diff options
Diffstat (limited to 'mesalib/src/glsl/glsl_symbol_table.h')
-rw-r--r-- | mesalib/src/glsl/glsl_symbol_table.h | 250 |
1 files changed, 124 insertions, 126 deletions
diff --git a/mesalib/src/glsl/glsl_symbol_table.h b/mesalib/src/glsl/glsl_symbol_table.h index f48e9406e..637bc033b 100644 --- a/mesalib/src/glsl/glsl_symbol_table.h +++ b/mesalib/src/glsl/glsl_symbol_table.h @@ -1,126 +1,124 @@ -/* -*- c++ -*- */
-/*
- * Copyright © 2010 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#pragma once
-#ifndef GLSL_SYMBOL_TABLE
-#define GLSL_SYMBOL_TABLE
-
-#include <new>
-
-extern "C" {
-#include "program/symbol_table.h"
-}
-#include "ir.h"
-#include "glsl_types.h"
-
-class symbol_table_entry;
-
-/**
- * Facade class for _mesa_symbol_table
- *
- * Wraps the existing \c _mesa_symbol_table data structure to enforce some
- * type safe and some symbol table invariants.
- */
-struct glsl_symbol_table {
-private:
- static int
- _glsl_symbol_table_destructor (glsl_symbol_table *table)
- {
- table->~glsl_symbol_table();
-
- return 0;
- }
-
-public:
- /* Callers of this talloc-based new need not call delete. It's
- * easier to just talloc_free 'ctx' (or any of its ancestors). */
- static void* operator new(size_t size, void *ctx)
- {
- void *table;
-
- table = talloc_size(ctx, size);
- assert(table != NULL);
-
- talloc_set_destructor(table, (int (*)(void*)) _glsl_symbol_table_destructor);
-
- return table;
- }
-
- /* If the user *does* call delete, that's OK, we will just
- * talloc_free in that case. Here, C++ will have already called the
- * destructor so tell talloc not to do that again. */
- static void operator delete(void *table)
- {
- talloc_set_destructor(table, NULL);
- talloc_free(table);
- }
-
- glsl_symbol_table();
- ~glsl_symbol_table();
-
- unsigned int language_version;
-
- void push_scope();
- void pop_scope();
-
- /**
- * Determine whether a name was declared at the current scope
- */
- bool name_declared_this_scope(const char *name);
-
- /**
- * \name Methods to add symbols to the table
- *
- * There is some temptation to rename all these functions to \c add_symbol
- * or similar. However, this breaks symmetry with the getter functions and
- * reduces the clarity of the intention of code that uses these methods.
- */
- /*@{*/
- bool add_variable(ir_variable *v);
- bool add_type(const char *name, const glsl_type *t);
- bool add_function(ir_function *f);
- /*@}*/
-
- /**
- * Add an function at global scope without checking for scoping conflicts.
- */
- void add_global_function(ir_function *f);
-
- /**
- * \name Methods to get symbols from the table
- */
- /*@{*/
- ir_variable *get_variable(const char *name);
- const glsl_type *get_type(const char *name);
- ir_function *get_function(const char *name);
- /*@}*/
-
-private:
- symbol_table_entry *get_entry(const char *name);
-
- struct _mesa_symbol_table *table;
- void *mem_ctx;
-};
-
-#endif /* GLSL_SYMBOL_TABLE */
+/* -*- c++ -*- */ +/* + * Copyright © 2010 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#pragma once +#ifndef GLSL_SYMBOL_TABLE +#define GLSL_SYMBOL_TABLE + +#include <new> + +extern "C" { +#include "program/symbol_table.h" +} +#include "ir.h" +#include "glsl_types.h" + +class symbol_table_entry; + +/** + * Facade class for _mesa_symbol_table + * + * Wraps the existing \c _mesa_symbol_table data structure to enforce some + * type safe and some symbol table invariants. + */ +struct glsl_symbol_table { +private: + static void + _glsl_symbol_table_destructor (glsl_symbol_table *table) + { + table->~glsl_symbol_table(); + } + +public: + /* Callers of this ralloc-based new need not call delete. It's + * easier to just ralloc_free 'ctx' (or any of its ancestors). */ + static void* operator new(size_t size, void *ctx) + { + void *table; + + table = ralloc_size(ctx, size); + assert(table != NULL); + + ralloc_set_destructor(table, (void (*)(void*)) _glsl_symbol_table_destructor); + + return table; + } + + /* If the user *does* call delete, that's OK, we will just + * ralloc_free in that case. Here, C++ will have already called the + * destructor so tell ralloc not to do that again. */ + static void operator delete(void *table) + { + ralloc_set_destructor(table, NULL); + ralloc_free(table); + } + + glsl_symbol_table(); + ~glsl_symbol_table(); + + unsigned int language_version; + + void push_scope(); + void pop_scope(); + + /** + * Determine whether a name was declared at the current scope + */ + bool name_declared_this_scope(const char *name); + + /** + * \name Methods to add symbols to the table + * + * There is some temptation to rename all these functions to \c add_symbol + * or similar. However, this breaks symmetry with the getter functions and + * reduces the clarity of the intention of code that uses these methods. + */ + /*@{*/ + bool add_variable(ir_variable *v); + bool add_type(const char *name, const glsl_type *t); + bool add_function(ir_function *f); + /*@}*/ + + /** + * Add an function at global scope without checking for scoping conflicts. + */ + void add_global_function(ir_function *f); + + /** + * \name Methods to get symbols from the table + */ + /*@{*/ + ir_variable *get_variable(const char *name); + const glsl_type *get_type(const char *name); + ir_function *get_function(const char *name); + /*@}*/ + +private: + symbol_table_entry *get_entry(const char *name); + + struct _mesa_symbol_table *table; + void *mem_ctx; +}; + +#endif /* GLSL_SYMBOL_TABLE */ |