------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- R E P I N F O - I N P U T -- -- -- -- S p e c -- -- -- -- Copyright (C) 2018-2019, 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. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package provides an alternate way of populating the internal tables -- of Repinfo from a JSON input rather than the binary blob of the tree file. -- Note that this is an additive mechanism, i.e. nothing is destroyed in the -- internal state of the unit when it is used. -- The first step is to feed the unit with a JSON stream of a specified format -- (see the spec of Repinfo for its description) by means of Read_JSON_Stream. -- Then, for each entity whose representation information is present in the -- JSON stream, the appropriate Get_JSON_* routines can be invoked to override -- the eponymous fields of the entity in the tree. package Repinfo.Input is function Get_JSON_Esize (Name : String) return Node_Ref_Or_Val; -- Returns the Esize value of the entity specified by Name, which is not -- the component of a record type, or else No_Uint if no representation -- information was supplied for the entity. Name is the full qualified name -- of the entity in lower case letters. function Get_JSON_RM_Size (Name : String) return Node_Ref_Or_Val; -- Likewise for the RM_Size function Get_JSON_Component_Size (Name : String) return Node_Ref_Or_Val; -- Likewise for the Component_Size of an array type function Get_JSON_Component_Bit_Offset (Name : String; Record_Name : String) return Node_Ref_Or_Val; -- Returns the Component_Bit_Offset of the component specified by Name, -- which is declared in the record type specified by Record_Name, or else -- No_Uint if no representation information was supplied for the component. -- Name is the unqualified name of the component whereas Record_Name is the -- full qualified name of the record type, both in lower case letters. function Get_JSON_Esize (Name : String; Record_Name : String) return Node_Ref_Or_Val; -- Likewise for the Esize Invalid_JSON_Stream : exception; -- Raised if a format error is detected in the JSON stream procedure Read_JSON_Stream (Text : Text_Buffer; File_Name : String); -- Reads a JSON stream and populates internal tables from it. File_Name is -- only used in error messages issued by the JSON parser. end Repinfo.Input;