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simplify

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dcode 2019-03-08 22:33:05 +01:00
parent 878ee3f13b
commit 979a0b8f23
1 changed files with 11 additions and 42 deletions
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53
std/assembly/internal/runtime.ts
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@ -89,7 +89,7 @@ export function FREE(ref: usize): void {
}
/** Registers a managed object with GC. */
export function REGISTER<T>(ref: usize): void {
export function REGISTER<T>(ref: usize, parentRef: usize): void {
var header = UNREF(ref);
header.classId = /* TODO: CLASSID<T>() */ 1;
header.reserved2 = 0;
@ -98,49 +98,18 @@ export function REGISTER<T>(ref: usize): void {
// === ArrayBuffer ================================================================================
/** Size of a buffer header, excl. common runtime header. */
@inline export const BUFFER_HEADER_SIZE: usize = (offsetof<ArrayBuffer>() + AL_MASK) & ~AL_MASK;
/** Allocates a new ArrayBuffer and returns a pointer to it. */
@inline export function ALLOC_BUFFER(byteLength: u32): ArrayBuffer {
return changetype<ArrayBuffer>(ALLOC(BUFFER_HEADER_SIZE + byteLength));
}
/** Reallocates an ArrayBuffer if necessary. Returns a pointer to it. */
@inline export function REALLOC_BUFFER(ref: usize, byteLength: u32): ArrayBuffer {
return changetype<ArrayBuffer>(REALLOC(ref, BUFFER_HEADER_SIZE + byteLength));
}
/** Loads a value from a backing ArrayBuffer. */
@inline export function LOAD_BUFFER<T,TOut = T>(buffer: ArrayBuffer, index: i32, byteOffset: i32 = 0): TOut {
return <TOut>load<T>(
changetype<usize>(buffer) + (<usize>index << alignof<T>()) + <usize>byteOffset,
BUFFER_HEADER_SIZE
);
}
/** Stores a value to a backing ArrayBuffer. */
@inline export function STORE_BUFFER<T,TIn = T>(buffer: ArrayBuffer, index: i32, value: TIn, byteOffset: i32 = 0): void {
store<T>(
changetype<usize>(buffer) + (<usize>index << alignof<T>()) + <usize>byteOffset,
value,
BUFFER_HEADER_SIZE
);
export abstract class ArrayBufferBase {
get byteLength(): i32 {
var header = changetype<HEADER>(changetype<usize>(this) - HEADER_SIZE);
return header.payloadSize;
}
}
// === String =====================================================================================
/** Size of a string header, excl. common runtime header. */
@inline export const STRING_HEADER_SIZE: usize = (offsetof<String>() + 1) & ~1; // 2 byte aligned
/** Allocates a new String and returns a pointer to it. */
@inline export function ALLOC_STRING(length: u32): String {
return changetype<String>(ALLOC(STRING_HEADER_SIZE + (length << 1)));
export abstract class StringBase {
get length(): i32 {
var header = changetype<HEADER>(changetype<usize>(this) - HEADER_SIZE);
return header.payloadSize >>> 1;
}
}
/** Reallocates a String if necessary. Returns a pointer to it. */
@inline export function REALLOC_STRING(ref: usize, length: u32): String {
return changetype<String>(REALLOC(ref, STRING_HEADER_SIZE + (length << 1)));
}
// ...