/home/travis/build/MoarVM/MoarVM/src/6model/reprs/MVMHash.c

Source (jump to first uncovered line)
#include "moar.h"

/* This representation's function pointer table. */
static const MVMREPROps MVMHash_this_repr;

MVM_STATIC_INLINE MVMString * get_string_key(MVMThreadContext *tc, MVMObject *key) {
    if (!key || REPR(key)->ID != MVM_REPR_ID_MVMString || !IS_CONCRETE(key))
        MVM_exception_throw_adhoc(tc, "MVMHash representation requires MVMString keys");
    return (MVMString *)key;
}

/* Creates a new type object of this representation, and associates it with
 * the given HOW. */
static MVMObject * type_object_for(MVMThreadContext *tc, MVMObject *HOW) {
    MVMSTable *st = MVM_gc_allocate_stable(tc, &MVMHash_this_repr, HOW);

    MVMROOT(tc, st, {
        MVMObject *obj = MVM_gc_allocate_type_object(tc, st);
        MVM_ASSIGN_REF(tc, &(st->header), st->WHAT, obj);
        st->size = sizeof(MVMHash);
    });

    return st->WHAT;
}

/* Copies the body of one object to another. */
static void copy_to(MVMThreadContext *tc, MVMSTable *st, void *src, MVMObject *dest_root, void *dest) {
    MVMHashBody *src_body  = (MVMHashBody *)src;
    MVMHashBody *dest_body = (MVMHashBody *)dest;
    MVMHashEntry *current  = NULL, *tmp = NULL;
    unsigned bucket_tmp;

    /* NOTE: if we really wanted to, we could avoid rehashing... */
    HASH_ITER(hash_handle, src_body->hash_head, current, tmp, bucket_tmp) {
        MVMHashEntry *new_entry = MVM_fixed_size_alloc(tc, tc->instance->fsa,
            sizeof(MVMHashEntry));
        MVMString *key = MVM_HASH_KEY(current);
        MVM_ASSIGN_REF(tc, &(dest_root->header), new_entry->value, current->value);
        MVM_HASH_BIND(tc, dest_body->hash_head, key, new_entry);
        MVM_gc_write_barrier(tc, &(dest_root->header), &(key->common.header));
    }
}

/* Adds held objects to the GC worklist. */
static void gc_mark(MVMThreadContext *tc, MVMSTable *st, void *data, MVMGCWorklist *worklist) {
    MVMHashBody     *body = (MVMHashBody *)data;
    MVMHashEntry *current = NULL, *tmp = NULL;
    unsigned bucket_tmp;

    HASH_ITER(hash_handle, body->hash_head, current, tmp, bucket_tmp) {
        MVM_gc_worklist_add(tc, worklist, &current->hash_handle.key);
        MVM_gc_worklist_add(tc, worklist, &current->value);
    }
}

/* Called by the VM in order to free memory associated with this object. */
static void gc_free(MVMThreadContext *tc, MVMObject *obj) {
    MVMHash *h = (MVMHash *)obj;
    MVMHashEntry *current = NULL, *tmp = NULL;
    unsigned bucket_tmp;
    HASH_ITER(hash_handle, h->body.hash_head, current, tmp, bucket_tmp) {
        if (current != h->body.hash_head)
            MVM_fixed_size_free(tc, tc->instance->fsa, sizeof(MVMHashEntry), current);
    }
    tmp = h->body.hash_head;
    HASH_CLEAR(tc, hash_handle, h->body.hash_head);
    if (tmp)
        MVM_fixed_size_free(tc, tc->instance->fsa, sizeof(MVMHashEntry), tmp);
}

static void at_key(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMObject *key_obj, MVMRegister *result, MVMuint16 kind) {
    MVMHashBody   *body = (MVMHashBody *)data;
    MVMHashEntry *entry = NULL;
    MVM_HASH_GET(tc, body->hash_head, get_string_key(tc, key_obj), entry);
    if (kind == MVM_reg_obj)
        result->o = entry != NULL ? entry->value : tc->instance->VMNull;
    else
        MVM_exception_throw_adhoc(tc,
            "MVMHash representation does not support native type storage");
}
void MVMHash_at_key(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMObject *key_obj, MVMRegister *result, MVMuint16 kind) {
    return at_key(tc, st, root, data, key_obj, result, kind);
}

static void bind_key(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMObject *key_obj, MVMRegister value, MVMuint16 kind) {
    MVMHashBody   *body = (MVMHashBody *)data;
    MVMHashEntry *entry = NULL;

