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//
//
//
#include <iostream>
#include "hir_sim.hpp"
#include "module_tree.hpp"
#include "debug.hpp"
//::HIR::Path::Path(::HIR::SimplePath sp)
//{
//}
size_t HIR::TypeRef::get_size(size_t ofs) const
{
if( this->wrappers.size() <= ofs )
{
switch(this->inner_type)
{
case RawType::Unit:
return 0;
case RawType::Composite:
return this->composite_type->size;
case RawType::Unreachable:
LOG_BUG("Attempting to get size of an unreachable type, " << *this);
case RawType::TraitObject:
case RawType::Str:
LOG_BUG("Attempting to get size of an unsized type, " << *this);
case RawType::U8: case RawType::I8:
return 1;
case RawType::U16: case RawType::I16:
return 2;
case RawType::U32: case RawType::I32:
return 4;
case RawType::U64: case RawType::I64:
return 8;
case RawType::U128: case RawType::I128:
return 16;
case RawType::Bool:
return 1;
case RawType::Char:
return 4;
case RawType::F32:
return 4;
case RawType::F64:
return 8;
case RawType::Function: // This should probably be invalid?
case RawType::USize: case RawType::ISize:
return POINTER_SIZE;
}
throw "";
}
switch(this->wrappers[ofs].type)
{
case TypeWrapper::Ty::Array:
return this->get_size(1) * this->wrappers[ofs].size;
case TypeWrapper::Ty::Borrow:
case TypeWrapper::Ty::Pointer:
if( this->wrappers.size() == ofs+1 )
{
// Need to look up the metadata type for the actual type
if( this->inner_type == RawType::Composite )
{
if( this->composite_type->dst_meta == RawType::Unreachable )
{
return POINTER_SIZE;
}
// Special case: extern types (which appear when a type is only ever used by pointer)
if( this->composite_type->dst_meta == RawType::Unit )
{
return POINTER_SIZE;
}
// TODO: Ideally, this inner type wouldn't be unsized itself... but checking that would be interesting.
return POINTER_SIZE + this->composite_type->dst_meta.get_size();
}
else if( this->inner_type == RawType::Str )
return POINTER_SIZE*2;
else if( this->inner_type == RawType::TraitObject )
return POINTER_SIZE*2;
else
{
return POINTER_SIZE;
}
}
else if( this->wrappers[ofs+1].type == TypeWrapper::Ty::Slice )
{
return POINTER_SIZE*2;
}
else
{
return POINTER_SIZE;
}
case TypeWrapper::Ty::Slice:
LOG_BUG("Getting size of a slice - " << *this);
}
throw "";
}
bool HIR::TypeRef::has_slice_meta() const
{
if( this->wrappers.size() == 0 )
{
if(this->inner_type == RawType::Composite)
{
// TODO: Handle metadata better
return false;
}
else
{
return (this->inner_type == RawType::Str);
}
}
else
{
return (this->wrappers[0].type == TypeWrapper::Ty::Slice);
}
}
HIR::TypeRef HIR::TypeRef::get_inner() const
{
if( this->wrappers.empty() )
{
throw "ERROR";
}
auto ity = *this;
ity.wrappers.erase(ity.wrappers.begin());
return ity;
}
HIR::TypeRef HIR::TypeRef::wrap(TypeWrapper::Ty ty, size_t size) const
{
auto rv = *this;
rv.wrappers.insert(rv.wrappers.begin(), { ty, size });
return rv;
}
const HIR::TypeRef* HIR::TypeRef::get_usized_type(size_t& running_inner_size) const
{
if( this->wrappers.empty() )
{
switch(this->inner_type)
{
case RawType::Composite:
if(!this->composite_type->variants.empty())
return nullptr;
if(this->composite_type->fields.empty())
return nullptr;
running_inner_size = this->composite_type->fields.back().first;
size_t tmp;
return this->composite_type->fields.back().second.get_usized_type(tmp);
case RawType::TraitObject:
case RawType::Str:
return this;
default:
return nullptr;
}
}
else if( this->wrappers[0].type == TypeWrapper::Ty::Slice )
{
return this;
}
else
{
return nullptr;
}
}
HIR::TypeRef HIR::TypeRef::get_meta_type() const
{
if( this->wrappers.empty() )
{
switch(this->inner_type)
{
case RawType::Composite:
if( this->composite_type->dst_meta == RawType::Unreachable )
return TypeRef(RawType::Unreachable);
return this->composite_type->dst_meta;
case RawType::TraitObject: {
auto rv = ::HIR::TypeRef( this->composite_type );
rv.wrappers.push_back(TypeWrapper { TypeWrapper::Ty::Pointer, static_cast<size_t>(BorrowType::Shared) });
return rv;
}
case RawType::Str:
return TypeRef(RawType::USize);
default:
return TypeRef(RawType::Unreachable);
}
}
else if( this->wrappers[0].type == TypeWrapper::Ty::Slice )
{
return TypeRef(RawType::USize);
}
else
{
return TypeRef(RawType::Unreachable);
}
}
HIR::TypeRef HIR::TypeRef::get_field(size_t idx, size_t& ofs) const
