Miscellaneous

Errors

bail

Triggers an error.

ensure

Triggers an error when an assertion fails.

todo

Triggers an error with a "not yet implemented" message.

dbg

Prints its arguments, formatted for debugging.

try

Captures errors with a brief error message.

try-verbose

Captures errors with a verbose error message.

file-location

Returns a string describing the current file and line number.

stack-trace

Returns a string describing the current call-stack.

Equality

eq?

Returns #t if all of its arguments are equal to one another.

same?

Returns #t if all of its arguments share the same identity.

==any?

Returns #t if its first argument is numerically equal to any other argument.

eq-any?

Returns #t if its first argument is equal to any other argument.

same-any?

Returns #t if its first argument has the same identity as any other argument.

Cloning

clone

Returns a shallow copy of its argument.

deep-clone

Returns a deep, recursive copy of its argument.

Freezing

freeze!

Freezes a collection so that it can no longer be mutated.

deep-freeze!

Recursively freezes a tree of collections.

RData

free!

Deallocates an RData.

freed?

Returns #t if an RData has been freed.

Time

time

Generates a high-precision timestamp.

sleep

Sleeps the current thread for the given number of seconds.

unix-time

Returns the number of seconds elapsed since the UNIX epoch, as a string.

Garbage Collection

gc

Runs the garbage collector.

gc-value

Retrieves information about the garbage collector.

gc-value=

Tunes the garbage collector.

Objects and Classes