1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// This code generates the test cases jit-test/tests/baseline/no-such-property-getprop.js
//
// In particular, it generates the testChain_<N>_<I>() and runChain_<N>_<I>() functions
// at the tail of the file.
var TEST_CASE_FUNCS = [];
function runChain_NNNN_DDDD(obj) {
var sum = 0;
for (var i = 0; i < 100; i++)
sum += obj.foo;
return sum;
}
function testChain_NNNN_DDDD() {
var obj = createTower(NNNN);
assertEq(runChain_NNNN_DDDD(obj), NaN);
updateChain(obj, DDDD, 'foo', 9);
assertEq(runChain_NNNN_DDDD(obj), 900);
}
function generateTestCase(n, d) {
var runFuncName = "runChain_" + n + "_" + d;
var testFuncName = "testChain_" + n + "_" + d;
TEST_CASE_FUNCS.push(testFuncName);
print("//// Test chain of length " + n + " with late-property-addition at depth " + d);
print(String(runChain_NNNN_DDDD).replace(/NNNN/g, ''+n).replace(/DDDD/g, ''+d));
print(String(testChain_NNNN_DDDD).replace(/NNNN/g, ''+n).replace(/DDDD/g, ''+d));
print("");
}
// Helper function to create an object with a proto-chain of length N.
function createTower(n) {
var result = Object.create(null);
for (var i = 0; i < n; i++)
result = Object.create(result);
return result;
}
function updateChain(obj, depth, prop, value) {
// Walk down the proto chain |depth| iterations and set |prop| to |value|.
var cur = obj;
for (var i = 0; i < depth; i++)
cur = Object.getPrototypeOf(cur);
var desc = {value:value, writable:true, configurable:true, enumerable:true};
Object.defineProperty(cur, prop, desc);
}
print("/////////////////////////////////////////");
print("// This is a generated file!");
print("// See jit-tests/etc/generate-nosuchproperty-tests.js for the code");
print("// that generated this code!");
print("/////////////////////////////////////////");
print("");
print("/////////////////////////////////////////");
print("// PRELUDE //");
print("/////////////////////////////////////////");
print("");
print(createTower);
print(updateChain);
print("");
print("/////////////////////////////////////////");
print("// TEST CASES //");
print("/////////////////////////////////////////");
print("");
for (var n = 0; n <= 10; n++) {
for (var d = 0; d <= n; d++) {
generateTestCase(n, d);
}
}
print("");
print("/////////////////////////////////////////");
print("// RUNNER //");
print("/////////////////////////////////////////");
print("");
for (var i = 0; i < TEST_CASE_FUNCS.length; i++)
print(TEST_CASE_FUNCS[i] + "();");
|
