# Visit and fill information about a signature
	private fun visit_signature(modelbuilder: ModelBuilder, mclassdef: MClassDef): Bool
	do
		var param_names = self.param_names
		var param_types = self.param_types
		for np in self.n_params do
			param_names.add(np.n_id.text)
			var ntype = np.n_type
			if ntype != null then
				var mtype = modelbuilder.resolve_mtype_unchecked(mclassdef, ntype, true)
				if mtype == null then return false # Skip error
				for i in [0..param_names.length-param_types.length[ do
					param_types.add(mtype)
				end
				if np.n_dotdotdot != null then
					if self.vararg_rank != -1 then
						modelbuilder.error(np, "Error: `{param_names[self.vararg_rank]}` is already a vararg")
						return false
					else
						self.vararg_rank = param_names.length - 1
					end
				end
			end
		end
		var ntype = self.n_type
		if ntype != null then
			self.ret_type = modelbuilder.resolve_mtype_unchecked(mclassdef, ntype, true)
			if self.ret_type == null then return false # Skip error
		end

		self.is_visited = true
		return true
	end