test: update wasm/jsapi WPT

test/fixtures/wpt/README.md

@@ -29,7 +29,7 @@ Last update:
 - streams: https://github.com/web-platform-tests/wpt/tree/51750bc8d7/streams
 - url: https://github.com/web-platform-tests/wpt/tree/84caeb6fbd/url
 - user-timing: https://github.com/web-platform-tests/wpt/tree/df24fb604e/user-timing
-- wasm/jsapi: https://github.com/web-platform-tests/wpt/tree/d8dbe6990b/wasm/jsapi
+- wasm/jsapi: https://github.com/web-platform-tests/wpt/tree/cde25e7e3c/wasm/jsapi
 - wasm/webapi: https://github.com/web-platform-tests/wpt/tree/fd1b23eeaa/wasm/webapi
 - WebCryptoAPI: https://github.com/web-platform-tests/wpt/tree/1406b5c0d0/WebCryptoAPI
 - webidl/ecmascript-binding/es-exceptions: https://github.com/web-platform-tests/wpt/tree/a370aad338/webidl/ecmascript-binding/es-exceptions

test/fixtures/wpt/versions.json

@@ -76,7 +76,7 @@
     "path": "user-timing"
   },
   "wasm/jsapi": {
-    "commit": "d8dbe6990bed03ec03beee25069a9347d4c3d6d5",
+    "commit": "cde25e7e3c3b9d2280eb088a3fb9da988793d255",
     "path": "wasm/jsapi"
   },
   "wasm/webapi": {

test/fixtures/wpt/wasm/jsapi/exception/basic.tentative.any.js

@@ -14,11 +14,11 @@ promise_test(async () => {
   const kWasmAnyRef = 0x6f;
   const kSig_v_r = makeSig([kWasmAnyRef], []);
   const builder = new WasmModuleBuilder();
-  const except = builder.addException(kSig_v_r);
+  const tagIndex = builder.addTag(kSig_v_r);
   builder.addFunction("throw_param", kSig_v_r)
     .addBody([
       kExprLocalGet, 0,
-      kExprThrow, except,
+      kExprThrow, tagIndex,
     ])
     .exportFunc();
   const buffer = builder.toBuffer();
@@ -45,11 +45,11 @@ promise_test(async () => {
 
 promise_test(async () => {
   const builder = new WasmModuleBuilder();
-  const except = builder.addException(kSig_v_a);
+  const tagIndex = builder.addTag(kSig_v_a);
   builder.addFunction("throw_null", kSig_v_v)
     .addBody([
       kExprRefNull, kWasmAnyFunc,
-      kExprThrow, except,
+      kExprThrow, tagIndex,
     ])
     .exportFunc();
   const buffer = builder.toBuffer();
@@ -59,11 +59,11 @@ promise_test(async () => {
 
 promise_test(async () => {
   const builder = new WasmModuleBuilder();
-  const except = builder.addException(kSig_v_i);
+  const tagIndex = builder.addTag(kSig_v_i);
   builder.addFunction("throw_int", kSig_v_v)
     .addBody([
       ...wasmI32Const(7),
-      kExprThrow, except,
+      kExprThrow, tagIndex,
     ])
     .exportFunc();
   const buffer = builder.toBuffer();
@@ -74,12 +74,12 @@ promise_test(async () => {
 promise_test(async () => {
   const builder = new WasmModuleBuilder();
   const fnIndex = builder.addImport("module", "fn", kSig_v_v);
-  const except = builder.addException(kSig_v_r);
+  const tagIndex= builder.addTag(kSig_v_r);
   builder.addFunction("catch_exception", kSig_r_v)
     .addBody([
       kExprTry, kWasmStmt,
         kExprCallFunction, fnIndex,
-      kExprCatch, except,
+      kExprCatch, tagIndex,
         kExprReturn,
       kExprEnd,
       kExprRefNull, kWasmAnyRef,

test/fixtures/wpt/wasm/jsapi/exception/constructor.tentative.any.js

@@ -18,8 +18,8 @@ test(() => {
 }, "No arguments");
 
 test(() => {
-  const argument = new WebAssembly.Tag({ parameters: [] });
-  assert_throws_js(TypeError, () => WebAssembly.Exception(argument));
+  const tag = new WebAssembly.Tag({ parameters: [] });
+  assert_throws_js(TypeError, () => WebAssembly.Exception(tag));
 }, "Calling");
 
 test(() => {
@@ -53,10 +53,10 @@ test(() => {
     ["i64", undefined],
   ];
   for (const typeAndArg of typesAndArgs) {
-    const exn = new WebAssembly.Tag({ parameters: [typeAndArg[0]] });
+    const tag = new WebAssembly.Tag({ parameters: [typeAndArg[0]] });
     assert_throws_js(
       TypeError,
-      () => new WebAssembly.Exception(exn, typeAndArg[1])
+      () => new WebAssembly.Exception(tag, typeAndArg[1])
     );
   }
 }, "Invalid exception argument");

test/fixtures/wpt/wasm/jsapi/exception/getArg.tentative.any.js

@@ -20,7 +20,7 @@ test(() => {
 test(() => {
   const tag = new WebAssembly.Tag({ parameters: [] });
   const exn = new WebAssembly.Exception(tag, []);
-  assert_throws_js(TypeError, () => exn.getArg(tag, 1));
+  assert_throws_js(RangeError, () => exn.getArg(tag, 1));
 }, "Index out of bounds");
 
