Bug? "code too large for try statement" in a Sub with no Try statement

Alessandro71

Alessandro71

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I have a cross platform (B4A/B4i) app which compiles fine on B4A, but the B4i compiler stops with the following message:

Rich (BB code): 
B4i line: 1179
End Sub
shell\src\com\powercruisecontrol\check\b4i_carmodel_subs_0.java:165: error: code too large for try statement
catch (Exception e) {
^
1 error

The referenced line is the "End Sub" of a Sub with no try/catch statements at all.
Looking at the java code, it looks like a try/catch is automatically inserted by the compiler.
Is there a workaround for this?
 
Sandman

Sandman

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Just curious, how many lines are in the try statement in the java code? And how many lines in B4i for that same section?
 
Alessandro71

Alessandro71

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B4i code: 550 lines
resulting java code: 162 lines

the code is actually a sub with a big CreateMap

note: while counting lines for answering your question, I noticed that the error occurs only in Debug mode.
Release mode is fine.
 
stevel05

stevel05

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Without seeing the code I'm guessing in the dark but can't you split the code. Use CreateMap for the elements that aren't going to fail and add the ones that might in a try block afterwards?
 

DonManfred

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Alessandro71 said:
there is no try block at all
Click to expand...
there are try catch-blocks added if you compile the b4x-code to an app which results in java-files.

if you got this error one solution (probably the best) is to split up the sub into several smaller SUBs.
 
Last edited:

Alessandro71

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this case is peculiar: the sub is not "large" (550 lines), but consisting of a CreateMap of objects.
i don't see how this kind of data can be put outside of the code.
B4X: 
dataset = CreateMap( _
    CAR1:    Array As Object(m_1, m_2), _
    CAR1:    Array As Object(m_1, m_3, m_4), _
...

anyway, as i said, i solved by splitting the sub
 
Last edited:
E

emexes

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There is a 64k limit on modules, of either code or literal data or both (can't remember).

550 lines would average to 120 bytes per array of objects, and between the array descriptor and the objects and maybe associated garbage-keeping information, it wouldn't surprise me if an array of three objects was around that same size.
 
E

emexes

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Alessandro71 said:
"64k limit on modules" and it's 1981 all over again
Click to expand...

The limit was discussed in a 2019 thread:

Select Case compiles ok but run no good

I know the Select Case statement is large. When i run the class it leads to this error. But when i compile, it is ok. Should I be concerned with this? Will it pose a problem if i don't split it? It did compile ok. B4A Version: 9.01.2 Java Version: 8 Parsing code. (0.45s) Building...
www.b4x.com

and it took me a while to find the more-detailed info on it because that page no longer exists:

https://www.javaworld.com/article/2073208/reproducing--code-too-large--problem-in-java.html

and there is another discussion of it at:

“Code too large” Compilation Error in Java | Baeldung

Learn what causes the compiler error "code too large", along with situations where we might encounter it and what we can do to fix it.
www.baeldung.com
 
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