/*
* Copyright 2008 Google Inc.
*
* Licensed 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 com.google.gwt.jsio.rebind;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.JType;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.jsio.client.JSWrapper;
import com.google.gwt.user.rebind.SourceWriter;
/**
* Encapsulates accessors for JSWrapper properties.
*/
class JSWrapperFragmentGenerator extends FragmentGenerator {
protected void writeJSNIObjectCreator(FragmentGeneratorContext context)
throws UnableToCompleteException {
SourceWriter sw = context.sw;
JClassType returnType = context.returnType.isClassOrInterface().getErasedType();
sw.print("@");
sw.print(context.qualifiedTypeName);
sw.print("::");
sw.print("__create__");
sw.print(returnType.getQualifiedSourceName().replaceAll("\\.", "_"));
sw.print("()()");
sw.print(".@com.google.gwt.jsio.client.JSWrapper::setJavaScriptObject(Lcom/google/gwt/core/client/JavaScriptObject;)(");
sw.print(context.parameterName);
sw.print(")");
context.creatorFixups.add(returnType);
}
protected void writeJSNIValue(FragmentGeneratorContext context)
throws UnableToCompleteException {
SourceWriter sw = context.sw;
sw.print(".@com.google.gwt.jsio.client.JSWrapper::getJavaScriptObject()()");
}
@Override
boolean accepts(TypeOracle oracle, JType type) {
JClassType asClass = type.isClassOrInterface();
if (asClass == null) {
return false;
} else {
return isAssignable(oracle, asClass, JSWrapper.class);
}
}
@Override
final void fromJS(FragmentGeneratorContext context)
throws UnableToCompleteException {
context.parentLogger.branch(TreeLogger.DEBUG,
"Building string value getter statement", null);
SourceWriter sw = context.sw;
// arg == null ? null : (arg.__gwtPeer || <new object>.setJSO(arg));
sw.print(context.parameterName);
sw.print(" == null ? null : ");
sw.print("(");
sw.print(context.parameterName);
sw.print(".");
sw.print(JSWrapperGenerator.BACKREF);
sw.print(" || ");
writeJSNIObjectCreator(context);
sw.print(")");
}
@Override
final void toJS(FragmentGeneratorContext context)
throws UnableToCompleteException {
context.parentLogger.branch(TreeLogger.DEBUG,
"Building string value setter statement", null);
SourceWriter sw = context.sw;
sw.print(context.parameterName);
sw.print(" == null ? null : ");
sw.print(context.parameterName);
writeJSNIValue(context);
}
@Override
void writeExtractorJSNIReference(FragmentGeneratorContext context)
throws UnableToCompleteException {
SourceWriter sw = context.sw;
JClassType elementType = context.returnType.isClassOrInterface().getErasedType();
sw.print("@");
sw.print(context.qualifiedTypeName);
sw.print("::");
sw.print("__create__");
sw.print(elementType.getQualifiedSourceName().replaceAll("\\.", "_"));
sw.print("()().@com.google.gwt.jsio.client.JSWrapper::getExtractor()()");
context.creatorFixups.add(elementType);
}
}