103 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9#include "ScanfMatcher.h"10 11#include "hdr/stdint_proxy.h"12#include "src/__support/FPUtil/FPBits.h"13#include "src/__support/macros/config.h"14#include "src/stdio/scanf_core/core_structs.h"15 16#include "test/UnitTest/StringUtils.h"17#include "test/UnitTest/Test.h"18 19namespace LIBC_NAMESPACE_DECL {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 break42 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 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(i)) {83 tlog << static_cast<char>(i);84 }85 }86 tlog << "\n\t]\n";87 }88 }89}90} // anonymous namespace91 92void FormatSectionMatcher::explainError() {93 tlog << "expected format section: ";94 display(expected);95 tlog << '\n';96 tlog << "actual format section : ";97 display(actual);98 tlog << '\n';99}100 101} // namespace testing102} // namespace LIBC_NAMESPACE_DECL103