-//<Script type="text/javascript">
-
-Scope = imports['JSDOC/Scope.js'].Scope;
-
-/**
-* Scope stuff
-*
-* // FIXME - I need this to do next() without doccomments..
-*/
-
-ScopeParser = function(ts) {
- this.ts = ts; // {TokenStream}
- this.warnings = [];
- this.scopes = [];
- this.indexedScopes = {};
- this.timer = new Date() * 1;
- this.debug = false;
-}
-
-// list of keywords that should not be used in object literals.
-ScopeParser.idents = [
- "break",
- "case",
- "continue",
- "default",
- "delete",
- "do",
- "else",
- "export",
- "false",
- "for",
- "function",
- "if",
- "import",
- "in",
- "new",
- "null",
- "return",
- "switch",
- "this",
- "true",
- "typeof",
- "var",
- "void",
- "while",
- "with",
-
- "catch",
- "class",
- "const",
- "debugger",
- "enum",
- "extends",
- "finally",
- "super",
- "throw",
- "try",
-
- "abstract",
- "boolean",
- "byte",
- "char",
- "double",
- "final",
- "float",
- "goto",
- "implements",
- "instanceof",
- "int",
- "interface",
- "long",
- "native",
- "package",
- "private",
- "protected",
- "public",
- "short",
- "static",
- "synchronized",
- "throws",
- "transient",
- "include",
- "undefined"
-];
-
-
-ScopeParser.prototype = {
- timer: 0,
- timerPrint: function (str) {
- var ntime = new Date() * 1;
- var tdif = ntime -this.timer;
- this.timer = ntime;
- var pref = '';
- if (tdif > 100) { //slower ones..
- pref = '***';
- }
- println(pref+'['+tdif+']'+str);
-
- },
- warn: function(s) {
- //print('****************' + s);
- this.warnings.push(s);
- //println("WARNING:" + htmlescape(s) + "<BR>");
- },
- // defaults should not be initialized here =- otherwise they get duped on new, rather than initalized..
- warnings : false,
- ts : false,
- scopes : false,
- global : false,
- mode : "", //"BUILDING_SYMBOL_TREE",
- braceNesting : 0,
- indexedScopes : false,
- munge: true,
-
-
-
-
-
- buildSymbolTree : function()
- {
- //println("<PRE>");
-
- this.ts.rewind();
- this.braceNesting = 0;
- this.scopes = [];
-
-
-
-
- this.globalScope = new Scope(-1, false, -1, '');
- indexedScopes = { 0 : this.globalScope };
-
- this.mode = 'BUILDING_SYMBOL_TREE';
- this.parseScope(this.globalScope);
-
- //print("---------------END PASS 1 ---------------- ");
-
- },
- mungeSymboltree : function()
- {
-
- if (!this.munge) {
- return;
- }
-
- // One problem with obfuscation resides in the use of undeclared
- // and un-namespaced global symbols that are 3 characters or less
- // in length. Here is an example:
- //
- // var declaredGlobalVar;
- //
- // function declaredGlobalFn() {
- // var localvar;
- // localvar = abc; // abc is an undeclared global symbol
- // }
- //
- // In the example above, there is a slim chance that localvar may be
- // munged to 'abc', conflicting with the undeclared global symbol
- // abc, creating a potential bug. The following code detects such
- // global symbols. This must be done AFTER the entire file has been
- // parsed, and BEFORE munging the symbol tree. Note that declaring
- // extra symbols in the global scope won't hurt.
- //
- // Note: Since we go through all the tokens to do this, we also use
- // the opportunity to count how many times each identifier is used.
-
- this.ts.rewind();
- this.braceNesting = 0;
- this.scopes= [];
- this.mode = 'PASS2_SYMBOL_TREE';
-
- //println("MUNGING?");
-
- this.parseScope(this.globalScope);
- this.globalScope.munge();
- },
-
-
- log : function(str)
- {
- print (" ".substring(0, this.braceNesting*2) + str);
-
- //println("<B>LOG:</B>" + htmlescape(str) + "<BR/>\n");
- },
- logR : function(str)
- {
- //println("<B>LOG:</B>" + str + "<BR/>");
- },
-
-
-
-
-
-
- parseScope : function(scope) // parse a token stream..
