Use WasmValue in inspector

Convert wasm-value into internal::WasmValue, then to debug::WasmValue.
This is then copied into a CDP protocol object via a new class,
WasmValueMirror.

Bug: v8:10347
Change-Id: I5778d2cc5701caf82e4a97ac329303e510695b74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2151130Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67908}

src/api/api.cc

@@ -10311,8 +10311,8 @@ int debug::WasmValue::value_type() {
 v8::Local<v8::Array> debug::WasmValue::bytes() {
   i::Handle<i::WasmValue> obj = Utils::OpenHandle(this);
   // Should only be called on i32, i64, f32, f64, s128.
-  DCHECK_GE(1, obj->value_type());
-  DCHECK_LE(5, obj->value_type());
+  DCHECK_LE(1, obj->value_type());
+  DCHECK_GE(5, obj->value_type());
 
   i::Isolate* isolate = obj->GetIsolate();
   i::Handle<i::Object> bytes_or_ref(obj->bytes_or_ref(), isolate);

src/inspector/value-mirror.cc

@@ -39,6 +39,26 @@ V8InternalValueType v8InternalValueTypeFrom(v8::Local<v8::Context> context,
   return inspectedContext->getInternalType(value.As<v8::Object>());
 }
 
+template <typename ResultType>
+ResultType unpackWasmValue(v8::Local<v8::Context> context,
+                           v8::Local<v8::Array> array) {
+  ResultType result;
+  constexpr int kSize = sizeof(result);
+  uint8_t buffer[kSize];
+  for (int i = 0; i < kSize; i++) {
+    v8::Local<v8::Int32> i32 =
+        array->Get(context, i).ToLocalChecked().As<v8::Int32>();
+    buffer[i] = static_cast<uint8_t>(i32->Value());
+  }
+  memcpy(&result, buffer, kSize);
+  return result;
+}
+
+// Partial list of Wasm's ValueType, copied here to avoid including internal
+// header. Using an unscoped enumeration here to allow implicit conversions from
+// int. Keep in sync with ValueType::Kind in wasm/value-type.h.
+enum WasmValueType { kStmt, kI32, kI64, kF32, kF64, kS128, kAnyRef };
+
 Response toProtocolValue(v8::Local<v8::Context> context,
                          v8::Local<v8::Value> value, int maxDepth,
                          std::unique_ptr<protocol::Value>* result) {
@@ -128,6 +148,49 @@ Response toProtocolValue(v8::Local<v8::Context> context,
     *result = std::move(jsonObject);
     return Response::Success();
   }
+
+  if (v8::debug::WasmValue::IsWasmValue(value)) {
+    auto wasmValue = value.As<v8::debug::WasmValue>();
+
+    // Convert serializable Wasm values (i32, f32, f64) into protocol values.
+    // Not all i64 values are representable by double, so always represent it as
+    // a String here.
+    switch (wasmValue->value_type()) {
+      case kI32: {
+        *result = protocol::FundamentalValue::create(
+            unpackWasmValue<int32_t>(context, wasmValue->bytes()));
+        break;
+      }
+      case kI64: {
+        *result = protocol::StringValue::create(String16::fromInteger64(
+            unpackWasmValue<int64_t>(context, wasmValue->bytes())));
+        break;
+      }
+      case kF32: {
+        *result = protocol::FundamentalValue::create(
+            unpackWasmValue<float>(context, wasmValue->bytes()));
+        break;
+      }
+      case kF64: {
+        *result = protocol::FundamentalValue::create(
+            unpackWasmValue<double>(context, wasmValue->bytes()));
+        break;
+      }
+      case kAnyRef: {
+        std::unique_ptr<protocol::Value> anyrefValue;
+        Response response =
+            toProtocolValue(context, wasmValue->ref(), maxDepth, &anyrefValue);
+        if (!response.IsSuccess()) return response;
+        *result = std::move(anyrefValue);
+        break;
+      }
+      default: {
+        UNIMPLEMENTED();
+      }
+    }
+    return Response::Success();
+  }
+
   return Response::ServerError("Object couldn't be returned by value");
 }
 
@@ -398,6 +461,112 @@ class PrimitiveValueMirror final : public ValueMirror {
   String16 m_subtype;
 };
 
