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module builtin
struct array {
arr JS.Array
pub:
len int
cap int
}
#function flatIntoArray(target, source, sourceLength, targetIndex, depth) {
#"use strict";
#
#for (var sourceIndex = 0; sourceIndex < sourceLength; ++sourceIndex) {
#if (sourceIndex in source) {
#var element = source[sourceIndex];
#if (depth > 0 && Array.isArray(element))
#targetIndex = flatIntoArray(target, element, element.length, targetIndex, depth - 1);
#else {
#target[targetIndex] = element;
#++targetIndex;
#}
#}
#}
#return targetIndex;
#}
#function flatArray(target,depth) {
#var array = target
#var length = array.length;
#var depthNum = 1;
#
#if (depth !== undefined)
#depthNum = +depth
#
#var result = []
#
#flatIntoArray(result, array, length, 0, depthNum);
#return result;
#}
[unsafe]
pub fn (a array) repeat_to_depth(count int, depth int) array {
if count < 0 {
panic('array.repeat: count is negative: $count')
}
mut arr := empty_array()
#let tmp = new Array(a.arr.length * +count);
#tmp.fill(a.arr);
#
#arr.arr = flatArray(tmp,depth+1);
return arr
}
// last returns the last element of the array.
pub fn (a array) last() voidptr {
mut res := voidptr(0)
#res = a.arr[a.len-1];
return res
}
fn (a array) get(ix int) voidptr {
mut result := voidptr(0)
#result = a.arr[ix]
return result
}
pub fn (a array) repeat(count int) array {
unsafe {
return a.repeat_to_depth(count, 0)
}
}
fn empty_array() array {
mut arr := array{}
#arr = new array([])
return arr
}
fn (a &array) set_len(i int) {
#a.arr.length=i
}
pub fn (mut a array) sort_with_compare(compare voidptr) {
#a.arr.sort(compare)
}
#function $sortComparator(a, b)
#{
#"use strict";
#a = a.$toJS();
#b = b.$toJS();
#
#if (a > b) return 1;
#if (a < b) return -1;
#return 0;
#
#
#}
pub fn (mut a array) sort() {
#a.arr.sort($sortComparator)
}
pub fn (a array) index(v string) int {
for i in 0 .. a.len {
#if (a.arr[i].toString() == v.toString())
{
return i
}
}
return -1
}
pub fn (a array) slice(start int, end int) array {
mut result := a
#result = new array(a.arr.slice(start,end))
return result
}
pub fn (mut a array) insert(i int, val voidptr) {
#a.arr.splice(i,0,val)
}
pub fn (mut a array) insert_many(i int, val voidptr, size int) {
#a.arr.splice(i,0,...val.slice(0,+size))
}
pub fn (mut a array) join(separator string) string {
mut res := ''
#res = new builtin.string(a.arr.join(separator +''));
return res
}
fn (a array) push(val voidptr) {
#a.arr.push(val)
}
pub fn (a array) str() string {
mut res := ''
#res = new builtin.string(a + '')
return res
}
#array.prototype[Symbol.iterator] = function () { return this.arr[Symbol.iterator](); }
#array.prototype.entries = function () { return this.arr.entries(); }
#array.prototype.map = function(callback) { return new builtin.array(this.arr.map(callback)); }
#array.prototype.filter = function(callback) { return new array(this.arr.filter( function (it) { return (+callback(it)) != 0; } )); }
#Object.defineProperty(array.prototype,'cap',{ get: function () { return this.len; } })
// delete deletes array element at index `i`.
pub fn (mut a array) delete(i int) {
a.delete_many(i, 1)
}
// delete_many deletes `size` elements beginning with index `i`
pub fn (mut a array) delete_many(i int, size int) {
#a.arr.splice(i.valueOf(),size.valueOf())
}
// prepend prepends one value to the array.
pub fn (mut a array) prepend(val voidptr) {
a.insert(0, val)
}
// prepend_many prepends another array to this array.
[unsafe]
pub fn (mut a array) prepend_many(val voidptr, size int) {
unsafe { a.insert_many(0, val, size) }
}
pub fn (a array) reverse() array {
mut res := array{}
#res.arr = Array.from(a.arr).reverse()
return res
}
#array.prototype.$includes = function (elem) { return this.arr.find(function(e) { return vEq(elem,e); }) !== undefined;}
// reduce executes a given reducer function on each element of the array,
// resulting in a single output value.
pub fn (a array) reduce(iter fn (int, int) int, accum_start int) int {
mut accum_ := accum_start
#for (let i of a) {
#accum_ = iter(accum_, a.arr[i])
#}
return accum_
}
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