Remove misleading nonexistant flag hint
`./mach build -d` does not report any errors.
`./mach test-tidy --faster` does not report any errors.
The change fixes#11197.
The change does not require tests because it is a small change that doesn't change any core functionality.
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Fix integer overflow in next_power_of_two
This causes a panic (debug) or incorrect results (release) when initializing a work queue with thread_count = 1.
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Use byte indices instead of char indices for text runs
Replace character indices with UTF-8 byte offsets throughout all code dealing with text runs. This eliminates a lot of complexity when converting from one to the other, and interoperates better with the rest of the Rust ecosystem.
For most code this is just a simple replacement of char indices with byte indices. In a few places like glyph storage and text fragment scanning, it also lets us get rid of code that existed only to map between bytes and chars.
Also includes some related fixes to text shaping, discovered while working on this conversion. See the commit messages for details.
r? @pcwalton
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Replace character indices with UTF-8 byte offsets throughout the code dealing
with text shaping and breaking. This eliminates a lot of complexity when
converting from one to the other, and interoperates better with the rest of
the Rust ecosystem.
This commit adds the `--profiler-trace-path` flag. When combined with `-p` to
enable profiling, it dumps a profile as a self-contained HTML file to the given
path. The profile visualizes the traced operations as a gant-chart style
timeline.
* Sections like `[dependencies.foo]` can be entries in a `[dependencies]`
section with the `{key = value}` syntax.
* Per-target dependencies can be expressed with more general `cfg(…)`
conditions instead of exact target triples:
https://github.com/rust-lang/cargo/pull/2328
Communicate a backtrace to the constellation when panicking.
Send a representation of the backtrace from a pipeline thread to the constellation in the case of panic. This is the next step in communicating the backtrace to the browser chrome (#10334).
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