Repository navigation
Expand file tree
/
Copy pathtest_cpp_preprocessor.py
More file actions
1064 lines (862 loc) · 30.3 KB
/
Copy pathtest_cpp_preprocessor.py
File metadata and controls
1064 lines (862 loc) · 30.3 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
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
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
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
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
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
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
661
662
663
664
665
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
694
695
696
697
698
699
700
701
702
703
704
705
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
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
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
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
from pathlib import Path
from unittest.mock import MagicMock
import pytest
from codebase_rag.tests.conftest import get_node_names, get_relationships, run_updater
@pytest.fixture
def cpp_preprocessor_project(temp_repo: Path) -> Path:
"""Create a comprehensive C++ project with preprocessor directives."""
project_path = temp_repo / "cpp_preprocessor_test"
project_path.mkdir()
(project_path / "src").mkdir()
(project_path / "include").mkdir()
return project_path
def test_define_macros(
cpp_preprocessor_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test #define macros including object-like and function-like macros."""
test_file = cpp_preprocessor_project / "define_macros.cpp"
test_file.write_text(
"""
#include <iostream>
#include <string>
// Object-like macros
#define PI 3.14159265359
#define MAX_SIZE 1000
#define DEBUG_MODE 1
#define VERSION_MAJOR 2
#define VERSION_MINOR 1
#define VERSION_PATCH 0
// String macros
#define COMPANY_NAME "TechCorp"
#define COPYRIGHT_YEAR "2024"
#define DEFAULT_CONFIG_FILE "config.ini"
// Function-like macros
#define SQUARE(x) ((x) * (x))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define ABS(x) ((x) < 0 ? -(x) : (x))
// Multi-line macros using backslash
#define SWAP(x, y) do { \\
auto temp = x; \\
x = y; \\
y = temp; \\
} while(0)
// Macro with multiple statements
#define DEBUG_PRINT(msg) do { \\
if (DEBUG_MODE) { \\
std::cout << "[DEBUG] " << msg << std::endl; \\
} \\
} while(0)
// Stringification macro
#define STRINGIFY(x) #x
#define TOSTRING(x) STRINGIFY(x)
// Token concatenation macro
#define CONCAT(a, b) a##b
// Variadic macros (C99/C++)
#define LOG(format, ...) printf(format, ##__VA_ARGS__)
#define PRINT_ARGS(...) printf(__VA_ARGS__)
// Complex function-like macro
#define DECLARE_GETTER_SETTER(type, name) \\
private: \\
type name##_; \\
public: \\
type get##name() const { return name##_; } \\
void set##name(const type& value) { name##_ = value; }
// Conditional compilation within macros
#if DEBUG_MODE
#define DBG_MSG(msg) std::cout << "DEBUG: " << msg << std::endl
#else
#define DBG_MSG(msg) // No debug output in release mode
#endif
// Macro using other macros
#define CIRCLE_AREA(radius) (PI * SQUARE(radius))
#define VERSION_STRING TOSTRING(VERSION_MAJOR) "." TOSTRING(VERSION_MINOR) "." TOSTRING(VERSION_PATCH)
class MacroExample {
// Using macro to declare member variables and accessors
DECLARE_GETTER_SETTER(std::string, Name)
DECLARE_GETTER_SETTER(int, Age)
DECLARE_GETTER_SETTER(double, Salary)
public:
MacroExample(const std::string& name, int age, double salary) {
setName(name);
setAge(age);
setSalary(salary);
}
void printInfo() const {
std::cout << "Name: " << getName() << std::endl;
std::cout << "Age: " << getAge() << std::endl;
std::cout << "Salary: $" << getSalary() << std::endl;
}
};
void testObjectLikeMacros() {
std::cout << "=== Testing Object-like Macros ===" << std::endl;
// Using simple macros
double radius = 5.0;
double area = PI * radius * radius;
std::cout << "Circle area (r=" << radius << "): " << area << std::endl;
// Using macro in array declaration
int buffer[MAX_SIZE];
