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-rw-r--r--erts/emulator/beam/erl_term.h95
1 files changed, 68 insertions, 27 deletions
diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h
index 1b6bb27395..d5e91d80d9 100644
--- a/erts/emulator/beam/erl_term.h
+++ b/erts/emulator/beam/erl_term.h
@@ -3,16 +3,17 @@
*
* Copyright Ericsson AB 2000-2014. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -147,21 +148,21 @@ struct erl_node_; /* Declared in erl_node_tables.h */
#define MAP_SUBTAG (0xF << _TAG_PRIMARY_SIZE) /* MAP */
-#define _TAG_HEADER_ARITYVAL (TAG_PRIMARY_HEADER|ARITYVAL_SUBTAG)
-#define _TAG_HEADER_FUN (TAG_PRIMARY_HEADER|FUN_SUBTAG)
-#define _TAG_HEADER_POS_BIG (TAG_PRIMARY_HEADER|POS_BIG_SUBTAG)
-#define _TAG_HEADER_NEG_BIG (TAG_PRIMARY_HEADER|NEG_BIG_SUBTAG)
-#define _TAG_HEADER_FLOAT (TAG_PRIMARY_HEADER|FLOAT_SUBTAG)
-#define _TAG_HEADER_EXPORT (TAG_PRIMARY_HEADER|EXPORT_SUBTAG)
-#define _TAG_HEADER_REF (TAG_PRIMARY_HEADER|REF_SUBTAG)
-#define _TAG_HEADER_REFC_BIN (TAG_PRIMARY_HEADER|REFC_BINARY_SUBTAG)
-#define _TAG_HEADER_HEAP_BIN (TAG_PRIMARY_HEADER|HEAP_BINARY_SUBTAG)
-#define _TAG_HEADER_SUB_BIN (TAG_PRIMARY_HEADER|SUB_BINARY_SUBTAG)
-#define _TAG_HEADER_EXTERNAL_PID (TAG_PRIMARY_HEADER|EXTERNAL_PID_SUBTAG)
-#define _TAG_HEADER_EXTERNAL_PORT (TAG_PRIMARY_HEADER|EXTERNAL_PORT_SUBTAG)
-#define _TAG_HEADER_EXTERNAL_REF (TAG_PRIMARY_HEADER|EXTERNAL_REF_SUBTAG)
+#define _TAG_HEADER_ARITYVAL (TAG_PRIMARY_HEADER|ARITYVAL_SUBTAG)
+#define _TAG_HEADER_FUN (TAG_PRIMARY_HEADER|FUN_SUBTAG)
+#define _TAG_HEADER_POS_BIG (TAG_PRIMARY_HEADER|POS_BIG_SUBTAG)
+#define _TAG_HEADER_NEG_BIG (TAG_PRIMARY_HEADER|NEG_BIG_SUBTAG)
+#define _TAG_HEADER_FLOAT (TAG_PRIMARY_HEADER|FLOAT_SUBTAG)
+#define _TAG_HEADER_EXPORT (TAG_PRIMARY_HEADER|EXPORT_SUBTAG)
+#define _TAG_HEADER_REF (TAG_PRIMARY_HEADER|REF_SUBTAG)
+#define _TAG_HEADER_REFC_BIN (TAG_PRIMARY_HEADER|REFC_BINARY_SUBTAG)
+#define _TAG_HEADER_HEAP_BIN (TAG_PRIMARY_HEADER|HEAP_BINARY_SUBTAG)
+#define _TAG_HEADER_SUB_BIN (TAG_PRIMARY_HEADER|SUB_BINARY_SUBTAG)
+#define _TAG_HEADER_EXTERNAL_PID (TAG_PRIMARY_HEADER|EXTERNAL_PID_SUBTAG)
+#define _TAG_HEADER_EXTERNAL_PORT (TAG_PRIMARY_HEADER|EXTERNAL_PORT_SUBTAG)
+#define _TAG_HEADER_EXTERNAL_REF (TAG_PRIMARY_HEADER|EXTERNAL_REF_SUBTAG)
#define _TAG_HEADER_BIN_MATCHSTATE (TAG_PRIMARY_HEADER|BIN_MATCHSTATE_SUBTAG)
-#define _TAG_HEADER_MAP (TAG_PRIMARY_HEADER|MAP_SUBTAG)
+#define _TAG_HEADER_MAP (TAG_PRIMARY_HEADER|MAP_SUBTAG)
#define _TAG_HEADER_MASK 0x3F
@@ -198,7 +199,7 @@ struct erl_node_; /* Declared in erl_node_tables.h */
#endif
#define _is_aligned(x) (((Uint)(x) & 0x3) == 0)
#define _unchecked_make_boxed(x) ((Uint) COMPRESS_POINTER(x) + TAG_PRIMARY_BOXED)
-_ET_DECLARE_CHECKED(Eterm,make_boxed,Eterm*)
+_ET_DECLARE_CHECKED(Eterm,make_boxed,const Eterm*)
#define make_boxed(x) _ET_APPLY(make_boxed,(x))
#if 1
#define _is_not_boxed(x) ((x) & (_TAG_PRIMARY_MASK-TAG_PRIMARY_BOXED))
@@ -214,7 +215,7 @@ _ET_DECLARE_CHECKED(Eterm*,boxed_val,Wterm)
/* cons cell ("list") access methods */
#define _unchecked_make_list(x) ((Uint) COMPRESS_POINTER(x) + TAG_PRIMARY_LIST)
-_ET_DECLARE_CHECKED(Eterm,make_list,Eterm*)
+_ET_DECLARE_CHECKED(Eterm,make_list,const Eterm*)
#define make_list(x) _ET_APPLY(make_list,(x))
#if 1
#define _unchecked_is_not_list(x) ((x) & (_TAG_PRIMARY_MASK-TAG_PRIMARY_LIST))
