cmGeneratorExpressionEvaluator.cxx 63.4 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2012 Stephen Kelly <steveire@gmail.com>

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/
#include "cmMakefile.h"

#include "cmGeneratorExpressionEvaluator.h"
#include "cmGeneratorExpressionParser.h"
16
#include "cmGeneratorExpressionDAGChecker.h"
17
#include "cmGeneratorExpression.h"
18

19
20
#include <cmsys/String.h>

21
#include <assert.h>
Stephen Kelly's avatar
Stephen Kelly committed
22
#include <errno.h>
23

24
//----------------------------------------------------------------------------
25
26
27
28
#if !defined(__SUNPRO_CC) || __SUNPRO_CC > 0x510
static
#endif
void reportError(cmGeneratorExpressionContext *context,
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
                        const std::string &expr, const std::string &result)
{
  context->HadError = true;
  if (context->Quiet)
    {
    return;
    }

  cmOStringStream e;
  e << "Error evaluating generator expression:\n"
    << "  " << expr << "\n"
    << result;
  context->Makefile->GetCMakeInstance()
    ->IssueMessage(cmake::FATAL_ERROR, e.str().c_str(),
                    context->Backtrace);
}

//----------------------------------------------------------------------------
struct cmGeneratorExpressionNode
{
49
50
51
  enum {
    DynamicParameters = 0,
    OneOrMoreParameters = -1,
52
    OneOrZeroParameters = -2
53
  };
54
55
56
57
  virtual ~cmGeneratorExpressionNode() {}

  virtual bool GeneratesContent() const { return true; }

58
59
  virtual bool RequiresLiteralInput() const { return false; }

60
  virtual bool AcceptsArbitraryContentParameter() const
61
62
63
64
65
66
    { return false; }

  virtual int NumExpectedParameters() const { return 1; }

  virtual std::string Evaluate(const std::vector<std::string> &parameters,
                               cmGeneratorExpressionContext *context,
67
68
                               const GeneratorExpressionContent *content,
                               cmGeneratorExpressionDAGChecker *dagChecker
69
70
71
72
73
74
75
76
77
78
                              ) const = 0;
};

//----------------------------------------------------------------------------
static const struct ZeroNode : public cmGeneratorExpressionNode
{
  ZeroNode() {}

  virtual bool GeneratesContent() const { return false; }

79
  virtual bool AcceptsArbitraryContentParameter() const { return true; }
80

81
82
  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *,
83
84
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
85
86
87
88
89
90
91
92
93
94
  {
    return std::string();
  }
} zeroNode;

//----------------------------------------------------------------------------
static const struct OneNode : public cmGeneratorExpressionNode
{
  OneNode() {}

95
  virtual bool AcceptsArbitraryContentParameter() const { return true; }
96

97
  std::string Evaluate(const std::vector<std::string> &parameters,
98
                       cmGeneratorExpressionContext *,
99
100
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
101
  {
102
    return parameters.front();
103
104
105
  }
} oneNode;

106
107
108
109
110
111
//----------------------------------------------------------------------------
static const struct OneNode buildInterfaceNode;

//----------------------------------------------------------------------------
static const struct ZeroNode installInterfaceNode;

112
113
114
115
116
//----------------------------------------------------------------------------
#define BOOLEAN_OP_NODE(OPNAME, OP, SUCCESS_VALUE, FAILURE_VALUE) \
static const struct OP ## Node : public cmGeneratorExpressionNode \
{ \
  OP ## Node () {} \
117
  virtual int NumExpectedParameters() const { return OneOrMoreParameters; } \
118
119
120
 \
  std::string Evaluate(const std::vector<std::string> &parameters, \
                       cmGeneratorExpressionContext *context, \
121
122
                       const GeneratorExpressionContent *content, \
                       cmGeneratorExpressionDAGChecker *) const \
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
  { \
    std::vector<std::string>::const_iterator it = parameters.begin(); \
    const std::vector<std::string>::const_iterator end = parameters.end(); \
    for ( ; it != end; ++it) \
      { \
      if (*it == #FAILURE_VALUE) \
        { \
        return #FAILURE_VALUE; \
        } \
      else if (*it != #SUCCESS_VALUE) \
        { \
        reportError(context, content->GetOriginalExpression(), \
        "Parameters to $<" #OP "> must resolve to either '0' or '1'."); \
        return std::string(); \
        } \
      } \
    return #SUCCESS_VALUE; \
  } \
} OPNAME;

BOOLEAN_OP_NODE(andNode, AND, 1, 0)
BOOLEAN_OP_NODE(orNode, OR, 0, 1)

#undef BOOLEAN_OP_NODE

//----------------------------------------------------------------------------
static const struct NotNode : public cmGeneratorExpressionNode
{
  NotNode() {}
152

153
154
  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
155
156
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *) const
157
158
159
160
161
162
163
164
165
166
167
  {
    if (*parameters.begin() != "0" && *parameters.begin() != "1")
      {
      reportError(context, content->GetOriginalExpression(),
            "$<NOT> parameter must resolve to exactly one '0' or '1' value.");
      return std::string();
      }
    return *parameters.begin() == "0" ? "1" : "0";
  }
} notNode;

168
169
170
171
172
173
174
175
176
//----------------------------------------------------------------------------
static const struct BoolNode : public cmGeneratorExpressionNode
{
  BoolNode() {}

  virtual int NumExpectedParameters() const { return 1; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
177
178
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
179
180
181
182
183
184
185
186
187
188
189
190
191
192
  {
    return !cmSystemTools::IsOff(parameters.begin()->c_str()) ? "1" : "0";
  }
} boolNode;

