Hash :
d7aa0130
Author :
Date :
2021-04-26T16:56:15
Upstream Apple's direct-to-Metal backend: compile translator. This change is meant to merge the translator changes from Apple's direct-to-Metal backend. Taken from Kyle Piddington's CL: https://chromium-review.googlesource.com/c/angle/angle/+/2857366/ The goal of this CL is to merge the translator code in a state that compiles, but not to switch the Metal backend over to use this translator backend yet. Bug: angleproject:5505 Change-Id: I68a6354604498cd5fd1eb96c13fc56f3b38f2bd0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2897536 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
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//
// Copyright 2020 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#include <iostream>
#include "compiler/translator/InfoSink.h"
namespace sh
{
class StringObserver
{
public:
StringObserver(const std::string &needle) : needle(needle) { ASSERT(!needle.empty()); }
bool observe(char c)
{
if (needle[currPos] == c)
{
++currPos;
if (currPos == needle.size())
{
reset();
return true;
}
}
else
{
reset();
}
return false;
}
const std::string &getNeedle() const { return needle; }
void reset() { currPos = 0; }
private:
std::string needle;
size_t currPos = 0;
};
class DebugSink : angle::NonCopyable
{
public:
friend class EscapedSink;
class EscapedSink : angle::NonCopyable
{
friend class DebugSink;
private:
EscapedSink(DebugSink &owner) : mOwner(owner), mBegin(owner.size()) {}
public:
EscapedSink(EscapedSink &&other) : mOwner(other.mOwner), mBegin(other.mBegin) {}
~EscapedSink()
{
const char *p = mOwner.c_str();
const int end = mOwner.size();
mOwner.onWrite(p + mBegin, p + end);
}
TInfoSinkBase &get() { return mOwner.mParent; }
operator TInfoSinkBase &() { return get(); }
private:
DebugSink &mOwner;
const int mBegin;
};
public:
DebugSink(TInfoSinkBase &parent, bool alsoLogToStdout)
: mParent(parent), mAlsoLogToStdout(alsoLogToStdout)
{}
void watch(std::string const &needle)
{
if (!needle.empty())
{
mObservers.emplace_back(needle);
}
}
void erase()
{
mParent.erase();
for (StringObserver &observer : mObservers)
{
observer.reset();
}
}
int size() { return mParent.size(); }
const TPersistString &str() const { return mParent.str(); }
const char *c_str() const { return mParent.c_str(); }
EscapedSink escape() { return EscapedSink(*this); }
template <typename T>
DebugSink &operator<<(const T &value)
{
const size_t begin = mParent.size();
mParent << value;
const size_t end = mParent.size();
const char *p = mParent.c_str();
onWrite(p + begin, p + end);
return *this;
}
private:
void onWrite(const char *begin, char const *end)
{
const char *p = begin;
while (p != end)
{
if (mAlsoLogToStdout)
{
std::cout << *p;
}
for (StringObserver &observer : mObservers)
{
if (observer.observe(*p))
{
if (mAlsoLogToStdout)
{
std::cout.flush();
}
const std::string &needle = observer.getNeedle();
(void)needle;
ASSERT(true); // place your breakpoint here
}
}
++p;
}
if (mAlsoLogToStdout)
{
std::cout.flush();
}
}
private:
TInfoSinkBase &mParent;
std::vector<StringObserver> mObservers;
bool mAlsoLogToStdout;
};
} // namespace sh