/*
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.flex.compiler.internal.tree.mxml;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;
import org.apache.flex.compiler.common.ISourceLocation;
import org.apache.flex.compiler.common.SourceLocation;
import org.apache.flex.compiler.constants.IASLanguageConstants;
import org.apache.flex.compiler.definitions.IClassDefinition;
import org.apache.flex.compiler.definitions.IDefinition;
import org.apache.flex.compiler.definitions.ITypeDefinition;
import org.apache.flex.compiler.definitions.IVariableDefinition;
import org.apache.flex.compiler.internal.definitions.ClassDefinition;
import org.apache.flex.compiler.internal.mxml.MXMLDialect.TextParsingFlags;
import org.apache.flex.compiler.internal.parsing.ISourceFragment;
import org.apache.flex.compiler.internal.parsing.SourceFragmentsReader;
import org.apache.flex.compiler.internal.projects.FlexProject;
import org.apache.flex.compiler.internal.tree.as.NodeBase;
import org.apache.flex.compiler.mxml.IMXMLTagData;
import org.apache.flex.compiler.mxml.IMXMLTextData;
import org.apache.flex.compiler.mxml.IMXMLUnitData;
import org.apache.flex.compiler.problems.ICompilerProblem;
import org.apache.flex.compiler.problems.MXMLIncompatibleArrayElementProblem;
import org.apache.flex.compiler.problems.MXMLUnexpectedTagProblem;
import org.apache.flex.compiler.problems.MXMLUnresolvedTagProblem;
import org.apache.flex.compiler.tree.ASTNodeID;
import org.apache.flex.compiler.tree.mxml.IMXMLArrayNode;
import org.apache.flex.compiler.tree.mxml.IMXMLNode;
import org.apache.flex.compiler.tree.mxml.IMXMLPropertySpecifierNode;
/**
* This AST node represents an MXML <Array> tag.
*/
class MXMLArrayNode extends MXMLInstanceNode implements IMXMLArrayNode
{
protected static final EnumSet<TextParsingFlags> FLAGS = EnumSet.of(
TextParsingFlags.ALLOW_BINDING,
TextParsingFlags.ALLOW_COMPILER_DIRECTIVE);
/**
* Constructor.
*
* @param parent The parent node of this node, or <code>null</code> if there
* is no parent.
*/
MXMLArrayNode(NodeBase parent)
{
super(parent);
}
/**
* Caches the name of the property being set, if this array node is the
* value of a property node.
*/
private String propertyName;
/**
* Caches the type specified by [ArrayElementType] metadata in the case that
* this array node is the value of a property node.
*/
private String arrayElementType;
@Override
public ASTNodeID getNodeID()
{
return ASTNodeID.MXMLArrayID;
}
@Override
public String getName()
{
return IASLanguageConstants.Array;
}
@Override
protected final void initializeFromTag(MXMLTreeBuilder builder,
IMXMLTagData tag)
{
// If this array node is the value of a property node,
// cache the propertName and type specified by [ArrayElementType]
// metadata on the property, so that we can report problems
// with incompatible elements.
IMXMLNode parent = (IMXMLNode)getParent();
if (parent instanceof IMXMLPropertySpecifierNode)
{
propertyName = ((IMXMLPropertySpecifierNode)parent).getName();
IVariableDefinition propertyDefinition =
(IVariableDefinition)((IMXMLPropertySpecifierNode)parent).getDefinition();
// propertyDefinition will be null in the case of a property of an <Object> tag
FlexProject project = builder.getProject();
arrayElementType = propertyDefinition != null ?
propertyDefinition.getArrayElementType(project) :
IASLanguageConstants.Object;
}
super.initializeFromTag(builder, tag);
}
@Override
protected void processChildTag(MXMLTreeBuilder builder, IMXMLTagData tag,
IMXMLTagData childTag,
MXMLNodeInfo info)
{
// Process fragments gathered since the last child tag.
processFragments(builder, info);
// report problem to keep script tags out of array tags
if (builder.getFileScope().isScriptTag(childTag))
{
builder.addProblem(new MXMLUnexpectedTagProblem(childTag));
return;
}
// report problem if it isn't an instance
FlexProject project = builder.getProject();
String tagName = builder.getFileScope().resolveTagToQualifiedName(childTag);
if (tagName == null)
{
builder.addProblem(new MXMLUnresolvedTagProblem(childTag));
return;
}
IDefinition definition = project.getScope().findDefinitionByName(tagName);
if (definition instanceof ClassDefinition)
{
MXMLInstanceNode instanceNode =
MXMLInstanceNode.createInstanceNode(builder, tagName, this);
instanceNode.setClassReference(project, (ClassDefinition)definition); // TODO Move this logic to initializeFromTag().
instanceNode.initializeFromTag(builder, childTag);
info.addChildNode(instanceNode);
// Report problem if actual type of array element is incompatible with
// the [ArrayElementType] of the property of type Array that's being set.
