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    lazy

    a lazy library support recursion

    lazy
    lazy recursion
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    Version
    0.1.3
    License
    Apache-2.0
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    Last updated
    last year
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    48

    #illusory0x0/lazy

    a lazy library support recursion

    #Example

    #component

    #extensible parser

    This example refer to zhihu blogs 愿你走出半生，归来仍是 Java Parser - 圆角骑士魔理沙的文章 - 知乎

    Haskell implementation MarisaKirisame/extensible-parser

    Haskell2010 implementation illusory0x0/extensible-parser

    Moonbit implementation illusory0x0/extensible-parser.mbt

    #even/odd

    Haskell implementation gist

    #Recommaned Reading

    lazy pattern match strict pattern match

    #lazylist/fibs

    Haskell implementation fibs

    lazy is not recommaned used for this example, lazy is call by need is suitable for some lazy values won't actually be used

    GHC is implemented by Graph Reduction, G-machine never Stack Overflow, Moonbit hasn't this runtime support, So implement fibs use zipWith efficiently is impossible.

    fibs = 0 : 1 : zipWith (+) fibs (tail fibs)

    Lazy

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    type Lazy[A]

    impl Show for Lazy[A]

    Lazy::bind

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    fn[A, B] Lazy::bind(self : Lazy[A], f : (A) -> Lazy[B]) -> Lazy[B]

    Lazy::fix

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    fn[A] Lazy::fix(f : (Lazy[A]) -> Lazy[A]) -> Lazy[A]

    Lazy::force

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    fn[A] Lazy::force(self : Lazy[A]) -> A

    Lazy::join

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    fn[A] Lazy::join(self : Lazy[Lazy[A]]) -> Lazy[A]

    Lazy::map

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    fn[A, B] Lazy::map(self : Lazy[A], f : (A) -> B) -> Lazy[B]

    Lazy::new

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    fn[A] Lazy::new(fun : () -> A) -> Lazy[A]

    LazyBuilder

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    type LazyBuilder[A]

    LazyBuilder::inherit_

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    fn[A, B] LazyBuilder::inherit_(self : LazyBuilder[A], f : (A) -> B, g : (B) -> A) -> LazyBuilder[B]

    LazyBuilder::map

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    fn[A] LazyBuilder::map(self : LazyBuilder[A], f : (A) -> A) -> LazyBuilder[A]

    LazyBuilder::new

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    fn[A] LazyBuilder::new(f : (Lazy[A]) -> A) -> LazyBuilder[A]

    LazyBuilder::run

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    fn[A] LazyBuilder::run(self : LazyBuilder[A]) -> Lazy[A]

    LazyBuilder::run_force

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    fn[A] LazyBuilder::run_force(self : LazyBuilder[A]) -> A

    LazyRec

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    type LazyRec[A]

    impl Show for LazyRec[T]

    LazyRec::force

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    fn[A] LazyRec::force(self : LazyRec[A]) -> A

    LazyRec::get

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    fn[A, B] LazyRec::get(self : LazyRec[A], f : (A) -> B) -> B

    LazyRec::modify

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    fn[A] LazyRec::modify(self : LazyRec[A], f : (A) -> A) -> Unit

    LazyRec::new

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    fn[A] LazyRec::new(f : (Lazy[A]) -> A) -> LazyRec[A]

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