1 //===-- ScanfMatcher.cpp ----------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "ScanfMatcher.h" 10 11 #include "src/__support/FPUtil/FPBits.h" 12 #include "src/__support/macros/config.h" 13 #include "src/stdio/scanf_core/core_structs.h" 14 15 #include "test/UnitTest/StringUtils.h" 16 #include "test/UnitTest/Test.h" 17 18 #include <stdint.h> 19 20 namespace LIBC_NAMESPACE_DECL { 21 namespace testing { 22 23 using scanf_core::FormatFlags; 24 using scanf_core::FormatSection; 25 using scanf_core::LengthModifier; 26 match(FormatSection actualValue)27bool FormatSectionMatcher::match(FormatSection actualValue) { 28 actual = actualValue; 29 return expected == actual; 30 } 31 32 namespace { 33 34 #define IF_FLAG_SHOW_FLAG(flag_name) \ 35 do { \ 36 if ((form.flags & FormatFlags::flag_name) == FormatFlags::flag_name) \ 37 tlog << "\n\t\t" << #flag_name; \ 38 } while (false) 39 #define CASE_LM(lm) \ 40 case (LengthModifier::lm): \ 41 tlog << #lm; \ 42 break 43 display(FormatSection form)44void display(FormatSection form) { 45 tlog << "Raw String (len " << form.raw_string.size() << "): \""; 46 for (size_t i = 0; i < form.raw_string.size(); ++i) { 47 tlog << form.raw_string[i]; 48 } 49 tlog << "\""; 50 if (form.has_conv) { 51 tlog << "\n\tHas Conv\n\tFlags:"; 52 IF_FLAG_SHOW_FLAG(NO_WRITE); 53 IF_FLAG_SHOW_FLAG(ALLOCATE); 54 tlog << "\n"; 55 tlog << "\tmax width: " << form.max_width << "\n"; 56 tlog << "\tlength modifier: "; 57 switch (form.length_modifier) { 58 CASE_LM(NONE); 59 CASE_LM(l); 60 CASE_LM(ll); 61 CASE_LM(h); 62 CASE_LM(hh); 63 CASE_LM(j); 64 CASE_LM(z); 65 CASE_LM(t); 66 CASE_LM(L); 67 } 68 tlog << "\n"; 69 // If the pointer is used (NO_WRITE is not set and the conversion isn't %). 70 if (((form.flags & FormatFlags::NO_WRITE) == 0) && 71 (form.conv_name != '%')) { 72 tlog << "\tpointer value: " 73 << int_to_hex<uintptr_t>( 74 reinterpret_cast<uintptr_t>(form.output_ptr)) 75 << "\n"; 76 } 77 78 tlog << "\tconversion name: " << form.conv_name << "\n"; 79 80 if (form.conv_name == '[') { 81 tlog << "\t\t"; 82 for (size_t i = 0; i < 256 /* char max */; ++i) { 83 if (form.scan_set.test(i)) { 84 tlog << static_cast<char>(i); 85 } 86 } 87 tlog << "\n\t]\n"; 88 } 89 } 90 } 91 } // anonymous namespace 92 explainError()93void FormatSectionMatcher::explainError() { 94 tlog << "expected format section: "; 95 display(expected); 96 tlog << '\n'; 97 tlog << "actual format section : "; 98 display(actual); 99 tlog << '\n'; 100 } 101 102 } // namespace testing 103 } // namespace LIBC_NAMESPACE_DECL 104