07d720ec41
The detailed heap snapshot has two groups of nodes. The first one is the group for v8 heap nodes and the second one is the group for native objects. At the moment we have two different sets of native objects. There are 'Detached DOM trees' and 'Document DOM trees' type of objects. I think it'd be nice to replace one group containing all native objects with separate groups for different types of native objects. BUG=none TEST=HeapSnapshotRetainedObjectInfo Review URL: https://chromiumcodereview.appspot.com/9223009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10528 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
1165 lines
40 KiB
C++
1165 lines
40 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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//
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// Tests for heap profiler
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#include "v8.h"
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#include "cctest.h"
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#include "heap-profiler.h"
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#include "snapshot.h"
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#include "utils-inl.h"
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#include "../include/v8-profiler.h"
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namespace {
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class NamedEntriesDetector {
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public:
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NamedEntriesDetector()
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: has_A2(false), has_B2(false), has_C2(false) {
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}
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void Apply(i::HeapEntry** entry_ptr) {
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if (IsReachableNodeWithName(*entry_ptr, "A2")) has_A2 = true;
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if (IsReachableNodeWithName(*entry_ptr, "B2")) has_B2 = true;
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if (IsReachableNodeWithName(*entry_ptr, "C2")) has_C2 = true;
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}
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static bool IsReachableNodeWithName(i::HeapEntry* entry, const char* name) {
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return strcmp(name, entry->name()) == 0 && entry->painted_reachable();
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}
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bool has_A2;
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bool has_B2;
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bool has_C2;
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};
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} // namespace
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static const v8::HeapGraphNode* GetGlobalObject(
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const v8::HeapSnapshot* snapshot) {
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CHECK_EQ(2, snapshot->GetRoot()->GetChildrenCount());
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const v8::HeapGraphNode* global_obj =
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snapshot->GetRoot()->GetChild(0)->GetToNode();
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CHECK_EQ(0, strncmp("Object", const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_obj))->name(), 6));
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return global_obj;
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}
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static const v8::HeapGraphNode* GetProperty(const v8::HeapGraphNode* node,
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v8::HeapGraphEdge::Type type,
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const char* name) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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v8::String::AsciiValue prop_name(prop->GetName());
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if (prop->GetType() == type && strcmp(name, *prop_name) == 0)
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return prop->GetToNode();
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}
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return NULL;
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}
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static bool HasString(const v8::HeapGraphNode* node, const char* contents) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kString) {
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v8::String::AsciiValue node_name(node->GetName());
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if (strcmp(contents, *node_name) == 0) return true;
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}
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}
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return false;
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}
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TEST(HeapSnapshot) {
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v8::HandleScope scope;
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LocalContext env2;
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CompileRun(
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"function A2() {}\n"
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"function B2(x) { return function() { return typeof x; }; }\n"
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"function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n"
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"var a2 = new A2();\n"
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"var b2_1 = new B2(a2), b2_2 = new B2(a2);\n"
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"var c2 = new C2(a2);");
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const v8::HeapSnapshot* snapshot_env2 =
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v8::HeapProfiler::TakeSnapshot(v8_str("env2"));
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i::HeapSnapshot* i_snapshot_env2 =
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const_cast<i::HeapSnapshot*>(
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reinterpret_cast<const i::HeapSnapshot*>(snapshot_env2));
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const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2);
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// Paint all nodes reachable from global object.
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i_snapshot_env2->ClearPaint();
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const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_env2))->PaintAllReachable();
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// Verify, that JS global object of env2 has '..2' properties.
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const v8::HeapGraphNode* a2_node =
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GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "a2");
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CHECK_NE(NULL, a2_node);
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CHECK_NE(
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NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "b2_1"));
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CHECK_NE(
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NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "b2_2"));
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CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "c2"));
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NamedEntriesDetector det;
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i_snapshot_env2->IterateEntries(&det);
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CHECK(det.has_A2);
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CHECK(det.has_B2);
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CHECK(det.has_C2);
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}
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TEST(HeapSnapshotObjectSizes) {
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v8::HandleScope scope;
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LocalContext env;
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// -a-> X1 --a
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// x -b-> X2 <-|
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CompileRun(
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"function X(a, b) { this.a = a; this.b = b; }\n"
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"x = new X(new X(), new X());\n"
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"(function() { x.a.a = x.b; })();");
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("sizes"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* x =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "x");
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CHECK_NE(NULL, x);
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const v8::HeapGraphNode* x1 =
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GetProperty(x, v8::HeapGraphEdge::kProperty, "a");
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CHECK_NE(NULL, x1);
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const v8::HeapGraphNode* x2 =
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GetProperty(x, v8::HeapGraphEdge::kProperty, "b");
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CHECK_NE(NULL, x2);
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// Test approximate sizes.
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CHECK_EQ(x->GetSelfSize() * 3, x->GetRetainedSize(false));
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CHECK_EQ(x1->GetSelfSize(), x1->GetRetainedSize(false));
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CHECK_EQ(x2->GetSelfSize(), x2->GetRetainedSize(false));
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// Test exact sizes.
