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https://github.com/cappuccino/cappuccino.git
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517 lines
15 KiB
JavaScript
517 lines
15 KiB
JavaScript
/*
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* Executable.js
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* Objective-J
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*
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* Created by Francisco Tolmasky.
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* Copyright 2010, 280 North, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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var ExecutableUnloadedFileDependencies = 0,
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ExecutableLoadingFileDependencies = 1,
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ExecutableLoadedFileDependencies = 2,
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AnonymousExecutableCount = 0;
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function Executable(/*String*/ aCode, /*Array*/ fileDependencies, /*CFURL|String*/ aURL, /*Function*/ aFunction, /*ObjJCompiler*/aCompiler, /*Dictionary*/ aFilenameTranslateDictionary)
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{
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if (arguments.length === 0)
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return this;
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this._code = aCode;
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this._function = aFunction || null;
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this._URL = makeAbsoluteURL(aURL || new CFURL("(Anonymous" + (AnonymousExecutableCount++) + ")"));
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this._compiler = aCompiler || null;
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this._fileDependencies = fileDependencies;
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this._filenameTranslateDictionary = aFilenameTranslateDictionary;
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if (fileDependencies.length)
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{
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this._fileDependencyStatus = ExecutableUnloadedFileDependencies;
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this._fileDependencyCallbacks = [];
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}
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else
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this._fileDependencyStatus = ExecutableLoadedFileDependencies;
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if (this._function)
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return;
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if (!aCompiler)
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this.setCode(aCode);
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}
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exports.Executable = Executable;
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Executable.prototype.path = function()
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{
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return this.URL().path();
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};
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Executable.prototype.URL = function()
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{
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return this._URL;
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};
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DISPLAY_NAME(Executable.prototype.URL);
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Executable.prototype.functionParameters = function()
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{
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var functionParameters = ["global", "objj_executeFile", "objj_importFile"];
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//exportedNames().concat("objj_executeFile", "objj_importFile");
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#ifdef COMMONJS
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functionParameters = functionParameters.concat("require", "exports", "module", "system", "print", "window");
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#endif
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return functionParameters;
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};
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DISPLAY_NAME(Executable.prototype.functionParameters);
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Executable.prototype.functionArguments = function()
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{
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var functionArguments = [global, this.fileExecuter(), this.fileImporter()];
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#ifdef COMMONJS
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functionArguments = functionArguments.concat(Executable.commonJSArguments());
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#endif
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return functionArguments;
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};
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DISPLAY_NAME(Executable.prototype.functionArguments);
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#ifdef COMMONJS
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Executable.setCommonJSParameters = function()
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{
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this._commonJSParameters = Array.prototype.slice.call(arguments);
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};
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Executable.commonJSParameters = function()
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{
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return this._commonJSParameters || [];
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};
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Executable.setCommonJSArguments = function()
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{
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this._commonJSArguments = Array.prototype.slice.call(arguments);
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};
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Executable.commonJSArguments = function()
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{
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return this._commonJSArguments || [];
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};
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Executable.setFilenameTranslateDictionary = function(dict)
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{
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this._filenameTranslateDictionary = dict;
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};
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Executable.filenameTranslateDictionary = function()
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{
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return this._filenameTranslateDictionary || {};
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};
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Executable.prototype.toMarkedString = function()
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{
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var markedString = "@STATIC;1.0;",
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dependencies = this.fileDependencies(),
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index = 0,
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count = dependencies.length;
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for (; index < count; ++index)
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markedString += dependencies[index].toMarkedString();
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var code = this.code();
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return markedString + MARKER_TEXT + ";" + code.length + ";" + code;
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};
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#endif
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Executable.prototype.execute = function()
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{
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#if EXECUTION_LOGGING
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CPLog("EXECUTION: " + this.URL());
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#endif
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if (this._compiler)
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{
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var fileDependencies = this.fileDependencies(),
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index = 0,
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count = fileDependencies.length;
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for (; index < count; ++index)
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{
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var fileDependency = fileDependencies[index],
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isQuoted = fileDependency.isLocal(),
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URL = fileDependency.URL();
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this.fileExecuter()(URL, isQuoted);
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}
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this.setCode(this._compiler.compilePass2());
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this._compiler = null;
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}
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var oldContextBundle = CONTEXT_BUNDLE;
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// FIXME: Should we have stored this?
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CONTEXT_BUNDLE = CFBundle.bundleContainingURL(this.URL());
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var result = this._function.apply(global, this.functionArguments());
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CONTEXT_BUNDLE = oldContextBundle;
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return result;
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};
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DISPLAY_NAME(Executable.prototype.execute);
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Executable.prototype.code = function()
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{
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return this._code;
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};
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DISPLAY_NAME(Executable.prototype.code);
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Executable.prototype.setCode = function(code)
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{
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this._code = code;
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var parameters = this.functionParameters().join(",");
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#if COMMONJS
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if (typeof system !== "undefined" && system.engine === "rhino")
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{
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code = "function(" + parameters + "){" + code + "/**/\n}";
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this._function = Packages.org.mozilla.javascript.Context.getCurrentContext().compileFunction(window, code, this.URL().absoluteString(), 0, NULL);
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}
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else
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{
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#endif
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#if DEBUG
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// "//@ sourceURL=" at the end lets us name our eval'd files for debuggers, etc.