    MVMString *key = get_string_key(tc, key_obj);
    if (MVM_UNLIKELY(kind != MVM_reg_obj))
        MVM_exception_throw_adhoc(tc,
            "MVMHash representation does not support native type storage");

    /* first check whether we can must update the old entry. */
    MVM_HASH_GET(tc, body->hash_head, key, entry);
    if (!entry) {
        entry = MVM_fixed_size_alloc(tc, tc->instance->fsa,
            sizeof(MVMHashEntry));
        MVM_ASSIGN_REF(tc, &(root->header), entry->value, value.o);
        MVM_HASH_BIND(tc, body->hash_head, key, entry);
        MVM_gc_write_barrier(tc, &(root->header), &(key->common.header));
    }
    else {
        MVM_ASSIGN_REF(tc, &(root->header), entry->value, value.o);
    }
}
void MVMHash_bind_key(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMObject *key_obj, MVMRegister value, MVMuint16 kind) {
    return bind_key(tc, st, root, data, key_obj, value, kind);
}
static MVMuint64 elems(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data) {
    MVMHashBody *body = (MVMHashBody *)data;
    return HASH_CNT(hash_handle, body->hash_head);
}

static MVMint64 exists_key(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMObject *key_obj) {
    MVMHashBody   *body = (MVMHashBody *)data;
    MVMHashEntry *entry = NULL;
    MVM_HASH_GET(tc, body->hash_head, get_string_key(tc, key_obj), entry);
    return entry != NULL;
}

static void delete_key(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMObject *key_obj) {
    MVMHashBody *body = (MVMHashBody *)data;
    MVMString *key = get_string_key(tc, key_obj);
    MVMHashEntry *old_entry = NULL;
    MVM_HASH_GET(tc, body->hash_head, key, old_entry);
    if (old_entry) {
        HASH_DELETE(hash_handle, body->hash_head, old_entry);
        MVM_fixed_size_free(tc, tc->instance->fsa,
            sizeof(MVMHashEntry), old_entry);
    }
}

static MVMStorageSpec get_value_storage_spec(MVMThreadContext *tc, MVMSTable *st) {
    MVMStorageSpec spec;
    spec.inlineable      = MVM_STORAGE_SPEC_REFERENCE;
    spec.boxed_primitive = MVM_STORAGE_SPEC_BP_NONE;
    spec.can_box         = 0;
    spec.bits            = 0;
    spec.align           = 0;
    spec.is_unsigned     = 0;
    return spec;
}

static const MVMStorageSpec storage_spec = {
    MVM_STORAGE_SPEC_REFERENCE, /* inlineable */
    0,                          /* bits */
    0,                          /* align */
    MVM_STORAGE_SPEC_BP_NONE,   /* boxed_primitive */
    0,                          /* can_box */
    0,                          /* is_unsigned */
};

/* Gets the storage specification for this representation. */
static const MVMStorageSpec * get_storage_spec(MVMThreadContext *tc, MVMSTable *st) {
    return &storage_spec;
}

/* Compose the representation. */
static void compose(MVMThreadContext *tc, MVMSTable *st, MVMObject *info) {
    /* XXX key and value types will be communicated here */
}

