|
|
|
@ -27,9 +27,18 @@ |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (!global.fs && global.require) { |
|
|
|
|
global.fs = require("fs"); |
|
|
|
|
const fs = require("fs"); |
|
|
|
|
if (Object.keys(fs) !== 0) { |
|
|
|
|
global.fs = fs; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const enosys = () => { |
|
|
|
|
const err = new Error("not implemented"); |
|
|
|
|
err.code = "ENOSYS"; |
|
|
|
|
return err; |
|
|
|
|
}; |
|
|
|
|
|
|
|
|
|
if (!global.fs) { |
|
|
|
|
let outputBuf = ""; |
|
|
|
|
global.fs = { |
|
|
|
@ -45,27 +54,53 @@ |
|
|
|
|
}, |
|
|
|
|
write(fd, buf, offset, length, position, callback) { |
|
|
|
|
if (offset !== 0 || length !== buf.length || position !== null) { |
|
|
|
|
throw new Error("not implemented"); |
|
|
|
|
callback(enosys()); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
const n = this.writeSync(fd, buf); |
|
|
|
|
callback(null, n); |
|
|
|
|
}, |
|
|
|
|
open(path, flags, mode, callback) { |
|
|
|
|
const err = new Error("not implemented"); |
|
|
|
|
err.code = "ENOSYS"; |
|
|
|
|
callback(err); |
|
|
|
|
}, |
|
|
|
|
read(fd, buffer, offset, length, position, callback) { |
|
|
|
|
const err = new Error("not implemented"); |
|
|
|
|
err.code = "ENOSYS"; |
|
|
|
|
callback(err); |
|
|
|
|
}, |
|
|
|
|
fsync(fd, callback) { |
|
|
|
|
callback(null); |
|
|
|
|
}, |
|
|
|
|
chmod(path, mode, callback) { callback(enosys()); }, |
|
|
|
|
chown(path, uid, gid, callback) { callback(enosys()); }, |
|
|
|
|
close(fd, callback) { callback(enosys()); }, |
|
|
|
|
fchmod(fd, mode, callback) { callback(enosys()); }, |
|
|
|
|
fchown(fd, uid, gid, callback) { callback(enosys()); }, |
|
|
|
|
fstat(fd, callback) { callback(enosys()); }, |
|
|
|
|
fsync(fd, callback) { callback(null); }, |
|
|
|
|
ftruncate(fd, length, callback) { callback(enosys()); }, |
|
|
|
|
lchown(path, uid, gid, callback) { callback(enosys()); }, |
|
|
|
|
link(path, link, callback) { callback(enosys()); }, |
|
|
|
|
lstat(path, callback) { callback(enosys()); }, |
|
|
|
|
mkdir(path, perm, callback) { callback(enosys()); }, |
|
|
|
|
open(path, flags, mode, callback) { callback(enosys()); }, |
|
|
|
|
read(fd, buffer, offset, length, position, callback) { callback(enosys()); }, |
|
|
|
|
readdir(path, callback) { callback(enosys()); }, |
|
|
|
|
readlink(path, callback) { callback(enosys()); }, |
|
|
|
|
rename(from, to, callback) { callback(enosys()); }, |
|
|
|
|
rmdir(path, callback) { callback(enosys()); }, |
|
|
|
|
stat(path, callback) { callback(enosys()); }, |
|
|
|
|
symlink(path, link, callback) { callback(enosys()); }, |
|
|
|
|
truncate(path, length, callback) { callback(enosys()); }, |
|
|
|
|
unlink(path, callback) { callback(enosys()); }, |
|
|
|
|
utimes(path, atime, mtime, callback) { callback(enosys()); }, |
|
|
|
|
}; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (!global.process) { |
|
|
|
|
global.process = { |
|
|
|
|
getuid() { return -1; }, |
|
|
|
|
getgid() { return -1; }, |
|
|
|
|
geteuid() { return -1; }, |
|
|
|
|
getegid() { return -1; }, |
|
|
|
|
getgroups() { throw enosys(); }, |
|
|
|
|
pid: -1, |
|
|
|
|
ppid: -1, |
|
|
|
|
umask() { throw enosys(); }, |
|
|
|
|
cwd() { throw enosys(); }, |
|
|
|
|
chdir() { throw enosys(); }, |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (!global.crypto) { |
|
|
|
|
const nodeCrypto = require("crypto"); |
|
|
|
|
global.crypto = { |
|
|
|
@ -113,24 +148,19 @@ |
|
|
|
|
this._scheduledTimeouts = new Map(); |
|
|
|
|
this._nextCallbackTimeoutID = 1; |
|
|
|
|
|
|
|
|
|
const mem = () => { |
|
|
|
|
// The buffer may change when requesting more memory.