//----------------------------------------------------------------------------
static const struct StrEqualNode : public cmGeneratorExpressionNode
{
  StrEqualNode() {}

  virtual int NumExpectedParameters() const { return 2; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
193
194
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
195
  {
196
    return *parameters.begin() == parameters[1] ? "1" : "0";
197
198
199
  }
} strEqualNode;

Stephen Kelly's avatar
Stephen Kelly committed
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
//----------------------------------------------------------------------------
static const struct EqualNode : public cmGeneratorExpressionNode
{
  EqualNode() {}

  virtual int NumExpectedParameters() const { return 2; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *) const
  {
    char *pEnd;

    int base = 0;
    bool flipSign = false;

    const char *lhs = parameters[0].c_str();
218
    if (cmHasLiteralPrefix(lhs, "0b") || cmHasLiteralPrefix(lhs, "0B"))
Stephen Kelly's avatar
Stephen Kelly committed
219
220
221
222
      {
      base = 2;
      lhs += 2;
      }
223
    if (cmHasLiteralPrefix(lhs, "-0b") || cmHasLiteralPrefix(lhs, "-0B"))
Stephen Kelly's avatar
Stephen Kelly committed
224
225
226
227
228
      {
      base = 2;
      lhs += 3;
      flipSign = true;
      }
229
    if (cmHasLiteralPrefix(lhs, "+0b") || cmHasLiteralPrefix(lhs, "+0B"))
Stephen Kelly's avatar
Stephen Kelly committed
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
      {
      base = 2;
      lhs += 3;
      }

    long lnum = strtol(lhs, &pEnd, base);
    if (pEnd == lhs || *pEnd != '\0' || errno == ERANGE)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<EQUAL> parameter " + parameters[0] + " is not a valid integer.");
      return std::string();
      }

    if (flipSign)
      {
      lnum = -lnum;
      }

    base = 0;
    flipSign = false;

    const char *rhs = parameters[1].c_str();
252
    if (cmHasLiteralPrefix(rhs, "0b") || cmHasLiteralPrefix(rhs, "0B"))
Stephen Kelly's avatar
Stephen Kelly committed
253
254
255
256
      {
      base = 2;
      rhs += 2;
      }
257
    if (cmHasLiteralPrefix(rhs, "-0b") || cmHasLiteralPrefix(rhs, "-0B"))
Stephen Kelly's avatar
Stephen Kelly committed
258
259
260
261
262
      {
      base = 2;
      rhs += 3;
      flipSign = true;
      }
263
    if (cmHasLiteralPrefix(rhs, "+0b") || cmHasLiteralPrefix(rhs, "+0B"))
Stephen Kelly's avatar
Stephen Kelly committed
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
      {
      base = 2;
      rhs += 3;
      }

    long rnum = strtol(rhs, &pEnd, base);
    if (pEnd == rhs || *pEnd != '\0' || errno == ERANGE)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<EQUAL> parameter " + parameters[1] + " is not a valid integer.");
      return std::string();
      }

    if (flipSign)
      {
      rnum = -rnum;
      }

    return lnum == rnum ? "1" : "0";
  }
} equalNode;

286
287
288
289
290
//----------------------------------------------------------------------------
static const struct LowerCaseNode : public cmGeneratorExpressionNode
{
  LowerCaseNode() {}

291
292
  bool AcceptsArbitraryContentParameter() const { return true; }

293
294
295
296
297
298
299
300
301
302
303
304
305
306
  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return cmSystemTools::LowerCase(parameters.front());
  }
} lowerCaseNode;

//----------------------------------------------------------------------------
static const struct UpperCaseNode : public cmGeneratorExpressionNode
{
  UpperCaseNode() {}

307
308
  bool AcceptsArbitraryContentParameter() const { return true; }

309
310
311
312
313
314
315
316
317
318
319
320
321
322
  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return cmSystemTools::UpperCase(parameters.front());
  }
} upperCaseNode;

//----------------------------------------------------------------------------
static const struct MakeCIdentifierNode : public cmGeneratorExpressionNode
{
  MakeCIdentifierNode() {}

323
324
  bool AcceptsArbitraryContentParameter() const { return true; }

325
326
327
328
329
330
331
332
333
  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return cmSystemTools::MakeCidentifier(parameters.front().c_str());
  }
} makeCIdentifierNode;

334
335
336
337
338
339
340
341
342
//----------------------------------------------------------------------------
static const struct Angle_RNode : public cmGeneratorExpressionNode
{
  Angle_RNode() {}

  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *,
343
344
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
345
346
347
348
349
350
351
352
353
354
355
356
357
358
  {
    return ">";
  }
} angle_rNode;

//----------------------------------------------------------------------------
static const struct CommaNode : public cmGeneratorExpressionNode
{
  CommaNode() {}

  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *,
359
360
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
361
362
363
364
365
  {
    return ",";
  }
} commaNode;

366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
//----------------------------------------------------------------------------
static const struct SemicolonNode : public cmGeneratorExpressionNode
{
  SemicolonNode() {}

  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return ";";
  }
} semicolonNode;

382
383
384
385
386
//----------------------------------------------------------------------------
struct CompilerIdNode : public cmGeneratorExpressionNode
{
  CompilerIdNode() {}