if (arrayElementType != null)
{
if (!((ClassDefinition)definition).isInstanceOf(arrayElementType, project))
{
ICompilerProblem problem = new MXMLIncompatibleArrayElementProblem(
childTag, propertyName, arrayElementType, definition.getQualifiedName());
builder.addProblem(problem);
}
}
}
}
@Override
protected void processChildWhitespaceUnit(MXMLTreeBuilder builder, IMXMLTagData tag,
IMXMLTextData text,
MXMLNodeInfo info)
{
accumulateTextFragments(builder, text, info);
}
@Override
protected void processChildNonWhitespaceUnit(MXMLTreeBuilder builder, IMXMLTagData tag,
IMXMLTextData text,
MXMLNodeInfo info)
{
accumulateTextFragments(builder, text, info);
}
@Override
protected void initializationComplete(MXMLTreeBuilder builder, IMXMLTagData tag,
MXMLNodeInfo info)
{
// Process fragments gathered since the last child tag.
processFragments(builder, info);
setChildren(info.getChildNodeList().toArray(new MXMLInstanceNode[0]));
}
private void processFragments(MXMLTreeBuilder builder, MXMLNodeInfo info)
{
ISourceFragment[] fragments = info.getSourceFragments();
String text = SourceFragmentsReader.concatLogicalText(fragments);
if (!builder.getMXMLDialect().isWhitespace(text))
{
ITypeDefinition type = builder.getBuiltinType(IASLanguageConstants.ANY_TYPE);
SourceLocation location = info.getSourceLocation();
MXMLClassDefinitionNode classNode =
(MXMLClassDefinitionNode)getClassDefinitionNode();
MXMLInstanceNode instanceNode =
builder.createInstanceNode(this, type, fragments, location, FLAGS, classNode);
info.addChildNode(instanceNode);
}
info.clearFragments();
}
void initializeDefaultProperty(MXMLTreeBuilder builder, IVariableDefinition defaultPropertyDefinition,
List<IMXMLUnitData> contentUnits)
{
FlexProject project = builder.getProject();
// Set the location of the implicit array node
// to span the tags that specify the default property value.
setLocation(builder, contentUnits);
setClassReference(project, IASLanguageConstants.Array);
List<IMXMLNode> children = new ArrayList<IMXMLNode>();
for (IMXMLUnitData unit : contentUnits)
{
if (unit instanceof IMXMLTagData)
{
IMXMLTagData tag = (IMXMLTagData)unit;
// While it is normally illegal to put
// script tags in an array, a default property
// tag sequence can contain script nodes which need
// to be children of the implicit array node to
// keep the tree in file offset order.
// See: http://bugs.adobe.com/jira/browse/CMP-955
if (builder.getFileScope().isScriptTag(tag))
{
MXMLScriptNode scriptNode = new MXMLScriptNode(this);
scriptNode.initializeFromTag(builder, tag);
children.add(scriptNode);
}
else
{
IDefinition definition = builder.getFileScope().resolveTagToDefinition(tag);
if (definition instanceof IClassDefinition)
{
MXMLInstanceNode childNode = MXMLInstanceNode.createInstanceNode(
builder, definition.getQualifiedName(), this);
childNode.setClassReference(project, (ClassDefinition)definition); // TODO Move this logic to initializeFromTag().
childNode.initializeFromTag(builder, tag);
children.add(childNode);
}
}
}
}
setChildren(children.toArray(new IMXMLNode[0]));
}
public void initialize(MXMLTreeBuilder builder, ISourceLocation location,
List<?> value)
{
setLocation(location);
setClassReference(builder.getProject(), IASLanguageConstants.Array);
List<IMXMLNode> childList = new ArrayList<IMXMLNode>();
for (Object element : value)
{
if (element instanceof Boolean)
{
MXMLBooleanNode booleanNode = new MXMLBooleanNode(this);
MXMLLiteralNode literalNode = new MXMLLiteralNode(booleanNode, element);
literalNode.setLocation(location);
booleanNode.initialize(builder, location, IASLanguageConstants.Boolean, literalNode);
childList.add(booleanNode);
}
else if (element instanceof Integer)
{
MXMLIntNode intNode = new MXMLIntNode(this);
MXMLLiteralNode literalNode = new MXMLLiteralNode(intNode, element);
literalNode.setLocation(location);
intNode.initialize(builder, location, IASLanguageConstants._int, literalNode);
childList.add(intNode);
}
else if (element instanceof Long)
{
MXMLUintNode uintNode = new MXMLUintNode(this);
MXMLLiteralNode literalNode = new MXMLLiteralNode(uintNode, element);
literalNode.setLocation(location);
uintNode.initialize(builder, location, IASLanguageConstants.uint, literalNode);
childList.add(uintNode);
}
else if (element instanceof Number)
{
MXMLNumberNode numberNode = new MXMLNumberNode(this);
MXMLLiteralNode literalNode = new MXMLLiteralNode(numberNode, element);
literalNode.setLocation(location);
numberNode.initialize(builder, location, IASLanguageConstants.Number, literalNode);
childList.add(numberNode);
}
else if (element instanceof String)
{
MXMLStringNode stringNode = new MXMLStringNode(this);
MXMLLiteralNode literalNode = new MXMLLiteralNode(stringNode, element);
literalNode.setLocation(location);
stringNode.initialize(builder, location, IASLanguageConstants.String, literalNode);
childList.add(stringNode);
}
}
setChildren(childList.toArray(new IMXMLNode[0]));
}
}