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-rw-r--r--mesalib/src/mesa/shader/symbol_table.c362
1 files changed, 0 insertions, 362 deletions
diff --git a/mesalib/src/mesa/shader/symbol_table.c b/mesalib/src/mesa/shader/symbol_table.c
deleted file mode 100644
index 6a5d68689..000000000
--- a/mesalib/src/mesa/shader/symbol_table.c
+++ /dev/null
@@ -1,362 +0,0 @@
-/*
- * Copyright © 2008 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 "main/imports.h"
-#include "symbol_table.h"
-#include "hash_table.h"
-
-struct symbol {
- /**
- * Link to the next symbol in the table with the same name
- *
- * The linked list of symbols with the same name is ordered by scope
- * from inner-most to outer-most.
- */
- struct symbol *next_with_same_name;
-
-
- /**
- * Link to the next symbol in the table with the same scope
- *
- * The linked list of symbols with the same scope is unordered. Symbols
- * in this list my have unique names.
- */
- struct symbol *next_with_same_scope;
-
-
- /**
- * Header information for the list of symbols with the same name.
- */
- struct symbol_header *hdr;
-
-
- /**
- * Name space of the symbol
- *
- * Name space are arbitrary user assigned integers. No two symbols can
- * exist in the same name space at the same scope level.
- */
- int name_space;
-
-
- /**
- * Arbitrary user supplied data.
- */
- void *data;
-};
-
-
-/**
- */
-struct symbol_header {
- /** Linkage in list of all headers in a given symbol table. */
- struct symbol_header *next;
-
- /** Symbol name. */
- const char *name;
-
- /** Linked list of symbols with the same name. */
- struct symbol *symbols;
-};
-
-
-/**
- * Element of the scope stack.
- */
-struct scope_level {
- /** Link to next (inner) scope level. */
- struct scope_level *next;
-
- /** Linked list of symbols with the same scope. */
- struct symbol *symbols;
-};
-
-
-/**
- *
- */
-struct _mesa_symbol_table {
- /** Hash table containing all symbols in the symbol table. */
- struct hash_table *ht;
-
- /** Top of scope stack. */
- struct scope_level *current_scope;
-
- /** List of all symbol headers in the table. */
- struct symbol_header *hdr;
-};
-
-
-struct _mesa_symbol_table_iterator {
- /**
- * Name space of symbols returned by this iterator.
- */
- int name_space;
-
-
- /**
- * Currently iterated symbol
- *
- * The next call to \c _mesa_symbol_table_iterator_get will return this
- * value. It will also update this value to the value that should be
- * returned by the next call.
- */
- struct symbol *curr;
-};
-
-
-static void
-check_symbol_table(struct _mesa_symbol_table *table)
-{
-#if 1
- struct scope_level *scope;
-
- for (scope = table->current_scope; scope != NULL; scope = scope->next) {
- struct symbol *sym;
-
- for (sym = scope->symbols
- ; sym != NULL
- ; sym = sym->next_with_same_name) {
- const struct symbol_header *const hdr = sym->hdr;
- struct symbol *sym2;
-
- for (sym2 = hdr->symbols
- ; sym2 != NULL
- ; sym2 = sym2->next_with_same_name) {
- assert(sym2->hdr == hdr);
- }
- }
- }
-#endif
-}
-
-void
-_mesa_symbol_table_pop_scope(struct _mesa_symbol_table *table)
-{
- struct scope_level *const scope = table->current_scope;
- struct symbol *sym = scope->symbols;
-
- table->current_scope = scope->next;
-
- free(scope);
-
- while (sym != NULL) {
- struct symbol *const next = sym->next_with_same_scope;
- struct symbol_header *const hdr = sym->hdr;
-
- assert(hdr->symbols == sym);
-
- hdr->symbols = sym->next_with_same_name;
-
- free(sym);
-
- sym = next;
- }
-
- check_symbol_table(table);
-}
-
-
-void
-_mesa_symbol_table_push_scope(struct _mesa_symbol_table *table)
-{