387
  virtual int NumExpectedParameters() const { return OneOrZeroParameters; }
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414

  std::string EvaluateWithLanguage(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *,
                       const std::string &lang) const
  {
    const char *compilerId = context->Makefile ?
                              context->Makefile->GetSafeDefinition((
                              "CMAKE_" + lang + "_COMPILER_ID").c_str()) : "";
    if (parameters.size() == 0)
      {
      return compilerId ? compilerId : "";
      }
    cmsys::RegularExpression compilerIdValidator;
    compilerIdValidator.compile("^[A-Za-z0-9_]*$");
    if (!compilerIdValidator.find(parameters.begin()->c_str()))
      {
      reportError(context, content->GetOriginalExpression(),
                  "Expression syntax not recognized.");
      return std::string();
      }
    if (!compilerId)
      {
      return parameters.front().empty() ? "1" : "0";
      }

415
    if (strcmp(parameters.begin()->c_str(), compilerId) == 0)
416
417
418
      {
      return "1";
      }
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440

    if (cmsysString_strcasecmp(parameters.begin()->c_str(), compilerId) == 0)
      {
      switch(context->Makefile->GetPolicyStatus(cmPolicies::CMP0044))
        {
        case cmPolicies::WARN:
          {
          cmOStringStream e;
          e << context->Makefile->GetPolicies()
                      ->GetPolicyWarning(cmPolicies::CMP0044);
          context->Makefile->GetCMakeInstance()
                 ->IssueMessage(cmake::AUTHOR_WARNING,
                                e.str().c_str(), context->Backtrace);
          }
        case cmPolicies::OLD:
          return "1";
        case cmPolicies::NEW:
        case cmPolicies::REQUIRED_ALWAYS:
        case cmPolicies::REQUIRED_IF_USED:
          break;
        }
      }
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
    return "0";
  }
};

//----------------------------------------------------------------------------
static const struct CCompilerIdNode : public CompilerIdNode
{
  CCompilerIdNode() {}

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *dagChecker) const
  {
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<C_COMPILER_ID> may only be used with targets.  It may not "
          "be used with add_custom_command.");
460
      return std::string();
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
      }
    return this->EvaluateWithLanguage(parameters, context, content,
                                      dagChecker, "C");
  }
} cCompilerIdNode;

//----------------------------------------------------------------------------
static const struct CXXCompilerIdNode : public CompilerIdNode
{
  CXXCompilerIdNode() {}

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *dagChecker) const
  {
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<CXX_COMPILER_ID> may only be used with targets.  It may not "
          "be used with add_custom_command.");
482
      return std::string();
483
484
485
486
487
488
      }
    return this->EvaluateWithLanguage(parameters, context, content,
                                      dagChecker, "CXX");
  }
} cxxCompilerIdNode;

489
490
491
492
493
//----------------------------------------------------------------------------
struct CompilerVersionNode : public cmGeneratorExpressionNode
{
  CompilerVersionNode() {}

494
  virtual int NumExpectedParameters() const { return OneOrZeroParameters; }
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543

  std::string EvaluateWithLanguage(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *,
                       const std::string &lang) const
  {
    const char *compilerVersion = context->Makefile ?
                              context->Makefile->GetSafeDefinition((
                        "CMAKE_" + lang + "_COMPILER_VERSION").c_str()) : "";
    if (parameters.size() == 0)
      {
      return compilerVersion ? compilerVersion : "";
      }

    cmsys::RegularExpression compilerIdValidator;
    compilerIdValidator.compile("^[0-9\\.]*$");
    if (!compilerIdValidator.find(parameters.begin()->c_str()))
      {
      reportError(context, content->GetOriginalExpression(),
                  "Expression syntax not recognized.");
      return std::string();
      }
    if (!compilerVersion)
      {
      return parameters.front().empty() ? "1" : "0";
      }

    return cmSystemTools::VersionCompare(cmSystemTools::OP_EQUAL,
                                      parameters.begin()->c_str(),
                                      compilerVersion) ? "1" : "0";
  }
};

//----------------------------------------------------------------------------
static const struct CCompilerVersionNode : public CompilerVersionNode
{
  CCompilerVersionNode() {}

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *dagChecker) const
  {
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<C_COMPILER_VERSION> may only be used with targets.  It may not "
          "be used with add_custom_command.");
544
      return std::string();
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
      }
    return this->EvaluateWithLanguage(parameters, context, content,
                                      dagChecker, "C");
  }
} cCompilerVersionNode;

//----------------------------------------------------------------------------
static const struct CxxCompilerVersionNode : public CompilerVersionNode
{
  CxxCompilerVersionNode() {}

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *dagChecker) const
  {
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<CXX_COMPILER_VERSION> may only be used with targets.  It may "
          "not be used with add_custom_command.");
566
      return std::string();
567
568
569
570
571
572
573
      }
    return this->EvaluateWithLanguage(parameters, context, content,
                                      dagChecker, "CXX");
  }
} cxxCompilerVersionNode;


574
575
576
577
578
//----------------------------------------------------------------------------
struct PlatformIdNode : public cmGeneratorExpressionNode
{
  PlatformIdNode() {}

579
  virtual int NumExpectedParameters() const { return OneOrZeroParameters; }
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    const char *platformId = context->Makefile ?
                              context->Makefile->GetSafeDefinition(
                        "CMAKE_SYSTEM_NAME") : "";
    if (parameters.size() == 0)
      {
      return platformId ? platformId : "";
      }

    if (!platformId)
      {
      return parameters.front().empty() ? "1" : "0";
      }

599
    if (strcmp(parameters.begin()->c_str(), platformId) == 0)
600
601
602
603
604
605
606
      {
      return "1";
      }
    return "0";
  }
} platformIdNode;

