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authorBardur Arantsson <bardur@scientician.net>2015-02-23 09:11:55 +0100
committerBardur Arantsson <bardur@scientician.net>2015-02-23 09:11:55 +0100
commit062cd07342edc2b003555e90dd2cee0514b9f64a (patch)
tree3c73893dae8a9380c9f24e9c5822c5ec6bf671d5 /vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/fluent/operators/constraintoperator.h
parentffee481435ac0afe3f9a5a3eb07b2f2a46467089 (diff)
Add BanditCpp 1.1.4 test harness
Diffstat (limited to 'vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/fluent/operators/constraintoperator.h')
-rw-r--r--vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/fluent/operators/constraintoperator.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/fluent/operators/constraintoperator.h b/vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/fluent/operators/constraintoperator.h
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+++ b/vendor/bandit/bandit/assertion_frameworks/snowhouse/snowhouse/fluent/operators/constraintoperator.h
@@ -0,0 +1,79 @@
+
+// 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_CONTRAINTOPERATOR_H
+#define IGLOO_CONTRAINTOPERATOR_H
+
+namespace snowhouse {
+
+ struct InvalidExpressionException
+ {
+ InvalidExpressionException(const std::string& message) : m_message(message)
+ {
+ }
+
+ const std::string& Message() const
+ {
+ return m_message;
+ }
+
+ std::string m_message;
+ };
+
+ struct ConstraintOperator
+ {
+ virtual ~ConstraintOperator() {}
+
+ virtual void PerformOperation(ResultStack& result) = 0;
+ virtual int Precedence() const = 0;
+
+ template <typename ConstraintListType, typename ActualType>
+ static bool EvaluateElementAgainstRestOfExpression(ConstraintListType& list, const ActualType& actual)
+ {
+ ResultStack innerResult;
+ OperatorStack innerOperators;
+
+ EvaluateConstraintList(list.m_tail, innerResult, innerOperators, actual);
+ EvaluateAllOperatorsOnStack(innerOperators, innerResult);
+
+ if(innerResult.empty())
+ {
+ throw InvalidExpressionException("The expression after \"" + snowhouse::Stringize(list.m_head) + "\" operator does not yield any result");
+ }
+
+ return innerResult.top();
+ }
+
+ static void EvaluateOperatorsWithLessOrEqualPrecedence(const ConstraintOperator& op, OperatorStack& operators, ResultStack& result)
+ {
+ while(!operators.empty())
+ {
+ ConstraintOperator* op_from_stack = operators.top();
+
+ if(op_from_stack->Precedence() > op.Precedence())
+ {
+ break;
+ }
+
+ op_from_stack->PerformOperation(result);
+ operators.pop();
+ }
+ }
+
+ static void EvaluateAllOperatorsOnStack(OperatorStack& operators, ResultStack& result)
+ {
+ while(!operators.empty())
+ {
+ ConstraintOperator* op = operators.top();
+ op->PerformOperation(result);
+ operators.pop();
+ }
+ }
+ };
+
+}
+
+#endif