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// Copyright Joakim Karlsson & Kim Gräsman 2010-2012.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef IGLOO_EXPRESSIONBUILDER_H
#define IGLOO_EXPRESSIONBUILDER_H
namespace snowhouse {
// ---- Evaluation of list of constraints
template <typename ConstraintListType, typename ActualType>
inline void EvaluateConstraintList(ConstraintListType& constraint_list, ResultStack& result, OperatorStack& operators, const ActualType& actual)
{
constraint_list.m_head.Evaluate(constraint_list, result, operators, actual);
}
template <typename ActualType>
inline void EvaluateConstraintList(Nil&, ResultStack&, OperatorStack&, const ActualType&) {}
template <typename ConstraintListType>
struct ExpressionBuilder
{
ExpressionBuilder(const ConstraintListType& list) : m_constraint_list(list)
{
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EqualsConstraint<ExpectedType> >, Nil> >::t>
EqualTo(const ExpectedType& expected)
{
typedef ConstraintAdapter<EqualsConstraint<ExpectedType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(expected);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
template <typename ExpectedType, typename DeltaType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EqualsWithDeltaConstraint<ExpectedType, DeltaType> >, Nil> >::t>
EqualToWithDelta(const ExpectedType& expected, const DeltaType& delta)
{
typedef ConstraintAdapter<EqualsWithDeltaConstraint<ExpectedType, DeltaType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(EqualsWithDeltaConstraint<ExpectedType, DeltaType>(expected, delta));
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
template <typename MatcherType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<FulfillsConstraint<MatcherType> >, Nil> >::t>
Fulfilling(const MatcherType& matcher)
{
typedef ConstraintAdapter<FulfillsConstraint<MatcherType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(matcher);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EqualsConstraint<bool> >, Nil> >::t>
False()
{
return EqualTo<bool>(false);
}
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EqualsConstraint<bool> >, Nil> >::t>
True()
{
return EqualTo<bool>(true);
}
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EqualsConstraint<std::string> >, Nil> >::t>
EqualTo(const char* expected)
{
return EqualTo<std::string>(std::string(expected));
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<IsGreaterThanConstraint<ExpectedType> >, Nil> >::t>
GreaterThan(const ExpectedType& expected)
{
typedef ConstraintAdapter<IsGreaterThanConstraint<ExpectedType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(expected);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<IsLessThanConstraint<ExpectedType> >, Nil> >::t>
LessThan(const ExpectedType& expected)
{
typedef ConstraintAdapter<IsLessThanConstraint<ExpectedType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(expected);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<ContainsConstraint<ExpectedType> >, Nil> >::t>
Containing(const ExpectedType& expected)
{
typedef ConstraintAdapter<ContainsConstraint<ExpectedType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(expected);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<ContainsConstraint<std::string> >, Nil> >::t>
Containing(const char* expected)
{
return Containing<std::string>(std::string(expected));
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EndsWithConstraint<ExpectedType> >, Nil> >::t>
EndingWith(const ExpectedType& expected)
{
typedef ConstraintAdapter<EndsWithConstraint<ExpectedType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(expected);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EndsWithConstraint<std::string> >, Nil> >::t>
EndingWith(const char* expected)
{
return EndingWith(std::string(expected));
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<StartsWithConstraint<ExpectedType> >, Nil> >::t>
StartingWith(const ExpectedType& expected)
{
typedef ConstraintAdapter<StartsWithConstraint<ExpectedType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(expected);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<StartsWithConstraint<std::string> >, Nil> >::t>
StartingWith(const char* expected)
{
return StartingWith(std::string(expected));
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<HasLengthConstraint<ExpectedType> >, Nil> >::t>
OfLength(const ExpectedType& expected)
{
typedef ConstraintAdapter<HasLengthConstraint<ExpectedType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(expected);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<HasLengthConstraint<int> >, Nil> >::t>
Empty()
{
typedef ConstraintAdapter<HasLengthConstraint<int> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(0);