+class WasmValueMirror final : public ValueMirror {
+ public:
+  explicit WasmValueMirror(v8::Local<v8::debug::WasmValue> value)
+      : m_value(value) {}
+
+  v8::Local<v8::Value> v8Value() const override { return m_value; }
+
+  Response buildRemoteObject(
+      v8::Local<v8::Context> context, WrapMode mode,
+      std::unique_ptr<RemoteObject>* result) const override {
+    bool serializable;
+    String16 descriptionValue = description(context, &serializable);
+    *result = RemoteObject::create()
+                  .setType(RemoteObject::TypeEnum::Wasm)
+                  .setSubtype(subtype())
+                  .setDescription(descriptionValue)
+                  .build();
+    if (serializable) {
+      std::unique_ptr<protocol::Value> protocolValue;
+      toProtocolValue(context, m_value, &protocolValue);
+      (*result)->setValue(std::move(protocolValue));
+    } else {
+      (*result)->setUnserializableValue(descriptionValue);
+    }
+    return Response::Success();
+  }
+
+  void buildPropertyPreview(
+      v8::Local<v8::Context> context, const String16& name,
+      std::unique_ptr<PropertyPreview>* result) const override {
+    bool serializable;
+    *result = PropertyPreview::create()
+                  .setName(name)
+                  .setType(RemoteObject::TypeEnum::Wasm)
+                  .setSubtype(subtype())
+                  .setValue(description(context, &serializable))
+                  .build();
+  }
+
+  void buildEntryPreview(
+      v8::Local<v8::Context> context, int* nameLimit, int* indexLimit,
+      std::unique_ptr<ObjectPreview>* preview) const override {
+    bool serializable;
+    *preview =
+        ObjectPreview::create()
+            .setType(RemoteObject::TypeEnum::Wasm)
+            .setSubtype(subtype())
+            .setDescription(description(context, &serializable))
+            .setOverflow(false)
+            .setProperties(std::make_unique<protocol::Array<PropertyPreview>>())
+            .build();
+  }
+
+ private:
+  String16 subtype() const {
+    switch (m_value->value_type()) {
+      case kI32:
+        return RemoteObject::SubtypeEnum::I32;
+      case kI64:
+        return RemoteObject::SubtypeEnum::I64;
+      case kF32:
+        return RemoteObject::SubtypeEnum::F32;
+      case kF64:
+        return RemoteObject::SubtypeEnum::F64;
+      case kAnyRef:
+        return RemoteObject::SubtypeEnum::Anyref;
+      default:
+        UNREACHABLE();
+    }
+  }
+
+  String16 description(v8::Local<v8::Context> context,
+                       bool* serializable) const {
+    *serializable = true;
+    switch (m_value->value_type()) {
+      case kI32: {
+        return String16::fromInteger(
+            unpackWasmValue<int32_t>(context, m_value->bytes()));
+      }
+      case kI64: {
+        *serializable = false;
+        return String16::fromInteger64(
+            unpackWasmValue<int64_t>(context, m_value->bytes()));
+      }
+      case kF32: {
+        return String16::fromDouble(
+            unpackWasmValue<float>(context, m_value->bytes()));
+      }
+      case kF64: {
+        return String16::fromDouble(
+            unpackWasmValue<double>(context, m_value->bytes()));
+      }
+      case kAnyRef: {
+        return descriptionForObject(context->GetIsolate(),
+                                    m_value->ref().As<v8::Object>());
+      }
+      default: {
+        *serializable = false;
+        return String16("Unknown");
+      }
+    }
+  }
+
+  v8::Local<v8::debug::WasmValue> m_value;
+};
+
 class NumberMirror final : public ValueMirror {
  public:
   explicit NumberMirror(v8::Local<v8::Number> value) : m_value(value) {}
@@ -1603,8 +1772,7 @@ std::unique_ptr<ValueMirror> ValueMirror::create(v8::Local<v8::Context> context,
     return std::make_unique<SymbolMirror>(value.As<v8::Symbol>());
   }
   if (v8::debug::WasmValue::IsWasmValue(value)) {
-    // TODO(v8:10347) WasmValue is not created anywhere yet.
-    UNIMPLEMENTED();
+    return std::make_unique<WasmValueMirror>(value.As<v8::debug::WasmValue>());
   }
   auto clientSubtype = (value->IsUndefined() || value->IsObject())
                            ? clientFor(context)->valueSubtype(value)

src/wasm/wasm-debug.cc

@@ -50,28 +50,43 @@ Handle<String> PrintFToOneByteString(Isolate* isolate, const char* format,
 }
 
