108 lines
5.5 KiB
Ada
108 lines
5.5 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- P R J . S T R T --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2001-2005, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package implements parsing of string expressions in project files
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with Prj.Tree; use Prj.Tree;
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private package Prj.Strt is
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procedure Parse_String_Type_List
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(In_Tree : Project_Node_Tree_Ref;
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First_String : out Project_Node_Id);
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-- Get the list of literal strings that are allowed for a typed string.
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-- On entry, the current token is the first literal string following
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-- a left parenthesis in a string type declaration such as:
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-- type Toto is ("string_1", "string_2", "string_3");
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-- On exit, the current token is the right parenthesis.
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-- The parameter First_String is a node that contained the first
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-- literal string of the string type, linked with the following
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-- literal strings.
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--
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-- Report an error if
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-- - a literal string is not found at the beginning of the list
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-- or after a comma
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-- - two literal strings in the list are equal
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procedure Start_New_Case_Construction
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(In_Tree : Project_Node_Tree_Ref;
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String_Type : Project_Node_Id);
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-- This procedure is called at the beginning of a case construction
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-- The parameter String_Type is the node for the string type
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-- of the case label variable.
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-- The different literal strings of the string type are stored
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-- into a table to be checked against the case labels of the
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-- case construction.
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procedure End_Case_Construction
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(Check_All_Labels : Boolean;
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Case_Location : Source_Ptr);
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-- This procedure is called at the end of a case construction
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-- to remove the case labels and to restore the previous state.
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-- In particular, in the case of nested case constructions,
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-- the case labels of the enclosing case construction are restored.
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-- When When_Others is False and we are not in quiet output, a warning
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-- is emitted for each value of the case variable string type that has
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-- not been specified.
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procedure Parse_Choice_List
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(In_Tree : Project_Node_Tree_Ref;
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First_Choice : out Project_Node_Id);
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-- Get the label for a choice list.
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-- Report an error if
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-- - a case label is not a literal string
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-- - a case label is not in the typed string list
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-- - the same case label is repeated in the same case construction
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procedure Parse_Expression
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(In_Tree : Project_Node_Tree_Ref;
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Expression : out Project_Node_Id;
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Current_Project : Project_Node_Id;
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Current_Package : Project_Node_Id;
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Optional_Index : Boolean);
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-- Parse a simple string expression or a string list expression.
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-- Current_Project is the node of the project file being parsed.
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-- Current_Package is the node of the package being parsed,
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-- or Empty_Node when we are at the project level (not in a package).
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-- On exit, Expression is the node of the expression that has
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-- been parsed.
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procedure Parse_Variable_Reference
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(In_Tree : Project_Node_Tree_Ref;
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Variable : out Project_Node_Id;
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Current_Project : Project_Node_Id;
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Current_Package : Project_Node_Id);
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-- Parse a variable or attribute reference.
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-- Used internally (in expressions) and for case variables (in Prj.Dect).
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-- Current_Package is the node of the package being parsed,
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-- or Empty_Node when we are at the project level (not in a package).
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-- On exit, Variable is the node of the variable or attribute reference.
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-- A variable reference is made of one to three simple names.
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-- An attribute reference is made of one or two simple names,
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-- followed by an apostroph, followed by the attribute simple name.
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end Prj.Strt;
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