Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/style.ads @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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children | 84e7813d76e9 |
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1 ------------------------------------------------------------------------------ | |
2 -- -- | |
3 -- GNAT COMPILER COMPONENTS -- | |
4 -- -- | |
5 -- S T Y L E -- | |
6 -- -- | |
7 -- S p e c -- | |
8 -- -- | |
9 -- Copyright (C) 1992-2014, Free Software Foundation, Inc. -- | |
10 -- -- | |
11 -- GNAT is free software; you can redistribute it and/or modify it under -- | |
12 -- terms of the GNU General Public License as published by the Free Soft- -- | |
13 -- ware Foundation; either version 3, or (at your option) any later ver- -- | |
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- | |
17 -- for more details. You should have received a copy of the GNU General -- | |
18 -- Public License distributed with GNAT; see file COPYING3. If not, go to -- | |
19 -- http://www.gnu.org/licenses for a complete copy of the license. -- | |
20 -- -- | |
21 -- GNAT was originally developed by the GNAT team at New York University. -- | |
22 -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
23 -- -- | |
24 ------------------------------------------------------------------------------ | |
25 | |
26 -- This package collects all the routines used for style checking in the | |
27 -- compiler, as activated by the relevant command line option. These are | |
28 -- gathered in a separate package so that they can more easily be customized. | |
29 -- Calls to these subprograms are only made if Opt.Style_Check is set True. | |
30 | |
31 with Errout; | |
32 with Styleg; | |
33 with Types; use Types; | |
34 | |
35 package Style is | |
36 | |
37 procedure Body_With_No_Spec (N : Node_Id); | |
38 -- Called where N is a subprogram body node for a subprogram body | |
39 -- for which no spec was given, i.e. a body acting as its own spec. | |
40 | |
41 procedure Check_Array_Attribute_Index | |
42 (N : Node_Id; | |
43 E1 : Node_Id; | |
44 D : Int); | |
45 -- Called for an array attribute specifying an index number. N is the | |
46 -- node for the attribute, and E1 is the index expression (Empty if none | |
47 -- present). If E1 is present, it is known to be a static integer. D is | |
48 -- the number of dimensions of the array. | |
49 | |
50 procedure Check_Identifier | |
51 (Ref : Node_Or_Entity_Id; | |
52 Def : Node_Or_Entity_Id); | |
53 -- Check style of identifier occurrence. Ref is an N_Identifier node whose | |
54 -- spelling is to be checked against the Chars spelling in identifier node | |
55 -- Def (which may be either an N_Identifier, or N_Defining_Identifier node) | |
56 | |
57 procedure Missing_Overriding (N : Node_Id; E : Entity_Id); | |
58 -- Called where N is the declaration or body of an overriding operation, | |
59 -- and the node does not have an overriding_indicator. | |
60 | |
61 procedure Subprogram_Not_In_Alpha_Order (Name : Node_Id); | |
62 -- Called if Name is the name of a subprogram body in a package body | |
63 -- that is not in alphabetical order. | |
64 | |
65 -- Remaining style routines come from instantiation of Styleg | |
66 | |
67 package Style_Inst is new Styleg | |
68 (Errout.Error_Msg, | |
69 Errout.Error_Msg_S, | |
70 Errout.Error_Msg_SC, | |
71 Errout.Error_Msg_SP); | |
72 -- Instantiation of Styleg for compiler use | |
73 | |
74 procedure Check_Abs_Not | |
75 renames Style_Inst.Check_Abs_Not; | |
76 -- Called after scanning an ABS or NOT operator to check spacing | |
77 | |
78 procedure Check_Apostrophe | |
79 renames Style_Inst.Check_Apostrophe; | |
80 -- Called after scanning an apostrophe to check spacing | |
81 | |
82 procedure Check_Arrow (Inside_Depends : Boolean := False) | |
83 renames Style_Inst.Check_Arrow; | |
84 -- Called after scanning out an arrow to check spacing | |
85 | |
86 procedure Check_Attribute_Name (Reserved : Boolean) | |
87 renames Style_Inst.Check_Attribute_Name; | |
88 -- The current token is an attribute designator. Check that it is | |
89 -- capitalized in an appropriate manner. Reserved is set if the attribute | |
90 -- designator is a reserved word (access, digits, delta or range) to allow | |
91 -- differing rules for the two cases. | |
92 | |
93 procedure Check_Boolean_Operator (Node : Node_Id) | |
94 renames Style_Inst.Check_Boolean_Operator; | |
95 -- Called after resolving AND or OR node to check short circuit rules | |
96 | |
97 procedure Check_Box | |
98 renames Style_Inst.Check_Box; | |
99 -- Called after scanning out a box to check spacing | |
100 | |
101 procedure Check_Binary_Operator | |
102 renames Style_Inst.Check_Binary_Operator; | |
103 -- Called after scanning out a binary operator other than a plus, minus | |
104 -- or exponentiation operator. Intended for checking spacing rules. | |
105 | |
106 procedure Check_Exponentiation_Operator | |
107 renames Style_Inst.Check_Exponentiation_Operator; | |
108 -- Called after scanning out an exponentiation operator. Intended for | |
109 -- checking spacing rules. | |
110 | |
111 procedure Check_Colon | |
112 renames Style_Inst.Check_Colon; | |
113 -- Called after scanning out colon to check spacing | |
