scope.
- */
- public TypeDeclaration referenceType() {
-
- return methodScope().referenceType();
- }
-
- // start position in this scope - for ordering scopes vs. variables
- int startIndex() {
- return startIndex;
- }
-
- public String toString() {
- return toString(0);
- }
-
- public String toString(int tab) {
-
- String s = basicToString(tab);
- for (int i = 0; i < scopeIndex; i++)
- if (subscopes[i] instanceof BlockScope)
- s += ((BlockScope) subscopes[i]).toString(tab + 1) + "\n"; //$NON-NLS-1$
- return s;
- }
-}
\ No newline at end of file
git://git.phpeclipse.com / phpeclipse.git / blobdiff