X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fprogramsyntax.h;h=3db059c4f4d79c4e6252537c5a1cfc27b90e223e;hp=1f26bc568800e1f9374cb0f4b9e20647442d6804;hb=16a9d75c8e124a0faf89c56533792cb97a214e37;hpb=c041ea998569f24b2af9c5af47dffd337ff78146

diff --git a/source/programsyntax.h b/source/programsyntax.h
index 1f26bc56..3db059c4 100644
--- a/source/programsyntax.h
+++ b/source/programsyntax.h
@@ -64,9 +64,14 @@ struct StructDeclaration;
 struct VariableDeclaration;
 struct FunctionDeclaration;
 
+struct Statement: Node
+{
+	virtual Statement *clone() const = 0;
+};
+
 struct Block: Node
 {
-	NodeList<Node> body;
+	NodeList<Statement> body;
 	bool use_braces;
 	std::map<std::string, StructDeclaration *> types;
 	std::map<std::string, VariableDeclaration *> variables;
@@ -166,7 +171,7 @@ struct FunctionCall: Expression
 	virtual void visit(NodeVisitor &);
 };
 
-struct ExpressionStatement: Node
+struct ExpressionStatement: Statement
 {
 	NodePtr<Expression> expression;
 
@@ -174,7 +179,7 @@ struct ExpressionStatement: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Import: Node
+struct Import: Statement
 {
 	std::string module;
 
@@ -182,7 +187,7 @@ struct Import: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Precision: Node
+struct Precision: Statement
 {
 	std::string precision;
 	std::string type;
@@ -206,7 +211,7 @@ struct Layout: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct InterfaceLayout: Node
+struct InterfaceLayout: Statement
 {
 	std::string interface;
 	Layout layout;
@@ -215,7 +220,7 @@ struct InterfaceLayout: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct StructDeclaration: Node
+struct StructDeclaration: Statement
 {
 	std::string name;
 	Block members;
@@ -226,7 +231,7 @@ struct StructDeclaration: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct VariableDeclaration: Node
+struct VariableDeclaration: Statement
 {
 	bool constant;
 	std::string sampling;
@@ -248,7 +253,7 @@ struct VariableDeclaration: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct InterfaceBlock: Node
+struct InterfaceBlock: Statement
 {
 	std::string interface;
 	std::string name;
@@ -262,7 +267,7 @@ struct InterfaceBlock: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct FunctionDeclaration: Node
+struct FunctionDeclaration: Statement
 {
 	std::string return_type;
 	std::string name;
@@ -277,7 +282,7 @@ struct FunctionDeclaration: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Conditional: Node
+struct Conditional: Statement
 {
 	NodePtr<Expression> condition;
 	Block body;
@@ -287,7 +292,7 @@ struct Conditional: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Iteration: Node
+struct Iteration: Statement
 {
 	NodePtr<Node> init_statement;
 	NodePtr<Expression> condition;
@@ -298,7 +303,7 @@ struct Iteration: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Passthrough: Node
+struct Passthrough: Statement
 {
 	NodePtr<Expression> subscript;
 
@@ -306,7 +311,7 @@ struct Passthrough: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Return: Node
+struct Return: Statement
 {
 	NodePtr<Expression> expression;
 
@@ -314,7 +319,7 @@ struct Return: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Jump: Node
+struct Jump: Statement
 {
 	std::string keyword;