|
|
|
|
|
return new DataView(this._inst.exports.mem.buffer); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const setInt64 = (addr, v) => { |
|
|
|
|
mem().setUint32(addr + 0, v, true); |
|
|
|
|
mem().setUint32(addr + 4, Math.floor(v / 4294967296), true); |
|
|
|
|
this.mem.setUint32(addr + 0, v, true); |
|
|
|
|
this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const getInt64 = (addr) => { |
|
|
|
|
const low = mem().getUint32(addr + 0, true); |
|
|
|
|
const high = mem().getInt32(addr + 4, true); |
|
|
|
|
const low = this.mem.getUint32(addr + 0, true); |
|
|
|
|
const high = this.mem.getInt32(addr + 4, true); |
|
|
|
|
return low + high * 4294967296; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const loadValue = (addr) => { |
|
|
|
|
const f = mem().getFloat64(addr, true); |
|
|
|
|
const f = this.mem.getFloat64(addr, true); |
|
|
|
|
if (f === 0) { |
|
|
|
|
return undefined; |
|
|
|
|
} |
|
|
|
@ -138,66 +168,58 @@ |
|
|
|
|
return f; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const id = mem().getUint32(addr, true); |
|
|
|
|
const id = this.mem.getUint32(addr, true); |
|
|
|
|
return this._values[id]; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const storeValue = (addr, v) => { |
|
|
|
|
const nanHead = 0x7FF80000; |
|
|
|
|
|
|
|
|
|
if (typeof v === "number") { |
|
|
|
|
if (typeof v === "number" && v !== 0) { |
|
|
|
|
if (isNaN(v)) { |
|
|
|
|
mem().setUint32(addr + 4, nanHead, true); |
|
|
|
|
mem().setUint32(addr, 0, true); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
if (v === 0) { |
|
|
|
|
mem().setUint32(addr + 4, nanHead, true); |
|
|
|
|
mem().setUint32(addr, 1, true); |
|
|
|
|
this.mem.setUint32(addr + 4, nanHead, true); |
|
|
|
|
this.mem.setUint32(addr, 0, true); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
mem().setFloat64(addr, v, true); |
|
|
|
|
this.mem.setFloat64(addr, v, true); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
switch (v) { |
|
|
|
|
case undefined: |
|
|
|
|
mem().setFloat64(addr, 0, true); |
|
|
|
|
return; |
|
|
|
|
case null: |
|
|
|
|
mem().setUint32(addr + 4, nanHead, true); |
|
|
|
|
mem().setUint32(addr, 2, true); |
|
|
|
|
return; |
|
|
|
|
case true: |
|
|
|
|
mem().setUint32(addr + 4, nanHead, true); |
|
|
|
|
mem().setUint32(addr, 3, true); |
|
|
|
|
return; |
|
|
|
|
case false: |
|
|
|
|
mem().setUint32(addr + 4, nanHead, true); |
|
|
|
|
mem().setUint32(addr, 4, true); |
|
|
|
|
return; |
|
|
|
|
if (v === undefined) { |
|
|
|
|
this.mem.setFloat64(addr, 0, true); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
let ref = this._refs.get(v); |
|
|
|
|
if (ref === undefined) { |
|
|
|
|
ref = this._values.length; |
|
|
|
|
this._values.push(v); |
|
|
|
|
this._refs.set(v, ref); |
|
|
|
|
let id = this._ids.get(v); |
|
|
|
|
if (id === undefined) { |
|
|
|
|
id = this._idPool.pop(); |
|
|
|
|
if (id === undefined) { |
|
|
|
|
id = this._values.length; |
|
|
|
|
} |
|
|
|
|
this._values[id] = v; |
|
|
|
|
this._goRefCounts[id] = 0; |
|
|
|
|
this._ids.set(v, id); |
|
|
|
|
} |
|
|
|
|
this._goRefCounts[id]++; |
|
|
|
|
let typeFlag = 0; |
|
|
|
|
switch (typeof v) { |
|
|
|
|
case "object": |
|
|
|
|
if (v !== null) { |
|
|
|
|
typeFlag = 1; |
|
|
|
|
} |
|
|
|
|
break; |
|
|
|
|
case "string": |
|
|
|
|
typeFlag = 1; |
|
|
|
|
typeFlag = 2; |
|
|
|
|
break; |
|
|
|
|
case "symbol": |
|
|
|
|
typeFlag = 2; |
|
|
|
|
typeFlag = 3; |
|
|
|
|
break; |
|
|
|
|
case "function": |
|
|
|
|
typeFlag = 3; |
|
|
|
|
typeFlag = 4; |
|
|
|
|
break; |
|
|
|
|
} |
|
|
|
|
mem().setUint32(addr + 4, nanHead | typeFlag, true); |
|
|
|
|
mem().setUint32(addr, ref, true); |
|
|
|
|
this.mem.setUint32(addr + 4, nanHead | typeFlag, true); |
|
|
|
|
this.mem.setUint32(addr, id, true); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
const loadSlice = (addr) => { |
|
|
|
@ -232,11 +254,13 @@ |
|
|
|
|
|
|
|
|
|
// func wasmExit(code int32)
|
|
|
|
|
"runtime.wasmExit": (sp) => { |
|
|
|
|
const code = mem().getInt32(sp + 8, true); |
|
|
|
|
const code = this.mem.getInt32(sp + 8, true); |
|
|
|
|
this.exited = true; |
|
|
|
|
delete this._inst; |
|
|
|
|
delete this._values; |
|
|
|
|
delete this._refs; |
