Add the native function module and transform the list library to use it.

This commit is contained in:
evancz 2013-02-27 09:46:25 -08:00
parent c5519e3046
commit 9eddb7a3bd
2 changed files with 165 additions and 75 deletions

104
core/Native/Function.js Normal file
View file

@ -0,0 +1,104 @@
/*
module Native.Function where
*/
function F2(fun) {
function wrapper(a) { return function(b) { return fun(a,b) } }
wrapper.arity = 2;
wrapper.func = fun;
return wrapper;
}
function F3(fun) {
function wrapper(a) {
return function(b) { return function(c) { return fun(a,b,c) }}
}
wrapper.arity = 3;
wrapper.func = fun;
return wrapper;
}
function F4(fun) {
function wrapper(a) { return function(b) { return function(c) {
return function(d) { return fun(a,b,c,d) }}}
}
wrapper.arity = 4;
wrapper.func = fun;
return wrapper;
}
function F5(fun) {
function wrapper(a) { return function(b) { return function(c) {
return function(d) { return function(e) { return fun(a,b,c,d,e) }}}}
}
wrapper.arity = 5;
wrapper.func = fun;
return wrapper;
}
function F6(fun) {
function wrapper(a) { return function(b) { return function(c) {
return function(d) { return function(e) { return function(f) {
return fun(a,b,c,d,e,f) }}}}}
}
wrapper.arity = 6;
wrapper.func = fun;
return wrapper;
}
function F7(fun) {
function wrapper(a) { return function(b) { return function(c) {
return function(d) { return function(e) { return function(f) {
return function(g) { return fun(a,b,c,d,e,f,g) }}}}}}
}
wrapper.arity = 7;
wrapper.func = fun;
return wrapper;
}
function F8(fun) {
function wrapper(a) { return function(b) { return function(c) {
return function(d) { return function(e) { return function(f) {
return function(g) { return function(h) {return fun(a,b,c,d,e,f,g,h)}}}}}}}
}
wrapper.arity = 8;
wrapper.func = fun;
return wrapper;
}
function F9(fun) {
function wrapper(a) { return function(b) { return function(c) {
return function(d) { return function(e) { return function(f) {
return function(g) { return function(h) { return function(i) {
return fun(a,b,c,d,e,f,g,h,i) }}}}}}}}
}
wrapper.arity = 9;
wrapper.func = fun;
return wrapper;
}
function A2(fun,a,b) {
return fun.arity === 2 ? fun.func(a,b) : fun(a)(b);
}
function A3(fun,a,b,c) {
return fun.arity === 3 ? fun.func(a,b,c) : fun(a)(b)(c);
}
function A4(fun,a,b,c,d) {
return fun.arity === 4 ? fun.func(a,b,c,d) : fun(a)(b)(c)(d);
}
function A5(fun,a,b,c,d,e) {
return fun.arity === 5 ? fun.func(a,b,c,d,e) : fun(a)(b)(c)(d)(e);
}
function A6(fun,a,b,c,d,e,f) {
return fun.arity === 6 ? fun.func(a,b,c,d,e,f) : fun(a)(b)(c)(d)(e)(f);
}
function A7(fun,a,b,c,d,e,f,g) {
return fun.arity === 7 ? fun.func(a,b,c,d,e,f,g) : fun(a)(b)(c)(d)(e)(f)(g);
}
function A8(fun,a,b,c,d,e,f,g,h) {
return fun.arity === 8 ? fun.func(a,b,c,d,e,f,g,h) : fun(a)(b)(c)(d)(e)(f)(g)(h);
}
function A9(fun,a,b,c,d,e,f,g,h,i) {
return fun.arity === 9 ? fun.func(a,b,c,d,e,f,g,h,i)
: fun(a)(b)(c)(d)(e)(f)(g)(h)(i);
}

