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use crate::ast::{self, kw};
use crate::parser::{Parse, Parser, Result};
#[derive(Debug)]
pub struct Export<'a> {
pub name: &'a str,
pub kind: ExportKind<'a>,
}
#[derive(Debug)]
#[allow(missing_docs)]
pub enum ExportKind<'a> {
Func(ast::Index<'a>),
Table(ast::Index<'a>),
Memory(ast::Index<'a>),
Global(ast::Index<'a>),
}
impl<'a> Parse<'a> for Export<'a> {
fn parse(parser: Parser<'a>) -> Result<Self> {
parser.parse::<kw::export>()?;
let name = parser.parse()?;
let kind = parser.parens(|parser| {
let mut l = parser.lookahead1();
if l.peek::<kw::func>() {
parser.parse::<kw::func>()?;
Ok(ExportKind::Func(parser.parse()?))
} else if l.peek::<kw::table>() {
parser.parse::<kw::table>()?;
Ok(ExportKind::Table(parser.parse()?))
} else if l.peek::<kw::memory>() {
parser.parse::<kw::memory>()?;
Ok(ExportKind::Memory(parser.parse()?))
} else if l.peek::<kw::global>() {
parser.parse::<kw::global>()?;
Ok(ExportKind::Global(parser.parse()?))
} else {
Err(l.error())
}
})?;
Ok(Export { name, kind })
}
}
#[derive(Debug)]
pub struct InlineExport<'a> {
pub names: Vec<&'a str>,
}
impl<'a> Parse<'a> for InlineExport<'a> {
fn parse(parser: Parser<'a>) -> Result<Self> {
let mut names = Vec::new();
while parser.peek2::<kw::export>() {
names.push(parser.parens(|p| {
p.parse::<kw::export>()?;
p.parse::<&str>()
})?);
}
Ok(InlineExport { names })
}
}