std::cout << "Buffer size: " << MAX_SIZE << std::endl;
// String macros
std::cout << "Company: " << COMPANY_NAME << std::endl;
std::cout << "Copyright: " << COPYRIGHT_YEAR << std::endl;
std::cout << "Config file: " << DEFAULT_CONFIG_FILE << std::endl;
// Version information
std::cout << "Version: " << VERSION_STRING << std::endl;
// Debug mode check
if (DEBUG_MODE) {
std::cout << "Debug mode is enabled" << std::endl;
}
}
void testFunctionLikeMacros() {
std::cout << "=== Testing Function-like Macros ===" << std::endl;
int a = 10, b = 20;
// Basic function-like macros
std::cout << "SQUARE(7) = " << SQUARE(7) << std::endl;
std::cout << "MAX(a, b) = " << MAX(a, b) << std::endl;
std::cout << "MIN(a, b) = " << MIN(a, b) << std::endl;
std::cout << "ABS(-15) = " << ABS(-15) << std::endl;
// Multi-statement macro
std::cout << "Before swap: a=" << a << ", b=" << b << std::endl;
SWAP(a, b);
std::cout << "After swap: a=" << a << ", b=" << b << std::endl;
// Debug printing
DEBUG_PRINT("This is a debug message");
DEBUG_PRINT("Values: a=" + std::to_string(a) + ", b=" + std::to_string(b));
// Using macros with other macros
double radius = 3.0;
std::cout << "Circle area using macro: " << CIRCLE_AREA(radius) << std::endl;
// Stringification
std::cout << "Stringified PI: " << STRINGIFY(PI) << std::endl;
std::cout << "Version as string: " << TOSTRING(VERSION_MAJOR) << std::endl;
// Token concatenation
int CONCAT(var, 123) = 456;
std::cout << "Concatenated variable var123 = " << var123 << std::endl;
}
void testVariadicMacros() {
std::cout << "=== Testing Variadic Macros ===" << std::endl;
// Variadic macro usage
LOG("Simple message\\n");
LOG("Formatted message: %d + %d = %d\\n", 5, 3, 5 + 3);
LOG("String: %s, Float: %.2f\\n", "Hello", 3.14159);
PRINT_ARGS("Multiple arguments: %d, %s, %.1f\\n", 42, "world", 2.71);
}
void testMacroGeneration() {
std::cout << "=== Testing Macro-Generated Code ===" << std::endl;
// Using class with macro-generated getters/setters
MacroExample person("Alice Johnson", 30, 75000.50);
person.printInfo();
// Modifying using generated setters
person.setAge(31);
person.setSalary(78000.00);
std::cout << "After update:" << std::endl;
person.printInfo();
// Direct getter usage
std::cout << "Direct access - Name: " << person.getName()
<< ", Age: " << person.getAge() << std::endl;
}
void testMacroEdgeCases() {
std::cout << "=== Testing Macro Edge Cases ===" << std::endl;
// Macro with side effects (demonstrates why parentheses are important)
int x = 5;
std::cout << "x = " << x << std::endl;
std::cout << "SQUARE(x++) = " << SQUARE(x++) << std::endl; // Dangerous! x is incremented twice
std::cout << "x after SQUARE(x++) = " << x << std::endl;
// Macro precedence issues
int result1 = SQUARE(2 + 3); // Should be (2+3)*(2+3) = 25, not 2+3*2+3 = 11
std::cout << "SQUARE(2 + 3) = " << result1 << std::endl;
// Multiple evaluation in MAX macro
x = 10;
int y = 5;
std::cout << "Before MAX(++x, ++y): x=" << x << ", y=" << y << std::endl;
int max_val = MAX(++x, ++y); // Both x and y may be incremented multiple times
std::cout << "MAX(++x, ++y) = " << max_val << std::endl;
std::cout << "After MAX: x=" << x << ", y=" << y << std::endl;
}
void demonstrateDefineMacros() {
testObjectLikeMacros();
testFunctionLikeMacros();
testVariadicMacros();
testMacroGeneration();
testMacroEdgeCases();
}
"""
)
run_updater(cpp_preprocessor_project, mock_ingestor)
project_name = cpp_preprocessor_project.name
expected_functions = [
f"{project_name}.define_macros.testObjectLikeMacros",
f"{project_name}.define_macros.testFunctionLikeMacros",
f"{project_name}.define_macros.testVariadicMacros",
f"{project_name}.define_macros.demonstrateDefineMacros",
]
created_functions = get_node_names(mock_ingestor, "Function")
missing_functions = set(expected_functions) - created_functions
assert not missing_functions, (
f"Missing expected functions: {sorted(list(missing_functions))}"
)
def test_conditional_compilation(
cpp_preprocessor_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test conditional compilation directives."""
