$ // This file is part of NIT ( http://www.nitlanguage.org ).
$ //
$ // Copyright 2008 Jean Privat <jean@pryen.org>
$ // Based on algorithms developped for ( http://www.sablecc.org/ ).
$ //
$ // Licensed under the Apache License, Version 2.0 (the "License");
$ // you may not use this file except in compliance with the License.
$ // You may obtain a copy of the License at
$ //
$ //     http://www.apache.org/licenses/LICENSE-2.0
$ //
$ // Unless required by applicable law or agreed to in writing, software
$ // distributed under the License is distributed on an "AS IS" BASIS,
$ // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
$ // See the License for the specific language governing permissions and
$ // limitations under the License.

$ template make_parser()

redef class Parser
	redef fun build_reduce_table
	do
		_reduce_table = new Array[ReduceAction].with_items(
$ foreach {rules/rule}
			new ReduceAction@index(@leftside)[-sep ','-]
$ end foreach
		)
	end
end

$ foreach {rules/rule}
private class ReduceAction@index
	super ReduceAction
	redef fun action(p: Parser)
	do
					var node_list: nullable Object = null
$   foreach {action}
$   choose
$     when {@cmd='POP'}
					var ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} = p.pop
$     end
$     when {@cmd='FETCHLIST'}
					var ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} = ${translate(@from,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}
					assert ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} isa Array[Object]
$     end
$     when {@cmd='FETCHNODE'}
					var ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} = ${translate(@from,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}
					assert ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} isa nullable @etype
$     end
$     when {@cmd='ADDNODE'}
					if ${translate(@node,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} != null then
						${translate(@tolist,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}.add(${translate(@node,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")})
					end
$     end
$     when {@cmd='ADDLIST'}
					${translate(@tolist,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} = concat(${translate(@tolist,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}, ${translate(@fromlist,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")})
$     end
$     when {@cmd='MAKELIST'}
					var ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")} = new Array[Object]
$     end
$     when {@cmd='MAKENODE'}
$      if {count(arg)!=0}
					var ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}: nullable @etype = new @etype.init_${translate(@etype,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}(
$       foreach {arg}
$           if @null
						null[-sep ','-]
$           else
						${translate(.,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}[-sep ','-]
$           end
$       end foreach
					)
$      else
					var ${translate(@result,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}: nullable @etype = new @etype.init_${translate(@etype,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}
$      end
$     end
$     when {@cmd='RETURNNODE'}
$       if @null
					node_list = null
$       else
					node_list = ${translate(@node,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}
$       end
$     end
$     when {@cmd='RETURNLIST'}
					node_list = ${translate(@list,"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz")}
$     end
$   end choose
$   end foreach
					p.push(p.go_to(_goto), node_list)
	end
end
$ end foreach
$ end template

$ template make_parser_table()
$ foreach {parser_data/action_table/row}
static int parser_action_row${position()}[] = {
	${count(action)},
$   foreach {action}
	@from, @action, @to[-sep ','-]
$   end foreach
};
$ end foreach

const int* const parser_action_table[] = {
$ foreach {parser_data/action_table/row}
	parser_action_row${position()}[-sep ','-]
$ end foreach
};

$ foreach {parser_data/goto_table/row}
static int parser_goto_row${position()}[] = {
	${count(goto)},
$   foreach {goto}
	@from, @to[-sep ','-]
$   end foreach
};
$ end foreach

const int* const parser_goto_table[] = {
$ foreach {parser_data/goto_table/row}
	parser_goto_row${position()}[-sep ','-]
$ end foreach
};
$ end template