X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fprogramsyntax.h;h=3db059c4f4d79c4e6252537c5a1cfc27b90e223e;hp=8f72a0bdfc7258a4af9bdb048e0aad114b4a83a2;hb=16a9d75c8e124a0faf89c56533792cb97a214e37;hpb=70f9fe2964700fc199ab3cabb26f9b14d078c56b

diff --git a/source/programsyntax.h b/source/programsyntax.h
index 8f72a0bd..3db059c4 100644
--- a/source/programsyntax.h
+++ b/source/programsyntax.h
@@ -5,6 +5,12 @@
 #include <map>
 #include <string>
 #include <vector>
+#include <msp/core/refptr.h>
+#include "extension.h"
+#include "uniform.h"
+
+#pragma push_macro("interface")
+#undef interface
 
 namespace Msp {
 namespace GL {
@@ -24,32 +30,51 @@ public:
 };
 
 template<typename T>
-class NodePtr
+class NodePtr: public RefPtr<T>
 {
-private:
-	T *node;
-
 public:
-	NodePtr(T *n = 0): node(n) { }
-	NodePtr(const NodePtr &p): node(clone(p.node)) { }
-	NodePtr &operator=(const NodePtr &p) { delete node; node = clone(p.node); return *this; }
-	~NodePtr() { delete node; }
+	NodePtr() { }
+	NodePtr(T *p): RefPtr<T>(p) { }
+	NodePtr(const NodePtr &p): RefPtr<T>(p ? p->clone() : 0) { }
 
-private:
-	static T *clone(T *n) { return n ? n->clone() : 0; }
+	template<typename U>
+	NodePtr(const RefPtr<U> &p): RefPtr<T>(p) { }
 
+	template<typename U>
+	NodePtr(const NodePtr<U> &p): RefPtr<T>(p ? p->clone() : 0) { }
+};
+
+template<typename C>
+class NodeContainer: public C
+{
 public:
-	T *operator->() { return node; }
-	const T *operator->() const { return node; }
-	operator void *() const { return node; }
+	NodeContainer() { }
+	NodeContainer(const NodeContainer &);
 };
 
+template<typename T>
+class NodeList: public NodeContainer<std::list<RefPtr<T> > >
+{ };
+
+template<typename T>
+class NodeArray: public NodeContainer<std::vector<RefPtr<T> > >
+{ };
+
+struct StructDeclaration;
 struct VariableDeclaration;
+struct FunctionDeclaration;
+
+struct Statement: Node
+{
+	virtual Statement *clone() const = 0;
+};
 
 struct Block: Node
 {
-	std::list<NodePtr<Node> > body;
+	NodeList<Statement> body;
 	bool use_braces;
+	std::map<std::string, StructDeclaration *> types;
+	std::map<std::string, VariableDeclaration *> variables;
 
 	Block();
 
@@ -81,6 +106,9 @@ struct ParenthesizedExpression: Expression
 struct VariableReference: Expression
 {
 	std::string name;
+	VariableDeclaration *declaration;
+
+	VariableReference();
 
 	virtual VariableReference *clone() const { return new VariableReference(*this); }
 	virtual void visit(NodeVisitor &);
@@ -90,6 +118,7 @@ struct MemberAccess: Expression
 {
 	NodePtr<Expression> left;
 	std::string member;
+	VariableDeclaration *declaration;
 
 	virtual MemberAccess *clone() const { return new MemberAccess(*this); }
 	virtual void visit(NodeVisitor &);
@@ -113,19 +142,28 @@ struct BinaryExpression: Expression
 	std::string oper;
 	NodePtr<Expression> right;
 	std::string after;
-	bool assignment;
-
-	BinaryExpression();
 
 	virtual BinaryExpression *clone() const { return new BinaryExpression(*this); }
 	virtual void visit(NodeVisitor &);
 };
 
