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// |jit-test| --enable-top-level-await;
// Exercise ModuleEvaluation() concrete method.
load(libdir + "asserts.js");
async function parseAndEvaluate(source) {
let m = parseModule(source);
m.declarationInstantiation();
await m.evaluation();
return m;
}
// Check the evaluation of an empty module succeeds.
(async () => {
await parseAndEvaluate("");
})();
(async () => {
// Check that evaluation returns evaluation promise,
// and promise is always the same.
let m = parseModule("1");
m.declarationInstantiation();
assertEq(typeof m.evaluation(), "object");
assertEq(m.evaluation() instanceof Promise, true);
assertEq(m.evaluation(), m.evaluation());
await m.evaluation();
})();
(async () => {
// Check top level variables are initialized by evaluation.
let m = parseModule("export var x = 2 + 2;");
assertEq(typeof getModuleEnvironmentValue(m, "x"), "undefined");
m.declarationInstantiation();
await m.evaluation();
assertEq(getModuleEnvironmentValue(m, "x"), 4);
})();
(async () => {
let m = parseModule("export let x = 2 * 3;");
m.declarationInstantiation();
await m.evaluation();
assertEq(getModuleEnvironmentValue(m, "x"), 6);
})();
// Set up a module to import from.
let a = registerModule('a',
parseModule(`var x = 1;
export { x };
export default 2;
export function f(x) { return x + 1; }`));
(async () => {
// Check we can evaluate top level definitions.
await parseAndEvaluate("var foo = 1;");
await parseAndEvaluate("let foo = 1;");
await parseAndEvaluate("const foo = 1");
await parseAndEvaluate("function foo() {}");
await parseAndEvaluate("class foo { constructor() {} }");
// Check we can evaluate all module-related syntax.
await parseAndEvaluate("export var foo = 1;");
await parseAndEvaluate("export let foo = 1;");
await parseAndEvaluate("export const foo = 1;");
await parseAndEvaluate("var x = 1; export { x };");
await parseAndEvaluate("export default 1");
await parseAndEvaluate("export default function() {};");
await parseAndEvaluate("export default function foo() {};");
await parseAndEvaluate("import a from 'a';");
await parseAndEvaluate("import { x } from 'a';");
await parseAndEvaluate("import * as ns from 'a';");
await parseAndEvaluate("export * from 'a'");
await parseAndEvaluate("export default class { constructor() {} };");
await parseAndEvaluate("export default class foo { constructor() {} };");
})();
(async () => {
// Test default import
let m = parseModule("import a from 'a'; export { a };")
m.declarationInstantiation();
await m.evaluation()
assertEq(getModuleEnvironmentValue(m, "a"), 2);
})();
(async () => {
// Test named import
let m = parseModule("import { x as y } from 'a'; export { y };")
m.declarationInstantiation();
await m.evaluation();
assertEq(getModuleEnvironmentValue(m, "y"), 1);
})();
(async () => {
// Call exported function
let m = parseModule("import { f } from 'a'; export let x = f(3);")
m.declarationInstantiation();
await m.evaluation();
assertEq(getModuleEnvironmentValue(m, "x"), 4);
})();
(async () => {
// Test importing an indirect export
registerModule('b', parseModule("export { x as z } from 'a';"));
let m = await parseAndEvaluate("import { z } from 'b'; export { z }");
assertEq(getModuleEnvironmentValue(m, "z"), 1);
})();
(async () => {
// Test cyclic dependencies
registerModule('c1', parseModule("export var x = 1; export {y} from 'c2'"));
registerModule('c2', parseModule("export var y = 2; export {x} from 'c1'"));
let m = await parseAndEvaluate(`import { x as x1, y as y1 } from 'c1';
import { x as x2, y as y2 } from 'c2';
export let z = [x1, y1, x2, y2]`);
assertDeepEq(getModuleEnvironmentValue(m, "z"), [1, 2, 1, 2]);
})();
(async () => {
// Import access in functions
let m = await parseModule("import { x } from 'a'; function f() { return x; }")
m.declarationInstantiation();
m.evaluation();
let f = getModuleEnvironmentValue(m, "f");
assertEq(f(), 1);
})();
drainJobQueue();
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