/* Deserialize the representation. */
static void deserialize(MVMThreadContext *tc, MVMSTable *st, MVMObject *root, void *data, MVMSerializationReader *reader) {
    MVMHashBody *body = (MVMHashBody *)data;
    MVMint64 elems = MVM_serialization_read_int(tc, reader);
    MVMint64 i;
    for (i = 0; i < elems; i++) {
        MVMString *key = MVM_serialization_read_str(tc, reader);
        MVMObject *value = MVM_serialization_read_ref(tc, reader);
        MVMHashEntry *entry = MVM_fixed_size_alloc(tc, tc->instance->fsa,
            sizeof(MVMHashEntry));
        MVM_ASSIGN_REF(tc, &(root->header), entry->value, value);
        MVM_HASH_BIND(tc, body->hash_head, key, entry);
    }
}

/* Serialize the representation. */
MVMThreadContext *cmp_tc;
static int cmp_strings(const void *s1, const void *s2) {
    return MVM_string_compare(cmp_tc, *(MVMString **)s1, *(MVMString **)s2);
}
static void serialize(MVMThreadContext *tc, MVMSTable *st, void *data, MVMSerializationWriter *writer) {
    MVMHashBody *body = (MVMHashBody *)data;
    MVMHashEntry *current = NULL, *tmp = NULL;
    MVMuint64 elems = HASH_CNT(hash_handle, body->hash_head);
    MVMString **keys = MVM_malloc(sizeof(MVMString *) * elems);
    unsigned bucket_tmp;
    MVMuint64 i = 0;
    MVM_serialization_write_int(tc, writer, elems);
    HASH_ITER(hash_handle, body->hash_head, current, tmp, bucket_tmp) {
        keys[i++] = MVM_HASH_KEY(current);
    }
    cmp_tc = tc;
    qsort(keys, elems, sizeof(MVMString*), cmp_strings);
    for (i = 0; i < elems; i++) {
        MVMHashEntry *entry;
        MVM_HASH_GET(tc, body->hash_head, keys[i], entry);
        MVM_serialization_write_str(tc, writer, keys[i]);
        MVM_serialization_write_ref(tc, writer, entry->value);
    }
    MVM_free(keys);
}

/* Set the size of the STable. */
static void deserialize_stable_size(MVMThreadContext *tc, MVMSTable *st, MVMSerializationReader *reader) {
    st->size = sizeof(MVMHash);
}

/* Bytecode specialization for this REPR. */
static void spesh(MVMThreadContext *tc, MVMSTable *st, MVMSpeshGraph *g, MVMSpeshBB *bb, MVMSpeshIns *ins) {
    switch (ins->info->opcode) {
    case MVM_OP_create: {
        if (!(st->mode_flags & MVM_FINALIZE_TYPE)) {
            MVMSpeshOperand target   = ins->operands[0];
            MVMSpeshOperand type     = ins->operands[1];
            ins->info                = MVM_op_get_op(MVM_OP_sp_fastcreate);
            ins->operands            = MVM_spesh_alloc(tc, g, 3 * sizeof(MVMSpeshOperand));
            ins->operands[0]         = target;
            ins->operands[1].lit_i16 = sizeof(MVMHash);
            ins->operands[2].lit_i16 = MVM_spesh_add_spesh_slot(tc, g, (MVMCollectable *)st);
            MVM_spesh_get_facts(tc, g, type)->usages--;
        }
        break;
    }
    }
}

static MVMuint64 unmanaged_size(MVMThreadContext *tc, MVMSTable *st, void *data) {
    MVMHashBody *body = (MVMHashBody *)data;

    return sizeof(MVMHashEntry) * HASH_CNT(hash_handle, body->hash_head);
}

/* Initializes the representation. */
const MVMREPROps * MVMHash_initialize(MVMThreadContext *tc) {
    return &MVMHash_this_repr;
}

static const MVMREPROps MVMHash_this_repr = {
    type_object_for,
    MVM_gc_allocate_object,
    NULL, /* initialize */
    copy_to,
    MVM_REPR_DEFAULT_ATTR_FUNCS,
    MVM_REPR_DEFAULT_BOX_FUNCS,
    MVM_REPR_DEFAULT_POS_FUNCS,
    {
        at_key,
        bind_key,
        exists_key,
        delete_key,
        get_value_storage_spec
    },    /* ass_funcs */
    elems,
    get_storage_spec,
    NULL, /* change_type */
    serialize,
    deserialize,
    NULL, /* serialize_repr_data */
    NULL, /* deserialize_repr_data */
    deserialize_stable_size,
    gc_mark,
    gc_free,
    NULL, /* gc_cleanup */
    NULL, /* gc_mark_repr_data */
    NULL, /* gc_free_repr_data */
    compose,
    spesh,
    "VMHash", /* name */
    MVM_REPR_ID_MVMHash,
    unmanaged_size, /* unmanaged_size */
    NULL, /* describe_refs */
};

