aurelia-bootstrap
Version:
Bootstrap components written in Aurelia.
242 lines (241 loc) • 11.3 kB
JavaScript
/* */
;
module.exports = function(Promise, INTERNAL) {
var THIS = {};
var util = require('./util');
var nodebackForPromise = require('./nodeback');
var withAppended = util.withAppended;
var maybeWrapAsError = util.maybeWrapAsError;
var canEvaluate = util.canEvaluate;
var TypeError = require('./errors').TypeError;
var defaultSuffix = "Async";
var defaultPromisified = {__isPromisified__: true};
var noCopyProps = ["arity", "length", "name", "arguments", "caller", "callee", "prototype", "__isPromisified__"];
var noCopyPropsPattern = new RegExp("^(?:" + noCopyProps.join("|") + ")$");
var defaultFilter = function(name) {
return util.isIdentifier(name) && name.charAt(0) !== "_" && name !== "constructor";
};
function propsFilter(key) {
return !noCopyPropsPattern.test(key);
}
function isPromisified(fn) {
try {
return fn.__isPromisified__ === true;
} catch (e) {
return false;
}
}
function hasPromisified(obj, key, suffix) {
var val = util.getDataPropertyOrDefault(obj, key + suffix, defaultPromisified);
return val ? isPromisified(val) : false;
}
function checkValid(ret, suffix, suffixRegexp) {
for (var i = 0; i < ret.length; i += 2) {
var key = ret[i];
if (suffixRegexp.test(key)) {
var keyWithoutAsyncSuffix = key.replace(suffixRegexp, "");
for (var j = 0; j < ret.length; j += 2) {
if (ret[j] === keyWithoutAsyncSuffix) {
throw new TypeError("Cannot promisify an API that has normal methods with '%s'-suffix\u000a\u000a See http://goo.gl/MqrFmX\u000a".replace("%s", suffix));
}
}
}
}
}
function promisifiableMethods(obj, suffix, suffixRegexp, filter) {
var keys = util.inheritedDataKeys(obj);
var ret = [];
for (var i = 0; i < keys.length; ++i) {
var key = keys[i];
var value = obj[key];
var passesDefaultFilter = filter === defaultFilter ? true : defaultFilter(key, value, obj);
if (typeof value === "function" && !isPromisified(value) && !hasPromisified(obj, key, suffix) && filter(key, value, obj, passesDefaultFilter)) {
ret.push(key, value);
}
}
checkValid(ret, suffix, suffixRegexp);
return ret;
}
var escapeIdentRegex = function(str) {
return str.replace(/([$])/, "\\$");
};
var makeNodePromisifiedEval;
if (!false) {
var switchCaseArgumentOrder = function(likelyArgumentCount) {
var ret = [likelyArgumentCount];
var min = Math.max(0, likelyArgumentCount - 1 - 3);
for (var i = likelyArgumentCount - 1; i >= min; --i) {
ret.push(i);
}
for (var i = likelyArgumentCount + 1; i <= 3; ++i) {
ret.push(i);
}
return ret;
};
var argumentSequence = function(argumentCount) {
return util.filledRange(argumentCount, "_arg", "");
};
var parameterDeclaration = function(parameterCount) {
return util.filledRange(Math.max(parameterCount, 3), "_arg", "");
};
var parameterCount = function(fn) {
if (typeof fn.length === "number") {
return Math.max(Math.min(fn.length, 1023 + 1), 0);
}
return 0;
};
makeNodePromisifiedEval = function(callback, receiver, originalName, fn, _, multiArgs) {
var newParameterCount = Math.max(0, parameterCount(fn) - 1);
var argumentOrder = switchCaseArgumentOrder(newParameterCount);
var shouldProxyThis = typeof callback === "string" || receiver === THIS;
function generateCallForArgumentCount(count) {
var args = argumentSequence(count).join(", ");
var comma = count > 0 ? ", " : "";
var ret;
if (shouldProxyThis) {
ret = "ret = callback.call(this, {{args}}, nodeback); break;\n";
} else {
ret = receiver === undefined ? "ret = callback({{args}}, nodeback); break;\n" : "ret = callback.call(receiver, {{args}}, nodeback); break;\n";
}
return ret.replace("{{args}}", args).replace(", ", comma);
}
function generateArgumentSwitchCase() {
var ret = "";
for (var i = 0; i < argumentOrder.length; ++i) {
ret += "case " + argumentOrder[i] + ":" + generateCallForArgumentCount(argumentOrder[i]);
}
ret += " \n\
default: \n\
var args = new Array(len + 1); \n\
var i = 0; \n\
for (var i = 0; i < len; ++i) { \n\
args[i] = arguments[i]; \n\
} \n\
args[i] = nodeback; \n\
[CodeForCall] \n\
break; \n\
".replace("[CodeForCall]", (shouldProxyThis ? "ret = callback.apply(this, args);\n" : "ret = callback.apply(receiver, args);\n"));
return ret;
}
var getFunctionCode = typeof callback === "string" ? ("this != null ? this['" + callback + "'] : fn") : "fn";
var body = "'use strict'; \n\
var ret = function (Parameters) { \n\
'use strict'; \n\
