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Fig-TreeWalker/src/Module/Library/std/time/time.fig
PuqiAR ca4ae143b4
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v0.4.2-alpha
[Fix][Impl] 为了消除类构造带来的语法歧义,同时保持实现简洁和括号省略的语法,自此版本,引入了 `new` 操作符
            造成歧义的原方法:
                if a == A{}
            条件是 a == A,还是 a == A{} ?

            因此,现在使用 new a_struct{}来构造类
[Opti] 相较于 Fig v0.4.1-alpha版本,release O3同编译条件下
       Fib普通递归法性能提升 ~50%
       具体方式:
            增加了小整数优化,-128~127的整数现在会直接从IntPool获取而不是新构造
            ...忘了
[Fix] 类构造 shorthand模式忘写了,现在补上了
[Feat][Impl] 类型声明现在接受一个表达式,原为Identifier。实现 var start: time.Time = time.now() 的效果
             这是符合语法和语言特性的支持,类型为一等公民。类似Python的 <class 'type'>

[Impl] 修改了部分错误输出的细节
2026-01-22 08:24:14 +08:00

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/*
Official Module `time`
Library/time/time.fig
Copyright © 2026 PuqiAR. All rights reserved.
*/
import _builtins; // provides __ftime_now_ns (int64_t)
public struct Time
{
ns: Int; // int64_t, private
public func toNanos() -> Int
{
return ns;
}
public func toMicros() -> Int
{
return __fvalue_int_from(ns / 1000); // convert double to int
}
public func toMillis() -> Double
{
return ns / 1000 / 1000;
}
public func toSeconds() -> Double
{
return ns / 1000 / 1000 / 1000;
}
public func since(other: Time) -> Int
{
const time_ns := other.toNanos();
const result := ns - time_ns;
if result < 0
{
throw "time has been reversed! 😢";
}
return result;
}
// TODO: support `-` operator when Fig supports overload
}
public func now() -> Time
{
return new Time{__ftime_now_ns()};
}