- {
- //this.timerPrint("parseScope EnterScope");
- //this.log(">>> ENTER SCOPE" + this.scopes.length);
- var symbol;
- var token;
-
- var identifier;
-
- var expressionBraceNesting = this.braceNesting;
-
- var parensNesting = 0;
-
- var isObjectLitAr = [ false ];
- var isInObjectLitAr;
- this.scopes.push(scope);
- token = this.ts.lookTok(1);
- while (token) {
- // this.timerPrint("parseScope AFTER lookT: " + token.toString());
-
- //this.log(token.data);
- if (token.type == 'NAME') {
- // print('*' + token.data);
- }
- switch(token.type + '.' + token.name) {
- case "KEYW.VAR":
- case "KEYW.CONST": // not really relivant as it's only mozzy that does this.
-
- //this.log("parseScope GOT VAR/CONST : " + token.toString());
- while (true) {
- token = this.ts.nextTok();
- !this.debug|| print( token.toString());
-
- if (!token) { // can return false at EOF!
- break;
- }
- if (token.name == "VAR" || token.data == ',') { // kludge..
- continue;
- }
- //this.logR("parseScope GOT VAR : <B>" + token.toString() + "</B>");
- if (token.type !="NAME") {
- for(var i = Math.max(this.ts.cursor-10,0); i < this.ts.cursor+1; i++) {
- print(this.ts.tokens[i].toString());
- }
-
- print( "var without ident");
- Seed.quit()
- }
-
-
- if (this.mode == "BUILDING_SYMBOL_TREE") {
- identifier = scope.getIdentifier(token.data) ;
-
- if (identifier == false) {
- scope.declareIdentifier(token.data, token);
- } else {
- token.identifier = identifier;
- this.warn("(SCOPE) The variable " + token.data + ' (line:' + token.line + ") has already been declared in the same scope...");
- }
- }
-
- token = this.ts.nextTok();
- !this.debug|| print(token.toString());
- /*
- assert token.getType() == Token.SEMI ||
- token.getType() == Token.ASSIGN ||
- token.getType() == Token.COMMA ||
- token.getType() == Token.IN;
- */
- if (token.name == "IN") {
- break;
- } else {
- //var bn = this.braceNesting;
- this.parseExpression();
- //this.braceNesting = bn;
- //this.logR("parseScope DONE : <B>ParseExpression</B> - tok is:" + this.ts.lookT(0).toString());
-
- token = this.ts.lookTok(1);
- !this.debug|| print("AFTER EXP: " + token.toString());
- if (token.data == ';') {
- break;
- }
- }
- }
- break;
- case "KEYW.FUNCTION":
- //println("<i>"+token.data+"</i>");
- var bn = this.braceNesting;
- this.parseFunctionDeclaration();
- this.braceNesting = bn;
- break;
-
- case "PUNC.LEFT_CURLY": // {
- //println("<i>"+token.data+"</i>");
- isObjectLitAr.push(false);
- this.braceNesting++;
-
- //print(">>>>>> OBJLIT PUSH(false)" + this.braceNesting);
- break;
-
- case "PUNC.RIGHT_CURLY": // }
- //println("<i>"+token.data+"</i>");
- this.braceNesting--;
- isObjectLitAr.pop();
- //print(">>>>>> OBJLIT POP"+ this.braceNesting);
- //assert braceNesting >= scope.getBra ceNesting();
-
- if (this.braceNesting < expressionBraceNesting) {
- var ls = this.scopes.pop();
- ls.getUsedSymbols();
- // eat symbol if we are currently at {
- if (this.ts.look(0).data == '{') {
- this.ts.nextTok();
- }
-
- //print("<<<<<<<EXIT SCOPE" +this.scopes.length);
- return;
- }
- break;
-
- case "KEYW.WITH":
- //println("<i>"+token.data+"</i>");
- if (this.mode == "BUILDING_SYMBOL_TREE") {
- // Inside a 'with' block, it is impossible to figure out
- // statically whether a symbol is a local variable or an
- // object member. As a consequence, the only thing we can
- // do is turn the obfuscation off for the highest scope
- // containing the 'with' block.
- this.protectScopeFromObfuscation(scope);
- this.warn("Using 'with' is not recommended." + (this.munge ? " Moreover, using 'with' reduces the level of compression!" : ""), true);
- }
- break;
-
- case "KEYW.CATCH":
- //println("<i>"+token.data+"</i>");
- this.parseCatch();
- break;
- /*
- case Token.SPECIALCOMMENT:
- if (mode == BUILDING_SYMBOL_TREE) {
- protectScopeFromObfuscation(scope);
- this.warn("Using JScript conditional comments is not recommended." + (munge ? " Moreover, using JScript conditional comments reduces the level of compression." : ""), true);
- }
- break;
- */
-
- case "STRN.DOUBLE_QUOTE": // used for object lit detection..
