mirror of
https://github.com/cappuccino/cappuccino.git
synced 2026-08-27 22:17:03 +00:00
371 lines
13 KiB
Plaintext
371 lines
13 KiB
Plaintext
var FILE = require("file");
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/*
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param context includes
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scope: a global variable containing objj_files hash
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ctx: js context
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dependencies: hash mapping from paths to an array of global variables defined by that file
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[importCallback]: callback function that is called for each imported file (takes importing file path, and imported file path parameters)
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[referencedCallback]: callback function that is called for each referenced file (takes referencing file path, referenced file path parameters, and list of tokens)
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[importedFiles]: hash that will contain a mapping of file names to a hash of imported files
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[referencedFiles]: hash that will contain a mapping of file names to a hash of referenced files (which contains a hash of tokens referenced)
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[processedFiles]: hash containing file paths which have already been analyzed
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param file is an objj_file object containing path, fragments, content, bundle, etc
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*/
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function traverseDependencies(context, file)
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{
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if (!context.processedFiles)
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context.processedFiles = {};
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if (context.processedFiles[file.path])
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return;
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context.processedFiles[file.path] = true;
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var ignoreImports = false;
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if (context.ignoreAllImports)
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{
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CPLog.warn("Ignoring all import fragments. ("+context.relativeToRootPath(file.path)+")");
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ignoreImports = true;
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}
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else if (context.ignoreFrameworkImports)
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{
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var matches = file.path.match(new RegExp("([^\\/]+)\\/([^\\/]+)\\.j$")); // Matches "ZZZ/ZZZ.j" (e.x. AppKit/AppKit.j and Foundation/Foundation.j)
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if (matches && matches[1] === matches[2])
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{
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CPLog.warn("Framework import file! Ignoring all import fragments. ("+context.relativeToRootPath(file.path)+")");
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ignoreImports = true;
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}
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}
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// if fragments are missing, preprocess the contents
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if (!file.fragments)
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{
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if (file.included)
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CPLog.warn(context.relativeToRootPath(file.path) + " is included but missing fragments");
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else
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CPLog.warn("Preprocessing " + context.relativeToRootPath(file.path));
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file.fragments = objj_preprocess(file.contents, file.bundle, file);
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}
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// sprite: look for pngs in the Resources directory
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if (!context.bundleImages)
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context.bundleImages = {};
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if (!context.bundleImages[file.bundle.path])
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{
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var resourcesPath = FILE.path(file.bundle.path).dirname().join("/Resources");
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if (resourcesPath.exists())
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{
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context.bundleImages[file.bundle.path] = {};
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resourcesPath.glob("**/*.png").forEach(function(png) {
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var pngPath = resourcesPath.join(png);
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var relativePath = pathRelativeTo(pngPath.absolute(), resourcesPath.absolute());
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// this is used as a bit mask, not a boolean
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context.bundleImages[file.bundle.path][relativePath] = 1;
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});
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}
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}
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var images = context.bundleImages[file.bundle.path];
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var referencedFiles = {},
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importedFiles = {};
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CPLog.debug("Processing " + file.fragments.length + " fragments in " + context.relativeToRootPath(file.path));
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for (var i = 0; i < file.fragments.length; i++)
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{
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var fragment = file.fragments[i];
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if (fragment.type & FRAGMENT_CODE)
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{
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var lexer = new objj_lexer(fragment.info, NULL);
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var token;
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while (token = lexer.skip_whitespace())
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{
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if (context.dependencies.hasOwnProperty(token))
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{
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var files = context.dependencies[token];
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for (var j = 0; j < files.length; j++)
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{
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// don't record references to self
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if (files[j] != file.path)
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{
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if (!referencedFiles[files[j]])
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referencedFiles[files[j]] = {};
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referencedFiles[files[j]][token] = true;
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}
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}
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}
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var matches = token.match(new RegExp("^['\"](.*)['\"]$"));
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if (matches && images && images[matches[1]])
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images[matches[1]] = (images[matches[1]] | 2);
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}
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}
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else if (fragment.type & FRAGMENT_FILE)
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{
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if (ignoreImports)
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{
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fragment.conditionallyIgnore = true;
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}
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else
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{
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var importedFile = findImportInObjjFiles(context.scope, fragment);
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if (importedFile)
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{
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// should never import self, but just in case?
