Document -Zcache-proc-macros

Kobzol · Kobzol · commit d552bac8ab42 · 2026-01-16T22:04:53.000+01:00
diff --git a/src/doc/unstable-book/src/compiler-flags/cache-proc-macros.md b/src/doc/unstable-book/src/compiler-flags/cache-proc-macros.md
@@ -0,0 +1,3 @@
+## `cache-proc-macros`
+
+This option instructs `rustc` to cache (derive) proc-macro invocations using the incremental system. Note that this can be unsouned - we currently do not check if the macro invocation is actually "cacheable" or not.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	+## `cache-proc-macros`
	`2`	`+`
	`3`	+This option instructs `rustc` to cache (derive) proc-macro invocations using the incremental system. Note that this can be unsouned - we currently do not check if the macro invocation is actually "cacheable" or not.