Move the GLSL compiler entirely in its own namespace

[libs/gl.git] / source / glsl / parser.h

diff --git a/source/glsl/parser.h b/source/glsl/parser.h
new file mode 100644 (file)
index 0000000..c9588bf
--- /dev/null
+++ b/source/glsl/parser.h
@@ -0,0 +1,120 @@
+#ifndef MSP_GL_SL_PARSER_H_
+#define MSP_GL_SL_PARSER_H_
+
+#include <deque>
+#include <map>
+#include <set>
+#include <string>
+#include <msp/io/base.h>
+#include "syntax.h"
+
+namespace Msp {
+namespace GL {
+namespace SL {
+
+class Parser
+{
+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 source_index;
+       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;
+       Module *module;
+       Stage *cur_stage;
+       std::set<std::string> declared_types;
+
+       static Operator operators[];
+
+public:
+       Parser();
+       ~Parser();
+
+       Module &parse(const std::string &, const std::string &, unsigned = 0);
+       Module &parse(IO::Base &, const std::string &, unsigned = 0);
+
+private:
+       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);
+       const std::string &parse_token();
+       std::string parse_token_();
+       std::string parse_identifier();
+       std::string parse_number();
+       std::string parse_other();
+       void skip_comment_and_whitespace();
+       void expect(const std::string &);
+       std::string expect_type();
+       std::string expect_identifier();
+       bool check(const std::string &);
+
+       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_version();
+       void preprocess_pragma();
+       void preprocess_pragma_msp();
+       void preprocess_stage();
+
+       RefPtr<Statement> parse_global_declaration();
+       RefPtr<Statement> parse_statement();
+       RefPtr<Import> parse_import();
+       RefPtr<Precision> parse_precision();
+       RefPtr<Layout> parse_layout();
+       void parse_block(Block &, bool);
+       RefPtr<Expression> parse_expression(unsigned = 0);
+       RefPtr<BinaryExpression> parse_binary(const RefPtr<Expression> &, const Operator *);
+       RefPtr<FunctionCall> parse_function_call(const VariableReference &);
+       RefPtr<StructDeclaration> parse_struct_declaration();
+       RefPtr<VariableDeclaration> parse_variable_declaration();
+       RefPtr<FunctionDeclaration> parse_function_declaration();
+       RefPtr<InterfaceBlock> parse_interface_block();
+       RefPtr<Conditional> parse_conditional();
+       RefPtr<Iteration> parse_for();
+       RefPtr<Iteration> parse_while();
+       RefPtr<Passthrough> parse_passthrough();
+       RefPtr<Return> parse_return();
+};
+
+} // namespace SL
+} // namespace GL
+} // namespace Msp
+
+#endif