 Handle<Object> WasmValueToValueObject(Isolate* isolate, WasmValue value) {
+  Handle<ByteArray> bytes;
   switch (value.type().kind()) {
-    case ValueType::kI32:
-      if (Smi::IsValid(value.to<int32_t>()))
-        return handle(Smi::FromInt(value.to<int32_t>()), isolate);
-      return PrintFToOneByteString<false>(isolate, "%d", value.to<int32_t>());
+    case ValueType::kI32: {
+      int32_t val = value.to_i32();
+      bytes = isolate->factory()->NewByteArray(sizeof(val));
+      memcpy(bytes->GetDataStartAddress(), &val, sizeof(val));
+      break;
+    }
     case ValueType::kI64: {
-      int64_t i64 = value.to<int64_t>();
-      int32_t i32 = static_cast<int32_t>(i64);
-      if (i32 == i64 && Smi::IsValid(i32))
-        return handle(Smi::FromIntptr(i32), isolate);
-      return PrintFToOneByteString<false>(isolate, "%" PRId64, i64);
+      int64_t val = value.to_i64();
+      bytes = isolate->factory()->NewByteArray(sizeof(val));
+      memcpy(bytes->GetDataStartAddress(), &val, sizeof(val));
+      break;
+    }
+    case ValueType::kF32: {
+      float val = value.to_f32();
+      bytes = isolate->factory()->NewByteArray(sizeof(val));
+      memcpy(bytes->GetDataStartAddress(), &val, sizeof(val));
+      break;
+    }
+    case ValueType::kF64: {
+      double val = value.to_f64();
+      bytes = isolate->factory()->NewByteArray(sizeof(val));
+      memcpy(bytes->GetDataStartAddress(), &val, sizeof(val));
+      break;
     }
-    case ValueType::kF32:
-      return isolate->factory()->NewNumber(value.to<float>());
-    case ValueType::kF64:
-      return isolate->factory()->NewNumber(value.to<double>());
-    case ValueType::kAnyRef:
-      return value.to_anyref();
-    default:
+    case ValueType::kAnyRef: {
+      return isolate->factory()->NewWasmValue(
+          static_cast<int32_t>(value.type().kind()), value.to_anyref());
+    }
+    default: {
       UNIMPLEMENTED();
       return isolate->factory()->undefined_value();
+    }
   }
+  return isolate->factory()->NewWasmValue(
+      static_cast<int32_t>(value.type().kind()), bytes);
 }
 
 MaybeHandle<String> GetLocalNameString(Isolate* isolate,

test/inspector/debugger/wasm-inspect-many-registers.js

@@ -29,6 +29,11 @@ function instantiate(bytes) {
 const evalWithUrl = (code, url) => Protocol.Runtime.evaluate(
     {'expression': code + '\n//# sourceURL=v8://test/' + url});
 
+function getWasmValue(value) {
+  return typeof (value.value) === 'undefined' ? value.unserializableValue :
+                                                value.value;
+}
+
 Protocol.Debugger.onPaused(async msg => {
   let loc = msg.params.callFrames[0].location;
   let line = [`Paused at offset ${loc.columnNumber}`];
@@ -42,11 +47,11 @@ Protocol.Debugger.onPaused(async msg => {
       for (var value of scope_properties.result.result) {
         let msg = await Protocol.Runtime.getProperties(
           {objectId: value.value.objectId});
-        let str = msg.result.result.map(elem => elem.value.value).join(', ');
+        let str = msg.result.result.map(elem => getWasmValue(elem.value)).join(', ');
         line.push(`${value.name}: [${str}]`);
       }
     } else {
-      let str = scope_properties.result.result.map(elem => elem.value.value).join(', ');
+      let str = scope_properties.result.result.map(elem => getWasmValue(elem.value)).join(', ');
       line.push(`${scope.type}: [${str}]`);
     }
   }