test_file = cpp_preprocessor_project / "conditional_compilation.cpp"
test_file.write_text(
"""
#include <iostream>
#include <string>
// Define compilation flags
#define FEATURE_LOGGING 1
#define FEATURE_DEBUGGING 1
#define OPTIMIZATION_LEVEL 2
#define TARGET_PLATFORM_WINDOWS 1
// #define TARGET_PLATFORM_LINUX 1
// #define TARGET_PLATFORM_MAC 1
// Compiler detection
#ifdef _MSC_VER
#define COMPILER_MSVC 1
#elif defined(__GNUC__)
#define COMPILER_GCC 1
#elif defined(__clang__)
#define COMPILER_CLANG 1
#endif
// Version checking
#define REQUIRED_CPP_VERSION 201703L // C++17
#if __cplusplus >= REQUIRED_CPP_VERSION
#define MODERN_CPP_AVAILABLE 1
#else
#define MODERN_CPP_AVAILABLE 0
#endif
// Platform-specific code
#ifdef TARGET_PLATFORM_WINDOWS
#include <windows.h>
#define PLATFORM_NAME "Windows"
#define PATH_SEPARATOR "\\\\"
#elif defined(TARGET_PLATFORM_LINUX)
#include <unistd.h>
#define PLATFORM_NAME "Linux"
#define PATH_SEPARATOR "/"
#elif defined(TARGET_PLATFORM_MAC)
#include <unistd.h>
#define PLATFORM_NAME "macOS"
#define PATH_SEPARATOR "/"
#else
#define PLATFORM_NAME "Unknown"
#define PATH_SEPARATOR "/"
#endif
// Feature toggles
#ifdef FEATURE_LOGGING
#define LOG(msg) std::cout << "[LOG] " << msg << std::endl
#else
#define LOG(msg) // Logging disabled
#endif
#ifdef FEATURE_DEBUGGING
#define DEBUG(msg) std::cout << "[DEBUG] " << msg << std::endl
#define ASSERT(condition) \\
if (!(condition)) { \\
std::cerr << "Assertion failed: " << #condition \\
<< " at " << __FILE__ << ":" << __LINE__ << std::endl; \\
}
#else
#define DEBUG(msg) // Debugging disabled
#define ASSERT(condition) // Assertions disabled
#endif
// Optimization level based code
#if OPTIMIZATION_LEVEL >= 2
#define INLINE_HINT inline
#define FORCE_INLINE __forceinline
#else
#define INLINE_HINT
#define FORCE_INLINE
#endif
// Compiler-specific features
#ifdef COMPILER_MSVC
#define PRAGMA_WARNING_PUSH __pragma(warning(push))
#define PRAGMA_WARNING_DISABLE(x) __pragma(warning(disable: x))
#define PRAGMA_WARNING_POP __pragma(warning(pop))
#elif defined(COMPILER_GCC) || defined(COMPILER_CLANG)
#define PRAGMA_WARNING_PUSH _Pragma("GCC diagnostic push")
#define PRAGMA_WARNING_DISABLE(x) _Pragma("GCC diagnostic ignored " #x)
#define PRAGMA_WARNING_POP _Pragma("GCC diagnostic pop")
#else
#define PRAGMA_WARNING_PUSH
#define PRAGMA_WARNING_DISABLE(x)
#define PRAGMA_WARNING_POP
#endif
class ConditionalFeatures {
private:
std::string name_;
public:
ConditionalFeatures(const std::string& name) : name_(name) {
LOG("ConditionalFeatures constructor called for: " + name);
DEBUG("Debug info: Creating object with name length: " + std::to_string(name.length()));
}
// Platform-specific method
void showPlatformInfo() const {
std::cout << "Running on: " << PLATFORM_NAME << std::endl;
std::cout << "Path separator: " << PATH_SEPARATOR << std::endl;
#ifdef TARGET_PLATFORM_WINDOWS
std::cout << "Windows-specific code active" << std::endl;
// Windows-specific implementation
#elif defined(TARGET_PLATFORM_LINUX)
std::cout << "Linux-specific code active" << std::endl;
// Linux-specific implementation
#elif defined(TARGET_PLATFORM_MAC)
std::cout << "macOS-specific code active" << std::endl;
// macOS-specific implementation
#endif
}
// Conditionally compiled method
#if MODERN_CPP_AVAILABLE
auto getModernFeature() const -> std::string {
return "Modern C++ features available";
}
#else
std::string getModernFeature() const {
return "Using legacy C++ syntax";
}
#endif
// Optimization level dependent method
INLINE_HINT void fastOperation() const {
LOG("Performing fast operation");
#if OPTIMIZATION_LEVEL >= 3
// Highly optimized version
std::cout << "Using highly optimized implementation" << std::endl;
#elif OPTIMIZATION_LEVEL >= 2
// Medium optimization
std::cout << "Using medium optimization implementation" << std::endl;
#else
// Debug version
std::cout << "Using debug implementation" << std::endl;
#endif
}
void validateInput(int value) const {
ASSERT(value >= 0);
ASSERT(value <= 100);
if (value >= 0 && value <= 100) {
