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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- B I N D O --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 2019, Free Software Foundation, Inc. --
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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17 -- for more details. You should have received a copy of the GNU General --
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18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
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19 -- http://www.gnu.org/licenses for a complete copy of the license. --
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20 -- --
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21 -- GNAT was originally developed by the GNAT team at New York University. --
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22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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23 -- --
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24 ------------------------------------------------------------------------------
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25
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26 -- The following unit contains the main entry point into the elaboration order
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27 -- mechanism. See the body for details.
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28
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29 with ALI; use ALI;
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30 with Namet; use Namet;
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31
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32 package Bindo is
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33
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34 -- The following type represents the various phases of the elaboration
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35 -- order mechanism.
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36
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37 type Elaboration_Phase is
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38 (Component_Discovery,
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39 Cycle_Diagnostics,
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40 Cycle_Discovery,
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41 Cycle_Validation,
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42 Elaboration_Order_Validation,
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43 Invocation_Graph_Construction,
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44 Invocation_Graph_Validation,
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45 Library_Graph_Augmentation,
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46 Library_Graph_Construction,
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47 Library_Graph_Elaboration,
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48 Library_Graph_Validation,
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49 Unit_Collection,
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50 Unit_Elaboration);
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51
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52 -- The following type represents the various kinds of precedence between
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53 -- two items.
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54
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55 type Precedence_Kind is
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56 (Lower_Precedence,
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57 Equal_Precedence,
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58 Higher_Precedence);
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59
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60 procedure Find_Elaboration_Order
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61 (Order : out Unit_Id_Table;
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62 Main_Lib_File : File_Name_Type);
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63 -- Find an order of all units in the bind that need to be elaborated
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64 -- such that elaboration code flow, pragmas Elaborate, Elaborate_All,
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65 -- and Elaborate_Body, and with clause dependencies are all honoured.
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66 -- Main_Lib_File is the argument of the bind. If a satisfactory order
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67 -- exists, it is returned in Order, otherwise Unrecoverable_Error is
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68 -- raised.
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69
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70 end Bindo;
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