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yoda-condition

Summary: Yoda condition, it is

Category: Style

Avoid

package policy

import rego.v1

allow if {
    "GET" == input.request.method
    "users" == input.request.path[0]
}

Prefer

package policy

import rego.v1

allow if {
    input.request.method == "GET"
    input.request.path[0] == "users"
}

Rationale​

Yoda conditions — expressions where the constant portion of a comparison is placed on the left-hand side of the comparison — provide no benefits in Rego. They do however add a certain amount of cognitive overhead for most policy authors in the galaxy.

Configuration Options​

This linter rule provides the following configuration options:

rules:
  style:
    yoda-condition:
      # one of "error", "warning", "ignore"
      level: error

Community​

If you think you've found a problem with this rule or its documentation, would like to suggest improvements, new rules, or just talk about Regal in general, please join us in the #regal channel in the Styra Community Slack!