Coverage Report

Created: 2018-07-03 15:31

Line	Count	Source (jump to first uncovered line)
1		#include "moar.h"
2
3		/* This representation's function pointer table. */
4		static const MVMREPROps MVMHash_this_repr;
5
6	89.5M	MVM_STATIC_INLINE MVMString * get_string_key(MVMThreadContext tc, MVMObject key) {
7	89.5M	if (!key \|\| REPR(key)->ID != MVM_REPR_ID_MVMString \|\| !IS_CONCRETE(key))
8	0	MVM_exception_throw_adhoc(tc, "MVMHash representation requires MVMString keys");
9	89.5M	return (MVMString *)key;
10	89.5M	}
11
12		/* Creates a new type object of this representation, and associates it with
13		* the given HOW. */
14	146	static MVMObject * type_object_for(MVMThreadContext tc, MVMObject HOW) {
15	146	MVMSTable *st = MVM_gc_allocate_stable(tc, &MVMHash_this_repr, HOW);
16	146
17	146	MVMROOT(tc, st, {
18	146	MVMObject *obj = MVM_gc_allocate_type_object(tc, st);
19	146	MVM_ASSIGN_REF(tc, &(st->header), st->WHAT, obj);
20	146	st->size = sizeof(MVMHash);
21	146	});
22	146
23	146	return st->WHAT;
24	146	}
25
26		/* Copies the body of one object to another. */
27	3.51k	static void copy_to(MVMThreadContext tc, MVMSTable st, void src, MVMObject dest_root, void *dest) {
28	3.51k	MVMHashBody src_body = (MVMHashBody )src;
29	3.51k	MVMHashBody dest_body = (MVMHashBody )dest;
30	3.51k	MVMHashEntry current = NULL, tmp = NULL;
31	3.51k	unsigned bucket_tmp;
32	3.51k
33	3.51k	/* NOTE: if we really wanted to, we could avoid rehashing... */
34	6.53k	HASH_ITER(hash_handle, src_body->hash_head, current, tmp, bucket_tmp) {
35	6.53k	MVMHashEntry *new_entry = MVM_fixed_size_alloc(tc, tc->instance->fsa,
36	6.53k	sizeof(MVMHashEntry));
37	6.53k	MVMString *key = MVM_HASH_KEY(current);
38	6.53k	MVM_ASSIGN_REF(tc, &(dest_root->header), new_entry->value, current->value);
39	6.53k	MVM_HASH_BIND(tc, dest_body->hash_head, key, new_entry);
40	6.53k	MVM_gc_write_barrier(tc, &(dest_root->header), &(key->common.header));
41	6.53k	}
42	3.51k	}
43
44		/* Adds held objects to the GC worklist. */
45	707k	static void gc_mark(MVMThreadContext tc, MVMSTable st, void data, MVMGCWorklist worklist) {
46	707k	MVMHashBody body = (MVMHashBody )data;
47	707k	MVMHashEntry current = NULL, tmp = NULL;
48	707k	unsigned bucket_tmp;
49	707k
50	1.09M	HASH_ITER(hash_handle, body->hash_head, current, tmp, bucket_tmp) {
51	1.09M	MVM_gc_worklist_add(tc, worklist, &current->hash_handle.key);
52	1.09M	MVM_gc_worklist_add(tc, worklist, &current->value);
53	1.09M	}
54	707k	}
55
56		/* Called by the VM in order to free memory associated with this object. */
57	3.41M	static void gc_free(MVMThreadContext tc, MVMObject obj) {
58	3.41M	MVMHash h = (MVMHash )obj;
59	3.41M	MVMHashEntry current = NULL, tmp = NULL;
60	3.41M	unsigned bucket_tmp;
61	3.41M	HASH_ITER(hash_handle, h->body.hash_head, current, tmp, bucket_tmp) {
62	287k	if (current != h->body.hash_head)
