diff options
Diffstat (limited to 'src/mds-kbdc')
| -rw-r--r-- | src/mds-kbdc/tree.c | 184 | ||||
| -rw-r--r-- | src/mds-kbdc/tree.h | 144 |
2 files changed, 277 insertions, 51 deletions
diff --git a/src/mds-kbdc/tree.c b/src/mds-kbdc/tree.c new file mode 100644 index 0000000..45d2ca0 --- /dev/null +++ b/src/mds-kbdc/tree.c @@ -0,0 +1,184 @@ +/** + * mds — A micro-display server + * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +#include "tree.h" + +#include <stdlib.h> + + +/** + * Common procedure for `mds_kbdc_tree_destroy` and `mds_kbdc_tree_destroy_nonrecursive` + * + * @param this The tree node + * @param recursive Whether subtree should be destroyed and freed + */ +static void mds_kbdc_tree_destroy_(mds_kbdc_tree_t* restrict this, int recursive) +{ +#define V(type, var) (((type)this)->var) +#define xfree(t, v) (free(V(t, v)), V(t, v) = NULL) +#define xdestroy(t, v) (recursive ? (mds_kbdc_tree_destroy_(V(t, v), 1), xfree(t, v)) : (V(t, v) = NULL)) + + again: + if (this == NULL) + return; + + switch (this->type) + { + case MDS_KBDC_TREE_TYPE_INFORMATION: + case MDS_KBDC_TREE_TYPE_ASSUMPTION: + case MDS_KBDC_TREE_TYPE_ALTERNATION: + case MDS_KBDC_TREE_TYPE_UNORDERED: + xdestroy(struct mds_kbdc_tree_nesting*, inner); + break; + + case MDS_KBDC_TREE_TYPE_INFORMATION_LANGUAGE: + case MDS_KBDC_TREE_TYPE_INFORMATION_COUNTRY: + case MDS_KBDC_TREE_TYPE_INFORMATION_VARIANT: + xfree(struct mds_kbdc_tree_information_data*, data); + break; + + case MDS_KBDC_TREE_TYPE_FUNCTION: + case MDS_KBDC_TREE_TYPE_MACRO: + xfree(struct mds_kbdc_tree_callable*, name); + xdestroy(struct mds_kbdc_tree_callable*, inner); + break; + + case MDS_KBDC_TREE_TYPE_INCLUDE: + xfree(mds_kbdc_tree_include_t*, filename); + break; + + case MDS_KBDC_TREE_TYPE_ASSUMPTION_HAVE: + xfree(mds_kbdc_tree_assumption_have_t*, data); + break; + + case MDS_KBDC_TREE_TYPE_ASSUMPTION_HAVE_CHARS: + xfree(mds_kbdc_tree_assumption_have_chars_t*, chars); + break; + + case MDS_KBDC_TREE_TYPE_ASSUMPTION_HAVE_RANGE: + xfree(mds_kbdc_tree_assumption_have_range_t*, first); + xfree(mds_kbdc_tree_assumption_have_range_t*, last); + break; + + case MDS_KBDC_TREE_TYPE_FOR: + xfree(mds_kbdc_tree_for_t*, first); + xfree(mds_kbdc_tree_for_t*, last); + xfree(mds_kbdc_tree_for_t*, variable); + xdestroy(mds_kbdc_tree_for_t*, inner); + break; + + case MDS_KBDC_TREE_TYPE_IF: + xfree(mds_kbdc_tree_if_t*, condition); + xdestroy(mds_kbdc_tree_if_t*, inner); + xdestroy(mds_kbdc_tree_if_t*, otherwise); + break; + + case MDS_KBDC_TREE_TYPE_LET: + xfree(mds_kbdc_tree_let_t*, variable); + xdestroy(mds_kbdc_tree_let_t*, value); + break; + + case MDS_KBDC_TREE_TYPE_MAP: + xdestroy(mds_kbdc_tree_map_t*, sequence); + xdestroy(mds_kbdc_tree_map_t*, result); + break; + + case MDS_KBDC_TREE_TYPE_ARRAY: + xdestroy(mds_kbdc_tree_array_t*, elements); + break; + + case MDS_KBDC_TREE_TYPE_KEYS: + xfree(mds_kbdc_tree_keys_t*, keys); + break; + + case MDS_KBDC_TREE_TYPE_STRING: + xfree(mds_kbdc_tree_string_t*, string); + break; + + case MDS_KBDC_TREE_TYPE_MACRO_CALL: + xfree(mds_kbdc_tree_macro_call_t*, name); + xdestroy(mds_kbdc_tree_macro_call_t*, arguments); + break; + + default: + break; + } + + this = this->next; + goto again; + +#undef xdestroy +#undef xfree +#undef V +} + + + +/** + * Release all resources stored in a tree node, + * without freeing the node itself or freeing + * or destroying inner `mds_kbdc_tree_t*`:s + * + * @param this The tree node + */ +void mds_kbdc_tree_destroy_nonrecursive(mds_kbdc_tree_t* restrict this) +{ + mds_kbdc_tree_destroy_(this, 0); +} + + +/** + * Release all resources stored in a tree node, + * without freeing or destroying inner + * `mds_kbdc_tree_t*`:s, but free this node's + * allocation + * + * @param this The tree node + */ +void mds_kbdc_tree_free_nonrecursive(mds_kbdc_tree_t* restrict this) +{ + mds_kbdc_tree_destroy_nonrecursive(this); + free(this); +} + + +/** + * Release all resources stored in a tree node + * recursively, but do not free the allocation + * of the tree node + * + * @param this The tree node + */ +void mds_kbdc_tree_destroy(mds_kbdc_tree_t* restrict this) +{ + mds_kbdc_tree_destroy_(this, 1); +} + + +/** + * Release all resources stored in a tree node + * recursively, and free the allocation + * of the tree node + * + * @param this The tree node + */ +void mds_kbdc_tree_free(mds_kbdc_tree_t* restrict this) +{ + mds_kbdc_tree_destroy(this); + free(this); +} + diff --git a/src/mds-kbdc/tree.h b/src/mds-kbdc/tree.h index d6ad0db..ac6ba7e 100644 --- a/src/mds-kbdc/tree.h +++ b/src/mds-kbdc/tree.h @@ -24,127 +24,127 @@ /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_information_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_information_t` */ #define MDS_KBDC_TREE_TYPE_INFORMATION 0 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_information_language_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_information_language_t` */ #define MDS_KBDC_TREE_TYPE_INFORMATION_LANGUAGE 1 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_information_country_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_information_country_t` */ #define MDS_KBDC_TREE_TYPE_INFORMATION_COUNTRY 2 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_information_variant_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_information_variant_t` */ #define MDS_KBDC_TREE_TYPE_INFORMATION_VARIANT 3 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_include_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_include_t` */ #define MDS_KBDC_TREE_TYPE_INCLUDE 4 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_function_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_function_t` */ #define MDS_KBDC_TREE_TYPE_FUNCTION 5 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_macro_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_macro_t` */ #define MDS_KBDC_TREE_TYPE_MACRO 6 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_assumption` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_assumption` */ #define MDS_KBDC_TREE_TYPE_ASSUMPTION 7 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_assumption_have_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_assumption_have_t` */ #define MDS_KBDC_TREE_TYPE_ASSUMPTION_HAVE 8 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_assumption_have_chars_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_assumption_have_chars_t` */ #define MDS_KBDC_TREE_TYPE_ASSUMPTION_HAVE_CHARS 9 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_assumption_have_range_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_assumption_have_range_t` */ #define MDS_KBDC_TREE_TYPE_ASSUMPTION_HAVE_RANGE 10 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_for_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_for_t` */ #define MDS_KBDC_TREE_TYPE_FOR 11 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_if_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_if_t` */ #define MDS_KBDC_TREE_TYPE_IF 12 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_let_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_let_t` */ #define MDS_KBDC_TREE_TYPE_LET 13 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_map_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_map_t` */ #define MDS_KBDC_TREE_TYPE_MAP 15 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_array_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_array_t` */ #define MDS_KBDC_TREE_TYPE_ARRAY 16 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_keys_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_keys_t` */ #define MDS_KBDC_TREE_TYPE_KEYS 17 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_string_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_string_t` */ #define MDS_KBDC_TREE_TYPE_STRING 18 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_nothing_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_nothing_t` */ #define MDS_KBDC_TREE_TYPE_NOTHING 19 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_alternation_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_alternation_t` */ #define MDS_KBDC_TREE_TYPE_ALTERNATION 20 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_unordered_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_unordered_t` */ #define MDS_KBDC_TREE_TYPE_UNORDERED 21 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_macro_call_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_macro_call_t` */ #define MDS_KBDC_TREE_TYPE_MACRO_CALL 22 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_return_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_return_t` */ #define MDS_KBDC_TREE_TYPE_RETURN 23 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_break_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_break_t` */ #define MDS_KBDC_TREE_TYPE_BREAK 24 /** - * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_type_continue_t` + * Value of `mds_kbdc_tree_t.type` for `mds_kbdc_tree_continue_t` */ #define MDS_KBDC_TREE_TYPE_CONTINUE 25 @@ -171,7 +171,7 @@ typedef union mds_kbdc_tree mds_kbdc_tree_t; * - int type; -- Integer that specifies which structure is used * - mds_kbdc_tree_t*; -- The next node in the tree, at the same level; a sibling */ -#define MDS_KBDC_TREE_COMMON int type; mds_kbdc_tree_t* next +#define MDS_KBDC_TREE_COMMON int type; mds_kbdc_tree_t* next /** * This macro is used in this header file, and is then @@ -190,7 +190,7 @@ typedef union mds_kbdc_tree mds_kbdc_tree_t; * structure excluding this padding and the members defined * by the macro `MDS_KBDC_TREE_COMMON` */ -#define MDS_KBDC_TREE_PADDING(N) MDS_KBDC_TREE_PADDING((N) * sizeof(void*)) +#define MDS_KBDC_TREE_PADDING(N) MDS_KBDC_TREE_PADDING_((N) * sizeof(void*)) @@ -516,7 +516,7 @@ typedef struct mds_kbdc_tree_keys MDS_KBDC_TREE_PADDING(1); -} mds_kbdc_trees_key_t; +} mds_kbdc_tree_keys_t; /** @@ -562,22 +562,6 @@ typedef struct mds_kbdc_tree_nesting mds_kbdc_tree_unordered_t; /** - * Leaf structure for "return"-keyword - */ -typedef struct mds_kbdc_tree_nothing mds_kbdc_tree_type_return_t return_; - -/** - * Leaf structure for "break"-keyword - */ -typedef struct mds_kbdc_tree_nothing mds_kbdc_tree_type_break_t break_; - -/** - * Leaf structure for "continue"-keyword - */ -typedef struct mds_kbdc_tree_nothing mds_kbdc_tree_type_continue_t continue_; - - -/** * Tree structure for a macro call */ typedef struct mds_kbdc_tree_macro_call @@ -601,29 +585,48 @@ typedef struct mds_kbdc_tree_macro_call } mds_kbdc_tree_macro_call_t; +/** + * Leaf structure for "return"-keyword + */ +typedef struct mds_kbdc_tree_nothing mds_kbdc_tree_return_t; + +/** + * Leaf structure for "break"-keyword + */ +typedef struct mds_kbdc_tree_nothing mds_kbdc_tree_break_t; + +/** + * Leaf structure for "continue"-keyword + */ +typedef struct mds_kbdc_tree_nothing mds_kbdc_tree_continue_t; + + /** * Keyboard layout syntax tree */ union mds_kbdc_tree { +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wpedantic" /* unnamed struct */ struct { MDS_KBDC_TREE_COMMON; MDS_KBDC_TREE_PADDING(0); }; +# pragma GCC diagnostic pop mds_kbdc_tree_information_t information; mds_kbdc_tree_information_language_t language; mds_kbdc_tree_information_country_t country; mds_kbdc_tree_information_variant_t variant; - mds_kbdc_tree_information_include_t include; + mds_kbdc_tree_include_t include; mds_kbdc_tree_function_t function; mds_kbdc_tree_macro_t macro; mds_kbdc_tree_assumption_t assumption; - mds_kbdc_tree_assumption_have have; - mds_kbdc_tree_assumption_have_chars have_chars; - mds_kbdc_tree_assumption_have_range have_range; + mds_kbdc_tree_assumption_have_t have; + mds_kbdc_tree_assumption_have_chars_t have_chars; + mds_kbdc_tree_assumption_have_range_t have_range; mds_kbdc_tree_for_t for_; mds_kbdc_tree_if_t if_; mds_kbdc_tree_let_t let; @@ -635,13 +638,52 @@ union mds_kbdc_tree mds_kbdc_tree_alternation_t alternation; mds_kbdc_tree_unordered_t unordered; mds_kbdc_tree_macro_call_t macro_call; - mds_kbdc_tree_type_return_t return_; - mds_kbdc_tree_type_break_t break_; - mds_kbdc_tree_type_continue_t continue_; + mds_kbdc_tree_return_t return_; + mds_kbdc_tree_break_t break_; + mds_kbdc_tree_continue_t continue_; }; +/** + * Release all resources stored in a tree node, + * without freeing the node itself or freeing + * or destroying inner `mds_kbdc_tree_t*`:s + * + * @param this The tree node + */ +void mds_kbdc_tree_destroy_nonrecursive(mds_kbdc_tree_t* restrict this); + +/** + * Release all resources stored in a tree node, + * without freeing or destroying inner + * `mds_kbdc_tree_t*`:s, but free this node's + * allocation + * + * @param this The tree node + */ +void mds_kbdc_tree_free_nonrecursive(mds_kbdc_tree_t* restrict this); + +/** + * Release all resources stored in a tree node + * recursively, but do not free the allocation + * of the tree node + * + * @param this The tree node + */ +void mds_kbdc_tree_destroy(mds_kbdc_tree_t* restrict this); + +/** + * Release all resources stored in a tree node + * recursively, and free the allocation + * of the tree node + * + * @param this The tree node + */ +void mds_kbdc_tree_free(mds_kbdc_tree_t* restrict this); + + + #undef MDS_KBDC_TREE_PADDING #undef MDS_KBDC_TREE_PADDING_ #undef MDS_KBDC_TREE_COMMON |