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InvalidState.java
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InvalidState.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.codegen;
class InvalidState implements MethodEmitter
{
public static final ClassEmitter CLASS_DONE = new ClassEmitter()
{
@Override
public MethodEmitter method( MethodDeclaration method )
{
throw new IllegalStateException( "class done" );
}
@Override
public void field( FieldReference field, Expression value )
{
throw new IllegalStateException( "class done" );
}
@Override
public void done()
{
throw new IllegalStateException( "class done" );
}
};
public static final MethodEmitter BLOCK_CLOSED = new InvalidState( "this block has been closed" );
public static final MethodEmitter IN_SUB_BLOCK = new InvalidState( "currently generating a sub-block of this block" );
private final String reason;
private InvalidState( String reason )
{
this.reason = reason;
}
@Override
public void done()
{
throw new IllegalStateException( reason );
}
@Override
public void expression( Expression expression )
{
throw new IllegalStateException( reason );
}
@Override
public void put( Expression target, FieldReference field, Expression value )
{
throw new IllegalStateException( reason );
}
@Override
public void returns()
{
throw new IllegalStateException( reason );
}
@Override
public void returns( Expression value )
{
throw new IllegalStateException( reason );
}
@Override
public void assign( LocalVariable variable, Expression value )
{
throw new IllegalStateException( reason );
}
@Override
public void beginWhile( Expression test )
{
throw new IllegalStateException( reason );
}
@Override
public void beginIf( Expression test )
{
throw new IllegalStateException( reason );
}
@Override
public void beginFinally()
{
throw new IllegalStateException( reason );
}
@Override
public void endBlock()
{
throw new IllegalStateException( reason );
}
@Override
public void beginTry( Resource... resources )
{
throw new IllegalStateException( reason );
}
@Override
public void throwException( Expression exception )
{
throw new IllegalStateException( reason );
}
@Override
public void beginCatch( Parameter exception )
{
throw new IllegalStateException( reason );
}
@Override
public void declare( LocalVariable local )
{
throw new IllegalStateException( reason );
}
@Override
public void assignVariableInScope( LocalVariable local, Expression value )
{
throw new IllegalStateException( reason );
}
@Override
public void beginForEach( Parameter local, Expression iterable )
{
throw new IllegalStateException( reason );
}
}