- case "STRN.SINGLE_QUOTE":
- //println("<i>"+token.data+"</i>");
- if (this.ts.lookTok(-1).data == '{' && this.ts.lookTok(1).data == ':') {
- // then we are in an object lit.. -> we need to flag the brace as such...
- isObjectLitAr.pop();
- isObjectLitAr.push(true);
- //print(">>>>>> OBJLIT REPUSH(true)");
- }
- isInObjectLitAr = isObjectLitAr[isObjectLitAr.length-1];
-
- if (isInObjectLitAr && this.ts.lookTok(1).data == ':' &&
- ( this.ts.lookTok(-1).data == '{' || this.ts.lookTok(-1).data == ':' )) {
- // see if we can replace..
- // remove the quotes..
- // should do a bit more checking!!!! (what about wierd char's in the string..
- var str = token.data.substring(1,token.data.length-1);
- if (/^[a-z_]+$/i.test(str) && ScopeParser.idents.indexOf(str) < 0) {
- token.outData = str;
- }
-
-
-
- }
-
-
-
- break;
-
- case "NAME.NAME":
-
- //print("DEAL WITH NAME:");
- // got identifier..
-
- // look for { ** : <- indicates obj literal.. ** this could occur with numbers ..
- if ((this.ts.lookTok(-1).data == "{") && (this.ts.lookTok(1).data == ":")) {
- isObjectLitAr.pop();
- isObjectLitAr.push(true);
- //print(">>>>>> OBJLIT REPUSH(true)");
- //println("<i>"+token.data+"</i>");
- break;
- }
- // print("DEAL WITH obj lit:");
- isInObjectLitAr = isObjectLitAr[isObjectLitAr.length-1];
-
- if (isInObjectLitAr && (this.ts.lookTok(1).data == ":") && (this.ts.lookTok(-1).data == ",")) {
- // skip, it's an object lit key..
- //println("<i>"+token.data+"</i>");
- break;
- }
-
-
- // skip anyting with "." before it..!!
-
- if (this.ts.lookTok(-1).data == ".") {
- // skip, it's an object prop.
- //println("<i>"+token.data+"</i>");
- break;
- }
- symbol = token.data;
- if (this.mode == 'PASS2_SYMBOL_TREE') {
-
- //println("GOT IDENT: -2 : " + this.ts.lookT(-2).toString() + " <BR> ..... -1 : " + this.ts.lookT(-1).toString() + " <BR> ");
-
- //print ("MUNGE?" + symbol);
-
- //println("GOT IDENT: <B>" + symbol + "</B><BR/>");
-
- //println("GOT IDENT (2): <B>" + symbol + "</B><BR/>");
- identifier = this.getIdentifier(symbol, scope);
-
- if (identifier == false) {
-// BUG!find out where builtin is defined...
- if (symbol.length <= 3 && Scope.builtin.indexOf(symbol) < 0) {
- // Here, we found an undeclared and un-namespaced symbol that is
- // 3 characters or less in length. Declare it in the global scope.
- // We don't need to declare longer symbols since they won't cause
- // any conflict with other munged symbols.
- this.globalScope.declareIdentifier(symbol, token);
- this.warn("Found an undeclared symbol: " + symbol + ' (line:' + token.line + ')', true);
- }
-
- //println("GOT IDENT IGNORE(3): <B>" + symbol + "</B><BR/>");
- } else {
- token.identifier = identifier;
- identifier.refcount++;
- }
- }
-
- break;
- //println("<B>SID</B>");
- default:
- if (token.type != 'KEYW') {
- break;
- }
- // print("Check eval:");
-
- symbol = token.data;
-
- if (this.mode == 'BUILDING_SYMBOL_TREE') {
-
- if (symbol == "eval") {
- // look back one and see if we can find a comment!!!
