46 lines
1.9 KiB
JavaScript
46 lines
1.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.wrapExports = exports.wrapAsyncExport = exports.wrapAsyncImport = void 0;
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const util_1 = require("./wasi/util");
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const webassembly_1 = require("./webassembly");
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function checkWebAssemblyFunction() {
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const WebAssemblyFunction = webassembly_1._WebAssembly.Function;
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if (typeof WebAssemblyFunction !== 'function') {
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throw new Error('WebAssembly.Function is not supported in this environment.' +
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' If you are using V8 based browser like Chrome, try to specify' +
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' --js-flags="--wasm-staging --experimental-wasm-stack-switching"');
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}
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return WebAssemblyFunction;
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}
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/** @public */
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function wrapAsyncImport(f, parameterType, returnType) {
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const WebAssemblyFunction = checkWebAssemblyFunction();
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if (typeof f !== 'function') {
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throw new TypeError('Function required');
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}
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const parameters = parameterType.slice(0);
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parameters.unshift('externref');
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return new WebAssemblyFunction({ parameters, results: returnType }, f, { suspending: 'first' });
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}
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exports.wrapAsyncImport = wrapAsyncImport;
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/** @public */
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function wrapAsyncExport(f) {
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const WebAssemblyFunction = checkWebAssemblyFunction();
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if (typeof f !== 'function') {
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throw new TypeError('Function required');
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}
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return new WebAssemblyFunction({ parameters: [...WebAssemblyFunction.type(f).parameters.slice(1)], results: ['externref'] }, f, { promising: 'first' });
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}
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exports.wrapAsyncExport = wrapAsyncExport;
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/** @public */
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function wrapExports(exports, needWrap) {
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return (0, util_1.wrapInstanceExports)(exports, (exportValue, name) => {
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let ignore = typeof exportValue !== 'function';
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if (Array.isArray(needWrap)) {
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ignore = ignore || (needWrap.indexOf(name) === -1);
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}
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return ignore ? exportValue : wrapAsyncExport(exportValue);
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});
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}
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exports.wrapExports = wrapExports;
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//# sourceMappingURL=jspi.js.map
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