private static SyntaxNode UnaryOperator(RParser.ExprContext expr, Func<ParserRuleContext, Scope, SyntaxNode> transform, Scope scope)
{
Debug.Assert(expr.children.Count == 2);
var op = expr.children[0].GetText();
var value = transform(expr.GetRuleContext<RParser.ExprContext>(0), scope) as ExpressionSyntax;
if (isConstant(value))
return CSharp.ParseExpression(op + value.ToString());
Debug.Assert(value != null);
return unaryOperatorCall.Get(_unaryOperators[op], value);
}
private static SyntaxNode BinaryOperator(RParser.ExprContext expr, Func<ParserRuleContext, Scope, SyntaxNode> transform, Scope scope)
{
var left = transform(expr.GetRuleContext<RParser.ExprContext>(0), scope) as ExpressionSyntax;
var right = transform(expr.GetRuleContext<RParser.ExprContext>(1), scope) as ExpressionSyntax;
Debug.Assert(left != null && right != null);
Debug.Assert(expr.children.Count == 3);
var op = expr.children[1].GetText();
return binaryOperatorCall.Get(_binaryOperators[op], left, right);
}
