Split visitor from expressions and introduce ASTPrint.

1 files changed, 30 insertions, 0 deletions

diff --git a/JSImpl/src/ASTPrinter.h b/JSImpl/src/ASTPrinter.h
new file mode 100644
index 0000000..bbfcd70
--- /dev/null
+++ b/JSImpl/src/ASTPrinter.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include "ExpressionVisitor.h"
+
+namespace std
+{
+class ostream;
+}
+
+class ASTPrinter : public ExpressionVisitor
+{
+public:
+	ASTPrinter(std::ostream& os);
+	~ASTPrinter() {}
+	virtual void Visit(BinaryExpression* e) = 0;
+	virtual void Visit(UnaryExpression* e) = 0;
+	virtual void Visit(LiteralExpression* e) = 0;
+	virtual void Visit(IdentifierExpression* e) = 0;
+	virtual void Visit(ListExpression* e) = 0;
+	virtual void Visit(VariableDefinitionExpression* e) = 0;
+	virtual void Visit(BlockStatement* e) = 0;
+	virtual void Visit(LabeledStatement* e) = 0;
+	virtual void Visit(IfStatement* e) = 0;
+	virtual void Visit(SwitchStatement* e) = 0;
+	virtual void Visit(WhileStatement* e) = 0;
+	virtual void Visit(ForStatement* e) = 0;
+	virtual void Visit(FunctionDeclaration* e) = 0;
+	virtual void Visit(TopStatements* e) = 0;
+	virtual void Visit(EmptyExpression* e) = 0;
+};