Forward furc ast

Signed-off-by: CHatingPython <chatingpython@gmail.com>

furc/include/furc/ast/declaration.hpp

@@ -27,8 +27,6 @@ protected:
     bool equal(const node& rhs) const override;
 };
 
-using declaration_node_h = node_handle<declaration_node>;
-
 class function_declaration_node : public declaration_node {
 public:
     function_declaration_node(front::token name)
@@ -45,8 +43,6 @@ protected:
     front::token m_name;
 };
 
-using function_declaration_node_h = node_handle<function_declaration_node>;
-
 struct function_body {
     location                                 begin, end;
     std::vector<node_handle<statement_node>> statements;
@@ -76,8 +72,6 @@ private:
     function_body_h m_body;
 };
 
-using function_definition_node_h = node_handle<function_definition_node>;
-
 } // namespace ast
 } // namespace furc
 

furc/include/furc/ast/expression.hpp

@@ -27,8 +27,6 @@ protected:
     bool equal(const node& rhs) const override;
 };
 
-using expression_node_h = node_handle<expression_node>;
-
 class var_read_expression_node : public expression_node {
 public:
     var_read_expression_node(handle<std::string_view>&& name)
@@ -46,8 +44,6 @@ private:
     handle<std::string_view> m_name;
 };
 
-using var_read_expression_node_h = node_handle<var_read_expression_node>;
-
 enum class unaryop_expression_node_t {
     Positive,
     Negative,
@@ -79,8 +75,6 @@ private:
     expression_node_h         m_node;
 };
 
-using unaryop_expression_node_h = node_handle<unaryop_expression_node>;
-
 enum class binop_expression_node_t {
     None = 0,
     Add,
@@ -121,8 +115,6 @@ private:
     expression_node_h       m_rhs;
 };
 
-using binop_expression_node_h = node_handle<binop_expression_node>;
-
 class var_assign_expression_node : public expression_node {
 public:
     var_assign_expression_node(expression_node_h&& lhs, expression_node_h&& rhs)
@@ -146,8 +138,6 @@ private:
     expression_node_h       m_rhs;
 };
 
-using var_assign_expression_node_h = node_handle<var_assign_expression_node>;
-
 } // namespace ast
 } // namespace furc
 

furc/include/furc/ast/fwd.hpp

@@ -0,0 +1,52 @@
+#ifndef FURC_AST_FWD_HPP
+#define FURC_AST_FWD_HPP
+
+#include "furc/handle.hpp"
+
+#include <string>
+
+namespace furc {
+namespace ast {
+
+class node;
+
+template <typename T, typename Error = std::string>
+using node_handle = handle<T*, Error>;
+
+class literal_node;
+using literal_node_h = node_handle<literal_node>;
+class expression_node;
+using expression_node_h = node_handle<expression_node>;
+class declaration_node;
+using declaration_node_h = node_handle<declaration_node>;
+class statement_node;
+using statement_node_h = node_handle<statement_node>;
+class program_node;
+using program_node_h = node_handle<program_node>;
+
+class string_literal_node;
+using string_literal_node_h = node_handle<string_literal_node>;
+class integer_literal_node;
+using integer_literal_node_h = node_handle<integer_literal_node>;
+
+class var_read_expression_node;
+using var_read_expression_node_h = node_handle<var_read_expression_node>;
+class unaryop_expression_node;
+using unaryop_expression_node_h = node_handle<unaryop_expression_node>;
+class binop_expression_node;
+using binop_expression_node_h = node_handle<binop_expression_node>;
+class var_assign_expression_node;
+using var_assign_expression_node_h = node_handle<var_assign_expression_node>;
+
+class function_declaration_node;
+using function_declaration_node_h = node_handle<function_declaration_node>;
+class function_definition_node;
+using function_definition_node_h = node_handle<function_definition_node>;
+
+class return_statement_node;
+using return_statement_node_h = node_handle<return_statement_node>;
+
+} // namespace ast
+} // namespace furc
+
+#endif // FURC_AST_FWD_HPP

furc/include/furc/ast/literal.hpp

@@ -24,8 +24,6 @@ protected:
     bool equal(const node& rhs) const override;
 };
 
-using literal_node_h = node_handle<literal_node>;
-
 class string_literal_node : public literal_node {
 public:
     string_literal_node(handle<std::string_view>&& value)
@@ -42,8 +40,6 @@ private:
     handle<std::string_view> m_value;
 };
 
-using string_literal_node_h = node_handle<string_literal_node>;
-
 class integer_literal_node : public literal_node {
 public:
     integer_literal_node(handle<front::integer_token>&& value)
@@ -62,8 +58,6 @@ private:
     handle<front::integer_token> m_value;
 };
 
-using integer_literal_node_h = node_handle<integer_literal_node>;
-
 } // namespace ast
 } // namespace furc
 

furc/include/furc/ast/node.hpp

@@ -1,9 +1,7 @@
 #ifndef FURC_AST_NODE_HPP
 #define FURC_AST_NODE_HPP
 
-#include "furc/handle.hpp"
-
-#include <string>
+#include "furc/ast/fwd.hpp"
 
 namespace furc {
 namespace ast {
@@ -48,9 +46,6 @@ protected:
     virtual bool equal(const node& rhs) const = 0;
 };
 
-template <typename T, typename Error = std::string>
-using node_handle = handle<T*, Error>;
-
 } // namespace ast
 } // namespace furc
 

furc/include/furc/ast/program.hpp

@@ -26,8 +26,6 @@ private:
     std::vector<node_handle<declaration_node>> m_declarations;
 };
 
-using program_node_h = node_handle<program_node>;
-
 } // namespace ast
 } // namespace furc
 

furc/include/furc/ast/statement.hpp

@@ -21,9 +21,6 @@ protected:
     bool equal(const node& rhs) const override;
 };
 
-using statement_node_h = node_handle<statement_node>;
-
-class expression_node;
 class return_statement_node : public statement_node {
 public:
     return_statement_node() = default;
@@ -42,8 +39,6 @@ private:
     node_handle<expression_node> m_value;
 };
 
-using return_statement_node_h = node_handle<return_statement_node>;
-
 } // namespace ast
 } // namespace furc