|
|
|
|
delete this._goRefCounts; |
|
|
|
|
delete this._ids; |
|
|
|
|
delete this._idPool; |
|
|
|
|
this.exit(code); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
@ -244,20 +268,25 @@ |
|
|
|
|
"runtime.wasmWrite": (sp) => { |
|
|
|
|
const fd = getInt64(sp + 8); |
|
|
|
|
const p = getInt64(sp + 16); |
|
|
|
|
const n = mem().getInt32(sp + 24, true); |
|
|
|
|
const n = this.mem.getInt32(sp + 24, true); |
|
|
|
|
fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n)); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func nanotime() int64
|
|
|
|
|
"runtime.nanotime": (sp) => { |
|
|
|
|
// func resetMemoryDataView()
|
|
|
|
|
"runtime.resetMemoryDataView": (sp) => { |
|
|
|
|
this.mem = new DataView(this._inst.exports.mem.buffer); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func nanotime1() int64
|
|
|
|
|
"runtime.nanotime1": (sp) => { |
|
|
|
|
setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func walltime() (sec int64, nsec int32)
|
|
|
|
|
"runtime.walltime": (sp) => { |
|
|
|
|
// func walltime1() (sec int64, nsec int32)
|
|
|
|
|
"runtime.walltime1": (sp) => { |
|
|
|
|
const msec = (new Date).getTime(); |
|
|
|
|
setInt64(sp + 8, msec / 1000); |
|
|
|
|
mem().setInt32(sp + 16, (msec % 1000) * 1000000, true); |
|
|
|
|
this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func scheduleTimeoutEvent(delay int64) int32
|
|
|
|
@ -276,12 +305,12 @@ |
|
|
|
|
}, |
|
|
|
|
getInt64(sp + 8) + 1, // setTimeout has been seen to fire up to 1 millisecond early
|
|
|
|
|
)); |
|
|
|
|
mem().setInt32(sp + 16, id, true); |
|
|
|
|
this.mem.setInt32(sp + 16, id, true); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func clearTimeoutEvent(id int32)
|
|
|
|
|
"runtime.clearTimeoutEvent": (sp) => { |
|
|
|
|
const id = mem().getInt32(sp + 8, true); |
|
|
|
|
const id = this.mem.getInt32(sp + 8, true); |
|
|
|
|
clearTimeout(this._scheduledTimeouts.get(id)); |
|
|
|
|
this._scheduledTimeouts.delete(id); |
|
|
|
|
}, |
|
|
|
@ -291,6 +320,18 @@ |
|
|
|
|
crypto.getRandomValues(loadSlice(sp + 8)); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func finalizeRef(v ref)
|
|
|
|
|
"syscall/js.finalizeRef": (sp) => { |
|
|
|
|
const id = this.mem.getUint32(sp + 8, true); |
|
|
|
|
this._goRefCounts[id]--; |
|
|
|
|
if (this._goRefCounts[id] === 0) { |
|
|
|
|
const v = this._values[id]; |
|
|
|
|
this._values[id] = null; |
|
|
|
|
this._ids.delete(v); |
|
|
|
|
this._idPool.push(id); |
|
|
|
|
} |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func stringVal(value string) ref
|
|
|
|
|
"syscall/js.stringVal": (sp) => { |
|
|
|
|
storeValue(sp + 24, loadString(sp + 8)); |
|
|
|
@ -308,6 +349,11 @@ |
|
|
|
|
Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32)); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func valueDelete(v ref, p string)
|
|
|
|
|
"syscall/js.valueDelete": (sp) => { |
|
|
|
|
Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16)); |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
|
// func valueIndex(v ref, i int) ref
|
|
|
|
|
"syscall/js.valueIndex": (sp) => { |
|
|
|
|
storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16))); |
|
|
|
@ -327,10 +373,10 @@ |
|
|
|
|
const result = Reflect.apply(m, v, args); |
|
|
|
|
sp = this._inst.exports.getsp(); // see comment above
|
|
|
|
|
storeValue(sp + 56, result); |
|
|
|
|
mem().setUint8(sp + 64, 1); |
|
|
|
|
this.mem.setUint8(sp + 64, 1); |
|
|
|
|
} catch (err) { |
|
|
|
|
storeValue(sp + 56, err); |
|
|
|
|
mem().setUint8(sp + 64, 0); |
|
|
|
|
this.mem.setUint8(sp + 64, 0); |
|
|
|
|
} |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
@ -342,10 +388,10 @@ |
|
|
|
|
const result = Reflect.apply(v, undefined, args); |
|
|
|
|
sp = this._inst.exports.getsp(); // see comment above
|
|
|
|
|
storeValue(sp + 40, result); |
|
|
|
|
mem().setUint8(sp + 48, 1); |
|
|
|
|
this.mem.setUint8(sp + 48, 1); |
|
|
|
|
} catch (err) { |
|
|
|
|
storeValue(sp + 40, err); |
|
|
|
|
mem().setUint8(sp + 48, 0); |
|
|
|
|
this.mem.setUint8(sp + 48, 0); |
|
|
|
|
} |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
@ -357,10 +403,10 @@ |
|
|
|
|
const result = Reflect.construct(v, args); |