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CHECK_EQ(x->GetSelfSize() * 3, x->GetRetainedSize(true));
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CHECK_EQ(x1->GetSelfSize(), x1->GetRetainedSize(true));
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CHECK_EQ(x2->GetSelfSize(), x2->GetRetainedSize(true));
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}
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TEST(HeapSnapshotEntryChildren) {
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v8::HandleScope scope;
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LocalContext env;
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CompileRun(
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"function A() { }\n"
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"a = new A;");
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("children"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = global->GetChild(i);
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CHECK_EQ(global, prop->GetFromNode());
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}
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const v8::HeapGraphNode* a =
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GetProperty(global, v8::HeapGraphEdge::kProperty, "a");
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CHECK_NE(NULL, a);
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for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = a->GetChild(i);
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CHECK_EQ(a, prop->GetFromNode());
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}
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}
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TEST(HeapSnapshotCodeObjects) {
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v8::HandleScope scope;
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LocalContext env;
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CompileRun(
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"function lazy(x) { return x - 1; }\n"
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"function compiled(x) { return x + 1; }\n"
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"var anonymous = (function() { return function() { return 0; } })();\n"
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"compiled(1)");
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("code"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* compiled =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "compiled");
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CHECK_NE(NULL, compiled);
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CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType());
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const v8::HeapGraphNode* lazy =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "lazy");
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CHECK_NE(NULL, lazy);
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CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType());
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const v8::HeapGraphNode* anonymous =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "anonymous");
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CHECK_NE(NULL, anonymous);
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CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType());
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v8::String::AsciiValue anonymous_name(anonymous->GetName());
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CHECK_EQ("", *anonymous_name);
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// Find references to code.
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const v8::HeapGraphNode* compiled_code =
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GetProperty(compiled, v8::HeapGraphEdge::kInternal, "shared");
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CHECK_NE(NULL, compiled_code);
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const v8::HeapGraphNode* lazy_code =
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GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared");
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CHECK_NE(NULL, lazy_code);
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// Verify that non-compiled code doesn't contain references to "x"
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// literal, while compiled code does. The scope info is stored in FixedArray
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// objects attached to the SharedFunctionInfo.
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bool compiled_references_x = false, lazy_references_x = false;
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for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = compiled_code->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kArray) {
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if (HasString(node, "x")) {
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compiled_references_x = true;
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break;
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}
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}
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}
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for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = lazy_code->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kArray) {
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if (HasString(node, "x")) {
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lazy_references_x = true;
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break;
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}
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}
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}
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CHECK(compiled_references_x);
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CHECK(!lazy_references_x);
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}
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TEST(HeapSnapshotHeapNumbers) {
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v8::HandleScope scope;
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LocalContext env;
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CompileRun(
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"a = 1; // a is Smi\n"
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"b = 2.5; // b is HeapNumber");
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("numbers"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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CHECK_EQ(NULL, GetProperty(global, v8::HeapGraphEdge::kShortcut, "a"));
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const v8::HeapGraphNode* b =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "b");
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CHECK_NE(NULL, b);
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CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType());
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}
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TEST(HeapSnapshotSlicedString) {
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v8::HandleScope scope;
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LocalContext env;
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CompileRun(
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"parent_string = \"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789."
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"123456789.123456789.123456789.123456789.123456789.\";"
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"child_string = parent_string.slice(100);");
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("strings"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* parent_string =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "parent_string");
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CHECK_NE(NULL, parent_string);
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const v8::HeapGraphNode* child_string =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "child_string");
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CHECK_NE(NULL, child_string);
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const v8::HeapGraphNode* parent =
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GetProperty(child_string, v8::HeapGraphEdge::kInternal, "parent");
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CHECK_EQ(parent_string, parent);
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}
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TEST(HeapSnapshotInternalReferences) {
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v8::HandleScope scope;
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v8::Local<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New();
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global_template->SetInternalFieldCount(2);
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LocalContext env(NULL, global_template);
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v8::Handle<v8::Object> global_proxy = env->Global();
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v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
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CHECK_EQ(2, global->InternalFieldCount());
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v8::Local<v8::Object> obj = v8::Object::New();
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global->SetInternalField(0, v8_num(17));
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global->SetInternalField(1, obj);
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("internals"));
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const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
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// The first reference will not present, because it's a Smi.
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CHECK_EQ(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0"));
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// The second reference is to an object.
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CHECK_NE(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "1"));
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}
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// Trying to introduce a check helper for uint64_t causes many
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// overloading ambiguities, so it seems easier just to cast
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// them to a signed type.
