/// <summary>
/// Static constructor
/// </summary>
/// <exception cref="SassCompilerLoadException">Failed to load a Sass-compiler.</exception>
static SassCompiler()
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
try
{
AssemblyResolver.Initialize();
}
catch (InvalidOperationException e)
{
throw SassErrorHelpers.WrapCompilerLoadException(e);
}
}
}
/// <summary>
/// Initializes a Sass compiler
/// </summary>
private static void Initialize()
{
if (_initialized)
{
return;
}
lock (_initializationSynchronizer)
{
if (_initialized)
{
return;
}
try
{
_version = SassCompilerProxy.GetVersion();
_languageVersion = SassCompilerProxy.GetLanguageVersion();
}
catch (DllNotFoundException e)
{
throw WrapDllNotFoundException(e);
}
#if NETSTANDARD1_3
catch (TypeLoadException e)
#else
catch (EntryPointNotFoundException e)
#endif
{
string message = e.Message;
if (message.ContainsQuotedValue(DllName.Universal) &&
(message.ContainsQuotedValue("libsass_version") || message.ContainsQuotedValue("libsass_language_version")))
{
_version = "0.0.0";
_languageVersion = "0.0";
}
else
{
throw SassErrorHelpers.WrapCompilerLoadException(e, true);
}
}
catch (Exception e)
{
throw SassErrorHelpers.WrapCompilerLoadException(e, true);
}
_initialized = true;
}
}
/// <summary>
/// Initializes a Sass compiler
/// </summary>
private void InitializeCompiler()
{
if (_initialized)
{
return;
}
lock (_initializationSynchronizer)
{
if (_initialized)
{
return;
}
string serializedOptions = _jsonSerializer.SerializeObject(_options);
try
{
_jsEngine = _createJsEngineInstance();
_jsEngine.EmbedHostObject(FILE_MANAGER_VARIABLE_NAME, _fileManager);
_jsEngine.SetVariableValue(CURRENT_OS_PLATFORM_NAME, GetCurrentOSPlatformName());
Assembly assembly = this.GetType()
#if !NET40
.GetTypeInfo()
#endif
.Assembly
;
_jsEngine.ExecuteResource(ResourceHelpers.GetResourceName(ES6_POLYFILLS_FILE_NAME), assembly, true);
_jsEngine.ExecuteResource(ResourceHelpers.GetResourceName(SASS_LIBRARY_FILE_NAME), assembly, true);
_jsEngine.ExecuteResource(ResourceHelpers.GetResourceName(SASS_HELPER_FILE_NAME), assembly, true);
_jsEngine.Execute($"var sassHelper = new SassHelper({serializedOptions});");
_version = _jsEngine.Evaluate <string>("SassHelper.getVersion();");
}
catch (JsEngineLoadException e)
{
throw SassErrorHelpers.WrapCompilerLoadException(e);
}
catch (JsException e)
{
throw SassErrorHelpers.WrapCompilerLoadException(e, true);
}
_initialized = true;
}
}
