diff options
Diffstat (limited to 'cli/js/compiler_bundler.ts')
| -rw-r--r-- | cli/js/compiler_bundler.ts | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/cli/js/compiler_bundler.ts b/cli/js/compiler_bundler.ts index b9893620a..f8f0b48e8 100644 --- a/cli/js/compiler_bundler.ts +++ b/cli/js/compiler_bundler.ts @@ -42,9 +42,16 @@ export function buildBundle( rootName = normalizeUrl(rootName) .replace(sharedPath, "") .replace(/\.\w+$/i, ""); + // If one of the modules requires support for top-level-await, TypeScript will + // emit the execute function as an async function. When this is the case we + // need to bubble up the TLA to the instantiation, otherwise we instantiate + // synchronously. + const hasTla = data.match(/execute:\sasync\sfunction\s/); let instantiate: string; if (rootExports && rootExports.length) { - instantiate = `const __exp = await __inst("${rootName}");\n`; + instantiate = hasTla + ? `const __exp = await __inst("${rootName}");\n` + : `const __exp = __inst_s("${rootName}");\n`; for (const rootExport of rootExports) { if (rootExport === "default") { instantiate += `export default __exp["${rootExport}"];\n`; @@ -53,7 +60,9 @@ export function buildBundle( } } } else { - instantiate = `await __inst("${rootName}");\n`; + instantiate = hasTla + ? `await __inst("${rootName}");\n` + : `__inst_s("${rootName}");\n`; } return `${SYSTEM_LOADER}\n${data}\n${instantiate}`; } |