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46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
// Copyright 2017 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package parser
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// Value is a generic interface for values resulting from a query evaluation.
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type Value interface {
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Type() ValueType
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String() string
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}
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// ValueType describes a type of a value.
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type ValueType string
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// The valid value types.
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const (
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ValueTypeNone ValueType = "none"
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ValueTypeVector ValueType = "vector"
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ValueTypeScalar ValueType = "scalar"
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ValueTypeMatrix ValueType = "matrix"
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ValueTypeString ValueType = "string"
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)
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// DocumentedType returns the internal type to the equivalent
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// user facing terminology as defined in the documentation.
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func DocumentedType(t ValueType) string {
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switch t {
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case ValueTypeVector:
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return "instant vector"
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case ValueTypeMatrix:
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return "range vector"
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default:
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return string(t)
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}
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}
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