Let's say you want to implement TypeScript with macros:
function foo(str: string) {
return str.toUpperCase()
// ^
// want to provide completion here
}
So we define the function macro:
| defaults write -app Skim SKAutoReloadFileUpdate -boolean true |
| sed ' | |
| s/^>// | |
| t | |
| s/^ *$// | |
| t | |
| s/^/-- / | |
| ' in.lhs > out.hs |
| macro class { | |
| case $className { constructor $constParam $constBody $rest ... } => { | |
| function $className $constParam $constBody | |
| class $className { $rest ... } | |
| } | |
| case $className { private_function $pMethodName $pMethodParam $pMethodBody $rest ...} => { | |
| function $pMethodName $pMethodParam $pMethodBody | |
| class $className { $rest ... } |
| macro _match_cond { | |
| case $o ($field) => { | |
| (typeof $o.$field !== 'undefined') | |
| } | |
| case $o ($field $rest ...) => { | |
| _match_cond $o ($field) && _match_cond $o ($rest ...) | |
| } | |
| } | |
| macro _match_var { |
| macro _arms { | |
| case (default => $value:expr) => { | |
| else { | |
| return $value; | |
| } | |
| } | |
| case (case $cond:expr => $value:expr) => { | |
| if($cond) { | |
| return $value; | |
| } |
| macro forThing { | |
| case $val ($a:expr, $b:expr) => {(function($val){forEach.call($b, this)}).bind($a)} | |
| case $val ($a:expr) => {(function($val){forEach.call(val,this)}).bind($a)} | |
| } | |
| function makeMutationObserver(tag){ | |
| var queue= tag.queue, | |
| put= queue.put.bind(queue), | |
| mutationAddObserve= forThing val (put, val.getElementsByTagName(this.tag)), | |
| mutationObserver= forThing val (mutationAddObserve, val.addedNodes), | |
| mutationsObserver= forThing val (mutationObserver) |
Let's say you want to implement TypeScript with macros:
function foo(str: string) {
return str.toUpperCase()
// ^
// want to provide completion here
}
So we define the function macro:
| var random = function(seed) { /* ... */ } | |
| let m = macro { | |
| rule {()} => { | |
| var n = random(42); // ... | |
| } | |
| } |
| macro = { | |
| rule { > { $body ... } } => { function foo() { $body ...} } | |
| } | |
| => { return 42; } |
| let let = macro { | |
| rule { async $vars ... = $fname ... ($params ...); $rest ...} => { | |
| $fname ... ($params ..., function (err, $vars ...) { | |
| if (err) throw err; | |
| $rest ... | |
| }) | |
| } | |
| } | |
| var buffer = new Buffer(1024); |