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
template <typename ExpectedType>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EqualsContainerConstraint<ExpectedType, bool (*)(const typename ExpectedType::value_type&, const typename ExpectedType::value_type&)> >, Nil> >::t>
EqualToContainer(const ExpectedType& expected)
{
typedef bool (*DefaultBinaryPredivateType)(const typename ExpectedType::value_type&, const typename ExpectedType::value_type&);
typedef ConstraintAdapter<EqualsContainerConstraint<ExpectedType, DefaultBinaryPredivateType> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(EqualsContainerConstraint<ExpectedType, DefaultBinaryPredivateType>(expected, constraint_internal::default_comparer<typename ExpectedType::value_type>));
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
template <typename ExpectedType, typename BinaryPredicate>
ExpressionBuilder<typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapter<EqualsContainerConstraint<ExpectedType, BinaryPredicate> >, Nil> >::t>
EqualToContainer(const ExpectedType& expected, const BinaryPredicate predicate)
{
typedef ConstraintAdapter<EqualsContainerConstraint<ExpectedType, BinaryPredicate> > ConstraintAdapterType;
typedef ExpressionBuilder< typename type_concat<ConstraintListType, ConstraintList<ConstraintAdapterType, Nil> >::t > BuilderType;
ConstraintAdapterType constraint(EqualsContainerConstraint<ExpectedType, BinaryPredicate>(expected, predicate));
ConstraintList<ConstraintAdapterType, Nil> node(constraint, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
typedef ConstraintList<AndOperator, Nil> AndOperatorNode;
typedef ConstraintList<OrOperator, Nil> OrOperatorNode;
typedef ConstraintList<NotOperator, Nil> NotOperatorNode;
typedef ConstraintList<AllOperator, Nil> AllOperatorNode;
typedef ConstraintList<AtLeastOperator, Nil> AtLeastOperatorNode;
typedef ConstraintList<ExactlyOperator, Nil> ExactlyOperatorNode;
typedef ConstraintList<AtMostOperator, Nil> AtMostOperatorNode;
typedef ConstraintList<NoneOperator, Nil> NoneOperatorNode;
ExpressionBuilder<typename type_concat<ConstraintListType, AllOperatorNode>::t> All()
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, AllOperatorNode>::t> BuilderType;
AllOperator op;
AllOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, AtLeastOperatorNode>::t> AtLeast(unsigned int expected)
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, AtLeastOperatorNode>::t> BuilderType;
AtLeastOperator op(expected);
AtLeastOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, ExactlyOperatorNode>::t> Exactly(unsigned int expected)
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, ExactlyOperatorNode>::t> BuilderType;
ExactlyOperator op(expected);
ExactlyOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, AtMostOperatorNode>::t> AtMost(unsigned int expected)
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, AtMostOperatorNode>::t> BuilderType;
AtMostOperator op(expected);
AtMostOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, NoneOperatorNode>::t> None()
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, NoneOperatorNode>::t> BuilderType;
NoneOperator op;
NoneOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, AndOperatorNode>::t> And()
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, AndOperatorNode>::t> BuilderType;
AndOperator op;
AndOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, OrOperatorNode>::t> Or()
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, OrOperatorNode>::t> BuilderType;
OrOperator op;
OrOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
ExpressionBuilder<typename type_concat<ConstraintListType, NotOperatorNode>::t> Not()
{
typedef ExpressionBuilder<typename type_concat<ConstraintListType, NotOperatorNode>::t> BuilderType;
NotOperator op;
NotOperatorNode node(op, Nil());
return BuilderType(Concatenate(m_constraint_list, node));
}
template <typename ActualType>
void Evaluate(ResultStack& result, OperatorStack& operators, const ActualType& actual)
{
EvaluateConstraintList(m_constraint_list, result, operators, actual);
}
ConstraintListType m_constraint_list;
};
template <typename T>
inline void StringizeConstraintList(const T& list, std::ostringstream& stm)
{
if (stm.tellp() > 0)
stm << " ";
stm << snowhouse::Stringize(list.m_head);
StringizeConstraintList(list.m_tail, stm);
}
inline void StringizeConstraintList(const Nil&, std::ostringstream&)
{
}
template<typename ConstraintListType>
struct Stringizer< ExpressionBuilder<ConstraintListType> >
{
static std::string ToString(const ExpressionBuilder<ConstraintListType>& builder)
{
std::ostringstream stm;
StringizeConstraintList(builder.m_constraint_list, stm);
return stm.str();
}
};
}
#endif
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