diff options
Diffstat (limited to 'src/libsyntax/codemap.rs')
| -rw-r--r-- | src/libsyntax/codemap.rs | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/src/libsyntax/codemap.rs b/src/libsyntax/codemap.rs index e61afb8b193..5eac6546c6b 100644 --- a/src/libsyntax/codemap.rs +++ b/src/libsyntax/codemap.rs @@ -10,19 +10,24 @@ // // ignore-lexer-test FIXME #15679 -//! 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. +//! 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. pub use self::MacroFormat::*; -use serialize::{Encodable, Decodable, Encoder, Decoder}; use std::cell::RefCell; +use std::num::ToPrimitive; +use std::ops::{Add, Sub}; use std::rc::Rc; + use libc::c_uint; +use serialize::{Encodable, Decodable, Encoder, Decoder}; pub trait Pos { fn from_uint(n: uint) -> Self; |