|
|
|
|
sp = this._inst.exports.getsp(); // see comment above
|
|
|
|
|
storeValue(sp + 40, result); |
|
|
|
|
mem().setUint8(sp + 48, 1); |
|
|
|
|
this.mem.setUint8(sp + 48, 1); |
|
|
|
|
} catch (err) { |
|
|
|
|
storeValue(sp + 40, err); |
|
|
|
|
mem().setUint8(sp + 48, 0); |
|
|
|
|
this.mem.setUint8(sp + 48, 0); |
|
|
|
|
} |
|
|
|
|
}, |
|
|
|
|
|
|
|
|
@ -384,35 +430,35 @@ |
|
|
|
|
|
|
|
|
|
// func valueInstanceOf(v ref, t ref) bool
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"syscall/js.valueInstanceOf": (sp) => { |
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mem().setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16)); |
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this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0); |
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}, |
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// func copyBytesToGo(dst []byte, src ref) (int, bool)
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"syscall/js.copyBytesToGo": (sp) => { |
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const dst = loadSlice(sp + 8); |
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const src = loadValue(sp + 32); |
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if (!(src instanceof Uint8Array)) { |
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mem().setUint8(sp + 48, 0); |
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if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) { |
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this.mem.setUint8(sp + 48, 0); |
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return; |
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} |
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const toCopy = src.subarray(0, dst.length); |
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dst.set(toCopy); |
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setInt64(sp + 40, toCopy.length); |
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mem().setUint8(sp + 48, 1); |
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this.mem.setUint8(sp + 48, 1); |
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}, |
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// func copyBytesToJS(dst ref, src []byte) (int, bool)
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"syscall/js.copyBytesToJS": (sp) => { |
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const dst = loadValue(sp + 8); |
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const src = loadSlice(sp + 16); |
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if (!(dst instanceof Uint8Array)) { |
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mem().setUint8(sp + 48, 0); |
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if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) { |
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this.mem.setUint8(sp + 48, 0); |
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return; |
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} |
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const toCopy = src.subarray(0, dst.length); |
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dst.set(toCopy); |
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setInt64(sp + 40, toCopy.length); |
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mem().setUint8(sp + 48, 1); |
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this.mem.setUint8(sp + 48, 1); |
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}, |
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"debug": (value) => { |
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@ -424,7 +470,8 @@ |
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async run(instance) { |
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this._inst = instance; |
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this._values = [ // TODO: garbage collection
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this.mem = new DataView(this._inst.exports.mem.buffer); |
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this._values = [ // JS values that Go currently has references to, indexed by reference id
