govendor fetch github.com/zclconf/go-cty/...

vendor/github.com/zclconf/go-cty/cty/set_internals.go

@@ -19,12 +19,24 @@ type setRules struct {
 	Type Type
 }
 
+// Hash returns a hash value for the receiver that can be used for equality
+// checks where some inaccuracy is tolerable.
+//
+// The hash function is value-type-specific, so it is not meaningful to compare
+// hash results for values of different types.
+//
+// This function is not safe to use for security-related applications, since
+// the hash used is not strong enough.
+func (val Value) Hash() int {
+	hashBytes := makeSetHashBytes(val)
+	return int(crc32.ChecksumIEEE(hashBytes))
+}
+
 func (r setRules) Hash(v interface{}) int {
-	hashBytes := makeSetHashBytes(Value{
+	return Value{
 		ty: r.Type,
 		v:  v,
-	})
-	return int(crc32.ChecksumIEEE(hashBytes))
+	}.Hash()
 }
 
 func (r setRules) Equivalent(v1 interface{}, v2 interface{}) bool {

vendor/github.com/zclconf/go-cty/cty/unknown_as_null.go

@@ -0,0 +1,64 @@
+package cty
+
+// UnknownAsNull returns a value of the same type as the given value but
+// with any unknown values (including nested values) replaced with null
+// values of the same type.
+//
+// This can be useful if a result is to be serialized in a format that can't
+// represent unknowns, such as JSON, as long as the caller does not need to
+// retain the unknown value information.
+func UnknownAsNull(val Value) Value {
+	if !val.IsKnown() {
+		return NullVal(val.Type())
+	}
+
+	ty := val.Type()
+	switch {
+	case ty.IsListType() || ty.IsTupleType() || ty.IsSetType():
+		length := val.LengthInt()
+		if length == 0 {
+			// If there are no elements then we can't have unknowns
+			return val
+		}
+		vals := make([]Value, 0, length)
+		it := val.ElementIterator()
+		for it.Next() {
+			_, v := it.Element()
+			vals = append(vals, UnknownAsNull(v))
+		}
+		switch {
+		case ty.IsListType():
+			return ListVal(vals)
+		case ty.IsTupleType():
+			return TupleVal(vals)
+		default:
+			return SetVal(vals)
+		}
+	case ty.IsMapType() || ty.IsObjectType():
+		var length int
+		switch {
+		case ty.IsMapType():
+			length = val.LengthInt()
+		default:
+			length = len(val.Type().AttributeTypes())
+		}
+		if length == 0 {
+			// If there are no elements then we can't have unknowns
+			return val
+		}
+		vals := make(map[string]Value, length)
+		it := val.ElementIterator()
+		for it.Next() {
+			k, v := it.Element()
+			vals[k.AsString()] = UnknownAsNull(v)
+		}
+		switch {
+		case ty.IsMapType():
+			return MapVal(vals)
+		default:
+			return ObjectVal(vals)
+		}
+	}
+
+	return val
+}

vendor/github.com/zclconf/go-cty/cty/value_ops.go

@@ -800,6 +800,10 @@ func (val Value) LengthInt() int {
 		// For tuples, we can return the length even if the value is not known.
 		return val.Type().Length()
 	}
+	if val.Type().IsObjectType() {
+		// For objects, the length is the number of attributes associated with the type.
+		return len(val.Type().AttributeTypes())
+	}
 	if !val.IsKnown() {
 		panic("value is not known")
 	}