7a129f0756
This is the first piece of scanf. It's very similar in design to printf, and so much of the code is copied from that. There were potential issues with conflicting macros so I've also renamed the "ASSERT_FORMAT_EQ" macro for printf to "ASSERT_PFORMAT_EQ". Reviewed By: sivachandra Differential Revision: https://reviews.llvm.org/D136288
100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
//===-- ScanfMatcher.cpp ----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "ScanfMatcher.h"
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#include "src/__support/FPUtil/FPBits.h"
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#include "src/stdio/scanf_core/core_structs.h"
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#include "utils/UnitTest/StringUtils.h"
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#include <stdint.h>
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namespace __llvm_libc {
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namespace scanf_core {
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namespace testing {
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bool FormatSectionMatcher::match(FormatSection actualValue) {
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actual = actualValue;
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return expected == actual;
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}
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namespace {
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#define IF_FLAG_SHOW_FLAG(flag_name) \
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do { \
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if ((form.flags & FormatFlags::flag_name) == FormatFlags::flag_name) \
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stream << "\n\t\t" << #flag_name; \
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} while (false)
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#define CASE_LM(lm) \
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case (LengthModifier::lm): \
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stream << #lm; \
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break
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void display(testutils::StreamWrapper &stream, FormatSection form) {
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stream << "Raw String (len " << form.raw_string.size() << "): \"";
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for (size_t i = 0; i < form.raw_string.size(); ++i) {
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stream << form.raw_string[i];
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}
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stream << "\"";
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if (form.has_conv) {
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stream << "\n\tHas Conv\n\tFlags:";
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IF_FLAG_SHOW_FLAG(NO_WRITE);
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IF_FLAG_SHOW_FLAG(ALLOCATE);
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stream << "\n";
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stream << "\tmax width: " << form.max_width << "\n";
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stream << "\tlength modifier: ";
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switch (form.length_modifier) {
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CASE_LM(NONE);
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CASE_LM(l);
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CASE_LM(ll);
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CASE_LM(h);
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CASE_LM(hh);
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CASE_LM(j);
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CASE_LM(z);
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CASE_LM(t);
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CASE_LM(L);
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}
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stream << "\n";
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// If the pointer is used (NO_WRITE is not set and the conversion isn't %).
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if (((form.flags & FormatFlags::NO_WRITE) == 0) &&
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(form.conv_name != '%')) {
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stream << "\tpointer value: "
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<< int_to_hex<uintptr_t>(
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reinterpret_cast<uintptr_t>(form.output_ptr))
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<< "\n";
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}
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stream << "\tconversion name: " << form.conv_name << "\n";
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if (form.conv_name == '[') {
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stream << "\t\t";
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for (size_t i = 0; i < 256 /* char max */; ++i) {
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if (form.scan_set.test(i)) {
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stream << static_cast<char>(i);
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}
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}
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stream << "\n\t]\n";
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}
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}
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}
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} // anonymous namespace
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void FormatSectionMatcher::explainError(testutils::StreamWrapper &stream) {
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stream << "expected format section: ";
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display(stream, expected);
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stream << '\n';
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stream << "actual format section : ";
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display(stream, actual);
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stream << '\n';
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}
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} // namespace testing
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} // namespace scanf_core
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} // namespace __llvm_libc
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