ad44dd500f
Tacking on parts[2] lets us keep things like IWYU comments
#include "something.h" // IWYU pragma: keep
Rerun the script too... not much interesting.
Change-Id: I9f02c81ffece0ecf3e99730d4a12d49e01417ddc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/213697
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
// Copyright 2019 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "experimental/editor/stringslice.h"
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#include <algorithm>
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#include <cassert>
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#include <cstdlib>
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#include <cstring>
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using namespace editor;
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void StringSlice::FreeWrapper::operator()(void* t) { std::free(t); }
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StringSlice::StringSlice(StringSlice&& that)
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: fPtr(std::move(that.fPtr))
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, fLength(that.fLength)
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, fCapacity(that.fCapacity)
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{
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that.fLength = 0;
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that.fCapacity = 0;
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}
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StringSlice& StringSlice::operator=(StringSlice&& that) {
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if (this != &that) {
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this->~StringSlice();
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new (this)StringSlice(std::move(that));
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}
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return *this;
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}
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void StringSlice::insert(std::size_t offset, const char* text, std::size_t length) {
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if (length) {
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offset = std::min(fLength, offset);
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this->reserve(fLength + length); // TODO: reserve extra???
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char* s = fPtr.get();
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assert(s);
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if (offset != fLength) {
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std::memmove(s + offset + length, s + offset, fLength - offset);
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}
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if (text) {
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std::memcpy(s + offset, text, length);
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} else {
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std::memset(s + offset, 0, length);
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}
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fLength += length;
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}
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}
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void StringSlice::remove(std::size_t offset, std::size_t length) {
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if (length && offset < fLength) {
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length = std::min(length, fLength - offset);
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assert(length > 0);
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assert(length + offset <= fLength);
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if (length + offset < fLength) {
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char* s = fPtr.get();
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assert(s);
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std::memmove(s + offset, s + offset + length, fLength - (length + offset));
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}
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fLength -= length;
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}
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}
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void StringSlice::reserve(std::size_t length) {
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if (length && length > fCapacity) {
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fPtr.reset((char*)std::realloc(fPtr.release(), length));
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fCapacity = length;
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}
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}
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void StringSlice::shrink() {
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fPtr.reset((char*)std::realloc(fPtr.release(), fLength));
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fCapacity = fLength;
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}
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