+struct Assignment: BinaryExpression
+{
+	bool self_referencing;
+	VariableDeclaration *target_declaration;
+
+	Assignment();
+
+	virtual Assignment *clone() const { return new Assignment(*this); }
+	virtual void visit(NodeVisitor &);
+};
+
 struct FunctionCall: Expression
 {
 	std::string name;
+	FunctionDeclaration *declaration;
 	bool constructor;
-	std::vector<NodePtr<Expression> > arguments;
+	NodeArray<Expression> arguments;
 
 	FunctionCall();
 
@@ -133,7 +171,7 @@ struct FunctionCall: Expression
 	virtual void visit(NodeVisitor &);
 };
 
-struct ExpressionStatement: Node
+struct ExpressionStatement: Statement
 {
 	NodePtr<Expression> expression;
 
@@ -141,22 +179,48 @@ struct ExpressionStatement: Node
 	virtual void visit(NodeVisitor &);
 };
 
+struct Import: Statement
+{
+	std::string module;
+
+	virtual Import *clone() const { return new Import(*this); }
+	virtual void visit(NodeVisitor &);
+};
+
+struct Precision: Statement
+{
+	std::string precision;
+	std::string type;
+
+	virtual Precision *clone() const { return new Precision(*this); }
+	virtual void visit(NodeVisitor &);
+};
+
 struct Layout: Node
 {
 	struct Qualifier
 	{
+		// TODO the standard calls this name, not identifier
 		std::string identifier;
 		std::string value;
 	};
 
 	std::vector<Qualifier> qualifiers;
-	std::string interface;
 
 	virtual Layout *clone() const { return new Layout(*this); }
 	virtual void visit(NodeVisitor &);
 };
 
-struct StructDeclaration: Node
+struct InterfaceLayout: Statement
+{
+	std::string interface;
+	Layout layout;
+
+	virtual InterfaceLayout *clone() const { return new InterfaceLayout(*this); }
+	virtual void visit(NodeVisitor &);
+};
+
+struct StructDeclaration: Statement
 {
 	std::string name;
 	Block members;
@@ -167,16 +231,21 @@ struct StructDeclaration: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct VariableDeclaration: Node
+struct VariableDeclaration: Statement
 {
 	bool constant;
 	std::string sampling;
+	std::string interpolation;
 	std::string interface;
+	std::string precision;
 	std::string type;
+	StructDeclaration *type_declaration;
 	std::string name;
 	bool array;
 	NodePtr<Expression> array_size;
 	NodePtr<Expression> init_expression;
+	VariableDeclaration *linked_declaration;
+	NodePtr<Layout> layout;
 
 	VariableDeclaration();
 
@@ -184,11 +253,13 @@ struct VariableDeclaration: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct InterfaceBlock: Node
+struct InterfaceBlock: Statement
 {
 	std::string interface;
 	std::string name;
 	Block members;
+	std::string instance_name;
+	bool array;
 
 	InterfaceBlock();
 
@@ -196,23 +267,24 @@ struct InterfaceBlock: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct FunctionDeclaration: Node
+struct FunctionDeclaration: Statement
 {
 	std::string return_type;
 	std::string name;
-	std::vector<NodePtr<VariableDeclaration> > parameters;
-	bool definition;
+	NodeArray<VariableDeclaration> parameters;
+	FunctionDeclaration *definition;
 	Block body;
 
 	FunctionDeclaration();
+	FunctionDeclaration(const FunctionDeclaration &);
 
 	virtual FunctionDeclaration *clone() const { return new FunctionDeclaration(*this); }
 	virtual void visit(NodeVisitor &);
 };
 
-struct Conditional: Node
+struct Conditional: Statement
 {
-	Expression *condition;
+	NodePtr<Expression> condition;
 	Block body;
 	Block else_body;
 