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#define CHECK_EQ_UINT64_T(a, b) \
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CHECK_EQ(static_cast<int64_t>(a), static_cast<int64_t>(b))
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#define CHECK_NE_UINT64_T(a, b) \
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CHECK((a) != (b)) // NOLINT
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TEST(HeapEntryIdsAndGC) {
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v8::HandleScope scope;
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LocalContext env;
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CompileRun(
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"function A() {}\n"
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"function B(x) { this.x = x; }\n"
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"var a = new A();\n"
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"var b = new B(a);");
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const v8::HeapSnapshot* snapshot1 =
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v8::HeapProfiler::TakeSnapshot(v8_str("s1"));
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HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
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const v8::HeapSnapshot* snapshot2 =
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v8::HeapProfiler::TakeSnapshot(v8_str("s2"));
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const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
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const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
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CHECK_NE_UINT64_T(0, global1->GetId());
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CHECK_EQ_UINT64_T(global1->GetId(), global2->GetId());
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const v8::HeapGraphNode* A1 =
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GetProperty(global1, v8::HeapGraphEdge::kProperty, "A");
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CHECK_NE(NULL, A1);
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const v8::HeapGraphNode* A2 =
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GetProperty(global2, v8::HeapGraphEdge::kProperty, "A");
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CHECK_NE(NULL, A2);
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CHECK_NE_UINT64_T(0, A1->GetId());
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CHECK_EQ_UINT64_T(A1->GetId(), A2->GetId());
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const v8::HeapGraphNode* B1 =
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GetProperty(global1, v8::HeapGraphEdge::kProperty, "B");
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CHECK_NE(NULL, B1);
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const v8::HeapGraphNode* B2 =
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GetProperty(global2, v8::HeapGraphEdge::kProperty, "B");
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CHECK_NE(NULL, B2);
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CHECK_NE_UINT64_T(0, B1->GetId());
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CHECK_EQ_UINT64_T(B1->GetId(), B2->GetId());
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const v8::HeapGraphNode* a1 =
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GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
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CHECK_NE(NULL, a1);
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const v8::HeapGraphNode* a2 =
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GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
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CHECK_NE(NULL, a2);
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CHECK_NE_UINT64_T(0, a1->GetId());
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CHECK_EQ_UINT64_T(a1->GetId(), a2->GetId());
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const v8::HeapGraphNode* b1 =
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GetProperty(global1, v8::HeapGraphEdge::kProperty, "b");
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CHECK_NE(NULL, b1);
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const v8::HeapGraphNode* b2 =
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GetProperty(global2, v8::HeapGraphEdge::kProperty, "b");
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CHECK_NE(NULL, b2);
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CHECK_NE_UINT64_T(0, b1->GetId());
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CHECK_EQ_UINT64_T(b1->GetId(), b2->GetId());
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}
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TEST(HeapSnapshotRootPreservedAfterSorting) {
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v8::HandleScope scope;
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LocalContext env;
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("s"));
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const v8::HeapGraphNode* root1 = snapshot->GetRoot();
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const_cast<i::HeapSnapshot*>(reinterpret_cast<const i::HeapSnapshot*>(
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snapshot))->GetSortedEntriesList();
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const v8::HeapGraphNode* root2 = snapshot->GetRoot();
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CHECK_EQ(root1, root2);
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}
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TEST(HeapEntryDominator) {
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// The graph looks like this:
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//
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// -> node1
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// a |^
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// -> node5 ba
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// a v|
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// node6 -> node2
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// b a |^
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// -> node4 ba
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// b v|
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// -> node3
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//
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// The dominator for all nodes is node6.
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v8::HandleScope scope;
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LocalContext env;
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CompileRun(
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"function X(a, b) { this.a = a; this.b = b; }\n"
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"node6 = new X(new X(new X()), new X(new X(),new X()));\n"
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"(function(){\n"
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"node6.a.a.b = node6.b.a; // node1 -> node2\n"
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"node6.b.a.a = node6.a.a; // node2 -> node1\n"
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"node6.b.a.b = node6.b.b; // node2 -> node3\n"
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"node6.b.b.a = node6.b.a; // node3 -> node2\n"
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"})();");
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const v8::HeapSnapshot* snapshot =
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v8::HeapProfiler::TakeSnapshot(v8_str("dominators"));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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CHECK_NE(NULL, global);
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const v8::HeapGraphNode* node6 =
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GetProperty(global, v8::HeapGraphEdge::kShortcut, "node6");
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CHECK_NE(NULL, node6);
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const v8::HeapGraphNode* node5 =
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GetProperty(node6, v8::HeapGraphEdge::kProperty, "a");
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CHECK_NE(NULL, node5);
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const v8::HeapGraphNode* node4 =
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GetProperty(node6, v8::HeapGraphEdge::kProperty, "b");
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CHECK_NE(NULL, node4);
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const v8::HeapGraphNode* node3 =
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GetProperty(node4, v8::HeapGraphEdge::kProperty, "b");
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CHECK_NE(NULL, node3);
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const v8::HeapGraphNode* node2 =
|
|
GetProperty(node4, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK_NE(NULL, node2);
|
|
const v8::HeapGraphNode* node1 =
|
|
GetProperty(node5, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK_NE(NULL, node1);
|
|
|
|
CHECK_EQ(node6, node1->GetDominatorNode());
|
|
CHECK_EQ(node6, node2->GetDominatorNode());
|
|
CHECK_EQ(node6, node3->GetDominatorNode());
|
|
CHECK_EQ(node6, node4->GetDominatorNode());
|
|
CHECK_EQ(node6, node5->GetDominatorNode());
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestJSONStream : public v8::OutputStream {
|
|
public:
|
|
TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {}
|
|
explicit TestJSONStream(int abort_countdown)
|
|
: eos_signaled_(0), abort_countdown_(abort_countdown) {}
|
|
virtual ~TestJSONStream() {}
|
|
virtual void EndOfStream() { ++eos_signaled_; }
|
|
virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
|
|
if (abort_countdown_ > 0) --abort_countdown_;
|
|
if (abort_countdown_ == 0) return kAbort;
|
|
CHECK_GT(chars_written, 0);
|
|
i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0');
|
|
memcpy(chunk.start(), buffer, chars_written);
|
|
return kContinue;
|
|
}
|
|
void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); }
|
|
int eos_signaled() { return eos_signaled_; }
|
|
int size() { return buffer_.size(); }
|
|
private:
|
|
i::Collector<char> buffer_;
|
|
int eos_signaled_;
|
|
int abort_countdown_;
|
|
};
|
|
|
|
class AsciiResource: public v8::String::ExternalAsciiStringResource {
|
|
public:
|
|
explicit AsciiResource(i::Vector<char> string): data_(string.start()) {
|
|
length_ = string.length();
|
|
}
|
|
virtual const char* data() const { return data_; }
|
|
virtual size_t length() const { return length_; }
|
|
private:
|
|
const char* data_;
|
|
size_t length_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
TEST(HeapSnapshotJSONSerialization) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
#define STRING_LITERAL_FOR_TEST \
|
|
"\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\""
|
|
CompileRun(
|
|
"function A(s) { this.s = s; }\n"
|
|
"function B(x) { this.x = x; }\n"
|
|
"var a = new A(" STRING_LITERAL_FOR_TEST ");\n"
|
|
"var b = new B(a);");
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("json"));
|
|
TestJSONStream stream;
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(1, stream.eos_signaled());
|
|
i::ScopedVector<char> json(stream.size());
|
|
stream.WriteTo(json);
|
|
|
|
// Verify that snapshot string is valid JSON.
