mirror of
https://github.com/Icinga/icinga2.git
synced 2025-11-04 13:45:04 +01:00
731 lines
21 KiB
C++
731 lines
21 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "config/expression.hpp"
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#include "config/configitem.hpp"
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#include "config/vmops.hpp"
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#include "base/array.hpp"
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#include "base/json.hpp"
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#include "base/object.hpp"
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#include "base/logger.hpp"
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#include "base/exception.hpp"
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#include "base/scriptglobal.hpp"
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#include <boost/foreach.hpp>
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#include <boost/exception_ptr.hpp>
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#include <boost/exception/errinfo_nested_exception.hpp>
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using namespace icinga;
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Expression::~Expression(void)
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{ }
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ExpressionResult Expression::Evaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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try {
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#ifdef I2_DEBUG
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/* std::ostringstream msgbuf;
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ShowCodeFragment(msgbuf, GetDebugInfo(), false);
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Log(LogDebug, "Expression")
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<< "Executing:\n" << msgbuf.str();*/
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#endif /* I2_DEBUG */
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return DoEvaluate(frame, dhint);
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} catch (const ScriptError& ex) {
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throw;
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} catch (const std::exception& ex) {
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BOOST_THROW_EXCEPTION(ScriptError("Error while evaluating expression: " + String(ex.what()), GetDebugInfo())
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<< boost::errinfo_nested_exception(boost::current_exception()));
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}
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}
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bool Expression::GetReference(ScriptFrame& frame, bool init_dict, Value *parent, String *index, DebugHint **dhint) const
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{
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return false;
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}
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const DebugInfo& Expression::GetDebugInfo(void) const
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{
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static DebugInfo debugInfo;
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return debugInfo;
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}
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Expression *icinga::MakeIndexer(ScopeSpecifier scopeSpec, const String& index)
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{
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Expression *scope = new GetScopeExpression(scopeSpec);
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return new IndexerExpression(scope, MakeLiteral(index));
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}
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void DictExpression::MakeInline(void)
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{
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m_Inline = true;
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}
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LiteralExpression::LiteralExpression(const Value& value)
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: m_Value(value)
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{ }
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ExpressionResult LiteralExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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return m_Value;
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}
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const DebugInfo& DebuggableExpression::GetDebugInfo(void) const
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{
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return m_DebugInfo;
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}
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ExpressionResult VariableExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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if (frame.Locals && frame.Locals->Contains(m_Variable))
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return frame.Locals->Get(m_Variable);
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else if (frame.Self.IsObject() && frame.Locals != static_cast<Object::Ptr>(frame.Self) && VMOps::HasField(frame.Self, m_Variable))
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return VMOps::GetField(frame.Self, m_Variable, m_DebugInfo);
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else
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return ScriptGlobal::Get(m_Variable);
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}
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bool VariableExpression::GetReference(ScriptFrame& frame, bool init_dict, Value *parent, String *index, DebugHint **dhint) const
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{
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*index = m_Variable;
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if (frame.Locals && frame.Locals->Contains(m_Variable)) {
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*parent = frame.Locals;
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if (dhint)
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*dhint = NULL;
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} else if (frame.Self.IsObject() && frame.Locals != static_cast<Object::Ptr>(frame.Self) && VMOps::HasField(frame.Self, m_Variable)) {
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*parent = frame.Self;
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if (dhint && *dhint)
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*dhint = new DebugHint((*dhint)->GetChild(m_Variable));
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} else if (ScriptGlobal::Exists(m_Variable)) {
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*parent = ScriptGlobal::GetGlobals();
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if (dhint)
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*dhint = NULL;
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} else
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*parent = frame.Self;
