Implemented parsing of PDDL constants.

This commit is contained in:
2016-06-01 16:47:34 +02:00
parent 3c97ced486
commit 25cf7c8ae8
9 changed files with 509 additions and 6 deletions

146
src/plasp/pddl/Constant.cpp Normal file
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@@ -0,0 +1,146 @@
#include <plasp/pddl/Constant.h>
#include <algorithm>
#include <plasp/pddl/Context.h>
#include <plasp/pddl/Identifier.h>
namespace plasp
{
namespace pddl
{
////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Constant
//
////////////////////////////////////////////////////////////////////////////////////////////////////
Constant::Constant(std::string name)
: m_isDirty{false},
m_isDeclared{false},
m_name(name),
m_type{nullptr}
{
}
////////////////////////////////////////////////////////////////////////////////////////////////////
Constant &Constant::parse(utils::Parser &parser, Context &context)
{
parser.skipWhiteSpace();
const auto constantName = parser.parseIdentifier(isIdentifier);
const auto match = context.constantsHashMap.find(constantName);
const auto constantExists = (match != context.constantsHashMap.cend());
// Return existing primitive types
if (constantExists)
{
auto &constant = *match->second;
constant.setDirty();
return constant;
}
// Store new primitive type
context.constants.emplace_back(std::make_unique<Constant>(Constant(constantName)));
auto &constant = *context.constants.back();
// Add a pointer to the primitive type to the hash map
context.constantsHashMap.emplace(std::make_pair(constantName, &constant));
// Flag type for potentially upcoming parent type declaration
constant.setDirty();
return constant;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
Constant &Constant::parseDeclaration(utils::Parser &parser, Context &context)
{
// Parse and store constant
auto &constant = parse(parser, context);
// Flag constant as correctly declared in the types section
constant.setDeclared();
parser.skipWhiteSpace();
// Check for typing information
if (!parser.advanceIf('-'))
return constant;
// If existing, parse and store parent type
auto &type = PrimitiveType::parse(parser, context);
// Assign parent type to all types that were previously flagged
std::for_each(context.constants.begin(), context.constants.end(),
[&](auto &constant)
{
if (!constant->isDirty())
return;
constant->setType(&type);
constant->setDirty(false);
});
return constant;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void Constant::setDirty(bool isDirty)
{
m_isDirty = isDirty;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
bool Constant::isDirty() const
{
return m_isDirty;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void Constant::setDeclared()
{
m_isDeclared = true;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
bool Constant::isDeclared() const
{
return m_isDeclared;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
const std::string &Constant::name() const
{
return m_name;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void Constant::setType(const PrimitiveType *type)
{
m_type = type;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
const PrimitiveType *Constant::type() const
{
return m_type;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
}
}

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@@ -74,6 +74,13 @@ const std::vector<std::unique_ptr<PrimitiveType>> &Domain::types() const
////////////////////////////////////////////////////////////////////////////////////////////////////
const std::vector<std::unique_ptr<Constant>> &Domain::constants() const
{
return m_context.constants;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
const std::vector<std::unique_ptr<Predicate>> &Domain::predicates() const
{
return m_context.predicates;
@@ -116,7 +123,7 @@ void Domain::parseSection(utils::Parser &parser)
else if (sectionIdentifier == "types")
parseTypeSection(parser);
else if (sectionIdentifier == "constants")
skipSection();
parseConstantSection(parser);
else if (sectionIdentifier == "predicates")
parsePredicateSection(parser);
else if (sectionIdentifier == "functions")
@@ -125,6 +132,10 @@ void Domain::parseSection(utils::Parser &parser)
skipSection();
else if (sectionIdentifier == "action")
skipSection();
else if (sectionIdentifier == "durative-action")
skipSection();
else if (sectionIdentifier == "derived")
skipSection();
}
////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -228,6 +239,23 @@ void Domain::parseTypeSection(utils::Parser &parser)
////////////////////////////////////////////////////////////////////////////////////////////////////
void Domain::parseConstantSection(utils::Parser &parser)
{
parser.skipWhiteSpace();
// Store constants
while (parser.currentCharacter() != ')')
{
Constant::parseDeclaration(parser, m_context);
parser.skipWhiteSpace();
}
parser.expect<std::string>(")");
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void Domain::parsePredicateSection(utils::Parser &parser)
{
parser.skipWhiteSpace();
@@ -263,6 +291,17 @@ void Domain::checkConsistency()
throw ConsistencyException("Type \"" + type->name() + "\" used but never declared");
});
// Verify that all used constants have been declared
std::for_each(m_context.constants.cbegin(), m_context.constants.cend(),
[&](const auto &constant)
{
if (!constant->isDeclared())
throw ConsistencyException("Constant \"" + constant->name() + "\" used but never declared");
if (constant->type() == nullptr)
throw ConsistencyException("Constant \"" + constant->name() + "\" has an undeclared type");
});
// Verify that all used predicates have been declared
std::for_each(m_context.predicates.cbegin(), m_context.predicates.cend(),
[&](const auto &predicate)

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@@ -89,7 +89,7 @@ PrimitiveType &PrimitiveType::parseDeclaration(utils::Parser &parser, Context &c
if (!childType->isDirty())
return;
childType->addParentType(parentType);
childType->addParentType(&parentType);
childType->setDirty(false);
});
@@ -133,9 +133,9 @@ const std::string &PrimitiveType::name() const
////////////////////////////////////////////////////////////////////////////////////////////////////
void PrimitiveType::addParentType(const PrimitiveType &parentType)
void PrimitiveType::addParentType(const PrimitiveType *parentType)
{
m_parentTypes.emplace_back(&parentType);
m_parentTypes.push_back(parentType);
}
////////////////////////////////////////////////////////////////////////////////////////////////////