Move hlsl/ source to glslang/HLSL/

Now that the HLSL source files are part of the `glslang` target (#2271), it makes sense for these to sit in the `glslang` directory.

Changed the case of the directory from `hlsl` to `HLSL` to better match the sibling directories.

hlsl/hlslTokenStream.cpp

@@ -1,150 +0,0 @@
-//
-// Copyright (C) 2016 Google, Inc.
-//
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-//
-//    Redistributions of source code must retain the above copyright
-//    notice, this list of conditions and the following disclaimer.
-//
-//    Redistributions in binary form must reproduce the above
-//    copyright notice, this list of conditions and the following
-//    disclaimer in the documentation and/or other materials provided
-//    with the distribution.
-//
-//    Neither the name of Google, Inc., nor the names of its
-//    contributors may be used to endorse or promote products derived
-//    from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-// POSSIBILITY OF SUCH DAMAGE.
-//
-
-#include "hlslTokenStream.h"
-
-namespace glslang {
-
-void HlslTokenStream::pushPreToken(const HlslToken& tok)
-{
-    assert(preTokenStackSize < tokenBufferSize);
-    preTokenStack[preTokenStackSize++] = tok;
-}
-
-HlslToken HlslTokenStream::popPreToken()
-{
-    assert(preTokenStackSize > 0);
-
-    return preTokenStack[--preTokenStackSize];
-}
-
-void HlslTokenStream::pushTokenBuffer(const HlslToken& tok)
-{
-    tokenBuffer[tokenBufferPos] = tok;
-    tokenBufferPos = (tokenBufferPos+1) % tokenBufferSize;
-}
-
-HlslToken HlslTokenStream::popTokenBuffer()
-{
-    // Back up
-    tokenBufferPos = (tokenBufferPos+tokenBufferSize-1) % tokenBufferSize;
-
-    return tokenBuffer[tokenBufferPos];
-}
-
-//
-// Make a new source of tokens, not from the source, but from an
-// already pre-processed token stream.
-//
-// This interrupts current token processing which must be restored
-// later.  Some simplifying assumptions are made (and asserted).
-//
-void HlslTokenStream::pushTokenStream(const TVector<HlslToken>* tokens)
-{
-    // not yet setup to interrupt a stream that has been receded
-    // and not yet reconsumed
-    assert(preTokenStackSize == 0);
-
-    // save current state
-    currentTokenStack.push_back(token);
-
-    // set up new token stream
-    tokenStreamStack.push_back(tokens);
-
-    // start position at first token:
-    token = (*tokens)[0];
-    tokenPosition.push_back(0);
-}
-
-// Undo pushTokenStream(), see above
-void HlslTokenStream::popTokenStream()
-{
-    tokenStreamStack.pop_back();
-    tokenPosition.pop_back();
-    token = currentTokenStack.back();
-    currentTokenStack.pop_back();
-}
-
-// Load 'token' with the next token in the stream of tokens.
-void HlslTokenStream::advanceToken()
-{
-    pushTokenBuffer(token);
-    if (preTokenStackSize > 0)
-        token = popPreToken();
-    else {
-        if (tokenStreamStack.size() == 0)
-            scanner.tokenize(token);
-        else {
-            ++tokenPosition.back();
-            if (tokenPosition.back() >= (int)tokenStreamStack.back()->size())
-                token.tokenClass = EHTokNone;
-            else
-                token = (*tokenStreamStack.back())[tokenPosition.back()];
-        }
-    }
-}
-
-void HlslTokenStream::recedeToken()
-{
-    pushPreToken(token);
-    token = popTokenBuffer();
-}
-
-// Return the current token class.
-EHlslTokenClass HlslTokenStream::peek() const
-{
-    return token.tokenClass;
-}
-
-// Return true, without advancing to the next token, if the current token is
-// the expected (passed in) token class.
-bool HlslTokenStream::peekTokenClass(EHlslTokenClass tokenClass) const
-{
-    return peek() == tokenClass;
-}
-
-// Return true and advance to the next token if the current token is the
-// expected (passed in) token class.
-bool HlslTokenStream::acceptTokenClass(EHlslTokenClass tokenClass)
-{
-    if (peekTokenClass(tokenClass)) {
-        advanceToken();
-        return true;
-    }
-
-    return false;
-}
-
-} // end namespace glslang