Merge pull request #36 from promlabs/alternative-top

Provide alternative "MetricName" top-level entrypoint
prometheus · May 19, 2021 · c3636ff · c3636ff
2 parents 6f53dba + 266248f
commit c3636ff
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diff --git a/package-lock.json b/package-lock.json
diff --git a/src/promql.grammar b/src/promql.grammar
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 @top PromQL { Expr }
+@top MetricName { MetricIdentifier }
 
 @precedence {
   pow @right,

diff --git a/test/expression.txt b/test/expression.txt
@@ -833,3 +833,10 @@ foo offset 5d
 
 ==>
 PromQL(Expr(OffsetExpr(Expr(VectorSelector(MetricIdentifier(Identifier))), Offset, Duration)))
+
+# Parsing only metric names with alternative @top { "top": "MetricName" }
+
+sum:my_metric_name:rate5m
+
+==>
+MetricName(MetricIdentifier(Identifier))