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b4c522fa IB |
1 | |
2 | /* Compiler implementation of the D programming language | |
f3ed896c | 3 | * Copyright (C) 1999-2019 by The D Language Foundation, All Rights Reserved |
b4c522fa IB |
4 | * written by Walter Bright |
5 | * http://www.digitalmars.com | |
6 | * Distributed under the Boost Software License, Version 1.0. | |
7 | * http://www.boost.org/LICENSE_1_0.txt | |
8 | * https://github.com/D-Programming-Language/dmd/blob/master/src/version.c | |
9 | */ | |
10 | ||
f9ab59ff | 11 | #include "root/dsystem.h" |
b4c522fa IB |
12 | #include "root/root.h" |
13 | ||
14 | #include "identifier.h" | |
15 | #include "dsymbol.h" | |
16 | #include "cond.h" | |
17 | #include "version.h" | |
18 | #include "module.h" | |
19 | ||
20 | void checkReserved(Loc loc, const char *ident); | |
21 | ||
22 | /* ================================================== */ | |
23 | ||
24 | /* DebugSymbol's happen for statements like: | |
25 | * debug = identifier; | |
26 | * debug = integer; | |
27 | */ | |
28 | ||
29 | DebugSymbol::DebugSymbol(Loc loc, Identifier *ident) | |
30 | : Dsymbol(ident) | |
31 | { | |
32 | this->loc = loc; | |
33 | } | |
34 | ||
35 | DebugSymbol::DebugSymbol(Loc loc, unsigned level) | |
36 | : Dsymbol() | |
37 | { | |
38 | this->level = level; | |
39 | this->loc = loc; | |
40 | } | |
41 | ||
42 | const char *DebugSymbol::toChars() | |
43 | { | |
44 | if (ident) | |
45 | return ident->toChars(); | |
46 | else | |
47 | { | |
48 | OutBuffer buf; | |
49 | buf.printf("%d", level); | |
50 | return buf.extractString(); | |
51 | } | |
52 | } | |
53 | ||
54 | Dsymbol *DebugSymbol::syntaxCopy(Dsymbol *s) | |
55 | { | |
56 | assert(!s); | |
57 | DebugSymbol *ds = new DebugSymbol(loc, ident); | |
58 | ds->level = level; | |
59 | return ds; | |
60 | } | |
61 | ||
62 | void DebugSymbol::addMember(Scope *, ScopeDsymbol *sds) | |
63 | { | |
64 | //printf("DebugSymbol::addMember('%s') %s\n", sds->toChars(), toChars()); | |
65 | Module *m = sds->isModule(); | |
66 | ||
67 | // Do not add the member to the symbol table, | |
68 | // just make sure subsequent debug declarations work. | |
69 | if (ident) | |
70 | { | |
71 | if (!m) | |
72 | { | |
73 | error("declaration must be at module level"); | |
74 | errors = true; | |
75 | } | |
76 | else | |
77 | { | |
78 | if (findCondition(m->debugidsNot, ident)) | |
79 | { | |
80 | error("defined after use"); | |
81 | errors = true; | |
82 | } | |
83 | if (!m->debugids) | |
84 | m->debugids = new Strings(); | |
85 | m->debugids->push(ident->toChars()); | |
86 | } | |
87 | } | |
88 | else | |
89 | { | |
90 | if (!m) | |
91 | { | |
92 | error("level declaration must be at module level"); | |
93 | errors = true; | |
94 | } | |
95 | else | |
96 | m->debuglevel = level; | |
97 | } | |
98 | } | |
99 | ||
100 | void DebugSymbol::semantic(Scope *) | |
101 | { | |
102 | //printf("DebugSymbol::semantic() %s\n", toChars()); | |
103 | if (semanticRun < PASSsemanticdone) | |
104 | semanticRun = PASSsemanticdone; | |
105 | } | |
106 | ||
f9ab59ff | 107 | const char *DebugSymbol::kind() const |
b4c522fa IB |
108 | { |
109 | return "debug"; | |
110 | } | |
111 | ||
112 | /* ================================================== */ | |
113 | ||
114 | /* VersionSymbol's happen for statements like: | |
115 | * version = identifier; | |
116 | * version = integer; | |
117 | */ | |
118 | ||
119 | VersionSymbol::VersionSymbol(Loc loc, Identifier *ident) | |
120 | : Dsymbol(ident) | |
121 | { | |
122 | this->loc = loc; | |
123 | } | |
124 | ||
125 | VersionSymbol::VersionSymbol(Loc loc, unsigned level) | |
126 | : Dsymbol() | |
127 | { | |
128 | this->level = level; | |
129 | this->loc = loc; | |
130 | } | |
131 | ||
132 | const char *VersionSymbol::toChars() | |
133 | { | |
134 | if (ident) | |
135 | return ident->toChars(); | |
136 | else | |
137 | { | |
138 | OutBuffer buf; | |
139 | buf.printf("%d", level); | |
140 | return buf.extractString(); | |
141 | } | |
142 | } | |
143 | ||
144 | Dsymbol *VersionSymbol::syntaxCopy(Dsymbol *s) | |
145 | { | |
146 | assert(!s); | |
147 | VersionSymbol *ds = ident ? new VersionSymbol(loc, ident) | |
148 | : new VersionSymbol(loc, level); | |
149 | return ds; | |
150 | } | |
151 | ||
152 | void VersionSymbol::addMember(Scope *, ScopeDsymbol *sds) | |
153 | { | |
154 | //printf("VersionSymbol::addMember('%s') %s\n", sds->toChars(), toChars()); | |
155 | Module *m = sds->isModule(); | |
156 | ||
157 | // Do not add the member to the symbol table, | |
158 | // just make sure subsequent debug declarations work. | |
159 | if (ident) | |
160 | { | |
161 | checkReserved(loc, ident->toChars()); | |
162 | if (!m) | |
163 | { | |
164 | error("declaration must be at module level"); | |
165 | errors = true; | |
166 | } | |
167 | else | |
168 | { | |
169 | if (findCondition(m->versionidsNot, ident)) | |
170 | { | |
171 | error("defined after use"); | |
172 | errors = true; | |
173 | } | |
174 | if (!m->versionids) | |
175 | m->versionids = new Strings(); | |
176 | m->versionids->push(ident->toChars()); | |
177 | } | |
178 | } | |
179 | else | |
180 | { | |
181 | if (!m) | |
182 | { | |
183 | error("level declaration must be at module level"); | |
184 | errors = true; | |
185 | } | |
186 | else | |
187 | m->versionlevel = level; | |
188 | } | |
189 | } | |
190 | ||
191 | void VersionSymbol::semantic(Scope *) | |
192 | { | |
193 | if (semanticRun < PASSsemanticdone) | |
194 | semanticRun = PASSsemanticdone; | |
195 | } | |
196 | ||
f9ab59ff | 197 | const char *VersionSymbol::kind() const |
b4c522fa IB |
198 | { |
199 | return "version"; | |
200 | } |