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// * WebKit: http://pmuellr.blogspot.com/2009/06/debugger-friendly.html
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// * Firebug: http://blog.getfirebug.com/2009/08/11/give-your-eval-a-name-with-sourceurl/
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//if (YES) {
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var absoluteString = this.URL().absoluteString();
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code += "/**/\n//@ sourceURL=" + absoluteString;
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//} else {
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// // Firebug only does it for "eval()", not "new Function()". Ugh. Slower.
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// var functionText = "(function(){"+GET_CODE(aFragment)+"/**/\n})\n//@ sourceURL="+GET_FILE(aFragment).path;
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// compiled = eval(functionText);
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//}
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#endif
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this._function = new Function(parameters, code);
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#if DEBUG
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this._function.displayName = absoluteString;
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#endif
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#if COMMONJS
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}
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#endif
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}
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DISPLAY_NAME(Executable.prototype.setCode);
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Executable.prototype.fileDependencies = function()
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{
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return this._fileDependencies;
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}
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DISPLAY_NAME(Executable.prototype.fileDependencies);
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Executable.prototype.hasLoadedFileDependencies = function()
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{
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return this._fileDependencyStatus === ExecutableLoadedFileDependencies;
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}
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DISPLAY_NAME(Executable.prototype.hasLoadedFileDependencies);
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var fileDependencyLoadCount = 0,
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fileDependencyExecutables = [],
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fileDependencyMarkers = { };
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Executable.prototype.loadFileDependencies = function(aCallback)
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{
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var status = this._fileDependencyStatus;
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if (aCallback)
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{
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if (status === ExecutableLoadedFileDependencies)
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return aCallback();
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this._fileDependencyCallbacks.push(aCallback);
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}
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if (status === ExecutableUnloadedFileDependencies)
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{
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if (fileDependencyLoadCount)
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throw "Can't load";
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loadFileDependenciesForExecutable(this);
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}
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}
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DISPLAY_NAME(Executable.prototype.loadFileDependencies);
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function loadFileDependenciesForExecutable(/*Executable*/ anExecutable)
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{
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fileDependencyExecutables.push(anExecutable);
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anExecutable._fileDependencyStatus = ExecutableLoadingFileDependencies;
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var fileDependencies = anExecutable.fileDependencies(),
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index = 0,
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count = fileDependencies.length,
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referenceURL = anExecutable.referenceURL(),
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referenceURLString = referenceURL.absoluteString(),
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fileExecutableSearcher = anExecutable.fileExecutableSearcher();
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fileDependencyLoadCount += count;
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for (; index < count; ++index)
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{
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var fileDependency = fileDependencies[index],
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isQuoted = fileDependency.isLocal(),
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URL = fileDependency.URL(),
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marker = (isQuoted && (referenceURLString + " ") || "") + URL;
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if (fileDependencyMarkers[marker])
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{
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if (--fileDependencyLoadCount === 0)
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fileExecutableDependencyLoadFinished();
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continue;
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}
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fileDependencyMarkers[marker] = YES;
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fileExecutableSearcher(URL, isQuoted, fileExecutableSearchFinished);
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}
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}
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function fileExecutableSearchFinished(/*FileExecutable*/ aFileExecutable)
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{
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--fileDependencyLoadCount;
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if (aFileExecutable._fileDependencyStatus === ExecutableUnloadedFileDependencies)
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loadFileDependenciesForExecutable(aFileExecutable);
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else if (fileDependencyLoadCount === 0)
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fileExecutableDependencyLoadFinished();
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}
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function fileExecutableDependencyLoadFinished()
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{
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var executables = fileDependencyExecutables,
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index = 0,
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count = executables.length;
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fileDependencyExecutables = [];
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for (; index < count; ++index)
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executables[index]._fileDependencyStatus = ExecutableLoadedFileDependencies;
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for (index = 0; index < count; ++index)
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{
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var executable = executables[index],
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callbacks = executable._fileDependencyCallbacks,
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callbackIndex = 0,
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callbackCount = callbacks.length;
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for (; callbackIndex < callbackCount; ++callbackIndex)
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callbacks[callbackIndex]();
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executable._fileDependencyCallbacks = [];
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}
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}
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Executable.prototype.referenceURL = function()
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{
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if (this._referenceURL === undefined)
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this._referenceURL = new CFURL(".", this.URL());
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return this._referenceURL;
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}
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DISPLAY_NAME(Executable.prototype.referenceURL);
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Executable.prototype.fileImporter = function()
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{
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return Executable.fileImporterForURL(this.referenceURL());
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}
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DISPLAY_NAME(Executable.prototype.fileImporter);
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Executable.prototype.fileExecuter = function()
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{
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return Executable.fileExecuterForURL(this.referenceURL());
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}
