| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- B U T I L -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2019, Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNAT; see file COPYING3. If not, go to -- |
| -- http://www.gnu.org/licenses for a complete copy of the license. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package contains utility routines for the binder |
| |
| with Namet; use Namet; |
| with Types; use Types; |
| |
| package Butil is |
| |
| function Is_Predefined_Unit return Boolean; |
| -- Given a unit name stored in Name_Buffer with length in Name_Len, |
| -- returns True if this is the name of a predefined unit or a child of |
| -- a predefined unit (including the obsolescent renamings). This is used |
| -- in the preference selection (see Better_Choice in body of Binde). |
| |
| function Is_Internal_Unit return Boolean; |
| -- Given a unit name stored in Name_Buffer with length in Name_Len, |
| -- returns True if this is the name of an internal unit or a child of |
| -- an internal unit. Similar in usage to Is_Predefined_Unit. |
| |
| -- Note: the following functions duplicate functionality in Uname, but |
| -- we want to avoid bringing Uname into the binder since it generates |
| -- to many unnecessary dependencies, and makes the binder too large. |
| |
| function Uname_Less (U1, U2 : Unit_Name_Type) return Boolean; |
| -- Determines if the unit name U1 is alphabetically before U2 |
| |
| procedure Write_Unit_Name (U : Unit_Name_Type); |
| -- Output unit name with (body) or (spec) after as required. On return |
| -- Name_Len is set to the number of characters which were output. |
| |
| --------------- |
| -- Iterators -- |
| --------------- |
| |
| -- The following type represents an iterator over all units that are |
| -- specified in the forced-elaboration-order file supplied by the binder |
| -- via switch -f. |
| |
| type Forced_Units_Iterator is private; |
| |
| function Has_Next (Iter : Forced_Units_Iterator) return Boolean; |
| pragma Inline (Has_Next); |
| -- Determine whether iterator Iter has more units to examine |
| |
| function Iterate_Forced_Units return Forced_Units_Iterator; |
| pragma Inline (Iterate_Forced_Units); |
| -- Obtain an iterator over all units in the forced-elaboration-order file |
| |
| procedure Next |
| (Iter : in out Forced_Units_Iterator; |
| Unit_Name : out Unit_Name_Type; |
| Unit_Line : out Logical_Line_Number); |
| pragma Inline (Next); |
| -- Return the current unit referenced by iterator Iter along with the |
| -- line number it appears on, and advance to the next available unit. |
| |
| private |
| First_Line_Number : constant Logical_Line_Number := No_Line_Number + 1; |
| |
| type Forced_Units_Iterator is record |
| Order : String_Ptr := null; |
| -- A reference to the contents of the forced-elaboration-order file, |
| -- read in as a string. |
| |
| Order_Index : Positive := 1; |
| -- Index into the order string |
| |
| Order_Line : Logical_Line_Number := First_Line_Number; |
| -- Logical line number within the order string |
| |
| Unit_Line : Logical_Line_Number := No_Line_Number; |
| -- The logical line number of the current unit name within the order |
| -- string. |
| |
| Unit_Name : Unit_Name_Type := No_Unit_Name; |
| -- The current unit name parsed from the order string |
| end record; |
| |
| end Butil; |
