Optimize ReifyQuotes#mayChange

smarter · smarter · commit 2ebf138651ba · 2018-04-06T00:24:57.000+02:00
diff --git a/compiler/src/dotty/tools/dotc/transform/ReifyQuotes.scala b/compiler/src/dotty/tools/dotc/transform/ReifyQuotes.scala
@@ -620,7 +620,8 @@ class ReifyQuotes extends MacroTransformWithImplicits with InfoTransformer {
     transform(tp)
   }
 
-  override protected def mayChange(sym: Symbol)(implicit ctx: Context): Boolean = sym.is(Macro)
+  override protected def mayChange(sym: Symbol)(implicit ctx: Context): Boolean =
+    ctx.compilationUnit.containsQuotesOrSplices && sym.isTerm && sym.is(Macro)
 
   /** Returns the type of the compiled macro as a lambda: Seq[Any] => Object */
   private def macroReturnType(implicit ctx: Context): Type =

Original file line number	Diff line number	Diff line change
`@@ -620,7 +620,8 @@ class ReifyQuotes extends MacroTransformWithImplicits with InfoTransformer {`
`620`	`620`	`transform(tp)`
`621`	`621`	`}`
`622`	`622`
`623`		`- override protected def mayChange(sym: Symbol)(implicit ctx: Context): Boolean = sym.is(Macro)`
	`623`	`+ override protected def mayChange(sym: Symbol)(implicit ctx: Context): Boolean =`
	`624`	`+ ctx.compilationUnit.containsQuotesOrSplices && sym.isTerm && sym.is(Macro)`
`624`	`625`
`625`	`626`	`/** Returns the type of the compiled macro as a lambda: Seq[Any] => Object */`
`626`	`627`	`private def macroReturnType(implicit ctx: Context): Type =`