1188cff9b4# Describe Request Greater than or equal tp (Gte) and less than or equal to (Lte) checks are added. # Change Type New checks.
67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
// Copyright (c) 2023-2024 Onur Cinar.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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// https://github.com/cinar/checker
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package v2
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import (
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"cmp"
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"reflect"
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"strconv"
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)
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const (
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// nameLte is the name of the less than or equal to check.
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nameLte = "lte"
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)
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var (
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// ErrLte indicates that the value is not less than or equal to the given value.
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ErrLte = NewCheckError("NOT_LTE")
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)
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// IsLte checks if the value is less than or equal to the given value.
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func IsLte[T cmp.Ordered](value, n T) (T, error) {
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if cmp.Compare(value, n) > 0 {
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return value, newLteError(n)
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}
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return value, nil
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}
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// makeLte creates a less than or equal to check function from a string parameter.
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// Panics if the parameter cannot be parsed as a number.
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func makeLte(params string) CheckFunc[reflect.Value] {
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n, err := strconv.ParseFloat(params, 64)
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if err != nil {
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panic("unable to parse params as float")
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}
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return func(value reflect.Value) (reflect.Value, error) {
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v := reflect.Indirect(value)
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switch {
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case v.CanInt():
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_, err := IsLte(float64(v.Int()), n)
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return v, err
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case v.CanFloat():
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_, err := IsLte(v.Float(), n)
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return v, err
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default:
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panic("value is not numeric")
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}
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}
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}
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// newLteError creates a new less than or equal to error with the given value.
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func newLteError[T cmp.Ordered](n T) error {
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return NewCheckErrorWithData(
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ErrLte.Code,
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map[string]interface{}{
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"n": n,
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},
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)
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}
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