3055

1 files changed, 40 insertions, 0 deletions

diff --git a/063array.mu b/063array.mu
new file mode 100644
index 00000000..8272a865
--- /dev/null
+++ b/063array.mu
@@ -0,0 +1,40 @@
+scenario array-from-args [
+  run [
+    local-scope
+    x:address:array:character <- new-array 0, 1, 2
+    10:array:character/raw <- copy *x
+  ]
+  memory-should-contain [
+    10 <- 3  # array length
+    11 <- 0
+    12 <- 1
+    13 <- 2
+  ]
+]
+
+# create an array out of a list of scalar args
+def new-array -> result:address:array:character [
+  local-scope
+  capacity:number <- copy 0
+  {
+    # while read curr-value
+    curr-value:character, exists?:boolean <- next-ingredient
+    break-unless exists?
+    capacity <- add capacity, 1
+    loop
+  }
+  result <- new character:type, capacity
+  rewind-ingredients
+  i:number <- copy 0
+  {
+    # while read curr-value
+    done?:boolean <- greater-or-equal i, capacity
+    break-if done?
+    curr-value:character, exists?:boolean <- next-ingredient
+    assert exists?, [error in rewinding ingredients to new-array]
+    *result <- put-index *result, i, curr-value
+    i <- add i, 1
+    loop
+  }
+  return result
+]