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45 lines
1.3 KiB
45 lines
1.3 KiB
// 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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