java/debugger.jpda.truffle/src/org/netbeans/modules/debugger/jpda/truffle/vars/TruffleEvaluator.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
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 * KIND, either express or implied.  See the License for the
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package org.netbeans.modules.debugger.jpda.truffle.vars;

import org.netbeans.api.debugger.jpda.CallStackFrame;
import org.netbeans.api.debugger.jpda.InvalidExpressionException;
import org.netbeans.api.debugger.jpda.JPDADebugger;
import org.netbeans.api.debugger.jpda.ObjectVariable;
import org.netbeans.api.debugger.jpda.Variable;
import org.netbeans.modules.debugger.jpda.truffle.access.TruffleEval;
import org.netbeans.modules.debugger.jpda.truffle.access.TruffleStrataProvider;
import org.netbeans.spi.debugger.ContextProvider;
import org.netbeans.spi.debugger.jpda.Evaluator;

@Evaluator.Registration(language=TruffleStrataProvider.TRUFFLE_STRATUM)
public class TruffleEvaluator implements Evaluator<TruffleExpression> {

    private final JPDADebugger debugger;

    public TruffleEvaluator (ContextProvider lookupProvider) {
        debugger = lookupProvider.lookupFirst (null, JPDADebugger.class);
    }

    @Override
    public Result evaluate(Expression<TruffleExpression> expression, Context context) throws InvalidExpressionException {
        ObjectVariable contextVariable = context.getContextVariable();
        if (contextVariable != null) {
            // String value of the context variable is 
            if ("toString()".equals(expression.getExpression())) {              // NOI18N
                //return new Result(DebuggerSupport.getVarStringValueAsVar(debugger, contextVariable));
                return new Result(contextVariable); // TODO
            }
        }
        TruffleExpression expr = expression.getPreprocessedObject();
        if (expr == null) {
            expr = TruffleExpression.parse(expression.getExpression());
            expression.setPreprocessedObject(expr);
        }
        Variable ret = evaluateIn(expr, context.getCallStackFrame(), contextVariable);
        return new Result(ret);
    }

    private Variable evaluateIn(TruffleExpression expr, CallStackFrame callStackFrame, ObjectVariable contextVar) throws InvalidExpressionException {
        //return DebuggerSupport.evaluate(debugger, callStackFrame, expr.getExpression(), contextVar);
        return TruffleEval.evaluate(debugger, expr.getExpression());
    }
    
}