efx-core 1.1.1

Core parser and AST for EFx proc-macro
Documentation 
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/// Byte position in DSL source
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct Pos(pub usize);

/// Byte range [start, end]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct SpanRange {
    pub start: Pos,
    pub end: Pos,
}

impl SpanRange {
    pub fn new(start: usize, end: usize) -> Self {
        Self {
            start: Pos(start),
            end: Pos(end),
        }
    }
}