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Use SmallVec for patterns

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This commit is contained in:
Richard Feldman 2019-05-29 17:44:20 -04:00
parent b034e8a486
commit 6c0e34f5fc
8 changed files with 26 additions and 6 deletions
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5
src/expr.rs
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@ -1,5 +1,6 @@
use std::fmt;
use self::Expr::*;
use smallvec::SmallVec;
#[derive(Clone, Debug, PartialEq)]
pub enum Expr {
@ -17,14 +18,14 @@ pub enum Expr {
Func(String, Vec<Expr>),
Apply(Box<Expr>, Vec<Expr>),
Operator(Box<Expr>, Operator, Box<Expr>),
Closure(Vec<Pattern>, Box<Expr>),
Closure(SmallVec<[Pattern; 4]>, Box<Expr>),
// Sum Types
ApplyVariant(String, Option<Vec<Expr>>),
// Conditionals
If(Box<Expr>, Box<Expr>, Box<Expr>),
Match(Box<Expr>, Vec<(Pattern, Box<Expr>)>),
Match(Box<Expr>, SmallVec<[(Pattern, Box<Expr>); 4]>),
// Error
Error(Problem),