63	112k	MVM_fixed_size_free(tc, tc->instance->fsa, sizeof(MVMHashEntry), current);
64	287k	}
65	3.41M	tmp = h->body.hash_head;
66	3.41M	HASH_CLEAR(tc, hash_handle, h->body.hash_head);
67	3.41M	if (tmp)
68	174k	MVM_fixed_size_free(tc, tc->instance->fsa, sizeof(MVMHashEntry), tmp);
69	3.41M	}
70
71	17.2M	static void at_key(MVMThreadContext tc, MVMSTable st, MVMObject root, void data, MVMObject key_obj, MVMRegister result, MVMuint16 kind) {
72	17.2M	MVMHashBody body = (MVMHashBody )data;
73	17.2M	MVMHashEntry *entry = NULL;
74	17.2M	MVM_HASH_GET(tc, body->hash_head, get_string_key(tc, key_obj), entry);
75	17.2M	if (kind == MVM_reg_obj)
76	17.2M	result->o = entry != NULL ? entry->value : tc->instance->VMNull;
77	17.2M	else
78	18.4E	MVM_exception_throw_adhoc(tc,
79	18.4E	"MVMHash representation does not support native type storage");
80	17.2M	}
81	12.7M	void MVMHash_at_key(MVMThreadContext tc, MVMSTable st, MVMObject root, void data, MVMObject key_obj, MVMRegister result, MVMuint16 kind) {
82	12.7M	return at_key(tc, st, root, data, key_obj, result, kind);
83	12.7M	}
84
85	2.12M	static void bind_key(MVMThreadContext tc, MVMSTable st, MVMObject root, void data, MVMObject *key_obj, MVMRegister value, MVMuint16 kind) {
86	2.12M	MVMHashBody body = (MVMHashBody )data;
87	2.12M	MVMHashEntry *entry = NULL;
88	2.12M
89	2.12M	MVMString *key = get_string_key(tc, key_obj);
90	2.12M	if (MVM_UNLIKELY(kind != MVM_reg_obj))
91	0	MVM_exception_throw_adhoc(tc,
92	0	"MVMHash representation does not support native type storage");
93	2.12M
94	2.12M	/* first check whether we can must update the old entry. */
95	2.12M	MVM_HASH_GET(tc, body->hash_head, key, entry);
96	2.12M	if (!entry) {
97	2.07M	entry = MVM_fixed_size_alloc(tc, tc->instance->fsa,
98	2.07M	sizeof(MVMHashEntry));
99	2.07M	MVM_ASSIGN_REF(tc, &(root->header), entry->value, value.o);
100	2.07M	MVM_HASH_BIND(tc, body->hash_head, key, entry);
101	2.07M	MVM_gc_write_barrier(tc, &(root->header), &(key->common.header));
102	2.07M	}
103	46.1k	else {
104	46.1k	MVM_ASSIGN_REF(tc, &(root->header), entry->value, value.o);
105	46.1k	}
106	2.12M	}
107	815k	void MVMHash_bind_key(MVMThreadContext tc, MVMSTable st, MVMObject root, void data, MVMObject *key_obj, MVMRegister value, MVMuint16 kind) {
108	815k	return bind_key(tc, st, root, data, key_obj, value, kind);
109	815k	}
110	946k	static MVMuint64 elems(MVMThreadContext tc, MVMSTable st, MVMObject root, void data) {
111	946k	MVMHashBody body = (MVMHashBody )data;
112	946k	return HASH_CNT(hash_handle, body->hash_head);
113	946k	}
114
115	576k	static MVMint64 exists_key(MVMThreadContext tc, MVMSTable st, MVMObject root, void data, MVMObject *key_obj) {
116	576k	MVMHashBody body = (MVMHashBody )data;
117	576k	MVMHashEntry *entry = NULL;
118	576k	MVM_HASH_GET(tc, body->hash_head, get_string_key(tc, key_obj), entry);
