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59 lines
2.0 KiB
Go
59 lines
2.0 KiB
Go
// Copyright 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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import "github.com/prometheus/prometheus/util/features"
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// RegisterFeatures registers all PromQL features with the feature registry.
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// This includes operators (arithmetic and comparison/set), aggregators (standard
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// and experimental), and functions.
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func (pql *promQLParser) RegisterFeatures(r features.Collector) {
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// Register core PromQL language keywords.
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for keyword, itemType := range key {
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if itemType.IsKeyword() {
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switch keyword {
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case "anchored", "smoothed":
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r.Set(features.PromQL, keyword, pql.options.EnableExtendedRangeSelectors)
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case "fill", "fill_left", "fill_right":
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r.Set(features.PromQL, keyword, pql.options.EnableBinopFillModifiers)
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default:
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r.Enable(features.PromQL, keyword)
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}
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}
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}
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// Register operators.
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for o := ItemType(operatorsStart + 1); o < operatorsEnd; o++ {
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if o.IsOperator() {
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r.Set(features.PromQLOperators, o.String(), true)
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}
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}
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// Register aggregators.
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for a := ItemType(aggregatorsStart + 1); a < aggregatorsEnd; a++ {
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if a.IsAggregator() {
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experimental := a.IsExperimentalAggregator() && !pql.options.EnableExperimentalFunctions
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r.Set(features.PromQLOperators, a.String(), !experimental)
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}
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}
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// Register functions.
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for f, fc := range Functions {
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r.Set(features.PromQLFunctions, f, !fc.Experimental || pql.options.EnableExperimentalFunctions)
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}
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// Register experimental parser features.
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r.Set(features.PromQL, "duration_expr", pql.options.ExperimentalDurationExpr)
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}
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