cmGeneratorExpressionEvaluator.cxx 60.5 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
22
#include <assert.h>

23
//----------------------------------------------------------------------------
24
25
26
27
#if !defined(__SUNPRO_CC) || __SUNPRO_CC > 0x510
static
#endif
void reportError(cmGeneratorExpressionContext *context,
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
                        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
{
48
49
50
51
52
  enum {
    DynamicParameters = 0,
    OneOrMoreParameters = -1,
    ZeroOrMoreParameters = -2
  };
53
54
55
56
  virtual ~cmGeneratorExpressionNode() {}

  virtual bool GeneratesContent() const { return true; }

57
58
  virtual bool RequiresLiteralInput() const { return false; }

59
  virtual bool AcceptsArbitraryContentParameter() const
60
61
62
63
64
65
    { return false; }

  virtual int NumExpectedParameters() const { return 1; }

  virtual std::string Evaluate(const std::vector<std::string> &parameters,
                               cmGeneratorExpressionContext *context,
66
67
                               const GeneratorExpressionContent *content,
                               cmGeneratorExpressionDAGChecker *dagChecker
68
69
70
71
72
73
74
75
76
77
                              ) const = 0;
};

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

  virtual bool GeneratesContent() const { return false; }

78
  virtual bool AcceptsArbitraryContentParameter() const { return true; }
79

80
81
  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *,
82
83
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
84
85
86
87
88
89
90
91
92
93
  {
    return std::string();
  }
} zeroNode;

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

94
  virtual bool AcceptsArbitraryContentParameter() const { return true; }
95

96
  std::string Evaluate(const std::vector<std::string> &parameters,
97
                       cmGeneratorExpressionContext *,
98
99
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
100
  {
101
    return parameters.front();
102
103
104
  }
} oneNode;

105
106
107
108
109
110
//----------------------------------------------------------------------------
static const struct OneNode buildInterfaceNode;

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

111
112
113
114
115
//----------------------------------------------------------------------------
#define BOOLEAN_OP_NODE(OPNAME, OP, SUCCESS_VALUE, FAILURE_VALUE) \
static const struct OP ## Node : public cmGeneratorExpressionNode \
{ \
  OP ## Node () {} \
116
  virtual int NumExpectedParameters() const { return OneOrMoreParameters; } \
117
118
119
 \
  std::string Evaluate(const std::vector<std::string> &parameters, \
                       cmGeneratorExpressionContext *context, \
120
121
                       const GeneratorExpressionContent *content, \
                       cmGeneratorExpressionDAGChecker *) const \
122
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
  { \
    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() {}
151

152
153
  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
154
155
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *) const
156
157
158
159
160
161
162
163
164
165
166
  {
    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;

167
168
169
170
171
172
173
174
175
//----------------------------------------------------------------------------
static const struct BoolNode : public cmGeneratorExpressionNode
{
  BoolNode() {}

  virtual int NumExpectedParameters() const { return 1; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *,
176
177
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
178
179
180
181
182
183
184
185
186
187
188
189
190
191
  {
    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 *,
192
193
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
194
  {
195
    return *parameters.begin() == parameters[1] ? "1" : "0";
196
197
198
  }
} strEqualNode;

199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
//----------------------------------------------------------------------------
static const struct LowerCaseNode : public cmGeneratorExpressionNode
{
  LowerCaseNode() {}

  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() {}

  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() {}

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

241
242
243
244
245
246
247
248
249
//----------------------------------------------------------------------------
static const struct Angle_RNode : public cmGeneratorExpressionNode
{
  Angle_RNode() {}

  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *,
250
251
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
252
253
254
255
256
257
258
259
260
261
262
263
264
265
  {
    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 *,
266
267
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
268
269
270
271
272
  {
    return ",";
  }
} commaNode;

273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
//----------------------------------------------------------------------------
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;