test/inspector/debugger/wasm-scope-info-expected.txt

@@ -13,15 +13,15 @@ Script wasm://wasm/d374ef0a byte offset 69: Wasm opcode 0x41
 Scope:
 at func (0:69):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 4 (number), "var1": 0 (number), "i64_local": 0 (number), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 4 (i32), "var1": 0 (i32), "i64_local": 0 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -32,16 +32,16 @@ Script wasm://wasm/d374ef0a byte offset 71: Wasm opcode 0x21
 Scope:
 at func (0:71):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 4 (number), "var1": 0 (number), "i64_local": 0 (number), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 4 (i32), "var1": 0 (i32), "i64_local": 0 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 11 (number)
+   0: 11 (i32)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -52,15 +52,15 @@ Script wasm://wasm/d374ef0a byte offset 73: Wasm opcode 0x41
 Scope:
 at func (0:73):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 0 (number), "i64_local": 0 (number), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 0 (i32), "i64_local": 0 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -71,16 +71,16 @@ Script wasm://wasm/d374ef0a byte offset 75: Wasm opcode 0x21
 Scope:
 at func (0:75):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 0 (number), "i64_local": 0 (number), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 0 (i32), "i64_local": 0 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 47 (number)
+   0: 47 (i32)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -91,15 +91,15 @@ Script wasm://wasm/d374ef0a byte offset 77: Wasm opcode 0x42
 Scope:
 at func (0:77):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": 0 (number), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": 0 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -110,16 +110,16 @@ Script wasm://wasm/d374ef0a byte offset 88: Wasm opcode 0x21
 Scope:
 at func (0:88):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": 0 (number), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": 0 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 9223372036854775807 (string)
+   0: 9223372036854775807 (i64)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -130,15 +130,15 @@ Script wasm://wasm/d374ef0a byte offset 90: Wasm opcode 0x42
 Scope:
 at func (0:90):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": 9223372036854775807 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": 9223372036854775807 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -149,16 +149,16 @@ Script wasm://wasm/d374ef0a byte offset 101: Wasm opcode 0x21
 Scope:
 at func (0:101):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": 9223372036854775807 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": 9223372036854775807 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: -9223372036854775808 (string)
+   0: -9223372036854775808 (i64)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -169,15 +169,15 @@ Script wasm://wasm/d374ef0a byte offset 103: Wasm opcode 0x41
 Scope:
 at func (0:103):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -188,16 +188,16 @@ Script wasm://wasm/d374ef0a byte offset 105: Wasm opcode 0xb8
 Scope:
 at func (0:105):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 1 (number)
+   0: 1 (i32)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -208,16 +208,16 @@ Script wasm://wasm/d374ef0a byte offset 106: Wasm opcode 0x41
 Scope:
 at func (0:106):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 1 (number)
+   0: 1 (f64)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -228,17 +228,17 @@ Script wasm://wasm/d374ef0a byte offset 108: Wasm opcode 0xb8
 Scope:
 at func (0:108):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 1 (number)
-   1: 7 (number)
+   0: 1 (f64)
+   1: 7 (i32)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -249,17 +249,17 @@ Script wasm://wasm/d374ef0a byte offset 109: Wasm opcode 0xa3
 Scope:
 at func (0:109):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 1 (number)
-   1: 7 (number)
+   0: 1 (f64)
+   1: 7 (f64)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -270,16 +270,16 @@ Script wasm://wasm/d374ef0a byte offset 110: Wasm opcode 0x21
 Scope:
 at func (0:110):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0 (f64)
  - scope (wasm-expression-stack):
-   0: 0.14285714285714285 (number)
+   0: 0.14285714285714285 (f64)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -290,15 +290,15 @@ Script wasm://wasm/d374ef0a byte offset 112: Wasm opcode 0x41
 Scope:
 at func (0:112):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0.14285714285714285 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0.14285714285714285 (f64)
  - scope (wasm-expression-stack):
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -309,16 +309,16 @@ Script wasm://wasm/d374ef0a byte offset 114: Wasm opcode 0x24
 Scope:
 at func (0:114):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0.14285714285714285 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0.14285714285714285 (f64)
  - scope (wasm-expression-stack):
-   0: 15 (number)
+   0: 15 (i32)
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -329,15 +329,15 @@ Script wasm://wasm/d374ef0a byte offset 116: Wasm opcode 0x0b
 Scope:
 at func (0:116):
  - scope (module):
-   globals: "global0": 15 (number)
+   globals: "global0": 15 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32Arg": 11 (number), "var1": 47 (number), "i64_local": -9223372036854775808 (string), "unicode☼f64": 0.14285714285714285 (number)
+   locals: "0": 0 (f64), "i32Arg": 11 (i32), "var1": 47 (i32), "i64_local": -9223372036854775808 (i64), "unicode☼f64": 0.14285714285714285 (f64)
  - scope (wasm-expression-stack):
 at call_func (0:58):
  - scope (module):
-   globals: "global0": 15 (number)
+   globals: "global0": 15 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -348,9 +348,9 @@ Script wasm://wasm/d374ef0a byte offset 60: Wasm opcode 0x0b
 Scope:
 at call_func (0:60):
  - scope (module):
-   globals: "global0": 15 (number)
+   globals: "global0": 15 (i32)
  - scope (local):
-   locals: "var0": 4 (number), "var1": 7.199999809265137 (number)
+   locals: "var0": 4 (i32), "var1": 7.199999809265137 (f32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):