var len = arguments.length; \n\
var promise = new Promise(INTERNAL); \n\
promise._captureStackTrace(); \n\
var nodeback = nodebackForPromise(promise, " + multiArgs + "); \n\
var ret; \n\
var callback = tryCatch([GetFunctionCode]); \n\
switch(len) { \n\
[CodeForSwitchCase] \n\
} \n\
if (ret === errorObj) { \n\
promise._rejectCallback(maybeWrapAsError(ret.e), true, true);\n\
} \n\
if (!promise._isFateSealed()) promise._setAsyncGuaranteed(); \n\
return promise; \n\
}; \n\
notEnumerableProp(ret, '__isPromisified__', true); \n\
return ret; \n\
".replace("[CodeForSwitchCase]", generateArgumentSwitchCase()).replace("[GetFunctionCode]", getFunctionCode);
body = body.replace("Parameters", parameterDeclaration(newParameterCount));
return new Function("Promise", "fn", "receiver", "withAppended", "maybeWrapAsError", "nodebackForPromise", "tryCatch", "errorObj", "notEnumerableProp", "INTERNAL", body)(Promise, fn, receiver, withAppended, maybeWrapAsError, nodebackForPromise, util.tryCatch, util.errorObj, util.notEnumerableProp, INTERNAL);
};
}
function makeNodePromisifiedClosure(callback, receiver, _, fn, __, multiArgs) {
var defaultThis = (function() {
return this;
})();
var method = callback;
if (typeof method === "string") {
callback = fn;
}
function promisified() {
var _receiver = receiver;
if (receiver === THIS)
_receiver = this;
var promise = new Promise(INTERNAL);
promise._captureStackTrace();
var cb = typeof method === "string" && this !== defaultThis ? this[method] : callback;
var fn = nodebackForPromise(promise, multiArgs);
try {
cb.apply(_receiver, withAppended(arguments, fn));
} catch (e) {
promise._rejectCallback(maybeWrapAsError(e), true, true);
}
if (!promise._isFateSealed())
promise._setAsyncGuaranteed();
return promise;
}
util.notEnumerableProp(promisified, "__isPromisified__", true);
return promisified;
}
var makeNodePromisified = canEvaluate ? makeNodePromisifiedEval : makeNodePromisifiedClosure;
function promisifyAll(obj, suffix, filter, promisifier, multiArgs) {
var suffixRegexp = new RegExp(escapeIdentRegex(suffix) + "$");
var methods = promisifiableMethods(obj, suffix, suffixRegexp, filter);
for (var i = 0,
len = methods.length; i < len; i += 2) {
var key = methods[i];
var fn = methods[i + 1];
var promisifiedKey = key + suffix;
if (promisifier === makeNodePromisified) {
obj[promisifiedKey] = makeNodePromisified(key, THIS, key, fn, suffix, multiArgs);
} else {
var promisified = promisifier(fn, function() {
return makeNodePromisified(key, THIS, key, fn, suffix, multiArgs);
});
util.notEnumerableProp(promisified, "__isPromisified__", true);
obj[promisifiedKey] = promisified;
}
}
util.toFastProperties(obj);
return obj;
}
function promisify(callback, receiver, multiArgs) {
return makeNodePromisified(callback, receiver, undefined, callback, null, multiArgs);
}
Promise.promisify = function(fn, options) {
if (typeof fn !== "function") {
throw new TypeError("expecting a function but got " + util.classString(fn));
}
if (isPromisified(fn)) {
return fn;
}
options = Object(options);
var receiver = options.context === undefined ? THIS : options.context;
var multiArgs = !!options.multiArgs;
var ret = promisify(fn, receiver, multiArgs);
util.copyDescriptors(fn, ret, propsFilter);
return ret;
};
Promise.promisifyAll = function(target, options) {
if (typeof target !== "function" && typeof target !== "object") {
throw new TypeError("the target of promisifyAll must be an object or a function\u000a\u000a See http://goo.gl/MqrFmX\u000a");
}
options = Object(options);
var multiArgs = !!options.multiArgs;
var suffix = options.suffix;
if (typeof suffix !== "string")
suffix = defaultSuffix;
var filter = options.filter;
if (typeof filter !== "function")
filter = defaultFilter;
var promisifier = options.promisifier;
if (typeof promisifier !== "function")
promisifier = makeNodePromisified;
if (!util.isIdentifier(suffix)) {
throw new RangeError("suffix must be a valid identifier\u000a\u000a See http://goo.gl/MqrFmX\u000a");
}
var keys = util.inheritedDataKeys(target);
for (var i = 0; i < keys.length; ++i) {
var value = target[keys[i]];
if (keys[i] !== "constructor" && util.isClass(value)) {
promisifyAll(value.prototype, suffix, filter, promisifier, multiArgs);
promisifyAll(value, suffix, filter, promisifier, multiArgs);
}
}
return promisifyAll(target, suffix, filter, promisifier, multiArgs);
};
};