mirror of
https://github.com/swc-project/swc.git
synced 2024-11-25 22:34:04 +03:00
f2300dadbf
**Description:**
`dbg!()` output on ASTs is kinda verbose,
```rs
ExprStmt {
span: Span {
lo: BytePos(
37,
),
hi: BytePos(
50,
),
ctxt: #0,
},
expr: Lit(
Str(
Str {
span: Span {
lo: BytePos(
37,
),
hi: BytePos(
49,
),
ctxt: #0,
},
value: "use strict",
raw: Some(
"\"use strict\"",
),
},
),
),
}
```
A lot of the space is wasted on spans — 9 lines per span, even though
it's pretty much unimportant cruft. This PR changes that to just one
line per span:
```rs
ExprStmt {
span: 37..50#0,
expr: Lit(
Str(
Str {
span: 37..49#0,
value: "use strict",
raw: Some(
"\"use strict\"",
),
},
),
),
}
```
While not a statistically meaningful measurement, in my tests (sample
size = 1) this change reduces the `dbg!()` of a 1103-byte script from
5597 to 2885 lines, which is a 48% reduction. In `{:?}` mode it goes
from 40034 to 25457 chars, or 37% reduction.
|
||
|---|---|---|
| .. | ||
| src | ||
| tests | ||
| Cargo.toml | ||