- if (this.ts.look(-1).type == "COMM") {
- // look for eval:var:noreplace\n
- var _t = this;
- this.ts.look(-1).data.replace(/eval:var:([a-z_]+)/ig, function(m, a) {
-
- var hi = _t.getIdentifier(a, scope);
- // println("PROTECT "+a+" from munge" + (hi ? "FOUND" : "MISSING"));
- if (hi) {
- // println("PROTECT "+a+" from munge");
- hi.toMunge = false;
- }
-
- });
-
-
- } else {
-
-
- this.protectScopeFromObfuscation(scope);
- this.warn("Using 'eval' is not recommended. (use eval:var:noreplace in comments to optimize) " + (this.munge ? " Moreover, using 'eval' reduces the level of compression!" : ""), true);
- }
-
- }
-
- }
- break;
-
-
- } // end switch
-
-
- //this.timerPrint("parseScope TOK : " + token.toString());
- token = this.ts.nextTok();
- //if (this.ts.nextT()) break;
-
- }
- //print("<<<<<<<EXIT SCOPE ERR?" +this.scopes.length);
- },
-
-
- parseExpression : function() {
-
- // Parse the expression until we encounter a comma or a semi-colon
- // in the same brace nesting, bracket nesting and paren nesting.
- // Parse functions if any...
- //println("<i>EXP</i><BR/>");
- !this.debug || print("PARSE EXPR");
- var symbol;
- var token;
- var currentScope;
- var identifier;
-
- var expressionBraceNesting = this.braceNesting;
- var bracketNesting = 0;
- var parensNesting = 0;
- var isInObjectLitAr;
- var isObjectLitAr = [ false ];
- while (token = this.ts.lookTok()) {
-
-
-
- currentScope = this.scopes[this.scopes.length-1];
-
- //println("<i>"+token.data+"</i>");
- //this.log("EXP:" + token.data);
- switch (token.type) {
- case 'PUNC':
- switch(token.data) {
-
- case ';':
- case ',':
- if (this.braceNesting == expressionBraceNesting &&
- bracketNesting == 0 &&
- parensNesting == 0) {
-
- return;
- }
- break;
-
-
-
- case '{': //Token.LC:
- isObjectLitAr.push(false);
-
- this.braceNesting++;
- ///print(">>>>> EXP PUSH(false)"+this.braceNesting);
- break;
-
- case '}': //Token.RC:
- this.braceNesting--;
- isObjectLitAr.pop();
- //print(">>>>> EXP POP" + this.braceNesting);
- // assert braceNesting >= expressionBraceNesting;
- break;
-
- case '[': //Token.LB:
- bracketNesting++;
- break;
-
- case ']': //Token.RB:
- bracketNesting--;
- break;
-
- case '(': //Token.LP:
- parensNesting++;
- break;
-
- case ')': //Token.RP:
- parensNesting--;
- break;
- }
- break;
-
- case 'STRN': // used for object lit detection..
- if (this.ts.lookTok(-1).data == "{" && this.ts.lookTok(1).data == ":" ) {
- // then we are in an object lit.. -> we need to flag the brace as such...
- isObjectLitAr.pop();
- isObjectLitAr.push(true);
- //print(">>>>> EXP PUSH(true)");
- }
-
-
-
- isInObjectLitAr = isObjectLitAr[isObjectLitAr.length-1];
- if (isInObjectLitAr && this.ts.lookTok(1).data == ":" &&
- ( this.ts.lookTok(-1).data == "{" || this.ts.lookTok(-1).data == "," )) {
- // see if we can replace..
- // remove the quotes..
- var str = token.data.substring(1,token.data.length-1);
- if (/^[a-z_]+$/i.test(str) && ScopeParser.idents.indexOf(str) < 0) {
- token.outData = str;
- }
-
-
-
- }
-
- break;
-
-
-
- case 'NAME':
-
- symbol = token.data;
-
- if (this.ts.look(0).data == "{" && this.ts.lookTok(2).data == ":") {
- // then we are in an object lit.. -> we need to flag the brace as such...
- isObjectLitAr.pop();
- isObjectLitAr.push(true);
- //print(">>>>> EXP PUSH(true)");
- break;
- }
- isInObjectLitAr = isObjectLitAr[isObjectLitAr.length-1];
- if (isInObjectLitAr && this.ts.lookTok(0).data == "," && this.ts.lookTok(2).data == ":") {
- break;
- }
- //print(this.ts.lookTok(0).data);
- if (this.ts.lookTok(0).data == ".") {
- //skip '.'
- break;
- }
-
- if (this.mode == 'PASS2_SYMBOL_TREE') {
-
- identifier = this.getIdentifier(symbol, currentScope);
- //println("<B>??</B>");
- if (identifier == false) {
-
- if (symbol.length <= 3 && Scope.builtin.indexOf(symbol) < 0) {
- // Here, we found an undeclared and un-namespaced symbol that is
- // 3 characters or less in length. Declare it in the global scope.
