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enhancement: Add CEL math extension #1569

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merged 1 commit into from May 10, 2023
Merged

enhancement: Add CEL math extension #1569

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9 changes: 9 additions & 0 deletions docs/modules/policies/pages/conditions.adoc
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Expand Up @@ -337,6 +337,15 @@ NOTE: The IP address functions are Cerbos-specific extensions to CEL.
| size | Number of elements in a list or map | size(P.attr.teams) == 4 && size(P.attr.clients) == 2
|===

== Math

[caption=]
[%header,cols=".^1m,.^2,4m",grid=rows]
|===
| Function | Description | Example
| math.greatest | Get the greatest valued number present in the arguments | math.greatest([1, 3, 5]) == 5
| math.least | Get the least valued number present in the arguments | math.least([1, 3, 5]) == 1
|===

== Strings

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2 changes: 2 additions & 0 deletions internal/conditions/cel.go
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Expand Up @@ -139,6 +139,7 @@ func newCELQueryPlanEnvOptions() []cel.EnvOption {
),
ext.Strings(),
ext.Encoders(),
ext.Math(),
CerbosCELLib(),
}
}
Expand All @@ -150,6 +151,7 @@ func newCELEnvOptions() []cel.EnvOption {
cel.Declarations(StdEnvDecls...),
ext.Strings(),
ext.Encoders(),
ext.Math(),
CerbosCELLib(),
}
}