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| 1eee94d3 GM |
1 | (* M2CaseList.def implement ISO case label lists. |
| 2 | ||
| 83ffe9cd | 3 | Copyright (C) 2009-2023 Free Software Foundation, Inc. |
| 1eee94d3 GM |
4 | Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>. |
| 5 | ||
| 6 | This file is part of GNU Modula-2. | |
| 7 | ||
| 8 | GNU Modula-2 is free software; you can redistribute it and/or modify | |
| 9 | it under the terms of the GNU General Public License as published by | |
| 10 | the Free Software Foundation; either version 3, or (at your option) | |
| 11 | any later version. | |
| 12 | ||
| 13 | GNU Modula-2 is distributed in the hope that it will be useful, but | |
| 14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | General Public License for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU General Public License | |
| 19 | along with GNU Modula-2; see the file COPYING3. If not see | |
| 20 | <http://www.gnu.org/licenses/>. *) | |
| 21 | ||
| 22 | DEFINITION MODULE M2CaseList ; | |
| 23 | ||
| 24 | (* | |
| 25 | Title : M2CaseList | |
| 26 | Author : Gaius Mulley | |
| 27 | System : GNU Modula-2 | |
| 28 | Date : Fri Jul 24 09:53:48 2009 | |
| 29 | Revision : $Version$ | |
| 30 | Description: | |
| 31 | *) | |
| 32 | ||
| 33 | FROM DynamicStrings IMPORT String ; | |
| 34 | FROM Lists IMPORT List ; | |
| 35 | ||
| 36 | ||
| 37 | (* | |
| 38 | PushCase - create a case entity and push it to an internal stack. | |
| 39 | Return the case id. | |
| 40 | *) | |
| 41 | ||
| 42 | PROCEDURE PushCase (r: CARDINAL; v: CARDINAL) : CARDINAL ; | |
| 43 | ||
| 44 | ||
| 45 | (* | |
| 46 | PopCase - pop the top element of the case entity from the internal | |
| 47 | stack. | |
| 48 | *) | |
| 49 | ||
| 50 | PROCEDURE PopCase ; | |
| 51 | ||
| 52 | ||
| 53 | (* | |
| 54 | ElseCase - indicates that this case varient does have an else clause. | |
| 55 | *) | |
| 56 | ||
| 57 | PROCEDURE ElseCase (f: CARDINAL) ; | |
| 58 | ||
| 59 | ||
| 60 | (* | |
| 61 | BeginCaseList - create a new label list. | |
| 62 | *) | |
| 63 | ||
| 64 | PROCEDURE BeginCaseList (v: CARDINAL) ; | |
| 65 | ||
| 66 | ||
| 67 | (* | |
| 68 | EndCaseList - terminate the current label list. | |
| 69 | *) | |
| 70 | ||
| 71 | PROCEDURE EndCaseList ; | |
| 72 | ||
| 73 | ||
| 74 | (* | |
| 75 | AddRange - add a range to the current label list. | |
| 76 | *) | |
| 77 | ||
| 78 | PROCEDURE AddRange (r1, r2: CARDINAL; tok: CARDINAL) ; | |
| 79 | ||
| 80 | ||
| 81 | (* | |
| 82 | CaseBoundsResolved - returns TRUE if all constants in the case list, c, | |
| 83 | are known to GCC. | |
| 84 | *) | |
| 85 | ||
| 86 | PROCEDURE CaseBoundsResolved (tokenno: CARDINAL; c: CARDINAL) : BOOLEAN ; | |
| 87 | ||
| 88 | ||
| 89 | (* | |
| 90 | TypeCaseBounds - returns TRUE if all bounds in case list, c, are | |
| 91 | compatible with the tagged type. | |
| 92 | *) | |
| 93 | ||
| 94 | PROCEDURE TypeCaseBounds (c: CARDINAL) : BOOLEAN ; | |
| 95 | ||
| 96 | ||
| 97 | (* | |
| 98 | OverlappingCaseBounds - returns TRUE if there were any overlapping bounds | |
| 99 | in the case list, c. It will generate an error | |
| 100 | messages for each overlapping bound found. | |
| 101 | *) | |
| 102 | ||
| 103 | PROCEDURE OverlappingCaseBounds (c: CARDINAL) : BOOLEAN ; | |
| 104 | ||
| 105 | ||
| 106 | (* | |
| 107 | MissingCaseBounds - returns TRUE if there were any missing bounds | |
| 108 | in the varient record case list, c. It will | |
| 109 | generate an error message for each missing | |
| 110 | bounds found. | |
| 111 | *) | |
| 112 | ||
| 113 | PROCEDURE MissingCaseBounds (tokenno: CARDINAL; c: CARDINAL) : BOOLEAN ; | |
| 114 | ||
| 115 | ||
| 116 | (* | |
| 117 | WriteCase - displays the case list. | |
| 118 | *) | |
| 119 | ||
| 120 | PROCEDURE WriteCase (c: CARDINAL) ; | |
| 121 | ||
| 122 | ||
| 123 | END M2CaseList. |