607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
//----------------------------------------------------------------------------
static const struct VersionGreaterNode : public cmGeneratorExpressionNode
{
  VersionGreaterNode() {}

  virtual int NumExpectedParameters() const { return 2; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return cmSystemTools::VersionCompare(cmSystemTools::OP_GREATER,
                                         parameters.front().c_str(),
                                         parameters[1].c_str()) ? "1" : "0";
  }
} versionGreaterNode;

//----------------------------------------------------------------------------
static const struct VersionLessNode : public cmGeneratorExpressionNode
{
  VersionLessNode() {}

  virtual int NumExpectedParameters() const { return 2; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return cmSystemTools::VersionCompare(cmSystemTools::OP_LESS,
                                         parameters.front().c_str(),
                                         parameters[1].c_str()) ? "1" : "0";
  }
} versionLessNode;

//----------------------------------------------------------------------------
static const struct VersionEqualNode : public cmGeneratorExpressionNode
{
  VersionEqualNode() {}

  virtual int NumExpectedParameters() const { return 2; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return cmSystemTools::VersionCompare(cmSystemTools::OP_EQUAL,
                                         parameters.front().c_str(),
                                         parameters[1].c_str()) ? "1" : "0";
  }
} versionEqualNode;

661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
//----------------------------------------------------------------------------
static const struct LinkOnlyNode : public cmGeneratorExpressionNode
{
  LinkOnlyNode() {}

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *dagChecker) const
  {
    if(!dagChecker->GetTransitivePropertiesOnly())
      {
      return parameters.front();
      }
    return "";
  }
} linkOnlyNode;

679
680
681
682
//----------------------------------------------------------------------------
static const struct ConfigurationNode : public cmGeneratorExpressionNode
{
  ConfigurationNode() {}
683

684
685
686
687
  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *context,
688
689
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
690
  {
691
    context->HadContextSensitiveCondition = true;
692
    return context->Config;
693
694
695
696
697
698
699
700
  }
} configurationNode;

//----------------------------------------------------------------------------
static const struct ConfigurationTestNode : public cmGeneratorExpressionNode
{
  ConfigurationTestNode() {}

701
  virtual int NumExpectedParameters() const { return OneOrZeroParameters; }
702
703
704

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
705
706
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *) const
707
  {
708
709
710
711
    if (parameters.empty())
      {
      return configurationNode.Evaluate(parameters, context, content, 0);
      }
712
713
714
715
716
717
718
719
    cmsys::RegularExpression configValidator;
    configValidator.compile("^[A-Za-z0-9_]*$");
    if (!configValidator.find(parameters.begin()->c_str()))
      {
      reportError(context, content->GetOriginalExpression(),
                  "Expression syntax not recognized.");
      return std::string();
      }
720
    context->HadContextSensitiveCondition = true;
721
    if (context->Config.empty())
722
723
724
725
      {
      return parameters.front().empty() ? "1" : "0";
      }

726
    if (cmsysString_strcasecmp(parameters.begin()->c_str(),
727
                               context->Config.c_str()) == 0)
728
729
730
731
732
733
734
735
736
737
      {
      return "1";
      }

    if (context->CurrentTarget
        && context->CurrentTarget->IsImported())
      {
      const char* loc = 0;
      const char* imp = 0;
      std::string suffix;
738
      if (context->CurrentTarget->GetMappedConfig(context->Config,
739
740
                                                  &loc,
                                                  &imp,
741
742
743
744
745
746
747
                                                  suffix))
        {
        // This imported target has an appropriate location
        // for this (possibly mapped) config.
        // Check if there is a proper config mapping for the tested config.
        std::vector<std::string> mappedConfigs;
        std::string mapProp = "MAP_IMPORTED_CONFIG_";
748
        mapProp += cmSystemTools::UpperCase(context->Config);
749
750
751
752
753
754
        if(const char* mapValue =
                        context->CurrentTarget->GetProperty(mapProp.c_str()))
          {
          cmSystemTools::ExpandListArgument(cmSystemTools::UpperCase(mapValue),
                                            mappedConfigs);
          return std::find(mappedConfigs.begin(), mappedConfigs.end(),
755
756
                           cmSystemTools::UpperCase(parameters.front()))
              != mappedConfigs.end() ? "1" : "0";
757
758
          }
        }
759
760
      }
    return "0";
761
762
763
  }
} configurationTestNode;

764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
static const struct JoinNode : public cmGeneratorExpressionNode
{
  JoinNode() {}

  virtual int NumExpectedParameters() const { return 2; }

  virtual bool AcceptsArbitraryContentParameter() const { return true; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    std::string result;

    std::vector<std::string> list;
    cmSystemTools::ExpandListArgument(parameters.front(), list);
    std::string sep;
    for(std::vector<std::string>::const_iterator li = list.begin();
      li != list.end(); ++li)
      {
      result += sep + *li;
      sep = parameters[1];
      }
    return result;
  }
} joinNode;

792
#define TRANSITIVE_PROPERTY_NAME(PROPERTY) \
793
  , "INTERFACE_" #PROPERTY
794

795
796
//----------------------------------------------------------------------------
static const char* targetPropertyTransitiveWhitelist[] = {
797
798
  0
  CM_FOR_EACH_TRANSITIVE_PROPERTY_NAME(TRANSITIVE_PROPERTY_NAME)
799
800
};

