OLD type

src/scopes.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/v8.h"
 
 #include "src/accessors.h"
 #include "src/bootstrapper.h"
 #include "src/messages.h"
 #include "src/parser.h"
@@ skipping 152 matching lines @@
   illegal_redecl_ = nullptr;
   scope_inside_with_ = false;
   scope_contains_with_ = false;
   scope_calls_eval_ = false;
   scope_uses_arguments_ = false;
   scope_uses_super_property_ = false;
   asm_module_ = false;
   asm_function_ = outer_scope != NULL && outer_scope->asm_module_;
   // Inherit the language mode from the parent scope.
   language_mode_ = outer_scope != NULL ? outer_scope->language_mode_ : SLOPPY;
+  asm_mode_ = (outer_scope == NULL || outer_scope->asm_mode_ == ASM_NO)
+      ? ASM_NO
+      : (scope_type == FUNCTION_SCOPE ? ASM_FUNCTION : outer_scope->asm_mode_);
   outer_scope_calls_sloppy_eval_ = false;
   inner_scope_calls_eval_ = false;
   inner_scope_uses_arguments_ = false;
-  force_eager_compilation_ = false;
+  force_eager_compilation_ = asm_mode_ == ASM_FUNCTION;
   force_context_allocation_ = (outer_scope != NULL && !is_function_scope())
       ? outer_scope->has_forced_context_allocation() : false;
   num_var_or_const_ = 0;
   num_stack_slots_ = 0;
   num_heap_slots_ = 0;
   num_modules_ = 0;
   module_var_ = NULL,
   rest_parameter_ = NULL;
   rest_index_ = -1;
   scope_info_ = scope_info;
   start_position_ = RelocInfo::kNoPosition;
   end_position_ = RelocInfo::kNoPosition;
   if (!scope_info.is_null()) {
     scope_calls_eval_ = scope_info->CallsEval();
     language_mode_ = scope_info->language_mode();
+    asm_mode_ = scope_info->asm_mode();
     block_scope_is_class_scope_ = scope_info->block_scope_is_class_scope();
     function_kind_ = scope_info->function_kind();
   }
 }
 
 
 Scope* Scope::DeserializeScopeChain(Isolate* isolate, Zone* zone,
                                     Context* context, Scope* script_scope) {
   // Reconstruct the outer scope chain from a closure's context chain.
   Scope* current_scope = NULL;
@@ skipping 712 matching lines @@
 
   // Scope info.
   if (HasTrivialOuterContext()) {
     Indent(n1, "// scope has trivial outer context\n");
   }
   if (is_strong(language_mode())) {
     Indent(n1, "// strong mode scope\n");
   } else if (is_strict(language_mode())) {
     Indent(n1, "// strict mode scope\n");
   }
+  if (asm_mode() == ASM_FUNCTION) {
+    Indent(n1, "// asm function\n");
+  } else if (asm_mode() == ASM_MODULE) {
+    Indent(n1, "// asm module\n");
+  }
   if (scope_inside_with_) Indent(n1, "// scope inside 'with'\n");
   if (scope_contains_with_) Indent(n1, "// scope contains 'with'\n");
   if (scope_calls_eval_) Indent(n1, "// scope calls 'eval'\n");
   if (scope_uses_arguments_) Indent(n1, "// scope uses 'arguments'\n");
   if (scope_uses_super_property_)
     Indent(n1, "// scope uses 'super' property\n");
   if (inner_scope_uses_arguments_) {
     Indent(n1, "// inner scope uses 'arguments'\n");
   }
   if (outer_scope_calls_sloppy_eval_) {
@@ skipping 346 matching lines @@
       inner_scope_calls_eval_ = true;
     }
     // If the inner scope is an arrow function, propagate the flags tracking
     // usage of arguments/super/this, but do not propagate them out from normal
     // functions.
     if (!inner->is_function_scope() || inner->is_arrow_scope()) {
       if (inner->scope_uses_arguments_ || inner->inner_scope_uses_arguments_) {
         inner_scope_uses_arguments_ = true;
       }
     }
+    // TODO(bradnelson):
+    // Do we want to prevent propagating if this is an ASM function?
     if (inner->force_eager_compilation_) {
       force_eager_compilation_ = true;
     }
     if (asm_module_ && inner->scope_type() == FUNCTION_SCOPE) {
       inner->asm_function_ = true;
     }
   }
 }
 
 
@@ skipping 264 matching lines @@
 }
 
 
 int Scope::ContextLocalCount() const {
   if (num_heap_slots() == 0) return 0;
   return num_heap_slots() - Context::MIN_CONTEXT_SLOTS -
       (function_ != NULL && function_->proxy()->var()->IsContextSlot() ? 1 : 0);
 }
 }  // namespace internal
 }  // namespace v8