Function do_with_in::genericDefaultHandlers

source ·

pub fn genericDefaultHandlers<'a, T>(
) -> HashMap<String, (Box<&'a (dyn Fn(Configuration<T>, Variables<'_, T>, Option<TokenStream>, TokenStream) -> Result<(Variables<'_, T>, TokenStream), (Variables<'_, T>, TokenStream)> + 'static)>, Option<TokenStream>)>where
    T: 'static + StartMarker + Clone,

Expand description

This function generates the default handler set.

Currently, the actually useful handlers consist of:

Invoke as	Defined by	Note
if	ifHandler	Use as `$(if test { true branch } { false branch })`. The test will often be either a variable that has been set elsewhere or a `$(logic ...)` block.
let	letHandler	Internally, a wrapper around assignmentInternalHandler; do not interpolate on definition or use
var	varHandler	Internally, a wrapper around assignmentInternalHandler; interpolate on definition and on use
concat	concatHandler
naiveStringifier	naiveStringifierHandler
string_to_ident	string_to_identHandler
arithmetic	arithmeticHandler	You have to specify the type of the number eg i8, usize, f64
logic	logicHandler	Sublanguage: nesting with parenthesis; logic ops ⌜&⌝, ⌜\|⌝, ⌜^⌝, ⌜=⌝, unary ⌜!⌝, ⌜true⌝, ⌜false⌝; numeric comparisons with numbers ⌜>⌝, ⌜>=⌝, ⌜=⌝, ⌜<=⌝, ⌜<⌝, ⌜!=⌝
mk	mkHandler	A simple way to define new handlers at the use site
quote	quote	In the lisp sense; renders the argument inert
unquote	unquote	In the lisp sense; renders the argument ert
run	run
array	arrayHandler	This handler has a bunch of subcommands and options; it is where most of the functionality for dealing with the representation we use of arrays is.
import	importHandler	Basic file inclusion; path must be specified by quoted segments; special unquoted identier Base is used for the crate root; errors in included file will point at import statement
withSigil	withSigilHandler
marker	markerHandler	This handler is for embedding data in one invocation of do_with_in! in a way that can be used in other invocations.
runMarkers	runMarkersHandler	This handler loads data into the environment from other invocations of do_with_in!.