LOG("Input validation passed for value: " + std::to_string(value));
} else {
DEBUG("Input validation failed for value: " + std::to_string(value));
}
}
};
// Conditional function definitions
#ifdef FEATURE_DEBUGGING
void debugOnlyFunction() {
std::cout << "This function only exists in debug builds" << std::endl;
DEBUG("debugOnlyFunction called");
}
#endif
#if OPTIMIZATION_LEVEL >= 2
FORCE_INLINE int optimizedCalculation(int a, int b) {
return a * a + b * b;
}
#else
int optimizedCalculation(int a, int b) {
DEBUG("Using unoptimized calculation");
return a * a + b * b;
}
#endif
void testConditionalCompilation() {
std::cout << "=== Testing Conditional Compilation ===" << std::endl;
ConditionalFeatures features("TestObject");
features.showPlatformInfo();
std::cout << "Modern feature status: " << features.getModernFeature() << std::endl;
features.fastOperation();
// Test assertions
features.validateInput(50); // Should pass
features.validateInput(150); // Should trigger assertion
// Conditional function calls
#ifdef FEATURE_DEBUGGING
debugOnlyFunction();
#endif
int result = optimizedCalculation(3, 4);
std::cout << "Calculation result: " << result << std::endl;
// Compiler information
#ifdef COMPILER_MSVC
std::cout << "Compiled with Microsoft Visual C++" << std::endl;
#elif defined(COMPILER_GCC)
std::cout << "Compiled with GCC" << std::endl;
#elif defined(COMPILER_CLANG)
std::cout << "Compiled with Clang" << std::endl;
#else
std::cout << "Compiled with unknown compiler" << std::endl;
#endif
// C++ version info
std::cout << "C++ standard: " << __cplusplus << std::endl;
#if MODERN_CPP_AVAILABLE
std::cout << "Modern C++ features are available" << std::endl;
#else
std::cout << "Using legacy C++ features" << std::endl;
#endif
}
// Complex conditional compilation example
#if defined(FEATURE_LOGGING) && defined(FEATURE_DEBUGGING)
#define ENHANCED_LOGGING 1
#endif
#ifdef ENHANCED_LOGGING
void enhancedLog(const std::string& message) {
LOG("ENHANCED: " + message);
DEBUG("Enhanced logging active");
}
#else
void enhancedLog(const std::string& message) {
std::cout << message << std::endl;
}
#endif
void testComplexConditionals() {
std::cout << "=== Testing Complex Conditionals ===" << std::endl;
enhancedLog("This message uses conditional logging");
// Nested conditionals
#if OPTIMIZATION_LEVEL >= 2
#ifdef FEATURE_DEBUGGING
std::cout << "High optimization with debugging enabled" << std::endl;
#else
std::cout << "High optimization, no debugging" << std::endl;
#endif
#else
std::cout << "Low optimization level" << std::endl;
#endif
// Multiple condition check
#if defined(TARGET_PLATFORM_WINDOWS) && (OPTIMIZATION_LEVEL >= 2)
std::cout << "Windows platform with high optimization" << std::endl;
#elif defined(TARGET_PLATFORM_LINUX) || defined(TARGET_PLATFORM_MAC)
std::cout << "Unix-like platform" << std::endl;
#else
std::cout << "Other platform configuration" << std::endl;
#endif
}
void demonstrateConditionalCompilation() {
testConditionalCompilation();
testComplexConditionals();
}
"""
)
run_updater(cpp_preprocessor_project, mock_ingestor)
project_name = cpp_preprocessor_project.name
expected_classes = [
f"{project_name}.conditional_compilation.ConditionalFeatures",
]
expected_functions = [
f"{project_name}.conditional_compilation.testConditionalCompilation",
f"{project_name}.conditional_compilation.testComplexConditionals",
f"{project_name}.conditional_compilation.demonstrateConditionalCompilation",
]
created_classes = get_node_names(mock_ingestor, "Class")
found_classes = [cls for cls in expected_classes if cls in created_classes]
assert len(found_classes) >= 1, (
f"Expected at least 1 conditional compilation class, found {len(found_classes)}: {found_classes}"
)
created_functions = get_node_names(mock_ingestor, "Function")
missing_functions = set(expected_functions) - created_functions
assert not missing_functions, (
f"Missing expected functions: {sorted(list(missing_functions))}"
)
def test_pragma_directives(
cpp_preprocessor_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Test #pragma directives and include guards."""