@@ -220,7 +292,7 @@ struct Conditional: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Iteration: Node
+struct Iteration: Statement
 {
 	NodePtr<Node> init_statement;
 	NodePtr<Expression> condition;
@@ -231,7 +303,15 @@ struct Iteration: Node
 	virtual void visit(NodeVisitor &);
 };
 
-struct Return: Node
+struct Passthrough: Statement
+{
+	NodePtr<Expression> subscript;
+
+	virtual Passthrough *clone() const { return new Passthrough(*this); }
+	virtual void visit(NodeVisitor &);
+};
+
+struct Return: Statement
 {
 	NodePtr<Expression> expression;
 
@@ -239,6 +319,14 @@ struct Return: Node
 	virtual void visit(NodeVisitor &);
 };
 
+struct Jump: Statement
+{
+	std::string keyword;
+
+	virtual Jump *clone() const { return new Jump(*this); }
+	virtual void visit(NodeVisitor &);
+};
+
 struct NodeVisitor
 {
 	virtual ~NodeVisitor() { }
@@ -250,42 +338,71 @@ struct NodeVisitor
 	virtual void visit(MemberAccess &) { }
 	virtual void visit(UnaryExpression &) { }
 	virtual void visit(BinaryExpression &) { }
+	virtual void visit(Assignment &);
 	virtual void visit(FunctionCall &) { }
 	virtual void visit(ExpressionStatement &) { }
+	virtual void visit(Import &) { }
+	virtual void visit(Precision &) { }
 	virtual void visit(Layout &) { }
+	virtual void visit(InterfaceLayout &) { }
 	virtual void visit(StructDeclaration &) { }
 	virtual void visit(VariableDeclaration &) { }
 	virtual void visit(InterfaceBlock &) { }
 	virtual void visit(FunctionDeclaration &) { }
 	virtual void visit(Conditional &) { }
 	virtual void visit(Iteration &) { }
+	virtual void visit(Passthrough &) { }
 	virtual void visit(Return &) { }
+	virtual void visit(Jump &) { }
 };
 
-enum ContextType
+struct TraversingVisitor: NodeVisitor
 {
-	GLOBAL,
+	using NodeVisitor::visit;
+	virtual void visit(Block &);
+	virtual void visit(ParenthesizedExpression &);
+	virtual void visit(MemberAccess &);
+	virtual void visit(UnaryExpression &);
+	virtual void visit(BinaryExpression &);
+	virtual void visit(FunctionCall &);
+	virtual void visit(ExpressionStatement &);
+	virtual void visit(InterfaceLayout &);
+	virtual void visit(StructDeclaration &);
+	virtual void visit(VariableDeclaration &);
+	virtual void visit(InterfaceBlock &);
+	virtual void visit(FunctionDeclaration &);
+	virtual void visit(Conditional &);
+	virtual void visit(Iteration &);
+	virtual void visit(Passthrough &);
+	virtual void visit(Return &);
+};
+
+enum StageType
+{
+	SHARED,
 	VERTEX,
 	GEOMETRY,
 	FRAGMENT
 };
 
-struct Context
+struct Stage
 {
-	ContextType type;
-	bool present;
+	StageType type;
+	Stage *previous;
 	ProgramSyntax::Block content;
+	std::map<std::string, VariableDeclaration *> in_variables;
+	std::map<std::string, VariableDeclaration *> out_variables;
+	std::map<std::string, unsigned> locations;
+	Version required_version;
+	std::vector<const Extension *> required_extensions;
 
-	Context(ContextType);
+	Stage(StageType);
 };
 
 struct Module
 {
-	Context global_context;
-	Context vertex_context;
-	Context geometry_context;
-	Context fragment_context;
-	std::map<std::string, StructDeclaration *> structs;
+	Stage shared;
+	std::list<Stage> stages;
 
 	Module();
 };
@@ -294,4 +411,6 @@ struct Module
 } // namespace GL
 } // namespace Msp
 
+#pragma pop_macro("interface")
+
 #endif