array indexing, nested array literals

examples/arrays.zr

@@ -1,10 +1,5 @@
 func main[] : I64
-    let xs: Array = [5849, 3869, 2859]
-    Array.push(xs, 5242)
-    Array.push(xs, 6533)
-    Array.push(xs, 4574)
-
-    for i in 0..Array.size(xs)
-        xs
-        |> Array.nth(i)
-        |> print_i64()
+    let xs: Array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
+    for x in 0..3
+        for y in 0..3
+            print_i64(xs[y][x])

examples/quicksort.zr

@@ -8,16 +8,16 @@ func do_quicksort[arr: Array, low: I64, high: I64] : I64
         do_quicksort(arr, i + 1, high)
 
 func partition[arr: Array, low: I64, high: I64] : I64
-    let pivot: I64 = Array.nth(arr, high)
+    let pivot: I64 = arr[high]
     let i: I64 = low - 1
     for j in (low)..high
-        if Array.nth(arr, j) <= pivot
+        if arr[j] <= pivot
             i = i + 1
-            let temp: I64 = Array.nth(arr, i)
-            Array.set(arr, i, Array.nth(arr, j))
+            let temp: I64 = arr[i]
+            Array.set(arr, i, arr[j])
             Array.set(arr, j, temp)
-    let temp: I64 = Array.nth(arr, i + 1)
-    Array.set(arr, i + 1, Array.nth(arr, high))
+    let temp: I64 = arr[i + 1]
+    Array.set(arr, i + 1, arr[high])
     Array.set(arr, high, temp)
     return i + 1
 
@@ -25,10 +25,10 @@ func main[] : I64
     let arr: Array = [340, 252, 352, 117, 650, 652, 322, 175, 714, 268, 725, 664]
 
     for i in 0..Array.size(arr)
-        print_i64(Array.nth(arr, i))
+        print_i64(arr[i])
     print("------------")
 
     quicksort(arr)
 
     for i in 0..Array.size(arr)
-        print_i64(Array.nth(arr, i))
+        print_i64(arr[i])

examples/rule110.zr

@@ -1,14 +1,15 @@
 func rule110_step[state: Array] : Array
     let new_state: Array = []
+    let state_len: I64 = Array.size(state)
 
-    for i in 0..Array.size(state)
+    for i in 0..state_len
         let left: Bool = false
         if i - 1 >= 0
-            left = Array.nth(state, i-1)
-        let center: Bool = Array.nth(state, i)
+            left = state[i-1]
+        let center: Bool = state[i]
         let right: Bool = false
-        if i + 1 < Array.size(state)
-            right = Array.nth(state, i+1)
+        if i + 1 < state_len
+            right = state[i+1]
 
         Array.push(new_state, !((!left && !center && !right) || (left && !center && !right) || (left && center && right)))
 
@@ -17,7 +18,7 @@ func rule110_step[state: Array] : Array
 func to_str[state: Array]: String
     let out: String = malloc(Array.size(state))
     for i in 0..Array.size(state)
-        if Array.nth(state, i)
+        if state[i]
             String.set(out, i, '#')
         else
             String.set(out, i, ' ')