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auto merge of #13460 : SimonSapin/rust/patch-9, r=alexcrichton

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bors 2014-04-12 20:36:58 -07:00
commit e4178db07c
1 changed files with 3 additions and 3 deletions
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src/liblog/lib.rs
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@ -40,12 +40,12 @@ There are five macros that the logging subsystem uses:
* `warn!(...)` - a macro hard-wired to the log level of `WARN` * `warn!(...)` - a macro hard-wired to the log level of `WARN`
* `error!(...)` - a macro hard-wired to the log level of `ERROR` * `error!(...)` - a macro hard-wired to the log level of `ERROR`
All of these macros use std::the same style of syntax as the `format!` syntax All of these macros use the same style of syntax as the `format!` syntax
extension. Details about the syntax can be found in the documentation of extension. Details about the syntax can be found in the documentation of
`std::fmt` along with the Rust tutorial/manual. `std::fmt` along with the Rust tutorial/manual.
If you want to check at runtime if a given logging level is enabled (e.g. if the If you want to check at runtime if a given logging level is enabled (e.g. if the
information you would want to log is expensive to produce), you can use std::the information you would want to log is expensive to produce), you can use the
following macro: following macro:
* `log_enabled!(level)` - returns true if logging of the given level is enabled * `log_enabled!(level)` - returns true if logging of the given level is enabled
@ -63,7 +63,7 @@ path::to::module=log_level
The path to the module is rooted in the name of the crate it was compiled for, The path to the module is rooted in the name of the crate it was compiled for,
so if your program is contained in a file `hello.rs`, for example, to turn on so if your program is contained in a file `hello.rs`, for example, to turn on
logging for this file you would use std::a value of `RUST_LOG=hello`. logging for this file you would use a value of `RUST_LOG=hello`.
Furthermore, this path is a prefix-search, so all modules nested in the Furthermore, this path is a prefix-search, so all modules nested in the
specified module will also have logging enabled. specified module will also have logging enabled.