test/inspector/debugger/wasm-scope-info-liftoff-expected.txt

@@ -14,23 +14,23 @@ Script wasm://wasm/c4eb034a byte offset 85: Wasm opcode 0x20
 Scope:
 at C (interpreted) (0:85):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "i32_arg": 42 (number), "i32_local": 0 (number)
+   locals: "i32_arg": 42 (i32), "i32_local": 0 (i32)
  - scope (wasm-expression-stack):
 at B (liftoff) (0:76):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
-   1: 3 (number)
+   0: 42 (i32)
+   1: 3 (i32)
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -41,24 +41,24 @@ Script wasm://wasm/c4eb034a byte offset 87: Wasm opcode 0x24
 Scope:
 at C (interpreted) (0:87):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "i32_arg": 42 (number), "i32_local": 0 (number)
+   locals: "i32_arg": 42 (i32), "i32_local": 0 (i32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
+   0: 42 (i32)
 at B (liftoff) (0:76):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
-   1: 3 (number)
+   0: 42 (i32)
+   1: 3 (i32)
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 0 (number)
+   globals: "global0": 0 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -69,23 +69,23 @@ Script wasm://wasm/c4eb034a byte offset 89: Wasm opcode 0x41
 Scope:
 at C (interpreted) (0:89):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "i32_arg": 42 (number), "i32_local": 0 (number)
+   locals: "i32_arg": 42 (i32), "i32_local": 0 (i32)
  - scope (wasm-expression-stack):
 at B (liftoff) (0:76):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
-   1: 3 (number)
+   0: 42 (i32)
+   1: 3 (i32)
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -96,24 +96,24 @@ Script wasm://wasm/c4eb034a byte offset 91: Wasm opcode 0x21
 Scope:
 at C (interpreted) (0:91):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "i32_arg": 42 (number), "i32_local": 0 (number)
+   locals: "i32_arg": 42 (i32), "i32_local": 0 (i32)
  - scope (wasm-expression-stack):
-   0: 47 (number)
+   0: 47 (i32)
 at B (liftoff) (0:76):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
-   1: 3 (number)
+   0: 42 (i32)
+   1: 3 (i32)
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -124,23 +124,23 @@ Script wasm://wasm/c4eb034a byte offset 93: Wasm opcode 0x0b
 Scope:
 at C (interpreted) (0:93):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "i32_arg": 42 (number), "i32_local": 47 (number)
+   locals: "i32_arg": 42 (i32), "i32_local": 47 (i32)
  - scope (wasm-expression-stack):
 at B (liftoff) (0:76):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
-   1: 3 (number)
+   0: 42 (i32)
+   1: 3 (i32)
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -151,17 +151,17 @@ Script wasm://wasm/c4eb034a byte offset 78: Wasm opcode 0x1a
 Scope:
 at B (liftoff) (0:78):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
-   1: 3 (number)
+   0: 42 (i32)
+   1: 3 (i32)
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -172,16 +172,16 @@ Script wasm://wasm/c4eb034a byte offset 79: Wasm opcode 0x1a
 Scope:
 at B (liftoff) (0:79):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
-   0: 42 (number)
+   0: 42 (i32)
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -192,15 +192,15 @@ Script wasm://wasm/c4eb034a byte offset 80: Wasm opcode 0x0b
 Scope:
 at B (liftoff) (0:80):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "0": 0 (number), "i32_arg": 42 (number), "i32_local": 0 (number), "f32_local": 7.199999809265137 (number), "var5": 0 (number)
+   locals: "0": 0 (f32), "i32_arg": 42 (i32), "i32_local": 0 (i32), "f32_local": 7.199999809265137 (f32), "var5": 0 (f32)
  - scope (wasm-expression-stack):
 at A (liftoff) (0:54):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):
@@ -211,9 +211,9 @@ Script wasm://wasm/c4eb034a byte offset 56: Wasm opcode 0x0b
 Scope:
 at A (liftoff) (0:56):
  - scope (module):
-   globals: "global0": 42 (number)
+   globals: "global0": 42 (i32)
  - scope (local):
-   locals: "var0": 42 (number)
+   locals: "var0": 42 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
  - scope (global):

