We see that a lot in the fluent style. For example:
```
font-size: Typography.body.font-size;
```
Where Typography.body is a contant expression define as
```
out property <TextStyle> body: {
font-size: 14 * 0.0769rem,
font-weight: regular-font-weight
};
```
But because this first converts from an annonymous tuple struct to a
named struct, the const propagation used to be confused. Now with this
patch it is properly simplified
Before this change
cargo run -p slint-compiler -- examples/printerdemo_mcu/ui/printerdemo.slint -f rust | rustfmt | wc
38643 84506 1925846
cargo run -p slint-compiler -- examples/gallery/gallery.slint -f rust | rustfmt | wc
103210 224427 5291034
After this change
cargo run -p slint-compiler -- examples/printerdemo_mcu/ui/printerdemo.slint -f rust | rustfmt | wc
38629 84473 1924995
cargo run -p slint-compiler -- examples/gallery/gallery.slint -f rust | rustfmt | wc
102628 222423 5261760
These are two different concept, and it is confusing to keep them in the
same enum
We want to support component without any base element, and Void is
already used for global component, so do this refactoring before
state info properties are special and cannot simply be inlined or set
(because we need to record the time it was changed and stuff)
So disable the optimization for now.
In fact, what could be done is to remove the state entirely if the state property
is constant. But that change is a bit more involved
This patch does:
- Don't inline const state property
- Don't generate a call to .set in the generated code
- Also allowed to debug the expression with a context from the generator
(added T generic parameter to the pretty printer)
Fix panic reported in https://github.com/slint-ui/slint/issues/1327#issuecomment-1151244049
Move "internal" crates into the `internal` directory. This first batch
includes most of sixtyfps_runtime but leaves the rendering backends
alone for now.
pre-commit applied some cleanups to the moved files:
- Consistent newline at end of file policy
- trimming trailing whitespace
- Formatting Cargo.toml files.
2022-01-31 16:00:50 +01:00
Renamed from sixtyfps_compiler/passes/const_propagation.rs (Browse further)
