diff options
Diffstat (limited to 'vendor/github.com/zclconf/go-cty/cty/collection.go')
-rw-r--r-- | vendor/github.com/zclconf/go-cty/cty/collection.go | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/vendor/github.com/zclconf/go-cty/cty/collection.go b/vendor/github.com/zclconf/go-cty/cty/collection.go new file mode 100644 index 0000000..ab3919b --- /dev/null +++ b/vendor/github.com/zclconf/go-cty/cty/collection.go | |||
@@ -0,0 +1,34 @@ | |||
1 | package cty | ||
2 | |||
3 | import ( | ||
4 | "errors" | ||
5 | ) | ||
6 | |||
7 | type collectionTypeImpl interface { | ||
8 | ElementType() Type | ||
9 | } | ||
10 | |||
11 | // IsCollectionType returns true if the given type supports the operations | ||
12 | // that are defined for all collection types. | ||
13 | func (t Type) IsCollectionType() bool { | ||
14 | _, ok := t.typeImpl.(collectionTypeImpl) | ||
15 | return ok | ||
16 | } | ||
17 | |||
18 | // ElementType returns the element type of the receiver if it is a collection | ||
19 | // type, or panics if it is not. Use IsCollectionType first to test whether | ||
20 | // this method will succeed. | ||
21 | func (t Type) ElementType() Type { | ||
22 | if ct, ok := t.typeImpl.(collectionTypeImpl); ok { | ||
23 | return ct.ElementType() | ||
24 | } | ||
25 | panic(errors.New("not a collection type")) | ||
26 | } | ||
27 | |||
28 | // ElementCallback is a callback type used for iterating over elements of | ||
29 | // collections and attributes of objects. | ||
30 | // | ||
31 | // The types of key and value depend on what type is being iterated over. | ||
32 | // Return true to stop iterating after the current element, or false to | ||
33 | // continue iterating. | ||
34 | type ElementCallback func(key Value, val Value) (stop bool) | ||