function validateBehaviors()

in compiler/src/steps/validate-model.ts [683:713]
27 lines of code
21 McCabe index (conditional complexity)

  function validateBehaviors (typeDef: model.Request | model.Response | model.Interface, openGenerics: Set<string>): void {
    if (typeDef.kind !== 'response' && typeDef.behaviors != null && typeDef.behaviors.length > 0) {
      context.push('Behaviors')
      for (const parent of typeDef.behaviors) {
        validateTypeRef(parent.type, parent.generics, openGenerics)

        if (parent.type.name === 'AdditionalProperty' && (parent.meta == null || parent.meta.key == null || parent.meta.value == null)) {
          modelError(`AdditionalProperty behavior for type '${fqn(typeDef.name)}' requires a 'behavior_meta' decorator with at least 2 arguments (key, value)`)
        }
        if (parent.type.name === 'AdditionalProperties' && (parent.meta == null || parent.meta.fieldname == null || parent.meta.description == null)) {
          modelError(`AdditionalProperties behavior for type '${fqn(typeDef.name)}' requires a 'behavior_meta' decorator with exactly 2 arguments (fieldname, description)`)
        }
      }
      context.pop()
    }

    // Each attached behavior must be in the behaviors attached to this class or an ancestor
    if (typeDef.kind !== 'response' && typeDef.attachedBehaviors != null) {
      for (const abh of typeDef.attachedBehaviors) {
        const bhName = behaviorByShortName.get(abh)
        if (bhName == null) {
          modelError(`No type definition for behavior '${abh}'`)
          continue
        }

        if (!behaviorExists(typeDef, bhName)) {
          modelError(`Attached behavior '${abh}' not found in type or ancestors`)
        }
      }
    }
  }