--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compiler/PPCCompilationContext.st	Tue Aug 25 01:30:32 2015 +0100
@@ -0,0 +1,47 @@
+"{ Package: 'stx:goodies/petitparser/compiler' }"
+
+"{ NameSpace: Smalltalk }"
+
+Object subclass:#PPCCompilationContext
+	instanceVariableNames:'parserClass scannerClass'
+	classVariableNames:''
+	poolDictionaries:''
+	category:'PetitCompiler-Core'
+!
+
+!PPCCompilationContext class methodsFor:'instance creation'!
+
+new
+    "return an initialized instance"
+
+    ^ self basicNew initialize.
+! !
+
+!PPCCompilationContext methodsFor:'accessing'!
+
+parserClass
+    "Return parser class as PPCClass"
+
+    parserClass isNil ifTrue:[
+        parserClass := PPCClass new.
+    ].
+    ^ parserClass
+
+    "Created: / 24-08-2015 / 23:58:53 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+!
+
+scannerClass
+    "Return scanner class as PPCClass"
+
+    scannerClass isNil ifTrue:[
+        scannerClass := PPCClass new.
+        "Both parser class and scanner class must share the
+         same ID generator in order to to use same names 
+         for tokens."
+        scannerClass idGen: self parserClass idGen
+    ].
+    ^ scannerClass
+
+    "Created: / 24-08-2015 / 23:59:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"
+! !
+