public static ExpressionSyntax ParseExpression(string text)
{
if (text == null)
{
throw new ArgumentNullException(nameof(text));
}
var tree = SyntaxTree.ParseExpression(text);
return((ExpressionSyntax)tree.Root.Root);
}
private void EnsureCompiled()
{
if (_expressionEvaluator != null)
{
return;
}
var syntaxTree = SyntaxTree.ParseExpression(Text);
var compilation = Compilation.Create(DataContext, syntaxTree);
var compiledQuery = compilation.Compile();
var expressionEvaluator = compiledQuery.CreateExpressionEvaluator();
Interlocked.CompareExchange(ref _expressionEvaluator, expressionEvaluator, null);
}
public static Compilation CreateExpression(string text)
{
var syntaxTree = SyntaxTree.ParseExpression(text);
return(Compilation.Create(DataContext, syntaxTree));
}
