Module rustc_expand::hygiene [−][src]
Expand description
Machinery for hygienic macros.
Inspired by Matthew Flatt et al., “Macros That Work Together: Compile-Time Bindings, Partial Expansion, and Definition Contexts,” Journal of Functional Programming 22, no. 2 (March 1, 2012): 181–216, https://doi.org/10.1017/S0956796812000093.
Structs
A subset of properties from both macro definition and macro call available through global data. Avoid using this if you have access to the original definition or call structures.
A unique hash value associated to an expansion.
A unique ID associated with a macro invocation and expansion.
A unique ID associated with a macro invocation and expansion.
Additional information used to assist in decoding hygiene data
A unique ID associated with a macro invocation and expansion.
A SyntaxContext represents a chain of pairs (ExpnId, Transparency) named “marks”.
Enums
The kind of AST transform.
The kind of compiler desugaring.
Expansion kind.
A location in the desugaring of a for loop
The kind of macro invocation or definition.
A property of a macro expansion that determines how identifiers produced by that expansion are resolved.
Functions
Decode an expansion from the metadata of a foreign crate.
Register an expansion which has been decoded from the metadata of a foreign crate.
Register an expansion which has been decoded from the on-disk-cache for the local crate.