test/inspector/debugger/wasm-scope-info-liftoff.js

@@ -149,11 +149,11 @@ async function getScopeValues(value) {
     let msg = await Protocol.Runtime.getProperties({objectId: value.objectId});
     printIfFailure(msg);
     const printProperty = function(elem) {
-      return `"${elem.name}": ${elem.value.value} (${elem.value.type})`;
+      return `"${elem.name}": ${getWasmValue(elem.value)} (${elem.value.subtype})`;
     }
     return msg.result.result.map(printProperty).join(', ');
   }
-  return value.value + ' (' + value.type + ')';
+  return getWasmValue(value) + ' (' + value.subtype + ')';
 }
 
 async function dumpScopeProperties(message) {
@@ -163,3 +163,9 @@ async function dumpScopeProperties(message) {
     InspectorTest.log('   ' + value.name + ': ' + value_str);
   }
 }
+
+function getWasmValue(wasmValue) {
+  return typeof (wasmValue.value) === 'undefined' ?
+      wasmValue.unserializableValue :
+      wasmValue.value;
+}

test/inspector/debugger/wasm-scope-info.js

@@ -147,11 +147,11 @@ async function getScopeValues(value) {
     let msg = await Protocol.Runtime.getProperties({objectId: value.objectId});
     printIfFailure(msg);
     const printProperty = function(elem) {
-      return `"${elem.name}": ${elem.value.value} (${elem.value.type})`;
+      return `"${elem.name}": ${getWasmValue(elem.value)} (${elem.value.subtype})`;
     }
     return msg.result.result.map(printProperty).join(', ');
   }
-  return value.value + ' (' + value.type + ')';
+  return getWasmValue(value) + ' (' + value.subtype + ')';
 }
 
 async function dumpScopeProperties(message) {
@@ -161,3 +161,9 @@ async function dumpScopeProperties(message) {
     InspectorTest.log('   ' + value.name + ': ' + value_str);
   }
 }
+
+function getWasmValue(wasmValue) {
+  return typeof (wasmValue.value) === 'undefined' ?
+      wasmValue.unserializableValue :
+      wasmValue.value;
+}

