Mercurial > projects > ldc
annotate dmd2/staticassert.c @ 1168:ab186e535e72
A different fix to #218 and DMD2682 that does not lead to constant folding regressions.
Fixes run/const_15, run/c/const_16_B.
The price is removing the lvalueness of struct literals. If it turns out too
much code depends on this behavior or we don't want to break with DMD, we
could keep struct literals as lvalues and instead convert struct literals used
as expression initializers into struct initializers.
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 29 Mar 2009 11:43:45 +0200 |
parents | f04dde6e882c |
children | 638d16625da2 |
rev | line source |
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758
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1 |
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2 // Copyright (c) 1999-2007 by Digital Mars |
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3 // All Rights Reserved |
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4 // written by Walter Bright |
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5 // http://www.digitalmars.com |
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6 // License for redistribution is by either the Artistic License |
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7 // in artistic.txt, or the GNU General Public License in gnu.txt. |
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8 // See the included readme.txt for details. |
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9 |
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10 #include <stdio.h> |
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11 #include <string.h> |
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12 #include <assert.h> |
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13 |
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14 #include "dsymbol.h" |
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15 #include "staticassert.h" |
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16 #include "expression.h" |
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17 #include "id.h" |
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18 #include "hdrgen.h" |
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19 #include "scope.h" |
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20 #include "template.h" |
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21 |
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22 /********************************* AttribDeclaration ****************************/ |
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23 |
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24 StaticAssert::StaticAssert(Loc loc, Expression *exp, Expression *msg) |
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25 : Dsymbol(Id::empty) |
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26 { |
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27 this->loc = loc; |
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28 this->exp = exp; |
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29 this->msg = msg; |
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30 } |
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31 |
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32 Dsymbol *StaticAssert::syntaxCopy(Dsymbol *s) |
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33 { |
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34 StaticAssert *sa; |
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35 |
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36 assert(!s); |
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37 sa = new StaticAssert(loc, exp->syntaxCopy(), msg ? msg->syntaxCopy() : NULL); |
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38 return sa; |
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39 } |
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40 |
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41 int StaticAssert::addMember(Scope *sc, ScopeDsymbol *sd, int memnum) |
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42 { |
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43 return 0; // we didn't add anything |
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44 } |
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45 |
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46 void StaticAssert::semantic(Scope *sc) |
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47 { |
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48 } |
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49 |
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50 void StaticAssert::semantic2(Scope *sc) |
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51 { |
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52 Expression *e; |
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53 |
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54 //printf("StaticAssert::semantic2() %s\n", toChars()); |
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55 e = exp->semantic(sc); |
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56 e = e->optimize(WANTvalue | WANTinterpret); |
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57 if (e->isBool(FALSE)) |
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58 { |
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59 if (msg) |
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60 { HdrGenState hgs; |
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61 OutBuffer buf; |
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62 |
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63 msg = msg->semantic(sc); |
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64 msg = msg->optimize(WANTvalue | WANTinterpret); |
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65 hgs.console = 1; |
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66 msg->toCBuffer(&buf, &hgs); |
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67 error("%s", buf.toChars()); |
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68 } |
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69 else |
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70 error("is false"); |
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71 if(sc->tinst) |
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72 sc->tinst->printInstantiationTrace(); |
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73 if (!global.gag) |
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74 fatal(); |
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75 } |
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76 else if (!e->isBool(TRUE)) |
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77 { |
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78 error("(%s) is not evaluatable at compile time", exp->toChars()); |
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79 } |
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80 } |
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81 |
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82 int StaticAssert::oneMember(Dsymbol **ps) |
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83 { |
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84 //printf("StaticAssert::oneMember())\n"); |
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85 *ps = NULL; |
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86 return TRUE; |
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87 } |
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88 |
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89 void StaticAssert::inlineScan() |
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90 { |
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91 } |
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92 |
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93 void StaticAssert::toObjFile(int multiobj) |
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94 { |
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95 } |
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96 |
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97 const char *StaticAssert::kind() |
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98 { |
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99 return "static assert"; |
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100 } |
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101 |
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102 void StaticAssert::toCBuffer(OutBuffer *buf, HdrGenState *hgs) |
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103 { |
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104 buf->writestring(kind()); |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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105 buf->writeByte('('); |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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changeset
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106 exp->toCBuffer(buf, hgs); |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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107 if (msg) |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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108 { |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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109 buf->writeByte(','); |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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changeset
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110 msg->toCBuffer(buf, hgs); |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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changeset
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111 } |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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112 buf->writestring(");"); |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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113 buf->writenl(); |
f04dde6e882c
Added initial D2 support, D2 frontend and changes to codegen to make things compile.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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114 } |