-/*******************************************************************************
- * 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
+/***********************************************************************************************************************************
+ * 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
- ******************************************************************************/
+ * 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.NullConstant;
import net.sourceforge.phpdt.internal.compiler.lookup.ArrayBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.BaseTypeBinding;
import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
import net.sourceforge.phpdt.internal.compiler.lookup.TypeBinding;
public class ArrayInitializer extends Expression {
- public Expression[] expressions;
- public ArrayBinding binding; //the type of the { , , , }
+ public Expression[] expressions;
-/**
- * ArrayInitializer constructor comment.
- */
-public ArrayInitializer() {
- super();
-}
-public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
- if (expressions != null) {
- for (int i = 0, max = expressions.length; i < max; i++) {
- flowInfo = expressions[i].analyseCode(currentScope, flowContext, flowInfo).unconditionalInits();
- }
- }
- return flowInfo;
-}
-/**
- * Code generation for a array initializer
- */
-public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) {
- // Flatten the values and compute the dimensions, by iterating in depth into nested array initializers
+ public ArrayBinding binding; //the type of the { , , , }
- int pc = codeStream.position;
- int expressionLength = (expressions == null) ? 0: expressions.length;
- codeStream.generateInlinedValue(expressionLength);
- codeStream.newArray(currentScope, binding);
- if (expressions != null) {
- // binding is an ArrayType, so I can just deal with the dimension
- int elementsTypeID = binding.dimensions > 1 ? -1 : binding.leafComponentType.id;
- for (int i = 0; i < expressionLength; i++) {
- Expression expr;
- if ((expr = expressions[i]).constant != NotAConstant) {
- switch (elementsTypeID) { // filter out initializations to default values
- case T_int :
- case T_short :
- case T_byte :
- case T_char :
- case T_float :
- case T_long :
- case T_double :
- if (expr.constant.doubleValue() != 0) {
- codeStream.dup();
- codeStream.generateInlinedValue(i);
- expr.generateCode(currentScope, codeStream, true);
- codeStream.arrayAtPut(elementsTypeID, false);
- }
- break;
- case T_boolean :
- if (expr.constant.booleanValue() != false) {
- codeStream.dup();
- codeStream.generateInlinedValue(i);
- expr.generateCode(currentScope, codeStream, true);
- codeStream.arrayAtPut(elementsTypeID, false);
- }
- break;
- default :
- if (expr.constant != NullConstant.Default) {
- codeStream.dup();
- codeStream.generateInlinedValue(i);
- expr.generateCode(currentScope, codeStream, true);
- codeStream.arrayAtPut(elementsTypeID, false);
- }
- }
- } else {
- codeStream.dup();
- codeStream.generateInlinedValue(i);
- expr.generateCode(currentScope, codeStream, true);
- codeStream.arrayAtPut(elementsTypeID, false);
- }
- }
- }
- if (!valueRequired) {
- codeStream.pop();
- }
- codeStream.recordPositionsFrom(pc, this.sourceStart);
-}
-public TypeBinding resolveTypeExpecting(BlockScope scope, TypeBinding expectedTb) {
- // Array initializers can only occur on the right hand side of an assignment
- // expression, therefore the expected type contains the valid information
- // concerning the type that must be enforced by the elements of the array initializer.
+ /**
+ * ArrayInitializer constructor comment.
