/*
*
* 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.constants.IASLanguageConstants;
import org.apache.flex.compiler.definitions.IDefinition;
import org.apache.flex.compiler.definitions.metadata.IMetaTag;
import org.apache.flex.compiler.definitions.metadata.IMetaTagAttribute;
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.JSSubEmitter;
import org.apache.flex.compiler.internal.codegen.js.flexjs.JSFlexJSDocEmitter;
import org.apache.flex.compiler.internal.codegen.js.flexjs.JSFlexJSEmitter;
import org.apache.flex.compiler.internal.codegen.js.flexjs.JSFlexJSEmitterTokens;
import org.apache.flex.compiler.internal.codegen.js.goog.JSGoogEmitterTokens;
import org.apache.flex.compiler.internal.definitions.AccessorDefinition;
import org.apache.flex.compiler.internal.tree.as.DynamicAccessNode;
import org.apache.flex.compiler.internal.tree.as.FunctionCallNode;
import org.apache.flex.compiler.internal.tree.as.IdentifierNode;
import org.apache.flex.compiler.internal.tree.as.MemberAccessExpressionNode;
import org.apache.flex.compiler.internal.tree.as.UnaryOperatorAtNode;
import org.apache.flex.compiler.problems.AssignToReadOnlyPropertyProblem;
import org.apache.flex.compiler.tree.ASTNodeID;
import org.apache.flex.compiler.tree.as.IASNode;
import org.apache.flex.compiler.tree.as.IBinaryOperatorNode;
import org.apache.flex.compiler.tree.as.IClassNode;
import org.apache.flex.compiler.tree.as.IExpressionNode;
import org.apache.flex.compiler.tree.as.IIdentifierNode;
import org.apache.flex.compiler.utils.ASNodeUtils;
public class BinaryOperatorEmitter extends JSSubEmitter implements
ISubEmitter<IBinaryOperatorNode>
{
public BinaryOperatorEmitter(IJSEmitter emitter)
{
super(emitter);
}
@Override
public void emit(IBinaryOperatorNode node)
{
// TODO (mschmalle) will remove this cast as more things get abstracted
JSFlexJSEmitter fjs = (JSFlexJSEmitter) getEmitter();
String op = node.getOperator().getOperatorText();
boolean isAssignment = op.contains("=")
&& !op.contains("==")
&& !(op.startsWith("<") || op.startsWith(">") || op
.startsWith("!"));
ASTNodeID id = node.getNodeID();
/*
if (id == ASTNodeID.Op_InID
|| id == ASTNodeID.Op_LogicalAndAssignID
|| id == ASTNodeID.Op_LogicalOrAssignID)
{
super.emitBinaryOperator(node);
}
else */if (id == ASTNodeID.Op_IsID || id == ASTNodeID.Op_AsID)
{
fjs.emitIsAs(node, node.getLeftOperandNode(), node.getRightOperandNode(),
id, false);
}
else if (id == ASTNodeID.Op_InstanceOfID)
{
getWalker().walk(node.getLeftOperandNode());
startMapping(node, node.getLeftOperandNode());
write(ASEmitterTokens.SPACE);
writeToken(ASEmitterTokens.INSTANCEOF);
endMapping(node);
IDefinition dnode = (node.getRightOperandNode())
.resolve(getProject());
if (dnode != null)
write(getEmitter()
.formatQualifiedName(dnode.getQualifiedName()));
else
getWalker().walk(node.getRightOperandNode());
}
else
{
IExpressionNode leftSide = node.getLeftOperandNode();
IDefinition leftDef = leftSide.resolveType(getWalker().getProject());
if (leftSide.getNodeID() == ASTNodeID.MemberAccessExpressionID)
{
IASNode lnode = leftSide.getChild(0);
IASNode rnode = leftSide.getChild(1);
IDefinition rnodeDef = (rnode instanceof IIdentifierNode) ?
