zeroshade commented on a change in pull request #11514:
URL: https://github.com/apache/arrow/pull/11514#discussion_r744028562
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File path: go/arrow/compute/datumkind_string.go
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@@ -0,0 +1,29 @@
+// Code generated by "stringer -type=DatumKind -linecomment"; DO NOT EDIT.
+
+package compute
+
+import "strconv"
+
+func _() {
+ // An "invalid array index" compiler error signifies that the constant
values have changed.
+ // Re-run the stringer command to generate them again.
+ var x [1]struct{}
+ _ = x[KindNone-0]
+ _ = x[KindScalar-1]
+ _ = x[KindArray-2]
+ _ = x[KindChunked-3]
+ _ = x[KindRecord-4]
+ _ = x[KindTable-5]
+ _ = x[KindCollection-6]
+}
+
+const _DatumKind_name =
"nonescalararraychunked_arrayrecord_batchtablecollection"
+
+var _DatumKind_index = [...]uint8{0, 4, 10, 15, 28, 40, 45, 55}
Review comment:
this file is actually a generated file using the "stringer" command,
amusingly if you look at this and the value of `_DatumKind_name` together, they
are effectively an arrow string array. these are the offsets into the string to
get the `.String()` value for the enum values.
But like i said, this is generated by running `go generate` and is not
something hand written.
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