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Initial new rt integration

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This commit is contained in:
dcode
2019-05-12 13:50:28 +02:00
parent dd2bdd0383
commit ba1a0c2369
52 changed files with 1066 additions and 2985 deletions
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69
std/assembly/rt/common.ts
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@ -12,10 +12,22 @@
// @ts-ignore: decorator
@inline export const DEBUG = true;
/** Common block structure. */
@unmanaged export class CommonBlock {
// ╒════════════════ Common block layout (32-bit) ═════════════════╕
// 3 2 1
// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 bits
// ├─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┤
// │ MM info │ -16
// ├───────────────────────────────────────────────────────────────┤
// │ GC info │ -12
// ├───────────────────────────────────────────────────────────────┤
// │ runtime id │ -8
// ├───────────────────────────────────────────────────────────────┤
// │ runtime size │ -4
// ╞═══════════════════════════════════════════════════════════════╡
// │ ... │ ref
@unmanaged export class BLOCK {
/** Memory manager info. */
mmInfo: usize; // WASM64 might need adaption
mmInfo: usize; // WASM64 needs adaption
/** Garbage collector info. */
gcInfo: u32;
/** Runtime class id. */
@ -24,16 +36,53 @@
rtSize: u32;
}
/////////////////////////////////// Type information interface ////////////////////////////////////
import { RTTI_BASE } from "../runtime";
import { RTTIData } from "../common/rtti";
// @ts-ignore: decorator
@inline export const BLOCK_OVERHEAD = (offsetof<BLOCK>() + AL_MASK) & ~AL_MASK;
// @ts-ignore: decorator
@global @unsafe
function __rt_typeinfo(id: u32): u32 {
var ptr: usize = RTTI_BASE;
@inline export const BLOCK_MAXSIZE: usize = (1 << 30) - BLOCK_OVERHEAD;
/////////////////////////////////// Type information interface ////////////////////////////////////
import { RTTI_BASE } from "builtins";
import { RTTIData, RTTIFlags } from "common/rtti";
// @ts-ignore: decorator
@unsafe @global
export function __typeinfo(id: u32): RTTIFlags {
var ptr = RTTI_BASE;
return !id || id > load<u32>(ptr)
? unreachable()
: changetype<RTTIData>(ptr + id * offsetof<RTTIData>()).flags;
}
// @ts-ignore: decorator
@unsafe @global
export function __instanceof(ref: usize, superId: u32): bool { // keyword
var id = changetype<BLOCK>(ref - BLOCK_OVERHEAD).rtId;
var ptr = RTTI_BASE;
if (id && id <= load<u32>(ptr)) {
do if (id == superId) return true;
while (id = changetype<RTTIData>(ptr + id * offsetof<RTTIData>()).base);
}
return false;
}
///////////////////////////////////////////// Helpers /////////////////////////////////////////////
import { idof } from "builtins";
import { ArrayBufferView } from "arraybuffer";
// @ts-ignore: decorator
@unsafe @global
export function __allocArray(length: i32, alignLog2: usize, id: u32, data: usize = 0): usize {
var array = __alloc(offsetof<i32[]>(), id);
var bufferSize = <usize>length << alignLog2;
var buffer = __alloc(bufferSize, idof<ArrayBuffer>());
changetype<ArrayBufferView>(array).data = changetype<ArrayBuffer>(buffer); // TODO/RT: retains
changetype<ArrayBufferView>(array).dataStart = buffer;
changetype<ArrayBufferView>(array).dataLength = bufferSize;
store<i32>(changetype<usize>(array), length, offsetof<i32[]>("length_"));
if (data) memory.copy(buffer, data, bufferSize);
return array;
}