((IIdentifierNode) rnode).resolve(getWalker().getProject()) :
null;
if (lnode.getNodeID() == ASTNodeID.SuperID
&& rnodeDef instanceof AccessorDefinition)
{
if (isAssignment)
{
IClassNode cnode = (IClassNode) node
.getAncestorOfType(IClassNode.class);
if (cnode != null)
write(getEmitter().formatQualifiedName(
cnode.getQualifiedName()));
else
write(getEmitter().formatQualifiedName(
getModel().getCurrentClass().getQualifiedName()));
write(ASEmitterTokens.MEMBER_ACCESS);
write(JSGoogEmitterTokens.SUPERCLASS);
write(ASEmitterTokens.MEMBER_ACCESS);
write(JSFlexJSEmitterTokens.SETTER_PREFIX);
write(rnodeDef.getBaseName());
write(ASEmitterTokens.MEMBER_ACCESS);
write(JSEmitterTokens.APPLY);
write(ASEmitterTokens.PAREN_OPEN);
write(ASEmitterTokens.THIS);
writeToken(ASEmitterTokens.COMMA);
writeToken(ASEmitterTokens.SQUARE_OPEN);
if (op.length() > 1) // += and things like that
{
write(getEmitter().formatQualifiedName(
cnode.getQualifiedName()));
write(ASEmitterTokens.MEMBER_ACCESS);
write(JSGoogEmitterTokens.SUPERCLASS);
write(ASEmitterTokens.MEMBER_ACCESS);
write(JSFlexJSEmitterTokens.GETTER_PREFIX);
write(rnodeDef.getBaseName());
write(ASEmitterTokens.MEMBER_ACCESS);
write(JSEmitterTokens.APPLY);
write(ASEmitterTokens.PAREN_OPEN);
write(ASEmitterTokens.THIS);
write(ASEmitterTokens.PAREN_CLOSE);
write(op.substring(0, 1));
}
getWalker().walk(node.getRightOperandNode());
writeToken(ASEmitterTokens.SQUARE_CLOSE);
write(ASEmitterTokens.PAREN_CLOSE);
return;
}
}
else if (((JSFlexJSEmitter)getEmitter()).isXMLList((MemberAccessExpressionNode)leftSide))
{
MemberAccessExpressionNode xmlNode = (MemberAccessExpressionNode)leftSide;
if (node.getNodeID() == ASTNodeID.Op_AssignId)
{
getWalker().walk(xmlNode.getLeftOperandNode());
IExpressionNode rightSide = xmlNode.getRightOperandNode();
if (rightSide instanceof UnaryOperatorAtNode)
{
write(".setAttribute('");
getWalker().walk(((UnaryOperatorAtNode)rightSide).getChild(0));
}
else
{
write(".setChild('");
getWalker().walk(rightSide);
}
write("', ");
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
return;
}
else if (node.getNodeID() == ASTNodeID.Op_AddAssignID)
{
getWalker().walk(xmlNode.getLeftOperandNode());
IExpressionNode rightSide = xmlNode.getRightOperandNode();
if (rightSide instanceof UnaryOperatorAtNode)
{
write(".setAttribute('");
getWalker().walk(((UnaryOperatorAtNode)rightSide).getChild(0));
}
else
{
write(".setChild('");
getWalker().walk(rightSide);
}
write("', ");
getWalker().walk(node.getLeftOperandNode());
write(".plus(");
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
write(ASEmitterTokens.PAREN_CLOSE);
return;
}
else if (node.getNodeID() == ASTNodeID.Op_AddID)
{
getWalker().walk(xmlNode);
write(".plus(");
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
return;
}
}
else if (((JSFlexJSEmitter)getEmitter()).isProxy((MemberAccessExpressionNode)leftSide))
{
MemberAccessExpressionNode proxyNode = (MemberAccessExpressionNode)leftSide;
if (node.getNodeID() == ASTNodeID.Op_AssignId)
{
getWalker().walk(proxyNode.getLeftOperandNode());
IExpressionNode rightSide = proxyNode.getRightOperandNode();
write(".setProperty('");
getWalker().walk(rightSide);
write("', ");
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
return;
}
else if (node.getNodeID() == ASTNodeID.Op_AddAssignID)
{
IExpressionNode rightSide = proxyNode.getRightOperandNode();
getWalker().walk(proxyNode.getLeftOperandNode());
write(".setProperty('");
getWalker().walk(rightSide);
write("', ");
getWalker().walk(proxyNode.getLeftOperandNode());
write(".getProperty(");
write(ASEmitterTokens.SINGLE_QUOTE);
getWalker().walk(rightSide);
write(ASEmitterTokens.SINGLE_QUOTE);
