/*
* Copyright 2011 JBoss, a divison Red Hat, 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 org.jboss.errai.codegen.framework.builder.impl;
import org.jboss.errai.codegen.framework.Context;
import org.jboss.errai.codegen.framework.Statement;
import org.jboss.errai.codegen.framework.builder.BlockBuilder;
import org.jboss.errai.codegen.framework.builder.BuildCallback;
import org.jboss.errai.codegen.framework.builder.CaseBlockBuilder;
import org.jboss.errai.codegen.framework.builder.ContextualSwitchBlockBuilder;
import org.jboss.errai.codegen.framework.builder.StatementEnd;
import org.jboss.errai.codegen.framework.builder.SwitchBlockBuilder;
import org.jboss.errai.codegen.framework.builder.callstack.CallWriter;
import org.jboss.errai.codegen.framework.builder.callstack.DeferredCallElement;
import org.jboss.errai.codegen.framework.builder.callstack.DeferredCallback;
import org.jboss.errai.codegen.framework.control.SwitchBlock;
import org.jboss.errai.codegen.framework.literal.ByteValue;
import org.jboss.errai.codegen.framework.literal.CharValue;
import org.jboss.errai.codegen.framework.literal.IntValue;
import org.jboss.errai.codegen.framework.literal.LiteralFactory;
import org.jboss.errai.codegen.framework.literal.LiteralValue;
import org.jboss.errai.codegen.framework.literal.ShortValue;
/**
* StatementBuilder to generate switch blocks.
*
* @author Christian Sadilek <csadilek@redhat.com>
*/
public class SwitchBlockBuilderImpl extends AbstractStatementBuilder implements SwitchBlockBuilder,
ContextualSwitchBlockBuilder, CaseBlockBuilder {
private SwitchBlock switchBlock;
protected SwitchBlockBuilderImpl(Context context, CallElementBuilder callElementBuilder) {
super(context, callElementBuilder);
}
@Override
public CaseBlockBuilder switch_() {
return switch_(new SwitchBlock());
}
@Override
public CaseBlockBuilder switch_(Statement statement) {
return switch_(new SwitchBlock(statement));
}
private CaseBlockBuilder switch_(final SwitchBlock switchBlock) {
this.switchBlock = switchBlock;
appendCallElement(new DeferredCallElement(new DeferredCallback() {
@Override
public void doDeferred(CallWriter writer, Context context, Statement statement) {
if (statement != null) {
switchBlock.setSwitchExpr(statement);
switchBlock.setSwitchExpr(writer.getCallString());
}
writer.reset();
writer.append(switchBlock.generate(Context.create(context)));
}
}));
return this;
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(IntValue value) {
switchBlock.addCase(value);
return caseBlock(value);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(int value) {
IntValue val = (IntValue) LiteralFactory.getLiteral(value);
return case_(val);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(CharValue value) {
switchBlock.addCase(value);
return caseBlock(value);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(char value) {
CharValue val = (CharValue) LiteralFactory.getLiteral(value);
return case_(val);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(ByteValue value) {
switchBlock.addCase(value);
return caseBlock(value);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(byte value) {
ByteValue val = (ByteValue) LiteralFactory.getLiteral(value);
return case_(val);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(ShortValue value) {
switchBlock.addCase(value);
return caseBlock(value);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(short value) {
ShortValue val = (ShortValue) LiteralFactory.getLiteral(value);
return case_(val);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(LiteralValue<Enum<?>> value) {
switchBlock.addCase(value);
return caseBlock(value);
}
@Override
public BlockBuilder<CaseBlockBuilder> case_(Enum<?> value) {
LiteralValue<Enum<?>> val = (LiteralValue<Enum<?>>) LiteralFactory.getLiteral(value);
return case_(val);
}
private BlockBuilder<CaseBlockBuilder> caseBlock(LiteralValue<?> value) {
return new BlockBuilderImpl<CaseBlockBuilder>(switchBlock.getCaseBlock(value),
new BuildCallback<CaseBlockBuilder>() {
@Override
public CaseBlockBuilder callback(Statement statement) {
return SwitchBlockBuilderImpl.this;
}
});
}
@Override
public BlockBuilder<StatementEnd> default_() {
return new BlockBuilderImpl<StatementEnd>(switchBlock.getDefaultBlock(),
new BuildCallback<StatementEnd>() {
@Override
public StatementEnd callback(Statement statement) {
return SwitchBlockBuilderImpl.this;
}
});
}
}