|
|
AsciiResource json_res(json);
|
|
v8::Local<v8::String> json_string = v8::String::NewExternal(&json_res);
|
|
env->Global()->Set(v8_str("json_snapshot"), json_string);
|
|
v8::Local<v8::Value> snapshot_parse_result = CompileRun(
|
|
"var parsed = JSON.parse(json_snapshot); true;");
|
|
CHECK(!snapshot_parse_result.IsEmpty());
|
|
|
|
// Verify that snapshot object has required fields.
|
|
v8::Local<v8::Object> parsed_snapshot =
|
|
env->Global()->Get(v8_str("parsed"))->ToObject();
|
|
CHECK(parsed_snapshot->Has(v8_str("snapshot")));
|
|
CHECK(parsed_snapshot->Has(v8_str("nodes")));
|
|
CHECK(parsed_snapshot->Has(v8_str("strings")));
|
|
|
|
// Get node and edge "member" offsets.
|
|
v8::Local<v8::Value> meta_analysis_result = CompileRun(
|
|
"var parsed_meta = parsed.nodes[0];\n"
|
|
"var children_count_offset ="
|
|
" parsed_meta.fields.indexOf('children_count');\n"
|
|
"var children_offset ="
|
|
" parsed_meta.fields.indexOf('children');\n"
|
|
"var children_meta ="
|
|
" parsed_meta.types[children_offset];\n"
|
|
"var child_fields_count = children_meta.fields.length;\n"
|
|
"var child_type_offset ="
|
|
" children_meta.fields.indexOf('type');\n"
|
|
"var child_name_offset ="
|
|
" children_meta.fields.indexOf('name_or_index');\n"
|
|
"var child_to_node_offset ="
|
|
" children_meta.fields.indexOf('to_node');\n"
|
|
"var property_type ="
|
|
" children_meta.types[child_type_offset].indexOf('property');\n"
|
|
"var shortcut_type ="
|
|
" children_meta.types[child_type_offset].indexOf('shortcut');");
|
|
CHECK(!meta_analysis_result.IsEmpty());
|
|
|
|
// A helper function for processing encoded nodes.
|
|
CompileRun(
|
|
"function GetChildPosByProperty(pos, prop_name, prop_type) {\n"
|
|
" var nodes = parsed.nodes;\n"
|
|
" var strings = parsed.strings;\n"
|
|
" for (var i = 0,\n"
|
|
" count = nodes[pos + children_count_offset] * child_fields_count;\n"
|
|
" i < count; i += child_fields_count) {\n"
|
|
" var child_pos = pos + children_offset + i;\n"
|
|
" if (nodes[child_pos + child_type_offset] === prop_type\n"
|
|
" && strings[nodes[child_pos + child_name_offset]] === prop_name)\n"
|
|
" return nodes[child_pos + child_to_node_offset];\n"
|
|
" }\n"
|
|
" return null;\n"
|
|
"}\n");
|
|
// Get the string index using the path: <root> -> <global>.b.x.s
|
|
v8::Local<v8::Value> string_obj_pos_val = CompileRun(
|
|
"GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty("
|
|
" parsed.nodes[1 + children_offset + child_to_node_offset],"
|
|
" \"b\",shortcut_type),\n"
|
|
" \"x\", property_type),"
|
|
" \"s\", property_type)");
|
|
CHECK(!string_obj_pos_val.IsEmpty());
|
|
int string_obj_pos =
|
|
static_cast<int>(string_obj_pos_val->ToNumber()->Value());
|
|
v8::Local<v8::Object> nodes_array =
|
|
parsed_snapshot->Get(v8_str("nodes"))->ToObject();
|
|
int string_index = static_cast<int>(
|
|
nodes_array->Get(string_obj_pos + 1)->ToNumber()->Value());
|
|
CHECK_GT(string_index, 0);
|
|
v8::Local<v8::Object> strings_array =
|
|
parsed_snapshot->Get(v8_str("strings"))->ToObject();
|
|
v8::Local<v8::String> string = strings_array->Get(string_index)->ToString();
|
|
v8::Local<v8::String> ref_string =
|
|
CompileRun(STRING_LITERAL_FOR_TEST)->ToString();
|
|
#undef STRING_LITERAL_FOR_TEST
|
|
CHECK_EQ(*v8::String::Utf8Value(ref_string),
|
|
*v8::String::Utf8Value(string));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotJSONSerializationAborting) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("abort"));
|
|
TestJSONStream stream(5);
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(0, stream.eos_signaled());
|
|
}
|
|
|
|
|
|
static void CheckChildrenIds(const v8::HeapSnapshot* snapshot,
|
|
const v8::HeapGraphNode* node,
|
|
int level, int max_level) {
|
|
if (level > max_level) return;
|
|
CHECK_EQ(node, snapshot->GetNodeById(node->GetId()));
|
|
for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = node->GetChild(i);
|
|
const v8::HeapGraphNode* child =
|
|
snapshot->GetNodeById(prop->GetToNode()->GetId());
|
|
CHECK_EQ_UINT64_T(prop->GetToNode()->GetId(), child->GetId());
|
|
CHECK_EQ(prop->GetToNode(), child);
|
|
CheckChildrenIds(snapshot, child, level + 1, max_level);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotGetNodeById) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("id"));
|
|
const v8::HeapGraphNode* root = snapshot->GetRoot();
|
|
CheckChildrenIds(snapshot, root, 0, 3);
|
|
// Check a big id, which should not exist yet.
