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plz.codegen's Introduction

wombat

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binding & validation & functional goodies.

implements api defined in v2pro/plz/util package

Example

//go:generate go install github.com/v2pro/wombat/cmd/wombat-codegen
//go:generate $GOPATH/bin/wombat-codegen -pkg github.com/v2pro/wombat/example
func init() {
	generic.Declare(func() {
		plz.Max(int(0))
		plz.Max(float64(0))
		plz.Max(model.User{}, "Score")
	})
}

func Demo_max_min(t *testing.T) {
	should := require.New(t)
	should.Equal(3, plz.Max(1, 3, 2))
	should.Equal(float64(3), plz.Max(1.0, 3.0, 2.0))
	should.Equal(model.User{3}, plz.Max(
		model.User{1}, model.User{3}, model.User{2},
		"Score"))
}

replace github.com/v2pro/wombat/example with your package name.

you need call go generate before compile

plz.codegen's People

Contributors

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Forkers

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plz.codegen's Issues

Benchmark Max of int performance

[]int 10000000 135 ns/op 0 B/op 0 allocs/op
[]interface{} manulally 10000000 221 ns/op 8 B/op 1 allocs/op
[]interface{} reflect.Value 2000000 875 ns/op 8 B/op 1 allocs/op
[]interface{} accessor 5000000 256 ns/op 8 B/op 1 allocs/op

min/max

int int8 float64
max Y Y
min

copy native objects

simple value

  • int
  • int8
  • int16
  • int32
  • int64
  • uint
  • uint8
  • uint16
  • uint32
  • uint64
  • float32
  • float64
  • string
  • bool

one level

  • int => *int
  • *int => int
  • [3]int => [3]int
  • [3]int => []int
  • map[string]int => map[string]int
  • map[string]int => struct
  • []int => [3]int
  • []int => []int
  • strut => map[string]int
  • struct => struct

two levels

  • slice + array
  • slice + map
  • [][]int => [][]int
  • slice + struct
  • array + array
  • array + map
  • array + slice
  • array + struct
  • map + array
  • map + map
  • map + slice
  • map + struct
  • struct + (array, map, slice, struct)

existing value

  • int => *int
  • []int => []*int
  • [3]int => [3]*int
  • struct (int) => struct (*int)
  • map[string]int => map[string]*int
  • int => *interface{} (*int)
  • []int => *interface{} ([]*int)

new value

  • int => *int
  • [3]int => *[3]int
  • struct => *struct
  • []int => []int
  • map[string]int => map[string]int

nil

  • int => (*int)(nil)
  • (*int)(nil) => int
  • (**int)(nil) => int
  • &(*int)(nil) => int
  • (*int)(nil) => *int
  • (**int)(nil) => *int
  • &(*int)(nil) => *int
  • []int => []int
  • map[string]int => map[string]int

empty interface

  • *interface{} => int
  • *interface{} => []int
  • int => *interface{}
  • []int => *interface{}
  • []interface{} => []int
  • []int => []interface{}
  • []interface{} => []interface{}
  • map[string]interface{} => map[string]int
  • map[string]int => map[string]interface{}
  • map[string]interface{} => map[string]interface{}

copy json

simple value

  • int
  • int8
  • int16
  • int32
  • int64
  • uint
  • uint8
  • uint16
  • uint32
  • uint64
  • float32
  • float64
  • string
  • bool

one level

  • slice + int
  • array + int
  • map + (string, int)
  • struct + *

two levels

  • slice + array
  • slice + map
  • slice + slice
  • slice + struct
  • array + array
  • array + map
  • array + slice
  • array + struct
  • map + array
  • map + map
  • map + slice
  • map + struct
  • struct + (array, map, slice, struct)

existing value

  • slice + int
  • array + int
  • map + (string, int)
  • struct

new value

nil

  • ptr int
  • ptr ptr int
  • slice int
  • slice ptr int
  • array
  • map
  • struct

empty interface

field tag

  • rename

extra

  • struct
  • [2]int

invalid

  • int
  • int via interface{}

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