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Corrected grammar of initial state facts.

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This commit is contained in:
Patrick Lühne 2017-06-23 03:30:27 +02:00
parent 9360ad3487
commit 2851f8d286
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
5 changed files with 35 additions and 24 deletions
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3
lib/pddlparse/include/pddlparse/ASTForward.h
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@ -245,9 +245,8 @@ class Fact;
namespace detail
{
using FactT = Variant<
AtomicFormula,
AtPointer<Literal>,
NotPointer<Fact>>;
Literal>;
}
class Fact : public detail::FactT

2
lib/pddlparse/src/pddlparse/detail/parsing/Fact.cpp
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@ -37,7 +37,7 @@ std::experimental::optional<ast::Fact> parseFact(Context &context, ASTContext &a
// Now, test supported expressions
std::experimental::optional<ast::Fact> fact;
if ((fact = parseNot<ast::Fact>(context, astContext, variableStack, parseAtomicFormula))
if ((fact = parseNot<ast::AtomicFormula>(context, astContext, variableStack, parseAtomicFormula))
|| (fact = parseAtomicFormula(context, astContext, variableStack)))
{
return std::move(fact.value());

4
lib/pddlparse/tests/TestIssues.cpp
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@ -79,7 +79,9 @@ TEST_CASE("[PDDL parser issues] Check past issues", "[PDDL parser issues]")
{
return
fact.template is<pddl::ast::AtPointer<pddl::ast::Literal>>()
|| (fact.template is<pddl::ast::AtomicFormula>() && fact.template get<pddl::ast::AtomicFormula>().template is<pddl::ast::UnsupportedPointer>());
|| (fact.template is<pddl::ast::Literal>()
&& fact.template get<pddl::ast::Literal>().template is<pddl::ast::AtomicFormula>()
&& fact.template get<pddl::ast::Literal>().template get<pddl::ast::AtomicFormula>().template is<pddl::ast::UnsupportedPointer>());
});
const auto containsInvalidFact = (invalidFact != facts.cend());

6
lib/pddlparse/tests/TestOfficialPDDLInstances.cpp
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@ -143,17 +143,17 @@ TEST_CASE("[PDDL instances] The official PDDL instances are parsed correctly", "
const auto &facts = problem->initialState.facts;
REQUIRE(facts.size() == 9);
const auto &fact0 = facts[0].get<pddl::ast::AtomicFormula>().get<pddl::ast::PredicatePointer>();
const auto &fact0 = facts[0].get<pddl::ast::Literal>().get<pddl::ast::AtomicFormula>().get<pddl::ast::PredicatePointer>();
// TODO: check declaration once implemented
REQUIRE(fact0->arguments.size() == 1);
CHECK(fact0->arguments[0].get<pddl::ast::ConstantPointer>()->declaration->name == "c");
CHECK(fact0->arguments[0].get<pddl::ast::ConstantPointer>()->declaration->type.value().get<pddl::ast::PrimitiveTypePointer>()->declaration == typeBlock.get());
const auto &fact5 = facts[5].get<pddl::ast::AtomicFormula>().get<pddl::ast::PredicatePointer>();
const auto &fact5 = facts[5].get<pddl::ast::Literal>().get<pddl::ast::AtomicFormula>().get<pddl::ast::PredicatePointer>();
// TODO: check declaration once implemented
REQUIRE(fact5->arguments.size() == 1);
CHECK(fact5->arguments[0].get<pddl::ast::ConstantPointer>()->declaration->name == "a");
CHECK(fact5->arguments[0].get<pddl::ast::ConstantPointer>()->declaration->type.value().get<pddl::ast::PrimitiveTypePointer>()->declaration == typeBlock.get());
const auto &fact8 = facts[8].get<pddl::ast::AtomicFormula>().get<pddl::ast::PredicatePointer>();
const auto &fact8 = facts[8].get<pddl::ast::Literal>().get<pddl::ast::AtomicFormula>().get<pddl::ast::PredicatePointer>();
// TODO: check declaration once implemented
REQUIRE(fact8->arguments.empty());

44
src/plasp/pddl/TranslatorASP.cpp
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@ -289,31 +289,41 @@ void TranslatorASP::translateInitialState() const
const auto &facts = m_description.problem.value()->initialState.facts;
// TODO: move to separate header
for (const auto &fact : facts)
{
m_outputStream << std::endl << colorlog::Function("initialState") << "(";
// Translate single predicate
if (fact.is<::pddl::ast::AtomicFormula>() && fact.get<::pddl::ast::AtomicFormula>().is<::pddl::ast::PredicatePointer>())
{
const auto &predicate = fact.get<::pddl::ast::AtomicFormula>().get<::pddl::ast::PredicatePointer>();
const auto handleUnsupported =
[&](const auto &)
{
throw TranslatorException("only predicates and their negations supported in initial state currently");
};
translatePredicateToVariable(m_outputStream, *predicate, true);
}
// Assuming that "not" expression may only contain a predicate
else if (fact.is<::pddl::ast::NotPointer<::pddl::ast::Fact>>())
{
const auto &notExpression = fact.get<::pddl::ast::NotPointer<::pddl::ast::Fact>>();
const auto handleAtomicFormula =
[&](const ::pddl::ast::AtomicFormula &atomicFormula, bool isPositive = true)
{
if (!atomicFormula.is<::pddl::ast::PredicatePointer>())
handleUnsupported(atomicFormula);
if (!notExpression->argument.is<::pddl::ast::AtomicFormula>() || !notExpression->argument.get<::pddl::ast::AtomicFormula>().is<::pddl::ast::PredicatePointer>())
throw TranslatorException("only negations of simple predicates supported in initial state currently");
const auto &predicate = atomicFormula.get<::pddl::ast::PredicatePointer>();
const auto &predicate = notExpression->argument.get<::pddl::ast::AtomicFormula>().get<::pddl::ast::PredicatePointer>();
translatePredicateToVariable(m_outputStream, *predicate, isPositive);
};
translatePredicateToVariable(m_outputStream, *predicate, false);
}
else
throw TranslatorException("only predicates and their negations supported in initial state currently");
const auto handleNot =
[&](const ::pddl::ast::NotPointer<::pddl::ast::AtomicFormula> &not_)
{
handleAtomicFormula(not_->argument, false);
};
const auto handleLiteral =
[&](const ::pddl::ast::Literal &literal)
{
literal.match(handleAtomicFormula, handleNot);
};
fact.match(handleLiteral, handleUnsupported);
m_outputStream << ").";
}