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return true;
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}
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ExpressionResult NegateExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand = m_Operand->Evaluate(frame);
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CHECK_RESULT(operand);
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return ~(long)operand.GetValue();
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}
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ExpressionResult LogicalNegateExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand = m_Operand->Evaluate(frame);
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CHECK_RESULT(operand);
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return !operand.GetValue().ToBool();
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}
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ExpressionResult AddExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() + operand2.GetValue();
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}
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ExpressionResult SubtractExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() - operand2.GetValue();
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}
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ExpressionResult MultiplyExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() * operand2.GetValue();
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}
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ExpressionResult DivideExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() / operand2.GetValue();
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}
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ExpressionResult ModuloExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() % operand2.GetValue();
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}
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ExpressionResult XorExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() ^ operand2.GetValue();
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}
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ExpressionResult BinaryAndExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() & operand2.GetValue();
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}
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ExpressionResult BinaryOrExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() | operand2.GetValue();
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}
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ExpressionResult ShiftLeftExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() << operand2.GetValue();
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}
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ExpressionResult ShiftRightExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() >> operand2.GetValue();
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}
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ExpressionResult EqualExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() == operand2.GetValue();
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}
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ExpressionResult NotEqualExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() != operand2.GetValue();
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}
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ExpressionResult LessThanExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() < operand2.GetValue();
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}
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ExpressionResult GreaterThanExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() > operand2.GetValue();
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}
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ExpressionResult LessThanOrEqualExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() <= operand2.GetValue();
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}
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ExpressionResult GreaterThanOrEqualExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand1.GetValue() >= operand2.GetValue();
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}
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ExpressionResult InExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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if (operand2.GetValue().IsEmpty())
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return false;
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else if (!operand2.GetValue().IsObjectType<Array>())
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BOOST_THROW_EXCEPTION(ScriptError("Invalid right side argument for 'in' operator: " + JsonEncode(operand2.GetValue()), m_DebugInfo));
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1)
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Array::Ptr arr = operand2.GetValue();
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return arr->Contains(operand1.GetValue());
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}
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ExpressionResult NotInExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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if (operand2.GetValue().IsEmpty())
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return true;
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else if (!operand2.GetValue().IsObjectType<Array>())
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BOOST_THROW_EXCEPTION(ScriptError("Invalid right side argument for 'in' operator: " + JsonEncode(operand2.GetValue()), m_DebugInfo));
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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Array::Ptr arr = operand2.GetValue();
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return !arr->Contains(operand1.GetValue());
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}
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ExpressionResult LogicalAndExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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if (!operand1.GetValue().ToBool())
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return operand1;
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else {
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand2.GetValue();
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}
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}
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ExpressionResult LogicalOrExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ExpressionResult operand1 = m_Operand1->Evaluate(frame);
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CHECK_RESULT(operand1);
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if (operand1.GetValue().ToBool())
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return operand1;
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else {
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ExpressionResult operand2 = m_Operand2->Evaluate(frame);
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CHECK_RESULT(operand2);