test_file = cpp_preprocessor_project / "pragma_directives.cpp"
test_file.write_text(
"""
// Include guard using traditional method
#ifndef PRAGMA_DIRECTIVES_H
#define PRAGMA_DIRECTIVES_H
#include <iostream>
#include <string>
#include <vector>
// Pragma once (modern include guard)
#pragma once
// Compiler-specific pragmas
#pragma warning(push)
#pragma warning(disable: 4996) // Disable deprecated function warnings
// Optimization pragmas
#pragma optimize("gt", on) // Enable global optimization and fast code
// Packing pragmas for struct alignment
#pragma pack(push, 1) // Pack structures to 1-byte boundaries
struct PackedStruct {
char a; // 1 byte
int b; // 4 bytes (normally would be padded)
short c; // 2 bytes
}; // Total: 7 bytes instead of 12
#pragma pack(pop) // Restore original packing
// Loop optimization pragmas
#pragma loop(hint_parallel(4))
#pragma loop(ivdep) // Ignore vector dependencies
// Function inlining pragmas
#pragma inline_depth(10)
#pragma inline_recursion(on)
// Custom pragma for code analysis
#pragma code_seg(".MYCODE")
#pragma data_seg(".MYDATA")
class PragmaExample {
private:
std::vector<int> data_;
public:
PragmaExample(size_t size) : data_(size) {
// Initialize data with pragma-optimized loop
#pragma loop(hint_parallel(0))
for (size_t i = 0; i < size; ++i) {
data_[i] = static_cast<int>(i * i);
}
}
// Function with pragma-controlled inlining
#pragma inline
int getValue(size_t index) const {
return (index < data_.size()) ? data_[index] : -1;
}
// Function with pragma-disabled warnings
#pragma warning(push)
#pragma warning(disable: 4101) // Unreferenced local variable
void demonstrateWarningControl() {
int unused_variable; // This would normally generate a warning
std::cout << "Warning control demonstration" << std::endl;
}
#pragma warning(pop)
// Vectorization hints
void processDataParallel() {
#pragma ivdep
#pragma vector always
for (size_t i = 0; i < data_.size(); ++i) {
data_[i] = data_[i] * 2 + 1;
}
}
// OpenMP pragma (if supported)
#ifdef _OPENMP
#pragma omp parallel for
#endif
void processDataOpenMP() {
for (int i = 0; i < static_cast<int>(data_.size()); ++i) {
data_[i] = data_[i] * 3;
}
}
size_t size() const { return data_.size(); }
void printData() const {
std::cout << "Data: ";
for (size_t i = 0; i < std::min(data_.size(), size_t(10)); ++i) {
std::cout << data_[i] << " ";
}
if (data_.size() > 10) {
std::cout << "... (" << data_.size() << " total)";
}
std::cout << std::endl;
}
};
// Function with optimization pragmas
#pragma optimize("", off) // Disable optimization for debugging
void debugFunction() {
std::cout << "This function has optimizations disabled" << std::endl;
// Intentionally inefficient code for debugging
volatile int sum = 0;
for (volatile int i = 0; i < 1000; ++i) {
sum += i;
}
std::cout << "Debug sum: " << sum << std::endl;
}
#pragma optimize("", on) // Re-enable optimization
// Deprecated function with pragma
#pragma deprecated(oldFunction)
void oldFunction() {
std::cout << "This function is deprecated" << std::endl;
}
// Function with custom pragma messages
void testPragmaMessages() {
#pragma message("Compiling pragma message test function")
std::cout << "=== Testing Pragma Messages ===" << std::endl;
#ifdef DEBUG
#pragma message("Debug mode is enabled")
#else
#pragma message("Release mode compilation")
#endif
// Conditional pragma based on compiler
#ifdef _MSC_VER
#pragma message("Compiling with Microsoft Visual C++")
#elif defined(__GNUC__)
#pragma message("Compiling with GCC")
#endif
}
// Memory alignment pragmas
#pragma align(16)
