diff options
Diffstat (limited to 'mesalib/src/glsl/glsl_symbol_table.cpp')
-rw-r--r-- | mesalib/src/glsl/glsl_symbol_table.cpp | 334 |
1 files changed, 169 insertions, 165 deletions
diff --git a/mesalib/src/glsl/glsl_symbol_table.cpp b/mesalib/src/glsl/glsl_symbol_table.cpp index bcb65d301..fa6458df5 100644 --- a/mesalib/src/glsl/glsl_symbol_table.cpp +++ b/mesalib/src/glsl/glsl_symbol_table.cpp @@ -1,165 +1,169 @@ -/* -*- 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. - */ - -#include "glsl_symbol_table.h" - -class symbol_table_entry { -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 *entry = ralloc_size(ctx, size); - assert(entry != NULL); - return entry; - } - - /* If the user *does* call delete, that's OK, we will just ralloc_free. */ - static void operator delete(void *entry) - { - ralloc_free(entry); - } - - symbol_table_entry(ir_variable *v) : v(v), f(0), t(0) {} - symbol_table_entry(ir_function *f) : v(0), f(f), t(0) {} - symbol_table_entry(const glsl_type *t) : v(0), f(0), t(t) {} - - ir_variable *v; - ir_function *f; - const glsl_type *t; -}; - -glsl_symbol_table::glsl_symbol_table() -{ - this->language_version = 120; - this->table = _mesa_symbol_table_ctor(); - this->mem_ctx = ralloc_context(NULL); -} - -glsl_symbol_table::~glsl_symbol_table() -{ - _mesa_symbol_table_dtor(table); - ralloc_free(mem_ctx); -} - -void glsl_symbol_table::push_scope() -{ - _mesa_symbol_table_push_scope(table); -} - -void glsl_symbol_table::pop_scope() -{ - _mesa_symbol_table_pop_scope(table); -} - -bool glsl_symbol_table::name_declared_this_scope(const char *name) -{ - return _mesa_symbol_table_symbol_scope(table, -1, name) == 0; -} - -bool glsl_symbol_table::add_variable(ir_variable *v) -{ - if (this->language_version == 110) { - /* In 1.10, functions and variables have separate namespaces. */ - symbol_table_entry *existing = get_entry(v->name); - if (name_declared_this_scope(v->name)) { - /* If there's already an existing function (not a constructor!) in - * the current scope, just update the existing entry to include 'v'. - */ - if (existing->v == NULL && existing->t == NULL) { - existing->v = v; - return true; - } - } else { - /* If not declared at this scope, add a new entry. But if an existing - * entry includes a function, propagate that to this block - otherwise - * the new variable declaration would shadow the function. - */ - symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(v); - if (existing != NULL) - entry->f = existing->f; - int added = _mesa_symbol_table_add_symbol(table, -1, v->name, entry); - assert(added == 0); - (void)added; - return true; - } - return false; - } - - /* 1.20+ rules: */ - symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(v); - return _mesa_symbol_table_add_symbol(table, -1, v->name, entry) == 0; -} - -bool glsl_symbol_table::add_type(const char *name, const glsl_type *t) -{ - symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(t); - return _mesa_symbol_table_add_symbol(table, -1, name, entry) == 0; -} - -bool glsl_symbol_table::add_function(ir_function *f) -{ - if (this->language_version == 110 && name_declared_this_scope(f->name)) { - /* In 1.10, functions and variables have separate namespaces. */ - symbol_table_entry *existing = get_entry(f->name); - if ((existing->f == NULL) && (existing->t == NULL)) { - existing->f = f; - return true; - } - } - symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(f); - return _mesa_symbol_table_add_symbol(table, -1, f->name, entry) == 0; -} - -void glsl_symbol_table::add_global_function(ir_function *f) -{ - symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(f); - int added = _mesa_symbol_table_add_global_symbol(table, -1, f->name, entry); - assert(added == 0); - (void)added; -} - -ir_variable *glsl_symbol_table::get_variable(const char *name) -{ - symbol_table_entry *entry = get_entry(name); - return entry != NULL ? entry->v : NULL; -} - -const glsl_type *glsl_symbol_table::get_type(const char *name) -{ - symbol_table_entry *entry = get_entry(name); - return entry != NULL ? entry->t : NULL; -} - -ir_function *glsl_symbol_table::get_function(const char *name) -{ - symbol_table_entry *entry = get_entry(name); - return entry != NULL ? entry->f : NULL; -} - -symbol_table_entry *glsl_symbol_table::get_entry(const char *name) -{ - return (symbol_table_entry *) - _mesa_symbol_table_find_symbol(table, -1, name); -} +/* -*- 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.
