+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT COMPILER COMPONENTS --
--- --
--- E X P _ C H 1 1 --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1992-2000 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 2, 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 COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- Expand routines for chapter 11 constructs
-
-with Types; use Types;
-
-package Exp_Ch11 is
- procedure Expand_N_Exception_Declaration (N : Node_Id);
- procedure Expand_N_Handled_Sequence_Of_Statements (N : Node_Id);
- procedure Expand_N_Raise_Constraint_Error (N : Node_Id);
- procedure Expand_N_Raise_Program_Error (N : Node_Id);
- procedure Expand_N_Raise_Statement (N : Node_Id);
- procedure Expand_N_Raise_Storage_Error (N : Node_Id);
- procedure Expand_N_Subprogram_Info (N : Node_Id);
-
- -- Data structures for gathering information to build exception tables
- -- See runtime routine Ada.Exceptions for full details on the format and
- -- content of these tables.
-
- procedure Initialize;
- -- Initializes these data structures for a new main unit file
-
- procedure Expand_At_End_Handler (HSS : Node_Id; Block : Node_Id);
- -- Given a handled statement sequence, HSS, for which the At_End_Proc
- -- field is set, and which currently has no exception handlers, this
- -- procedure expands the special exception handler required.
- -- This procedure also create a new scope for the given Block, if
- -- Block is not Empty.
-
- procedure Expand_Exception_Handlers (HSS : Node_Id);
- -- This procedure expands exception handlers, and is called as part
- -- of the processing for Expand_N_Handled_Sequence_Of_Statements and
- -- is also called from Expand_At_End_Handler. N is the handled sequence
- -- of statements that has the exception handler(s) to be expanded. This
- -- is also called to expand the special exception handler built for
- -- accept bodies (see Exp_Ch9.Build_Accept_Body).
-
- procedure Generate_Unit_Exception_Table;
- -- Procedure called by main driver to generate unit exception table if
- -- zero cost exceptions are enabled. See System.Exceptions for details.
-
- function Is_Non_Ada_Error (E : Entity_Id) return Boolean;
- -- This function is provided for Gigi use. It returns True if operating on
- -- VMS, and the argument E is the entity for System.Aux_Dec.Non_Ada_Error.
- -- This is used to generate the special matching code for this exception.
-
- procedure Remove_Handler_Entries (N : Node_Id);
- -- This procedure is called when optimization circuits determine that
- -- an entire subtree can be removed. If the subtree contains handler
- -- entries in zero cost exception mode, then such removal can lead to
- -- dangling references to non-existent handlers in the handler table.
- -- This procedure removes such references.
-
- --------------------------------------
- -- Subprogram_Descriptor Generation --
- --------------------------------------
-
- -- Subprogram descriptors are required for all subprograms, including
- -- explicit subprograms defined in the program, subprograms that are
- -- imported via pragma Import, and also for the implicit elaboration
- -- subprograms used to elaborate package specs and bodies.
-
- procedure Generate_Subprogram_Descriptor_For_Package
- (N : Node_Id;
- Spec : Entity_Id);
- -- This is used to create a descriptor for the implicit elaboration
- -- procedure for a package spec of body. The compiler only generates
- -- such descriptors if the package spec or body contains exception
- -- handlers (either explicitly in the case of a body, or from generic
- -- package instantiations). N is the node for the package body or
- -- spec, and Spec is the package body or package entity respectively.
- -- N must be a compilation unit, and the descriptor is placed at
- -- the end of the actions for the auxiliary compilation unit node.
-
- procedure Generate_Subprogram_Descriptor_For_Subprogram
- (N : Node_Id;
- Spec : Entity_Id);
- -- This is used to create a desriptor for a subprogram, both those
- -- present in the source, and those implicitly generated by code
- -- expansion. N is the subprogram body node, and Spec is the entity
- -- for the subprogram. The descriptor is placed at the end of the
- -- Last exception handler, or, if there are no handlers, at the end
- -- of the statement sequence.
-
- procedure Generate_Subprogram_Descriptor_For_Imported_Subprogram
- (Spec : Entity_Id;
- Slist : List_Id);
- -- This is used to create a descriptor for an imported subprogram.
- -- Such descriptors are needed for propagation of exceptions through
- -- such subprograms. The descriptor never references any handlers,
- -- and is appended to the given Slist.
-
-end Exp_Ch11;
projects / msp430-gcc.git / blobdiff