gstring | GC Free string for C | Game Engine library

You can create overloaded methods or you can use generics; something as below:

targ is of type Gstring, rather than a java String. GString retains the information for how to build itself from the interpolated form.

Because targ isn't a String, it will never pass the equality check required by List.contains, where the List contrains a String.

It's because it thinks name(name) is a call to your variable called name which is a string in this case...

You could call your variables names that are not in your json structure (ie: change the name string to be called nameValue or similar)

Or you could use the map form of JsonBuilder:

This should work in plain Groovy:

You would have to use:

cursor behaves like get-in, while the code above expects it to behave like select-keys. While you could make cursor behave like your want by passing in a function as the first argument (see the second example in it's documentation) you don't need to write the cursor, so your better off using track. Something like (track #(select-keys @wndcomp_state [:text :width :height])) (untested)

That said, in your example, even track is overkill, you really don't need a new reaction. You could just pass in the original atom to the child component and everything would would perfectly. The downside of doing this is that if your example is simplified and you have other properties that change more frequently than :width and :height you'd rerender the child necessarily every time those changed.

Even that problem can be solved without a new reaction however. Just pass in the plain map. So instead of [svgrender (track #(select-keys @wndcomp_state [:text :width :height]))] you simply have [svgrender (select-keys @wndcomp_state [:text :width :height])] (note: I'm also using square brackets instead of parens, see here). Using this approach when wndcomp_state changes the windowdim_comp component will be re-rendered, which causes it to call the svgrender component with the text, width, and height from wndcomp_state. If these have changed, it's like calling a React component with new props, it'll be rerendered. If they haven't your calling svgrender with the same arguments it was originally rendered with. Reagent won't rerender it in that scenario (using the square brackets. With parens it'll always be rerendered).

Same effect, but less work for Reagent/React tracking dependencies.

It means nothing (or what you make of it). There are two places, you are addressing, but they have nothing to do with each other.

The docs just mention this as "you can use slashy strings to write things, that would give you an error with a GString" - the same is true for just using '-Strings.

E.g.

I was able to sort of reproduce this using the following example:

Based on your cmake output, I'd guess that you're using a version of FindGStreamer.cmake cribbed from WebKit. If that's the case, the variable you want to use is GSTREAMER_MPEGTS_INCLUDE_DIRS. Note the lack of a hyphen in the variable name.

If that's not the case, use a simple message() statement before the use of a variable to show you its value during the cmake step.

In your CMakeLists.txt: