LCOV - code coverage report
Current view: top level - src - field-type.cc (source / functions) Hit Total Coverage
Test: app.info Lines: 26 36 72.2 %
Date: 2017-04-26 Functions: 11 14 78.6 %

          Line data    Source code
       1             : // Copyright 2016 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #include "src/field-type.h"
       6             : 
       7             : #include "src/ast/ast-types.h"
       8             : #include "src/handles-inl.h"
       9             : #include "src/objects-inl.h"
      10             : #include "src/ostreams.h"
      11             : 
      12             : namespace v8 {
      13             : namespace internal {
      14             : 
      15             : // static
      16    13971546 : FieldType* FieldType::None() {
      17             :   // Do not Smi::kZero here or for Any(), as that may translate
      18             :   // as `nullptr` which is not a valid value for `this`.
      19    13971546 :   return reinterpret_cast<FieldType*>(Smi::FromInt(2));
      20             : }
      21             : 
      22             : // static
      23    69916972 : FieldType* FieldType::Any() {
      24    69916972 :   return reinterpret_cast<FieldType*>(Smi::FromInt(1));
      25             : }
      26             : 
      27             : // static
      28      465385 : Handle<FieldType> FieldType::None(Isolate* isolate) {
      29      465385 :   return handle(None(), isolate);
      30             : }
      31             : 
      32             : // static
      33    11587902 : Handle<FieldType> FieldType::Any(Isolate* isolate) {
      34    11587905 :   return handle(Any(), isolate);
      35             : }
      36             : 
      37             : // static
      38           0 : FieldType* FieldType::Class(i::Map* map) { return FieldType::cast(map); }
      39             : 
      40             : // static
      41     1604255 : Handle<FieldType> FieldType::Class(i::Handle<i::Map> map, Isolate* isolate) {
      42     1604255 :   return handle(Class(*map), isolate);
      43             : }
      44             : 
      45             : // static
      46    67490749 : FieldType* FieldType::cast(Object* object) {
      47             :   DCHECK(object == None() || object == Any() || object->IsMap());
      48    67490749 :   return reinterpret_cast<FieldType*>(object);
      49             : }
      50             : 
      51    19660018 : bool FieldType::IsClass() { return this->IsMap(); }
      52             : 
      53     1291759 : Handle<i::Map> FieldType::AsClass() {
      54             :   DCHECK(IsClass());
      55             :   i::Map* map = Map::cast(this);
      56     1291759 :   return handle(map, map->GetIsolate());
      57             : }
      58             : 
      59           0 : bool FieldType::NowStable() {
      60           0 :   return !this->IsClass() || this->AsClass()->is_stable();
      61             : }
      62             : 
      63      159260 : bool FieldType::NowIs(FieldType* other) {
      64     2894563 :   if (other->IsAny()) return true;
      65      869797 :   if (IsNone()) return true;
      66      669910 :   if (other->IsNone()) return false;
      67      644387 :   if (IsAny()) return false;
      68             :   DCHECK(IsClass());
      69             :   DCHECK(other->IsClass());
      70      448703 :   return this == other;
      71             : }
      72             : 
      73     5470606 : bool FieldType::NowIs(Handle<FieldType> other) { return NowIs(*other); }
      74             : 
      75       11992 : AstType* FieldType::Convert(Zone* zone) {
      76       11992 :   if (IsAny()) return AstType::NonInternal();
      77       11986 :   if (IsNone()) return AstType::None();
      78             :   DCHECK(IsClass());
      79       23960 :   return AstType::Class(AsClass(), zone);
      80             : }
      81             : 
      82           0 : void FieldType::PrintTo(std::ostream& os) {
      83           0 :   if (IsAny()) {
      84           0 :     os << "Any";
      85           0 :   } else if (IsNone()) {
      86           0 :     os << "None";
      87             :   } else {
      88             :     DCHECK(IsClass());
      89           0 :     os << "Class(" << static_cast<void*>(*AsClass()) << ")";
      90             :   }
      91           0 : }
      92             : 
      93             : }  // namespace internal
      94             : }  // namespace v8

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