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javascriptインタプリタはコードを圧縮した後にSytaxErrorをトリガしますが、コードでこの問題を引き起こした正確な位置がわかりません。見つけにくいです。私もjsLintを試しましたが、問題を指摘できません。 、私はパッカーに作品によってコードピースを貼り付け 私は最終的に自分でこの問題を解決：Javascript SytaxError例外が発生した場合の正確な位置の取得方法
(function(){var session,start,end,pool={length:0},result=[],id=0;function poolAdd(procedure,expected,description){pool[id+++""]={"description":description||"No description","procedure":procedure,"expected":expected};pool["length"]++;return id-1;}function poolRun(id){var actual,expect,pass,test=pool[id];if(test){try{actual=typeof test.procedure==="function"?test.procedure():test.procedure;expect=typeof test.expected==="function"?test.expected():test.expected;pass=actual===expect;if(pass){test["pass"]=true}else{test["fail"]={"actual":actual,"expect":expect}}}catch(e){test["fail"]={"message":e.toString()}}finally{delete pool[id];pool.length--;return result.push(test)-1;}}return-1;}function percentage(fraction){return!(fraction>=0&&fraction<=1)?"Not available":(fraction*100+"").substr(0,5)+"%"}function Statics(data,session){if(this instanceof Statics){this.data=(data||result).slice(0);if(session){this.session={id:session.id,end:session.end,start:session.start}}}else{return new Statics(data,session)}}Statics.prototype={statics:function(format){var temp,report,passed=[],failed=[];format=format||"text";for(var i=0,l=this.data.length;i<l;i++){temp=this.data[i];if(typeof temp==="number"){temp=result[temp+""]}temp.pass&&passed.push(temp);temp.fail&&failed.push(temp)}if(format==="text"){report=[];report.push("***"+(this.session?" Session("+this.session.id+")":"")+" Test Report ***");report.push(" Cost: "+(this.session?(this.session.end-this.session.start)/1000:(end-start)/1000)+" seconds");report.push(" Total: "+this.data.length);report.push("Passed: "+passed.length);report.push("Failed: "+failed.length);report.push("Percet: "+percentage(passed.length/this.data.length));if(failed.length>0){report.push("Detail:");for(var i=0,l=failed.length;i<l;i++){temp=failed[i];if(temp.fail.message){report.push(i+1+")."+" >>>EXCEPTION THROWN<<< in test("+temp.description+") "+temp.fail.message)}else{report.push(i+1+")."+" >>>VALUE NOT MATCH<<< in test("+temp.description+") "+" expected "+temp.fail.expect+" actual "+temp.fail.actual)}}}return report.join("\n")}}}function session_start(){session=new Session();session.start=+new Date;}function session_end(){session&&(session.end=+new Date)}function session_destory(){session=null}function Session(){this.id=QQWB.uid();this.idPool=[];}Session.prototype={_addId:function(id){this.idPool.push(id)},add:function(procedure,expected,description){this._addId(poolAdd(procedure,expected,description));return this},run:function(){var temp,statics,results=[];for(var i=0,l=this.idPool.length;i<l;i++){temp=poolRun(this.idPool[i]);temp&&results.push(temp)}session_end();statics=Statics(results,session);session_destory();return statics}};QQWB.extend("test",{add:function(procedure,expected,description){session_start();session._addId(poolAdd(procedure,expected,description));return session},run:function(){session_destory();start=+new Date;for(var id in pool){if(id!=='length'&&pool.hasOwnProperty(id)){poolRun(id)}}end=+new Date;return Statics()},remains:function(){return pool.length}})}());
これは、スクリプトパッカー編集 http://dean.edwards.name/packer/
がある
(function(){
var
session, // test session
start, // start time of call test.run()
end, // end time of test.run()
pool = {length:0}, // pool of all the tests removed from pool when test done
result = [], // pool of the result of test
id = 0; // test unique id auto increment
/**
* Add a test item to pool
*
* @access private
* @return {Number} the index in the pool
*/
function poolAdd(procedure, expected, description) {
pool[id+++""] = {
"description": description || "No description"
,"procedure": procedure
,"expected": expected
};
pool["length"]++; // maintain the length property of pool
return id - 1; // id of current test
}
/**
* Run a test
*
* Test item will be marked as pass or fail then move from
* test's pool to result's pool
*
* @access private
* @param id {Number} the index in the test pool
* @return {Number} the index in the result pool
*/
function poolRun(id) {
var
actual, // actual value
expect, // expected value
pass, // indicate test whether passed
test = pool[id]; // the test object
if (test) {
try{
actual = typeof test.procedure === "function" ? test.procedure() : test.procedure; // run test procedure
expect = typeof test.expected === "function" ? test.expected() : test.expected; // run expect procedure
pass = actual === expect;
if (pass) {
test["pass"] = true;
} else {
test["fail"] = {
"actual": actual
,"expect": expect
}
}
} catch (e) {
test["fail"] = {
"message": e.toString()
}
} finally {
delete pool[id]; // remove from pool
pool.length--; // maintain the length property of pool
return result.push(test) - 1; // the index in the result array for current test item
}
}
return -1; // id not valid
}
/**
* Float to percentage string
*
* @access private
* @param fraction {Number} float number
* @return {String} percentage string
*/
function percentage (fraction) {
return !(fraction >= 0 && fraction <= 1) ? "Not available" : (fraction * 100 + "").substr(0,5) + "%";
}
/**
* Statics constructor
*
* Self invoke constructor
*
* Note:
* If data is passed in,it means the statics running in a session
* Data contains *position* of result pool
*
* @access private
* @param data {Array} partial result keys array or the result
* @return {Statics} a statics instance
*/
function Statics(data, session) {
if (this instanceof Statics) {
this.data = (data || result).slice(0); // clone array
if (session) {
this.session = {
id: session.id
,end: session.end
,start: session.start
};
}
} else {
return new Statics(data, session);
}
}
Statics.prototype = {
/**
* Get statics
*
* Currently only support text statics
*
* @access public
* @param format {String} text,xml,json etc.
