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/#
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
#/
;struct Vector (raw type T) {
uint
length,
dataSize,
~T data
}
/; method Vector
# Constructors
/; Vector
;self.length = 0
;self.dataSize = 1
;alloc self.data, size T
;/
/; Vector (T first)
;self.length = 1
;self.dataSize = 1
;alloc self.data, size T
;self.data{0} = first
;/
/; Vector ({}T arr)
;self.length = len arr
;self.data_size = 1
/; loop (self.dataSize < self.length)
;self.dataSize *= 2
;/
;alloc self.data, self.dataSize * size T
/; loop (uint i = 0; i < self.length) [i++]
;self.data{i} = arr{i}
;/
;/
# Operator overloads
/; operator {} (uint index) [~T]
/; if (index !< 0 && index < self.length)
;return self.data + index
;/
# Probably not what errors will look like long term, but
# serves as a proof of concept for now
;throw Error("Bad index", ERROR_CODE.OUT_OF_RANGE)
;/
/; operator len [uint]
;return self.length
;/
/; operator == (Vector(T) vec) [bool]
/; if (vec.length != self.length)
;return false
;/
/; loop (uint i = 0; i < self.length) [i++]
/; if (vec.data{i} != self.data{i})
;return false
;/
;/
;return true
;/
/; operator delete
;delete self.data
;/
# Internal
/; _grow
;realloc self.data, self.dataSize * 2 * size T
;self.dataSize *= 2
;/
/; _shrink
;realloc self.data, self.dataSize / 2 * size T
;self.dataSize /= 2
;/
# Basic operations
/; add (T item, uint index)
/; if (index < 0 || index > self.length)
;throw Error("Bad index", ERROR_CODE.OUT_OF_RANGE)
;/
# If it checks out then we check if we should grow
/; if (self.length >= self.dataSize)
# Might throw a memory allocation error
;self._grow()
;/
/; loop (uint i = self.length; i > index) [i--]
;self.data{i} = self.data{i - 1}
;/
;self{index} = replace
;self.length += 1
;/
/; remove (uint index) [T]
;T out = self{index}
/; loop (uint i = index; i < self.length - 1) [i++]
;self.data{i} = self.data{i + 1}
;/
self.length -= 1
/; if (self.length < self.dataSize / 4)
;self._shrink()
;/
;return out
;/
/; remove_item (T item) [bool]
;bool removed = false
/; loop (uint i = 0; i < self.length) [i++]
/; if (!removed && self.data{i} == item)
;removed = true
;; else if (removed)
;self.data{i - 1} = self.data{i}
;/
;/
/; if (removed)
;self.length -= 1
/; if (self.length < self.dataSize / 4)
;self._shrink()
;/
;/
;return removed
;/
/; remove_all (T item) [uint]
;uint removed = 0
/; loop (uint i = 0; i < self.length - removed) [i++]
/; loop (self.data{i + removed} == item && removed < self.length)
;removed += 1
;; if (removed != 0 && removed < self.length)
;self.data{i} = self.data{i + removed}
;/
;/
;self.length -= removed
/; loop (self.length < self.dataSize / 4)
;self._shrink()
;/
;return removed
;/
/; push (T item) [uint]
;self.add(item, self.length)
;return self.length - 1
;/
/; pop [T]
;return self.remove(self.length - 1)
;/
;/
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