--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compiler/PPCTokenGuard.st	Thu May 21 14:12:22 2015 +0100
@@ -0,0 +1,38 @@
+"{ Package: 'stx:goodies/petitparser/compiler' }"
+
+"{ NameSpace: Smalltalk }"
+
+Object subclass:#PPCTokenGuard
+	instanceVariableNames:'node'
+	classVariableNames:''
+	poolDictionaries:''
+	category:'PetitCompiler-Guards'
+!
+
+!PPCTokenGuard class methodsFor:'as yet unclassified'!
+
+on: node
+    ^ self new
+        node: node;
+        yourself
+! !
+
+!PPCTokenGuard methodsFor:'as yet unclassified'!
+
+firstToken
+    self assert: node firstSetWithTokens  size = 1.
+    ^ node firstSetWithTokens anyOne
+!
+
+makesSense
+    ^ node firstSetWithTokens size = 1 and: [ node firstSetWithTokens anyOne isTokenNode ]
+!
+
+node
+    ^ node
+!
+
+node: aPPCNode
+    node := aPPCNode
+! !
+