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auto merge of #9088 : nikomatsakis/rust/issue-6304-AST-tree-not-DAG, …
…r=catamorphism Ensures that each AST node has a unique id. Fixes numerous bugs in macro expansion and deriving. Add two representative tests. Fixes #7971 Fixes #6304 Fixes #8367 Fixes #8754 Fixes #8852 Fixes #2543 Fixes #7654
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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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use driver::session::Session; | ||
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use syntax::ast; | ||
use syntax::ast_util; | ||
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pub fn assign_node_ids(sess: Session, crate: @ast::Crate) -> @ast::Crate { | ||
let fold = ast_util::node_id_assigner(|| sess.next_node_id()); | ||
@fold.fold_crate(crate) | ||
} |
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