perf(es/minifier): Use u8 for remaining_depth (#10833)

CPunisher · web-flow · commit ed6956a46e1f · 2025-07-11T17:47:58.000Z
**Description:**

`u8` is enough for this field.

This PR reduces the size of `ExprCtx` from 12 bytes to 8 bytes. 8 bits (64 bits) is sufficient for now.
diff --git a/crates/swc_ecma_utils/src/lib.rs b/crates/swc_ecma_utils/src/lib.rs
@@ -705,7 +705,7 @@ pub struct ExprCtx {
     /// function should not operate and return the safe value.
     ///
     /// Default value is `4`
-    pub remaining_depth: u32,
+    pub remaining_depth: u8,
 }
 
 /// Extension methods for [Expr].

Original file line number	Diff line number	Diff line change
`@@ -705,7 +705,7 @@ pub struct ExprCtx {`
`705`	`705`	`/// function should not operate and return the safe value.`
`706`	`706`	`///`
`707`	`707`	/// Default value is `4`
`708`		`- pub remaining_depth: u32,`
	`708`	`+ pub remaining_depth: u8,`
`709`	`709`	`}`
`710`	`710`
`711`	`711`	`/// Extension methods for [Expr].`