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Auto merge of #133134 - Walnut356:synth_prov, r=Mark-Simulacrum

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Don't use a SyntheticProvider for literally every type

Replaces a glob regex with individualized imports for each standard library type. This improves debugger performance by quite a bit when populating lots of values with lots of fields

With the glob, afaik every single value of every single type that the debugger renders is run through a python function that does quite a few string comparisons (i plan to fix those next) to determine the SyntheticProvider to use.  It looks like DefaultSyntheticProvider's functions internally call the liblldb c++ functions, which ends up with identical behavior to not using a SyntheticProvider at all, except you have extra python round trips slowing things down.

These sample vidoes were run on x86-64-pc-windows-gnu. `vect` is a 1000 element `Vec<Big>`, `Big` contains a dozen or so `Small`, and `Small` contains a dozen or so `[i32; 5]`

Before:

https://github.com/user-attachments/assets/07c31fe7-e126-4c2e-8ae9-cfe36e351d3f

After:

https://github.com/user-attachments/assets/6c0d1a45-1ffe-46de-95a0-5dbe59a173b5

---

try-job: aarch64-apple
This commit is contained in:
bors 2024-12-08 19:30:33 +00:00
commit 4d669fb34e
1 changed files with 22 additions and 1 deletions
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23
src/etc/lldb_commands
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@ -1,4 +1,25 @@
type synthetic add -l lldb_lookup.synthetic_lookup -x ".*" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)String$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?str$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?\\[.+\\]$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::ffi::([a-z_]+::)+)OsString$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)Vec<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)VecDeque<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)BTreeSet<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)BTreeMap<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::collections::([a-z_]+::)+)HashMap<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::collections::([a-z_]+::)+)HashSet<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)Rc<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)Arc<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)Cell<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)Ref<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)RefMut<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)RefCell<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)NonZero<.+>$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^core::num::([a-z_]+::)*NonZero.+$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::([a-z_]+::)+)PathBuf$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust
type synthetic add -l lldb_lookup.synthetic_lookup -x "^(.*)$" --category Rust
type summary add -F _ -e -x -h "^.*$" --category Rust
type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust
type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?str$" --category Rust
type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?\\[.+\\]$" --category Rust