/*
ToLocal.java
(c) 2010-2014 Edward Swartz
All rights reserved. This program and the accompanying materials
are made available under the terms of the Eclipse Public License v1.0
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/epl-v10.html
*/
package v9t9.tools.forthcomp.words;
import v9t9.tools.forthcomp.AbortException;
import v9t9.tools.forthcomp.HostContext;
import v9t9.tools.forthcomp.ITargetWord;
import v9t9.tools.forthcomp.TargetContext;
/**
* :> name -- new local
* @author ejs
*
*/
public class ToLocal extends BaseStdWord {
/* (non-Javadoc)
* @see v9t9.forthcomp.IWord#execute(v9t9.forthcomp.HostContext, v9t9.forthcomp.TargetContext)
*/
public void execute(HostContext hostContext, TargetContext targetContext)
throws AbortException {
hostContext.assertCompiling();
ITargetWord theWord = (ITargetWord) targetContext.getLatest();
if (!theWord.getEntry().hasLocals()) {
if (hostContext.inCSP()) {
throw hostContext.abort("Cannot first add locals inside conditionals");
}
if (!targetContext.isLocalSupportAvailable(hostContext)) {
throw hostContext.abort("Locals not supported");
}
targetContext.compileSetupLocals(hostContext);
theWord.getEntry().allocLocals();
targetContext.setLatest(theWord);
}
String name = hostContext.readToken();
theWord.getEntry().defineLocal(name);
targetContext.compileAllocLocals(1);
}
/* (non-Javadoc)
* @see v9t9.forthcomp.IWord#isImmediate()
*/
public boolean isImmediate() {
return true;
}
}