+ */
+
+#include "glsl_symbol_table.h"
+
+class symbol_table_entry {
+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 *entry = ralloc_size(ctx, size);
+ assert(entry != NULL);
+ return entry;
+ }
+
+ /* If the user *does* call delete, that's OK, we will just ralloc_free. */
+ static void operator delete(void *entry, void *ctx)
+ {
+ ralloc_free(entry);
+ }
+ static void operator delete(void *entry)
+ {
+ ralloc_free(entry);
+ }
+
+ symbol_table_entry(ir_variable *v) : v(v), f(0), t(0) {}
+ symbol_table_entry(ir_function *f) : v(0), f(f), t(0) {}
+ symbol_table_entry(const glsl_type *t) : v(0), f(0), t(t) {}
+
+ ir_variable *v;
+ ir_function *f;
+ const glsl_type *t;
+};
+
+glsl_symbol_table::glsl_symbol_table()
+{
+ this->language_version = 120;
+ this->table = _mesa_symbol_table_ctor();
+ this->mem_ctx = ralloc_context(NULL);
+}
+
+glsl_symbol_table::~glsl_symbol_table()
+{
+ _mesa_symbol_table_dtor(table);
+ ralloc_free(mem_ctx);
+}
+
+void glsl_symbol_table::push_scope()
+{
+ _mesa_symbol_table_push_scope(table);
+}
+
+void glsl_symbol_table::pop_scope()
+{
+ _mesa_symbol_table_pop_scope(table);
+}
+
+bool glsl_symbol_table::name_declared_this_scope(const char *name)
+{
+ return _mesa_symbol_table_symbol_scope(table, -1, name) == 0;
+}
+
+bool glsl_symbol_table::add_variable(ir_variable *v)
+{
+ if (this->language_version == 110) {
+ /* In 1.10, functions and variables have separate namespaces. */
+ symbol_table_entry *existing = get_entry(v->name);
+ if (name_declared_this_scope(v->name)) {
+ /* If there's already an existing function (not a constructor!) in
+ * the current scope, just update the existing entry to include 'v'.
+ */
+ if (existing->v == NULL && existing->t == NULL) {
+ existing->v = v;
+ return true;
+ }
+ } else {
+ /* If not declared at this scope, add a new entry. But if an existing
+ * entry includes a function, propagate that to this block - otherwise
+ * the new variable declaration would shadow the function.
+ */
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(v);
+ if (existing != NULL)
+ entry->f = existing->f;
+ int added = _mesa_symbol_table_add_symbol(table, -1, v->name, entry);
+ assert(added == 0);
+ (void)added;
+ return true;
+ }
+ return false;
+ }
+
+ /* 1.20+ rules: */
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(v);
+ return _mesa_symbol_table_add_symbol(table, -1, v->name, entry) == 0;
+}
+
+bool glsl_symbol_table::add_type(const char *name, const glsl_type *t)
+{
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(t);
+ return _mesa_symbol_table_add_symbol(table, -1, name, entry) == 0;
+}
+
+bool glsl_symbol_table::add_function(ir_function *f)
+{
+ if (this->language_version == 110 && name_declared_this_scope(f->name)) {
+ /* In 1.10, functions and variables have separate namespaces. */
+ symbol_table_entry *existing = get_entry(f->name);
+ if ((existing->f == NULL) && (existing->t == NULL)) {
+ existing->f = f;
+ return true;
+ }
+ }
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(f);
+ return _mesa_symbol_table_add_symbol(table, -1, f->name, entry) == 0;
+}
+
+void glsl_symbol_table::add_global_function(ir_function *f)
+{
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(f);
+ int added = _mesa_symbol_table_add_global_symbol(table, -1, f->name, entry);
+ assert(added == 0);
+ (void)added;
+}
+
+ir_variable *glsl_symbol_table::get_variable(const char *name)
+{
+ symbol_table_entry *entry = get_entry(name);
+ return entry != NULL ? entry->v : NULL;
+}
+
+const glsl_type *glsl_symbol_table::get_type(const char *name)
+{
+ symbol_table_entry *entry = get_entry(name);
+ return entry != NULL ? entry->t : NULL;
+}
+
+ir_function *glsl_symbol_table::get_function(const char *name)
+{
+ symbol_table_entry *entry = get_entry(name);
+ return entry != NULL ? entry->f : NULL;
+}
+
+symbol_table_entry *glsl_symbol_table::get_entry(const char *name)
+{
+ return (symbol_table_entry *)
+ _mesa_symbol_table_find_symbol(table, -1, name);
+}
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