write(ASEmitterTokens.PAREN_CLOSE);
write(" + ");
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
return;
}
}
else if (((JSFlexJSEmitter)getEmitter()).isDateProperty((MemberAccessExpressionNode)leftSide))
{
specialCaseDate(node, (MemberAccessExpressionNode)leftSide);
return;
}
}
else if (leftSide.getNodeID() == ASTNodeID.IdentifierID)
{
if ((leftDef != null)
&& IdentifierNode.isXMLish(leftDef, getWalker().getProject()))
{
if (node.getNodeID() == ASTNodeID.Op_AddAssignID)
{
getWalker().walk(leftSide);
write(" = ");
getWalker().walk(leftSide);
write(".plus(");
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
return;
}
}
}
boolean leftIsNumber = (leftDef != null && (leftDef.getQualifiedName().equals(IASLanguageConstants.Number) ||
leftDef.getQualifiedName().equals(IASLanguageConstants._int) ||
leftDef.getQualifiedName().equals(IASLanguageConstants.uint)));
IExpressionNode rNode = node.getRightOperandNode();
IDefinition rightDef = rNode.resolveType(getWalker().getProject());
boolean rightIsNumber = (rightDef != null && (rightDef.getQualifiedName().equals(IASLanguageConstants.Number) ||
rightDef.getQualifiedName().equals(IASLanguageConstants._int) ||
rightDef.getQualifiedName().equals(IASLanguageConstants.uint)));
if (leftIsNumber && !rightIsNumber && (rightDef == null || rightDef.getQualifiedName().equals(IASLanguageConstants.ANY_TYPE)))
{
if (rNode.getNodeID() == ASTNodeID.FunctionCallID)
{
IExpressionNode fnNameNode = ((FunctionCallNode)rNode).getNameNode();
if (fnNameNode.getNodeID() == ASTNodeID.MemberAccessExpressionID)
{
MemberAccessExpressionNode mae = (MemberAccessExpressionNode)fnNameNode;
IExpressionNode rightNode = mae.getRightOperandNode();
rightIsNumber = rightNode.getNodeID() == ASTNodeID.IdentifierID &&
((IdentifierNode)rightNode).getName().equals("length") &&
fjs.isXMLList(mae);
}
}
else if (rNode.getNodeID() == ASTNodeID.ArrayIndexExpressionID)
{
DynamicAccessNode dyn = (DynamicAccessNode)rNode;
IDefinition lDef = dyn.getLeftOperandNode().resolveType(getProject());
IDefinition rDef = dyn.getRightOperandNode().resolveType(getProject());
// numeric indexing?
if (rDef.getQualifiedName().equals(IASLanguageConstants.Number))
{
IMetaTag[] metas = lDef.getAllMetaTags();
for (IMetaTag meta : metas)
{
if (meta.getTagName().equals("ArrayElementType"))
{
IMetaTagAttribute[] attrs = meta.getAllAttributes();
for (IMetaTagAttribute attr : attrs)
{
String t = attr.getValue();
if (t.equals(IASLanguageConstants.Number))
rightIsNumber = true;
}
}
}
}
}
}
String coercion = (leftIsNumber && !rightIsNumber && isAssignment) ? "Number(" : "";
if (isAssignment && leftDef != null && leftDef.getQualifiedName().equals(IASLanguageConstants.String))
{
if (rNode.getNodeID() != ASTNodeID.LiteralStringID &&
rNode.getNodeID() != ASTNodeID.LiteralNullID)
{
if (rightDef == null ||
(!(rightDef.getQualifiedName().equals(IASLanguageConstants.String) ||
(rightDef.getQualifiedName().equals(IASLanguageConstants.ANY_TYPE)
&& rNode.getNodeID() == ASTNodeID.FunctionCallID &&
isToString(rNode)) ||
// if not an assignment we don't need to coerce numbers
(!isAssignment && rightIsNumber) ||
rightDef.getQualifiedName().equals(IASLanguageConstants.Null))))
{
JSFlexJSDocEmitter docEmitter = (JSFlexJSDocEmitter)(getEmitter().getDocEmitter());
if (docEmitter.emitStringConversions)
{
coercion = "org.apache.flex.utils.Language.string(";
}
}
}
}
super_emitBinaryOperator(node, coercion);
if (coercion.length() > 0)
write(")");
/*
IExpressionNode leftSide = node.getLeftOperandNode();
IExpressionNode property = null;
int leftSideChildCount = leftSide.getChildCount();
if (leftSideChildCount > 0)