+ */
+ public ArrayInitializer() {
+ super();
+ }
- // this method is recursive... (the test on isArrayType is the stop case)
+ public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
+ if (expressions != null) {
+ for (int i = 0, max = expressions.length; i < max; i++) {
+ flowInfo = expressions[i].analyseCode(currentScope, flowContext, flowInfo).unconditionalInits();
+ }
+ }
+ return flowInfo;
+ }
- constant = NotAConstant;
- if (expectedTb.isArrayType()) {
- binding = (ArrayBinding) expectedTb;
- if (expressions == null)
- return binding;
- TypeBinding expectedElementsTb = binding.elementsType(scope);
- if (expectedElementsTb.isBaseType()) {
- for (int i = 0, length = expressions.length; i < length; i++) {
- Expression expression = expressions[i];
- TypeBinding expressionTb =
- (expression instanceof ArrayInitializer)
- ? expression.resolveTypeExpecting(scope, expectedElementsTb)
- : expression.resolveType(scope);
- if (expressionTb == null)
- return null;
+ /**
+ * Code generation for a array initializer
+ */
+ //public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) {
+ // // Flatten the values and compute the dimensions, by iterating in depth into nested array initializers
+ //
+ // int pc = codeStream.position;
+ // int expressionLength = (expressions == null) ? 0: expressions.length;
+ // codeStream.generateInlinedValue(expressionLength);
+ // codeStream.newArray(currentScope, binding);
+ // if (expressions != null) {
+ // // binding is an ArrayType, so I can just deal with the dimension
+ // int elementsTypeID = binding.dimensions > 1 ? -1 : binding.leafComponentType.id;
+ // for (int i = 0; i < expressionLength; i++) {
+ // Expression expr;
+ // if ((expr = expressions[i]).constant != NotAConstant) {
+ // switch (elementsTypeID) { // filter out initializations to default values
+ // case T_int :
+ // case T_short :
+ // case T_byte :
+ // case T_char :
+ // case T_long :
+ // if (expr.constant.longValue() != 0) {
+ // codeStream.dup();
+ // codeStream.generateInlinedValue(i);
+ // expr.generateCode(currentScope, codeStream, true);
+ // codeStream.arrayAtPut(elementsTypeID, false);
+ // }
+ // break;
+ // case T_float :
+ // case T_double :
+ // double constantValue = expr.constant.doubleValue();
+ // if (constantValue == -0.0 || constantValue != 0) {
+ // codeStream.dup();
+ // codeStream.generateInlinedValue(i);
+ // expr.generateCode(currentScope, codeStream, true);
+ // codeStream.arrayAtPut(elementsTypeID, false);
+ // }
+ // break;
+ // case T_boolean :
+ // if (expr.constant.booleanValue() != false) {
+ // codeStream.dup();
+ // codeStream.generateInlinedValue(i);
+ // expr.generateCode(currentScope, codeStream, true);
+ // codeStream.arrayAtPut(elementsTypeID, false);
+ // }
+ // break;
+ // default :
+ // if (!(expr instanceof NullLiteral)) {
+ // codeStream.dup();
+ // codeStream.generateInlinedValue(i);
+ // expr.generateCode(currentScope, codeStream, true);
+ // codeStream.arrayAtPut(elementsTypeID, false);
+ // }
+ // }
+ // } else if (!(expr instanceof NullLiteral)) {
+ // codeStream.dup();
+ // codeStream.generateInlinedValue(i);
+ // expr.generateCode(currentScope, codeStream, true);
+ // codeStream.arrayAtPut(elementsTypeID, false);
+ // }
+ // }
+ // }
+ // if (!valueRequired) {
+ // codeStream.pop();
+ // }
+ // codeStream.recordPositionsFrom(pc, this.sourceStart);
+ //}
+ public StringBuffer printExpression(int indent, StringBuffer output) {
- // Compile-time conversion required?
- if (expression.isConstantValueOfTypeAssignableToType(expressionTb, expectedElementsTb)) {
- expression.implicitWidening(expectedElementsTb, expressionTb);
- } else if (BaseTypeBinding.isWidening(expectedElementsTb.id, expressionTb.id)) {
- expression.implicitWidening(expectedElementsTb, expressionTb);
- } else {
- scope.problemReporter().typeMismatchErrorActualTypeExpectedType(expression, expressionTb, expectedElementsTb);
- return null;
- }
- }
- } else {
- for (int i = 0, length = expressions.length; i < length; i++)
- if (expressions[i].resolveTypeExpecting(scope, expectedElementsTb) == null)
- return null;
- }
- return binding;
- }
-
- // infer initializer type for error reporting based on first element
- TypeBinding leafElementType = null;
- int dim = 1;
- if (expressions == null) {
- leafElementType = scope.getJavaLangObject();
- } else {
- Expression currentExpression = expressions[0];
- while(currentExpression != null && currentExpression instanceof ArrayInitializer) {
- dim++;
- Expression[] subExprs = ((ArrayInitializer) currentExpression).expressions;
- if (subExprs == null){
- leafElementType = scope.getJavaLangObject();
- currentExpression = null;
- break;
- }
- currentExpression = ((ArrayInitializer) currentExpression).expressions[0];
- }
- if (currentExpression != null) {
- leafElementType = currentExpression.resolveType(scope);
- }
- }
- if (leafElementType != null) {
- TypeBinding probableTb = scope.createArray(leafElementType, dim);
- scope.problemReporter().typeMismatchErrorActualTypeExpectedType(this, probableTb, expectedTb);
- }
- return null;
-}
-public String toStringExpression() {
+ output.append('{');
+ if (expressions != null) {
+ int j = 20;
+ for (int i = 0; i < expressions.length; i++) {
+ if (i > 0)
+ output.append(", "); //$NON-NLS-1$
+ expressions[i].printExpression(0, output);
+ j--;
+ if (j == 0) {
+ output.append('\n');
+ printIndent(indent + 1, output);
+ j = 20;
+ }
+ }
+ }
+ return output.append('}');
+ }
- String s = "{" ; //$NON-NLS-1$
- if (expressions != null)
- { int j = 20 ;
- for (int i = 0 ; i < expressions.length ; i++)
- { s = s + expressions[i].toStringExpression() + "," ; //$NON-NLS-1$
- j -- ;
- if (j == 0)
- { s = s + "\n "; j = 20;}}}; //$NON-NLS-1$
- s = s + "}"; //$NON-NLS-1$
- return s;}
+ public TypeBinding resolveTypeExpecting(BlockScope scope, TypeBinding expectedTb) {
+ // Array initializers can only occur on the right hand side of an assignment
+ // expression, therefore the expected type contains the valid information
+ // concerning the type that must be enforced by the elements of the array initializer.