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NaN, |
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0, |
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null, |
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@ -433,10 +480,17 @@ |
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global, |
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this, |
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]; |
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this._refs = new Map(); |
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this.exited = false; |
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const mem = new DataView(this._inst.exports.mem.buffer) |
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this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id
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this._ids = new Map([ // mapping from JS values to reference ids
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[0, 1], |
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[null, 2], |
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[true, 3], |
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[false, 4], |
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[global, 5], |
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[this, 6], |
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]); |
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this._idPool = []; // unused ids that have been garbage collected
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this.exited = false; // whether the Go program has exited
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// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
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let offset = 4096; |
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@ -444,7 +498,7 @@ |
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const strPtr = (str) => { |
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|
const ptr = offset; |
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|
const bytes = encoder.encode(str + "\0"); |
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|
new Uint8Array(mem.buffer, offset, bytes.length).set(bytes); |
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new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes); |
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offset += bytes.length; |
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|
if (offset % 8 !== 0) { |
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|
offset += 8 - (offset % 8); |
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|
@ -458,17 +512,18 @@ |
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|
this.argv.forEach((arg) => { |
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|
|
argvPtrs.push(strPtr(arg)); |
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|
}); |
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|
|
argvPtrs.push(0); |
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|
|
const keys = Object.keys(this.env).sort(); |
|
|
|
|
argvPtrs.push(keys.length); |
|
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|
|
keys.forEach((key) => { |
|
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|
|
argvPtrs.push(strPtr(`${key}=${this.env[key]}`)); |
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|
|
}); |
|
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|
|
argvPtrs.push(0); |
|
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|
|
const argv = offset; |
|
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|
|
argvPtrs.forEach((ptr) => { |
|
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|
|
mem.setUint32(offset, ptr, true); |
|
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|
|
mem.setUint32(offset + 4, 0, true); |
|
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|
|
this.mem.setUint32(offset, ptr, true); |
|
|
|
|
this.mem.setUint32(offset + 4, 0, true); |
|
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|
|
offset += 8; |
|
|
|
|
}); |
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