289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
//----------------------------------------------------------------------------
struct CompilerIdNode : public cmGeneratorExpressionNode
{
  CompilerIdNode() {}

  virtual int NumExpectedParameters() const { return ZeroOrMoreParameters; }

  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";
      }

    if (cmsysString_strcasecmp(parameters.begin()->c_str(), compilerId) == 0)
      {
      return "1";
      }
    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 (parameters.size() != 0 && parameters.size() != 1)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<C_COMPILER_ID> expression requires one or two parameters");
      return std::string();
      }
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<C_COMPILER_ID> may only be used with targets.  It may not "
          "be used with add_custom_command.");
      }
    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 (parameters.size() != 0 && parameters.size() != 1)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<CXX_COMPILER_ID> expression requires one or two parameters");
      return std::string();
      }
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<CXX_COMPILER_ID> may only be used with targets.  It may not "
          "be used with add_custom_command.");
      }
    return this->EvaluateWithLanguage(parameters, context, content,
                                      dagChecker, "CXX");
  }
} cxxCompilerIdNode;

384
385
386
387
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
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
//----------------------------------------------------------------------------
struct CompilerVersionNode : public cmGeneratorExpressionNode
{
  CompilerVersionNode() {}

  virtual int NumExpectedParameters() const { return ZeroOrMoreParameters; }

  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 (parameters.size() != 0 && parameters.size() != 1)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<C_COMPILER_VERSION> expression requires one or two parameters");
      return std::string();
      }
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<C_COMPILER_VERSION> may only be used with targets.  It may not "
          "be used with add_custom_command.");
      }
    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 (parameters.size() != 0 && parameters.size() != 1)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<CXX_COMPILER_VERSION> expression requires one or two "
          "parameters");
      return std::string();
      }
    if (!context->HeadTarget)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<CXX_COMPILER_VERSION> may only be used with targets.  It may "
          "not be used with add_custom_command.");
      }
    return this->EvaluateWithLanguage(parameters, context, content,
                                      dagChecker, "CXX");
  }
} cxxCompilerVersionNode;


480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
//----------------------------------------------------------------------------
struct PlatformIdNode : public cmGeneratorExpressionNode
{
  PlatformIdNode() {}

  virtual int NumExpectedParameters() const { return ZeroOrMoreParameters; }

  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";
      }

    if (cmsysString_strcasecmp(parameters.begin()->c_str(), platformId) == 0)
      {
      return "1";
      }
    return "0";
  }
} platformIdNode;

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
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
//----------------------------------------------------------------------------
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;

567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
//----------------------------------------------------------------------------
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;

585
586
587
588
//----------------------------------------------------------------------------
static const struct ConfigurationNode : public cmGeneratorExpressionNode
{
  ConfigurationNode() {}
589

590
591
592
593
  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
                       cmGeneratorExpressionContext *context,
594
595
                       const GeneratorExpressionContent *,
                       cmGeneratorExpressionDAGChecker *) const
596
  {
597
    context->HadContextSensitiveCondition = true;
598
599
600
601
602
603
604
605
606
607
608
609
610
    return context->Config ? context->Config : "";
  }
} configurationNode;

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

  virtual int NumExpectedParameters() const { return 1; }

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
611
612
                       const GeneratorExpressionContent *content,
                       cmGeneratorExpressionDAGChecker *) const
613
614
615
616
617
618
619
620
621
  {
    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();
      }
622
    context->HadContextSensitiveCondition = true;
623
624
625
626
627
    if (!context->Config)
      {
      return parameters.front().empty() ? "1" : "0";
      }