-public void traverse(IAbstractSyntaxTreeVisitor visitor, BlockScope scope) {
- if (visitor.visit(this, scope)) {
- if (expressions != null) {
- int expressionsLength = expressions.length;
- for (int i = 0; i < expressionsLength; i++)
- expressions[i].traverse(visitor, scope);
- }
- }
- visitor.endVisit(this, scope);
-}
-}
+ // this method is recursive... (the test on isArrayType is the stop case)
+
+ constant = NotAConstant;
+ if (expectedTb.isArrayType()) {
+ binding = (ArrayBinding) expectedTb;
+ if (expressions == null)
+ return binding;
+ TypeBinding expectedElementsTb = binding.elementsType(scope);
+ if (expectedElementsTb.isBaseType()) {
+ for (int i = 0, length = expressions.length; i < length; i++) {
+ Expression expression = expressions[i];
+ TypeBinding expressionTb = (expression instanceof ArrayInitializer) ? expression.resolveTypeExpecting(scope,
+ expectedElementsTb) : expression.resolveType(scope);
+ if (expressionTb == null)
+ return null;
+
+ // Compile-time conversion required?
+ if (expression.isConstantValueOfTypeAssignableToType(expressionTb, expectedElementsTb)) {
+ expression.implicitWidening(expectedElementsTb, expressionTb);
+ } else if (BaseTypeBinding.isWidening(expectedElementsTb.id, expressionTb.id)) {
+ expression.implicitWidening(expectedElementsTb, expressionTb);
+ } else {
+ scope.problemReporter().typeMismatchErrorActualTypeExpectedType(expression, expressionTb, expectedElementsTb);
+ return null;
+ }
+ }
+ } else {
+ for (int i = 0, length = expressions.length; i < length; i++)
+ if (expressions[i].resolveTypeExpecting(scope, expectedElementsTb) == null)
+ return null;
+ }
+ return binding;
+ }
+
+ // infer initializer type for error reporting based on first element
+ TypeBinding leafElementType = null;
+ int dim = 1;
+ if (expressions == null) {
+ leafElementType = scope.getJavaLangObject();
+ } else {
+ Expression currentExpression = expressions[0];
+ while (currentExpression != null && currentExpression instanceof ArrayInitializer) {
+ dim++;
+ Expression[] subExprs = ((ArrayInitializer) currentExpression).expressions;
+ if (subExprs == null) {
+ leafElementType = scope.getJavaLangObject();
+ currentExpression = null;
+ break;
+ }
+ currentExpression = ((ArrayInitializer) currentExpression).expressions[0];
+ }
+ if (currentExpression != null) {
+ leafElementType = currentExpression.resolveType(scope);
+ }
+ }
+ if (leafElementType != null) {
+ TypeBinding probableTb = scope.createArray(leafElementType, dim);
+ scope.problemReporter().typeMismatchErrorActualTypeExpectedType(this, probableTb, expectedTb);
+ }
+ return null;
+ }
+
+ public String toStringExpression() {
+
+ String s = "{"; //$NON-NLS-1$
+ if (expressions != null) {
+ int j = 20;
+ for (int i = 0; i < expressions.length; i++) {
+ s = s + expressions[i].toStringExpression() + ","; //$NON-NLS-1$
+ j--;
+ if (j == 0) {
+ s = s + "\n ";j = 20;}}}; //$NON-NLS-1$
+ s = s + "}"; //$NON-NLS-1$
+ return s;
+ }
+
+ public void traverse(ASTVisitor visitor, BlockScope scope) {
+ if (visitor.visit(this, scope)) {
+ if (expressions != null) {
+ int expressionsLength = expressions.length;
+ for (int i = 0; i < expressionsLength; i++)
+ expressions[i].traverse(visitor, scope);
+ }
+ }
+ visitor.endVisit(this, scope);
+ }
+}
\ No newline at end of file
git://git.phpeclipse.com / phpeclipse.git / blobdiff