* @return {Mixed} result statics
*/
statics: function (format) {
var
temp, // temp value
report, // statics report
passed = [], // passed tests pool
failed = []; // failed tests pool
format = format || "text"; // default report type is text
for (var i=0,l=this.data.length; i<l; i++) {
temp = this.data[i];
if (typeof temp === "number") { // convert key to its value
temp = result[temp+""];
}
temp.pass && passed.push(temp);
temp.fail && failed.push(temp);
}
if (format === "text") {
report = [];
report.push("***" + (this.session ? " Session(" + this.session.id +")":"") + " Test Report ***");
report.push(" Cost: " + (this.session ? (this.session.end - this.session.start)/1000 : (end - start)/1000) + " seconds");
report.push(" Total: " + this.data.length);
report.push("Passed: " + passed.length);
report.push("Failed: " + failed.length);
report.push("Percet: " + percentage(passed.length/this.data.length));
if (failed.length > 0) {
report.push("Detail:");
for (var i=0,l=failed.length; i<l; i++) {
temp = failed[i];
if (temp.fail.message) {
report.push(i + 1 + ")." + " >>>EXCEPTION THROWN<<< in test(" + temp.description + ") " + temp.fail.message);
} else {
report.push(i + 1 + ")." + " >>>VALUE NOT MATCH<<< in test(" + temp.description + ") " + " expected " + temp.fail.expect + " actual " + temp.fail.actual);
}
}
}
return report.join("\n");
}
}
}
/**
* Start a new test session
*
* @access private
* @return {Void}
*/
function session_start() {
// if checked T.test.add(...); T.test.add(...); will be treated as one session till run is called
// if (!session) {
session = new Session();
session.start = + new Date;
// }
}
/**
* End current session
*
* @access private
* @return {Void}
*/
function session_end() {
session && (session.end = + new Date);
}
/**
* Destory current session
*
* @access private
* @return {Void}
*/
function session_destory() {
session = null;
}
/**
* Session constructor
*
* @access private
* @return {Session} session instance
*/
function Session() {
this.id = QQWB.uid(); // random session id
this.idPool = []; // contains id of test
}
Session.prototype = {
/**
* Add test id to session
*
* @access private
* @param id {Number} test id
* @return {Void}
*/
_addId: function (id) {
this.idPool.push(id);
}
/**
* Add test item to session
*
* Note:
* Test item added to global pool
* Session just store the position of test in the pool
*
* Example usage:
* T.test
* .add(...) //add a test to session(and pool)
* .add(...) //add a test to session(and pool)
* ...
*
*
* @access public
* @param procedure {Mixed} the procedure to finish this test
* if procedure is a function it will
* be executed automaticlly
* @param expected {Mixed} the expected value of this test
* if expected is a function it will
* be executed automaticlly
* @param description {String} speak more about this test
* @return {Session} the current session
*/
,add: function (procedure, expected, description) {
this._addId(poolAdd(procedure, expected, description));
return this;
}
/**
* Run the tests in current session
*
* Example usage:
* T.test
* .add(...) //add a test to session(and pool)
* .add(...) //add a test to session(and pool)
* ...
* .run() // run the test in this session
* .statics() // get statics for this session
*
* @access public
* @return {Statics} statics object
*/
,run: function() { // run in session
var temp,
statics,
results = [];
for (var i=0,l=this.idPool.length; i<l; i++) {
temp = poolRun(this.idPool[i]);
temp && results.push(temp);
}
session_end(); // record the time of this session end
statics = Statics(results,session);
session_destory();// destory test session
return statics;
}
};
QQWB.extend("test",{
/**
* Add test item to session
*
* Note:
* Test item added to global pool
* Current session will store the position of test in the pool
*
* Example usage:
* T.test
* .add(...) //add a test to session(and pool)
* .add(...) //add a test to session(and pool)
* ...
*
* @access public
* @param procedure {Mixed} the procedure to finish this test
* if procedure is a function it will
* be executed automaticlly
* @param expected {Mixed} the expected value of this test
* if expected is a function it will
* be executed automaticlly
* @param description {String} speak more about this test
* @return {Session} the current session
*/
add: function (procedure, expected, description) {
session_start(); // spawn a new session object
session._addId(poolAdd(procedure, expected, description));
return session;
}
/**
* Run all the tests except the test already done
*
* Example usage:
* T.test
* .add(...) //add a test to session(and pool)
* .add(...) //add a test to session(and pool)
* ...
*
* T.test
* .run() // run all the tests except already done
* .statics() //get full statics of all the tests
*
* @access public
* @return {Statics} statics object
*/
,run: function() {
session_destory(); // destory current session
start = + new Date; // start time of global test
for (var id in pool) {
if (id !== 'length' && pool.hasOwnProperty(id)) {
poolRun(id);
}
}
end = + new Date; // end time of global test
return Statics();
}
/**
* Get count of tests left in the pool
*
* @access public
* @return {Number} count of tests unfinished yet
*/
,remains: function() {
return pool.length;
}
});
}());
私の元のコードを追加しました。最終的にStatics.prototypeの定義がSytaxErrorの原因となったセミコロンで終わっていないことがわかります。
まだ圧縮されていないコードはありますか？変更やデバッグのために、オリジナルを常に保持する必要があります。 – Paulpro
@PaulPRO私の元のコードは – bajie
が最初に 'jsbeautifier.org'を使って' jslint.com'を使うと、間違いなく多くの人に役立つかもしれません。 – diEcho