628
629
630
631
632
633
634
635
636
637
638
639
    if (cmsysString_strcasecmp(parameters.begin()->c_str(),
                                  context->Config) == 0)
      {
      return "1";
      }

    if (context->CurrentTarget
        && context->CurrentTarget->IsImported())
      {
      const char* loc = 0;
      const char* imp = 0;
      std::string suffix;
640
      if (context->CurrentTarget->GetMappedConfig(context->Config,
641
642
                                                  &loc,
                                                  &imp,
643
644
645
646
647
648
649
                                                  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_";
650
        mapProp += cmSystemTools::UpperCase(context->Config);
651
652
653
654
655
656
        if(const char* mapValue =
                        context->CurrentTarget->GetProperty(mapProp.c_str()))
          {
          cmSystemTools::ExpandListArgument(cmSystemTools::UpperCase(mapValue),
                                            mappedConfigs);
          return std::find(mappedConfigs.begin(), mappedConfigs.end(),
657
658
                           cmSystemTools::UpperCase(parameters.front()))
              != mappedConfigs.end() ? "1" : "0";
659
660
          }
        }
661
662
      }
    return "0";
663
664
665
  }
} configurationTestNode;

666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
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;

694
#define TRANSITIVE_PROPERTY_NAME(PROPERTY) \
695
  , "INTERFACE_" #PROPERTY
696

697
698
//----------------------------------------------------------------------------
static const char* targetPropertyTransitiveWhitelist[] = {
699
700
  0
  CM_FOR_EACH_TRANSITIVE_PROPERTY_NAME(TRANSITIVE_PROPERTY_NAME)
701
702
};

703
std::string getLinkedTargetsContent(const std::vector<std::string> &libraries,
704
705
                                  cmTarget const* target,
                                  cmTarget const* headTarget,
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
                                  cmGeneratorExpressionContext *context,
                                  cmGeneratorExpressionDAGChecker *dagChecker,
                                  const std::string &interfacePropertyName)
{
  cmGeneratorExpression ge(context->Backtrace);

  std::string sep;
  std::string depString;
  for (std::vector<std::string>::const_iterator
      it = libraries.begin();
      it != libraries.end(); ++it)
    {
    if (*it == target->GetName())
      {
      // 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;
      }
    if (context->Makefile->FindTargetToUse(it->c_str()))
      {
      depString +=
        sep + "$<TARGET_PROPERTY:" + *it + "," + interfacePropertyName + ">";
      sep = ";";
      }
    }
  cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(depString);
  std::string linkedTargetsContent = cge->Evaluate(context->Makefile,
                      context->Config,
                      context->Quiet,
736
                      headTarget,
737
738
739
740
741
742
743
744
745
                      target,
                      dagChecker);
  if (cge->GetHadContextSensitiveCondition())
    {
    context->HadContextSensitiveCondition = true;
    }
  return linkedTargetsContent;
}

746
//----------------------------------------------------------------------------
747
static const struct TargetPropertyNode : public cmGeneratorExpressionNode
748
749
750
751
{
  TargetPropertyNode() {}

  // This node handles errors on parameter count itself.
752
  virtual int NumExpectedParameters() const { return OneOrMoreParameters; }
753
754
755

  std::string Evaluate(const std::vector<std::string> &parameters,
                       cmGeneratorExpressionContext *context,
756
                       const GeneratorExpressionContent *content,
757
758
                       cmGeneratorExpressionDAGChecker *dagCheckerParent
                      ) const
759
760
761
762
763
764
765
  {
    if (parameters.size() != 1 && parameters.size() != 2)
      {
      reportError(context, content->GetOriginalExpression(),
          "$<TARGET_PROPERTY:...> expression requires one or two parameters");
      return std::string();
      }
766
767
    cmsys::RegularExpression propertyNameValidator;
    propertyNameValidator.compile("^[A-Za-z0-9_]+$");
768

769
    cmTarget const* target = context->HeadTarget;
770
    std::string propertyName = *parameters.begin();
771
772
773
774
775
776
777
778
779
780
781

    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();
      }

782
783
    if (parameters.size() == 2)
      {
784
      if (parameters.begin()->empty() && parameters[1].empty())
785
786
787
788
789
790
791
792
793
794
795
796
797
798
        {
        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();
        }

