FWD » Core Development » Base Language

02/26/2019

03:58 AM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> The successful approaches in the example Java code above cannot be used to solve the type erasure... Ovidiu Maxiniuc

02/25/2019

04:52 PM Feature #3751: implement support for OO 4GL and structured error handling

I did check to confirm that OO 4GL does implement virtual method dispatching as one would expect. In other words, ca... Greg Shah

04:49 PM Feature #3751: implement support for OO 4GL and structured error handling

+Type Erasure in Java+
Some aspects of compiled type-safe Java code are erased by the compiler. When this happens... Greg Shah

04:46 PM Feature #3751: implement support for OO 4GL and structured error handling

h2. Method Overloading
h3. Introduction
We've written testcases to check the behavior of the remaining issues r... Greg Shah

03:27 PM Feature #3751: implement support for OO 4GL and structured error handling

Some notes relates to implementing the 4GL builtin classes in FWD:
* the class needs to be annotated with @LegacyRes... Constantin Asofiei

02/19/2019

06:08 PM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> Good. :) I was worried that I had missed something.
As we are still on the overload subject: I ... Constantin Asofiei

05:53 PM Feature #3751: implement support for OO 4GL and structured error handling

Good. :) I was worried that I had missed something. Greg Shah

05:46 PM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> Do you have a testcase that shows a different result?
No.
Constantin Asofiei

05:42 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> There's another case regarding the parameter modes at the method's signature: the caller... Greg Shah

02/18/2019

06:23 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> There's another case regarding the parameter modes at the method's signature: the caller... Constantin Asofiei

03:45 PM Feature #3751: implement support for OO 4GL and structured error handling

There's another case regarding the parameter modes at the method's signature: the caller is not required to specify t... Constantin Asofiei

02/14/2019

05:54 PM Feature #3751: implement support for OO 4GL and structured error handling

> But there is no tempidx annotation emitted by the parser, so I don't know the targeted constructor. Greg, can you p... Greg Shah

05:48 PM Feature #3751: implement support for OO 4GL and structured error handling

And something else to mention: after FUNCTION/PROCEDURES and the CALL handle, the 4GL's 'reflection' is the third way... Constantin Asofiei

05:30 PM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> I understand the need for the modes/signature for proper runtime matching. It does seem like we ... Constantin Asofiei

05:21 PM Feature #3751: implement support for OO 4GL and structured error handling

> But there is no tempidx annotation emitted by the parser, so I don't know the targeted constructor. Greg, can you p... Greg Shah

05:15 PM Feature #3751: implement support for OO 4GL and structured error handling

I understand the need for the modes/signature for proper runtime matching. It does seem like we could put all of thi... Greg Shah

05:08 PM Feature #3751: implement support for OO 4GL and structured error handling

The same idea is with the constructors - the 4GL compilers 'hard links' the NEW with the constructor definition. We ... Constantin Asofiei

04:56 PM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> > I solved this by emitting the signature at the Java method or constructor (for OO cases).
> ... Constantin Asofiei

04:50 PM Feature #3751: implement support for OO 4GL and structured error handling

> I solved this by emitting the signature at the Java method or constructor (for OO cases).
Can you clarify this... Greg Shah

04:24 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> FYI, @ClassDefinition.isWideningTypeMatch@ was not extracted correct.
Fixed in 3750b ... Greg Shah

02:11 PM Feature #3751: implement support for OO 4GL and structured error handling

FYI, @ClassDefinition.isWideningTypeMatch@ was not extracted correct. Constantin Asofiei

12:46 PM Feature #3751: implement support for OO 4GL and structured error handling

The constructors referenced by the @NEW@ statement must always be disambiguated by the parser phase. The reason is b... Constantin Asofiei

02/05/2019

11:24 AM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> I understand. I was just wondering if our BlockManager exception infrastructure (try/catch/final... Constantin Asofiei

11:21 AM Feature #3751: implement support for OO 4GL and structured error handling

From Constantin:
> 4GL has some cases where a builtin ERROR condition gets converted to a SysError OO exception if... Greg Shah

01/31/2019

03:52 PM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu, about rev 11329:
* there was a merge typo in ObjectOps - I've fixed it in 11330
* you can use @AtomicIntege... Constantin Asofiei

10:41 AM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> The idea is the @? extends Bar@ - Java doesn't allow accessing a private method from a s... Ovidiu Maxiniuc

08:55 AM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> Constantin Asofiei wrote:
> > Does it compile if you edit the file to look like @((Bar) fo... Constantin Asofiei

08:49 AM Feature #3751: implement support for OO 4GL and structured error handling

The same cast is currently generated for private methods. Ovidiu Maxiniuc

08:45 AM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Does it compile if you edit the file to look like @((Bar) foo.ref()).myName.assign(p1);@... Ovidiu Maxiniuc

08:14 AM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> *2*. The destructors are not called for me because for me @ProcedureManager.getStackEntry(0... Constantin Asofiei

07:15 AM Feature #3751: implement support for OO 4GL and structured error handling

Constantin,
Three notes after our last conversation:
*1*. I got what you meant. I will add the necessary support f... Ovidiu Maxiniuc

06:26 AM Feature #3751: implement support for OO 4GL and structured error handling

I don't think counting these objects will be the problem. I think this can be easily done by a context-local integer ... Ovidiu Maxiniuc

01/30/2019

06:31 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> Constantin Asofiei wrote:
> > One more thing to add: do not convert to bulk delete a @for ... Constantin Asofiei

