github.com/searKing/golang/go@v1.2.117/container/traversal/handler.go (about)

     1  // Copyright 2020 The searKing Author. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package traversal
     6  
     7  type Order func(node any, handler Handler)
     8  
     9  type Handler interface {
    10  	Handle(node any, depth int) (goon bool)
    11  }
    12  
    13  // The HandlerFunc type is an adapter to allow the use of
    14  // ordinary functions as traversal handlers. If f is a function
    15  // with the appropriate signature, HandlerFunc(f) is a
    16  // Handler that calls f.
    17  type HandlerFunc func(node any, depth int) (goon bool)
    18  
    19  // ServeHTTP calls f(w, r).
    20  func (f HandlerFunc) Handle(node any, depth int) (goon bool) {
    21  	return f(node, depth)
    22  }
    23  
    24  type traversaler interface {
    25  	traversal(currents []levelNode, handler levelNodeHandler) (goon bool)
    26  }
    27  
    28  // The traversalerFunc type is an adapter to allow the use of
    29  // ordinary functions as traversal handlers. If f is a function
    30  // with the appropriate signature, HandlerFunc(f) is a
    31  // Handler that calls f.
    32  type traversalerFunc func(currents []levelNode, handler levelNodeHandler) (goon bool)
    33  
    34  // ServeHTTP calls f(w, r).
    35  func (f traversalerFunc) traversal(currents []levelNode, handler levelNodeHandler) (goon bool) {
    36  	return f(currents, handler)
    37  }
    38  
    39  type levelNodeHandler interface {
    40  	Handle(node levelNode) (goon bool)
    41  }
    42  
    43  // The levelNodeHandlerFunc type is an adapter to allow the use of
    44  // ordinary functions as traversal handlers. If f is a function
    45  // with the appropriate signature, HandlerFunc(f) is a
    46  // Handler that calls f.
    47  type levelNodeHandlerFunc func(node levelNode) (goon bool)
    48  
    49  // ServeHTTP calls f(w, r).
    50  func (f levelNodeHandlerFunc) Handle(node levelNode) (goon bool) {
    51  	return f(node)
    52  }