doc: Runnable examples for log #16846
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| //! Assumes the binary is `main`: | ||
| //! | ||
| //! ```{.bash} | ||
| //! $ export RUST_LOG=main=error; ./main |
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In some shells this can be written RUST_LOG=main=error ./main, but I don't know if it is universal.
Also, you can set a global default: RUST_LOG=error ./main.
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Cool, it appears you are right.
Also use //! Instead of /*! in liblog.
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Simplified shell commands and rebased. |
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fix: incorrect handling of `use` and panic issue in `extract_module`. fix rust-lang#16826 This PR includes the following changes: 1. Simplify the implementation partially, removing many unnecessary loops and `clone()`. 2. When it is found that the top level of the selection contains a `use` statement, a copy of the `use` will be reinserted before extraction. (rust-lang#16826) 3. Fixed an issue during `extract_module`, where if the top level of the selected part contains `A` and `use A::B`, it caused a duplication of `use A`.
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It took far too long for me to realize how to get the logging macros to print. Also document with
//!instead of/*!.cc @steveklabnik