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use crate::ast::{self, kw};
use crate::parser::{Parse, Parser, Result};
#[derive(Debug)]
pub struct Global<'a> {
pub span: ast::Span,
pub name: Option<ast::Id<'a>>,
pub exports: ast::InlineExport<'a>,
pub ty: ast::GlobalType,
pub kind: GlobalKind<'a>,
}
#[derive(Debug)]
pub enum GlobalKind<'a> {
Import {
module: &'a str,
name: &'a str,
},
Inline(ast::Expression<'a>),
}
impl<'a> Parse<'a> for Global<'a> {
fn parse(parser: Parser<'a>) -> Result<Self> {
let span = parser.parse::<kw::global>()?.0;
let name = parser.parse()?;
let exports = parser.parse()?;
let (ty, kind) = if parser.peek2::<kw::import>() {
let (module, name) = parser.parens(|p| {
p.parse::<kw::import>()?;
Ok((p.parse()?, p.parse()?))
})?;
(parser.parse()?, GlobalKind::Import { module, name })
} else {
(parser.parse()?, GlobalKind::Inline(parser.parse()?))
};
Ok(Global {
span,
name,
exports,
ty,
kind,
})
}
}