Crate syntax [−] [src]

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

The Rust parser and macro expander.

Note

This API is completely unstable and subject to change.

Reexports

pub extern crate rustc_errors as errors;

Modules

abi	[ Experimental ]
ast	[ Experimental ]
attr	[ Experimental ]
codemap	[ Experimental ] The CodeMap tracks all the source code used within a single crate, mapping from integer byte positions to the original source code location. Each bit of source parsed during crate parsing (typically files, in-memory strings, or various bits of macro expansion) cover a continuous range of bytes in the CodeMap and are represented by FileMaps. Byte positions are stored in `spans` and used pervasively in the compiler. They are absolute positions within the CodeMap, which upon request can be converted to line and column information, source code snippets, etc.
config	[ Experimental ]
diagnostic_list	[ Experimental ]
diagnostics	[ Experimental ]
entry	[ Experimental ]
ext	[ Experimental ]
feature_gate	[ Experimental ] Feature gating
fold	[ Experimental ] A Folder represents an AST->AST fold; it accepts an AST piece, and returns a piece of the same type. So, for instance, macro expansion is a Folder that walks over an AST and produces another AST.
json	[ Experimental ] A JSON emitter for errors.
parse	[ Experimental ] The main parser interface
print	[ Experimental ]
ptr	[ Experimental ] The AST pointer
show_span	[ Experimental ] Span debugger
std_inject	[ Experimental ]
str	[ Experimental ]
symbol	[ Experimental ] An "interner" is a data structure that associates values with usize tags and allows bidirectional lookup; i.e. given a value, one can easily find the type, and vice versa.
syntax	[ Experimental ]
test	[ Experimental ]
tokenstream	[ Experimental ] Token Streams `TokenStream`s represent syntactic objects before they are converted into ASTs. A `TokenStream` is, roughly speaking, a sequence (eg stream) of `TokenTree`s, which are themselves a single `Token` or a `Delimited` subsequence of tokens.
util	[ Experimental ]
visit	[ Experimental ] AST walker. Each overridden visit method has full control over what happens with its node, it can do its own traversal of the node's children, call `visit::walk_*` to apply the default traversal algorithm, or prevent deeper traversal by doing nothing.

Macros

help	[ Experimental ]
panictry	[ Experimental ]
register_diagnostic	[ Experimental ]
register_diagnostics	[ Experimental ]
register_long_diagnostics	[ Experimental ]
span_err	[ Experimental ]
span_err_or_warn	[ Experimental ]
span_fatal	[ Experimental ]
span_help	[ Experimental ]
span_note	[ Experimental ]
span_warn	[ Experimental ]
struct_err	[ Experimental ]
struct_span_err	[ Experimental ]
struct_span_err_or_warn	[ Experimental ]
struct_span_fatal	[ Experimental ]
struct_span_warn	[ Experimental ]
type_error_struct	[ Experimental ]
unwrap_or	[ Experimental ]
walk_list	[ Experimental ]

Constants

DIAGNOSTICS

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Experimental