while
mid := (lo + hi) / 2
if mid == target:
- use Found
+ use .Found
if mid < target:
lo = mid
else
hi = mid
if hi - lo < 1:
lo = mid
- use GiveUp
+ use .GiveUp
use True
do pass
- case Found:
+ case .Found:
print "Yay, I found", target
- case GiveUp:
+ case .GiveUp:
print "Closest I found was", lo
###### output: sayhello,55,33,hello,True
double 1 is 2
double -2 is -4
+## References
+
+A simple linked list example
+
+###### test list
+ oceani_tests += "linked_list,one,two,three,four"
+
+###### test: linked_list
+
+ struct node
+ next: @node
+ this: string
+
+ func insert(list:@node; new:string):@node
+ p:=list
+ prev := @nil
+ while ?p and then p.this < new:
+ prev = p
+ p = p.next
+ if ?prev:
+ prev.next = @new()
+ prev.next.next = p
+ prev.next.this = new
+ else
+ list = @new()
+ list.next = p
+ list.this = new
+ use list
+
+ func printlist(list:@node)
+ while ?list:
+ print list@.this
+ list = list@.next
+
+ func freelist(list:@node)
+ if list != @nil:
+ freelist(list.next)
+ @free = list
+
+ func main(argv:[ac::]string)
+ list := insert(@nil, "@start")
+ list = insert(list, "~end")
+ for i:=1; then i=i+1; while i < ac:
+ list = insert(list, argv[i])
+ list = insert(list, "Hello!")
+ printlist(list)
+ freelist(list)
+
+###### output: linked_list,one,two,three,four
+ @start
+ Hello!
+ four
+ one
+ three
+ two
+ ~end
+
## Test code with syntax errors
Syntax errors aren't handled well yet - the result is almost always a
b = b + 1
if 3 * 4 and not True: print "Weird"
+ d:number = .fred
+ (d + b) = 12
###### output: type_err1
.tmp.code:3:25: error: expected string found number
.tmp.code:3:28: error: expected string found number
.tmp.code:6:8: error: Cannot assign to a constant: b
.tmp.code:5:8: info: name was defined as a constant here
- .tmp.code:6:8: error: Cannot assign to a constant: b
- .tmp.code:5:8: info: name was defined as a constant here
.tmp.code:8:11: error: Arithmetic returns number but Boolean expected
+ .tmp.code:9:20: error: expected number found label
+ .tmp.code:9:8: info: variable 'd' was set as number here.
+ .tmp.code:10:8: error: cannot assign to an rval
oceani: type error in program - not running.
###### test: type_err2
.tmp.code:24:8: error: cannot assign value of type [5]number
.tmp.code:25:13: error: expected [5]number but variable 'a3' is [10]number
.tmp.code:23:36: info: this is where 'a3' was set to [10]number
+ .tmp.code:23:8: info: variable 'a1' was set as [5]number here.
.tmp.code:25:8: error: cannot assign value of type [5]number
.tmp.code:26:13: error: expected [5]number but variable 'a4' is [5]string
.tmp.code:23:51: info: this is where 'a4' was set to [5]string
+ .tmp.code:23:8: info: variable 'a1' was set as [5]number here.
.tmp.code:26:8: error: cannot assign value of type [5]number
.tmp.code:27:16: error: expected number found string
.tmp.code:28:16: error: expected string found Boolean
.tmp.code:29:12: error: have number but need string
.tmp.code:7:8: info: variable 'c' was set as string here.
.tmp.code:32:8: error: variable used but not declared: foo
- .tmp.code:32:8: error: field reference attempted on none, not a struct
+ .tmp.code:32:8: error: field reference on none is not supported
.tmp.code:32:16: error: expected none found number
- .tmp.code:33:14: error: field reference attempted on string, not a struct
+ .tmp.code:33:14: error: field reference on string is not supported
.tmp.code:34:14: error: cannot find requested field in foo
.tmp.code:35:17: error: have string but need number
- .tmp.code:38:29: error: expected number (labels not permitted) found Boolean
+ .tmp.code:38:29: error: expected number found Boolean
oceani: type error in program - not running.
###### test: type_err4
.tmp.code:9:5: error: function 'test1' redeclared
.tmp.code:2:5: info: this is where 'test1' was first declared
+Test for errors with references
+
+###### test list
+ oceani_failing_tests += ref_err1 ref_err2
+
+###### test: ref_err1
+ func main()
+ ref:@number
+ @foo = ref
+ ref = @old()
+ if ref == @null:
+ print "null"
+
+###### output: ref_err1
+ .tmp.code:4:9: error: only "@free" makes sense here: foo
+ .tmp.code:5:15: error: Only reference function is "@new()": old
+ .tmp.code:6:19: error: Only reference value is "@nil": null
+
+###### test: ref_err2
+ func main()
+ ref:@number
+ ref2:@string
+ num:number = @new()
+ print num@
+ if num == @nil or ref == ref2 or ref == 2 or ref.foo:
+ @free = num
+
+###### output: ref_err2
+ .tmp.code:5:22: error: @new() can only be used with references, not number
+ .tmp.code:5:8: info: variable 'num' was set as number here.
+ .tmp.code:6:14: error: Cannot dereference number
+ .tmp.code:7:19: error: @nil can only be used with reference, not number
+ .tmp.code:7:33: error: expected @number but variable 'ref2' is @string
+ .tmp.code:4:8: info: this is where 'ref2' was set to @string
+ .tmp.code:7:48: error: expected @number found number
+ .tmp.code:7:53: error: field reference on number is not supported
+ .tmp.code:7:56: error: have none but need Boolean
+ .tmp.code:8:17: error: @free can only be assigned a reference, not number
+ .tmp.code:8:17: error: @free can only be assigned a reference, not number
+ oceani: type error in program - not running.
+
## Test erroneous command line args
To improve coverage, we want to test correct handling of strange command
code / ocean / blobdiff