vii
目录
序
................................................................................. 1
前言
.............................................................................. 3
第
1
章
类型检查
...........................................................11
1.1
为什么使用类型检查器
.................................................................................. 11
1.2
设置类型检查器
.............................................................................................12
1.3
类型标注语法
.................................................................................................14
1.4 Hack
的类型系统
............................................................................................16
1.5
规则
................................................................................................................ ...