801
802
#undef TRANSITIVE_PROPERTY_NAME

803
std::string getLinkedTargetsContent(const std::vector<cmTarget*> &targets,
804
805
                                  cmTarget const* target,
                                  cmTarget const* headTarget,
806
807
808
809
810
811
812
813
                                  cmGeneratorExpressionContext *context,
                                  cmGeneratorExpressionDAGChecker *dagChecker,
                                  const std::string &interfacePropertyName)
{
  cmGeneratorExpression ge(context->Backtrace);

  std::string sep;
  std::string depString;
814
815
816
  for (std::vector<cmTarget*>::const_iterator
      it = targets.begin();
      it != targets.end(); ++it)
817
    {
818
    if (*it == target)
819
820
821
822
823
824
      {
      // Broken code can have a target in its own link interface.
      // Don't follow such link interface entries so as not to create a
      // self-referencing loop.
      continue;
      }
825
826
827
828
    depString +=
      sep + "$<TARGET_PROPERTY:" +
        (*it)->GetName() + "," + interfacePropertyName + ">";
    sep = ";";
829
830
831
832
833
    }
  cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(depString);
  std::string linkedTargetsContent = cge->Evaluate(context->Makefile,
                      context->Config,
                      context->Quiet,
834
                      headTarget,
835
836
837
838
839
840
841
842
843
                      target,
                      dagChecker);
  if (cge->GetHadContextSensitiveCondition())
    {
    context->HadContextSensitiveCondition = true;
    }
  return linkedTargetsContent;
}

844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
std::string getLinkedTargetsContent(const std::vector<std::string> &libraries,
                                  cmTarget const* target,
                                  cmTarget const* headTarget,
                                  cmGeneratorExpressionContext *context,
                                  cmGeneratorExpressionDAGChecker *dagChecker,
                                  const std::string &interfacePropertyName)
{
  std::vector<cmTarget*> tgts;
  for (std::vector<std::string>::const_iterator
      it = libraries.begin();
      it != libraries.end(); ++it)
    {
    if (cmTarget *tgt = context->Makefile->FindTargetToUse(*it))
      {
      tgts.push_back(tgt);
      }
    }
  return getLinkedTargetsContent(tgts, target, headTarget, context,
                                 dagChecker, interfacePropertyName);
}

865
//----------------------------------------------------------------------------
866
static const struct TargetPropertyNode : public cmGeneratorExpressionNode
867
868
869
870
{
  TargetPropertyNode() {}

  // This node handles errors on parameter count itself.
871
  virtual int NumExpectedParameters() const { return OneOrMoreParameters; }
872
873
874

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
875
                       const GeneratorExpressionContent *content,
876
877
                       cmGeneratorExpressionDAGChecker *dagCheckerParent
                      ) const
878
879
880
881
882
883
884
  {
    if (parameters.size() != 1 && parameters.size() != 2)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<TARGET_PROPERTY:...> expression requires one or two parameters");
      return std::string();
      }
885
886
    cmsys::RegularExpression propertyNameValidator;
    propertyNameValidator.compile("^[A-Za-z0-9_]+$");
887

888
    cmTarget const* target = context->HeadTarget;
889
    std::string propertyName = *parameters.begin();
890
891
892
893
894
895
896
897
898
899
900

    if (!target && parameters.size() == 1)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<TARGET_PROPERTY:prop> may only be used with targets.  It may not "
          "be used with add_custom_command.  Specify the target to read a "
          "property from using the $<TARGET_PROPERTY:tgt,prop> signature "
          "instead.");
      return std::string();
      }

901
902
    if (parameters.size() == 2)
      {
903
      if (parameters.begin()->empty() && parameters[1].empty())
904
905
906
907
908
909
910
911
912
913
914
915
916
917
        {
        reportError(context, content->GetOriginalExpression(),
            "$<TARGET_PROPERTY:tgt,prop> expression requires a non-empty "
            "target name and property name.");
        return std::string();
        }
      if (parameters.begin()->empty())
        {
        reportError(context, content->GetOriginalExpression(),
            "$<TARGET_PROPERTY:tgt,prop> expression requires a non-empty "
            "target name.");
        return std::string();
        }

918
      std::string targetName = parameters.front();
919
      propertyName = parameters[1];
920
      if (!cmGeneratorExpression::IsValidTargetName(targetName))
921
        {
922
        if (!propertyNameValidator.find(propertyName.c_str()))
923
924
925
926
927
928
929
930
931
          {
          ::reportError(context, content->GetOriginalExpression(),
                        "Target name and property name not supported.");
          return std::string();
          }
        ::reportError(context, content->GetOriginalExpression(),
                      "Target name not supported.");
        return std::string();
        }
932
933
      if(propertyName == "ALIASED_TARGET")
        {
934
        if(context->Makefile->IsAlias(targetName))
935
          {
936
          if(cmTarget* tgt = context->Makefile->FindTargetToUse(targetName))
937
938
939
940
941
942
            {
            return tgt->GetName();
            }
          }
        return "";
        }
943
      target = context->Makefile->FindTargetToUse(targetName);
944
945
946
947
948

      if (!target)
        {
        cmOStringStream e;
        e << "Target \""
949
          << targetName
950
951
          << "\" not found.";
        reportError(context, content->GetOriginalExpression(), e.str());
952
        return std::string();
953
        }
954
        context->AllTargets.insert(target);
955
956
      }

957
958
959
960
    if (target == context->HeadTarget)
      {
      // Keep track of the properties seen while processing.
      // The evaluation of the LINK_LIBRARIES generator expressions
961
962
      // will check this to ensure that properties have one consistent
      // value for all evaluations.
963
964
965
      context->SeenTargetProperties.insert(propertyName);
      }

966
967
968
969
970
971
972
973
    if (propertyName.empty())
      {
      reportError(context, content->GetOriginalExpression(),
          "$<TARGET_PROPERTY:...> expression requires a non-empty property "
          "name.");
      return std::string();
      }

