1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- S I N P U T . P -- 6-- -- 7-- S p e c -- 8-- -- 9-- Copyright (C) 1992-2010, Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 3, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- 17-- for more details. You should have received a copy of the GNU General -- 18-- Public License distributed with GNAT; see file COPYING3. If not, go to -- 19-- http://www.gnu.org/licenses for a complete copy of the license. -- 20-- -- 21-- GNAT was originally developed by the GNAT team at New York University. -- 22-- Extensive contributions were provided by Ada Core Technologies Inc. -- 23-- -- 24------------------------------------------------------------------------------ 25 26-- This child package contains the routines used to actually load a project 27-- file and create entries in the source file table. It also contains two 28-- routines to save and restore a project scan context. 29 30with Scans; use Scans; 31 32package Sinput.P is 33 34 procedure Clear_Source_File_Table; 35 -- This procedure frees memory allocated in the Source_File table (in the 36 -- private part of package Sinput). It should only be used when it is 37 -- guaranteed that all source files that have been loaded so far will not 38 -- be accessed before being reloaded. It is intended for tools that parse 39 -- several times sources, to avoid memory leaks. 40 41 function Load_Project_File (Path : String) return Source_File_Index; 42 -- Load the source of a project source file into memory and initialize the 43 -- Scans state. 44 45 procedure Reset_First; 46 -- Indicate that the next project loaded should be considered as the first 47 -- one, so that Sinput.Main_Source_File is set for this project file. This 48 -- is to get the correct number of lines when error finalization is called. 49 50 function Source_File_Is_Subunit (X : Source_File_Index) return Boolean; 51 -- This function determines if a source file represents a subunit. It works 52 -- by scanning for the first compilation unit token, and returning True if 53 -- it is the token SEPARATE. It will return False otherwise, meaning that 54 -- the file cannot possibly be a legal subunit. This function does NOT do a 55 -- complete parse of the file, or build a tree. It is used in gnatmake and 56 -- gprbuild to decide if a body without a spec in a project file needs to 57 -- be compiled or not. Returns False if X = No_Source_File. 58 59 type Saved_Project_Scan_State is limited private; 60 -- Used to save project scan state in following two routines 61 62 procedure Save_Project_Scan_State 63 (Saved_State : out Saved_Project_Scan_State); 64 pragma Inline (Save_Project_Scan_State); 65 -- Save the Scans state, as well as the values of Source and 66 -- Current_Source_File. 67 68 procedure Restore_Project_Scan_State 69 (Saved_State : Saved_Project_Scan_State); 70 pragma Inline (Restore_Project_Scan_State); 71 -- Restore the Scans state and the values of Source and 72 -- Current_Source_File. 73 74private 75 76 type Saved_Project_Scan_State is record 77 Scan_State : Saved_Scan_State; 78 Source : Source_Buffer_Ptr; 79 Current_Source_File : Source_File_Index; 80 end record; 81 82end Sinput.P; 83