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#ifndef AST_HPP_INCLUDED
#define AST_HPP_INCLUDED
#include <string>
#include <vector>
#include <stdexcept>
#include "../coretypes.hpp"
#include <memory>
#include "../types.hpp"
namespace AST {
using ::std::unique_ptr;
using ::std::move;
class Crate;
class MetaItem
{
::std::string m_name;
::std::vector<MetaItem> m_items;
::std::string m_str_val;
public:
MetaItem(::std::string name):
m_name(name)
{
}
MetaItem(::std::string name, ::std::vector<MetaItem> items):
m_name(name),
m_items(items)
{
}
};
class ExprNode;
class Pattern
{
enum BindType {
MAYBE_BIND,
VALUE,
TUPLE,
TUPLE_STRUCT,
};
BindType m_class;
Path m_path;
unique_ptr<ExprNode> m_node;
::std::vector<Pattern> m_sub_patterns;
public:
Pattern();
struct TagMaybeBind {};
Pattern(TagMaybeBind, ::std::string name):
m_class(MAYBE_BIND),
m_path(Path::TagLocal(), name)
{}
struct TagValue {};
Pattern(TagValue, unique_ptr<ExprNode> node):
m_class(VALUE),
m_node( ::std::move(node) )
{}
struct TagTuple {};
Pattern(TagTuple, ::std::vector<Pattern> sub_patterns):
m_class(TUPLE),
m_sub_patterns( ::std::move(sub_patterns) )
{}
struct TagEnumVariant {};
Pattern(TagEnumVariant, Path path, ::std::vector<Pattern> sub_patterns):
m_class(TUPLE_STRUCT),
m_path( ::std::move(path) ),
m_sub_patterns( ::std::move(sub_patterns) )
{}
friend ::std::ostream& operator<<(::std::ostream& os, const Pattern& pat);
};
#include "ast_expr.hpp"
class Expr
{
::std::shared_ptr<ExprNode> m_node;
public:
Expr(unique_ptr<ExprNode> node):
m_node(node.release())
{
}
Expr(ExprNode* node):
m_node(node)
{
}
void visit_nodes(NodeVisitor& v);
friend ::std::ostream& operator<<(::std::ostream& os, const Expr& pat);
};
class Function
{
public:
enum Class
{
CLASS_UNBOUND,
CLASS_REFMETHOD,
CLASS_MUTMETHOD,
CLASS_VALMETHOD,
};
typedef ::std::vector<StructItem> Arglist;
private:
::std::string m_name;
TypeParams m_generic_params;
Class m_fcn_class;
Expr m_code;
TypeRef m_rettype;
Arglist m_args;
public:
Function(::std::string name, TypeParams params, Class fcn_class, TypeRef ret_type, Arglist args, Expr code):
m_name(name),
m_generic_params(params),
m_fcn_class(fcn_class),
m_code(code),
m_rettype(ret_type),
m_args(args)
{
}
const ::std::string& name() const { return m_name; }
TypeParams& generic_params() { return m_generic_params; }
const TypeParams& generic_params() const { return m_generic_params; }
Expr& code() { return m_code; }
const Expr& code() const { return m_code; }
const TypeRef& rettype() const { return m_rettype; }
TypeRef& rettype() { return m_rettype; }
const Arglist& args() const { return m_args; }
Arglist& args() { return m_args; }
};
class Impl
{
public:
Impl(TypeRef impl_type, TypeRef trait_type);
void add_function(bool is_public, Function fcn);
};
class Module;
typedef void fcn_visitor_t(const AST::Crate& crate, const AST::Module& mod, Function& fcn);
class Module
{
::std::vector< ::std::pair<Function,bool> > m_functions;
public:
void add_alias(bool is_public, Path path) {}
void add_constant(bool is_public, ::std::string name, TypeRef type, Expr val);
void add_global(bool is_public, bool is_mut, ::std::string name, TypeRef type, Expr val);
void add_struct(bool is_public, ::std::string name, TypeParams params, ::std::vector<StructItem> items);
void add_function(bool is_public, Function func);
void add_impl(Impl impl);
void iterate_functions(fcn_visitor_t* visitor, const Crate& crate);
};
class Crate
{
Module m_root_module;
public:
Crate(Module root_module):
m_root_module(root_module)
{
}
void iterate_functions( fcn_visitor_t* visitor );
};
class CStruct
{
::std::vector<StructItem> m_fields;
public:
const char* name() const { return "TODO"; }
const char* mangled_name() const { return "TODO"; }
const ::std::vector<StructItem>& fields() const { return m_fields; }
};
class Flat
{
::std::vector<CStruct> m_structs;
::std::vector<Function> m_functions;
public:
const ::std::vector<Function>& functions() const { return m_functions; }
const ::std::vector<CStruct>& structs() const { return m_structs; }
};
}
#endif // AST_HPP_INCLUDED
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