indexing
	description: 
		"AST representation list of tagged_as structures."
	date: "$Date$"
	revision: "$Revision $"

class
	ASSERT_LIST_AS

inherit
	AST_EIFFEL
		redefine
			is_equivalent
		end

feature {AST_FACTORY} -- Initialization

	initialize (a: like assertions) is
			-- Create a new ASSERTION_LIST AST node.
		do
			assertions := a
		ensure
			assertions_set: assertions = a
		end

feature -- Visitor

	process (v: AST_VISITOR) is
			-- process current element.
		do
			v.process_assert_list_as (Current)
		end

feature -- Attributes

	assertions: EIFFEL_LIST [TAGGED_AS];
			-- Assertion list

feature -- Comparison

	is_equivalent (other: like Current): BOOLEAN is
			-- Is `other' equivalent to the current object ?
		do
			Result := equivalent (assertions, other.assertions)
		end

feature -- Access

	has_assertion (a: TAGGED_AS): BOOLEAN is
			-- Does current list have assertion `a'?
		local
			cur: CURSOR
		do
			cur := assertions.cursor
	
			from 
				assertions.start
			until
				assertions.after or else Result
			loop
				Result := assertions.item.is_equiv (a)
				assertions.forth
			end

			assertions.go_to (cur)
		end

--feature {AST_EIFFEL} -- Output
--
--	simple_format (ctxt: FORMAT_CONTEXT) is
--			-- Reconstitute text.
--		do
--			if assertions /= void then
--				simple_put_clause_keywords (ctxt);
--				ctxt.new_line;
--				ctxt.set_new_line_between_tokens;
--				ctxt.indent;
--				simple_format_assertions (ctxt);
--				ctxt.exdent;
--			end
--		end

--	simple_format_assertions (ctxt: FORMAT_CONTEXT) is
--			-- Format assertions.
--		local
--			i, l_count: INTEGER;
--			not_first: BOOLEAN
--		do
--			ctxt.begin;
--			from
--				i := 1;
--				l_count := assertions.count;
--			until
--				i > l_count
--			loop
--				if not_first then
--					ctxt.put_separator;
--				end
--				ctxt.new_expression;
--				ctxt.begin;
--				assertions.i_th (i).simple_format(ctxt);
--				ctxt.commit;
--				not_first := True
--				i := i + 1
--			end
--			if l_count > 0 then
--				ctxt.new_line
--			end
--			ctxt.commit;
--		end

feature {ASSERT_LIST_AS} -- Replication

	set_assertions (l: like assertions) is
		do
			assertions := l
		end

end -- class ASSERT_LIST_AS