119	576k	return entry != NULL;
120	576k	}
121
122	154k	static void delete_key(MVMThreadContext tc, MVMSTable st, MVMObject root, void data, MVMObject *key_obj) {
123	154k	MVMHashBody body = (MVMHashBody )data;
124	154k	MVMString *key = get_string_key(tc, key_obj);
125	154k	MVMHashEntry *old_entry = NULL;
126	154k	MVM_HASH_GET(tc, body->hash_head, key, old_entry);
127	154k	if (old_entry) {
128	152k	HASH_DELETE(hash_handle, body->hash_head, old_entry);
129	152k	MVM_fixed_size_free(tc, tc->instance->fsa,
130	152k	sizeof(MVMHashEntry), old_entry);
131	152k	}
132	154k	}
133
134	0	static MVMStorageSpec get_value_storage_spec(MVMThreadContext tc, MVMSTable st) {
135	0	MVMStorageSpec spec;
136	0	spec.inlineable = MVM_STORAGE_SPEC_REFERENCE;
137	0	spec.boxed_primitive = MVM_STORAGE_SPEC_BP_NONE;
138	0	spec.can_box = 0;
139	0	spec.bits = 0;
140	0	spec.align = 0;
141	0	spec.is_unsigned = 0;
142	0	return spec;
143	0	}
144
145		static const MVMStorageSpec storage_spec = {
146		MVM_STORAGE_SPEC_REFERENCE, /* inlineable */
147		0, /* bits */
148		0, /* align */
149		MVM_STORAGE_SPEC_BP_NONE, /* boxed_primitive */
150		0, /* can_box */
151		0, /* is_unsigned */
152		};
153
154		/* Gets the storage specification for this representation. */
155	8.50k	static const MVMStorageSpec * get_storage_spec(MVMThreadContext tc, MVMSTable st) {
156	8.50k	return &storage_spec;
157	8.50k	}
158
159		/* Compose the representation. */
160	2	static void compose(MVMThreadContext tc, MVMSTable st, MVMObject *info) {
161	2	/* XXX key and value types will be communicated here */
162	2	}
163
164		/* Deserialize the representation. */
165	1	static void deserialize(MVMThreadContext tc, MVMSTable st, MVMObject root, void data, MVMSerializationReader *reader) {
166	1	MVMHashBody body = (MVMHashBody )data;
167	1	MVMint64 elems = MVM_serialization_read_int(tc, reader);
168	1	MVMint64 i;
169	4	for (i = 0; i < elems; i++) {
170	3	MVMString *key = MVM_serialization_read_str(tc, reader);
171	3	MVMObject *value = MVM_serialization_read_ref(tc, reader);
172	3	MVMHashEntry *entry = MVM_fixed_size_alloc(tc, tc->instance->fsa,
173	3	sizeof(MVMHashEntry));
174	3	MVM_ASSIGN_REF(tc, &(root->header), entry->value, value);
175	3	MVM_HASH_BIND(tc, body->hash_head, key, entry);
176	3	}
177	1	}
178
179		/* Serialize the representation. */
180		MVMThreadContext *cmp_tc;
181	2	static int cmp_strings(const void s1, const void s2) {
182	2	return MVM_string_compare(cmp_tc, (MVMString )s1, (MVMString **)s2);
183	2	}
184	1	static void serialize(MVMThreadContext tc, MVMSTable st, void data, MVMSerializationWriter writer) {
185	1	MVMHashBody body = (MVMHashBody )data;
186	1	MVMHashEntry current = NULL, tmp = NULL;
187	1	MVMuint64 elems = HASH_CNT(hash_handle, body->hash_head);
188	1	MVMString *keys = MVM_malloc(sizeof(MVMString ) * elems);
189	1	unsigned bucket_tmp;
