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127 lines
22 KiB
127 lines
22 KiB
/*---
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{
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"custom": true
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}
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---*/
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/*===
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object
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object
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Error
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object
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object
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Error
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object
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object
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Error
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===*/
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/* JSON parse() recursion limit is hit if C recursion through object
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* and/or array traversal becomes too deep.
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*
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* Note: we don't check the parse result now; using JSON.stringify()
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* to print the result would hit stringify()'s recursion limit. So
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* if printing is added, do it with Ecmascript and avoid Ecmascript
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* recursion limit.
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*/
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function objectRecursionTest(n) {
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var txt = '"foo"';
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var i;
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for (i = 0; i < n; i++) {
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txt = "{\"foo\":" + txt + "}";
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}
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print(typeof JSON.parse(txt));
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}
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function arrayRecursionTest(n) {
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var txt = '"bar"';
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var i;
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for (i = 0; i < n; i++) {
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txt = "[" + txt + "]";
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}
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print(typeof JSON.parse(txt));
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}
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function objectAndArrayRecursionTest(n) {
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var txt = '"bar"';
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var i;
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for (i = 0; i < n; i++) {
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if (i % 2) {
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txt = "{\"foo\":" + txt + "}";
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} else {
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txt = "[" + txt + "]";
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}
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}
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print(typeof JSON.parse(txt));
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}
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try {
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objectRecursionTest(10);
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objectRecursionTest(80);
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objectRecursionTest(200);
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} catch (e) {
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print(e.name);
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}
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try {
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arrayRecursionTest(10);
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arrayRecursionTest(80);
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arrayRecursionTest(200);
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} catch (e) {
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print(e.name);
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}
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try {
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objectAndArrayRecursionTest(10);
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objectAndArrayRecursionTest(80);
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objectAndArrayRecursionTest(200);
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} catch (e) {
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print(e.name);
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}
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/*===
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[{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}]]
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[{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}],{"foo":1,"bar":[1,2]},[1,{"foo":1}]]
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|
|
===*/
|
|
|
|
/* A very wide structure is not an issue, as long as there is no (C)
|
|
* recursion. This test ensures that the recursion tracking works
|
|
* correctly, i.e. is increased and decreased where appropriate.
|
|
*
|
|
* Here we rely on neither parse() nor stringify() hitting any limits,
|
|
* so we can print the result.
|
|
*/
|
|
|
|
function noRecursionTest(n) {
|
|
var txt = [];
|
|
var i;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
if (i % 2) {
|
|
txt.push("[1, {\"foo\":1}]");
|
|
} else {
|
|
txt.push("{\"foo\":1, \"bar\":[1,2]}");
|
|
}
|
|
}
|
|
|
|
txt = "[" + txt.join(", ") + "]";
|
|
print(JSON.stringify(JSON.parse(txt)));
|
|
}
|
|
|
|
try {
|
|
noRecursionTest(10);
|
|
noRecursionTest(100);
|
|
noRecursionTest(1000);
|
|
} catch (e) {
|
|
print(e.name, e);
|
|
}
|
|
|
|
|
|
|