- struct scope_level *const scope = calloc(1, sizeof(*scope));
-
- scope->next = table->current_scope;
- table->current_scope = scope;
-}
-
-
-static struct symbol_header *
-find_symbol(struct _mesa_symbol_table *table, const char *name)
-{
- return (struct symbol_header *) hash_table_find(table->ht, name);
-}
-
-
-struct _mesa_symbol_table_iterator *
-_mesa_symbol_table_iterator_ctor(struct _mesa_symbol_table *table,
- int name_space, const char *name)
-{
- struct _mesa_symbol_table_iterator *iter = calloc(1, sizeof(*iter));
- struct symbol_header *const hdr = find_symbol(table, name);
-
- iter->name_space = name_space;
-
- if (hdr != NULL) {
- struct symbol *sym;
-
- for (sym = hdr->symbols; sym != NULL; sym = sym->next_with_same_name) {
- assert(sym->hdr == hdr);
-
- if ((name_space == -1) || (sym->name_space == name_space)) {
- iter->curr = sym;
- break;
- }
- }
- }
-
- return iter;
-}
-
-
-void
-_mesa_symbol_table_iterator_dtor(struct _mesa_symbol_table_iterator *iter)
-{
- free(iter);
-}
-
-
-void *
-_mesa_symbol_table_iterator_get(struct _mesa_symbol_table_iterator *iter)
-{
- return (iter->curr == NULL) ? NULL : iter->curr->data;
-}
-
-
-int
-_mesa_symbol_table_iterator_next(struct _mesa_symbol_table_iterator *iter)
-{
- struct symbol_header *hdr;
-
- if (iter->curr == NULL) {
- return 0;
- }
-
- hdr = iter->curr->hdr;
- iter->curr = iter->curr->next_with_same_name;
-
- while (iter->curr != NULL) {
- assert(iter->curr->hdr == hdr);
-
- if ((iter->name_space == -1)
- || (iter->curr->name_space == iter->name_space)) {
- return 1;
- }
-
- iter->curr = iter->curr->next_with_same_name;
- }
-
- return 0;
-}
-
-
-void *
-_mesa_symbol_table_find_symbol(struct _mesa_symbol_table *table,
- int name_space, const char *name)
-{
- struct symbol_header *const hdr = find_symbol(table, name);
-
- if (hdr != NULL) {
- struct symbol *sym;
-
-
- for (sym = hdr->symbols; sym != NULL; sym = sym->next_with_same_name) {
- assert(sym->hdr == hdr);
-
- if ((name_space == -1) || (sym->name_space == name_space)) {
- return sym->data;
- }
- }
- }
-
- return NULL;
-}
-
-
-int
-_mesa_symbol_table_add_symbol(struct _mesa_symbol_table *table,
- int name_space, const char *name,
- void *declaration)
-{
- struct symbol_header *hdr;
- struct symbol *sym;
-
- check_symbol_table(table);
-
- hdr = find_symbol(table, name);
-
- check_symbol_table(table);
-
- if (hdr == NULL) {
- hdr = calloc(1, sizeof(*hdr));
- hdr->name = name;
-
- hash_table_insert(table->ht, hdr, name);
- hdr->next = table->hdr;
- table->hdr = hdr;
- }
-
- check_symbol_table(table);
-
- sym = calloc(1, sizeof(*sym));
- sym->next_with_same_name = hdr->symbols;
- sym->next_with_same_scope = table->current_scope->symbols;
- sym->hdr = hdr;
- sym->name_space = name_space;
- sym->data = declaration;
-
- assert(sym->hdr == hdr);
-
- hdr->symbols = sym;
- table->current_scope->symbols = sym;
-
- check_symbol_table(table);
- return 0;
-}
-
-
-struct _mesa_symbol_table *
-_mesa_symbol_table_ctor(void)
-{
- struct _mesa_symbol_table *table = calloc(1, sizeof(*table));
-
- if (table != NULL) {
- table->ht = hash_table_ctor(32, hash_table_string_hash,
- hash_table_string_compare);
-
- _mesa_symbol_table_push_scope(table);
- }
-
- return table;
-}
-
-
-void
-_mesa_symbol_table_dtor(struct _mesa_symbol_table *table)
-{
- struct symbol_header *hdr;
- struct symbol_header *next;
-
- while (table->current_scope != NULL) {
- _mesa_symbol_table_pop_scope(table);
- }
-
- for (hdr = table->hdr; hdr != NULL; hdr = next) {
- next = hdr->next;
- free(hdr);
- }
-
- hash_table_dtor(table->ht);
- free(table);
-}
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