[wasm] Disassemble wasm code from script

src/wasm/wasm-debug.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/wasm/wasm-debug.h"
 
 #include "src/assert-scope.h"
 #include "src/debug/debug.h"
 #include "src/factory.h"
 #include "src/isolate.h"
@@ skipping 102 matching lines @@
 
 WasmDebugInfo *WasmDebugInfo::cast(Object *object) {
   DCHECK(IsDebugInfo(object));
   return reinterpret_cast<WasmDebugInfo *>(object);
 }
 
 JSObject *WasmDebugInfo::wasm_object() {
   return JSObject::cast(get(kWasmDebugInfoWasmObj));
 }
 
-bool WasmDebugInfo::SetBreakPoint(int byte_offset) {
-  // TODO(clemensh): Implement this.
-  return false;
-}
-
 Script *WasmDebugInfo::GetFunctionScript(Handle<WasmDebugInfo> debug_info,
                                          int func_index) {
   Isolate *isolate = debug_info->GetIsolate();
   Object *scripts_obj = debug_info->get(kWasmDebugInfoFunctionScripts);
   Handle<FixedArray> scripts;
   if (scripts_obj->IsUndefined(isolate)) {
     int num_functions = wasm::GetNumberOfFunctions(debug_info->wasm_object());
     scripts = isolate->factory()->NewFixedArray(num_functions, TENURED);
     debug_info->set(kWasmDebugInfoFunctionScripts, *scripts);
   } else {
     scripts = handle(FixedArray::cast(scripts_obj), isolate);
   }
 
   DCHECK(func_index >= 0 && func_index < scripts->length());
   Object *script_or_undef = scripts->get(func_index);
   if (!script_or_undef->IsUndefined(isolate)) {
     return Script::cast(script_or_undef);
   }
 
   Handle<Script> script =
       isolate->factory()->NewScript(isolate->factory()->empty_string());
   scripts->set(func_index, *script);
 
   script->set_type(Script::TYPE_WASM);
+  script->set_wasm_object(debug_info->wasm_object());
+  script->set_wasm_function_index(func_index);
+
+  int hash = 0;
+  debug_info->get(kWasmDebugInfoWasmBytesHash)->ToInt32(&hash);
+  char buffer[32];
+  SNPrintF(ArrayVector(buffer), "wasm://%08x/%d", hash, func_index);
+  Handle<String> source_url =
+      isolate->factory()->NewStringFromAsciiChecked(buffer, TENURED);
+  script->set_source_url(*source_url);
 
   int func_bytes_len =
       GetFunctionOffsetAndLength(debug_info, func_index).second;
   Handle<FixedArray> line_ends = isolate->factory()->NewFixedArray(1, TENURED);
   line_ends->set(0, Smi::FromInt(func_bytes_len));
   line_ends->set_map(isolate->heap()->fixed_cow_array_map());
   script->set_line_ends(*line_ends);
 
-  // TODO(clemensh): Register this new script at the debugger.
+  isolate->debug()->OnAfterCompile(script);
 
   return *script;
 }
 
 Handle<String> WasmDebugInfo::DisassembleFunction(
     Handle<WasmDebugInfo> debug_info, int func_index) {
   std::ostringstream disassembly_os;
 
   {
     Vector<const uint8_t> bytes_vec = GetFunctionBytes(debug_info, func_index);
@@ skipping 45 matching lines @@
   int idx = 0;
   for (std::tuple<uint32_t, int, int> elem : offset_table_vec) {
     offset_table->set(idx++, Smi::FromInt(std::get<0>(elem)));
     offset_table->set(idx++, Smi::FromInt(std::get<1>(elem)));
     offset_table->set(idx++, Smi::FromInt(std::get<2>(elem)));
   }
   DCHECK_EQ(idx, offset_table->length());
 
   return offset_table;
 }