/*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
+ * 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 v0.5
+ * 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-v05.html
+ * http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
- ******************************************************************************/
+ *******************************************************************************/
package net.sourceforge.phpdt.internal.compiler.ast;
-import net.sourceforge.phpdt.internal.compiler.IAbstractSyntaxTreeVisitor;
-import net.sourceforge.phpdt.internal.compiler.codegen.CodeStream;
+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.TypeBinding;
public class ArrayReference extends Reference {
-
+
public Expression receiver;
- public Expression position;
- public TypeBinding arrayElementBinding;
+ public Expression position;
public ArrayReference(Expression rec, Expression pos) {
this.receiver = rec;
sourceStart = rec.sourceStart;
}
- public FlowInfo analyseAssignment(
- BlockScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo,
- Assignment assignment,
- boolean compoundAssignment) {
+ public FlowInfo analyseAssignment(BlockScope currentScope,
+ FlowContext flowContext, FlowInfo flowInfo, Assignment assignment,
+ boolean compoundAssignment) {
if (assignment.expression == null) {
- return analyseCode(currentScope, flowContext, flowInfo).unconditionalInits();
+ return analyseCode(currentScope, flowContext, flowInfo)
+ .unconditionalInits();
} else {
- return assignment
- .expression
- .analyseCode(
+ return assignment.expression.analyseCode(
currentScope,
flowContext,
- analyseCode(currentScope, flowContext, flowInfo).unconditionalInits())
- .unconditionalInits();
+ analyseCode(currentScope, flowContext, flowInfo)
+ .unconditionalInits()).unconditionalInits();
}
}
- public FlowInfo analyseCode(
- BlockScope currentScope,
- FlowContext flowContext,
- FlowInfo flowInfo) {
+ public FlowInfo analyseCode(BlockScope currentScope,
+ FlowContext flowContext, FlowInfo flowInfo) {
- return position.analyseCode(
- currentScope,
- flowContext,
- receiver.analyseCode(currentScope, flowContext, 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(arrayElementBinding.id, valueRequired);
- if (valueRequired) {
- codeStream.generateImplicitConversion(assignment.implicitConversion);
- }
- }
+ // 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(arrayElementBinding.id);
- // Generating code for the potential runtime type checking
- if (valueRequired) {
- codeStream.generateImplicitConversion(implicitConversion);
- } else {
- if (arrayElementBinding == LongBinding
- || arrayElementBinding == DoubleBinding) {
- codeStream.pop2();
- } else {
- codeStream.pop();
- }
- }
- codeStream.recordPositionsFrom(pc, this.sourceStart);
+ // 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 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(arrayElementBinding.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(arrayElementBinding.id, valueRequired);
- }
+ public TypeBinding resolveType(BlockScope scope) {
- 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(arrayElementBinding.id);
- if (valueRequired) {
- if ((arrayElementBinding == LongBinding)
- || (arrayElementBinding == DoubleBinding)) {
- codeStream.dup2_x2();
+ constant = Constant.NotAConstant;
+ TypeBinding arrayType = receiver.resolveType(scope);
+ if (arrayType != null) {
+ if (arrayType.isArrayType()) {
+ this.resolvedType = ((ArrayBinding) arrayType)
+ .elementsType(scope);
} else {
- codeStream.dup_x2();
+ scope.problemReporter().referenceMustBeArrayTypeAt(arrayType,
+ this);
}
}
- codeStream.generateConstant(
- postIncrement.expression.constant,
- implicitConversion);
- codeStream.sendOperator(postIncrement.operator, arrayElementBinding.id);
- codeStream.generateImplicitConversion(
- postIncrement.assignmentImplicitConversion);
- codeStream.arrayAtPut(arrayElementBinding.id, false);
- }
-
- public TypeBinding resolveType(BlockScope scope) {
-
- constant = Constant.NotAConstant;
- TypeBinding arrayTb = receiver.resolveType(scope);
- if (arrayTb == null)
- return null;
- if (!arrayTb.isArrayType()) {
- scope.problemReporter().referenceMustBeArrayTypeAt(arrayTb, this);
- return null;
+ TypeBinding positionType = position.resolveTypeExpecting(scope,
+ IntBinding);
+ if (positionType != null) {
+ position.implicitWidening(IntBinding, positionType);
}
- TypeBinding positionTb = position.resolveTypeExpecting(scope, IntBinding);
- if (positionTb == null)
- return null;
- position.implicitWidening(IntBinding, positionTb);
- return arrayElementBinding = ((ArrayBinding) arrayTb).elementsType(scope);
+ return this.resolvedType;
}
public String toStringExpression() {
return receiver.toStringExpression() + "[" //$NON-NLS-1$
- +position.toStringExpression() + "]"; //$NON-NLS-1$
- }
+ + position.toStringExpression() + "]"; //$NON-NLS-1$
+ }
+
+ public void traverse(ASTVisitor visitor, BlockScope scope) {
- public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
-
if (visitor.visit(this, scope)) {
receiver.traverse(visitor, scope);
position.traverse(visitor, scope);
}
visitor.endVisit(this, scope);
}
-}
\ No newline at end of file
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff