1 files changed, 129 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/compiler/translator/InfoSink.h b/gfx/angle/checkout/src/compiler/translator/InfoSink.h
new file mode 100644
index 0000000000..100d06ec6b
--- /dev/null
+++ b/gfx/angle/checkout/src/compiler/translator/InfoSink.h
@@ -0,0 +1,129 @@
+//
+// Copyright (c) 2002-2010 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.
+//
+
+#ifndef COMPILER_TRANSLATOR_INFOSINK_H_
+#define COMPILER_TRANSLATOR_INFOSINK_H_
+
+#include <math.h>
+#include <stdlib.h>
+#include "compiler/translator/Common.h"
+#include "compiler/translator/Severity.h"
+
+namespace sh
+{
+
+class ImmutableString;
+class TType;
+
+// Returns the fractional part of the given floating-point number.
+inline float fractionalPart(float f)
+{
+    float intPart = 0.0f;
+    return modff(f, &intPart);
+}
+
+class ImmutableString;
+
+//
+// Encapsulate info logs for all objects that have them.
+//
+// The methods are a general set of tools for getting a variety of
+// messages and types inserted into the log.
+//
+class TInfoSinkBase
+{
+  public:
+    TInfoSinkBase() {}
+
+    template <typename T>
+    TInfoSinkBase &operator<<(const T &t)
+    {
+        TPersistStringStream stream = sh::InitializeStream<TPersistStringStream>();
+        stream << t;
+        sink.append(stream.str());
+        return *this;
+    }
+    // Override << operator for specific types. It is faster to append strings
+    // and characters directly to the sink.
+    TInfoSinkBase &operator<<(char c)
+    {
+        sink.append(1, c);
+        return *this;
+    }
+    TInfoSinkBase &operator<<(const char *str)
+    {
+        sink.append(str);
+        return *this;
+    }
+    TInfoSinkBase &operator<<(const TPersistString &str)
+    {
+        sink.append(str);
+        return *this;
+    }
+    TInfoSinkBase &operator<<(const TString &str)
+    {
+        sink.append(str.c_str());
+        return *this;
+    }
+    TInfoSinkBase &operator<<(const ImmutableString &str);
+
+    TInfoSinkBase &operator<<(const TType &type);
+
+    // Make sure floats are written with correct precision.
+    TInfoSinkBase &operator<<(float f)
+    {
+        // Make sure that at least one decimal point is written. If a number
+        // does not have a fractional part, the default precision format does
+        // not write the decimal portion which gets interpreted as integer by
+        // the compiler.
+        TPersistStringStream stream = sh::InitializeStream<TPersistStringStream>();
+        if (fractionalPart(f) == 0.0f)
+        {
+            stream.precision(1);
+            stream << std::showpoint << std::fixed << f;
+        }
+        else
+        {
+            stream.unsetf(std::ios::fixed);
+            stream.unsetf(std::ios::scientific);
+            stream.precision(8);
+            stream << f;
+        }
+        sink.append(stream.str());
+        return *this;
+    }
+    // Write boolean values as their names instead of integral value.
+    TInfoSinkBase &operator<<(bool b)
+    {
+        const char *str = b ? "true" : "false";
+        sink.append(str);
+        return *this;
+    }
+
+    void erase() { sink.clear(); }
+    int size() { return static_cast<int>(sink.size()); }
+
+    const TPersistString &str() const { return sink; }
+    const char *c_str() const { return sink.c_str(); }
+
+    void prefix(Severity severity);
+    void location(int file, int line);
+
+  private:
+    TPersistString sink;
+};
+
+class TInfoSink
+{
+  public:
+    TInfoSinkBase info;
+    TInfoSinkBase debug;
+    TInfoSinkBase obj;
+};
+
+}  // namespace sh
+
+#endif  // COMPILER_TRANSLATOR_INFOSINK_H_