|
|
CHECK_EQ(NULL, snapshot->GetNodeById(0x1000000UL));
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestActivityControl : public v8::ActivityControl {
|
|
public:
|
|
explicit TestActivityControl(int abort_count)
|
|
: done_(0), total_(0), abort_count_(abort_count) {}
|
|
ControlOption ReportProgressValue(int done, int total) {
|
|
done_ = done;
|
|
total_ = total;
|
|
return --abort_count_ != 0 ? kContinue : kAbort;
|
|
}
|
|
int done() { return done_; }
|
|
int total() { return total_; }
|
|
|
|
private:
|
|
int done_;
|
|
int total_;
|
|
int abort_count_;
|
|
};
|
|
}
|
|
|
|
TEST(TakeHeapSnapshotAborting) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
const int snapshots_count = v8::HeapProfiler::GetSnapshotsCount();
|
|
TestActivityControl aborting_control(3);
|
|
const v8::HeapSnapshot* no_snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("abort"),
|
|
v8::HeapSnapshot::kFull,
|
|
&aborting_control);
|
|
CHECK_EQ(NULL, no_snapshot);
|
|
CHECK_EQ(snapshots_count, v8::HeapProfiler::GetSnapshotsCount());
|
|
CHECK_GT(aborting_control.total(), aborting_control.done());
|
|
|
|
TestActivityControl control(-1); // Don't abort.
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("full"),
|
|
v8::HeapSnapshot::kFull,
|
|
&control);
|
|
CHECK_NE(NULL, snapshot);
|
|
CHECK_EQ(snapshots_count + 1, v8::HeapProfiler::GetSnapshotsCount());
|
|
CHECK_EQ(control.total(), control.done());
|
|
CHECK_GT(control.total(), 0);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestRetainedObjectInfo : public v8::RetainedObjectInfo {
|
|
public:
|
|
TestRetainedObjectInfo(int hash,
|
|
const char* group_label,
|
|
const char* label,
|
|
intptr_t element_count = -1,
|
|
intptr_t size = -1)
|
|
: disposed_(false),
|
|
hash_(hash),
|
|
group_label_(group_label),
|
|
label_(label),
|
|
element_count_(element_count),
|
|
size_(size) {
|
|
instances.Add(this);
|
|
}
|
|
virtual ~TestRetainedObjectInfo() {}
|
|
virtual void Dispose() {
|
|
CHECK(!disposed_);
|
|
disposed_ = true;
|
|
}
|
|
virtual bool IsEquivalent(RetainedObjectInfo* other) {
|
|
return GetHash() == other->GetHash();
|
|
}
|
|
virtual intptr_t GetHash() { return hash_; }
|
|
virtual const char* GetGroupLabel() { return group_label_; }
|
|
virtual const char* GetLabel() { return label_; }
|
|
virtual intptr_t GetElementCount() { return element_count_; }
|
|
virtual intptr_t GetSizeInBytes() { return size_; }
|
|
bool disposed() { return disposed_; }
|
|
|
|
static v8::RetainedObjectInfo* WrapperInfoCallback(
|
|
uint16_t class_id, v8::Handle<v8::Value> wrapper) {
|
|
if (class_id == 1) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::AsciiValue ascii(wrapper);
|
|
if (strcmp(*ascii, "AAA") == 0)
|
|
return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
|
|
else if (strcmp(*ascii, "BBB") == 0)
|
|
return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
|
|
}
|
|
} else if (class_id == 2) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::AsciiValue ascii(wrapper);
|
|
if (strcmp(*ascii, "CCC") == 0)
|
|
return new TestRetainedObjectInfo(2, "ccc-group", "ccc");
|
|
}
|
|
}
|
|
CHECK(false);
|
|
return NULL;
|
|
}
|
|
|
|
static i::List<TestRetainedObjectInfo*> instances;
|
|
|
|
private:
|
|
bool disposed_;
|
|
int category_;
|
|
int hash_;
|
|
const char* group_label_;
|
|
const char* label_;
|
|
intptr_t element_count_;
|
|
intptr_t size_;
|
|
};
|
|
|
|
|
|
i::List<TestRetainedObjectInfo*> TestRetainedObjectInfo::instances;
|
|
}
|
|
|
|
|
|
static const v8::HeapGraphNode* GetNode(const v8::HeapGraphNode* parent,
|
|
v8::HeapGraphNode::Type type,
|
|
const char* name) {
|
|
for (int i = 0, count = parent->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphNode* node = parent->GetChild(i)->GetToNode();
|
|
if (node->GetType() == type && strcmp(name,
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(node))->name()) == 0) {
|
|
return node;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotRetainedObjectInfo) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler::DefineWrapperClass(
|
|
1, TestRetainedObjectInfo::WrapperInfoCallback);
|
|
v8::HeapProfiler::DefineWrapperClass(
