objc: anchor ivarRegex so malformed names are rejected (#513)

MatchString does substring matching, so the unanchored pattern let
names like Bar or 'foo bar' through RegisterClass validation. Anchor
it for a full-string match.

Closes #508

commit: 7e3b3624cbe3f375762e621900c61f58d19f8c41
author: Hiroki KUMAZAKI · 47d ago · 2026-09-05 12:37 UTC
committer: GitHub · 47d ago · 2026-09-05 12:37 UTC
parent: 63002e0
signature: GPG UnverifiedB5690EEEBB952194 The key is unknown
refs: tag: v0.12.0-alpha

1 file · +1 -1

M objc/objc_runtime_darwin.go +1 -1


@@ -269,7 +269,7 @@ type FieldDef struct {
269	269		}
270	270
271	271		// ivarRegex checks to make sure the Ivar is correctly formatted
272		-	var ivarRegex = regexp.MustCompile("[a-z_][a-zA-Z0-9_]*")
	272	+	var ivarRegex = regexp.MustCompile(`^[a-z_][a-zA-Z0-9_]*$`)
273	273
274	274		// RegisterClass takes the name of the class to create, the superclass, a list of protocols this class
275	275		// implements, a list of fields this class has and a list of methods. It returns the created class or an error


@@ -269,7 +269,7 @@ type FieldDef struct {
269		}	269		}
270			270
271		// ivarRegex checks to make sure the Ivar is correctly formatted	271		// ivarRegex checks to make sure the Ivar is correctly formatted
272	-	var ivarRegex = regexp.MustCompile("[a-z_][a-zA-Z0-9_]*")	272	+	var ivarRegex = regexp.MustCompile(`^[a-z_][a-zA-Z0-9_]*$`)
273			273
274		// RegisterClass takes the name of the class to create, the superclass, a list of protocols this class	274		// RegisterClass takes the name of the class to create, the superclass, a list of protocols this class
275		// implements, a list of fields this class has and a list of methods. It returns the created class or an error	275		// implements, a list of fields this class has and a list of methods. It returns the created class or an error