1 files changed, 76 insertions, 0 deletions
diff --git a/ASTVisitor.h b/ASTVisitor.h
new file mode 100644
index 00000000..a68d76ae
--- /dev/null
+++ b/ASTVisitor.h
@@ -0,0 +1,76 @@
+#pragma once
+
+#include <libsolidity/ASTForward.h>
+#include <string>
+
+namespace dev {
+namespace solidity {
+
+class ASTVisitor {
+public:
+	/// These functions are called after a call to ASTNode::accept,
+	/// first visit, then (if visit returns true) recursively for all
+	/// child nodes in document order (exception for contracts) and then
+	/// endVisit.
+	virtual bool visit(ASTNode&) { return true; }
+	virtual bool visit(ContractDefinition&) { return true; }
+	virtual bool visit(StructDefinition&) { return true; }
+	virtual bool visit(ParameterList&) { return true; }
+	virtual bool visit(FunctionDefinition&) { return true; }
+	virtual bool visit(VariableDeclaration&) { return true; }
+	virtual bool visit(TypeName&) { return true; }
+	virtual bool visit(ElementaryTypeName&) { return true; }
+	virtual bool visit(UserDefinedTypeName&) { return true; }
+	virtual bool visit(Mapping&) { return true; }
+	virtual bool visit(Statement&) { return true; }
+	virtual bool visit(Block&) { return true; }
+	virtual bool visit(IfStatement&) { return true; }
+	virtual bool visit(BreakableStatement&) { return true; }
+	virtual bool visit(WhileStatement&) { return true; }
+	virtual bool visit(Continue&) { return true; }
+	virtual bool visit(Break&) { return true; }
+	virtual bool visit(Return&) { return true; }
+	virtual bool visit(VariableDefinition&) { return true; }
+	virtual bool visit(Expression&) { return true; }
+	virtual bool visit(Assignment&) { return true; }
+	virtual bool visit(UnaryOperation&) { return true; }
+	virtual bool visit(BinaryOperation&) { return true; }
+	virtual bool visit(FunctionCall&) { return true; }
+	virtual bool visit(MemberAccess&) { return true; }
+	virtual bool visit(IndexAccess&) { return true; }
+	virtual bool visit(PrimaryExpression&) { return true; }
+	virtual bool visit(ElementaryTypeNameExpression&) { return true; }
+	virtual bool visit(Literal&) { return true; }
+
+	virtual void endVisit(ASTNode&) { }
+	virtual void endVisit(ContractDefinition&) { }
+	virtual void endVisit(StructDefinition&) { }
+	virtual void endVisit(ParameterList&) { }
+	virtual void endVisit(FunctionDefinition&) { }
+	virtual void endVisit(VariableDeclaration&) { }
+	virtual void endVisit(TypeName&) { }
+	virtual void endVisit(ElementaryTypeName&) { }
+	virtual void endVisit(UserDefinedTypeName&) { }
+	virtual void endVisit(Mapping&) { }
+	virtual void endVisit(Statement&) { }
+	virtual void endVisit(Block&) { }
+	virtual void endVisit(IfStatement&) { }
+	virtual void endVisit(BreakableStatement&) { }
+	virtual void endVisit(WhileStatement&) { }
+	virtual void endVisit(Continue&) { }
+	virtual void endVisit(Break&) { }
+	virtual void endVisit(Return&) { }
+	virtual void endVisit(VariableDefinition&) { }
+	virtual void endVisit(Expression&) { }
+	virtual void endVisit(Assignment&) { }
+	virtual void endVisit(UnaryOperation&) { }
+	virtual void endVisit(BinaryOperation&) { }
+	virtual void endVisit(FunctionCall&) { }
+	virtual void endVisit(MemberAccess&) { }
+	virtual void endVisit(IndexAccess&) { }
+	virtual void endVisit(PrimaryExpression&) { }
+	virtual void endVisit(ElementaryTypeNameExpression&) { }
+	virtual void endVisit(Literal&) { }
+};
+
+} }