114 | |
115 procedure Check_Colon_Equal | |
116 renames Style_Inst.Check_Colon_Equal; | |
117 -- Called after scanning out colon equal to check spacing | |
118 | |
119 procedure Check_Comma | |
120 renames Style_Inst.Check_Comma; | |
121 -- Called after scanning out comma to check spacing | |
122 | |
123 procedure Check_Comment | |
124 renames Style_Inst.Check_Comment; | |
125 -- Called with Scan_Ptr pointing to the first minus sign of a comment. | |
126 -- Intended for checking any specific rules for comment placement/format. | |
127 | |
128 procedure Check_Dot_Dot | |
129 renames Style_Inst.Check_Dot_Dot; | |
130 -- Called after scanning out dot dot to check spacing | |
131 | |
132 procedure Check_EOF | |
133 renames Style_Inst.Check_EOF; | |
134 -- Called after scanning out end of file mark | |
135 | |
136 procedure Check_HT | |
137 renames Style_Inst.Check_HT; | |
138 -- Called with Scan_Ptr pointing to a horizontal tab character | |
139 | |
140 procedure Check_Indentation | |
141 renames Style_Inst.Check_Indentation; | |
142 -- Called at the start of a new statement or declaration, with Token_Ptr | |
143 -- pointing to the first token of the statement or declaration. The check | |
144 -- is that the starting column is appropriate to the indentation rules if | |
145 -- Token_Ptr is the first token on the line. | |
146 | |
147 procedure Check_Left_Paren | |
148 renames Style_Inst.Check_Left_Paren; | |
149 -- Called after scanning out a left parenthesis to check spacing | |
150 | |
151 procedure Check_Line_Terminator (Len : Int) | |
152 renames Style_Inst.Check_Line_Terminator; | |
153 -- Called with Scan_Ptr pointing to the first line terminator terminating | |
154 -- the current line, used to check for appropriate line terminator and to | |
155 -- check the line length (Len is the length of the current line). Note that | |
156 -- the terminator may be the EOF character. | |
157 | |
158 procedure Check_Not_In | |
159 renames Style_Inst.Check_Not_In; | |
160 -- Called with Scan_Ptr pointing to an IN token, and Prev_Token_Ptr | |
161 -- pointing to a NOT token. Used to check proper layout of NOT IN. | |
162 | |
163 procedure Check_Pragma_Name | |
164 renames Style_Inst.Check_Pragma_Name; | |
165 -- The current token is a pragma identifier. Check that it is spelled | |
166 -- properly (i.e. with an appropriate casing convention). | |
167 | |
168 procedure Check_Right_Paren | |
169 renames Style_Inst.Check_Right_Paren; | |
170 -- Called after scanning out a right parenthesis to check spacing | |
171 | |
172 procedure Check_Semicolon | |
173 renames Style_Inst.Check_Semicolon; | |
174 -- Called after scanning out a semicolon to check spacing | |
175 | |
176 procedure Check_Then (If_Loc : Source_Ptr) | |
177 renames Style_Inst.Check_Then; | |
178 -- Called to check that THEN and IF keywords are appropriately positioned. | |
179 -- The parameters show the first characters of the two keywords. This | |
180 -- procedure is called only if THEN appears at the start of a line with | |
181 -- Token_Ptr pointing to the THEN keyword. | |
182 | |
183 procedure Check_Unary_Plus_Or_Minus (Inside_Depends : Boolean := False) | |
184 renames Style_Inst.Check_Unary_Plus_Or_Minus; | |
185 -- Called after scanning a unary plus or minus to check spacing | |
186 | |
187 procedure Check_Vertical_Bar | |
188 renames Style_Inst.Check_Vertical_Bar; | |
189 -- Called after scanning a vertical bar to check spacing | |
190 | |
191 procedure Check_Xtra_Parens (Loc : Source_Ptr) | |
192 renames Style_Inst.Check_Xtra_Parens; | |
193 -- Called after scanning an if, case or quantified expression that has at | |
194 -- least one level of parentheses around the entire expression. | |
195 | |
196 function Mode_In_Check return Boolean | |
197 renames Style_Inst.Mode_In_Check; | |
198 -- Determines whether style checking is active and the Mode_In_Check is | |
199 -- set, forbidding the explicit use of mode IN. | |
200 | |
201 procedure No_End_Name (Name : Node_Id) | |
202 renames Style_Inst.No_End_Name; | |
203 -- Called if an END is encountered where a name is allowed but not present. | |
204 -- The parameter is the node whose name is the name that is permitted in | |
205 -- the END line, and the scan pointer is positioned so that if an error | |
206 -- message is to be generated in this situation, it should be generated | |
207 -- using Error_Msg_SP. | |
208 | |
209 procedure No_Exit_Name (Name : Node_Id) | |
210 renames Style_Inst.No_Exit_Name; | |
211 -- Called when exiting a named loop, but a name is not present on the EXIT. | |
212 -- The parameter is the node whose name should have followed EXIT, and the | |
213 -- scan pointer is positioned so that if an error message is to be | |
214 -- generated, it should be generated using Error_Msg_SP. | |
215 | |
216 procedure Non_Lower_Case_Keyword | |
217 renames Style_Inst.Non_Lower_Case_Keyword; | |
218 -- Called if a reserved keyword is scanned which is not spelled in all | |
219 -- lower case letters. On entry Token_Ptr points to the keyword token. | |
220 -- This is not used for keywords appearing as attribute designators, | |
221 -- where instead Check_Attribute_Name (True) is called. | |
222 end Style; |