public Expression Parse(string expression, DataContextStack dataContexts, BindingParserOptions options)
{
try
{
var tokenizer = new BindingTokenizer();
tokenizer.Tokenize(expression);
var parser = new BindingParser();
parser.Tokens = tokenizer.Tokens;
var node = parser.ReadExpression();
if (!parser.OnEnd())
{
throw new BindingCompilationException(
$"Unexpected token '{expression.Substring(0, parser.Peek().StartPosition)} ---->{parser.Peek().Text}<---- {expression.Substring(parser.Peek().EndPosition)}'",
null, new TokenBase[] { parser.Peek() });
}
foreach (var n in node.EnumerateNodes())
{
if (n.HasNodeErrors)
{
throw new BindingCompilationException(string.Join(", ", n.NodeErrors), n);
}
}
var symbols = InitSymbols(dataContexts);
symbols = options.AddTypes(symbols);
var visitor = new ExpressionBuildingVisitor(symbols);
visitor.Scope = symbols.Resolve(options.ScopeParameter);
return(visitor.Visit(node));
}
catch (Exception ex)
{
ex.ForInnerExceptions <BindingCompilationException>(bce =>
{
if (bce.Expression == null)
{
bce.Expression = expression;
}
});
throw;
}
}
public Expression Parse(string expression, DataContextStack dataContexts, BindingParserOptions options)
{
try
{
var tokenizer = new BindingTokenizer();
tokenizer.Tokenize(new StringReader(expression));
var parser = new BindingParser();
parser.Tokens = tokenizer.Tokens;
var node = parser.ReadExpression();
if (!parser.OnEnd())
{
throw new BindingCompilationException(
$"Unexpected token '{expression.Substring(0, parser.Peek().StartPosition)} ---->{parser.Peek().Text}<---- {expression.Substring(parser.Peek().StartPosition + parser.Peek().Length)}'",
null, new TokenBase[] { parser.Peek() });
}
foreach (var n in node.EnumerateNodes())
{
if (n.HasNodeErrors) throw new BindingCompilationException(string.Join(", ", n.NodeErrors), n);
}
var symbols = InitSymbols(dataContexts);
symbols = options.AddTypes(symbols);
var visitor = new ExpressionBuildingVisitor(symbols);
visitor.Scope = symbols.Resolve(options.ScopeParameter);
return visitor.Visit(node);
}
catch (Exception ex)
{
ex.ForInnerExceptions<BindingCompilationException>(bce =>
{
if (bce.Expression == null) bce.Expression = expression;
});
throw;
}
}