|
|
2, TestRetainedObjectInfo::WrapperInfoCallback);
|
|
v8::Persistent<v8::String> p_AAA =
|
|
v8::Persistent<v8::String>::New(v8_str("AAA"));
|
|
p_AAA.SetWrapperClassId(1);
|
|
v8::Persistent<v8::String> p_BBB =
|
|
v8::Persistent<v8::String>::New(v8_str("BBB"));
|
|
p_BBB.SetWrapperClassId(1);
|
|
v8::Persistent<v8::String> p_CCC =
|
|
v8::Persistent<v8::String>::New(v8_str("CCC"));
|
|
p_CCC.SetWrapperClassId(2);
|
|
CHECK_EQ(0, TestRetainedObjectInfo::instances.length());
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("retained"));
|
|
|
|
CHECK_EQ(3, TestRetainedObjectInfo::instances.length());
|
|
for (int i = 0; i < TestRetainedObjectInfo::instances.length(); ++i) {
|
|
CHECK(TestRetainedObjectInfo::instances[i]->disposed());
|
|
delete TestRetainedObjectInfo::instances[i];
|
|
}
|
|
|
|
const v8::HeapGraphNode* native_group_aaa = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kNative, "aaa-group");
|
|
CHECK_NE(NULL, native_group_aaa);
|
|
CHECK_EQ(1, native_group_aaa->GetChildrenCount());
|
|
const v8::HeapGraphNode* aaa = GetNode(
|
|
native_group_aaa, v8::HeapGraphNode::kNative, "aaa / 100 entries");
|
|
CHECK_NE(NULL, aaa);
|
|
CHECK_EQ(2, aaa->GetChildrenCount());
|
|
|
|
const v8::HeapGraphNode* native_group_ccc = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kNative, "ccc-group");
|
|
const v8::HeapGraphNode* ccc = GetNode(
|
|
native_group_ccc, v8::HeapGraphNode::kNative, "ccc");
|
|
CHECK_NE(NULL, ccc);
|
|
|
|
const v8::HeapGraphNode* n_AAA = GetNode(
|
|
aaa, v8::HeapGraphNode::kString, "AAA");
|
|
CHECK_NE(NULL, n_AAA);
|
|
const v8::HeapGraphNode* n_BBB = GetNode(
|
|
aaa, v8::HeapGraphNode::kString, "BBB");
|
|
CHECK_NE(NULL, n_BBB);
|
|
CHECK_EQ(1, ccc->GetChildrenCount());
|
|
const v8::HeapGraphNode* n_CCC = GetNode(
|
|
ccc, v8::HeapGraphNode::kString, "CCC");
|
|
CHECK_NE(NULL, n_CCC);
|
|
|
|
CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "native"));
|
|
CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "native"));
|
|
CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "native"));
|
|
}
|
|
|
|
|
|
TEST(DeleteAllHeapSnapshots) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount());
|
|
v8::HeapProfiler::DeleteAllSnapshots();
|
|
CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount());
|
|
CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("1")));
|
|
CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount());
|
|
v8::HeapProfiler::DeleteAllSnapshots();
|
|
CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount());
|
|
CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("1")));
|
|
CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("2")));
|
|
CHECK_EQ(2, v8::HeapProfiler::GetSnapshotsCount());
|
|
v8::HeapProfiler::DeleteAllSnapshots();
|
|
CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount());
|
|
}
|
|
|
|
|
|
TEST(DeleteHeapSnapshot) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount());
|
|
const v8::HeapSnapshot* s1 =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("1"));
|
|
CHECK_NE(NULL, s1);
|
|
CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount());
|
|
unsigned uid1 = s1->GetUid();
|
|
CHECK_EQ(s1, v8::HeapProfiler::FindSnapshot(uid1));
|
|
const_cast<v8::HeapSnapshot*>(s1)->Delete();
|
|
CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount());
|
|
CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid1));
|
|
|
|
const v8::HeapSnapshot* s2 =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("2"));
|
|
CHECK_NE(NULL, s2);
|
|
CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount());
|
|
unsigned uid2 = s2->GetUid();
|
|
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
|
|
CHECK_EQ(s2, v8::HeapProfiler::FindSnapshot(uid2));
|
|
const v8::HeapSnapshot* s3 =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("3"));
|
|
CHECK_NE(NULL, s3);
|
|
CHECK_EQ(2, v8::HeapProfiler::GetSnapshotsCount());
|
|
unsigned uid3 = s3->GetUid();
|
|
CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
|
|
CHECK_EQ(s3, v8::HeapProfiler::FindSnapshot(uid3));
|
|
const_cast<v8::HeapSnapshot*>(s2)->Delete();
|
|
CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount());
|
|
CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid2));
|
|
CHECK_EQ(s3, v8::HeapProfiler::FindSnapshot(uid3));
|
|
const_cast<v8::HeapSnapshot*>(s3)->Delete();
|
|
CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount());
|
|
CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid3));
|
|
}
|
|
|
|
|
|
TEST(DocumentURL) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("document"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
CHECK_EQ("Object / abcdefgh",
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(global))->name());
|
|
}
|
|
|
|
|
|
TEST(DocumentWithException) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun(
|
|
"this.__defineGetter__(\"document\", function() { throw new Error(); })");
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("document"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
CHECK_EQ("Object",
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(global))->name());
|
|
}
|
|
|
|
|
|
TEST(DocumentURLWithException) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun(
|
|
"function URLWithException() {}\n"
|
|
"URLWithException.prototype = { get URL() { throw new Error(); } };\n"
|
|
"document = { URL: new URLWithException() };");
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("document"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
CHECK_EQ("Object",
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(global))->name());
|
|
}
|
|
|
|
|
|
TEST(NoHandleLeaks) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
v8::Handle<v8::String> name(v8_str("leakz"));
|
|
int count_before = i::HandleScope::NumberOfHandles();
|
|
v8::HeapProfiler::TakeSnapshot(name);
|
|
int count_after = i::HandleScope::NumberOfHandles();
|
|
CHECK_EQ(count_before, count_after);
|
|
}
|
|
|
|
|
|
TEST(NodesIteration) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("iteration"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
// Verify that we can find this object by iteration.
|
|
const int nodes_count = snapshot->GetNodesCount();
|
|
int count = 0;
|
|
for (int i = 0; i < nodes_count; ++i) {
|
|
if (snapshot->GetNode(i) == global)
|
|
++count;
|
|
}
|
|
CHECK_EQ(1, count);
|
|
}
|
|
|
|
|
|
TEST(GetHeapValue) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun("a = { s_prop: \'value\', n_prop: 0.1 };");
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("value"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global->GetHeapValue()->IsObject());
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
CHECK(js_global == global->GetHeapValue());
|
|
const v8::HeapGraphNode* obj = GetProperty(
|
|
global, v8::HeapGraphEdge::kShortcut, "a");
|
|
CHECK(obj->GetHeapValue()->IsObject());
|
|
v8::Local<v8::Object> js_obj = js_global->Get(v8_str("a")).As<v8::Object>();
|
|
CHECK(js_obj == obj->GetHeapValue());
|
|
const v8::HeapGraphNode* s_prop =
|
|
GetProperty(obj, v8::HeapGraphEdge::kProperty, "s_prop");
|
|
v8::Local<v8::String> js_s_prop =
|
|
js_obj->Get(v8_str("s_prop")).As<v8::String>();
|
|
CHECK(js_s_prop == s_prop->GetHeapValue());
|
|
const v8::HeapGraphNode* n_prop =
|
|
GetProperty(obj, v8::HeapGraphEdge::kProperty, "n_prop");
|
|
v8::Local<v8::Number> js_n_prop =
|
|
js_obj->Get(v8_str("n_prop")).As<v8::Number>();
|
|
CHECK(js_n_prop == n_prop->GetHeapValue());
|
|
}
|
|
|
|
|
|
TEST(GetHeapValueForDeletedObject) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
// It is impossible to delete a global property, so we are about to delete a
|
|
// property of the "a" object. Also, the "p" object can't be an empty one
|
|
// because the empty object is static and isn't actually deleted.
|
|
CompileRun("a = { p: { r: {} } };");
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("snapshot"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj = GetProperty(
|
|
global, v8::HeapGraphEdge::kShortcut, "a");
|
|
const v8::HeapGraphNode* prop = GetProperty(
|
|
obj, v8::HeapGraphEdge::kProperty, "p");
|
|
{
|
|
// Perform the check inside a nested local scope to avoid creating a
|
|
// reference to the object we are deleting.
