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use num_rational::BigRational;
use pest::Span;
#[derive(Debug)]
pub struct Expression<'i> {
pub expression: ExpressionType<'i>,
pub span: Span<'i>,
}
#[derive(Debug)]
pub enum ExpressionType<'i> {
Atom(Box<ExpressionAtom<'i>>),
UnaryPlus(Box<Expression<'i>>),
UnaryMinus(Box<Expression<'i>>),
UnaryNot(Box<Expression<'i>>),
Attribute(Box<Expression<'i>>, &'i str),
Exponent(Box<Expression<'i>>, Box<Expression<'i>>),
Multiply(Box<Expression<'i>>, Box<Expression<'i>>),
Divide(Box<Expression<'i>>, Box<Expression<'i>>),
Modulo(Box<Expression<'i>>, Box<Expression<'i>>),
Add(Box<Expression<'i>>, Box<Expression<'i>>),
Subtract(Box<Expression<'i>>, Box<Expression<'i>>),
BitOr(Box<Expression<'i>>, Box<Expression<'i>>),
BitXor(Box<Expression<'i>>, Box<Expression<'i>>),
BitAnd(Box<Expression<'i>>, Box<Expression<'i>>),
Equal(Box<Expression<'i>>, Box<Expression<'i>>),
NotEqual(Box<Expression<'i>>, Box<Expression<'i>>),
LessOrEqual(Box<Expression<'i>>, Box<Expression<'i>>),
GreaterOrEqual(Box<Expression<'i>>, Box<Expression<'i>>),
Less(Box<Expression<'i>>, Box<Expression<'i>>),
Greater(Box<Expression<'i>>, Box<Expression<'i>>),
LogicalOr(Box<Expression<'i>>, Box<Expression<'i>>),
LogicalAnd(Box<Expression<'i>>, Box<Expression<'i>>),
}
#[derive(Debug)]
pub enum ExpressionAtom<'i> {
Parenthesized(Expression<'i>),
Type(Type<'i>),
Literal(Literal<'i>),
Identifier(&'i str),
}
#[derive(Debug)]
pub struct Literal<'i> {
pub literal: LiteralType<'i>,
pub span: Span<'i>,
}
#[derive(Debug)]
pub struct Identifier<'i> {
pub name: &'i str,
pub span: Span<'i>,
}
#[derive(Debug)]
pub enum LiteralType<'i> {
Set(Vec<Expression<'i>>),
Number(BigRational),
String(String),
Boolean(bool),
}
#[derive(Debug)]
pub enum Type<'i> {
Scalar(ScalarType<'i>),
Array(ArrayType<'i>),
}
#[derive(Debug)]
pub enum ScalarType<'i> {
Versioned(VersionedType<'i>),
Primitive(PrimitiveType),
Void { bits: u8 },
}
#[derive(Debug)]
pub enum PrimitiveType {
Boolean,
Int { bits: u8 },
UInt { bits: u8, mode: CastMode },
Float16 { mode: CastMode },
Float32 { mode: CastMode },
Float64 { mode: CastMode },
}
#[derive(Debug, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum CastMode {
Truncated,
Saturated,
}
#[derive(Debug)]
pub struct VersionedType<'i> {
pub path: Vec<&'i str>,
pub name: &'i str,
pub version: TypeVersion,
}
#[derive(Debug, Clone, PartialOrd, PartialEq, Ord, Eq)]
pub struct TypeVersion {
pub major: u8,
pub minor: u8,
}
mod fmt_impl {
use super::TypeVersion;
use std::fmt::{Display, Formatter, Result};
impl Display for TypeVersion {
fn fmt(&self, f: &mut Formatter<'_>) -> Result {
write!(f, "{}.{}", self.major, self.minor)
}
}
}
#[derive(Debug)]
pub struct ArrayType<'i> {
pub element: ScalarType<'i>,
pub length: ArrayLength<'i>,
}
#[derive(Debug)]
pub enum ArrayLength<'i> {
Fixed(Expression<'i>),
Inclusive(Expression<'i>),
Exclusive(Expression<'i>),
}
#[derive(Debug)]
pub enum Statement<'i> {
Directive {
name: Identifier<'i>,
value: Option<Expression<'i>>,
},
Constant {
ty: PrimitiveType,
name: Identifier<'i>,
value: Expression<'i>,
},
Field {
ty: Type<'i>,
name: Identifier<'i>,
span: Span<'i>,
},
PaddingField { bits: u8, span: Span<'i> },
ServiceResponseMarker(Span<'i>),
}
#[derive(Debug)]
pub struct Definition<'i> {
pub statements: Vec<Statement<'i>>,
pub eof_span: Span<'i>,
}