 test(() => {
@@ -43,7 +43,7 @@ test(() => {
   const tag = new WebAssembly.Tag({ parameters: [] });
   const exn = new WebAssembly.Exception(tag, []);
   for (const value of outOfRangeValues) {
-    assert_throws_js(TypeError, () => exn.getArg(tag, value));
+    assert_throws_js(RangeError, () => exn.getArg(tag, value));
   }
 }, "Getting out-of-range argument");
 

test/fixtures/wpt/wasm/jsapi/exception/identity.tentative.any.js

@@ -0,0 +1,61 @@
+// META: global=window,dedicatedworker,jsshell
+// 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");

test/fixtures/wpt/wasm/jsapi/exception/toString.tentative.any.js

@@ -3,8 +3,8 @@
 test(() => {
   const argument = { parameters: [] };
   const tag = new WebAssembly.Tag(argument);
-  const exception = new WebAssembly.Exception(tag, []);
-  assert_class_string(exception, "WebAssembly.Exception");
+  const exn = new WebAssembly.Exception(tag, []);
+  assert_class_string(exn, "WebAssembly.Exception");
 }, "Object.prototype.toString on an Exception");
 
 test(() => {

test/fixtures/wpt/wasm/jsapi/wasm-module-builder.js

@@ -65,7 +65,7 @@ let kElementSectionCode = 9;     // Elements section
 let kCodeSectionCode = 10;       // Function code
 let kDataSectionCode = 11;       // Data segments
 let kDataCountSectionCode = 12;  // Data segment count (between Element & Code)
-let kExceptionSectionCode = 13;  // Exception section (between Global & Export)
+let kTagSectionCode = 13;        // Tag section (between Memory & Global)
 
 // Name section types
 let kModuleNameCode = 0;
@@ -104,13 +104,13 @@ let kExternalFunction = 0;
 let kExternalTable = 1;
 let kExternalMemory = 2;
 let kExternalGlobal = 3;
-let kExternalException = 4;
+let kExternalTag = 4;
 
 let kTableZero = 0;
 let kMemoryZero = 0;
 let kSegmentZero = 0;
 
-let kExceptionAttribute = 0;
+let kTagAttribute = 0;
 
 // Useful signatures
 let kSig_i_i = makeSig([kWasmI32], [kWasmI32]);
@@ -681,15 +681,15 @@ class WasmModuleBuilder {
     this.exports = [];
     this.globals = [];
     this.tables = [];
-    this.exceptions = [];
+    this.tags = [];
     this.functions = [];
     this.element_segments = [];
     this.data_segments = [];
     this.explicit = [];
     this.num_imported_funcs = 0;
     this.num_imported_globals = 0;
     this.num_imported_tables = 0;
-    this.num_imported_exceptions = 0;
+    this.num_imported_tags = 0;
     return this;
   }
 
@@ -752,10 +752,10 @@ class WasmModuleBuilder {
     return table;
   }
 
-  addException(type) {
+  addTag(type) {
     let type_index = (typeof type) == "number" ? type : this.addType(type);
-    let except_index = this.exceptions.length + this.num_imported_exceptions;
-    this.exceptions.push(type_index);
+    let except_index = this.tags.length + this.num_imported_tags;
+    this.tags.push(type_index);
     return except_index;
   }
 
@@ -804,14 +804,14 @@ class WasmModuleBuilder {
     return this.num_imported_tables++;
   }
 
-  addImportedException(module, name, type) {
-    if (this.exceptions.length != 0) {
-      throw new Error('Imported exceptions must be declared before local ones');
+  addImportedTag(module, name, type) {
+    if (this.tags.length != 0) {
+      throw new Error('Imported tags must be declared before local ones');
     }
     let type_index = (typeof type) == "number" ? type : this.addType(type);
-    let o = {module: module, name: name, kind: kExternalException, type: type_index};
+    let o = {module: module, name: name, kind: kExternalTag, type: type_index};
     this.imports.push(o);
-    return this.num_imported_exceptions++;
+    return this.num_imported_tags++;
   }
 
   addExport(name, index) {
@@ -938,8 +938,8 @@ class WasmModuleBuilder {
             section.emit_u8(has_max ? 1 : 0); // flags
             section.emit_u32v(imp.initial); // initial
             if (has_max) section.emit_u32v(imp.maximum); // maximum
-          } else if (imp.kind == kExternalException) {
-            section.emit_u32v(kExceptionAttribute);
+          } else if (imp.kind == kExternalTag) {
+            section.emit_u32v(kTagAttribute);
             section.emit_u32v(imp.type);
           } else {
             throw new Error("unknown/unsupported import kind " + imp.kind);
@@ -1036,13 +1036,13 @@ class WasmModuleBuilder {
       });
     }
 
-    // Add exceptions.
-    if (wasm.exceptions.length > 0) {
-      if (debug) print("emitting exceptions @ " + binary.length);
-      binary.emit_section(kExceptionSectionCode, section => {
-        section.emit_u32v(wasm.exceptions.length);
-        for (let type of wasm.exceptions) {
-          section.emit_u32v(kExceptionAttribute);
+    // Add tags.
+    if (wasm.tags.length > 0) {
+      if (debug) print("emitting tags @ " + binary.length);
+      binary.emit_section(kTagSectionCode, section => {
+        section.emit_u32v(wasm.tags.length);
+        for (let type of wasm.tags) {
+          section.emit_u32v(kTagAttribute);
           section.emit_u32v(type);
         }
       });