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Portable not-so-smart Heap

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This commit is contained in:
dcodeIO
2017-12-11 03:31:35 +01:00
parent d0b189b437
commit b5ffaf36cd
4 changed files with 54 additions and 13 deletions
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18
src/glue/js.js
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@ -1,4 +1,4 @@
require("../../portable-assembly"); // not inherited from tsconfig by ts-node otherwise :(
require("../../portable-assembly");
// Copy Binaryen exports to global scope
var globalScope = typeof window !== "undefined" && window || typeof global !== "undefined" && global || self;
@ -13,9 +13,17 @@ for (var key in binaryen)
globalScope[key] = binaryen[key];
// Use Binaryen's heap
Object.defineProperties(globalScope['Heap'] = {
allocate: binaryen._malloc,
dispose: binaryen._free
Object.defineProperties(globalScope["Heap"] = {
allocate: function allocate(size) {
if (!size) return 0; // should be safe in our case
return binaryen._malloc(size);
},
dispose: function dispose(ptr) {
if (ptr) binaryen._free(ptr);
},
copy: function copy(dest, src, n) {
return binaryen._memcpy(dest, src, n);
}
}, {
free: { get: function() { return binaryen.HEAPU8.length; } },
used: { get: function() { return 0; } },
@ -24,7 +32,7 @@ Object.defineProperties(globalScope['Heap'] = {
globalScope["store"] = function store(ptr, val) {
binaryen.HEAPU8[ptr] = val;
};
globalScope["load"] = function load_u8(ptr) {
globalScope["load"] = function load(ptr) {
return binaryen.HEAPU8[ptr];
};