1 // Copyright 2010 the V8 project authors. All rights reserved.
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3 // modification, are permitted provided that the following conditions are
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5 //
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9 // copyright notice, this list of conditions and the following
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15 //
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21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 // Adapted from test/mjsunit/compiler/variables.js
29
30 #include <limits.h>
31
32 #include "src/v8.h"
33
34 #include "src/api.h"
35 #include "src/base/platform/platform.h"
36 #include "src/compilation-cache.h"
37 #include "src/execution.h"
38 #include "src/isolate.h"
39 #include "src/parser.h"
40 #include "src/snapshot.h"
41 #include "src/unicode-inl.h"
42 #include "src/utils.h"
43 #include "test/cctest/cctest.h"
44
45 using ::v8::Context;
46 using ::v8::Extension;
47 using ::v8::Function;
48 using ::v8::FunctionTemplate;
49 using ::v8::Handle;
50 using ::v8::HandleScope;
51 using ::v8::Local;
52 using ::v8::Message;
53 using ::v8::MessageCallback;
54 using ::v8::Object;
55 using ::v8::ObjectTemplate;
56 using ::v8::Persistent;
57 using ::v8::Script;
58 using ::v8::StackTrace;
59 using ::v8::String;
60 using ::v8::TryCatch;
61 using ::v8::Undefined;
62 using ::v8::V8;
63 using ::v8::Value;
64
ExpectInt32(int32_t expected,Local<Value> result)65 static void ExpectInt32(int32_t expected, Local<Value> result) {
66 CHECK(result->IsInt32());
67 CHECK_EQ(expected, result->Int32Value());
68 }
69
70
71 // Global variables.
TEST(global_variables)72 TEST(global_variables) {
73 LocalContext env;
74 v8::HandleScope scope(env->GetIsolate());
75 Local<Value> result = CompileRun(
76 "var x = 0;"
77 "function f0() { return x; }"
78 "f0();");
79 ExpectInt32(0, result);
80 }
81
82
83 // Parameters.
TEST(parameters)84 TEST(parameters) {
85 LocalContext env;
86 v8::HandleScope scope(env->GetIsolate());
87 Local<Value> result = CompileRun(
88 "function f1(x) { return x; }"
89 "f1(1);");
90 ExpectInt32(1, result);
91 }
92
93
94 // Stack-allocated locals.
TEST(stack_allocated_locals)95 TEST(stack_allocated_locals) {
96 LocalContext env;
97 v8::HandleScope scope(env->GetIsolate());
98 Local<Value> result = CompileRun(
99 "function f2() { var x = 2; return x; }"
100 "f2();");
101 ExpectInt32(2, result);
102 }
103
104
105 // Context-allocated locals. Local function forces x into f3's context.
TEST(context_allocated_locals)106 TEST(context_allocated_locals) {
107 LocalContext env;
108 v8::HandleScope scope(env->GetIsolate());
109 Local<Value> result = CompileRun(
110 "function f3(x) {"
111 " function g() { return x; }"
112 " return x;"
113 "}"
114 "f3(3);");
115 ExpectInt32(3, result);
116 }
117
118
119 // Local function reads x from an outer context.
TEST(read_from_outer_context)120 TEST(read_from_outer_context) {
121 LocalContext env;
122 v8::HandleScope scope(env->GetIsolate());
123 Local<Value> result = CompileRun(
124 "function f4(x) {"
125 " function g() { return x; }"
126 " return g();"
127 "}"
128 "f4(4);");
129 ExpectInt32(4, result);
130 }
131
132
133 // Local function reads x from an outer context.
TEST(lookup_slots)134 TEST(lookup_slots) {
135 LocalContext env;
136 v8::HandleScope scope(env->GetIsolate());
137 Local<Value> result = CompileRun(
138 "function f5(x) {"
139 " with ({}) return x;"
140 "}"
141 "f5(5);");
142 ExpectInt32(5, result);
143 }
144