public void InvokeRule()
{
Expression <Func <int, int> > sumar = x => (x + 10);
Expression <Func <int, int> > test = y => sumar.Invoke(y * 3);
var rule = DefaultRewrite.InvokeRule(null);
var ret = Rewriter.GlobalApplyRule(test.Body, rule, x => x);
var expected = "((y * 3) + 10)";
Assert.AreEqual(expected, ret.ToString());
}
public void InvokeRecRule()
{
Expression <Func <int, int, int> > sumar = (a, b) => a + b;
Expression <Func <int, int> > sumar10 = x => sumar.Invoke(x, 10);
Expression <Func <int, int> > test = y => sumar10.Invoke(y * 3);
var rules = new[] {
DefaultRewrite.InvokeRule(null)
};
var ret = ApplyRules(test, rules);
var expected = "y => ((y * 3) + 10)";
Assert.AreEqual(expected, ret.ToString());
}
public SqlRewriteVisitor(SqlExprParams pars)
{
var exprParamRules = SqlFunctions.ExprParamsRules(pars);
//The order of the rule passes is important to the performance and correctness!
rules = new List <IEnumerable <RewriteRule> >();
//Primero quita los invokes
rules.Add(
new[]
{
DefaultRewrite.InvokeRule(exprParamRules)
});
rules.Add(DefaultRewrite.BooleanSimplify);
rules.Add(
exprParamRules
);
rules.Add(
SqlFunctions.rawAtom
.Concat(SqlFunctions.AtomInvokeParam(pars))
.Concat(
new[]
{
SqlConst.constToSqlRule,
DefaultRewrite.StringFormat,
SqlFunctions.rawCallRule
}
)
.Concat(SqlOperators.eqNullRule)
.Concat(SqlOperators.nullableRules)
.Concat(SqlOperators.unaryRules)
.Concat(SqlOperators.binaryRules)
.Concat(SqlStar.starRules)
.Concat(SqlOperators.compareTo)
.Concat(SqlFunctions.stringCalls)
.Concat(SqlFunctions.subqueryExprs)
.Concat(SqlFunctions.sqlCalls)
.Concat(SqlFunctions.AtomRawRule(pars))
.ToList()
)
;
}
public static Expression VisitFromItem(Expression expr)
{
var ret = Rewriter.RecApplyRules(expr, new[] { DefaultRewrite.InvokeRule(null) }, x => false);
return(ret);
}