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// META: global=window,dedicatedworker,jsshell,shadowrealm
// META: script=/wasm/jsapi/assertions.js
// META: script=/wasm/jsapi/wasm-module-builder.js
test(() => {
const tag = new WebAssembly.Tag({ parameters: ["i32"] });
const exn = new WebAssembly.Exception(tag, [42]);
const exn_same_payload = new WebAssembly.Exception(tag, [42]);
const exn_diff_payload = new WebAssembly.Exception(tag, [53]);
const builder = new WasmModuleBuilder();
const jsfuncIndex = builder.addImport("module", "jsfunc", kSig_v_v);
const tagIndex = builder.addImportedTag("module", "tag", kSig_v_i);
const imports = {
module: {
jsfunc: function() { throw exn; },
tag: tag
}
};
builder
.addFunction("catch_rethrow", kSig_v_v)
.addBody([
kExprTry, kWasmStmt,
kExprCallFunction, jsfuncIndex,
kExprCatch, tagIndex,
kExprDrop,
kExprRethrow, 0x00,
kExprEnd
])
.exportFunc();
builder
.addFunction("catch_all_rethrow", kSig_v_v)
.addBody([
kExprTry, kWasmStmt,
kExprCallFunction, jsfuncIndex,
kExprCatchAll,
kExprRethrow, 0x00,
kExprEnd
])
.exportFunc();
const buffer = builder.toBuffer();
WebAssembly.instantiate(buffer, imports).then(result => {
try {
result.instance.exports.catch_rethrow();
} catch (e) {
assert_equals(e, exn);
assert_not_equals(e, exn_same_payload);
assert_not_equals(e, exn_diff_payload);
}
try {
result.instance.exports.catch_all_rethrow();
} catch (e) {
assert_equals(e, exn);
assert_not_equals(e, exn_same_payload);
assert_not_equals(e, exn_diff_payload);
}
});
}, "Identity check");
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