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// file : xsde/cxx/parser/state.ixx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
namespace xsde
{
namespace cxx
{
namespace parser
{
// stack
//
inline stack::
~stack ()
{
delete[] data_;
}
inline stack::
stack (size_t el_size, void* first_el)
: el_size_ (el_size), first_ (first_el),
data_ (0), size_ (0), capacity_ (0)
{
}
inline void stack::
pop ()
{
--size_;
}
inline stack::error stack::
push ()
{
if (size_ > capacity_)
if (error e = grow ())
return e;
++size_;
return error_none;
}
inline void* stack::
top ()
{
return size_ == 1 ? first_ : data_ + (size_ - 1) * el_size_;
}
inline size_t stack::
element_size () const
{
return el_size_;
}
inline void stack::
clear ()
{
size_ = 0;
}
// parser_stack
//
inline parser_stack::
parser_stack (parser_state& first)
: stack_ (sizeof (parser_state), &first)
{
}
inline stack::error parser_stack::
push (parser_state& s)
{
if (stack::error e = stack_.push ())
return e;
*static_cast<parser_state*> (stack_.top ()) = s;
return stack::error_none;
}
inline void parser_stack::
pop ()
{
stack_.pop ();
}
inline parser_state& parser_stack::
top ()
{
return *static_cast<parser_state*> (stack_.top ());
}
inline void parser_stack::
clear ()
{
stack_.clear ();
}
}
}
}
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