974
    if (!propertyNameValidator.find(propertyName.c_str()))
975
976
977
978
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "Property name not supported.");
      return std::string();
979
      }
980

981
982
    assert(target);

983
984
    if (propertyName == "LINKER_LANGUAGE")
      {
985
986
      if (target->LinkLanguagePropagatesToDependents() &&
          dagCheckerParent && dagCheckerParent->EvaluatingLinkLibraries())
987
988
989
        {
        reportError(context, content->GetOriginalExpression(),
            "LINKER_LANGUAGE target property can not be used while evaluating "
990
            "link libraries for a static library");
991
992
        return std::string();
        }
993
      return target->GetLinkerLanguage(context->Config);
994
995
      }

996
997
998
999
1000
1001
    cmGeneratorExpressionDAGChecker dagChecker(context->Backtrace,
                                               target->GetName(),
                                               propertyName,
                                               content,
                                               dagCheckerParent);

1002
    switch (dagChecker.Check())
1003
      {
1004
    case cmGeneratorExpressionDAGChecker::SELF_REFERENCE:
1005
      dagChecker.ReportError(context, content->GetOriginalExpression());
1006
      return std::string();
1007
1008
1009
    case cmGeneratorExpressionDAGChecker::CYCLIC_REFERENCE:
      // No error. We just skip cyclic references.
      return std::string();
1010
    case cmGeneratorExpressionDAGChecker::ALREADY_SEEN:
1011
      for (size_t i = 1;
1012
          i < cmArraySize(targetPropertyTransitiveWhitelist);
1013
1014
1015
1016
1017
1018
1019
1020
          ++i)
        {
        if (targetPropertyTransitiveWhitelist[i] == propertyName)
          {
          // No error. We're not going to find anything new here.
          return std::string();
          }
        }
1021
1022
    case cmGeneratorExpressionDAGChecker::DAG:
      break;
1023
1024
      }

1025
    const char *prop = target->GetProperty(propertyName.c_str());
1026
1027

    if (dagCheckerParent)
1028
      {
1029
      if (dagCheckerParent->EvaluatingLinkLibraries())
1030
        {
1031
1032
1033
1034
        if(!prop)
          {
          return std::string();
          }
1035
        }
1036
      else
1037
        {
1038
1039
1040
1041
1042
1043
1044
#define ASSERT_TRANSITIVE_PROPERTY_METHOD(METHOD) \
  dagCheckerParent->METHOD () ||

        assert(
          CM_FOR_EACH_TRANSITIVE_PROPERTY_METHOD(
                                            ASSERT_TRANSITIVE_PROPERTY_METHOD)
          false);
1045
        }
1046
#undef ASSERT_TRANSITIVE_PROPERTY_METHOD
1047
1048
1049
1050
1051
      }

    std::string linkedTargetsContent;

    std::string interfacePropertyName;
1052

1053
1054
1055
1056
1057
1058
1059
1060
1061
#define POPULATE_INTERFACE_PROPERTY_NAME(prop) \
    if (propertyName == #prop || propertyName == "INTERFACE_" #prop) \
      { \
      interfacePropertyName = "INTERFACE_" #prop; \
      } \
    else

    CM_FOR_EACH_TRANSITIVE_PROPERTY_NAME(POPULATE_INTERFACE_PROPERTY_NAME)
      // Note that the above macro terminates with an else
1062
1063
    /* else */ if (cmHasLiteralPrefix(propertyName.c_str(),
                           "COMPILE_DEFINITIONS_"))
1064
      {
1065
1066
1067
1068
1069
1070
      cmPolicies::PolicyStatus polSt =
                      context->Makefile->GetPolicyStatus(cmPolicies::CMP0043);
      if (polSt == cmPolicies::WARN || polSt == cmPolicies::OLD)
        {
        interfacePropertyName = "INTERFACE_COMPILE_DEFINITIONS";
        }
1071
      }
1072
#undef POPULATE_INTERFACE_PROPERTY_NAME
1073

1074
1075
    cmTarget const* headTarget = context->HeadTarget
                               ? context->HeadTarget : target;
1076

1077
1078
1079
1080
1081
    const char * const *transBegin =
                        cmArrayBegin(targetPropertyTransitiveWhitelist) + 1;
    const char * const *transEnd =
                        cmArrayEnd(targetPropertyTransitiveWhitelist);

1082
    if (std::find_if(transBegin, transEnd,
1083
                     cmStrCmp(propertyName)) != transEnd)
1084
      {
1085

1086
1087
1088
1089
      std::vector<cmTarget*> tgts;
      target->GetTransitivePropertyTargets(context->Config,
                                                 headTarget, tgts);
      if (!tgts.empty())
1090
        {
1091
        linkedTargetsContent =
1092
                  getLinkedTargetsContent(tgts, target,
1093
                                          headTarget,
1094
1095
                                          context, &dagChecker,
                                          interfacePropertyName);
1096
1097
        }
      }
1098
    else if (std::find_if(transBegin, transEnd,
1099
                          cmStrCmp(interfacePropertyName)) != transEnd)
1100
      {
1101
1102
1103
      const cmTarget::LinkImplementation *impl
          = target->GetLinkImplementationLibraries(context->Config,
                                                   headTarget);
1104
1105
1106
1107
      if(impl)
        {
        linkedTargetsContent =
                  getLinkedTargetsContent(impl->Libraries, target,
1108
                                          headTarget,
1109
1110
                                          context, &dagChecker,
                                          interfacePropertyName);
1111
1112
1113
        }
      }

1114
1115
1116
    linkedTargetsContent =
          cmGeneratorExpression::StripEmptyListElements(linkedTargetsContent);

