/** @constructor */

JSDOC.SymbolSet = function() {

	this.init();

}

JSDOC.SymbolSet.prototype.init = function() {

	this._index = new Hash();

}

JSDOC.SymbolSet.prototype.keys = function() {

	return this._index.keys();

}

JSDOC.SymbolSet.prototype.hasSymbol = function(alias) {

	return this._index.hasKey(alias);

}

JSDOC.SymbolSet.prototype.addSymbol = function(symbol) {

	if (JSDOC.opt.a && this.hasSymbol(symbol.alias)) {

		LOG.warn("Overwriting symbol documentation for: " + symbol.alias + ".");

		this.deleteSymbol(symbol.alias);

	}

	this._index.set(symbol.alias, symbol);

}

JSDOC.SymbolSet.prototype.getSymbol = function(alias) {

	if (this.hasSymbol(alias)) return this._index.get(alias);

}

JSDOC.SymbolSet.prototype.getSymbolByName = function(name) {

	for (var p = this._index.first(); p; p = this._index.next()) {

		var symbol = p.value;

		if (symbol.name == name) return symbol;

	}

}

JSDOC.SymbolSet.prototype.toArray = function() {

	return this._index.values();

}

JSDOC.SymbolSet.prototype.deleteSymbol = function(alias) {

	if (!this.hasSymbol(alias)) return;

	this._index.drop(alias);

}

JSDOC.SymbolSet.prototype.renameSymbol = function(oldName, newName) {

	// todo: should check if oldname or newname already exist

	this._index.replace(oldName, newName);

	this._index.get(newName).alias = newName;

	return newName;

}

JSDOC.SymbolSet.prototype.relate = function() {

	this.resolveBorrows();

	this.resolveMemberOf();

	this.resolveAugments();

}

JSDOC.SymbolSet.prototype.resolveBorrows = function() {

	for (var p = this._index.first(); p; p = this._index.next()) {

		var symbol = p.value;

		if (symbol.is("FILE") || symbol.is("GLOBAL")) continue;

		var borrows = symbol.inherits;

		for (var i = 0; i < borrows.length; i++) {

if (/#$/.test(borrows[i].alias)) {

	LOG.warn("Attempted to borrow entire instance of "+borrows[i].alias+" but that feature is not yet implemented.");

	return;

}

			var borrowed = this.getSymbol(borrows[i].alias);

			if (!borrowed) {

				LOG.warn("Can't borrow undocumented "+borrows[i].alias+".");

				continue;

			}

			if (borrows[i].as == borrowed.alias) {

				var assumedName = borrowed.name.split(/([#.-])/).pop();

				borrows[i].as = symbol.name+RegExp.$1+assumedName;

				LOG.inform("Assuming borrowed as name is "+borrows[i].as+" but that feature is experimental.");

			}

			var borrowAsName = borrows[i].as;

			var borrowAsAlias = borrowAsName;

			if (!borrowAsName) {

				LOG.warn("Malformed @borrow, 'as' is required.");

				continue;

			}

			if (borrowAsName.length > symbol.alias.length && borrowAsName.indexOf(symbol.alias) == 0) {

				borrowAsName = borrowAsName.replace(borrowed.alias, "")

			}

			else {

				var joiner = "";

				if (borrowAsName.charAt(0) != "#") joiner = ".";

				borrowAsAlias = borrowed.alias + joiner + borrowAsName;

			}

			borrowAsName = borrowAsName.replace(/^[#.]/, "");

			if (this.hasSymbol(borrowAsAlias)) continue;

			var clone = borrowed.clone();

			clone.name = borrowAsName;

			clone.alias = borrowAsAlias;

			this.addSymbol(clone);

		}

	}

}

JSDOC.SymbolSet.prototype.resolveMemberOf = function() {

	for (var p = this._index.first(); p; p = this._index.next()) {

		var symbol = p.value;

		if (symbol.is("FILE") || symbol.is("GLOBAL")) continue;

		// the memberOf value was provided in the @memberOf tag

		else if (symbol.memberOf) {			

			// like foo.bar is a memberOf foo

			if (symbol.alias.indexOf(symbol.memberOf) == 0) {

				var memberMatch = new RegExp("^("+symbol.memberOf+")[.#-]?(.+)$");

				var aliasParts = symbol.alias.match(memberMatch);

				if (aliasParts) {

					symbol.memberOf = aliasParts[1];

					symbol.name = aliasParts[2];

