[Interpreter] Add support for calling eval.

test/cctest/interpreter/test-interpreter.cc

 // Copyright 2015 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/execution.h"
 #include "src/handles.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/interpreter.h"
@@ skipping 48 matching lines @@
   InterpreterTester(Isolate* isolate, const char* source,
                     MaybeHandle<BytecodeArray> bytecode,
                     MaybeHandle<TypeFeedbackVector> feedback_vector,
                     const char* filter)
       : isolate_(isolate),
         source_(source),
         bytecode_(bytecode),
         feedback_vector_(feedback_vector) {
     i::FLAG_ignition = true;
     i::FLAG_ignition_fake_try_catch = true;
+    i::FLAG_ignition_fallback_on_eval_and_catch = false;
     i::FLAG_always_opt = false;
     // Set ignition filter flag via SetFlagsFromString to avoid double-free
     // (or potential leak with StrDup() based on ownership confusion).
     ScopedVector<char> ignition_filter(64);
     SNPrintF(ignition_filter, "--ignition-filter=%s", filter);
     FlagList::SetFlagsFromString(ignition_filter.start(),
                                  ignition_filter.length());
     // Ensure handler table is generated.
     isolate->interpreter()->Initialize();
   }
@@ skipping 3109 matching lines @@
         InterpreterTester::SourceForBody(to_name_tests[i].first));
     InterpreterTester tester(handles.main_isolate(), source.c_str());
     auto callable = tester.GetCallable<>();
 
     Handle<i::Object> return_value = callable().ToHandleChecked();
     CHECK(return_value->SameValue(*to_name_tests[i].second));
   }
 }
 
 
+TEST(TemporaryRegisterAllocation) {
+  HandleAndZoneScope handles;
+  i::Isolate* isolate = handles.main_isolate();
+  i::Factory* factory = isolate->factory();
+
+  std::pair<const char*, Handle<Object>> reg_tests[] = {
+      {"function add(a, b, c) {"
+       "   return a + b + c;"
+       "}"
+       "function f() {"
+       "  var a = 10, b = 10;"
+       "   return add(a, b++, b);"
+       "}",
+       factory->NewNumberFromInt(31)},
+      {"function add(a, b, c, d) {"
+       "  return a + b + c + d;"
+       "}"
+       "function f() {"
+       "  var x = 10, y = 20, z = 30;"
+       "  return x + add(x, (y= x++), x, z);"
+       "}",
+       factory->NewNumberFromInt(71)},
+  };
+
+  for (size_t i = 0; i < arraysize(reg_tests); i++) {
+    InterpreterTester tester(handles.main_isolate(), reg_tests[i].first);
+    auto callable = tester.GetCallable<>();
+
+    Handle<i::Object> return_value = callable().ToHandleChecked();
+    CHECK(return_value->SameValue(*reg_tests[i].second));
+  }
+}
+
+
 TEST(InterpreterLookupSlot) {
   HandleAndZoneScope handles;
   i::Isolate* isolate = handles.main_isolate();
   i::Factory* factory = isolate->factory();
 
   // TODO(mythria): Add more tests when we have support for eval/with.
   const char* function_prologue = "var f;"
                                   "var x = 1;"
                                   "function f1() {"
                                   "  eval(\"function t() {";
@@ skipping 61 matching lines @@
 
     InterpreterTester tester(handles.main_isolate(), script.c_str(), "t");
     auto callable = tester.GetCallable<>();
 
     Handle<i::Object> return_value = callable().ToHandleChecked();
     CHECK(return_value->SameValue(*lookup_slot[i].second));
   }
 }
 
 
-TEST(TemporaryRegisterAllocation) {
-  HandleAndZoneScope handles;
-  i::Isolate* isolate = handles.main_isolate();
-  i::Factory* factory = isolate->factory();
-
-  std::pair<const char*, Handle<Object>> reg_tests[] = {
-      {"function add(a, b, c) {"
-       "   return a + b + c;"
-       "}"
-       "function f() {"
-       "  var a = 10, b = 10;"
-       "   return add(a, b++, b);"
-       "}",
-       factory->NewNumberFromInt(31)},
-      {"function add(a, b, c, d) {"
-       "  return a + b + c + d;"
-       "}"
-       "function f() {"
-       "  var x = 10, y = 20, z = 30;"
-       "  return x + add(x, (y= x++), x, z);"
-       "}",
-       factory->NewNumberFromInt(71)},
-  };
-
-  for (size_t i = 0; i < arraysize(reg_tests); i++) {
-    InterpreterTester tester(handles.main_isolate(), reg_tests[i].first);
-    auto callable = tester.GetCallable<>();
-
-    Handle<i::Object> return_value = callable().ToHandleChecked();
-    CHECK(return_value->SameValue(*reg_tests[i].second));
-  }
-}
-
-
 TEST(InterpreterDeleteLookupSlot) {
   HandleAndZoneScope handles;
   i::Isolate* isolate = handles.main_isolate();
   i::Factory* factory = isolate->factory();
 
   // TODO(mythria): Add more tests when we have support for eval/with.
   const char* function_prologue = "var f;"
                                   "var x = 1;"
                                   "y = 10;"
                                   "var obj = {val:10};"
@@ skipping 57 matching lines @@
       InterpreterTester tester(handles.main_isolate(), script.c_str());
       auto callable = tester.GetCallable<Handle<Object>>();
       Handle<Object> return_val =
           callable(factory->NewNumberFromInt(a)).ToHandleChecked();
       static const int results[] = {11, 12, 2};
       CHECK_EQ(Handle<Smi>::cast(return_val)->value(), results[a]);
     }
   }
 }
 
