Function pruneOptionalStructFields

cel/folding.go:359–387

(ctx *OptimizerContext, e ast.Expr)

}

func pruneOptionalStructFields(ctx *OptimizerContext, e ast.Expr) {
	s := e.AsStruct()
	fields := s.Fields()
	updatedFields := []ast.EntryExpr{}
	modified := false
	for _, f := range fields {
		field := f.AsStructField()
		val := field.Value()
		if !field.IsOptional() || val.Kind() != ast.LiteralKind {
			updatedFields = append(updatedFields, f)
			continue
		}
		optElemVal, ok := val.AsLiteral().(*types.Optional)
		if !ok {
			updatedFields = append(updatedFields, f)
			continue
		}
		modified = true
		if !optElemVal.HasValue() {
			continue
		}
		ctx.UpdateExpr(val, ctx.NewLiteral(optElemVal.GetValue()))
		updatedField := ctx.NewStructField(field.Name(), val, false)
		updatedFields = append(updatedFields, updatedField)
	}
	if modified {
		ctx.UpdateExpr(e, ctx.NewStruct(s.TypeName(), updatedFields))
	}
}

// adaptLiteral converts a runtime CEL value to its equivalent literal expression.
//