ExpressionScript.cc

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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    copy of this software and associated documentation files (the "Software"),
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    The above copyright notice and this permission notice shall be included in
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/**
 * @file ExpressionScript.cc
 *
 * Definition of ExpressionScript class.
 *
 * @author Jussi Nykänen 2004 (nykanen-no.spam-cs.tut.fi)
 */
 
#include <string>
using std::string;
#include <vector>
using std::vector;
 
#include "ExpressionScript.hh"
 
/**
 * Constructor.
 *
 * @param interpreter The interpreter for the script.
 * @param scriptLine A line of script.
 */
ExpressionScript::ExpressionScript(
    ScriptInterpreter* interpreter, 
    std::string scriptLine) : Script(interpreter, scriptLine) {
}
 
/**
 * Constructor.
 *
 * @param interpreter The interpreter for the script.
 * @param script The script.
 */
ExpressionScript::ExpressionScript(
    ScriptInterpreter* interpreter,
    std::vector<std::string>& script) : Script(interpreter, script) {
}
 
/**
 * Destructor.
 */
ExpressionScript::~ExpressionScript() {
}
 
/**
 * Returns true, if the result of the script has changed.
 *
 * @return True, if the result of the script has changed, otherwise false.
 * @exception ScriptExecutionFailure If the execution of the script fails.
 * @exception NumberFormatException If DataObject operation fails.
 */
bool
ExpressionScript::resultChanged() {
    DataObject obj;
    try {
        obj = lastResult();
    } catch (const InvalidData& i) {
        return false;
    }
 
    DataObject exec = execute();
 
    interpreter_->setResult("");
 
    if (obj != exec) {
        return true;
    }
    return false;
}