Enum Expr

pub enum Expr {
    Ref(Loc, Target),
    Word(Loc, Option<Width>, u64),
    Enum(Loc, Type, String),
    Struct(Loc, Vec<(String, Box<Expr>)>),
    Vec(Loc, Vec<Expr>),
    Call(Loc, String, Vec<Expr>),
    Let(Loc, String, Box<Expr>, Box<Expr>),
    UnOp(Loc, UnOp, Box<Expr>),
    BinOp(Loc, BinOp, Box<Expr>, Box<Expr>),
    If(Loc, Box<Expr>, Box<Expr>, Box<Expr>),
    Match(Loc, Box<Expr>, Vec<MatchArm>),
    IdxField(Loc, Box<Expr>, String),
    Idx(Loc, Box<Expr>, u64),
    IdxRange(Loc, Box<Expr>, u64, u64),
    Hole(Loc, Option<String>),
}

An expression.

Variants

Ref(Loc, Target)

A referenec to a port, reg, or node.

Word(Loc, Option<Width>, u64)

A literal Word.

Enum(Loc, Type, String)

A literal enum value.

Struct(Loc, Vec<(String, Box<Expr>)>)

A constructor for a struct type.

Vec(Loc, Vec<Expr>)

A constructor for a Vec

Call(Loc, String, Vec<Expr>)

A call-like expression, including cat and constructors like @Valid.

Let(Loc, String, Box<Expr>, Box<Expr>)

Let binding. Eg, let x = a + b in x + x.

UnOp(Loc, UnOp, Box<Expr>)

A unary operation. Eg, !0b101w3.

BinOp(Loc, BinOp, Box<Expr>, Box<Expr>)

A binary operation. Eg, 1w8 + 1w8.

If(Loc, Box<Expr>, Box<Expr>, Box<Expr>)

An if expression.

Match(Loc, Box<Expr>, Vec<MatchArm>)

A match expression.

IdxField(Loc, Box<Expr>, String)

A field index. Eg, foo->bar.

Idx(Loc, Box<Expr>, u64)

A static index. Eg, foo[0].

IdxRange(Loc, Box<Expr>, u64, u64)

A static index over a range. Eg, foo[8..4].

Hole(Loc, Option<String>)

A hole. Eg, ?foo.

Trait Implementations

impl Clone for Expr

fn clone(&self) -> Expr

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Expr

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.