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1 // Copyright 2012 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/v8.h" | |
6 | |
7 #include "src/interface.h" | |
8 | |
9 #include "src/ast-value-factory.h" | |
10 | |
11 namespace v8 { | |
12 namespace internal { | |
13 | |
14 // --------------------------------------------------------------------------- | |
15 // Addition. | |
16 | |
17 #ifdef DEBUG | |
18 // Current nesting depth for debug output. | |
19 class Nesting { | |
20 public: | |
21 Nesting() { current_ += 2; } | |
22 ~Nesting() { current_ -= 2; } | |
23 static int current() { return current_; } | |
24 private: | |
25 static int current_; | |
26 }; | |
27 | |
28 int Nesting::current_ = 0; | |
29 #endif | |
30 | |
31 | |
32 void Interface::Add(const AstRawString* name, Zone* zone, bool* ok) { | |
33 void* key = const_cast<AstRawString*>(name); | |
34 | |
35 #ifdef DEBUG | |
36 if (FLAG_print_interface_details) { | |
37 PrintF("%*s# Adding...\n", Nesting::current(), ""); | |
38 PrintF("%*sthis = ", Nesting::current(), ""); | |
39 this->Print(Nesting::current()); | |
40 PrintF("%*s%.*s : ", Nesting::current(), "", name->length(), | |
41 name->raw_data()); | |
42 } | |
43 #endif | |
44 | |
45 ZoneHashMap** map = &exports_; | |
46 ZoneAllocationPolicy allocator(zone); | |
47 | |
48 if (*map == nullptr) { | |
49 *map = new(zone->New(sizeof(ZoneHashMap))) | |
50 ZoneHashMap(ZoneHashMap::PointersMatch, | |
51 ZoneHashMap::kDefaultHashMapCapacity, allocator); | |
52 } | |
53 | |
54 ZoneHashMap::Entry* p = | |
55 (*map)->Lookup(key, name->hash(), !IsFrozen(), allocator); | |
56 if (p == nullptr || p->value != nullptr) { | |
57 *ok = false; | |
58 } | |
59 | |
60 p->value = key; | |
61 | |
62 #ifdef DEBUG | |
63 if (FLAG_print_interface_details) { | |
64 PrintF("%*sthis' = ", Nesting::current(), ""); | |
65 this->Print(Nesting::current()); | |
66 PrintF("%*s# Added.\n", Nesting::current(), ""); | |
67 } | |
68 #endif | |
69 } | |
70 | |
71 | |
72 // --------------------------------------------------------------------------- | |
73 // Printing. | |
74 | |
75 #ifdef DEBUG | |
76 void Interface::Print(int n) { | |
77 int n0 = n > 0 ? n : 0; | |
78 | |
79 if (FLAG_print_interface_details) { | |
80 PrintF("%p ", static_cast<void*>(this)); | |
81 } | |
82 | |
83 PrintF("module %d %s{", Index(), IsFrozen() ? "" : "(unresolved) "); | |
84 ZoneHashMap* map = exports_; | |
85 if (map == nullptr || map->occupancy() == 0) { | |
86 PrintF("}\n"); | |
87 } else if (n < 0 || n0 >= 2 * FLAG_print_interface_depth) { | |
88 // Avoid infinite recursion on cyclic types. | |
89 PrintF("...}\n"); | |
90 } else { | |
91 PrintF("\n"); | |
92 for (ZoneHashMap::Entry* p = map->Start(); p != nullptr; p = map->Next(p)) { | |
93 String* name = *static_cast<String**>(p->key); | |
94 PrintF("%*s%s : ", n0 + 2, "", name->ToAsciiArray()); | |
95 } | |
96 PrintF("%*s}\n", n0, ""); | |
97 } | |
98 } | |
99 #endif | |
100 | |
101 } } // namespace v8::internal | |
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