move JumpEvent out of compiler.cpp

src/codegen/compiler/frame.h

@@ -0,0 +1,75 @@
+/* Copyright (c) 2008-2012, Avian Contributors
+
+   Permission to use, copy, modify, and/or distribute this software
+   for any purpose with or without fee is hereby granted, provided
+   that the above copyright notice and this permission notice appear
+   in all copies.
+
+   There is NO WARRANTY for this software.  See license.txt for
+   details. */
+
+#ifndef AVIAN_CODEGEN_COMPILER_FRAME_H
+#define AVIAN_CODEGEN_COMPILER_FRAME_H
+
+namespace avian {
+namespace codegen {
+namespace compiler {
+
+unsigned totalFrameSize(Context* c);
+
+int frameIndex(Context* c, int localIndex);
+
+unsigned frameIndexToOffset(Context* c, unsigned frameIndex);
+
+unsigned offsetToFrameIndex(Context* c, unsigned offset);
+
+unsigned frameBase(Context* c);
+
+class FrameIterator {
+ public:
+  class Element {
+   public:
+    Element(Value* value, unsigned localIndex);
+
+    int frameIndex(Context* c);
+
+    Value* const value;
+    const unsigned localIndex;
+  };
+
+  FrameIterator(Context* c, Stack* stack, Local* locals,
+                bool includeEmpty = false);
+
+  bool hasMore();
+
+  Element next(Context* c);
+
+  Stack* stack;
+  Local* locals;
+  int localIndex;
+  bool includeEmpty;
+};
+
+class Local {
+ public:
+  Value* value;
+};
+
+class Stack {
+ public:
+  Stack(unsigned index, Value* value, Stack* next):
+    index(index), value(value), next(next)
+  { }
+
+  unsigned index;
+  Value* value;
+  Stack* next;
+};
+
+Stack* stack(Context* c, Value* value, Stack* next);
+
+} // namespace compiler
+} // namespace codegen
+} // namespace avian
+
+#endif // AVIAN_CODEGEN_COMPILER_FRAME_H