pkg/list: add list builtins for OpenAPI features
MaxItems, MinItems, UniqueItems, and Contains
Also added conversion to OpenAPI (except for
Contains, which is no supported by the latter).
Change-Id: I2edf4e8572acc08e8ced4a61918dff091325f3a0
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2642
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/encoding/openapi/build.go b/encoding/openapi/build.go
index 568d643..bf50916 100644
--- a/encoding/openapi/build.go
+++ b/encoding/openapi/build.go
@@ -499,6 +499,44 @@
// schema: an array instance is valid if at least one element matches
// this schema.
func (b *builder) array(v cue.Value) {
+
+ switch op, a := v.Expr(); op {
+ case cue.CallOp:
+ name := fmt.Sprint(a[0])
+ switch name {
+ case "list.UniqueItems":
+ if len(a) != 1 {
+ b.failf(v, "builtin %v may only be used without arguments", name)
+ }
+ b.setFilter("Schema", "uniqueItems", true)
+ return
+
+ case "list.MinItems":
+ if len(a) != 2 {
+ b.failf(v, "builtin %v must be called with one argument", name)
+ }
+ b.setFilter("Schema", "minItems", b.int(a[1]))
+ return
+
+ case "list.MaxItems":
+ if len(a) != 2 {
+ b.failf(v, "builtin %v must be called with one argument", name)
+ }
+ b.setFilter("Schema", "maxItems", b.int(a[1]))
+ return
+
+ default:
+ b.failf(v, "builtin %v not supported in OpenAPI", name)
+ }
+
+ case cue.NoOp:
+ // TODO: extract format from specific type.
+
+ default:
+ b.failf(v, "unsupported op %v for number type", op)
+ return
+ }
+
// Possible conjuncts:
// - one list (CUE guarantees merging all conjuncts)
// - no cap: is unified with list
