Runtime C++ compiling and testing on Unix-like targets (#981)

* Work in progress to be able to invoke VS from within code.

* First pass at windows version of refactor of OSProcessSpawner

* Closer to getting VS path lookup working.

* Make OSString assignable/ctor able

* Work out program files directory directly, so don't have to expand %%.

* WIP: Improve handling of process spawning.

* Add support for splitting input by line.

* * Correctly locates visual studio install
* Added functionality to invoke vs via cmd

* Add option to execute the command line.

* Handle in ProcessUtil for windows -> WinHandle.

* Rename files slang-win-visual-studio-util.cpp/.h and slang-process-util.h

* First pass at unix/linux version of ProcessUtil.

* Fix reading Visual Studio path from the registry.

* Get compiling on linux with.

* Fix vcvarsall.bat name

* Use ProcessUtil to execute external code.

* Remove OSProcessSpawner.

* Remove includes for "os.h" where no longer needed.

* Fix tabbing issue in premake5.lua
Remove test code from slang-test-main.cpp

* Fix premake4.lua tabbing issue.

* Small fixes to slang-process-util.h
Init ExecuteResult on Win execute.

* Improve comments.

* Fix bug in StringUtil::calcLines - with oddly terminated source input being able to read past end.
Make slang-generate use StringUtil over it's own impl.

* Fix off by one bug in working out Visual Studio version.

* Fix bug in calculating Visual Studio Version

* Fix compilation on linux with string parameter being passed to messageFormat.

* Remove erroneous use of kOSError codes - use Result.

* First effort to generate standard compiler options.

* Initial efforts in compiling source code in test framework for VisualStudio.

* Testing compiling c code on VisualStudio on Windows.

* Fix warning on linux.

* Fix clang on linux warning (and therefore failing) returning a StringBuilder as String.

* Disable return-std-move on clang.

* CommandLine arguments are now tagged if they are escaped or not. That it is the clients responsibility to escape command lines that cannot be automatically escaped.

* Add checks on unix/linux that command line args are all unescaped.

* WIP getting runtime GCC to work.

* First pass compiler working on unix-like targets.

* Enable c-compile.c test on 'smoke'.

1 files changed, 24 insertions, 0 deletions

diff --git a/source/core/slang-string-util.cpp b/source/core/slang-string-util.cpp
index e571bbc99..60ebc45ba 100644
--- a/source/core/slang-string-util.cpp
+++ b/source/core/slang-string-util.cpp
@@ -243,4 +243,28 @@ ComPtr<ISlangBlob> StringUtil::createStringBlob(const String& string)
     }
 }
 
+/* static */bool StringUtil::areLinesEqual(const UnownedStringSlice& a, const UnownedStringSlice& b)
+{
+    List<UnownedStringSlice> slicesA;
+    List<UnownedStringSlice> slicesB;
+
+    calcLines(a, slicesA);
+    calcLines(b, slicesB);
+
+    const auto linesCount = slicesA.getCount();
+    if (linesCount != slicesB.getCount())
+    {
+        return false;
+    }
+
+    for (Index i = 0; i < linesCount; ++i)
+    {
+        if (slicesA[i] != slicesB[i])
+        {
+            return false;
+        }
+    }
+    return true;
+}
+
 } // namespace Slang