Add a reference table implementation.

This is suitable for pinned array references and the like.

I've also brought in some of the human-readable type printing stuff
for the benefit of the reference table dumping code.

This patch includes tests, but doesn't yet wire anything up.

Change-Id: Iaf6066201bbd254e033dee4fd0b8dfd0bc17afa9

1 files changed, 70 insertions, 0 deletions

diff --git a/src/utils_test.cc b/src/utils_test.cc
new file mode 100644
index 0000000000..1b7315f395
--- /dev/null
+++ b/src/utils_test.cc
@@ -0,0 +1,70 @@
+// Copyright 2011 Google Inc. All Rights Reserved.
+
+#include "object.h"
+#include "common_test.h"
+#include "utils.h"
+
+#include "gtest/gtest.h"
+
+namespace art {
+
+class UtilsTest : public RuntimeTest {
+};
+
+TEST(PrettyDescriptorTest, ArrayReferences) {
+  EXPECT_EQ("java.lang.Class[]", PrettyDescriptor("[Ljava/lang/Class;"));
+  EXPECT_EQ("java.lang.Class[][]", PrettyDescriptor("[[Ljava/lang/Class;"));
+}
+
+TEST(PrettyDescriptorTest, ScalarReferences) {
+  EXPECT_EQ("java.lang.String", PrettyDescriptor("Ljava.lang.String;"));
+  EXPECT_EQ("java.lang.String", PrettyDescriptor("Ljava/lang/String;"));
+}
+
+TEST(PrettyDescriptorTest, PrimitiveArrays) {
+  EXPECT_EQ("boolean[]", PrettyDescriptor("[Z"));
+  EXPECT_EQ("boolean[][]", PrettyDescriptor("[[Z"));
+  EXPECT_EQ("byte[]", PrettyDescriptor("[B"));
+  EXPECT_EQ("byte[][]", PrettyDescriptor("[[B"));
+  EXPECT_EQ("char[]", PrettyDescriptor("[C"));
+  EXPECT_EQ("char[][]", PrettyDescriptor("[[C"));
+  EXPECT_EQ("double[]", PrettyDescriptor("[D"));
+  EXPECT_EQ("double[][]", PrettyDescriptor("[[D"));
+  EXPECT_EQ("float[]", PrettyDescriptor("[F"));
+  EXPECT_EQ("float[][]", PrettyDescriptor("[[F"));
+  EXPECT_EQ("int[]", PrettyDescriptor("[I"));
+  EXPECT_EQ("int[][]", PrettyDescriptor("[[I"));
+  EXPECT_EQ("long[]", PrettyDescriptor("[J"));
+  EXPECT_EQ("long[][]", PrettyDescriptor("[[J"));
+  EXPECT_EQ("short[]", PrettyDescriptor("[S"));
+  EXPECT_EQ("short[][]", PrettyDescriptor("[[S"));
+}
+
+TEST(PrettyDescriptorTest, PrimitiveScalars) {
+  EXPECT_EQ("boolean", PrettyDescriptor("Z"));
+  EXPECT_EQ("byte", PrettyDescriptor("B"));
+  EXPECT_EQ("char", PrettyDescriptor("C"));
+  EXPECT_EQ("double", PrettyDescriptor("D"));
+  EXPECT_EQ("float", PrettyDescriptor("F"));
+  EXPECT_EQ("int", PrettyDescriptor("I"));
+  EXPECT_EQ("long", PrettyDescriptor("J"));
+  EXPECT_EQ("short", PrettyDescriptor("S"));
+}
+
+TEST_F(UtilsTest, PrettyType) {
+  EXPECT_EQ("null", PrettyType(NULL));
+
+  String* s = String::AllocFromModifiedUtf8(0, "");
+  EXPECT_EQ("java.lang.String", PrettyType(s));
+
+  ShortArray* a = ShortArray::Alloc(2);
+  EXPECT_EQ("short[]", PrettyType(a));
+
+  Class* c = class_linker_->FindSystemClass("[Ljava/lang/String;");
+  ASSERT_TRUE(c != NULL);
+  Object* o = ObjectArray<String>::Alloc(c, 0);
+  EXPECT_EQ("java.lang.String[]", PrettyType(o));
+  EXPECT_EQ("java.lang.Class<java.lang.String[]>", PrettyType(o->GetClass()));
+}
+
+}  // namespace art