fluencelabs/assemblyscript
1
0
Fork 0
mirror of https://github.com/fluencelabs/assemblyscript synced 2025-06-23 03:31:44 +00:00
Code Issues Projects Releases Wiki Activity

take a step back

Browse Source
This commit is contained in:
dcode
2019-03-14 04:33:58 +01:00
parent e38f627c8b
commit 6163a73ab5
30 changed files with 645 additions and 1287 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
std/assembly/memory.ts
View File

@ -1,5 +1,7 @@
import { memcmp, memmove, memset } from "./util/memory";
@builtin export declare const HEAP_BASE: usize;
/** Memory manager interface. */
export namespace memory {
@ -7,15 +9,15 @@ export namespace memory {
@builtin export declare function size(): i32;
/** Grows the memory by the given size in pages and returns the previous size in pages. */
@builtin @unsafe export declare function grow(pages: i32): i32;
@unsafe @builtin export declare function grow(pages: i32): i32;
/** Fills a section in memory with the specified byte value. */
@builtin @unsafe @inline export function fill(dst: usize, c: u8, n: usize): void {
@unsafe @builtin export function fill(dst: usize, c: u8, n: usize): void {
memset(dst, c, n); // fallback if "bulk-memory" isn't enabled
}
/** Copies a section of memory to another. Has move semantics. */
@builtin @unsafe @inline export function copy(dst: usize, src: usize, n: usize): void {
@unsafe @builtin export function copy(dst: usize, src: usize, n: usize): void {
memmove(dst, src, n); // fallback if "bulk-memory" isn't enabled
}
@ -30,24 +32,22 @@ export namespace memory {
}
/** Dynamically allocates a section of memory and returns its address. */
@stub @inline export function allocate(size: usize): usize {
ERROR("stub: missing memory manager");
@unsafe export function allocate(size: usize): usize {
if (isDefined(__memory_allocate)) return __memory_allocate(size);
else ERROR("missing implementation: memory.allocate");
return <usize>unreachable();
}
/** Dynamically frees a section of memory by the previously allocated address. */
@stub @unsafe @inline export function free(ptr: usize): void {
ERROR("stub: missing memory manager");
@unsafe export function free(ptr: usize): void {
if (isDefined(__memory_free)) __memory_free(ptr);
else ERROR("missing implementation: memory.free");
}
/** Resets the memory to its initial state. Arena allocator only. */
@stub @unsafe @inline export function reset(): void {
ERROR("stub: not supported by memory manager");
}
/** Compares a section of memory to another. */
@inline export function compare(vl: usize, vr: usize, n: usize): i32 {
return memcmp(vl, vr, n);
@unsafe export function reset(): void {
if (isDefined(__memory_reset)) __memory_reset();
else ERROR("missing implementation: memory.reset");
}
/** Repeats a section of memory at a specific address. */
@ -59,4 +59,9 @@ export namespace memory {
index += srcLength;
}
}
/** Compares a section of memory to another. */
@inline export function compare(vl: usize, vr: usize, n: usize): i32 {
return memcmp(vl, vr, n);
}
}