Make setOpOverloadAssign private, add comment

ntrel · ntrel · commit 5d824f240fed · 2026-01-23T11:58:50.000Z
diff --git a/compiler/src/dmd/expressionsem.d b/compiler/src/dmd/expressionsem.d
@@ -5301,7 +5301,8 @@ private extern (C++) final class ExpressionSemanticVisitor : Visitor
         setError();
     }
 
-    void setOpOverloadAssign(Expression e)
+    // `e` calls opAssign, opOpAssign, opUnary!++, opUnary!-- when lowered from an assignment
+    private void setOpOverloadAssign(Expression e)
     {
         result = e;
         auto ce = e.isCallExp();

Original file line number	Diff line number	Diff line change
`@@ -5301,7 +5301,8 @@ private extern (C++) final class ExpressionSemanticVisitor : Visitor`
`5301`	`5301`	`setError();`
`5302`	`5302`	`}`
`5303`	`5303`
`5304`		`- void setOpOverloadAssign(Expression e)`
	`5304`	+ // `e` calls opAssign, opOpAssign, opUnary!++, opUnary!-- when lowered from an assignment
	`5305`	`+ private void setOpOverloadAssign(Expression e)`
`5305`	`5306`	`{`
`5306`	`5307`	`result = e;`
`5307`	`5308`	`auto ce = e.isCallExp();`