+
+TEST(InterpreterEval) {
+  HandleAndZoneScope handles;
+  i::Isolate* isolate = handles.main_isolate();
+  i::Factory* factory = isolate->factory();
+
+  std::pair<const char*, Handle<Object>> eval[] = {
+      {"return eval('1;');", handle(Smi::FromInt(1), isolate)},
+      {"return eval('100 * 20;');", handle(Smi::FromInt(2000), isolate)},
+      {"var x = 10; return eval('x + 20;');",
+       handle(Smi::FromInt(30), isolate)},
+      {"var x = 10; eval('x = 33;'); return x;",
+       handle(Smi::FromInt(33), isolate)},
+      {"'use strict'; var x = 20; var z = 0;\n"
+       "eval('var x = 33; z = x;'); return x + z;",
+       handle(Smi::FromInt(53), isolate)},
+      {"eval('var x = 33;'); eval('var y = x + 20'); return x + y;",
+       handle(Smi::FromInt(86), isolate)},
+      {"var x = 1; eval('for(i = 0; i < 10; i++) x = x + 1;'); return x",
+       handle(Smi::FromInt(11), isolate)},
+      {"var x = 10; eval('var x = 20;'); return x;",
+       handle(Smi::FromInt(20), isolate)},
+      {"var x = 1; eval('\"use strict\"; var x = 2;'); return x;",
+       handle(Smi::FromInt(1), isolate)},
+      {"'use strict'; var x = 1; eval('var x = 2;'); return x;",
+       handle(Smi::FromInt(1), isolate)},
+      {"var x = 10; eval('x + 20;'); return typeof x;",
+       factory->NewStringFromStaticChars("number")},
+      {"eval('var y = 10;'); return typeof unallocated;",
+       factory->NewStringFromStaticChars("undefined")},
+      {"'use strict'; eval('var y = 10;'); return typeof unallocated;",
+       factory->NewStringFromStaticChars("undefined")},
+      {"eval('var x = 10;'); return typeof x;",
+       factory->NewStringFromStaticChars("number")},
+      {"var x = {}; eval('var x = 10;'); return typeof x;",
+       factory->NewStringFromStaticChars("number")},
+      {"'use strict'; var x = {}; eval('var x = 10;'); return typeof x;",
+       factory->NewStringFromStaticChars("object")},
+  };
+
+  for (size_t i = 0; i < arraysize(eval); i++) {
+    std::string source(InterpreterTester::SourceForBody(eval[i].first));
+    InterpreterTester tester(handles.main_isolate(), source.c_str());
+    auto callable = tester.GetCallable<>();
+
+    Handle<i::Object> return_value = callable().ToHandleChecked();
+    CHECK(return_value->SameValue(*eval[i].second));
+  }
+}
+
+
+TEST(InterpreterEvalParams) {
+  HandleAndZoneScope handles;
+  i::Isolate* isolate = handles.main_isolate();
+
+  std::pair<const char*, Handle<Object>> eval_params[] = {
+      {"var x = 10; return eval('x + p1;');",
+       handle(Smi::FromInt(30), isolate)},
+      {"var x = 10; eval('p1 = x;'); return p1;",
+       handle(Smi::FromInt(10), isolate)},
+      {"var a = 10;"
+       "function inner() { return eval('a + p1;');}"
+       "return inner();",
+       handle(Smi::FromInt(30), isolate)},
+  };
+
+  for (size_t i = 0; i < arraysize(eval_params); i++) {
+    std::string source = "function " + InterpreterTester::function_name() +
+                         "(p1) {" + eval_params[i].first + "}";
+    InterpreterTester tester(handles.main_isolate(), source.c_str());
+    auto callable = tester.GetCallable<Handle<Object>>();
+
+    Handle<i::Object> return_value =
+        callable(handle(Smi::FromInt(20), isolate)).ToHandleChecked();
+    CHECK(return_value->SameValue(*eval_params[i].second));
+  }
+}
+
+
+TEST(InterpreterEvalGlobal) {
+  HandleAndZoneScope handles;
+  i::Isolate* isolate = handles.main_isolate();
+  i::Factory* factory = isolate->factory();
+
+  std::pair<const char*, Handle<Object>> eval_global[] = {
+      {"function add_global() { eval('function test() { z = 33; }; test()'); };"
+       "function f() { add_global(); return z; }; f();",
+       handle(Smi::FromInt(33), isolate)},
+      {"function add_global() {\n"
+       " eval('\"use strict\"; function test() { y = 33; };"
+       "      try { test() } catch(e) {}');\n"
+       "}\n"
+       "function f() { add_global(); return typeof y; } f();",
+       factory->NewStringFromStaticChars("undefined")},
+  };
+
+  for (size_t i = 0; i < arraysize(eval_global); i++) {
+    InterpreterTester tester(handles.main_isolate(), eval_global[i].first,
+                             "test");
+    auto callable = tester.GetCallable<>();
+
+    Handle<i::Object> return_value = callable().ToHandleChecked();
+    CHECK(return_value->SameValue(*eval_global[i].second));
+  }
+}
+
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8