When using a file name/line combination to set the breakpoint, you can specify any file in the program without having to specify a path to that file, as long as the file name is unambiguous.
If you would like to limit the size of the backtrace (for example, when you are debugging a case of runaway recursion that blows out the stack and generates a very long backtrace), you can use the --count or -c option to specify the number of frames to print, starting with the most recent one.
You can adjust the type (long) to appropriately print the types that correspond to the array values, and adjust the size (6) to print more or fewer of the elements.
{{< warning title=”Future breakage possible!” >}}
While currently necessary for some debugging, you should know that name mangling might change in the future. Do not depend on this remaining static.
{{< /warning >}}
Method names get mangled by the compiler. The general format for the mangling is:
package
: the name of the package (for methods brought in through use expressions)
type
: the name of the type to which the method belongs
typearg1, typearg2 …
: the type parameters of the method (for methods that use type parameters)
rcap
: the reference capability of the method
methodname
: the name of the method
mangling
: a mangling string where each character indicates the type of each method parameter and the method’s return type according to the following conversion:
Type
Mangling
object
o
Bool
b
I8
c
I16
s
I32
i
I64
w
I128
q
ILong
l
ISize
z
U8
C
U16
S
U32
I
U64
W
U128
Q
ULong
L
USize
Z
F32
f
F64
d
These rules can be used to determine the name of function in order to specify that you would like to place a breakpoint on it. You can also type b <characters><tab> to see a tab-complete list of all the available functions that start with <characters>. To set a breakpoint on a function:
Each behavior has an associated send method (__send) that is used to send a message to the receiver to trigger that behavior. Each actor has a dispatch method (_Dispatch) that translates messages into calls to the appropriate functions in the receiver.