[wasm] Implement frame inspection for interpreted frames

src/wasm/wasm-objects.cc

Index: src/wasm/wasm-objects.cc
diff --git a/src/wasm/wasm-objects.cc b/src/wasm/wasm-objects.cc
index 4779d88d678b500a6b55fa291fde79be8597da77..af6a446dcc896cea32364f9e5e4fefc384e329c1 100644
--- a/src/wasm/wasm-objects.cc
+++ b/src/wasm/wasm-objects.cc
@@ -1119,6 +1119,26 @@ bool WasmCompiledModule::SetBreakPoint(
   return true;
 }
 
+BreakLocation WasmCompiledModule::GetBreakLocation(int position) {
+  DCHECK_LE(0, position);
+  DCHECK_GT(module_bytes()->length(), position);
+  uint8_t opcode = module_bytes()->GetChars()[position];
+  DebugBreakType type;
+  switch (opcode) {
+    case kExprReturn:
+      type = DEBUG_BREAK_SLOT_AT_RETURN;
+      break;
+    case kExprCallFunction:
+    case kExprCallIndirect:
+      type = DEBUG_BREAK_SLOT_AT_CALL;
+      break;
+    default:
+      type = DEBUG_BREAK_SLOT;
+      break;
+  }
+  return BreakLocation(Handle<AbstractCode>::null(), type, position, position);
+}
+
 MaybeHandle<FixedArray> WasmCompiledModule::CheckBreakPoints(
     const BreakLocation& location) {
   Isolate* isolate = GetIsolate();