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use rustc::session::Session;
use syntax::ast;
use syntax::visit::Visitor;
use syntax::visit;
pub fn check_crate(sess: &Session, krate: &ast::Crate) {
if sess.target.target.options.allow_asm {
return;
}
visit::walk_crate(&mut CheckNoAsm { sess: sess }, krate);
}
#[derive(Copy, Clone)]
struct CheckNoAsm<'a> {
sess: &'a Session,
}
impl<'a> Visitor<'a> for CheckNoAsm<'a> {
fn visit_expr(&mut self, e: &'a ast::Expr) {
match e.node {
ast::ExprKind::InlineAsm(_) => {
span_err!(self.sess,
e.span,
E0472,
"asm! is unsupported on this target")
}
_ => {}
}
visit::walk_expr(self, e)
}
}