2016-04-28 11:17:59 +03:00
|
|
|
- I've found a potential bug in their substring function:
|
|
|
|
https://github.com/ccrma/chuck/issues/55
|
2016-05-12 11:01:09 +03:00
|
|
|
- later I've found one in their regex replace function, too:
|
|
|
|
https://github.com/ccrma/chuck/issues/60
|
|
|
|
- this suggests there hasn't been much testing done on things
|
|
|
|
unrelated to audio which is not that unexpected in an audio
|
|
|
|
programming language, but still...
|
2016-04-28 11:17:59 +03:00
|
|
|
- the manual isn't up to date, so you need to look at `VERSIONS` and
|
|
|
|
the examples instead, sometimes the sources, too
|
|
|
|
- the manual only speaks of the debug syntax for printing
|
|
|
|
(`<<<foo>>>;` which goes to stderr), I've found a `chout` object you
|
|
|
|
can send strings to for outputting to stdout
|
|
|
|
- quitting is done via `C-c` only
|
|
|
|
- you'll want to use `--silent` to disable audio errors/processing,
|
|
|
|
but then the process will use 100% CPU and ignore any waiting
|
|
|
|
- stdin handling is terrible:
|
|
|
|
- the manual shows a keyboard example with HID devices, but it
|
|
|
|
doesn't work on linux
|
|
|
|
- there's a "hacked" `ConsoleInput` class with only an example file
|
|
|
|
for it, it works for most of the part, but doesn't accept `C-d`
|
|
|
|
- the obvious alternative is printing a prompt manually, then
|
|
|
|
waiting for `KBHit` events and printing them, but that's rather
|
|
|
|
tedious as you'd have to convert the ascii numbers into chars
|
|
|
|
yourself and make a buffer-like thing
|
|
|
|
- I've also considered writing a thing sending OSC events per
|
|
|
|
keyboard hit and processing these in ChucK as they come in, but
|
|
|
|
that would most likely not work with the test harness ._.
|
|
|
|
- the OOP system is seriously weird
|
|
|
|
- influenced by C++ *and* java
|
|
|
|
- one public class per file
|
|
|
|
- to export functionality, you must use a public class (and static
|
|
|
|
functions/variables)
|
|
|
|
- if you use static variables, you can't assign values to them
|
|
|
|
directly, you'll have to do that after the class has been defined
|
2016-05-12 11:01:09 +03:00
|
|
|
- worse, you can't even declare anything that's not a primitive, so
|
|
|
|
if you want to declare a reference type, use the reference
|
|
|
|
operator instead...
|
2016-04-28 11:17:59 +03:00
|
|
|
- no interfaces
|
|
|
|
- no generics (copy/paste code for all types you need!)
|
|
|
|
- no unions (use Object, then cast to the correct type)
|
|
|
|
- there is no obvious way of casting to arrays of types
|
|
|
|
- no private (things are public by default, public keyword is used
|
|
|
|
to export code)
|
|
|
|
- no self-references in classes (so no trees, static "constructors"
|
|
|
|
work though)
|
|
|
|
- no meaningful way of working with null for primitive types (mutate
|
|
|
|
a reference and look at the return code instead)
|
|
|
|
- no boxed versions of primitive types
|
|
|
|
- no automatic boxing/unboxing
|
2016-08-06 01:34:18 +03:00
|
|
|
- no upcasting/downcasting
|
2016-04-28 11:17:59 +03:00
|
|
|
- No module system
|
|
|
|
- `Machine.add(file)` is the only mechanism available from code (no
|
|
|
|
read all file contents and eval), but if you use it, it defers
|
|
|
|
loading the files until the file it's used in, rendering it
|
|
|
|
useless
|
|
|
|
- Therefore the only way to make use of it is writing a file that
|
|
|
|
only consists of these instructions
|
|
|
|
- The only practical alternative is specifying all files you need
|
|
|
|
loaded in the right order when starting chuck
|
|
|
|
- That's why I wrote a runner script extracting `// @import file.ck`
|
|
|
|
lines (hello JS!) and running chuck with them
|
|
|
|
- No real exception system
|
|
|
|
- The VM is able to throw exceptions (out of bounds, nullpointer),