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DISPLAY_NAME(Executable.prototype.fileExecuter);
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Executable.prototype.fileExecutableSearcher = function()
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{
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return Executable.fileExecutableSearcherForURL(this.referenceURL());
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}
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DISPLAY_NAME(Executable.prototype.fileExecutableSearcher);
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var cachedFileExecuters = { };
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Executable.fileExecuterForURL = function(/*CFURL|String*/ aURL)
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{
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var referenceURL = makeAbsoluteURL(aURL),
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referenceURLString = referenceURL.absoluteString(),
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cachedFileExecuter = cachedFileExecuters[referenceURLString];
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if (!cachedFileExecuter)
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{
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cachedFileExecuter = function(/*CFURL*/ aURL, /*BOOL*/ isQuoted, /*BOOL*/ shouldForce)
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{
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Executable.fileExecutableSearcherForURL(referenceURL)(aURL, isQuoted,
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function(/*FileExecutable*/ aFileExecutable)
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{
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if (!aFileExecutable.hasLoadedFileDependencies())
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throw "No executable loaded for file at URL " + aURL;
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aFileExecutable.execute(shouldForce);
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});
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}
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cachedFileExecuters[referenceURLString] = cachedFileExecuter;
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}
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return cachedFileExecuter;
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}
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DISPLAY_NAME(Executable.fileExecuterForURL);
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var cachedFileImporters = { };
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Executable.fileImporterForURL = function(/*CFURL|String*/ aURL)
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{
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var referenceURL = makeAbsoluteURL(aURL),
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referenceURLString = referenceURL.absoluteString(),
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cachedFileImporter = cachedFileImporters[referenceURLString];
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if (!cachedFileImporter)
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{
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cachedFileImporter = function(/*CFURL*/ aURL, /*BOOL*/ isQuoted, /*Function*/ aCallback)
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{
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// We make heavy use of URLs throughout this process, so cache them!
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enableCFURLCaching();
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Executable.fileExecutableSearcherForURL(referenceURL)(aURL, isQuoted,
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function(/*FileExecutable*/ aFileExecutable)
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{
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aFileExecutable.loadFileDependencies(function()
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{
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aFileExecutable.execute();
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// No more need to cache these.
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disableCFURLCaching();
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if (aCallback)
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aCallback();
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});
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});
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}
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cachedFileImporters[referenceURLString] = cachedFileImporter;
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}
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return cachedFileImporter;
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}
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DISPLAY_NAME(Executable.fileImporterForURL);
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var cachedFileExecutableSearchers = { },
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cachedFileExecutableSearchResults = { };
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function countProp(x) {
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var count = 0;
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for (var k in x) {
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if (x.hasOwnProperty(k)) {
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++count;
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}
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}
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return count;
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}
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Executable.resetCachedFileExecutableSearchers = function()
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{
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cachedFileExecutableSearchers = { };
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cachedFileExecutableSearchResults = { };
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cachedFileImporters = { };
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cachedFileExecuters = { };
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fileDependencyMarkers = { };
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}
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Executable.fileExecutableSearcherForURL = function(/*CFURL*/ referenceURL)
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{
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var referenceURLString = referenceURL.absoluteString(),
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cachedFileExecutableSearcher = cachedFileExecutableSearchers[referenceURLString],
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aFilenameTranslateDictionary = Executable.filenameTranslateDictionary ? Executable.filenameTranslateDictionary() : null;
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cachedSearchResults = { };
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if (!cachedFileExecutableSearcher)
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{
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cachedFileExecutableSearcher = function(/*CFURL*/ aURL, /*BOOL*/ isQuoted, /*Function*/ success)
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{
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var cacheUID = (isQuoted && referenceURL || "") + aURL,
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cachedResult = cachedFileExecutableSearchResults[cacheUID];
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if (cachedResult)
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return completed(cachedResult);
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var isAbsoluteURL = (aURL instanceof CFURL) && aURL.scheme();
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if (isQuoted || isAbsoluteURL)
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{
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if (!isAbsoluteURL)
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aURL = new CFURL(aURL, referenceURL);
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StaticResource.resolveResourceAtURL(aURL, NO, completed, aFilenameTranslateDictionary);
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}
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else
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StaticResource.resolveResourceAtURLSearchingIncludeURLs(aURL, completed);
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function completed(/*StaticResource*/ aStaticResource)
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{
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if (!aStaticResource)
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{
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var compilingFileUrl = ObjJCompiler && ObjJCompiler.currentCompileFile ? ObjJCompiler.currentCompileFile : null;
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throw new Error("Could not load file at " + aURL + (compilingFileUrl ? " when compiling " + compilingFileUrl : ""));
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}
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cachedFileExecutableSearchResults[cacheUID] = aStaticResource;
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success(new FileExecutable(aStaticResource.URL(), aFilenameTranslateDictionary));
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}
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};
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cachedFileExecutableSearchers[referenceURLString] = cachedFileExecutableSearcher;
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}
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return cachedFileExecutableSearcher;
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}
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DISPLAY_NAME(Executable.fileExecutableSearcherForURL);
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