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Handling untyped variables correctly in the PDDL translator.

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This commit is contained in:
Patrick Lühne 2016-06-14 13:21:41 +02:00
parent e0dd9833a3
commit 39a32a6e0a
2 changed files with 37 additions and 62 deletions
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3
include/plasp/pddl/TranslatorASP.h
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@ -26,15 +26,14 @@ class TranslatorASP
private:
void translateDomain() const;
void translateTypes() const;
void translateConstants() const;
void translatePredicates() const;
void translateActions() const;
void translateProblem() const;
void translateObjects() const;
void translateInitialState() const;
void translateGoal() const;
void translateConstants(const std::string &header, const expressions::Constants &constants) const;
void translateVariablesHead(const expressions::Variables &variables) const;
void translateVariablesBody(const expressions::Variables &variables) const;
void translateLiteral(const Expression &literal) const;

94
src/plasp/pddl/TranslatorASP.cpp
View File

@ -60,7 +60,7 @@ void TranslatorASP::translateDomain() const
if (!domain.constants().empty())
{
m_ostream << std::endl;
translateConstants();
translateConstants("constants", domain.constants());
}
// Predicates
@ -111,32 +111,6 @@ void TranslatorASP::translateTypes() const
////////////////////////////////////////////////////////////////////////////////////////////////////
void TranslatorASP::translateConstants() const
{
m_ostream << "% constants";
const auto &constants = m_description.domain().constants();
std::for_each(constants.cbegin(), constants.cend(),
[&](const auto &constant)
{
m_ostream << std::endl;
const auto constantName = utils::escapeASP(constant->name());
m_ostream << "constant(" << constantName << ")." << std::endl;
const auto *type = constant->type();
if (type == nullptr)
return;
m_ostream << "hasType(constant(" << constantName << "), type(" << utils::escapeASP(type->name()) << "))." << std::endl;
});
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void TranslatorASP::translatePredicates() const
{
m_ostream << "% predicates";
@ -269,6 +243,28 @@ void TranslatorASP::translateActions() const
////////////////////////////////////////////////////////////////////////////////////////////////////
void TranslatorASP::translateConstants(const std::string &header, const expressions::Constants &constants) const
{
m_ostream << "% " << header << std::endl;
std::for_each(constants.cbegin(), constants.cend(),
[&](const auto &constant)
{
const auto constantName = utils::escapeASP(constant->name());
m_ostream << "constant(" << constantName << ")." << std::endl;
const auto *type = constant->type();
if (type == nullptr)
return;
m_ostream << "hasType(constant(" << constantName << "), type(" << utils::escapeASP(type->name()) << "))." << std::endl;
});
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void TranslatorASP::translateVariablesHead(const expressions::Variables &variables) const
{
if (variables.empty())
@ -283,7 +279,12 @@ void TranslatorASP::translateVariablesHead(const expressions::Variables &variabl
const auto &variable = **i;
// Handle typed variables
if (variable.type() != nullptr)
m_ostream << utils::escapeASPVariable(variable.name());
// Allow any constant if typing is disabled
else
m_ostream << "constant(" << utils::escapeASPVariable(variable.name()) << ")";
}
m_ostream << ")";
@ -300,11 +301,12 @@ void TranslatorASP::translateVariablesBody(const expressions::Variables &variabl
for (auto i = variables.cbegin(); i != variables.cend(); i++)
{
const auto &variable = **i;
if (i != variables.cbegin())
m_ostream << ", ";
const auto &variable = **i;
// Handle typed variables
if (variable.type() != nullptr)
{
if (variable.type()->expressionType() != Expression::Type::PrimitiveType)
@ -314,7 +316,9 @@ void TranslatorASP::translateVariablesBody(const expressions::Variables &variabl
m_ostream << "hasType(" << utils::escapeASPVariable(variable.name()) << ", type(" << type.name() << "))";
}
// TODO: handle untyped variables
// Allow any constant if typing is disabled
else
m_ostream << "constant(" << utils::escapeASPVariable(variable.name()) << ")";
}
}
@ -398,7 +402,7 @@ void TranslatorASP::translateProblem() const
if (!problem.objects().empty())
{
m_ostream << std::endl;
translateObjects();
translateConstants("objects", problem.objects());
}
// Initial State
@ -412,34 +416,6 @@ void TranslatorASP::translateProblem() const
////////////////////////////////////////////////////////////////////////////////////////////////////
void TranslatorASP::translateObjects() const
{
BOOST_ASSERT(m_description.containsProblem());
m_ostream << "% objects";
const auto &objects = m_description.problem().objects();
std::for_each(objects.cbegin(), objects.cend(),
[&](const auto &object)
{
m_ostream << std::endl;
const auto objectName = utils::escapeASP(object->name());
m_ostream << "constant(" << objectName << ")." << std::endl;
const auto *type = object->type();
if (type == nullptr)
return;
m_ostream << "hasType(constant(" << objectName << "), type(" << utils::escapeASP(type->name()) << "))." << std::endl;
});
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void TranslatorASP::translateInitialState() const
{
BOOST_ASSERT(m_description.containsProblem());