				}

				var nameParts = symbol.name.match(memberMatch);

				if (nameParts) {

					symbol.name = nameParts[2];

				}

			}

			// like bar is a memberOf foo

			else {

				var joiner = symbol.memberOf.charAt(symbol.memberOf.length-1);

				if (!/[.#-]/.test(joiner)) symbol.memberOf += ".";

				this.renameSymbol(symbol.alias, symbol.memberOf + symbol.name);

			}

		}

		// the memberOf must be calculated

		else {

			var parts = symbol.alias.match(/^(.*[.#-])([^.#-]+)$/);

			if (parts) {

				symbol.memberOf = parts[1];

				symbol.name = parts[2];				

			}

		}

		// set isStatic, isInner

		if (symbol.memberOf) {

			switch (symbol.memberOf.charAt(symbol.memberOf.length-1)) {

				case '#' :

					symbol.isStatic = false;

					symbol.isInner = false;

				break;

				case '.' :

					symbol.isStatic = true;

					symbol.isInner = false;

				break;

				case '-' :

					symbol.isStatic = false;

					symbol.isInner = true;

				break;

				default: // memberOf ends in none of the above

					symbol.isStatic = true;

				break;

			}

		}

		// unowned methods and fields belong to the global object

		if (!symbol.is("CONSTRUCTOR") && !symbol.isNamespace && symbol.memberOf == "") {

			symbol.memberOf = "_global_";

		}

		// clean up

		if (symbol.memberOf.match(/[.#-]$/)) {

			symbol.memberOf = symbol.memberOf.substr(0, symbol.memberOf.length-1);

		}

		// add to parent's methods or properties list

		if (symbol.memberOf) {

			var container = this.getSymbol(symbol.memberOf);

			if (!container) {

				if (JSDOC.Lang.isBuiltin(symbol.memberOf)) container = JSDOC.Parser.addBuiltin(symbol.memberOf);

				else {

					LOG.warn("Trying to document "+symbol.name +" as a member of undocumented symbol "+symbol.memberOf+".");

				}

			}

			if (container) container.addMember(symbol);

		}

	}

}

JSDOC.SymbolSet.prototype.resolveAugments = function() {

	for (var p = this._index.first(); p; p = this._index.next()) {

		var symbol = p.value;

		if (symbol.alias == "_global_" || symbol.is("FILE")) continue;

		JSDOC.SymbolSet.prototype.walk.apply(this, [symbol]);

	}

}

JSDOC.SymbolSet.prototype.walk = function(symbol) {

	var augments = symbol.augments;

	for(var i = 0; i < augments.length; i++) {

		var contributer = this.getSymbol(augments[i]);

		if (!contributer && JSDOC.Lang.isBuiltin(''+augments[i])) {

			contributer = new JSDOC.Symbol("_global_."+augments[i], [], augments[i], new JSDOC.DocComment("Built in."));

			contributer.isNamespace = true;

			contributer.srcFile = "";

			contributer.isPrivate = false;

			JSDOC.Parser.addSymbol(contributer);

		}

		if (contributer) {			

			if (contributer.augments.length) {

				JSDOC.SymbolSet.prototype.walk.apply(this, [contributer]);

			}

			symbol.inheritsFrom.push(contributer.alias);

			//if (!isUnique(symbol.inheritsFrom)) {

			//	LOG.warn("Can't resolve augments: Circular reference: "+symbol.alias+" inherits from "+contributer.alias+" more than once.");

			//}

			//else {

				var cmethods = contributer.methods;

				var cproperties = contributer.properties;

				for (var ci = 0, cl = cmethods.length; ci < cl; ci++) {

					if (!cmethods[ci].isStatic) symbol.inherit(cmethods[ci]);

				}

				for (var ci = 0, cl = cproperties.length; ci < cl; ci++) {

					if (!cproperties[ci].isStatic) symbol.inherit(cproperties[ci]);

				}	

			//}

		}

		else LOG.warn("Can't augment contributer: "+augments[i]+", not found.");

	}

}