struct AlignedStruct {
double values[4]; // Will be 16-byte aligned
};
void testStructPacking() {
std::cout << "=== Testing Struct Packing ===" << std::endl;
// Test packed struct
PackedStruct packed;
std::cout << "PackedStruct size: " << sizeof(PackedStruct) << " bytes" << std::endl;
// Test aligned struct
AlignedStruct aligned;
std::cout << "AlignedStruct size: " << sizeof(AlignedStruct) << " bytes" << std::endl;
std::cout << "AlignedStruct alignment: " << alignof(AlignedStruct) << " bytes" << std::endl;
}
void testOptimizationPragmas() {
std::cout << "=== Testing Optimization Pragmas ===" << std::endl;
PragmaExample example(1000);
// Test regular processing
auto start = std::chrono::high_resolution_clock::now();
example.processDataParallel();
auto end = std::chrono::high_resolution_clock::now();
std::cout << "Parallel processing completed" << std::endl;
example.printData();
// Test OpenMP processing (if available)
#ifdef _OPENMP
example.processDataOpenMP();
std::cout << "OpenMP processing completed" << std::endl;
#else
std::cout << "OpenMP not available" << std::endl;
#endif
// Test debug function (unoptimized)
debugFunction();
// Test deprecated function (may generate warnings)
oldFunction();
}
// Template with pragma specialization
template<typename T>
class PragmaTemplate {
private:
T value_;
public:
PragmaTemplate(T value) : value_(value) {}
#pragma inline
T getValue() const { return value_; }
void setValue(T value) { value_ = value; }
};
// Specialized version with different pragma settings
#pragma pack(push, 4)
template<>
class PragmaTemplate<double> {
private:
double value_;
int padding_; // Explicit padding control
public:
PragmaTemplate(double value) : value_(value), padding_(0) {}
double getValue() const { return value_; }
void setValue(double value) { value_ = value; }
};
#pragma pack(pop)
void testTemplatePragmas() {
std::cout << "=== Testing Template Pragmas ===" << std::endl;
PragmaTemplate<int> intTemplate(42);
PragmaTemplate<double> doubleTemplate(3.14159);
std::cout << "Int template value: " << intTemplate.getValue() << std::endl;
std::cout << "Double template value: " << doubleTemplate.getValue() << std::endl;
std::cout << "Double template size: " << sizeof(doubleTemplate) << " bytes" << std::endl;
}
void demonstratePragmaDirectives() {
testPragmaMessages();
testStructPacking();
testOptimizationPragmas();
testTemplatePragmas();
}
// Restore original pragma settings
#pragma warning(pop)
#pragma optimize("", on)
#endif // PRAGMA_DIRECTIVES_H
"""
)
run_updater(cpp_preprocessor_project, mock_ingestor)
project_name = cpp_preprocessor_project.name
expected_classes = [
f"{project_name}.pragma_directives.PragmaExample",
]
expected_functions = [
f"{project_name}.pragma_directives.testPragmaMessages",
f"{project_name}.pragma_directives.testStructPacking",
f"{project_name}.pragma_directives.demonstratePragmaDirectives",
]
created_classes = get_node_names(mock_ingestor, "Class")
found_classes = [cls for cls in expected_classes if cls in created_classes]
assert len(found_classes) >= 1, (
f"Expected at least 1 pragma directive class, found {len(found_classes)}: {found_classes}"
)
created_functions = get_node_names(mock_ingestor, "Function")
missing_functions = set(expected_functions) - created_functions
assert not missing_functions, (
f"Missing expected functions: {sorted(list(missing_functions))}"
)
def test_cpp_preprocessor_comprehensive(
cpp_preprocessor_project: Path,
mock_ingestor: MagicMock,
) -> None:
"""Comprehensive test ensuring all preprocessor features create proper relationships."""