|
|
|
|
but you can't do anything about them and only get a hint what kind
|
|
|
|
of operation caused it (no stacktrace or anything)
|
|
|
|
- No user-definable exceptions, no mechanism to catch or throw them
|
|
|
|
(other than intentionally doing something illegal)
|
2016-04-29 21:40:11 +03:00
|
|
|
- This means that you should use C-style error checking by
|
|
|
|
converting the potentially erroneous functions into returning a
|
|
|
|
status code and mutating a reference passed to them as argument
|
|
|
|
which is highly weird in a otherwise Java-like language
|
|
|
|
- An alternative is defining an error object (which belongs to the
|
|
|
|
same supertype as the other legal return values) and checking its
|
|
|
|
type by inspecting the user-tracked type field
|
2016-04-30 21:12:07 +03:00
|
|
|
- No function pointers/functors/closures
|
|
|
|
- This is a bit unexpected as if you leave away the parentheses
|
|
|
|
holding the argument list and debug print a function, you'll see
|
|
|
|
it being recognized as a function, yet you can't store it anywhere
|
|
|
|
for passing it around
|
2016-05-12 11:01:09 +03:00
|
|
|
- This is not quite right as you can store it in an `Object`, just
|
|
|
|
not call it in any way or cast it to a function type
|
2016-04-30 21:12:07 +03:00
|
|
|
- So you get to implement functors and closures yourself...
|
|
|
|
- A functor is a class with a call method taking an argument list
|
|
|
|
and executing the code of the function you intend to pass around
|
|
|
|
- To use it, store an instance of its class somewhere, then use its
|
|
|
|
call method with an argument list
|
2016-05-12 11:01:09 +03:00
|
|
|
- Closures can be implemented with a data structure holding a
|
|
|
|
snapshot of the current environment, the parameter list and AST,
|
|
|
|
the last two being a way of representing an anonymous function.
|
2016-04-28 11:17:59 +03:00
|
|
|
- Other oddities
|
|
|
|
- strict distinction between assigning values and references with
|
|
|
|
two separate operators for them (`<<` for array append doesn't
|
|
|
|
seem to care though)
|
|
|
|
- strings are supposedly reference types, yet you can assign them
|
|
|
|
with the regular operator...
|
|
|
|
- `<<` on an `type[]` gives you a weird error as you need to use an
|
|
|
|
`type[0]` (and a `type[]` is merely a reference...)
|
2016-04-29 21:40:11 +03:00
|
|
|
- The compiler will find lots of mistakes for you, but cannot figure
|
|
|
|
out code branches not returning anything which means that return
|
|
|
|
type violations will blow up in your face unless there's a
|
|
|
|
reasonable default value (null for `Object` isn't, 0 for `int` and
|
|
|
|
"" for `string` is)
|
|
|
|
- If you abuse the type system too much, chances are you get a
|
|
|
|
segfault or assert instead of an exception...
|
2016-04-30 21:12:07 +03:00
|
|
|
- Debug print shows the object and its type if you pass one
|
|
|
|
argument, if you pass more than one, it prints the concatenation
|
|
|
|
of their representations instead, so it's a bit hard to make out
|
|
|
|
what is a debug print and what isn't
|
2016-08-06 01:34:18 +03:00
|
|
|
- there are no hash maps, just the possibility to use a string key
|
|
|
|
on an array for storing and fetching contents (like in PHP, eww)
|
|
|
|
and no way of retrieving keys/values or even iterating over these
|
|
|
|
- I think I've spotted a weird scoping bug that prefers a member
|
|
|
|
variable over a local variable after nesting scopes, therefore I
|
|
|
|
consider the language to not implement proper lexical scoping
|
|
|
|
- another proof of it is declaring variables in consequent if-blocks
|
|
|
|
as that gives you an error instead of being permitted as they
|
|
|
|
should be in different local scopes...
|