Assign unique IDs to FunctionLiterals

src/compiler.cc

 // Copyright 2012 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/compiler.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "src/asmjs/asm-js.h"
@@ skipping 977 matching lines @@
                                : info->isolate()->counters()->compile();
     HistogramTimerScope timer(rate);
     TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"),
                  parse_info->is_eval() ? "V8.CompileEval" : "V8.Compile");
 
     // Allocate a shared function info object.
     DCHECK_EQ(kNoSourcePosition, lit->function_token_position());
     result = NewSharedFunctionInfoForLiteral(isolate, lit, script);
     result->set_is_toplevel(true);
     parse_info->set_shared_info(result);
+    parse_info->set_function_literal_num(result->function_literal_num());
 
     // Compile the code.
     if (!CompileUnoptimizedCode(info)) {
       return Handle<SharedFunctionInfo>::null();
     }
 
     Handle<String> script_name =
         script->name()->IsString()
             ? Handle<String>(String::cast(script->name()))
             : isolate->factory()->empty_string();
@@ skipping 569 matching lines @@
     // shared function info for this function literal has been created for the
     // first time. It may have already been compiled previously.
     result->set_never_compiled(outer_info->shared_info()->never_compiled());
   }
 
   Zone zone(isolate->allocator(), ZONE_NAME);
   ParseInfo parse_info(&zone, script);
   CompilationInfo info(&parse_info, Handle<JSFunction>::null());
   parse_info.set_literal(literal);
   parse_info.set_shared_info(result);
+  parse_info.set_function_literal_num(result->function_literal_num());
   parse_info.set_language_mode(literal->scope()->language_mode());
   parse_info.set_ast_value_factory(
       outer_info->parse_info()->ast_value_factory());
   parse_info.set_ast_value_factory_owned(false);
 
   if (outer_info->will_serialize()) info.PrepareForSerializing();
   if (outer_info->is_debug()) info.MarkAsDebug();
 
   // If this inner function is already compiled, we don't need to compile
   // again. When compiling for debug, we are not interested in having debug
@@ skipping 124 matching lines @@
     DCHECK(shared->is_compiled());
     function->set_literals(cached.literals);
   } else if (shared->is_compiled()) {
     // TODO(mvstanton): pass pretenure flag to EnsureLiterals.
     JSFunction::EnsureLiterals(function);
   }
 }
 
 }  // namespace internal
 }  // namespace v8