Groovy 中的 AST 转换：创建宏以提供基本构造函数
我想制作一个宏，本质上将其扩展
@WithBasicConstructor
class Person {
private String name
private String address
}
为：
class Person {
private String name
private String address
Person(String name, String address) {
this.name = name
this.address = address
}
}
我一直在阅读 @Immutable 的代码，以了解它是如何完成的。有人用过新的 AstBuilder 吗？
有什么想法如何实施吗？ AstBuilder 对于 string/code/spec 是否有首选选项？
I would like to make a macro that would essentially expand this:
@WithBasicConstructor
class Person {
private String name
private String address
}
into this:
class Person {
private String name
private String address
Person(String name, String address) {
this.name = name
this.address = address
}
}
I've been reading through the code for @Immutable to get a feel for how it is done. Has anyone used the new AstBuilder?
Any ideas how to implement this? Is there a preferred option between AstBuilder for string/code/spec ?
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评论（1）
您可以使用（或复制）groovy 1.8 中的
@groovy.transform.TupleConstructor。关于偏好...我喜欢
buildFromSpec，它会减少意外情况。但我建议您尝试一下
buildFromCode，测试它的局限性和怪癖，并尝试一下所有这些。You could use (or copy)
@groovy.transform.TupleConstructorfrom groovy 1.8.Regarding preferences... I like the
buildFromSpec, it leads to fewer surprises.But I'd suggest you try the
buildFromCode, test its limitations and quirks, play a little with all of them.