799
      std::string targetName = parameters.front();
800
      propertyName = parameters[1];
801
      if (!cmGeneratorExpression::IsValidTargetName(targetName))
802
        {
803
        if (!propertyNameValidator.find(propertyName.c_str()))
804
805
806
807
808
809
810
811
812
          {
          ::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();
        }
813
814
815
816
817
818
819
820
821
822
823
824
      if(propertyName == "ALIASED_TARGET")
        {
        if(context->Makefile->IsAlias(targetName.c_str()))
          {
          if(cmTarget* tgt =
                      context->Makefile->FindTargetToUse(targetName.c_str()))
            {
            return tgt->GetName();
            }
          }
        return "";
        }
825
      target = context->Makefile->FindTargetToUse(
826
                                                targetName.c_str());
827
828
829
830
831

      if (!target)
        {
        cmOStringStream e;
        e << "Target \""
832
          << targetName
833
834
          << "\" not found.";
        reportError(context, content->GetOriginalExpression(), e.str());
835
        return std::string();
836
        }
837
        context->AllTargets.insert(target);
838
839
      }

840
841
842
843
    if (target == context->HeadTarget)
      {
      // Keep track of the properties seen while processing.
      // The evaluation of the LINK_LIBRARIES generator expressions
844
845
      // will check this to ensure that properties have one consistent
      // value for all evaluations.
846
847
848
      context->SeenTargetProperties.insert(propertyName);
      }

849
850
851
852
853
854
855
856
    if (propertyName.empty())
      {
      reportError(context, content->GetOriginalExpression(),
          "$<TARGET_PROPERTY:...> expression requires a non-empty property "
          "name.");
      return std::string();
      }

857
    if (!propertyNameValidator.find(propertyName.c_str()))
858
859
860
861
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "Property name not supported.");
      return std::string();
862
      }
863

864
865
    assert(target);

866
867
    if (propertyName == "LINKER_LANGUAGE")
      {
868
869
      if (target->LinkLanguagePropagatesToDependents() &&
          dagCheckerParent && dagCheckerParent->EvaluatingLinkLibraries())
870
871
872
        {
        reportError(context, content->GetOriginalExpression(),
            "LINKER_LANGUAGE target property can not be used while evaluating "
873
            "link libraries for a static library");
874
875
876
877
878
879
        return std::string();
        }
      const char *lang = target->GetLinkerLanguage(context->Config);
      return lang ? lang : "";
      }

880
881
882
883
884
885
    cmGeneratorExpressionDAGChecker dagChecker(context->Backtrace,
                                               target->GetName(),
                                               propertyName,
                                               content,
                                               dagCheckerParent);

886
    switch (dagChecker.check())
887
      {
888
    case cmGeneratorExpressionDAGChecker::SELF_REFERENCE:
889
890
      dagChecker.reportError(context, content->GetOriginalExpression());
      return std::string();
891
892
893
    case cmGeneratorExpressionDAGChecker::CYCLIC_REFERENCE:
      // No error. We just skip cyclic references.
      return std::string();
894
    case cmGeneratorExpressionDAGChecker::ALREADY_SEEN:
895
      for (size_t i = 1;
896
          i < cmArraySize(targetPropertyTransitiveWhitelist);
897
898
899
900
901
902
903
904
          ++i)
        {
        if (targetPropertyTransitiveWhitelist[i] == propertyName)
          {
          // No error. We're not going to find anything new here.
          return std::string();
          }
        }
905
906
    case cmGeneratorExpressionDAGChecker::DAG:
      break;
907
908
      }

909
    const char *prop = target->GetProperty(propertyName.c_str());
910
911

    if (dagCheckerParent)
912
      {
913
      if (dagCheckerParent->EvaluatingLinkLibraries())
914
        {
915
916
917
918
        if(!prop)
          {
          return std::string();
          }
919
        }
920
      else
921
        {
922
923
924
925
926
927
928
#define ASSERT_TRANSITIVE_PROPERTY_METHOD(METHOD) \
  dagCheckerParent->METHOD () ||

        assert(
          CM_FOR_EACH_TRANSITIVE_PROPERTY_METHOD(
                                            ASSERT_TRANSITIVE_PROPERTY_METHOD)
          false);
929
930
931
932
933
934
        }
      }

    std::string linkedTargetsContent;

    std::string interfacePropertyName;
935

936
937
938
939
940
941
942
943
944
#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
945
946
    /* else */ if (cmHasLiteralPrefix(propertyName.c_str(),
                           "COMPILE_DEFINITIONS_"))
947
948
949
      {
      interfacePropertyName = "INTERFACE_COMPILE_DEFINITIONS";
      }
950
#undef POPULATE_INTERFACE_PROPERTY_NAME
951

