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use ast;
use diagnostic;
use visit;
use visit::Visitor;
struct ShowSpanVisitor<'a> {
span_diagnostic: &'a diagnostic::SpanHandler,
}
impl<'a, 'v> Visitor<'v> for ShowSpanVisitor<'a> {
fn visit_expr(&mut self, e: &ast::Expr) {
self.span_diagnostic.span_note(e.span, "expression");
visit::walk_expr(self, e);
}
fn visit_mac(&mut self, macro: &ast::Mac) {
visit::walk_mac(self, macro);
}
}
pub fn run(span_diagnostic: &diagnostic::SpanHandler, krate: &ast::Crate) {
let mut v = ShowSpanVisitor { span_diagnostic: span_diagnostic };
visit::walk_crate(&mut v, krate);
}