eb53ca3aad
When dealing with multiline spans that span few lines, show the complete
span instead of restricting to the first character of the first line.
For example, instead of:
```
% ./rustc foo.rs
error[E0277]: the trait bound `{integer}: std::ops::Add<()>` is not satisfied
--> foo.rs:13:9
|
13 | foo(1 + bar(x,
| ^ trait `{integer}: std::ops::Add<()>` not satisfied
|
```
show
```
% ./rustc foo.rs
error[E0277]: the trait bound `{integer}: std::ops::Add<()>` is not satisfied
--> foo.rs:13:9
|
13 | foo(1 + bar(x,
| ________^ starting here...
14 | | y),
| |_____________^ ...ending here: trait `{integer}: std::ops::Add<()>` not satisfied
|
```
150 lines
3.5 KiB
Rust
150 lines
3.5 KiB
Rust
// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! The Rust parser and macro expander.
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//!
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//! # Note
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//!
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//! This API is completely unstable and subject to change.
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#![crate_name = "syntax"]
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#![unstable(feature = "rustc_private", issue = "27812")]
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#![crate_type = "dylib"]
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#![crate_type = "rlib"]
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#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
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html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
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html_root_url = "https://doc.rust-lang.org/nightly/",
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test(attr(deny(warnings))))]
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#![cfg_attr(not(stage0), deny(warnings))]
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#![feature(associated_consts)]
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#![feature(const_fn)]
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#![feature(libc)]
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#![feature(rustc_private)]
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#![feature(staged_api)]
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#![feature(str_escape)]
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#![feature(unicode)]
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#![cfg_attr(stage0, feature(question_mark))]
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#![feature(rustc_diagnostic_macros)]
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#![feature(specialization)]
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#![cfg_attr(stage0, feature(dotdot_in_tuple_patterns))]
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extern crate core;
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extern crate serialize;
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extern crate term;
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extern crate libc;
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#[macro_use] extern crate log;
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#[macro_use] #[no_link] extern crate rustc_bitflags;
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extern crate rustc_unicode;
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pub extern crate rustc_errors as errors;
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extern crate syntax_pos;
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extern crate rustc_data_structures;
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extern crate serialize as rustc_serialize; // used by deriving
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// A variant of 'try!' that panics on an Err. This is used as a crutch on the
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// way towards a non-panic!-prone parser. It should be used for fatal parsing
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// errors; eventually we plan to convert all code using panictry to just use
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// normal try.
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// Exported for syntax_ext, not meant for general use.
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#[macro_export]
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macro_rules! panictry {
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($e:expr) => ({
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use std::result::Result::{Ok, Err};
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use errors::FatalError;
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match $e {
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Ok(e) => e,
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Err(mut e) => {
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e.emit();
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panic!(FatalError);
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}
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}
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})
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}
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#[macro_use]
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pub mod diagnostics {
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#[macro_use]
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pub mod macros;
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pub mod plugin;
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pub mod metadata;
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}
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// NB: This module needs to be declared first so diagnostics are
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// registered before they are used.
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pub mod diagnostic_list;
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pub mod util {
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pub mod interner;
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pub mod lev_distance;
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pub mod node_count;
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pub mod parser;
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#[cfg(test)]
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pub mod parser_testing;
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pub mod small_vector;
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pub mod move_map;
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mod thin_vec;
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pub use self::thin_vec::ThinVec;
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}
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pub mod json;
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pub mod syntax {
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pub use ext;
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pub use parse;
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pub use ast;
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}
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pub mod abi;
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pub mod ast;
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pub mod attr;
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pub mod codemap;
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#[macro_use]
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pub mod config;
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pub mod entry;
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pub mod feature_gate;
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pub mod fold;
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pub mod parse;
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pub mod ptr;
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pub mod show_span;
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pub mod std_inject;
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pub mod str;
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pub mod test;
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pub mod tokenstream;
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pub mod visit;
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pub mod print {
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pub mod pp;
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pub mod pprust;
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}
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pub mod ext {
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pub mod base;
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pub mod build;
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pub mod expand;
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pub mod placeholders;
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pub mod hygiene;
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pub mod proc_macro_shim;
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pub mod quote;
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pub mod source_util;
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pub mod tt {
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pub mod transcribe;
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pub mod macro_parser;
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pub mod macro_rules;
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}
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}
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#[cfg(test)]
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mod test_snippet;
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// __build_diagnostic_array! { libsyntax, DIAGNOSTICS }
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