dawcs.flow — dawcs/flow 0.1.0

*exception-base-class* clj

Base exception class which will be caught by call. Dynamic, defaults to Throwable

*ignored-exceptions* clj

Exception classes which will be ignored by call. Dynamic, defaults to empty set

add-ignored-exceptions! clj

(add-ignored-exceptions! ex-class-set)

Adds given set of classes to *ignored-exceptions*

call clj

(call f & args)

Wraps given function call with supplied args in try/catch block. When caught an exception which class is *exception-base-class*(defaults to Throwable) or a subclass of it, returns it, otherwise throws it. Returns function call result if no exception has caught

catch-from! clj

(catch-from! ex-class)

Sets exception-base-class to specified class

catching clj macro

(catching exception-base-class & body)

Executes body with *exception-base-class* bound to given class

else clj

(else handler value)

If value is a fail?, calls handler on it, otherwise returns value

fail clj

(fail msg)

(fail msg data)

(fail msg data cause)

Creates new ex-info instance with given msg, data(optional) and cause(optional)

fail? clj

(fail? value)

Checks if value is Throwable

flet clj macro

(flet bindings & body)

Enables common Clojure let syntax using bindings for processing with flow

ignore-exceptions! clj

(ignore-exceptions! ex-class-set)

Sets *ignored-exceptions* to given set

ignored? clj

(ignored? ex-class)

Checks if exception class should be ignored

ignoring clj macro

(ignoring ignored-exceptions & body)

Executes body with *ignored-exceptions* bound to given value

then clj

(then handler value)

If value is not a fail?, applies f to it wrapped to call, otherwise returns value

thru clj

(thru handler value)

If value is a fail?, calls handler on it (for side effects). Returns value