06:23 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> One more thing to add: do not convert to bulk delete a @for tt-buffer: delete tt-buffer... Eric Faulhaber

05:59 PM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> I committed some fixes and a solution for bulk delete. The update contains some optimisatio... Constantin Asofiei

03:32 PM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> If you specify the @FOR@, then the name of the handle must be an existing variable in the externa... Constantin Asofiei

03:29 PM Feature #3751: implement support for OO 4GL and structured error handling

What a ridiculous undocumented "feature". To be clear: when the @FOR handle@ is present, it seems to map the "proced... Greg Shah

12:48 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> The only way I can make it work is like this:
> [...]
> I think you are correct, the F... Constantin Asofiei

12:42 PM Feature #3751: implement support for OO 4GL and structured error handling

The only way I can make it work is like this:... Constantin Asofiei

12:37 PM Feature #3751: implement support for OO 4GL and structured error handling

There is an undocumented "feature" that allows @TABLE-HANDLE FOR@ to be specified. It was seen in customer code and ... Greg Shah

12:27 PM Feature #3751: implement support for OO 4GL and structured error handling

Greg Shah wrote:
> Constantin: Can you think of any reason I should fix this instead of deleting it?
I think it was... Constantin Asofiei

12:01 PM Feature #3751: implement support for OO 4GL and structured error handling

In @common-progress@ there is this function:... Greg Shah

01:45 AM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Please focus on finding the hooks for field assignment and record deletion. I'll fix an... Ovidiu Maxiniuc

01/29/2019

03:55 PM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> Constantin Asofiei wrote:
> > The DESTRUCTOR is called when the object is explicitly delet... Constantin Asofiei

10:25 AM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> The DESTRUCTOR is called when the object is explicitly deleted (via @DELETE OBJECT@) or ... Ovidiu Maxiniuc

11:59 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> 3750b 11320 fixes a conversion problem.
It also converted and compiled fully with the P... Constantin Asofiei

01/28/2019

05:37 PM Feature #3751: implement support for OO 4GL and structured error handling

3750b 11320 fixes a conversion problem. Constantin Asofiei

03:43 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> Do we not know which class' objects will be stored in a field at conversion time, and whethe... Constantin Asofiei

03:40 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Let me rephrase this. We wouldn't 'bulk delete' a loop like this, right?
> [...]
Co... Eric Faulhaber

03:35 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Eric Faulhaber wrote:
> > I think we still could maintain the bulk operations by queryi... Constantin Asofiei

03:25 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> I think we still could maintain the bulk operations by querying the object references first,... Constantin Asofiei

03:20 PM Feature #3751: implement support for OO 4GL and structured error handling

Exactly. This is what I meant in note 436. Ovidiu Maxiniuc

03:15 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Eric Faulhaber wrote:
> > Take for example an EMPTY-TEMP-TABLE statement or a table goi... Eric Faulhaber

03:02 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> Take for example an EMPTY-TEMP-TABLE statement or a table going out of scope. We just do an ... Constantin Asofiei

02:56 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Eric Faulhaber wrote:
> > Are there side effects to an object being gc'd, such that the... Eric Faulhaber

02:55 PM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> I don't think that this is possible (as you noted also, the bulk delete is the main cause h... Constantin Asofiei

02:41 PM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> BTW, I see that the destructor is not yet called. Will it be called automatically when the ... Constantin Asofiei

02:36 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Good question. Yes, there is legacy @DESTRUCTOR@ code which needs to be executed on del... Ovidiu Maxiniuc

02:30 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> Are there side effects to an object being gc'd, such that the delete/gc has to happen at a v... Constantin Asofiei

02:29 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> How are you doing he reference counting for object references stored in temp-tables?
We are... Ovidiu Maxiniuc

02:24 PM Feature #3751: implement support for OO 4GL and structured error handling

Are there side effects to an object being gc'd, such that the delete/gc has to happen at a very specific time/order, ... Eric Faulhaber

02:21 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> How are you doing he reference counting for object references stored in temp-tables?
It doe... Constantin Asofiei

02:20 PM Feature #3751: implement support for OO 4GL and structured error handling

Eric Faulhaber wrote:
> # It is much trickier to know when a record is deleted. We optimize many types of bulk dele... Constantin Asofiei

02:18 PM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> As far as I can tell, if an object is stored in a TEMP-TABLE, it is not automatically disca... Eric Faulhaber

02:16 PM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Eric, is there an easy way to track a DMO property setter (when is being invoked, knowin... Eric Faulhaber

01:58 PM Feature #3751: implement support for OO 4GL and structured error handling

Simple tests with 3750b rev 11319 are working for static temp-tables, static class initialization, static and instanc... Constantin Asofiei

12:16 PM Feature #3751: implement support for OO 4GL and structured error handling

Sorry, my bad, the text capture was done with an object still referred by variable. I rerun the code and the destruct... Ovidiu Maxiniuc

12:05 PM Feature #3751: implement support for OO 4GL and structured error handling

Ovidiu Maxiniuc wrote:
> There are a few interesting notes:
> * the second object created (@C3758Bar_4309@) is drop... Constantin Asofiei

11:54 AM Feature #3751: implement support for OO 4GL and structured error handling

Constantin Asofiei wrote:
> Did you find way to track if a field is changed (to unknown or some other ref)?
I start... Ovidiu Maxiniuc