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var BUGNUMBER = 887016;
var summary = "Trace RegExp.prototype[@@search] behavior.";
print(BUGNUMBER + ": " + summary);
var n;
var log;
var target;
var execResult;
var lastIndexResult;
var lastIndexExpected;
function P(index) {
return new Proxy({ index }, {
get(that, name) {
log += "get:result[" + name + "],";
return that[name];
}
});
}
var myRegExp = {
get lastIndex() {
log += "get:lastIndex,";
return lastIndexResult[n];
},
set lastIndex(v) {
log += "set:lastIndex,";
assertEq(v, lastIndexExpected[n]);
},
get exec() {
log += "get:exec,";
return function(S) {
log += "call:exec,";
assertEq(S, target);
return execResult[n++];
};
},
};
function reset() {
n = 0;
log = "";
target = "abcAbcABC";
}
// Trace hit.
reset();
execResult = [ P(16) ];
lastIndexResult = [ 10, , ];
lastIndexExpected = [ 0, 10 ];
var ret = RegExp.prototype[Symbol.search].call(myRegExp, target);
assertEq(ret, 16);
assertEq(log,
"get:lastIndex," +
"set:lastIndex," +
"get:exec,call:exec," +
"set:lastIndex," +
"get:result[index],");
// Trace not hit.
reset();
execResult = [ null ];
lastIndexResult = [ 10, , ];
lastIndexExpected = [ 0, 10 ];
ret = RegExp.prototype[Symbol.search].call(myRegExp, target);
assertEq(ret, -1);
assertEq(log,
"get:lastIndex," +
"set:lastIndex," +
"get:exec,call:exec," +
"set:lastIndex,");
if (typeof reportCompare === "function")
reportCompare(true, true);
|