952
953
    cmTarget const* headTarget = context->HeadTarget
                               ? context->HeadTarget : target;
954

955
956
957
958
959
    const char * const *transBegin =
                        cmArrayBegin(targetPropertyTransitiveWhitelist) + 1;
    const char * const *transEnd =
                        cmArrayEnd(targetPropertyTransitiveWhitelist);

960
    if (std::find_if(transBegin, transEnd,
961
                     cmStrCmp(propertyName)) != transEnd)
962
      {
963
964
965
966
967

      std::vector<std::string> libs;
      target->GetTransitivePropertyLinkLibraries(context->Config,
                                                 headTarget, libs);
      if (!libs.empty())
968
        {
969
        linkedTargetsContent =
970
                  getLinkedTargetsContent(libs, target,
971
                                          headTarget,
972
973
                                          context, &dagChecker,
                                          interfacePropertyName);
974
975
        }
      }
976
    else if (std::find_if(transBegin, transEnd,
977
                          cmStrCmp(interfacePropertyName)) != transEnd)
978
979
980
      {
      const cmTarget::LinkImplementation *impl = target->GetLinkImplementation(
                                                    context->Config,
981
                                                    headTarget);
982
983
984
985
      if(impl)
        {
        linkedTargetsContent =
                  getLinkedTargetsContent(impl->Libraries, target,
986
                                          headTarget,
987
988
                                          context, &dagChecker,
                                          interfacePropertyName);
989
990
991
        }
      }

992
993
994
    linkedTargetsContent =
          cmGeneratorExpression::StripEmptyListElements(linkedTargetsContent);

995
996
    if (!prop)
      {
997
998
      if (target->IsImported()
          || target->GetType() == cmTarget::INTERFACE_LIBRARY)
999
1000
        {
        return linkedTargetsContent;
1001
1002
1003
1004
        }
      if (target->IsLinkInterfaceDependentBoolProperty(propertyName,
                                                       context->Config))
        {
1005
        context->HadContextSensitiveCondition = true;
1006
1007
1008
1009
        return target->GetLinkInterfaceDependentBoolProperty(
                                                propertyName,
                                                context->Config) ? "1" : "0";
        }
1010
1011
1012
      if (target->IsLinkInterfaceDependentStringProperty(propertyName,
                                                         context->Config))
        {
1013
        context->HadContextSensitiveCondition = true;
1014
1015
        const char *propContent =
                              target->GetLinkInterfaceDependentStringProperty(
1016
1017
                                                propertyName,
                                                context->Config);
1018
        return propContent ? propContent : "";
1019
        }
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
      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 : "";
        }
1040

1041
      return linkedTargetsContent;
1042
1043
      }

1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
    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 : "";
        }
      }
1068
    for (size_t i = 1;
1069
         i < cmArraySize(targetPropertyTransitiveWhitelist);
1070
1071
         ++i)
      {
1072
      if (targetPropertyTransitiveWhitelist[i] == interfacePropertyName)
1073
1074
        {
        cmGeneratorExpression ge(context->Backtrace);
1075
1076
        cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(prop);
        std::string result = cge->Evaluate(context->Makefile,
1077
1078
                            context->Config,
                            context->Quiet,
1079
                            headTarget,
1080
1081
                            target,
                            &dagChecker);
1082
1083
1084
1085
1086

        if (cge->GetHadContextSensitiveCondition())
          {
          context->HadContextSensitiveCondition = true;
          }
1087
1088
1089
1090
        if (!linkedTargetsContent.empty())
          {
          result += (result.empty() ? "" : ";") + linkedTargetsContent;
          }
1091
        return result;
1092
1093
1094
        }
      }
    return prop;
1095
1096
1097
  }
} targetPropertyNode;