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return operand2.GetValue();
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}
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}
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ExpressionResult FunctionCallExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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Value self, vfunc;
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String index;
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if (m_FName->GetReference(frame, false, &self, &index))
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vfunc = VMOps::GetField(self, index, m_DebugInfo);
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else {
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ExpressionResult vfuncres = m_FName->Evaluate(frame);
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CHECK_RESULT(vfuncres);
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vfunc = vfuncres.GetValue();
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}
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if (!vfunc.IsObjectType<Function>())
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BOOST_THROW_EXCEPTION(ScriptError("Argument is not a callable object.", m_DebugInfo));
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Function::Ptr func = vfunc;
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std::vector<Value> arguments;
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BOOST_FOREACH(Expression *arg, m_Args) {
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ExpressionResult argres = arg->Evaluate(frame);
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CHECK_RESULT(argres);
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arguments.push_back(argres.GetValue());
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}
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return VMOps::FunctionCall(frame, self, func, arguments);
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}
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ExpressionResult ArrayExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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Array::Ptr result = new Array();
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BOOST_FOREACH(Expression *aexpr, m_Expressions) {
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ExpressionResult element = aexpr->Evaluate(frame);
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CHECK_RESULT(element);
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result->Add(element.GetValue());
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}
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return result;
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}
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ExpressionResult DictExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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ScriptFrame *dframe;
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ScriptFrame rframe;
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if (!m_Inline) {
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dframe = &rframe;
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rframe.Locals = frame.Locals;
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rframe.Self = new Dictionary();
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} else {
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dframe = &frame;
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}
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Value result;
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BOOST_FOREACH(Expression *aexpr, m_Expressions) {
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ExpressionResult element = aexpr->Evaluate(*dframe, dhint);
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CHECK_RESULT(element);
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result = element.GetValue();
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}
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if (m_Inline)
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return result;
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else
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return dframe->Self;
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}
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ExpressionResult GetScopeExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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if (m_ScopeSpec == ScopeLocal)
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return frame.Locals;
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else if (m_ScopeSpec == ScopeCurrent)
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return frame.Self;
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else if (m_ScopeSpec == ScopeThis)
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return frame.Self;
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else if (m_ScopeSpec == ScopeGlobal)
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return ScriptGlobal::GetGlobals();
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else
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VERIFY(!"Invalid scope.");
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}
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ExpressionResult SetExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
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{
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DebugHint *psdhint = dhint;
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Value parent;
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String index;
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if (!m_Operand1->GetReference(frame, true, &parent, &index, &psdhint))
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BOOST_THROW_EXCEPTION(ScriptError("Expression cannot be assigned to.", m_DebugInfo));
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ExpressionResult operand2 = m_Operand2->Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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if (m_Op != OpSetLiteral) {
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Value object = VMOps::GetField(parent, index, m_DebugInfo);
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Expression *lhs = MakeLiteral(object);
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Expression *rhs = MakeLiteral(operand2);
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switch (m_Op) {
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case OpSetAdd:
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operand2 = AddExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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case OpSetSubtract:
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operand2 = SubtractExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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case OpSetMultiply:
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operand2 = MultiplyExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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case OpSetDivide:
