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Translator from TLA+ to ProB's AST representation.

There is a newer version: 1.4.0

package de.tla2b.analysis;

import tla2sany.semantic.OpApplNode;
import tla2sany.semantic.OpDefNode;
import tlc2.tool.BuiltInOPs;
import de.tla2b.exceptions.NotImplementedException;

public class RecursiveDefinition  extends BuiltInOPs{

	private OpDefNode def;
	private OpApplNode ifThenElse;
	
	public RecursiveDefinition(OpDefNode def) throws NotImplementedException{
		this.def = def;
		evalRecursiveDefinition();
	}
	
	private void evalRecursiveDefinition() throws NotImplementedException {
		if (def.getBody() instanceof OpApplNode) {
			OpApplNode o = (OpApplNode) def.getBody();
			switch (getOpCode(o.getOperator().getName())) {
			case OPCODE_ite: { // IF THEN ELSE
				ifThenElse = o;
				return;
			}
			}
			throw new NotImplementedException(
					"Only IF/THEN/ELSE or CASE constructs are supported at the body of a recursive function.");
		} else {
			throw new NotImplementedException(
					"Only IF/THEN/ELSE or CASE constructs are supported at the body of a recursive function.");
		}
	}
	
	public OpDefNode getOpDefNode() {
		return def;
	}

	public OpApplNode getIfThenElse() {
		return ifThenElse;
	}
}