1098
1099
1100
1101
1102
1103
1104
//----------------------------------------------------------------------------
static const struct TargetNameNode : public cmGeneratorExpressionNode
{
  TargetNameNode() {}

  virtual bool GeneratesContent() const { return true; }

1105
  virtual bool AcceptsArbitraryContentParameter() const { return true; }
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
  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;

1120
1121
//----------------------------------------------------------------------------
static const char* targetPolicyWhitelist[] = {
1122
1123
1124
1125
1126
1127
1128
  0
#define TARGET_POLICY_STRING(POLICY) \
  , #POLICY

  CM_FOR_EACH_TARGET_POLICY(TARGET_POLICY_STRING)

#undef TARGET_POLICY_STRING
1129
1130
};

1131
1132
cmPolicies::PolicyStatus statusForTarget(cmTarget const* tgt,
                                         const char *policy)
1133
1134
1135
1136
1137
1138
1139
{
#define RETURN_POLICY(POLICY) \
  if (strcmp(policy, #POLICY) == 0) \
  { \
    return tgt->GetPolicyStatus ## POLICY (); \
  } \

1140
  CM_FOR_EACH_TARGET_POLICY(RETURN_POLICY)
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155

#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; \
  } \

1156
  CM_FOR_EACH_TARGET_POLICY(RETURN_POLICY_ID)
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182

#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();
      }
1183
1184
1185

    context->HadContextSensitiveCondition = true;

1186
    for (size_t i = 1; i < cmArraySize(targetPolicyWhitelist); ++i)
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
      {
      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 "
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
      "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
1220
1221
1222
1223
1224
1225
      );
    return std::string();
  }

} targetPolicyNode;

Stephen Kelly's avatar
Stephen Kelly committed
1226
1227
1228
1229
1230
//----------------------------------------------------------------------------
static const struct InstallPrefixNode : public cmGeneratorExpressionNode
{
  InstallPrefixNode() {}

1231
  virtual bool GeneratesContent() const { return true; }
Stephen Kelly's avatar
Stephen Kelly committed
1232
1233
1234
  virtual int NumExpectedParameters() const { return 0; }

  std::string Evaluate(const std::vector<std::string> &,
1235
1236
                       cmGeneratorExpressionContext *context,
                       const GeneratorExpressionContent *content,
Stephen Kelly's avatar
Stephen Kelly committed
1237
1238
                       cmGeneratorExpressionDAGChecker *) const
  {
1239
1240
1241
    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
1242
1243
1244
1245
1246
    return std::string();
  }

} installPrefixNode;

1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
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
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
//----------------------------------------------------------------------------
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,
1361
                       const GeneratorExpressionContent *content,
1362
                       cmGeneratorExpressionDAGChecker *dagChecker) const
1363
1364
1365
1366
  {
    // Lookup the referenced target.
    std::string name = *parameters.begin();

1367
    if (!cmGeneratorExpression::IsValidTargetName(name))
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "Expression syntax not recognized.");
      return std::string();
      }
    cmTarget* target = context->Makefile->FindTargetToUse(name.c_str());
    if(!target)
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "No target \"" + name + "\"");
      return std::string();
      }
1380
    if(target->GetType() >= cmTarget::OBJECT_LIBRARY &&
1381
1382
1383
1384
1385
1386
      target->GetType() != cmTarget::UNKNOWN_LIBRARY)
      {
      ::reportError(context, content->GetOriginalExpression(),
                  "Target \"" + name + "\" is not an executable or library.");
      return std::string();
      }
1387
1388
1389
1390
1391
1392
1393
    if (dagChecker && dagChecker->EvaluatingLinkLibraries(name.c_str()))
      {
      ::reportError(context, content->GetOriginalExpression(),
                    "Expressions which require the linker language may not "
                    "be used while evaluating link libraries");
      return std::string();
      }
1394
1395
    context->DependTargets.insert(target);
    context->AllTargets.insert(target);
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

    std::string result =
                TargetFilesystemArtifactResultCreator<linker, soname>::Create(
                          target,
                          context,
                          content);
    if (context->HadError)
      {
      return std::string();
      }
    return
        TargetFilesystemArtifactResultGetter<dirQual, nameQual>::Get(result);
  }
};

