+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2003 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 net.sourceforge.phpeclipse.internal.compiler.ast;
-
-import net.sourceforge.phpdt.internal.compiler.ASTVisitor;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowContext;
-import net.sourceforge.phpdt.internal.compiler.flow.FlowInfo;
-import net.sourceforge.phpdt.internal.compiler.impl.Constant;
-import net.sourceforge.phpdt.internal.compiler.lookup.ArrayBinding;
-import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
-import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
-
-public class ArrayReference extends Reference {
-
- public Expression receiver;
- public Expression position;
-
- public ArrayReference(Expression rec, Expression pos) {
- this.receiver = rec;
- this.position = pos;
- sourceStart = rec.sourceStart;
- }
-
- public FlowInfo analyseAssignment(
- BlockScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo,
- Assignment assignment,
- boolean compoundAssignment) {
-
- if (assignment.expression == null) {
- return analyseCode(currentScope, flowContext, flowInfo).unconditionalInits();
- } else {
- return assignment
- .expression
- .analyseCode(
- currentScope,
- flowContext,
- analyseCode(currentScope, flowContext, flowInfo).unconditionalInits())
- .unconditionalInits();
- }
- }
-
- public FlowInfo analyseCode(
- BlockScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo) {
-
- return position.analyseCode(
- currentScope,
- flowContext,
- receiver.analyseCode(currentScope, flowContext, flowInfo));
- }
-
-// public void generateAssignment(
-// BlockScope currentScope,
-// CodeStream codeStream,
-// Assignment assignment,
-// boolean valueRequired) {
-//
-// receiver.generateCode(currentScope, codeStream, true);
-// position.generateCode(currentScope, codeStream, true);
-// assignment.expression.generateCode(currentScope, codeStream, true);
-// codeStream.arrayAtPut(this.resolvedType.id, valueRequired);
-// if (valueRequired) {
-// codeStream.generateImplicitConversion(assignment.implicitConversion);
-// }
-// }
-
- /**
- * Code generation for a array reference
- */
-// public void generateCode(
-// BlockScope currentScope,
-// CodeStream codeStream,
-// boolean valueRequired) {
-//
-// int pc = codeStream.position;
-// receiver.generateCode(currentScope, codeStream, true);
-// position.generateCode(currentScope, codeStream, true);
-// codeStream.arrayAt(this.resolvedType.id);
-// // Generating code for the potential runtime type checking
-// if (valueRequired) {
-// codeStream.generateImplicitConversion(implicitConversion);
-// } else {
-// if (this.resolvedType == LongBinding
-// || this.resolvedType == DoubleBinding) {
-// codeStream.pop2();
-// } else {
-// codeStream.pop();
-// }
-// }
-// codeStream.recordPositionsFrom(pc, this.sourceStart);
-// }
-//
-// public void generateCompoundAssignment(
-// BlockScope currentScope,
-// CodeStream codeStream,
-// Expression expression,
-// int operator,
-// int assignmentImplicitConversion,
-// boolean valueRequired) {
-//
-// receiver.generateCode(currentScope, codeStream, true);
-// position.generateCode(currentScope, codeStream, true);
-// codeStream.dup2();
-// codeStream.arrayAt(this.resolvedType.id);
-// int operationTypeID;
-// if ((operationTypeID = implicitConversion >> 4) == T_String) {
-// codeStream.generateStringAppend(currentScope, null, expression);
-// } else {
-// // promote the array reference to the suitable operation type
-// codeStream.generateImplicitConversion(implicitConversion);
-// // generate the increment value (will by itself be promoted to the operation value)
-// if (expression == IntLiteral.One) { // prefix operation
-// codeStream.generateConstant(expression.constant, implicitConversion);
-// } else {
-// expression.generateCode(currentScope, codeStream, true);
-// }
-// // perform the operation
-// codeStream.sendOperator(operator, operationTypeID);
-// // cast the value back to the array reference type
-// codeStream.generateImplicitConversion(assignmentImplicitConversion);
-// }
-// codeStream.arrayAtPut(this.resolvedType.id, valueRequired);
-// }
-//
-// public void generatePostIncrement(
-// BlockScope currentScope,
-// CodeStream codeStream,
-// CompoundAssignment postIncrement,
-// boolean valueRequired) {
-//
-// receiver.generateCode(currentScope, codeStream, true);
-// position.generateCode(currentScope, codeStream, true);
-// codeStream.dup2();
-// codeStream.arrayAt(this.resolvedType.id);
-// if (valueRequired) {
-// if ((this.resolvedType == LongBinding)
-// || (this.resolvedType == DoubleBinding)) {
-// codeStream.dup2_x2();
-// } else {
-// codeStream.dup_x2();
-// }
-// }
-// codeStream.generateConstant(
-// postIncrement.expression.constant,
-// implicitConversion);
-// codeStream.sendOperator(postIncrement.operator, this.resolvedType.id);
-// codeStream.generateImplicitConversion(
-// postIncrement.assignmentImplicitConversion);
-// codeStream.arrayAtPut(this.resolvedType.id, false);
-// }
- public StringBuffer printExpression(int indent, StringBuffer output) {
-
- receiver.printExpression(0, output).append('[');
- return position.printExpression(0, output).append(']');
- }
-
- public TypeBinding resolveType(BlockScope scope) {
-
- constant = Constant.NotAConstant;
- TypeBinding arrayType = receiver.resolveType(scope);
- if (arrayType != null) {
- if (arrayType.isArrayType()) {
- this.resolvedType = ((ArrayBinding) arrayType).elementsType(scope);
- } else {
- scope.problemReporter().referenceMustBeArrayTypeAt(arrayType, this);
- }
- }
- TypeBinding positionType = position.resolveTypeExpecting(scope, IntBinding);
- if (positionType != null) {
- position.implicitWidening(IntBinding, positionType);
- }
- return this.resolvedType;
- }
-
- public String toStringExpression() {
-
- return receiver.toStringExpression() + "[" //$NON-NLS-1$
- +position.toStringExpression() + "]"; //$NON-NLS-1$
- }
-
- public void traverse(ASTVisitor visitor, BlockScope scope) {
-
- if (visitor.visit(this, scope)) {
- receiver.traverse(visitor, scope);
- position.traverse(visitor, scope);
- }
- visitor.endVisit(this, scope);
- }
-}
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