|
|
v8::HandleScope scope;
|
|
CHECK(prop->GetHeapValue()->IsObject());
|
|
}
|
|
CompileRun("delete a.p;");
|
|
CHECK(prop->GetHeapValue()->IsUndefined());
|
|
}
|
|
|
|
|
|
static int StringCmp(const char* ref, i::String* act) {
|
|
i::SmartArrayPointer<char> s_act = act->ToCString();
|
|
int result = strcmp(ref, *s_act);
|
|
if (result != 0)
|
|
fprintf(stderr, "Expected: \"%s\", Actual: \"%s\"\n", ref, *s_act);
|
|
return result;
|
|
}
|
|
|
|
|
|
TEST(GetConstructorName) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun(
|
|
"function Constructor1() {};\n"
|
|
"var obj1 = new Constructor1();\n"
|
|
"var Constructor2 = function() {};\n"
|
|
"var obj2 = new Constructor2();\n"
|
|
"var obj3 = {};\n"
|
|
"obj3.constructor = function Constructor3() {};\n"
|
|
"var obj4 = {};\n"
|
|
"// Slow properties\n"
|
|
"for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n"
|
|
"obj4.constructor = function Constructor4() {};\n"
|
|
"var obj5 = {};\n"
|
|
"var obj6 = {};\n"
|
|
"obj6.constructor = 6;");
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
v8::Local<v8::Object> obj1 = js_global->Get(v8_str("obj1")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj1 = v8::Utils::OpenHandle(*obj1);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor1", i::V8HeapExplorer::GetConstructorName(*js_obj1)));
|
|
v8::Local<v8::Object> obj2 = js_global->Get(v8_str("obj2")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj2 = v8::Utils::OpenHandle(*obj2);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor2", i::V8HeapExplorer::GetConstructorName(*js_obj2)));
|
|
v8::Local<v8::Object> obj3 = js_global->Get(v8_str("obj3")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj3 = v8::Utils::OpenHandle(*obj3);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor3", i::V8HeapExplorer::GetConstructorName(*js_obj3)));
|
|
v8::Local<v8::Object> obj4 = js_global->Get(v8_str("obj4")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj4 = v8::Utils::OpenHandle(*obj4);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor4", i::V8HeapExplorer::GetConstructorName(*js_obj4)));
|
|
v8::Local<v8::Object> obj5 = js_global->Get(v8_str("obj5")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj5 = v8::Utils::OpenHandle(*obj5);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj5)));
|
|
v8::Local<v8::Object> obj6 = js_global->Get(v8_str("obj6")).As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj6 = v8::Utils::OpenHandle(*obj6);
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj6)));
|
|
}
|
|
|
|
|
|
TEST(FastCaseGetter) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun("var obj1 = {};\n"
|
|
"obj1.__defineGetter__('propWithGetter', function Y() {\n"
|
|
" return 42;\n"
|
|
"});\n"
|
|
"obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
|
|
" return this.value_ = value;\n"
|
|
"});\n");
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("fastCaseGetter"));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
const v8::HeapGraphNode* obj1 =
|
|
GetProperty(global, v8::HeapGraphEdge::kShortcut, "obj1");
|
|
CHECK_NE(NULL, obj1);
|
|
const v8::HeapGraphNode* getterFunction =
|
|
GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get-propWithGetter");
|
|
CHECK_NE(NULL, getterFunction);
|
|
const v8::HeapGraphNode* setterFunction =
|
|
GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set-propWithSetter");
|
|
CHECK_NE(NULL, setterFunction);
|
|
}
|
|
|
|
|
|
bool HasWeakEdge(const v8::HeapGraphNode* node) {
|
|
for (int i = 0; i < node->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* handle_edge = node->GetChild(i);
|
|
if (handle_edge->GetType() == v8::HeapGraphEdge::kWeak) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool HasWeakGlobalHandle() {
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("weaks"));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)");
|
|
CHECK_NE(NULL, gc_roots);
|
|
const v8::HeapGraphNode* global_handles = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kObject, "(Global handles)");
|
|
CHECK_NE(NULL, global_handles);
|
|
return HasWeakEdge(global_handles);
|
|
}
|
|
|
|
|
|
static void PersistentHandleCallback(v8::Persistent<v8::Value> handle, void*) {
|
|
handle.Dispose();
|
|
}
|
|
|
|
|
|
TEST(WeakGlobalHandle) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CHECK(!HasWeakGlobalHandle());
|
|
|
|
v8::Persistent<v8::Object> handle =
|
|
v8::Persistent<v8::Object>::New(v8::Object::New());
|
|
handle.MakeWeak(NULL, PersistentHandleCallback);
|
|
|
|
CHECK(HasWeakGlobalHandle());
|
|
}
|
|
|
|
|
|
TEST(WeakGlobalContextRefs) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("weaks"));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(GC roots)");
|
|
CHECK_NE(NULL, gc_roots);
|
|
const v8::HeapGraphNode* global_handles = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kObject, "(Global handles)");
|
|
CHECK_NE(NULL, global_handles);
|
|
const v8::HeapGraphNode* global_context = GetNode(
|
|
global_handles, v8::HeapGraphNode::kHidden, "system / GlobalContext");
|
|
CHECK_NE(NULL, global_context);
|
|
CHECK(HasWeakEdge(global_context));
|
|
}
|
|
|
|
|
|
TEST(SfiAndJsFunctionWeakRefs) {
|
|
v8::HandleScope scope;
|
|
LocalContext env;
|
|
|
|
CompileRun(
|
|
"fun = (function (x) { return function () { return x + 1; } })(1);");
|
|
const v8::HeapSnapshot* snapshot =
|
|
v8::HeapProfiler::TakeSnapshot(v8_str("fun"));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_NE(NULL, global);
|
|
const v8::HeapGraphNode* fun =
|
|
GetProperty(global, v8::HeapGraphEdge::kShortcut, "fun");
|
|
CHECK(HasWeakEdge(fun));
|
|
const v8::HeapGraphNode* shared =
|
|
GetProperty(fun, v8::HeapGraphEdge::kInternal, "shared");
|
|
CHECK(HasWeakEdge(shared));
|
|
}
|