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/*
* Copyright 2016 WebAssembly Community Group participants
*
* 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
*
* 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.
*/
#ifndef WASM_VECTOR_H_
#define WASM_VECTOR_H_
#include <stddef.h>
#include "wasm-allocator.h"
#include "wasm-common.h"
#include "wasm-config.h"
/*
* WASM_DEFINE_VECTOR(widget, WasmWidget) defines struct and functions like the
* following:
*
* typedef struct WasmWidgetVector {
* WasmWidget* data;
* size_t size;
* size_t capacity;
* } WasmWidgetVector;
*
* void wasm_destroy_widget_vector(WasmAllocator*, WasmWidgetVector* vec);
* WasmWidget* wasm_append_widget(WasmAllocator*, WasmWidgetVector* vec);
* WasmResult wasm_resize_widget_vector(WasmAllocator*, WasmWidgetVector* vec,
* size_t size);
* WasmResult wasm_reserve_widgets(WasmAllocator*, WasmWidgetVector* vec,
* size_t desired);
* WasmResult wasm_append_widget_value(WasmAllocator*, WasmWidgetVector* vec,
* const WasmWidget* value);
* WasmResult wasm_extend_widgets(WasmAllocator*, WasmWidgetVector* dst,
* const WasmWidgetVector* src);
*/
#define WASM_DEFINE_VECTOR(name, type) \
typedef struct type##Vector { \
type* data; \
size_t size; \
size_t capacity; \
} type##Vector; \
\
WASM_EXTERN_C_BEGIN \
static WASM_INLINE void wasm_destroy_##name##_vector( \
struct WasmAllocator* allocator, type##Vector* vec) WASM_UNUSED; \
static WASM_INLINE WasmResult wasm_resize_##name##_vector( \
struct WasmAllocator* allocator, type##Vector* vec, size_t desired) \
WASM_UNUSED; \
static WASM_INLINE WasmResult wasm_reserve_##name##s( \
struct WasmAllocator* allocator, type##Vector* vec, size_t desired) \
WASM_UNUSED; \
static WASM_INLINE type* wasm_append_##name(struct WasmAllocator* allocator, \
type##Vector* vec) WASM_UNUSED; \
static WASM_INLINE WasmResult wasm_append_##name##_value( \
struct WasmAllocator* allocator, type##Vector* vec, const type* value) \
WASM_UNUSED; \
static WASM_INLINE WasmResult wasm_extend_##name##s( \
struct WasmAllocator* allocator, type##Vector* dst, \
const type##Vector* src) WASM_UNUSED; \
WASM_EXTERN_C_END \
\
void wasm_destroy_##name##_vector(struct WasmAllocator* allocator, \
type##Vector* vec) { \
wasm_free(allocator, vec->data); \
vec->data = NULL; \
vec->size = 0; \
vec->capacity = 0; \
} \
WasmResult wasm_resize_##name##_vector(struct WasmAllocator* allocator, \
type##Vector* vec, size_t size) { \
return wasm_resize_vector(allocator, (void**)&vec->data, &vec->size, \
&vec->capacity, size, sizeof(type)); \
} \
WasmResult wasm_reserve_##name##s(struct WasmAllocator* allocator, \
type##Vector* vec, size_t desired) { \
return wasm_ensure_capacity(allocator, (void**)&vec->data, &vec->capacity, \
desired, sizeof(type)); \
} \
type* wasm_append_##name(struct WasmAllocator* allocator, \
type##Vector* vec) { \
return wasm_append_element(allocator, (void**)&vec->data, &vec->size, \
&vec->capacity, sizeof(type)); \
} \
WasmResult wasm_append_##name##_value( \
struct WasmAllocator* allocator, type##Vector* vec, const type* value) { \
type* slot = wasm_append_##name(allocator, vec); \
if (!slot) \
return WASM_ERROR; \
*slot = *value; \
return WASM_OK; \
} \
WasmResult wasm_extend_##name##s(struct WasmAllocator* allocator, \
type##Vector* dst, \
const type##Vector* src) { \
return wasm_extend_elements(allocator, (void**)&dst->data, &dst->size, \
&dst->capacity, (const void**)&src->data, \
src->size, sizeof(type)); \
}
#define WASM_DESTROY_VECTOR_AND_ELEMENTS(allocator, v, name) \
{ \
size_t i; \
for (i = 0; i < (v).size; ++i) \
wasm_destroy_##name(allocator, &((v).data[i])); \
wasm_destroy_##name##_vector(allocator, &(v)); \
}
WASM_EXTERN_C_BEGIN
WasmResult wasm_ensure_capacity(struct WasmAllocator*,
void** data,
size_t* capacity,
size_t desired_size,
size_t elt_byte_size) WASM_WARN_UNUSED;
WasmResult wasm_resize_vector(struct WasmAllocator*,
void** data,
size_t* size,
size_t* capacity,
size_t desired_size,
size_t elt_byte_size) WASM_WARN_UNUSED;
void* wasm_append_element(struct WasmAllocator*,
void** data,
size_t* size,
size_t* capacity,
size_t elt_byte_size) WASM_WARN_UNUSED;
WasmResult wasm_extend_elements(struct WasmAllocator*,
void** dst,
size_t* dst_size,
size_t* dst_capacity,
const void** src,
size_t src_size,
size_t elt_byte_size) WASM_WARN_UNUSED;
WASM_EXTERN_C_END
#endif /* WASM_VECTOR_H_ */
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