{
IASNode childNode = leftSide.getChild(leftSideChildCount - 1);
if (childNode instanceof IExpressionNode)
property = (IExpressionNode) childNode;
else
property = leftSide;
}
else
property = leftSide;
IDefinition def = null;
if (property instanceof IIdentifierNode)
def = ((IIdentifierNode) property).resolve(getWalker()
.getProject());
boolean isSuper = false;
if (leftSide.getNodeID() == ASTNodeID.MemberAccessExpressionID)
{
IASNode cnode = leftSide.getChild(0);
ASTNodeID cId = cnode.getNodeID();
isSuper = cId == ASTNodeID.SuperID;
}
String op = node.getOperator().getOperatorText();
boolean isAssignment = op.contains("=") && !op.contains("==") &&
!(op.startsWith("<") ||
op.startsWith(">") ||
op.startsWith("!"));
if (def instanceof AccessorDefinition && isAssignment)
{
// this will make the set_foo call
getWalker().walk(leftSide);
}
else if (isSuper)
{
emitSuperCall(node, "");
}
else
{
if (ASNodeUtils.hasParenOpen(node))
write(ASEmitterTokens.PAREN_OPEN);
getWalker().walk(leftSide);
if (node.getNodeID() != ASTNodeID.Op_CommaID)
write(ASEmitterTokens.SPACE);
writeToken(node.getOperator().getOperatorText());
getWalker().walk(node.getRightOperandNode());
if (ASNodeUtils.hasParenClose(node))
write(ASEmitterTokens.PAREN_CLOSE);
}
*/
}
}
private boolean isToString(IASNode rNode)
{
IExpressionNode fnNameNode = ((FunctionCallNode)rNode).getNameNode();
if (fnNameNode.getNodeID() == ASTNodeID.MemberAccessExpressionID)
{
MemberAccessExpressionNode mae = (MemberAccessExpressionNode)fnNameNode;
IExpressionNode rightNode = mae.getRightOperandNode();
return rightNode.getNodeID() == ASTNodeID.IdentifierID &&
((IdentifierNode)rightNode).getName().equals("toString");
}
return false;
}
private void super_emitBinaryOperator(IBinaryOperatorNode node, String coercion)
{
if (ASNodeUtils.hasParenOpen(node))
write(ASEmitterTokens.PAREN_OPEN);
ASTNodeID id = node.getNodeID();
if (id == ASTNodeID.Op_IsID)
{
write(ASEmitterTokens.IS);
write(ASEmitterTokens.PAREN_OPEN);
getWalker().walk(node.getLeftOperandNode());
writeToken(ASEmitterTokens.COMMA);
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
}
else if (id == ASTNodeID.Op_AsID)
{
// (is(a, b) ? a : null)
write(ASEmitterTokens.PAREN_OPEN);
write(ASEmitterTokens.IS);
write(ASEmitterTokens.PAREN_OPEN);
getWalker().walk(node.getLeftOperandNode());
writeToken(ASEmitterTokens.COMMA);
getWalker().walk(node.getRightOperandNode());
writeToken(ASEmitterTokens.PAREN_CLOSE);
writeToken(ASEmitterTokens.TERNARY);
getWalker().walk(node.getLeftOperandNode());
write(ASEmitterTokens.SPACE);
writeToken(ASEmitterTokens.COLON);
write(ASEmitterTokens.NULL);
write(ASEmitterTokens.PAREN_CLOSE);
}
else
{
getWalker().walk(node.getLeftOperandNode());
startMapping(node, node.getLeftOperandNode());
if (id != ASTNodeID.Op_CommaID)
write(ASEmitterTokens.SPACE);
// (erikdebruin) rewrite 'a &&= b' to 'a = a && b'
if (id == ASTNodeID.Op_LogicalAndAssignID
|| id == ASTNodeID.Op_LogicalOrAssignID)
{
IIdentifierNode lnode = (IIdentifierNode) node
.getLeftOperandNode();
writeToken(ASEmitterTokens.EQUAL);
endMapping(node);
startMapping(node);
write(lnode.getName());
endMapping(node);
startMapping(node, node.getLeftOperandNode());
write(ASEmitterTokens.SPACE);
write((id == ASTNodeID.Op_LogicalAndAssignID) ? ASEmitterTokens.LOGICAL_AND
: ASEmitterTokens.LOGICAL_OR);
}
else
{
write(node.getOperator().getOperatorText());
}
write(ASEmitterTokens.SPACE);
endMapping(node);
write(coercion);
/*
IDefinition definition = node.getRightOperandNode().resolve(getProject());
if (definition instanceof FunctionDefinition &&
(!(definition instanceof AccessorDefinition)))
{
}
else */
