private static IEnumerable <Expression> TryFinallyBuilder(LightExceptionTests self)
{
using (new DepthHolder(self)) {
foreach (var body in self.GetStatements())
{
foreach (var handler in self.GetStatements())
{
yield return(Expression.TryFinally(AddLogging(body, "try finally"), AddLogging(handler, "finally")));
}
}
}
}
private static IEnumerable <Expression> TryCatchBuilder(LightExceptionTests self)
{
using (new DepthHolder(self)) {
foreach (var body in self.GetStatements())
{
foreach (var handler in self.GetStatements())
{
for (int i = 0; i < _catchExtras.Length; i++)
{
var extra = _catchExtras[i];
yield return(AddLogging(
Expression.TryCatch(
Expression.Block(typeof(void), body),
Expression.Catch(
typeof(Exception),
AddLogging(Expression.Block(typeof(void), handler, extra), "catch " + i)
)
),
"try"
));
yield return(AddLogging(
Expression.TryCatch(
Expression.Block(typeof(void), body),
Expression.Catch(
typeof(InvalidOperationException),
AddLogging(Expression.Block(typeof(void), handler, extra), "invalidEx catch 1 " + i)
)
),
"try"
));
yield return(AddLogging(
Expression.TryCatch(
Expression.Block(typeof(void), body),
Expression.Catch(
typeof(InvalidOperationException),
AddLogging(Expression.Block(typeof(void), handler, extra), "invalidEx catch 2 " + i)
),
Expression.Catch(
typeof(InvalidOperationException),
AddLogging(Expression.Block(typeof(void), handler, extra), "catch " + i)
)
),
"try"
));
}
}
}
}
}
private static IEnumerable <Expression> CallBuilder(LightExceptionTests self)
{
yield return(AddLogging(LightExceptions.CheckAndThrow(Expression.Call(typeof(LightExceptionTests).GetMethod(nameof(LightExceptionTests.SomeCall)))), "call"));
yield return(AddLogging(Expression.Call(typeof(LightExceptionTests).GetMethod(nameof(LightExceptionTests.ThrowingCall))), "call throw"));
yield return(AddLogging(Expression.Call(typeof(LightExceptionTests).GetMethod(nameof(LightExceptionTests.ThrowingCallInvalidOp))), "call throw invalidop"));
yield return(AddLogging(LightExceptions.CheckAndThrow(Expression.Call(typeof(LightExceptionTests).GetMethod(nameof(LightExceptionTests.LightThrowingCall)))), "call throw"));
yield return(AddLogging(LightExceptions.CheckAndThrow(Expression.Call(typeof(LightExceptionTests).GetMethod(nameof(LightExceptionTests.LightThrowingCallInvalidOp)))), "call throw invalidop"));
yield return(AddLogging(DynamicExpression.Dynamic(new LightExBinder("test", false), typeof(object), Expression.Constant(42)), "dynamic throw"));
yield return(AddLogging(
DynamicExpression.Dynamic(new LightExBinder("test", false), typeof(object),
DynamicExpression.Dynamic(new LightExBinder("foo", false), typeof(object), Expression.Constant(42))), "dynamic nothrow"));
}
public static void RunTests()
{
var param = Expression.Parameter(typeof(Exception), "foo");
var lambdax = Expression.Lambda <Func <object> >(
Expression.Block(
LightExceptions.RewriteExternal(
Expression.TryCatch(
Expression.Default(typeof(object)),
Expression.Catch(param, Expression.Default(typeof(object)))
)
),
LightExceptions.RewriteExternal(
Expression.TryCatch(
Expression.Default(typeof(object)),
Expression.Catch(param, Expression.Default(typeof(object)))
)
)
)
);
lambdax.Compile()();
CompilerHelpers.LightCompile(lambdax)();
var builder = new LightExceptionTests();
List <string> record = new List <string>();
List <string> rewriteRecord = new List <string>();
int testCount = 0;
try {
foreach (var lambda in builder.MakeLambda())
{
// run each test in normal and lightweight exception modes, make sure they have the same result
try {
object res = lambda.Compile()(record);
if (res != null)
{
record.Add(res.ToString());
}
} catch (Exception e) {
record.Add(String.Format("EXCEPTION {0}", e.GetType()));
}
try {
object res = ((Expression <Func <List <string>, object> >)LightExceptions.Rewrite(lambda)).Compile()(rewriteRecord);
Exception e = LightExceptions.GetLightException(res);
if (e != null)
{
rewriteRecord.Add(String.Format("EXCEPTION {0}", e.GetType()));
}
else if (res != null)
{
rewriteRecord.Add(res.ToString());
}
} catch (Exception e) {
rewriteRecord.Add(String.Format("EXCEPTION {0}", e.GetType()));
}
if (record.Count != rewriteRecord.Count)
{
PrintLambda(lambda, record, rewriteRecord);
throw new Exception("Records differ in length");
}
for (int i = 0; i < record.Count; i++)
{
if (record[i] != rewriteRecord[i])
{
PrintLambda(lambda, record, rewriteRecord);
throw new Exception("Records differ");
}
}
record.Clear();
rewriteRecord.Clear();
testCount++;
}
} finally {
Console.Write("Ran {0} tests", testCount);
}
}
public DepthHolder(LightExceptionTests builder)
{
Builder = builder;
builder._depth++;
}
private static IEnumerable <Expression> ThrowBuilder(LightExceptionTests self)
{
yield return(AddLogging(Expression.Throw(Expression.New(typeof(Exception))), "throw ex"));
yield return(AddLogging(Expression.Throw(Expression.New(typeof(InvalidOperationException))), "throw invalidEx"));
}
private static IEnumerable <Expression> ReturnBuilder(LightExceptionTests self)
{
yield return(Expression.Return(_ret, Expression.Default(typeof(object))));
}