//----------------------------------------------------------------------------
static const
TargetFilesystemArtifact<false, false, false, false> targetFileNode;
static const
TargetFilesystemArtifact<true, false, false, false> targetLinkerFileNode;
static const
TargetFilesystemArtifact<false, true, false, false> targetSoNameFileNode;
static const
TargetFilesystemArtifact<false, false, false, true> targetFileNameNode;
static const
TargetFilesystemArtifact<true, false, false, true> targetLinkerFileNameNode;
static const
TargetFilesystemArtifact<false, true, false, true> targetSoNameFileNameNode;
static const
TargetFilesystemArtifact<false, false, true, false> targetFileDirNode;
static const
TargetFilesystemArtifact<true, false, true, false> targetLinkerFileDirNode;
static const
TargetFilesystemArtifact<false, true, true, false> targetSoNameFileDirNode;

//----------------------------------------------------------------------------
static const
cmGeneratorExpressionNode* GetNode(const std::string &identifier)
{
  if (identifier == "0")
    return &zeroNode;
1437
  else if (identifier == "1")
1438
    return &oneNode;
1439
  else if (identifier == "AND")
1440
    return &andNode;
1441
  else if (identifier == "OR")
1442
    return &orNode;
1443
  else if (identifier == "NOT")
1444
    return &notNode;
1445
1446
1447
1448
  else if (identifier == "C_COMPILER_ID")
    return &cCompilerIdNode;
  else if (identifier == "CXX_COMPILER_ID")
    return &cxxCompilerIdNode;
1449
1450
1451
1452
1453
1454
  else if (identifier == "VERSION_GREATER")
    return &versionGreaterNode;
  else if (identifier == "VERSION_LESS")
    return &versionLessNode;
  else if (identifier == "VERSION_EQUAL")
    return &versionEqualNode;
1455
1456
1457
1458
  else if (identifier == "C_COMPILER_VERSION")
    return &cCompilerVersionNode;
  else if (identifier == "CXX_COMPILER_VERSION")
    return &cxxCompilerVersionNode;
1459
1460
  else if (identifier == "PLATFORM_ID")
    return &platformIdNode;
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
  else if (identifier == "CONFIGURATION")
    return &configurationNode;
  else if (identifier == "CONFIG")
    return &configurationTestNode;
  else if (identifier == "TARGET_FILE")
    return &targetFileNode;
  else if (identifier == "TARGET_LINKER_FILE")
    return &targetLinkerFileNode;
  else if (identifier == "TARGET_SONAME_FILE")
    return &targetSoNameFileNode;
  else if (identifier == "TARGET_FILE_NAME")
    return &targetFileNameNode;
  else if (identifier == "TARGET_LINKER_FILE_NAME")
    return &targetLinkerFileNameNode;
  else if (identifier == "TARGET_SONAME_FILE_NAME")
    return &targetSoNameFileNameNode;
  else if (identifier == "TARGET_FILE_DIR")
    return &targetFileDirNode;
  else if (identifier == "TARGET_LINKER_FILE_DIR")
    return &targetLinkerFileDirNode;
  else if (identifier == "TARGET_SONAME_FILE_DIR")
    return &targetSoNameFileDirNode;
1483
1484
  else if (identifier == "STREQUAL")
    return &strEqualNode;
1485
1486
1487
1488
1489
1490
  else if (identifier == "LOWER_CASE")
    return &lowerCaseNode;
  else if (identifier == "UPPER_CASE")
    return &upperCaseNode;
  else if (identifier == "MAKE_C_IDENTIFIER")
    return &makeCIdentifierNode;
1491
1492
1493
1494
1495
1496
  else if (identifier == "BOOL")
    return &boolNode;
  else if (identifier == "ANGLE-R")
    return &angle_rNode;
  else if (identifier == "COMMA")
    return &commaNode;
1497
1498
  else if (identifier == "SEMICOLON")
    return &semicolonNode;
1499
1500
  else if (identifier == "TARGET_PROPERTY")
    return &targetPropertyNode;
1501
1502
  else if (identifier == "TARGET_NAME")
    return &targetNameNode;
1503
1504
  else if (identifier == "TARGET_POLICY")
    return &targetPolicyNode;
1505
1506
1507
1508
  else if (identifier == "BUILD_INTERFACE")
    return &buildInterfaceNode;
  else if (identifier == "INSTALL_INTERFACE")
    return &installInterfaceNode;
Stephen Kelly's avatar
Stephen Kelly committed
1509
1510
  else if (identifier == "INSTALL_PREFIX")
    return &installPrefixNode;
1511
1512
  else if (identifier == "JOIN")
    return &joinNode;
1513
1514
  else if (identifier == "LINK_ONLY")
    return &linkOnlyNode;
1515
  return 0;
1516

