X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fprogramparser.h;h=72817e7ede06f8fe9607a2c17d8d99a503ea6c8e;hp=0a91c500b1a24884401614d7188953a77ae809a8;hb=ca52c492bd4f2fa1a1db3a85e50eaf7c43474830;hpb=6e6ee01b68056b23c6709d7f60396710dd7623b9

diff --git a/source/programparser.h b/source/programparser.h
index 0a91c500..72817e7e 100644
--- a/source/programparser.h
+++ b/source/programparser.h
@@ -3,6 +3,7 @@
 
 #include <deque>
 #include <map>
+#include <set>
 #include <string>
 #include <msp/io/base.h>
 #include "programsyntax.h"
@@ -13,26 +14,63 @@ namespace GL {
 class ProgramParser
 {
 private:
+	enum OperatorType
+	{
+		NO_OPERATOR,
+		BINARY,
+		PREFIX,
+		POSTFIX
+	};
+
+	enum Associativity
+	{
+		LEFT_TO_RIGHT,
+		RIGHT_TO_LEFT
+	};
+
+	struct Operator
+	{
+		const char token[4];
+		unsigned precedence;
+		OperatorType type;
+		Associativity assoc;
+	};
+
 	std::string source;
+	std::string source_name;
+	unsigned current_line;
 	std::string::const_iterator iter;
+	std::string::const_iterator source_end;
+	bool allow_preprocess;
+	bool allow_stage_change;
+	std::string last_token;
 	std::deque<std::string> next_tokens;
-	ProgramSyntax::Module main_module;
-	ProgramSyntax::Module *cur_module;
+	ProgramSyntax::Module *module;
+	ProgramSyntax::Stage *cur_stage;
+	std::set<std::string> declared_types;
+
+	static Operator operators[];
 
 public:
-	ProgramSyntax::Module &parse(const std::string &);
-	ProgramSyntax::Module &parse(IO::Base &);
+	ProgramParser();
+	~ProgramParser();
+
+	ProgramSyntax::Module &parse(const std::string &, const std::string &);
+	ProgramSyntax::Module &parse(IO::Base &, const std::string &);
 
 private:
-	void parse_source(ProgramSyntax::Module &);
+	void parse_source();
+
+	std::string format_error(const std::string &);
+	std::string format_syntax_error(const std::string &);
 
 	const std::string &peek_token(unsigned = 0);
-	std::string parse_token();
+	const std::string &parse_token();
 	std::string parse_token_();
 	std::string parse_identifier();
 	std::string parse_number();
 	std::string parse_other();
-	bool skip_comment_and_whitespace();
+	void skip_comment_and_whitespace();
 	void expect(const std::string &);
 	std::string expect_type();
 	std::string expect_identifier();
@@ -40,23 +78,36 @@ private:
 
 	static bool is_interface_qualifier(const std::string &);
 	static bool is_sampling_qualifier(const std::string &);
+	static bool is_interpolation_qualifier(const std::string &);
+	static bool is_precision_qualifier(const std::string &);
 	static bool is_qualifier(const std::string &);
 	static bool is_builtin_type(const std::string &);
 	bool is_type(const std::string &);
+	bool is_identifier(const std::string &);
+
+	void preprocess();
+	void preprocess_pragma();
+	void preprocess_pragma_msp();
+	void preprocess_stage();
 
-	ProgramSyntax::Node *parse_global_declaration();
-	ProgramSyntax::Node *parse_statement();
-	ProgramSyntax::Layout *parse_layout();
+	RefPtr<ProgramSyntax::Statement> parse_global_declaration();
+	RefPtr<ProgramSyntax::Statement> parse_statement();
+	RefPtr<ProgramSyntax::Import> parse_import();
+	RefPtr<ProgramSyntax::Precision> parse_precision();
+	RefPtr<ProgramSyntax::Layout> parse_layout();
 	void parse_block(ProgramSyntax::Block &, bool);
-	void parse_expression(ProgramSyntax::Expression &);
-	ProgramSyntax::StructDeclaration *parse_struct_declaration();
-	ProgramSyntax::VariableDeclaration *parse_variable_declaration();
-	ProgramSyntax::FunctionDeclaration *parse_function_declaration();
-	void parse_function_parameter_list(ProgramSyntax::FunctionDeclaration &);
-	ProgramSyntax::InterfaceBlock *parse_interface_block();
-	ProgramSyntax::Conditional *parse_conditional();
-	ProgramSyntax::Iteration *parse_iteration();
-	ProgramSyntax::Return *parse_return();
+	RefPtr<ProgramSyntax::Expression> parse_expression(unsigned = 0);
+	RefPtr<ProgramSyntax::BinaryExpression> parse_binary(const RefPtr<ProgramSyntax::Expression> &, const Operator *);
+	RefPtr<ProgramSyntax::FunctionCall> parse_function_call(const ProgramSyntax::VariableReference &);
+	RefPtr<ProgramSyntax::StructDeclaration> parse_struct_declaration();
+	RefPtr<ProgramSyntax::VariableDeclaration> parse_variable_declaration();
+	RefPtr<ProgramSyntax::FunctionDeclaration> parse_function_declaration();
+	RefPtr<ProgramSyntax::InterfaceBlock> parse_interface_block();
+	RefPtr<ProgramSyntax::Conditional> parse_conditional();
+	RefPtr<ProgramSyntax::Iteration> parse_for();
+	RefPtr<ProgramSyntax::Iteration> parse_while();
+	RefPtr<ProgramSyntax::Passthrough> parse_passthrough();
+	RefPtr<ProgramSyntax::Return> parse_return();
 };
 
 } // namespace GL