anthem/include/anthem/Context.h
Patrick Lühne 7bde7c498f
Represent predicate parameters explicitly
This adds a vector of Parameter structs to PredicateDeclaration. In this
way, the domain of each parameter can be tracked individually.
2018-04-20 16:37:48 +02:00

97 lines
2.7 KiB
C++

#ifndef __ANTHEM__CONTEXT_H
#define __ANTHEM__CONTEXT_H
#include <optional>
#include <anthem/AST.h>
#include <anthem/output/Logger.h>
#include <anthem/output/ParenthesisStyle.h>
namespace anthem
{
////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Context
//
////////////////////////////////////////////////////////////////////////////////////////////////////
struct PredicateDeclarationMeta
{
ast::PredicateDeclaration *declaration;
bool used{false};
};
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Context
{
Context() = default;
explicit Context(output::Logger &&logger)
: logger{std::move(logger)}
{
}
ast::PredicateDeclaration *findOrCreatePredicateDeclaration(const char *name, size_t arity)
{
const auto matchesExistingPredicateDeclaration =
[&](const auto &predicateDeclaration)
{
return (predicateDeclaration->arity() == arity
&& strcmp(predicateDeclaration->name.c_str(), name) == 0);
};
auto matchingPredicateDeclaration = std::find_if(predicateDeclarations.begin(),
predicateDeclarations.end(), matchesExistingPredicateDeclaration);
if (matchingPredicateDeclaration != predicateDeclarations.end())
return matchingPredicateDeclaration->get();
predicateDeclarations.emplace_back(std::make_unique<ast::PredicateDeclaration>(name, arity));
return predicateDeclarations.back().get();
}
ast::FunctionDeclaration *findOrCreateFunctionDeclaration(const char *name, size_t arity)
{
const auto matchesExistingFunctionDeclaration =
[&](const auto &functionDeclarations)
{
return (functionDeclarations->arity == arity
&& strcmp(functionDeclarations->name.c_str(), name) == 0);
};
auto matchingFunctionDeclaration = std::find_if(functionDeclarations.begin(),
functionDeclarations.end(), matchesExistingFunctionDeclaration);
if (matchingFunctionDeclaration != functionDeclarations.end())
return matchingFunctionDeclaration->get();
functionDeclarations.emplace_back(std::make_unique<ast::FunctionDeclaration>(name, arity));
return functionDeclarations.back().get();
}
output::Logger logger;
bool performSimplification = false;
bool performCompletion = false;
std::vector<std::unique_ptr<ast::PredicateDeclaration>> predicateDeclarations;
ast::PredicateDeclaration::Visibility defaultPredicateVisibility{ast::PredicateDeclaration::Visibility::Visible};
std::vector<std::unique_ptr<ast::FunctionDeclaration>> functionDeclarations;
bool externalStatementsUsed{false};
bool showStatementsUsed{false};
ast::ParenthesisStyle parenthesisStyle = ast::ParenthesisStyle::Normal;
};
////////////////////////////////////////////////////////////////////////////////////////////////////
}
#endif