rtti | Runtime type information for JavaScript and TypeScript | Runtime Evironment library
kandi X-RAY | rtti Summary
kandi X-RAY | rtti Summary
This library bring the benefits of TypeScript's type system to runtime code. By declaring types using runtime constructs, it is possible to add an extra level of runtime type safety that static checking alone cannot provide. For example:. There is no need to declare any type twice (i.e., once for JS and once TS), since the TypeScript type can be inferred from the example property of any given TypeInfo value.
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QUESTION
I have the following problem with using a custom style with a FMX TListBoxItem.
In the following code below, I have created four new styles to use in a TListBoxItem. All four styles show a box (TRectangle) with or without an X (TPath) in it and a TText to the right of it. In two of the styles, I show the X and the other two I don't. One style shows a green box with an X and text that is black and bold. One shows a empty box with just black text. The other two show the same thing but the boxes and the text are red, with the text for the one with the X in the box being bold.
In the program, I have a listbox with four listboxitems added during designtime to show the four different styles. I also have a button that will create an additional four listboxitems with code during runtime which also display the four different styles. All this works, except on one detail. The two red listboxitems that are created during runtime do not use the red font color. You can see this in the following image. ListboxItem1 and ListboxItem2 were created as designtime and are displayed with red text. "Item #1" and "Item #2" are displayed with black text but should be red. Note: "Item #2" does show the bold text correctly.
What am I missing when creating the Listboxitems during runtime that is keeping the red text from showing correctly?
Here's the code, form and styles I am using.
...ANSWER
Answered 2022-Mar-25 at 07:54Remove the line
vItem.StyledSettings := vItem.StyledSettings - [TStyledSetting.FontColor];
Your text is red in the style, but you're telling it to ignore the font colour of the style!
QUESTION
Delphi doesn't directly support any range checking or out-of-range excption raising for typecasts of integers to an enumeration. See: How do I convert an integer to an enumerated type? I am trying to get around this by automatic range checking of an array indexed on the enumeration sub-range. In my test program I deliberately used a non-continuous enumeration, which disables RTTI and provides a test for valid sub-range values that don't have a named enumeration but can be accessed by typecasting, Inc, Dec etc.
The program handles the non-enumerated element of the sub-range (2) as expected, but does not generate an out-of-range exception for the enumerated array - but does for the equivalent integer index array. Is there any good reason for this? I can work around by using the integer indexed array, but the enumeration index would be a bit more robust.
...ANSWER
Answered 2022-Jan-27 at 12:24I have implemented my work-around into a relatively neat solution using an enumeration record helper.
QUESTION
Trying to run this on docker, but I get EBADENGINE unsupported engine warning (and subsquent build fail, which I assume are related at least somewhat).
Docker command (from cloned project root with package.json file):
...ANSWER
Answered 2022-Jan-26 at 14:08Okay that was dumb. But yes, to read those error message for other npm newbs out there:
QUESTION
I'm trying to run Python Faust from Docker.
Based on this documentation: https://faust.readthedocs.io/en/latest/userguide/installation.html
I created a simple Docker file:
...ANSWER
Answered 2021-Dec-27 at 23:37Read the error message, where it is clearly stated you are missing a header file:
fatal error: rocksdb/slice.h: No such file or directory 705 | #include "rocksdb/slice.h" | ^~~~~~~~~~~~~~~~~ compilation terminated. error: command '/usr/bin/gcc' failed with exit code 1
Accordingly, you'll need to build and install RocksDB. This is separate from the installation of faust[rocksdb] with pip. That simply installs python-rocksdb, the Python interface to the underlying libraries.
There is even a (third-party) RocksDB docker image based on Python 3.7 Slim.
You could use that directly or take some tricks from the Dockerfile for that image.
QUESTION
I'm pretty sure it's because I am using t2.nano and not something a little more beefy.
But I have used laravel forge to provision an ec2 server, I can't deploy my application however because I need to install GRPC.
I have followed these instructions: https://cloud.google.com/php/grpc#using-pecl
And when I run: sudo pecl install grpc it runs for around 10 mins and then just gets stuck.
Seems to be running the same thing over and over again, can't quite workout the full stack trace or more importantly where it begins, but I'll post below.
...ANSWER
Answered 2021-Dec-01 at 19:04Upgrade to a bigger tier than the t2.nano and it should work. I think it's because of the RAM limit. I had the same issue with some instances in Digital Ocean.
QUESTION
Im compiling a program I made using make and I get this error
ANSWER
Answered 2021-Nov-28 at 08:16In my case, c++ was the g++ compiler instead of the clang compiler, if you are having a similar issue try updating g++ or clang++(on older macs you may need to have to use brew to install those) or going in your /usr/bin directory(for mac and linux, I never used windows cant help you) and replacing the files(though only do that if you absolutely know what your doing!).
QUESTION
Is there is any way by which I can automate this
...ANSWER
Answered 2021-Nov-09 at 16:46You can store your types in std::tuple...> or TypeList
and then use variadic template.
QUESTION
My statically linked CryptoPP code (when called via Matlab mex on Linux) jumps into the libmwflcryptocryptopp.so binary (and then it freezes).
How can my code jump into a foreign .so instead of the statically linked library?
from function CryptoPP::SourceTemplate::PumpAll2 in my vcpkg_installed/.../cryptopp/filters.h:1443 it jumps into CryptoPP::BufferedTransformation::TransferAllTo2 from Matlabs own libmwflcryptocryptopp.so file.
the gdb stack trace
...ANSWER
Answered 2021-Nov-04 at 15:58TL;DR; your cryptocpp is getting LD_PRELOADed by Matlab, even if it is being linked statically.
A big hint towards what is going on is the path of the .so being loaded:
QUESTION
I'm trying to convert a generic variable of type T into string.
ANSWER
Answered 2021-Aug-25 at 10:24You can check whether T is variant and then use VarToStr on AsVariant function.
You can easily extend that function to cater for other types where ToString will not give you expected result.
QUESTION
I use the XML as config file, and want to deserialize the file as a record like this:
...ANSWER
Answered 2021-Aug-25 at 05:27kbmMW's XML marshaller/unmarshaller supports both records and objects, so it should be able to handle your case.
You can try out kbmMW Community Edition which is free
Example elements vs attributes:
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