test/inspector/debugger/wasm-set-breakpoint-liftoff-expected.txt

@@ -13,7 +13,7 @@ at wasm_A (0:38):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -36,7 +36,7 @@ at wasm_A (0:39):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -46,7 +46,7 @@ Scope:
 at wasm_B (0:45):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -56,9 +56,9 @@ Scope:
 at wasm_B (0:47):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
-   0: 3 (number)
+   0: 3 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -67,7 +67,7 @@ Scope:
 at wasm_B (0:49):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -77,9 +77,9 @@ Scope:
 at wasm_B (0:51):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
-   0: 3 (number)
+   0: 3 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -88,10 +88,10 @@ Scope:
 at wasm_B (0:53):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
-   0: 3 (number)
-   1: 1 (number)
+   0: 3 (i32)
+   1: 1 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -100,9 +100,9 @@ Scope:
 at wasm_B (0:54):
  - scope (module):
  - scope (local):
-   locals: "var0": 3 (number)
+   locals: "var0": 3 (i32)
  - scope (wasm-expression-stack):
-   0: 2 (number)
+   0: 2 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -115,7 +115,7 @@ at wasm_A (0:38):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -129,7 +129,7 @@ at wasm_A (0:39):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -139,7 +139,7 @@ Scope:
 at wasm_B (0:45):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -149,9 +149,9 @@ Scope:
 at wasm_B (0:47):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
-   0: 2 (number)
+   0: 2 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -160,7 +160,7 @@ Scope:
 at wasm_B (0:49):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -170,9 +170,9 @@ Scope:
 at wasm_B (0:51):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
-   0: 2 (number)
+   0: 2 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -181,10 +181,10 @@ Scope:
 at wasm_B (0:53):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
-   0: 2 (number)
-   1: 1 (number)
+   0: 2 (i32)
+   1: 1 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -193,9 +193,9 @@ Scope:
 at wasm_B (0:54):
  - scope (module):
  - scope (local):
-   locals: "var0": 2 (number)
+   locals: "var0": 2 (i32)
  - scope (wasm-expression-stack):
-   0: 1 (number)
+   0: 1 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -208,7 +208,7 @@ at wasm_A (0:38):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -222,7 +222,7 @@ at wasm_A (0:39):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -232,7 +232,7 @@ Scope:
 at wasm_B (0:45):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -242,9 +242,9 @@ Scope:
 at wasm_B (0:47):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
-   0: 1 (number)
+   0: 1 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -253,7 +253,7 @@ Scope:
 at wasm_B (0:49):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -263,9 +263,9 @@ Scope:
 at wasm_B (0:51):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
-   0: 1 (number)
+   0: 1 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -274,10 +274,10 @@ Scope:
 at wasm_B (0:53):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
-   0: 1 (number)
-   1: 1 (number)
+   0: 1 (i32)
+   1: 1 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -286,9 +286,9 @@ Scope:
 at wasm_B (0:54):
  - scope (module):
  - scope (local):
-   locals: "var0": 1 (number)
+   locals: "var0": 1 (i32)
  - scope (wasm-expression-stack):
-   0: 0 (number)
+   0: 0 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -301,7 +301,7 @@ at wasm_A (0:38):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 0 (number)
+   locals: "var0": 0 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -315,7 +315,7 @@ at wasm_A (0:39):
 at wasm_B (0:56):
  - scope (module):
  - scope (local):
-   locals: "var0": 0 (number)
+   locals: "var0": 0 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -325,7 +325,7 @@ Scope:
 at wasm_B (0:45):
  - scope (module):
  - scope (local):
-   locals: "var0": 0 (number)
+   locals: "var0": 0 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped
@@ -335,9 +335,9 @@ Scope:
 at wasm_B (0:47):
  - scope (module):
  - scope (local):
-   locals: "var0": 0 (number)
+   locals: "var0": 0 (i32)
  - scope (wasm-expression-stack):
-   0: 0 (number)
+   0: 0 (i32)
 at (anonymous) (0:17):
    -- skipped
 Paused:
@@ -346,7 +346,7 @@ Scope:
 at wasm_B (0:61):
  - scope (module):
  - scope (local):
-   locals: "var0": 0 (number)
+   locals: "var0": 0 (i32)
  - scope (wasm-expression-stack):
 at (anonymous) (0:17):
    -- skipped

test/inspector/debugger/wasm-set-breakpoint-liftoff.js

@@ -103,15 +103,20 @@ Protocol.Debugger.onPaused(async msg => {
   Protocol.Debugger.resume();
 });
 
+function getWasmValue(value) {
+  return typeof (value.value) === 'undefined' ? value.unserializableValue :
+                                                value.value;
+}
+
 async function getScopeValues(value) {
   if (value.type == 'object') {
     let msg = await Protocol.Runtime.getProperties({objectId: value.objectId});
     const printProperty = function(elem) {
-      return `"${elem.name}": ${elem.value.value} (${elem.value.type})`;
+      return `"${elem.name}": ${getWasmValue(elem.value)} (${elem.value.subtype})`;
     }
     return msg.result.result.map(printProperty).join(', ');
   }
-  return value.value + ' (' + value.type + ')';
+  return getWasmValue(value) + ' (' + value.subtype + ')';
 }
 
 (async function test() {