test_file = cpp_preprocessor_project / "comprehensive_preprocessor.cpp"
test_file.write_text(
"""
// Comprehensive preprocessor example combining all features
#ifndef COMPREHENSIVE_PREPROCESSOR_H
#define COMPREHENSIVE_PREPROCESSOR_H
#pragma once
#include <iostream>
#include <string>
// Configuration macros
#define ENABLE_FEATURE_A 1
#define ENABLE_FEATURE_B 0
#define DEBUG_LEVEL 2
#define VERSION_MAJOR 3
#define VERSION_MINOR 1
// Function-like macros
#define LOG_DEBUG(msg) do { \\
if (DEBUG_LEVEL >= 2) { \\
std::cout << "[DEBUG] " << msg << std::endl; \\
} \\
} while(0)
#define STRINGIFY(x) #x
#define COMBINE(a, b) a##b
// Conditional compilation with complex logic
#if (ENABLE_FEATURE_A && DEBUG_LEVEL >= 1) || defined(FORCE_DEBUG)
#define ADVANCED_DEBUGGING 1
#else
#define ADVANCED_DEBUGGING 0
#endif
// Platform detection and adaptation
#ifdef _WIN32
#define PLATFORM_SPECIFIC_CODE windows_implementation
#elif defined(__linux__)
#define PLATFORM_SPECIFIC_CODE linux_implementation
#else
#define PLATFORM_SPECIFIC_CODE generic_implementation
#endif
#pragma pack(push, 1)
struct ComprehensiveConfig {
char feature_flags;
int version;
short debug_level;
};
#pragma pack(pop)
class ComprehensivePreprocessor {
private:
std::string name_;
ComprehensiveConfig config_;
public:
ComprehensivePreprocessor(const std::string& name) : name_(name) {
config_.feature_flags = (ENABLE_FEATURE_A ? 1 : 0) | (ENABLE_FEATURE_B ? 2 : 0);
config_.version = (VERSION_MAJOR << 16) | VERSION_MINOR;
config_.debug_level = DEBUG_LEVEL;
LOG_DEBUG("ComprehensivePreprocessor created: " + name);
}
void demonstrateFeatures() {
std::cout << "=== Comprehensive Preprocessor Demo ===" << std::endl;
std::cout << "Object: " << name_ << std::endl;
// Conditional feature demonstration
#if ENABLE_FEATURE_A
std::cout << "Feature A is enabled" << std::endl;
featureAImplementation();
#else
std::cout << "Feature A is disabled" << std::endl;
#endif
#if ENABLE_FEATURE_B
std::cout << "Feature B is enabled" << std::endl;
featureBImplementation();
#else
std::cout << "Feature B is disabled" << std::endl;
#endif
// Platform-specific code
PLATFORM_SPECIFIC_CODE();
// Debug level dependent behavior
#if DEBUG_LEVEL >= 2
std::cout << "High debug level - showing detailed info" << std::endl;
showDetailedInfo();
#elif DEBUG_LEVEL >= 1
std::cout << "Medium debug level - showing basic info" << std::endl;
showBasicInfo();
#else
std::cout << "No debug output" << std::endl;
#endif
// Advanced debugging if enabled
#if ADVANCED_DEBUGGING
std::cout << "Advanced debugging features active" << std::endl;
performAdvancedDebugging();
#endif
}
private:
#if ENABLE_FEATURE_A
void featureAImplementation() {
LOG_DEBUG("Executing Feature A");
std::cout << " Feature A processing..." << std::endl;
}
#endif
#if ENABLE_FEATURE_B
void featureBImplementation() {
LOG_DEBUG("Executing Feature B");
std::cout << " Feature B processing..." << std::endl;
}
#endif
void windows_implementation() {
std::cout << " Using Windows-specific implementation" << std::endl;
}
void linux_implementation() {
std::cout << " Using Linux-specific implementation" << std::endl;
}
void generic_implementation() {
std::cout << " Using generic implementation" << std::endl;
}
#if DEBUG_LEVEL >= 1
void showBasicInfo() {
std::cout << " Config size: " << sizeof(config_) << " bytes" << std::endl;
std::cout << " Version: " << STRINGIFY(VERSION_MAJOR) "." STRINGIFY(VERSION_MINOR) << std::endl;
}
#endif
#if DEBUG_LEVEL >= 2
void showDetailedInfo() {
showBasicInfo();
std::cout << " Feature flags: " << static_cast<int>(config_.feature_flags) << std::endl;
std::cout << " Debug level: " << config_.debug_level << std::endl;
}
#endif
#if ADVANCED_DEBUGGING
void performAdvancedDebugging() {
std::cout << " Advanced debugging: Memory layout analysis" << std::endl;
std::cout << " Object address: " << this << std::endl;