View file

@ -1,5 +1,7 @@
/**
module Native.List where
import Native.Function
**/
(function() {
@ -65,79 +67,68 @@
return out;
}
function map(f) { return function(xs) {
function map(f, xs) {
var arr = [];
while (xs.ctor === "Cons") {
arr.push(f(xs._0));
xs = xs._1;
}
return fromArray(arr);
}
}
function foldl(f) { return function(b) { return function(xs) {
var acc = b;
while (xs.ctor === "Cons") {
acc = f(xs._0)(acc);
xs = xs._1;
}
return acc;
function foldl(f, b, xs) {
var acc = b;
while (xs.ctor === "Cons") {
acc = f(xs._0)(acc);
xs = xs._1;
}
}
return acc;
}
function foldr(f) { return function(b) { return function(xs) {
var arr = toArray(xs);
var acc = b;
for (var i = arr.length; i--; ) {
acc = f(arr[i])(acc);
}
return acc;
function foldr(f, b, xs) {
var arr = toArray(xs);
var acc = b;
for (var i = arr.length; i--; ) {
acc = f(arr[i])(acc);
}
}
return acc;
}
function foldl1(f) { return function(xs) {
xs.ctor === "Nil" ? throwError('foldl1') : return foldl(f)(xs._0)(xs._1);
}
function foldl1(f, xs) {
xs.ctor === "Nil" ? throwError('foldl1') : return foldl(f, xs._0, xs._1);
}
function foldr1(f) { return function(xs) {
function foldr1(f, xs) {
if (xs.ctor === "Nil") { throwError('foldr1'); }
var arr = toArray(xs);
var acc = arr.pop();
for (var i = arr.length; i--; ) {
acc = f(arr[i])(acc);
acc = A2(f, arr[i], acc);
}
return acc;
}
}
function scanl(f) { return function(b) { return function(xs) {
var arr = toArray(xs);
arr.unshift(b);
var len = arr.length;
for (var i = 1; i < len; ++i) {
arr[i] = f(arr[i])(arr[i-1]);
}
return fromArray(arr);
function scanl(f, b, xs) {
var arr = toArray(xs);
arr.unshift(b);
var len = arr.length;
for (var i = 1; i < len; ++i) {
arr[i] = A2(f, arr[i], arr[i-1]);
}
}
return fromArray(arr);
}
function scanl1(f) { return function(xs) {
xs.ctor === "Nil" ? throwError('scanl1') : return scanl(f)(xs._0)(xs._1);
}
function scanl1(f, xs) {
xs.ctor === "Nil" ? throwError('scanl1') : return scanl(f, xs._0, xs._1);
}
function filter(pred) { return function(xs) {
function filter(pred, xs) {
var arr = [];
while (xs.ctor === "Cons") {
if (pred(xs._0)) { arr.push(xs._0); }
xs = xs._1;
}
return fromArray(arr);
}
}
function length(xs) {
@ -151,52 +142,47 @@
function reverse(xs) { return fromArray(toArray(xs).reverse()); }
function all(pred) { return function(xs) {
function all(pred, xs) {
while (xs.ctor === "Cons") {
if (!pred(xs._0)) return false;
xs = xs._1;
}
return true;
}
}
function any(pred) { return function(xs) {
function any(pred, xs) {
while (xs.ctor === "Cons") {
if (pred(xs._0)) return true;
xs = xs._1;
}
return false;
}
}
function zipWith(f) { return function(xs) { return function(ys) {
var arr = [];
while (xs.ctor === "Cons" && ys.ctor === "Cons") {
arr.push(f(xs._0)(ys._0));
xs = xs._1;
ys = ys._1;
}
return fromArray(arr);
}
}
}
function zip(xs) { return function(ys) {
function zipWith(f, xs, ys) {
var arr = [];
while (xs.ctor === "Cons" && ys.ctor === "Cons") {
arr.push(["Tuple2",xs._0,ys._0]);
arr.push(A2(f, xs._0, ys._0));
xs = xs._1;
ys = ys._1;
}
return fromArray(arr);
}
function zip(xs, ys) {
var arr = [];
while (xs.ctor === "Cons" && ys.ctor === "Cons") {
arr.push({ ctor:'Tuple2', _0:xs._0, _1:ys._0 });
xs = xs._1;
ys = ys._1;
}
return fromArray(arr);
}
}
function sort(xs) {
return fromArray(toArray(xs).sort(function(a,b) { return a - b}));
}
function take(n) { return function(xs) {
function take(n, xs) {
var arr = [];
while (xs.ctor === "Cons" && n > 0) {
arr.push(xs._0);
@ -204,16 +190,14 @@
--n;
}
return fromArray(arr);
}
}
function drop(n) { return function(xs) {
function drop(n, xs) {
while (xs.ctor === "Cons" && n > 0) {
xs = xs._1;
--n;
}
return xs;
}
}
Elm.Native.List = {
@ -228,23 +212,25 @@
tail:tail,
last:last,
map:map,
foldl:foldl,
foldr:foldr,
map:F2(map),
foldl:F3(foldl),
foldr:F3(foldr),
foldl1:foldl1,
foldr1:foldr1,
scanl:scanl,
scanl1:scanl1,
filter:filter,
foldl1:F2(foldl1),
foldr1:F2(foldr1),
scanl:F3(scanl),
scanl1:F2(scanl1),
filter:F2(filter),
length:length,
reverse:reverse,
all:all,
any:any,
zipWith:zipWith,
zip:zip,
all:F2(all),
any:F2(any),
zipWith:F3(zipWith),
zip:F2(zip),
sort:sort,
take:take,
drop:drop};
take:F2(take),
drop:F2(drop)
};
}());