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if (importedFile != file.path)
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importedFiles[importedFile] = true;
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else
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CPLog.error("Ignoring self import (why are you importing yourself?!): " + context.relativeToRootPath(file.path));
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}
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else
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CPLog.error("Couldn't find file for import " + fragment.info + " ("+fragment.type+")");
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}
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}
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}
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// check each imported file
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for (var importedFile in importedFiles)
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{
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if (importedFile != file.path)
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{
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if (context.importCallback)
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context.importCallback(file.path, importedFile);
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if (context.scope.objj_files[importedFile])
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traverseDependencies(context, context.scope.objj_files[importedFile]);
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else
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CPLog.error("Missing imported file: " + importedFile);
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}
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}
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if (context.importedFiles)
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context.importedFiles[file.path] = importedFiles;
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// check each referenced file
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for (var referencedFile in referencedFiles)
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{
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if (referencedFile != file.path)
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{
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if (context.referenceCallback)
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context.referenceCallback(file.path, referencedFile, referencedFiles[referencedFile]);
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if (context.scope.objj_files.hasOwnProperty(referencedFile))
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traverseDependencies(context, context.scope.objj_files[referencedFile]);
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else
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CPLog.error("Missing referenced file: " + referencedFile);
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}
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}
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if (context.referencedFiles)
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context.referencedFiles[file.path] = referencedFiles;
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}
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function findImportInObjjFiles(scope, fragment)
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{
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var importPath = null;
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if (fragment.type & FRAGMENT_LOCAL)
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{
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var searchPath = fragment.info;
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//CPLog.trace("Looking for " + searchPath);
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//for (var i in scope.objj_files) CPLog.debug(" " + i);
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if (scope.objj_files[searchPath])
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{
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importPath = searchPath;
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}
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}
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else
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{
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var count = scope.OBJJ_INCLUDE_PATHS.length;
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while (count--)
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{
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var searchPath = scope.OBJJ_INCLUDE_PATHS[count].replace(new RegExp("\\/$"), "") + "/" + fragment.info;
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if (scope.objj_files[searchPath])
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{
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importPath = searchPath;
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break;
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}
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}
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}
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return importPath;
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}
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// given a fresh scope and the path to a root source file, determine which files define each global variable
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function findGlobalDefines(context, mainPath, evaledFragments)
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{
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var ignore = cloneProperties(context.scope, true);
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ignore['bundle'] = true;
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var dependencies = {};
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//scope.fragment_evaluate_file_original = scope.fragment_evaluate_file;
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//scope.fragment_evaluate_file = function(aFragment)
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//{
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// //CPLog.trace("Loading "+aFragment.info);
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//
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// var result = scope.fragment_evaluate_file_original(aFragment);
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//
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// return result;
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//}
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// OVERRIDE fragment_evaluate_file
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var fragment_evaluate_file_original = context.scope.fragment_evaluate_file;
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context.scope.fragment_evaluate_file = function(aFragment) {
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return fragment_evaluate_file_original(aFragment);
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}
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// OVERRIDE fragment_evaluate_code
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var fragment_evaluate_code_original = context.scope.fragment_evaluate_code;
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context.scope.fragment_evaluate_code = function(aFragment) {
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CPLog.debug("Evaluating " + context.relativeToRootPath(aFragment.file.path) + " (" + context.relativeToRootPath(aFragment.bundle.path) + ")");
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var before = cloneProperties(context.scope);
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if (evaledFragments)
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{
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evaledFragments.push(aFragment);
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}
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var result = fragment_evaluate_code_original(aFragment);
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var definedGlobals = {};
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diff(before, context.scope, ignore, definedGlobals, definedGlobals, null);
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dependencies[aFragment.file.path] = definedGlobals;
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return result;
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}
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runWithScope(context, function(importName) {
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objj_import(importName, true, NULL);
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}, [mainPath]);
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return dependencies;
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}
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// takes a hash mapping from file names to hashes of global names defined in each file
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// globals = { fileName { globalName : true }}
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// returns a hash mapping from global names to arrays of file names in which those globals are defined
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// dependencies = { globalName : [fileName] }
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function coalesceGlobalDefines(globals)
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{
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var dependencies = {};
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for (var fileName in globals)
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{
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var fileGlobals = globals[fileName];
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for (var globalName in fileGlobals)
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{
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if (!dependencies[globalName])
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dependencies[globalName] = [];
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dependencies[globalName].push(fileName);
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}
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}
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return dependencies;
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}
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// create a new scope loaded with Narwhal and Objective-J
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function makeObjjScope(ctx, debug)
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{
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// init standard JS scope objects
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var scope = ctx.initStandardObjects();
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// set these properties required for Narwhal bootstrapping
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scope.NARWHAL_HOME = system.prefix;
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scope.NARWHAL_ENGINE_HOME = FILE.join(system.prefix, "engines", "rhino");
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// load the bootstrap.js for narwhal-rhino
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var bootstrapPath = FILE.join(scope.NARWHAL_ENGINE_HOME, "bootstrap.js");
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ctx.evaluateReader(scope,
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new Packages.java.io.FileReader(bootstrapPath),
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"bootstrap.js",
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1,
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null
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);
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// get the Objective-J module from this scope, return the window object.
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var OBJJ = scope.require("objective-j");
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addMockBrowserEnvironment(OBJJ.window);
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return OBJJ.window;
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}
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// add a mock browser environment to the provided scope
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function addMockBrowserEnvironment(scope)
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{
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// TODO: complete this. or use env.js?
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if (!scope.window)
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scope.window = scope;
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if (!scope.location)
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scope.location = {};
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if (!scope.location.href)
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scope.location.href = "";
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if (!scope.Element)
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scope.Element = function() {
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this.style = {}
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}
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if (!scope.document)
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scope.document = {
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createElement : function() {
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return new scope.Element();
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}
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}
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}
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// run a function within the given scope (func can be a function object if the source of the function is returned by toString() as it is by default)
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function runWithScope(context, func, args)
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{
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var functionInScope = context.ctx.compileFunction(context.scope, String(func), "<runWithScope>", 1, null);
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var result = functionInScope.apply(context.scope, args);
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context.scope.require('browser/timeout').serviceTimeouts();
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return result;
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}
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// does a shallow copy of an object. if onlyList is true, it sets each property to "true" instead of the actual value
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function cloneProperties(object, onlyList)
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{
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var results = {}
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for (var memeber in object)
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results[memeber] = onlyList ? true : object[memeber];
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return results;
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}
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function diff(objectA, objectB, ignore, added, changed, deleted)
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{
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for (var i in objectB)
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if (added && !ignore[i] && typeof objectA[i] == "undefined")
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added[i] = true;
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for (var i in objectB)
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if (changed && !ignore[i] && typeof objectA[i] != "undefined" && typeof objectB[i] != "undefined" && objectA[i] !== objectB[i])
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changed[i] = true;
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for (var i in objectA)
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if (deleted && !ignore[i] && typeof objectB[i] == "undefined")
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deleted[i] = true;
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}
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function allKeys(object)
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{
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var result = [];
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for (var i in object)
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result.push(i)
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return result.sort();
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}
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