getWalker().walk(node.getRightOperandNode());
if (node.getNodeID() == ASTNodeID.Op_InID &&
((JSFlexJSEmitter)getEmitter()).isXML(node.getRightOperandNode()))
{
write(".elementNames()");
}
else if (node.getNodeID() == ASTNodeID.Op_InID &&
((JSFlexJSEmitter)getEmitter()).isProxy(node.getRightOperandNode()))
{
write(".propertyNames()");
}
}
if (ASNodeUtils.hasParenOpen(node))
write(ASEmitterTokens.PAREN_CLOSE);
}
public static enum DatePropertiesGetters
{
TIME("time", "getTime"),
FULLYEAR("fullYear", "getFullYear"),
MONTH("month", "getMonth"),
DATE("date", "getDate"),
FULLYEARUTC("fullYearUTC", "getUTCFullYear"),
MONTHUTC("monthUTC", "getUTCMonth"),
DATEUTC("dateUTC", "getUTCDate"),
HOURS("hours", "getHours"),
MINUTES("minutes", "getMinutes"),
SECONDS("seconds", "getSeconds"),
MILLISECONDS("milliseconds", "getMilliseconds"),
HOURSUTC("hoursUTC", "getUTCHours"),
MINUTESUTC("minutesUTC", "getUTCMinutes"),
SECONDSUTC("secondsUTC", "getUTCSeconds"),
MILLISECONDSUTC("millisecondsUTC", "getUTCMilliseconds");
DatePropertiesGetters(String value, String functionName)
{
this.value = value;
this.functionName = functionName;
}
private String value;
private String functionName;
public String getFunctionName()
{
return functionName;
}
}
public static enum DatePropertiesSetters
{
TIME("time", "setTime"),
FULLYEAR("fullYear", "setFullYear"),
MONTH("month", "setMonth"),
DATE("date", "setDate"),
FULLYEARUTC("fullYearUTC", "setUTCFullYear"),
MONTHUTC("monthUTC", "setUTCMonth"),
DATEUTC("dateUTC", "setUTCDate"),
HOURS("hours", "setHours"),
MINUTES("minutes", "setMinutes"),
SECONDS("seconds", "setSeconds"),
MILLISECONDS("milliseconds", "setMilliseconds"),
HOURSUTC("hoursUTC", "setUTCHours"),
MINUTESUTC("minutesUTC", "setUTCMinutes"),
SECONDSUTC("secondsUTC", "setUTCSeconds"),
MILLISECONDSUTC("millisecondsUTC", "setUTCMilliseconds");
DatePropertiesSetters(String value, String functionName)
{
this.value = value;
this.functionName = functionName;
}
private String value;
private String functionName;
public String getFunctionName()
{
return functionName;
}
}
void specialCaseDate(IBinaryOperatorNode node, MemberAccessExpressionNode leftSide)
{
MemberAccessExpressionNode dateNode = (MemberAccessExpressionNode)leftSide;
IIdentifierNode rightSide = (IIdentifierNode)dateNode.getRightOperandNode();
String op = node.getOperator().getOperatorText();
boolean isAssignment = op.contains("=")
&& !op.contains("==")
&& !(op.startsWith("<") || op.startsWith(">") || op
.startsWith("!"));
getWalker().walk(dateNode.getLeftOperandNode());
String rightName = rightSide.getName();
if (isAssignment)
{
DatePropertiesSetters prop = DatePropertiesSetters.valueOf(rightName.toUpperCase());
write(ASEmitterTokens.MEMBER_ACCESS);
write(prop.getFunctionName());
write(ASEmitterTokens.PAREN_OPEN);
if (op.length() > 1)
{
DatePropertiesGetters propGetter = DatePropertiesGetters.valueOf(rightName.toUpperCase());
getWalker().walk(dateNode.getLeftOperandNode());
write(ASEmitterTokens.MEMBER_ACCESS);
write(propGetter.getFunctionName());
write(ASEmitterTokens.PAREN_OPEN);
write(ASEmitterTokens.PAREN_CLOSE);
write(ASEmitterTokens.SPACE);
write(op.substring(0, 1));
write(ASEmitterTokens.SPACE);
}
getWalker().walk(node.getRightOperandNode());
write(ASEmitterTokens.PAREN_CLOSE);
}
else
{
DatePropertiesGetters propGetter = DatePropertiesGetters.valueOf(rightName.toUpperCase());
write(ASEmitterTokens.MEMBER_ACCESS);
write(propGetter.getFunctionName());
write(ASEmitterTokens.PAREN_OPEN);
write(ASEmitterTokens.PAREN_CLOSE);
write(ASEmitterTokens.SPACE);
write(op);
write(ASEmitterTokens.SPACE);
getWalker().walk(node.getRightOperandNode());
}
}
}