protospec-build 0.3.0

One binary format language to rule them all, One binary format language to find them, One binary format language to bring them all and in the darkness bind them.
Documentation 
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use super::*;

mod binary;
pub use binary::*;

mod unary;
pub use unary::*;

mod cast;
pub use cast::*;

mod array_index;
pub use array_index::*;

mod enum_access;
pub use enum_access::*;

mod ternary;
pub use ternary::*;

mod call;
pub use call::*;

mod const_int;
pub use const_int::*;

mod int;
pub use int::*;

mod member;
pub use member::*;

pub trait AsgExpression {
    fn get_type(&self) -> Option<Type>;
}

#[derive(PartialEq, Clone, Debug)]
pub enum Expression {
    Binary(BinaryExpression),
    Unary(UnaryExpression),
    Cast(CastExpression),
    ArrayIndex(ArrayIndexExpression),
    EnumAccess(EnumAccessExpression),
    Int(Int),
    ConstRef(Arc<Const>),
    InputRef(Arc<Input>),
    FieldRef(Arc<Field>),
    Str(ast::Str),
    Ternary(TernaryExpression),
    Bool(bool),
    Call(CallExpression),
    Member(MemberExpression),
}

impl AsgExpression for Expression {
    fn get_type(&self) -> Option<Type> {
        use Expression::*;
        match self {
            Binary(e) => e.get_type(),
            Unary(e) => e.get_type(),
            Cast(e) => e.get_type(),
            ArrayIndex(e) => e.get_type(),
            EnumAccess(e) => e.get_type(),
            Int(e) => Some(Type::Scalar(e.type_)),
            ConstRef(e) => e.get_type(),
            InputRef(e) => e.get_type(),
            FieldRef(e) => e.get_type(),
            Str(e) => Some(Type::Array(Box::new(ArrayType {
                element: Arc::new(Field {
                    name: "$string".to_string(),
                    arguments: RefCell::new(vec![]),
                    span: e.span,
                    type_: RefCell::new(Type::Scalar(ScalarType::U8)),
                    condition: RefCell::new(None),
                    transforms: RefCell::new(vec![]),
                    toplevel: false,
                    is_auto: Cell::new(false),
                    is_maybe_cyclical: Cell::new(false),
                    is_pad: Cell::new(false),
                }),
                length: LengthConstraint {
                    expandable: true,
                    value: Some(Expression::Int(self::Int {
                        value: ConstInt::U64(e.content.len() as u64),
                        type_: ScalarType::U64,
                        span: e.span,
                    })),
                },
            }))),
            Ternary(e) => e.get_type(),
            Bool(_) => Some(Type::Bool),
            Call(ffi) => ffi.get_type(),
            Member(e) => e.get_type(),
        }
    }
}

impl fmt::Display for Expression {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "..")
        // use Expression::*;
        // match self {
        //     Binary(e) => e.fmt(f),
        //     Unary(e) => e.fmt(f),
        //     Cast(e) => e.fmt(f),
        //     ArrayIndex(e) => e.fmt(f),
        //     Int(e) => e.fmt(f),
        //     ConstRef(e) => e.fmt(f),
        //     FieldRef(e) => e.fmt(f),
        //     Str(e) => e.fmt(f),
        //     Ternary(e) => e.fmt(f),
        // }
    }
}

impl From<Int> for Expression {
    fn from(from: Int) -> Self {
        Expression::Int(from)
    }
}

impl From<u64> for Expression {
    fn from(from: u64) -> Self {
        Expression::Int(from.into())
    }
}