1117
1118
    if (!prop)
      {
1119
1120
      if (target->IsImported()
          || target->GetType() == cmTarget::INTERFACE_LIBRARY)
1121
1122
        {
        return linkedTargetsContent;
1123
1124
1125
1126
        }
      if (target->IsLinkInterfaceDependentBoolProperty(propertyName,
                                                       context->Config))
        {
1127
        context->HadContextSensitiveCondition = true;
1128
1129
1130
1131
        return target->GetLinkInterfaceDependentBoolProperty(
                                                propertyName,
                                                context->Config) ? "1" : "0";
        }
1132
1133
1134
      if (target->IsLinkInterfaceDependentStringProperty(propertyName,
                                                         context->Config))
        {
1135
        context->HadContextSensitiveCondition = true;
1136
1137
        const char *propContent =
                              target->GetLinkInterfaceDependentStringProperty(
1138
1139
                                                propertyName,
                                                context->Config);
1140
        return propContent ? propContent : "";
1141
        }
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
      if (target->IsLinkInterfaceDependentNumberMinProperty(propertyName,
                                                         context->Config))
        {
        context->HadContextSensitiveCondition = true;
        const char *propContent =
                          target->GetLinkInterfaceDependentNumberMinProperty(
                                                propertyName,
                                                context->Config);
        return propContent ? propContent : "";
        }
      if (target->IsLinkInterfaceDependentNumberMaxProperty(propertyName,
                                                         context->Config))
        {
        context->HadContextSensitiveCondition = true;
        const char *propContent =
                          target->GetLinkInterfaceDependentNumberMaxProperty(
                                                propertyName,
                                                context->Config);
        return propContent ? propContent : "";
        }
1162

1163
      return linkedTargetsContent;
1164
1165
      }

1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
    if (!target->IsImported()
        && dagCheckerParent && !dagCheckerParent->EvaluatingLinkLibraries())
      {
      if (target->IsLinkInterfaceDependentNumberMinProperty(propertyName,
                                                        context->Config))
        {
        context->HadContextSensitiveCondition = true;
        const char *propContent =
                            target->GetLinkInterfaceDependentNumberMinProperty(
                                                propertyName,
                                                context->Config);
        return propContent ? propContent : "";
        }
      if (target->IsLinkInterfaceDependentNumberMaxProperty(propertyName,
                                                        context->Config))
        {
        context->HadContextSensitiveCondition = true;
        const char *propContent =
                            target->GetLinkInterfaceDependentNumberMaxProperty(
                                                propertyName,
                                                context->Config);
        return propContent ? propContent : "";
        }
      }
1190
    for (size_t i = 1;
1191
         i < cmArraySize(targetPropertyTransitiveWhitelist);
1192
1193
         ++i)
      {
1194
      if (targetPropertyTransitiveWhitelist[i] == interfacePropertyName)
1195
1196
        {
        cmGeneratorExpression ge(context->Backtrace);
1197
1198
        cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(prop);
        std::string result = cge->Evaluate(context->Makefile,
1199
1200
                            context->Config,
                            context->Quiet,
1201
                            headTarget,
1202
1203
                            target,
                            &dagChecker);
1204
1205
1206
1207
1208

        if (cge->GetHadContextSensitiveCondition())
          {
          context->HadContextSensitiveCondition = true;
          }
1209
1210
1211
1212
        if (!linkedTargetsContent.empty())
          {
          result += (result.empty() ? "" : ";") + linkedTargetsContent;
          }
1213
        return result;
1214
1215
1216
        }
      }
    return prop;
1217
1218
1219
  }
} targetPropertyNode;

1220
1221
1222
1223
1224
1225
1226
//----------------------------------------------------------------------------
static const struct TargetNameNode : public cmGeneratorExpressionNode
{
  TargetNameNode() {}

  virtual bool GeneratesContent() const { return true; }

1227
  virtual bool AcceptsArbitraryContentParameter() const { return true; }
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
  virtual bool RequiresLiteralInput() const { return true; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
  {
    return parameters.front();
  }

  virtual int NumExpectedParameters() const { return 1; }

} targetNameNode;

1242
1243
//----------------------------------------------------------------------------
static const char* targetPolicyWhitelist[] = {
1244
1245
1246
1247
1248
1249
1250
  0
#define TARGET_POLICY_STRING(POLICY) \
  , #POLICY

  CM_FOR_EACH_TARGET_POLICY(TARGET_POLICY_STRING)

#undef TARGET_POLICY_STRING
1251
1252
};

1253
1254
cmPolicies::PolicyStatus statusForTarget(cmTarget const* tgt,
                                         const char *policy)
1255
1256
1257
1258
1259
1260
1261
{
#define RETURN_POLICY(POLICY) \
  if (strcmp(policy, #POLICY) == 0) \
  { \
    return tgt->GetPolicyStatus ## POLICY (); \
  } \

1262
  CM_FOR_EACH_TARGET_POLICY(RETURN_POLICY)
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277

#undef RETURN_POLICY

  assert("!Unreachable code. Not a valid policy");
  return cmPolicies::WARN;
}

cmPolicies::PolicyID policyForString(const char *policy_id)
{
#define RETURN_POLICY_ID(POLICY_ID) \
  if (strcmp(policy_id, #POLICY_ID) == 0) \
  { \
    return cmPolicies:: POLICY_ID; \
  } \