{
if( this->wrappers.empty() )
{
if( this->inner_type == RawType::Composite )
{
LOG_ASSERT(idx < this->composite_type->fields.size(), "Field " << idx << " out of bounds in type " << *this);
ofs = this->composite_type->fields.at(idx).first;
return this->composite_type->fields.at(idx).second;
}
else
{
::std::cerr << *this << " doesn't have fields" << ::std::endl;
throw "ERROR";
}
}
else if( this->wrappers.front().type == TypeWrapper::Ty::Slice )
{
// TODO
throw "TODO";
}
else if( this->wrappers.front().type == TypeWrapper::Ty::Array )
{
auto ity = this->get_inner();
ofs = ity.get_size() * idx;
return ity;
}
else
{
throw "ERROR";
}
}
size_t HIR::TypeRef::get_field_ofs(size_t base_idx, const ::std::vector<size_t>& other_idx, TypeRef& ty) const
{
assert(this->wrappers.size() == 0);
assert(this->inner_type == RawType::Composite);
size_t ofs = this->composite_type->fields.at(base_idx).first;
const auto* ty_p = &this->composite_type->fields.at(base_idx).second;
for(auto idx : other_idx)
{
assert(ty_p->wrappers.size() == 0);
assert(ty_p->inner_type == RawType::Composite);
ofs += ty_p->composite_type->fields.at(idx).first;
ty_p = &ty_p->composite_type->fields.at(idx).second;
}
ty = *ty_p;
return ofs;
}
namespace HIR {
::std::ostream& operator<<(::std::ostream& os, const ::HIR::BorrowType& x)
{
switch(x)
{
case ::HIR::BorrowType::Move: os << "Move"; break;
case ::HIR::BorrowType::Unique: os << "Unique"; break;
case ::HIR::BorrowType::Shared: os << "Shared"; break;
}
return os;
}
::std::ostream& operator<<(::std::ostream& os, const ::HIR::TypeRef& x)
{
for(auto it = x.wrappers.begin(); it != x.wrappers.end(); ++it)
{
switch(it->type)
{
case TypeWrapper::Ty::Array:
case TypeWrapper::Ty::Slice:
os << "[";
break;
case TypeWrapper::Ty::Pointer:
os << "*";
switch(it->size)
{
case 2: os << "move "; break;
case 1: os << "mut "; break;
case 0: os << "const "; break;
default:
break;
}
break;
case TypeWrapper::Ty::Borrow:
os << "&";
switch(it->size)
{
case 2: os << "move "; break;
case 1: os << "mut "; break;
case 0: os << ""; break;
default:
break;
}
break;
}
}
switch(x.inner_type)
{
case RawType::Unit:
os << "()";
break;
case RawType::Composite:
os << x.composite_type->my_path;
//os << "composite_" << x.composite_type;
break;
case RawType::Unreachable:
os << "!";
break;
case RawType::Function:
os << "function_?";
break;
case RawType::TraitObject:
os << "dyn ";
if( x.composite_type )
os << x.composite_type->my_path;
else
os << "?";
break;
case RawType::Bool: os << "bool"; break;
case RawType::Char: os << "char"; break;
case RawType::Str: os << "str"; break;
case RawType::U8: os << "u8"; break;
case RawType::I8: os << "i8"; break;
case RawType::U16: os << "u16"; break;
case RawType::I16: os << "i16"; break;
case RawType::U32: os << "u32"; break;
case RawType::I32: os << "i32"; break;
case RawType::U64: os << "u64"; break;
case RawType::I64: os << "i64"; break;
case RawType::U128: os << "u128"; break;
case RawType::I128: os << "i128"; break;
case RawType::USize: os << "usize"; break;
case RawType::ISize: os << "isize"; break;
case RawType::F32: os << "f32"; break;
case RawType::F64: os << "f64"; break;
}
for(auto it = x.wrappers.rbegin(); it != x.wrappers.rend(); ++it)
{
switch(it->type)
{
case TypeWrapper::Ty::Array:
os << ";" << it->size;
case TypeWrapper::Ty::Slice:
os << "]";
break;
case TypeWrapper::Ty::Pointer:
case TypeWrapper::Ty::Borrow:
break;
}
}
return os;
}
::std::ostream& operator<<(::std::ostream& os, const SimplePath& x)
{
os << "::\"" << x.crate_name << "\"";
for(const auto& e : x.ents)
{
os << "::" << e;
}
return os;
}
::std::ostream& operator<<(::std::ostream& os, const ::HIR::PathParams& x)
{
if( !x.tys.empty() )
{
os << "<";
for(const auto& t : x.tys)
os << t << ",";
os << ">";
}
return os;
}
::std::ostream& operator<<(::std::ostream& os, const GenericPath& x)
{
os << x.m_simplepath;
os << x.m_params;
return os;
}
::std::ostream& operator<<(::std::ostream& os, const ::HIR::Path& x)
{
if( x.m_name == "" )
{
os << x.m_trait;
}
else
{
os << "<" << x.m_type;
if( x.m_trait != ::HIR::GenericPath() )
{
os << " as " << x.m_trait;
}
os << ">::" << x.m_name << x.m_params;
}
return os;
}
}
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