1517
1518
1519
1520
1521
}

//----------------------------------------------------------------------------
GeneratorExpressionContent::GeneratorExpressionContent(
                                                    const char *startContent,
1522
                                                    size_t length)
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
  : StartContent(startContent), ContentLength(length)
{

}

//----------------------------------------------------------------------------
std::string GeneratorExpressionContent::GetOriginalExpression() const
{
  return std::string(this->StartContent, this->ContentLength);
}

1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
//----------------------------------------------------------------------------
std::string GeneratorExpressionContent::ProcessArbitraryContent(
    const cmGeneratorExpressionNode *node,
    const std::string &identifier,
    cmGeneratorExpressionContext *context,
    cmGeneratorExpressionDAGChecker *dagChecker,
    std::vector<std::vector<cmGeneratorExpressionEvaluator*> >::const_iterator
    pit) const
{
  std::string result;

  const
  std::vector<std::vector<cmGeneratorExpressionEvaluator*> >::const_iterator
                                      pend = this->ParamChildren.end();
  for ( ; pit != pend; ++pit)
    {
    std::vector<cmGeneratorExpressionEvaluator*>::const_iterator it
                                                            = pit->begin();
    const std::vector<cmGeneratorExpressionEvaluator*>::const_iterator end
                                                              = pit->end();
    for ( ; it != end; ++it)
      {
      if (node->RequiresLiteralInput())
        {
        if ((*it)->GetType() != cmGeneratorExpressionEvaluator::Text)
          {
          reportError(context, this->GetOriginalExpression(),
                "$<" + identifier + "> expression requires literal input.");
          return std::string();
          }
        }
      result += (*it)->Evaluate(context, dagChecker);
      if (context->HadError)
        {
        return std::string();
        }
      }
      if ((pit + 1) != pend)
        {
        result += ",";
        }
    }
  if (node->RequiresLiteralInput())
    {
    std::vector<std::string> parameters;
    parameters.push_back(result);
    return node->Evaluate(parameters, context, this, dagChecker);
    }
  return result;
}

1585
1586
//----------------------------------------------------------------------------
std::string GeneratorExpressionContent::Evaluate(
1587
1588
                            cmGeneratorExpressionContext *context,
                            cmGeneratorExpressionDAGChecker *dagChecker) const
1589
1590
1591
1592
1593
1594
1595
1596
1597
{
  std::string identifier;
  {
  std::vector<cmGeneratorExpressionEvaluator*>::const_iterator it
                                          = this->IdentifierChildren.begin();
  const std::vector<cmGeneratorExpressionEvaluator*>::const_iterator end
                                          = this->IdentifierChildren.end();
  for ( ; it != end; ++it)
    {