1278
  CM_FOR_EACH_TARGET_POLICY(RETURN_POLICY_ID)
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304

#undef RETURN_POLICY_ID

  assert("!Unreachable code. Not a valid policy");
  return cmPolicies::CMP0002;
}

//----------------------------------------------------------------------------
static const struct TargetPolicyNode : public cmGeneratorExpressionNode
{
  TargetPolicyNode() {}

  virtual int NumExpectedParameters() const { return 1; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context ,
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *) const
  {
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<TARGET_POLICY:prop> may only be used with targets.  It may not "
          "be used with add_custom_command.");
      return std::string();
      }
1305
1306
1307

    context->HadContextSensitiveCondition = true;

1308
    for (size_t i = 1; i < cmArraySize(targetPolicyWhitelist); ++i)
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
      {
      const char *policy = targetPolicyWhitelist[i];
      if (parameters.front() == policy)
        {
        cmMakefile *mf = context->HeadTarget->GetMakefile();
        switch(statusForTarget(context->HeadTarget, policy))
          {
          case cmPolicies::WARN:
            mf->IssueMessage(cmake::AUTHOR_WARNING,
                             mf->GetPolicies()->
                             GetPolicyWarning(policyForString(policy)));
          case cmPolicies::REQUIRED_IF_USED:
          case cmPolicies::REQUIRED_ALWAYS:
          case cmPolicies::OLD:
            return "0";
          case cmPolicies::NEW:
            return "1";
          }
        }
      }
    reportError(context, content->GetOriginalExpression(),
      "$<TARGET_POLICY:prop> may only be used with a limited number of "
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
      "policies.  Currently it may be used with the following policies:\n"

#define STRINGIFY_HELPER(X) #X
#define STRINGIFY(X) STRINGIFY_HELPER(X)

#define TARGET_POLICY_LIST_ITEM(POLICY) \
      " * " STRINGIFY(POLICY) "\n"

      CM_FOR_EACH_TARGET_POLICY(TARGET_POLICY_LIST_ITEM)

#undef TARGET_POLICY_LIST_ITEM
1342
1343
1344
1345
1346
1347
      );
    return std::string();
  }

} targetPolicyNode;

Stephen Kelly's avatar
Stephen Kelly committed
1348
1349
1350
1351
1352
//----------------------------------------------------------------------------
static const struct InstallPrefixNode : public cmGeneratorExpressionNode
{
  InstallPrefixNode() {}

1353
  virtual bool GeneratesContent() const { return true; }
Stephen Kelly's avatar
Stephen Kelly committed
1354
1355
1356
  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
1357
1358
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
Stephen Kelly's avatar
Stephen Kelly committed
1359
1360
                       cmGeneratorExpressionDAGChecker *) const
  {
1361
1362
1363
    reportError(context, content->GetOriginalExpression(),
                "INSTALL_PREFIX is a marker for install(EXPORT) only.  It "
                "should never be evaluated.");
Stephen Kelly's avatar
Stephen Kelly committed
1364
1365
1366
1367
1368
    return std::string();
  }

} installPrefixNode;

1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
//----------------------------------------------------------------------------
template<bool linker, bool soname>
struct TargetFilesystemArtifactResultCreator
{
  static std::string Create(cmTarget* target,
                            cmGeneratorExpressionContext *context,
                            const GeneratorExpressionContent *content);
};

//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultCreator<false, true>
{
  static std::string Create(cmTarget* target,
                            cmGeneratorExpressionContext *context,
                            const GeneratorExpressionContent *content)
  {
    // The target soname file (.so.1).
    if(target->IsDLLPlatform())
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "TARGET_SONAME_FILE is not allowed "
                    "for DLL target platforms.");
      return std::string();
      }
    if(target->GetType() != cmTarget::SHARED_LIBRARY)
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "TARGET_SONAME_FILE is allowed only for "
                    "SHARED libraries.");
      return std::string();
      }
    std::string result = target->GetDirectory(context->Config);
    result += "/";
    result += target->GetSOName(context->Config);
    return result;
  }
};

//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultCreator<true, false>
{
  static std::string Create(cmTarget* target,
                            cmGeneratorExpressionContext *context,
                            const GeneratorExpressionContent *content)
  {
    // The file used to link to the target (.so, .lib, .a).
    if(!target->IsLinkable())
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "TARGET_LINKER_FILE is allowed only for libraries and "
                    "executables with ENABLE_EXPORTS.");
      return std::string();
      }
    return target->GetFullPath(context->Config,
                               target->HasImportLibrary());
  }
};

//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultCreator<false, false>
{
  static std::string Create(cmTarget* target,
                            cmGeneratorExpressionContext *context,
                            const GeneratorExpressionContent *)
  {
    return target->GetFullPath(context->Config, false, true);
  }
};


//----------------------------------------------------------------------------
template<bool dirQual, bool nameQual>
struct TargetFilesystemArtifactResultGetter
{
  static std::string Get(const std::string &result);
};

//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultGetter<false, true>
{
  static std::string Get(const std::string &result)
  { return cmSystemTools::GetFilenameName(result); }
};

//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultGetter<true, false>
{
  static std::string Get(const std::string &result)
  { return cmSystemTools::GetFilenamePath(result); }
};

//----------------------------------------------------------------------------
template<>
struct TargetFilesystemArtifactResultGetter<false, false>
{
  static std::string Get(const std::string &result)
  { return result; }
};

//----------------------------------------------------------------------------
template<bool linker, bool soname, bool dirQual, bool nameQual>
struct TargetFilesystemArtifact : public cmGeneratorExpressionNode
{
  TargetFilesystemArtifact() {}

  virtual int NumExpectedParameters() const { return 1; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
1483
                       const GeneratorExpressionContent *content,
1484
                       cmGeneratorExpressionDAGChecker *dagChecker) const