/*
*
* 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.codegen.js.jx;
import org.apache.flex.compiler.codegen.ISubEmitter;
import org.apache.flex.compiler.codegen.js.IJSEmitter;
import org.apache.flex.compiler.codegen.js.goog.IJSGoogDocEmitter;
import org.apache.flex.compiler.common.ASModifier;
import org.apache.flex.compiler.common.ModifiersSet;
import org.apache.flex.compiler.definitions.IDefinition;
import org.apache.flex.compiler.definitions.IVariableDefinition;
import org.apache.flex.compiler.internal.codegen.as.ASEmitterTokens;
import org.apache.flex.compiler.internal.codegen.js.JSEmitterTokens;
import org.apache.flex.compiler.internal.codegen.js.JSSessionModel.BindableVarInfo;
import org.apache.flex.compiler.internal.codegen.js.JSSubEmitter;
import org.apache.flex.compiler.internal.codegen.js.utils.EmitterUtils;
import org.apache.flex.compiler.internal.tree.as.ChainedVariableNode;
import org.apache.flex.compiler.tree.ASTNodeID;
import org.apache.flex.compiler.tree.as.IASNode;
import org.apache.flex.compiler.tree.as.IExpressionNode;
import org.apache.flex.compiler.tree.as.IVariableNode;
import org.apache.flex.compiler.tree.metadata.IMetaTagNode;
import org.apache.flex.compiler.tree.metadata.IMetaTagsNode;
public class FieldEmitter extends JSSubEmitter implements
ISubEmitter<IVariableNode>
{
public FieldEmitter(IJSEmitter emitter)
{
super(emitter);
}
public boolean hasComplexStaticInitializers = false;
@Override
public void emit(IVariableNode node)
{
IDefinition definition = EmitterUtils.getClassDefinition(node);
IDefinition def = null;
IExpressionNode enode = node.getVariableTypeNode();//getAssignedValueNode();
if (enode != null)
{
def = enode.resolveType(getProject());
}
// TODO (mschmalle)
if (getEmitter().getDocEmitter() instanceof IJSGoogDocEmitter)
{
((IJSGoogDocEmitter) getEmitter().getDocEmitter()).emitFieldDoc(node, def, getProject());
}
IDefinition ndef = node.getDefinition();
String className = null;
String root = "";
IVariableDefinition.VariableClassification classification = node.getVariableClassification();
boolean isPackageOrFileMember = classification == IVariableDefinition.VariableClassification.PACKAGE_MEMBER ||
classification == IVariableDefinition.VariableClassification.FILE_MEMBER;
if (isPackageOrFileMember)
{
className = getEmitter().formatQualifiedName(node.getQualifiedName());
write(className);
}
else
{
ModifiersSet modifierSet = ndef.getModifiers();
if (modifierSet != null && !modifierSet.hasModifier(ASModifier.STATIC))
{
root = JSEmitterTokens.PROTOTYPE.getToken();
root += ASEmitterTokens.MEMBER_ACCESS.getToken();
}
if (definition == null)
definition = ndef.getContainingScope().getDefinition();
startMapping(node.getNameExpressionNode());
className = getEmitter().formatQualifiedName(definition.getQualifiedName());
write(className
+ ASEmitterTokens.MEMBER_ACCESS.getToken() + root);
write(node.getName());
endMapping(node.getNameExpressionNode());
}
if (node.getNodeID() == ASTNodeID.BindableVariableID && !node.isConst())
{
// add an underscore to convert this var to be the
// backing var for the get/set pair that will be generated later.
write("_");
}
IExpressionNode vnode = node.getAssignedValueNode();
if (vnode != null)
{
String vnodeString = getEmitter().stringifyNode(vnode);
if ((ndef.isStatic() && !EmitterUtils.needsStaticInitializer(vnodeString, className)) ||
(!ndef.isStatic() && EmitterUtils.isScalar(vnode)) ||
isPackageOrFileMember)
{
IExpressionNode beforeNode = node.getVariableTypeNode();
if (beforeNode.getAbsoluteStart() == -1)
{
beforeNode = node.getNameExpressionNode();
}
startMapping(node, beforeNode);
write(ASEmitterTokens.SPACE);
writeToken(ASEmitterTokens.EQUAL);
endMapping(node);
startMapping(vnode);
write(vnodeString);
endMapping(vnode);
}
else if (ndef.isStatic() && EmitterUtils.needsStaticInitializer(vnodeString, className))
{
hasComplexStaticInitializers = true;
}
}
if (vnode == null && def != null)
{
String defName = def.getQualifiedName();
if (defName.equals("int") || defName.equals("uint"))
{
write(ASEmitterTokens.SPACE);
writeToken(ASEmitterTokens.EQUAL);
write("0");
}
}
if (!(node instanceof ChainedVariableNode))
{
int len = node.getChildCount();
for (int i = 0; i < len; i++)
{
IASNode child = node.getChild(i);
if (child instanceof ChainedVariableNode)
{
writeNewline(ASEmitterTokens.SEMICOLON);
writeNewline();
getEmitter().emitField((IVariableNode) child);
}
}
}
if (node.getNodeID() == ASTNodeID.BindableVariableID && !node.isConst())
{
if (getModel().getBindableVars().get(node.getName()) == null) {
BindableVarInfo bindableVarInfo = new BindableVarInfo();
bindableVarInfo.isStatic = node.hasModifier(ASModifier.STATIC);;
bindableVarInfo.namespace = node.getNamespace();
bindableVarInfo.type = def.getQualifiedName();
getModel().getBindableVars().put(node.getName(), bindableVarInfo);
IMetaTagsNode metaTags = node.getMetaTags();
if (metaTags != null) {
IMetaTagNode[] tags = metaTags.getAllTags();
if (tags.length > 0)
bindableVarInfo.metaTags = tags;
}
}
}
}
public boolean emitFieldInitializer(IVariableNode node)
{
IDefinition definition = EmitterUtils.getClassDefinition(node);
IDefinition ndef = node.getDefinition();
String className = null;
IVariableDefinition.VariableClassification classification = node.getVariableClassification();
boolean isPackageOrFileMember = classification == IVariableDefinition.VariableClassification.PACKAGE_MEMBER ||
classification == IVariableDefinition.VariableClassification.FILE_MEMBER;
IExpressionNode vnode = node.getAssignedValueNode();
if (vnode != null)
{
String vnodeString = getEmitter().stringifyNode(vnode);
if (definition == null)
definition = ndef.getContainingScope().getDefinition();
className = getEmitter().formatQualifiedName(definition.getQualifiedName());
if (ndef.isStatic() && EmitterUtils.needsStaticInitializer(vnodeString, className) && !isPackageOrFileMember)
{
writeNewline();
write(className
+ ASEmitterTokens.MEMBER_ACCESS.getToken());
write(node.getName());
if (node.getNodeID() == ASTNodeID.BindableVariableID && !node.isConst())
{
// add an underscore to convert this var to be the
// backing var for the get/set pair that will be generated later.
write("_");
}
write(ASEmitterTokens.SPACE);
writeToken(ASEmitterTokens.EQUAL);
write(vnodeString);
write(ASEmitterTokens.SEMICOLON);
return true;
}
}
return false;
}
}