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Diffstat (limited to 'gcc/ada/sinput-p.ads')
| -rw-r--r-- | gcc/ada/sinput-p.ads | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/gcc/ada/sinput-p.ads b/gcc/ada/sinput-p.ads new file mode 100644 index 000000000..112a6f7d5 --- /dev/null +++ b/gcc/ada/sinput-p.ads @@ -0,0 +1,82 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- S I N P U T . P -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 1992-2010, 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 child package contains the routines used to actually load a project +-- file and create entries in the source file table. It also contains two +-- routines to save and restore a project scan context. + +with Scans; use Scans; + +package Sinput.P is + + procedure Clear_Source_File_Table; + -- This procedure frees memory allocated in the Source_File table (in the + -- private part of package Sinput). It should only be used when it is + -- guaranteed that all source files that have been loaded so far will not + -- be accessed before being reloaded. It is intended for tools that parse + -- several times sources, to avoid memory leaks. + + function Load_Project_File (Path : String) return Source_File_Index; + -- Load the source of a project source file into memory and initialize the + -- Scans state. + + procedure Reset_First; + -- Indicate that the next project loaded should be considered as the first + -- one, so that Sinput.Main_Source_File is set for this project file. This + -- is to get the correct number of lines when error finalization is called. + + function Source_File_Is_Subunit (X : Source_File_Index) return Boolean; + -- This function determines if a source file represents a subunit. It works + -- by scanning for the first compilation unit token, and returning True if + -- it is the token SEPARATE. It will return False otherwise, meaning that + -- the file cannot possibly be a legal subunit. This function does NOT do a + -- complete parse of the file, or build a tree. It is used in gnatmake and + -- gprbuild to decide if a body without a spec in a project file needs to + -- be compiled or not. Returns False if X = No_Source_File. + + type Saved_Project_Scan_State is limited private; + -- Used to save project scan state in following two routines + + procedure Save_Project_Scan_State + (Saved_State : out Saved_Project_Scan_State); + pragma Inline (Save_Project_Scan_State); + -- Save the Scans state, as well as the values of Source and + -- Current_Source_File. + + procedure Restore_Project_Scan_State + (Saved_State : Saved_Project_Scan_State); + pragma Inline (Restore_Project_Scan_State); + -- Restore the Scans state and the values of Source and + -- Current_Source_File. + +private + + type Saved_Project_Scan_State is record + Scan_State : Saved_Scan_State; + Source : Source_Buffer_Ptr; + Current_Source_File : Source_File_Index; + end record; + +end Sinput.P; |