8c00357f9d
Note: This PR is motivated by an attempt to write an custom syntax extension that tried to use `syntax::fold`, and that could only do so by fixing bugs in it and copying out private functions. --- Refactored `syntax::fold` Prior to this, the code there had a few issues: - Default implementations inconsistenly either had the prefix `noop_` or not. - Some default methods where implemented in terms of a public noop function for user code to call, others where implemented directly on the trait and did not allow users of the trait to reuse the code. - Some of the default implementations where private, and thus not reusable for other implementors. - There where some bugs where default implemntations called other default implementations directly, rather than to the underlying Folder, with the result of some ast nodes never being visted even if the user implemented that method. (For example, the current Folder never folded struct fields) This commit solves this situation somewhat radically by making __all__ `fold_...` functions in the module into Folder methods, and implementing them all in terms of public `noop_...` functions for other implementors to call out to. Some public functions had to be renamed to fit the new system, so this is a breaking change. --- Also added a few trait implementations to `ast` types |
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| .. | ||
| ast_map | ||
| diagnostics | ||
| ext | ||
| parse | ||
| util | ||
| abi.rs | ||
| ast_util.rs | ||
| ast.rs | ||
| attr.rs | ||
| codemap.rs | ||
| crateid.rs | ||
| diagnostic.rs | ||
| fold.rs | ||
| lib.rs | ||
| owned_slice.rs | ||
| visit.rs | ||