equals.go•1.22 kB
// Copyright (C) 2016 Kohei YOSHIDA. All rights reserved.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of The BSD 3-Clause License
// that can be found in the LICENSE file.
package uritemplate
type CompareFlags uint8
const (
CompareVarname CompareFlags = 1 << iota
)
// Equals reports whether or not two URI Templates t1 and t2 are equivalent.
func Equals(t1 *Template, t2 *Template, flags CompareFlags) bool {
if len(t1.exprs) != len(t2.exprs) {
return false
}
for i := 0; i < len(t1.exprs); i++ {
switch t1 := t1.exprs[i].(type) {
case literals:
t2, ok := t2.exprs[i].(literals)
if !ok {
return false
}
if t1 != t2 {
return false
}
case *expression:
t2, ok := t2.exprs[i].(*expression)
if !ok {
return false
}
if t1.op != t2.op || len(t1.vars) != len(t2.vars) {
return false
}
for n := 0; n < len(t1.vars); n++ {
v1 := t1.vars[n]
v2 := t2.vars[n]
if flags&CompareVarname == CompareVarname && v1.name != v2.name {
return false
}
if v1.maxlen != v2.maxlen || v1.explode != v2.explode {
return false
}
}
default:
panic("unhandled case")
}
}
return true
}