@@ -296,9 +297,10 @@ _ET_DECLARE_CHECKED(Uint,atom_val,Eterm)
#define atom_val(x) _ET_APPLY(atom_val,(x))
/* header (arityval or thing) access methods */
-#define _make_header(sz,tag) ((Uint)(((sz) << _HEADER_ARITY_OFFS) + (tag)))
+#define _make_header(sz,tag) ((Uint)(((Uint)(sz) << _HEADER_ARITY_OFFS) + (tag)))
#define is_header(x) (((x) & _TAG_PRIMARY_MASK) == TAG_PRIMARY_HEADER)
-#define _unchecked_header_arity(x) ((x) >> _HEADER_ARITY_OFFS)
+#define _unchecked_header_arity(x) \
+ (is_map_header(x) ? MAP_HEADER_ARITY(x) : ((x) >> _HEADER_ARITY_OFFS))
_ET_DECLARE_CHECKED(Uint,header_arity,Eterm)
#define header_arity(x) _ET_APPLY(header_arity,(x))
@@ -361,6 +363,7 @@ _ET_DECLARE_CHECKED(Uint,thing_subtag,Eterm)
((((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_REFC_BIN) || \
(((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_HEAP_BIN) || \
(((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_SUB_BIN))
+
#define make_binary(x) make_boxed((Eterm*)(x))
#define is_binary(x) (is_boxed((x)) && is_binary_header(*boxed_val((x))))
#define is_not_binary(x) (!is_binary((x)))
@@ -990,6 +993,44 @@ _ET_DECLARE_CHECKED(Uint32*,external_ref_data,Wterm)
_ET_DECLARE_CHECKED(struct erl_node_*,external_ref_node,Eterm)
#define external_ref_node(x) _ET_APPLY(external_ref_node,(x))
+/* maps */
+
+#define MAP_HEADER_TAG_SZ (2)
+#define MAP_HEADER_ARITY_SZ (8)
+#define MAP_HEADER_VAL_SZ (16)
+
+#define MAP_HEADER_TAG_FLATMAP_HEAD (0x0)
+#define MAP_HEADER_TAG_HAMT_NODE_BITMAP (0x1)
+#define MAP_HEADER_TAG_HAMT_HEAD_ARRAY (0x2)
+#define MAP_HEADER_TAG_HAMT_HEAD_BITMAP (0x3)
+
+#define MAP_HEADER_TYPE(Hdr) (((Hdr) >> (_HEADER_ARITY_OFFS)) & (0x3))
+#define MAP_HEADER_ARITY(Hdr) (((Hdr) >> (_HEADER_ARITY_OFFS + MAP_HEADER_TAG_SZ)) & (0xff))
+#define MAP_HEADER_VAL(Hdr) (((Hdr) >> (_HEADER_ARITY_OFFS + MAP_HEADER_TAG_SZ + MAP_HEADER_ARITY_SZ)) & (0xffff))
+
+#define make_hashmap(x) make_boxed((Eterm*)(x))
+#define make_hashmap_rel make_boxed_rel
+#define is_hashmap(x) (is_boxed((x)) && is_hashmap_header(*boxed_val((x))))
+#define is_not_hashmap(x) (!is_hashmap(x))
+#define is_hashmap_rel(RTERM,BASE) is_hashmap(rterm2wterm(RTERM,BASE))
+#define is_hashmap_header(x) (((x) & (_HEADER_MAP_HASHMAP_HEAD_MASK)) == HAMT_SUBTAG_HEAD_ARRAY)
+#define hashmap_val(x) _unchecked_boxed_val((x))
+#define hashmap_val_rel(RTERM, BASE) hashmap_val(rterm2wterm(RTERM, BASE))
+
+#define make_flatmap(x) make_boxed((Eterm*)(x))
+#define make_flatmap_rel(x, BASE) make_boxed_rel((Eterm*)(x),(BASE))
+#define is_flatmap(x) (is_boxed((x)) && is_flatmap_header(*boxed_val((x))))
+#define is_flatmap_rel(RTERM,BASE) is_flatmap(rterm2wterm(RTERM,BASE))
+#define is_not_flatmap(x) (!is_flatmap((x)))
+#define is_flatmap_header(x) (((x) & (_HEADER_MAP_SUBTAG_MASK)) == HAMT_SUBTAG_HEAD_FLATMAP)
+#define flatmap_val(x) (_unchecked_boxed_val((x)))
+#define flatmap_val_rel(RTERM, BASE) flatmap_val(rterm2wterm(RTERM, BASE))
+
+#define is_map_header(x) (((x) & (_TAG_HEADER_MASK)) == _TAG_HEADER_MAP)
+#define is_map(x) (is_boxed((x)) && is_map_header(*boxed_val(x)))
+#define is_not_map(x) (!is_map(x))
+#define is_map_rel(RTERM,BASE) is_map(rterm2wterm(RTERM,BASE))
+
/* number tests */
#define is_integer(x) (is_small(x) || is_big(x))
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-09 12:18:33 +0000