1 // Copyright 2010 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
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9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
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13 // contributors may be used to endorse or promote products derived
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15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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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,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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/parsing/parser.h"
40 #include "src/unicode-inl.h"
41 #include "src/utils.h"
42 #include "test/cctest/cctest.h"
43
44 using ::v8::Context;
45 using ::v8::Extension;
46 using ::v8::Function;
47 using ::v8::FunctionTemplate;
48 using ::v8::HandleScope;
49 using ::v8::Local;
50 using ::v8::Message;
51 using ::v8::MessageCallback;
52 using ::v8::Object;
53 using ::v8::ObjectTemplate;
54 using ::v8::Persistent;
55 using ::v8::Script;
56 using ::v8::StackTrace;
57 using ::v8::String;
58 using ::v8::TryCatch;
59 using ::v8::Undefined;
60 using ::v8::V8;
61 using ::v8::Value;
62
ExpectInt32(Local<Context> context,int32_t expected,Local<Value> result)63 static void ExpectInt32(Local<Context> context, int32_t expected,
64 Local<Value> result) {
65 CHECK(result->IsInt32());
66 CHECK_EQ(expected, result->Int32Value(context).FromJust());
67 }
68
69
70 // Global variables.
TEST(global_variables)71 TEST(global_variables) {
72 LocalContext env;
73 v8::HandleScope scope(env->GetIsolate());
74 Local<Value> result = CompileRun(
75 "var x = 0;"
76 "function f0() { return x; }"
77 "f0();");
78 ExpectInt32(env.local(), 0, result);
79 }
80
81
82 // Parameters.
TEST(parameters)83 TEST(parameters) {
84 LocalContext env;
85 v8::HandleScope scope(env->GetIsolate());
86 Local<Value> result = CompileRun(
87 "function f1(x) { return x; }"
88 "f1(1);");
89 ExpectInt32(env.local(), 1, result);
90 }
91
92
93 // Stack-allocated locals.
TEST(stack_allocated_locals)94 TEST(stack_allocated_locals) {
95 LocalContext env;
96 v8::HandleScope scope(env->GetIsolate());
97 Local<Value> result = CompileRun(
98 "function f2() { var x = 2; return x; }"
99 "f2();");
100 ExpectInt32(env.local(), 2, result);
101 }
102
103
104 // Context-allocated locals. Local function forces x into f3's context.
TEST(context_allocated_locals)105 TEST(context_allocated_locals) {
106 LocalContext env;
107 v8::HandleScope scope(env->GetIsolate());
108 Local<Value> result = CompileRun(
109 "function f3(x) {"
110 " function g() { return x; }"
111 " return x;"
112 "}"
113 "f3(3);");
114 ExpectInt32(env.local(), 3, result);
115 }
116
117
118 // Local function reads x from an outer context.
TEST(read_from_outer_context)119 TEST(read_from_outer_context) {
120 LocalContext env;
121 v8::HandleScope scope(env->GetIsolate());
122 Local<Value> result = CompileRun(
123 "function f4(x) {"
124 " function g() { return x; }"
125 " return g();"
126 "}"
127 "f4(4);");
128 ExpectInt32(env.local(), 4, result);
129 }
130
131
132 // Local function reads x from an outer context.
TEST(lookup_slots)133 TEST(lookup_slots) {
134 LocalContext env;
135 v8::HandleScope scope(env->GetIsolate());
136 Local<Value> result = CompileRun(
137 "function f5(x) {"
138 " with ({}) return x;"
139 "}"
140 "f5(5);");
141 ExpectInt32(env.local(), 5, result);
142 }
143