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operand2 = DivideExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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case OpSetModulo:
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operand2 = ModuloExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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case OpSetXor:
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operand2 = XorExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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case OpSetBinaryAnd:
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operand2 = BinaryAndExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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case OpSetBinaryOr:
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operand2 = BinaryOrExpression(lhs, rhs, m_DebugInfo).Evaluate(frame, dhint);
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CHECK_RESULT(operand2);
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break;
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default:
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VERIFY(!"Invalid opcode.");
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}
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}
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VMOps::SetField(parent, index, operand2.GetValue(), m_DebugInfo);
|
|
|
|
if (psdhint) {
|
|
psdhint->AddMessage("=", m_DebugInfo);
|
|
|
|
if (psdhint != dhint)
|
|
delete psdhint;
|
|
}
|
|
|
|
return Empty;
|
|
}
|
|
|
|
ExpressionResult ConditionalExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
ExpressionResult condition = m_Condition->Evaluate(frame, dhint);
|
|
CHECK_RESULT(condition);
|
|
|
|
if (condition.GetValue().ToBool())
|
|
return m_TrueBranch->Evaluate(frame, dhint);
|
|
else if (m_FalseBranch)
|
|
return m_FalseBranch->Evaluate(frame, dhint);
|
|
|
|
return Empty;
|
|
}
|
|
|
|
ExpressionResult WhileExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
for (;;) {
|
|
ExpressionResult condition = m_Condition->Evaluate(frame, dhint);
|
|
CHECK_RESULT(condition);
|
|
|
|
if (!condition.GetValue().ToBool())
|
|
break;
|
|
|
|
ExpressionResult loop_body = m_LoopBody->Evaluate(frame, dhint);
|
|
CHECK_RESULT_LOOP(loop_body);
|
|
}
|
|
|
|
return Empty;
|
|
}
|
|
|
|
ExpressionResult ReturnExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
ExpressionResult operand = m_Operand->Evaluate(frame);
|
|
CHECK_RESULT(operand);
|
|
|
|
return ExpressionResult(operand.GetValue(), ResultReturn);
|
|
}
|
|
|
|
ExpressionResult BreakExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
return ExpressionResult(Empty, ResultBreak);
|
|
}
|
|
|
|
ExpressionResult ContinueExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
return ExpressionResult(Empty, ResultContinue);
|
|
}
|
|
|
|
ExpressionResult IndexerExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
ExpressionResult operand1 = m_Operand1->Evaluate(frame, dhint);
|
|
CHECK_RESULT(operand1);
|
|
|
|
ExpressionResult operand2 = m_Operand2->Evaluate(frame, dhint);
|
|
CHECK_RESULT(operand2);
|
|
|
|
return VMOps::GetField(operand1.GetValue(), operand2.GetValue(), m_DebugInfo);
|
|
}
|
|
|
|
bool IndexerExpression::GetReference(ScriptFrame& frame, bool init_dict, Value *parent, String *index, DebugHint **dhint) const
|
|
{
|
|
Value vparent;
|
|
String vindex;
|
|
DebugHint *psdhint = NULL;
|
|
bool free_psd = false;
|
|
|
|
if (dhint)
|
|
psdhint = *dhint;
|
|
|
|
if (m_Operand1->GetReference(frame, init_dict, &vparent, &vindex, &psdhint)) {
|
|
if (init_dict && VMOps::GetField(vparent, vindex, m_Operand1->GetDebugInfo()).IsEmpty())
|
|
VMOps::SetField(vparent, vindex, new Dictionary(), m_Operand1->GetDebugInfo());
|
|
|
|
*parent = VMOps::GetField(vparent, vindex, m_DebugInfo);
|
|
free_psd = true;
|
|
} else {
|
|
ExpressionResult operand1 = m_Operand1->Evaluate(frame);
|
|
*parent = operand1.GetValue();
|
|
}
|
|
|
|
ExpressionResult operand2 = m_Operand2->Evaluate(frame);
|
|
*index = operand2.GetValue();
|
|
|
|
if (dhint && psdhint)
|
|
*dhint = new DebugHint(psdhint->GetChild(*index));
|
|
|
|
if (free_psd)
|
|
delete psdhint;
|
|
|
|
return true;
|
|
}
|
|
|
|
void icinga::BindToScope(Expression *& expr, ScopeSpecifier scopeSpec)
|
|
{
|
|
DictExpression *dexpr = dynamic_cast<DictExpression *>(expr);
|
|
|
|
if (dexpr) {
|
|
BOOST_FOREACH(Expression *& expr, dexpr->m_Expressions)
|
|
BindToScope(expr, scopeSpec);
|
|
|
|
return;
|
|
}
|
|
|
|
SetExpression *aexpr = dynamic_cast<SetExpression *>(expr);
|
|
|
|
if (aexpr) {
|
|
BindToScope(aexpr->m_Operand1, scopeSpec);
|
|
|
|
return;
|
|
}
|
|
|
|
IndexerExpression *iexpr = dynamic_cast<IndexerExpression *>(expr);
|
|
|
|
if (iexpr) {
|
|
BindToScope(iexpr->m_Operand1, scopeSpec);
|
|
return;
|
|
}
|
|
|
|
LiteralExpression *lexpr = dynamic_cast<LiteralExpression *>(expr);
|
|
ScriptFrame frame;
|
|
|
|
if (lexpr && lexpr->Evaluate(frame).GetValue().IsString()) {
|
|
Expression *scope = new GetScopeExpression(scopeSpec);
|
|
expr = new IndexerExpression(scope, lexpr, lexpr->GetDebugInfo());
|
|
}
|
|
|
|
VariableExpression *vexpr = dynamic_cast<VariableExpression *>(expr);
|
|
|
|
if (vexpr) {
|
|
Expression *scope = new GetScopeExpression(scopeSpec);
|
|
Expression *new_expr = new IndexerExpression(scope, MakeLiteral(vexpr->GetVariable()), vexpr->GetDebugInfo());
|
|
delete expr;
|
|
expr = new_expr;
|
|
}
|
|
}
|
|
|
|
ExpressionResult ImportExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
String type = VMOps::GetField(frame.Self, "type", m_DebugInfo);
|
|
ExpressionResult nameres = m_Name->Evaluate(frame);
|
|
CHECK_RESULT(nameres);
|
|
Value name = nameres.GetValue();
|
|
|
|
if (!name.IsString())
|
|
BOOST_THROW_EXCEPTION(ScriptError("Template/object name must be a string", m_DebugInfo));
|
|
|
|
ConfigItem::Ptr item = ConfigItem::GetObject(type, name);
|
|
|
|
if (!item)
|
|
BOOST_THROW_EXCEPTION(ScriptError("Import references unknown template: '" + name + "'", m_DebugInfo));
|
|
|
|
ExpressionResult result = item->GetExpression()->Evaluate(frame, dhint);
|
|
CHECK_RESULT(result);
|
|
|
|
return Empty;
|
|
}
|
|
|
|
ExpressionResult FunctionExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
return VMOps::NewFunction(frame, m_Args, m_ClosedVars, m_Expression);
|
|
}
|
|
|
|
ExpressionResult ApplyExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
ExpressionResult nameres = m_Name->Evaluate(frame);
|
|
CHECK_RESULT(nameres);
|
|
|
|
return VMOps::NewApply(frame, m_Type, m_Target, nameres.GetValue(), m_Filter,
|
|
m_FKVar, m_FVVar, m_FTerm, m_ClosedVars, m_Expression, m_DebugInfo);
|
|
}
|
|
|
|
ExpressionResult ObjectExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
String name;
|
|
|
|
if (m_Name) {
|
|
ExpressionResult nameres = m_Name->Evaluate(frame, dhint);
|
|
CHECK_RESULT(nameres);
|
|
|
|
name = nameres.GetValue();
|
|
}
|
|
|
|
return VMOps::NewObject(frame, m_Abstract, m_Type, name, m_Filter, m_Zone,
|
|
m_ClosedVars, m_Expression, m_DebugInfo);
|
|
}
|
|
|
|
ExpressionResult ForExpression::DoEvaluate(ScriptFrame& frame, DebugHint *dhint) const
|
|
{
|
|
ExpressionResult valueres = m_Value->Evaluate(frame, dhint);
|
|
CHECK_RESULT(valueres);
|
|
|
|
return VMOps::For(frame, m_FKVar, m_FVVar, valueres.GetValue(), m_Expression, m_DebugInfo);
|
|
}
|
|
|