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thread tighter span for closures around

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Track the span corresponding to the `|...|` part of the closure.
This commit is contained in:
Niko Matsakis
2016-04-20 14:44:07 -04:00
committed by Manish Goregaokar
parent 23ccaddaa7
commit ecd10f04ce
29 changed files with 87 additions and 53 deletions
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13
src/libsyntax/ext/expand.rs
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@@ -149,14 +149,17 @@ pub fn expand_expr(e: P<ast::Expr>, fld: &mut MacroExpander) -> P<ast::Expr> {
fld.cx.expr(span, il).with_attrs(fold_thin_attrs(attrs, fld))
}
ast::ExprKind::Closure(capture_clause, fn_decl, block) => {
ast::ExprKind::Closure(capture_clause, fn_decl, block, fn_decl_span) => {
let (rewritten_fn_decl, rewritten_block)
= expand_and_rename_fn_decl_and_block(fn_decl, block, fld);
let new_node = ast::ExprKind::Closure(capture_clause,
rewritten_fn_decl,
rewritten_block);
P(ast::Expr{id:id, node: new_node, span: fld.new_span(span),
attrs: fold_thin_attrs(attrs, fld)})
rewritten_fn_decl,
rewritten_block,
fld.new_span(fn_decl_span));
P(ast::Expr{ id:id,
node: new_node,
span: fld.new_span(span),
attrs: fold_thin_attrs(attrs, fld) })
}
_ => {