public object Execute(AutoAttributeContext context)
{
string classScript = "";
if (_parser.NextToken() != TokenType.Eof)
{
if (_parser.Token == TokenType.Comment ||
_parser.Token == TokenType.LineComment)
{
_parser.SkipComments();
}
if (_parser.Token == TokenType.Symbol && _parser.TokenSymbol == "{")
{
classScript = DefaultUsings +
" class Expression { \n " +
" public static object Execute(AutoAttributeContext context) " +
PreparedScript +
" } ";
}
}
Console.WriteLine(classScript);
var assembly = CSScript.LoadCode(classScript);
MethodDelegate method = assembly.GetStaticMethod("*.Execute", context);
return(method(context));
}
public static void LoadScript(string script)
{
if (String.IsNullOrEmpty(script))
{
return;
}
var parser = new CsParser(script);
while (parser.NextToken() != TokenType.Eof)
{
if (parser.Token == TokenType.Comment ||
parser.Token == TokenType.LineComment)
{
parser.SkipComments();
}
else if (parser.Token != TokenType.Eof)
{
var classScript = DefaultUsings + "\n" + script;
/* ObjectCacheItem<string, Assembly> cached;
* // lock (ScriptLoadLock)
* cached = ScriptCache.Find(classScript);
*
* if (cached == null)
* {
* //lock (ScriptLoadLock)
* {
* var assembly = CSScript.LoadCode(classScript);
* ScriptCache.Add(assembly, classScript);
* }
* }*/ // 09-02-17
/*ScriptCache.GetOrAdd(classScript, s =>
* new Lazy<Assembly>(() => CSScript.LoadCode(s)));*/ // 10-02-17
ScriptCacheLock.AcquireReaderLock(LockTimeout);
try
{
var cached = ScriptCache.Find(classScript);
if (cached == null)
{
var lc = ScriptCacheLock.UpgradeToWriterLock(LockTimeout);
try
{
cached = ScriptCache.Find(classScript);
if (cached != null)
{
return;
}
var assembly = CSScript.LoadCode(classScript);
ScriptCache.Add(assembly, classScript);
}
finally
{
ScriptCacheLock.DowngradeFromWriterLock(ref lc);
}
}
return;
}
finally
{
ScriptCacheLock.ReleaseReaderLock();
}
}
}
}
public Assembly Compile(string resultType)
{
//TODO: дописать различные виды вызова скрипта в зависимости от типа
// try
// {
string classScript = "";
/*
* switch (ScriptType)
* {
* case ScriptType.Class:
* classScript = DefaultUsings + PreparedScript;
* break;
*
* case ScriptType.Function:
* classScript = DefaultUsings +
* " class Expression { \n " +
* " public static " + resultType + " Execute(WorkflowContext context) " +
* PreparedScript +
* " } ";
* break;
*
* case ScriptType.Expression:
* classScript = DefaultUsings +
* " class Expression { \n " +
* " public static " + resultType + " Execute(WorkflowContext context) { " +
* " return " + PreparedScript + " ; " +
* " } " +
* " } ";
* break;
* }*/
if (_parser.NextToken() != TokenType.Eof)
{
if (_parser.Token == TokenType.Comment ||
_parser.Token == TokenType.LineComment)
{
_parser.SkipComments();
}
if (_parser.Token == TokenType.Symbol && _parser.TokenSymbol == "{")
{
classScript = DefaultUsings +
" class Expression { \n " +
" public static " + resultType + " Execute(WorkflowContext context) " +
PreparedScript +
" } ";
}
else if (_parser.Token == TokenType.Symbol ||
_parser.TokenSymbol == "(")
{
classScript = DefaultUsings +
" class Expression { \n " +
" public static " + resultType + " Execute(WorkflowContext context) { " +
" return " + PreparedScript + " ; " +
" } " +
" } ";
}
else
{
classScript = DefaultUsings + PreparedScript;
}
}
else
{
classScript = DefaultUsings +
" class Expression { \n " +
" public static " + resultType + " Execute(WorkflowContext context) {" +
PreparedScript +
" }} ";
}
/*ObjectCacheItem<string, Assembly> cached;
* // lock (ScriptLoadLock)
* cached = ScriptCache.Find(classScript);
*
* if (cached != null) return cached.CachedObject;*/// 09-02-17
//lock (ScriptLoadLock) // 09-02-17
/*return ScriptCache.GetOrAdd(classScript, s =>
* new Lazy<Assembly>(() =>
* {
* CSScript.AssemblyResolvingEnabled = true;
* //Evaluator.ReferenceAssembliesFromCode(code);
* return CSScript.LoadCode(s);
* //ScriptCache.Add(assembly, classScript);
*
* //return assembly;
* })).Value;*/// 10-02-17
ScriptCacheLock.AcquireReaderLock(LockTimeout);
try
{
var cached = ScriptCache.Find(classScript);
if (cached != null)
{
return(cached.CachedObject);
}
var lc = ScriptCacheLock.UpgradeToWriterLock(LockTimeout);
try
{
cached = ScriptCache.Find(classScript);
if (cached != null)
{
return(cached.CachedObject);
}
CSScript.AssemblyResolvingEnabled = true;
//Evaluator.ReferenceAssembliesFromCode(code);
var assembly = CSScript.LoadCode(classScript);
ScriptCache.Add(assembly, classScript);
return(assembly);
}
finally
{
ScriptCacheLock.DowngradeFromWriterLock(ref lc);
}
}
finally
{
ScriptCacheLock.ReleaseReaderLock();
}
}