190	1	MVMuint64 i = 0;
191	1	MVM_serialization_write_int(tc, writer, elems);
192	3	HASH_ITER(hash_handle, body->hash_head, current, tmp, bucket_tmp) {
193	3	keys[i++] = MVM_HASH_KEY(current);
194	3	}
195	1	cmp_tc = tc;
196	1	qsort(keys, elems, sizeof(MVMString*), cmp_strings);
197	4	for (i = 0; i < elems; i++) {
198	3	MVMHashEntry *entry;
199	3	MVM_HASH_GET(tc, body->hash_head, keys[i], entry);
200	3	MVM_serialization_write_str(tc, writer, keys[i]);
201	3	MVM_serialization_write_ref(tc, writer, entry->value);
202	3	}
203	1	MVM_free(keys);
204	1	}
205
206		/* Set the size of the STable. */
207	0	static void deserialize_stable_size(MVMThreadContext tc, MVMSTable st, MVMSerializationReader *reader) {
208	0	st->size = sizeof(MVMHash);
209	0	}
210
211		/* Bytecode specialization for this REPR. */
212	4.78k	static void spesh(MVMThreadContext tc, MVMSTable st, MVMSpeshGraph g, MVMSpeshBB bb, MVMSpeshIns *ins) {
213	4.78k	switch (ins->info->opcode) {
214	1.28k	case MVM_OP_create: {
215	1.28k	if (!(st->mode_flags & MVM_FINALIZE_TYPE)) {
216	1.28k	MVMSpeshOperand target = ins->operands[0];
217	1.28k	MVMSpeshOperand type = ins->operands[1];
218	1.28k	ins->info = MVM_op_get_op(MVM_OP_sp_fastcreate);
219	1.28k	ins->operands = MVM_spesh_alloc(tc, g, 3 * sizeof(MVMSpeshOperand));
220	1.28k	ins->operands[0] = target;
221	1.28k	ins->operands[1].lit_i16 = sizeof(MVMHash);
222	1.28k	ins->operands[2].lit_i16 = MVM_spesh_add_spesh_slot(tc, g, (MVMCollectable *)st);
223	1.28k	MVM_spesh_get_facts(tc, g, type)->usages--;
224	1.28k	}
225	1.28k	break;
226	1.28k	}
227	4.78k	}
228	4.78k	}
229
230	237k	static MVMuint64 unmanaged_size(MVMThreadContext tc, MVMSTable st, void *data) {
231	237k	MVMHashBody body = (MVMHashBody )data;
232	237k
233	237k	return sizeof(MVMHashEntry) * HASH_CNT(hash_handle, body->hash_head);
234	237k	}
235
236		/* Initializes the representation. */
237	144	const MVMREPROps * MVMHash_initialize(MVMThreadContext *tc) {
238	144	return &MVMHash_this_repr;
239	144	}
240
241		static const MVMREPROps MVMHash_this_repr = {
242		type_object_for,
243		MVM_gc_allocate_object,
244		NULL, /* initialize */
245		copy_to,
246		MVM_REPR_DEFAULT_ATTR_FUNCS,
247		MVM_REPR_DEFAULT_BOX_FUNCS,
248		MVM_REPR_DEFAULT_POS_FUNCS,
249		{
250		at_key,
251		bind_key,
252		exists_key,
253		delete_key,
254		get_value_storage_spec
255		}, /* ass_funcs */
256		elems,
257		get_storage_spec,
258		NULL, /* change_type */
259		serialize,
260		deserialize,
261		NULL, /* serialize_repr_data */
262		NULL, /* deserialize_repr_data */
263		deserialize_stable_size,
264		gc_mark,
265		gc_free,
266		NULL, /* gc_cleanup */
267		NULL, /* gc_mark_repr_data */
268		NULL, /* gc_free_repr_data */
269		compose,
270		spesh,
271		"VMHash", /* name */
272		MVM_REPR_ID_MVMHash,
273		unmanaged_size, /* unmanaged_size */
274		NULL, /* describe_refs */
275		};