[Mono-dev] vbc compiler treats AscW as CInt with /novbruntimeref
kornelpal at gmail.com
Mon Aug 28 03:03:01 EDT 2006
If I compile the attached file:
vbnc /target:library /novbruntimeref novbruntimeref.vb
I get the result that calls to AscW are replaced with the first parameter
passed to AscW but it is Integer on the stack.
This replacement is done when:
- /novbruntimeref is used
- The called AscW is declared in the code being compiled
- The called AscW is Shared (or is declared in a Module)
- The first argument of the called AscW is ByVal Char
Note that the return value and the other arguments of the called AscW are
dropped and only the first parameter is preserved on the stack.
Also note that this value is really Integer because invalid conversion
causes error with type name Integer.
I found this when tried to figure out why Convert.ToInt32 is required in
AscW. I found no other such hacks (Asc, Chr, ChrW) and I think there are no
Implementing this in vbnc as well could help the VB runtime.
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
More information about the Mono-devel-list