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

source code of libc/test/UnitTest/ScanfMatcher.cpp