commit | 577d1d06ed2a9cf08e73ec33b21045d71841d9e6 | [log] [tgz] |
---|---|---|
author | Lann <github-lann@lannbox.com> | Thu Aug 02 19:33:54 2018 |
committer | Lann Martin <lannm@google.com> | Thu Aug 02 19:37:17 2018 |
tree | d1cc6eb4e476b34a91890b58c55458da42e898dd | |
parent | ce88ec43db741776c23420d3561d8065fc816f95 [diff] |
Update .travis.yml More modern git versions.
Builder was originally written for Squirrel, a fluent SQL generator. It is probably the best example of Builder in action.
Builder helps you write fluent DSLs for your libraries with method chaining:
resp := ReqBuilder.
Url("http://golang.org").
Header("User-Agent", "Builder").
Get()
Builder uses immutable persistent data structures (these, specifically) so that each step in your method chain can be reused:
build := WordBuilder.AddLetters("Build")
builder := build.AddLetters("er")
building := build.AddLetters("ing")
Builder makes it easy to build structs using the builder pattern (surprise!):
import "github.com/lann/builder"
type Muppet struct {
Name string
Friends []string
}
type muppetBuilder builder.Builder
func (b muppetBuilder) Name(name string) muppetBuilder {
return builder.Set(b, "Name", name).(muppetBuilder)
}
func (b muppetBuilder) AddFriend(friend string) muppetBuilder {
return builder.Append(b, "Friends", friend).(muppetBuilder)
}
func (b muppetBuilder) Build() Muppet {
return builder.GetStruct(b).(Muppet)
}
var MuppetBuilder = builder.Register(muppetBuilder{}, Muppet{}).(muppetBuilder)
MuppetBuilder.
Name("Beaker").
AddFriend("Dr. Honeydew").
Build()
=> Muppet{Name:"Beaker", Friends:[]string{"Dr. Honeydew"}}
Builder is released under the MIT License.