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Autodetect ESM supports during asinit #1685

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Merged
merged 7 commits into from
May 19, 2021
Merged

Autodetect ESM supports during asinit #1685

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b43236a
auto detect ESM support during asinit
MaxGraey Feb 15, 2021
a7229ed
typo
MaxGraey Feb 15, 2021
f073ea2
better
MaxGraey Feb 15, 2021
a39afa0
fix minor low bound
MaxGraey Feb 15, 2021
148c6cd
fix for >= 14
MaxGraey Mar 5, 2021
6fe2273
reorder
MaxGraey Mar 5, 2021
a63f4e0
Update bin/asinit
MaxGraey Mar 8, 2021
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7 changes: 6 additions & 1 deletion bin/asinit
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Original file line number Diff line number Diff line change
Expand Up @@ -377,9 +377,14 @@ function ensurePackageJson() {
function ensureIndexJs() {
console.log("- Making sure that 'index.js' exists...");
if (!fs.existsSync(indexFile)) {
// since node.js v13.2.0 or v12.17.0 we can use ESM without flags
const ver = process.versions.node.split('.');
const maj = parseInt(ver[0]);
const min = parseInt(ver[1]);
const supportESM = maj >= 14 || (maj == 13 && min >= 2) || (maj == 12 && min >= 17);
fs.writeFileSync(indexFile, [
"const fs = require(\"fs\");",
"const loader = require(\"@assemblyscript/loader\");",
"const loader = require(\"@assemblyscript/loader" + (supportESM ? "" : "/umd") + "\");",
"const imports = { /* imports go here */ };",
"const wasmModule = loader.instantiateSync(fs.readFileSync(__dirname + \"/build/optimized.wasm\"), imports);",
"module.exports = wasmModule.exports;"
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