- // We don't need to declare longer symbols since they won't cause
- // any conflict with other munged symbols.
- this.globalScope.declareIdentifier(symbol, token);
- this.warn("Found an undeclared symbol: " + symbol + ' (line:' + token.line + ')', true);
- } else {
- //println("undeclared")
- }
-
-
- } else {
- //println("<B>++</B>");
- token.identifier = identifier;
- identifier.refcount++;
- }
-
- }
- break;
-
-
-
-
- //println("<B>EID</B>");
- case 'KEYW':
-
- if (token.name == "FUNCTION") {
-
- this.parseFunctionDeclaration();
- break;
- }
-
-
-
- symbol = token.data;
- if (this.mode == 'BUILDING_SYMBOL_TREE') {
-
- if (symbol == "eval") {
- if (this.ts.look(-1).type == 'COMM') {
- // look for eval:var:noreplace\n
- var _t = this;
- this.ts.look(-1).data.replace(/eval:var:([a-z]+)/ig, function(m, a) {
- var hi = _t.getIdentifier(a, currentScope);
- //println("PROTECT "+a+" from munge" + (hi ? "FOUND" : "MISSING"));
- if (hi) {
- // println("PROTECT "+a+" from munge");
- hi.toMunge = false;
- }
-
-
- });
-
- } else {
- this.protectScopeFromObfuscation(currentScope);
- this.warn("Using 'eval' is not recommended." + (this.munge ? " Moreover, using 'eval' reduces the level of compression!" : ""), true);
- }
-
-
- }
- break;
- }
-
- }
- if (!this.ts.nextTok()) break;
- }
- },
-
-
- parseCatch : function() {
-
- var symbol;
- var token;
- var currentScope;
- var identifier;
-
- //token = getToken(-1);
- //assert token.getType() == Token.CATCH;
- token = this.ts.nextTok();
- //assert token.getType() == Token.LP; (
- token = this.ts.nextTok();
- //assert token.getType() == Token.NAME;
-
- symbol = token.data;
- currentScope = this.scopes[this.scopes.length-1];
-
- if (this.mode == 'BUILDING_SYMBOL_TREE') {
- // We must declare the exception identifier in the containing function
- // scope to avoid errors related to the obfuscation process. No need to
- // display a warning if the symbol was already declared here...
- currentScope.declareIdentifier(symbol, token);
- } else {
- //?? why inc the refcount?? - that should be set when building the tree???
- identifier = this.getIdentifier(symbol, currentScope);
- identifier.refcount++;
- }
-
- token = this.ts.nextTok();
- //assert token.getType() == Token.RP; // )
- },
-
- parseFunctionDeclaration : function()
- {
- // print("PARSE FUNCTION");
- var symbol;
- var token;
- var currentScope = false;
- var fnScope = false;
- var identifier;
- //this.logR("<B>PARSING FUNCTION</B>");
- currentScope = this.scopes[this.scopes.length-1];
-
- token = this.ts.nextTok();
- if (token.type == "NAME") {
- if (this.mode == 'BUILDING_SYMBOL_TREE') {
- // Get the name of the function and declare it in the current scope.
- symbol = token.data;
- if (currentScope.getIdentifier(symbol) != false) {
- this.warn("The function " + symbol + " has already been declared in the same scope...", true);
- }
- currentScope.declareIdentifier(symbol,token);
- }
- token = this.ts.nextTok();
- }
-
- //assert token.getType() == Token.LP;
- if (this.mode == 'BUILDING_SYMBOL_TREE') {
- fnScope = new Scope(this.braceNesting, currentScope, token.n, '');
-
- //println("STORING SCOPE" + this.ts.cursor);
-
- this.indexedScopes[this.ts.cursor] = fnScope;
-
- } else {
- //qln("FETCHING SCOPE" + this.ts.cursor);
- fnScope = this.indexedScopes[this.ts.cursor];
-
- }
-
- // Parse function arguments.
- var argpos = 0;
- while (this.ts.lookTok().data != ')') { //(token = consumeToken()).getType() != Token.RP) {
- token = this.ts.nextTok();
- // print ("FUNC ARGS: " + token.toString())
- //assert token.getType() == Token.NAME ||
- // token.getType() == Token.COMMA;
- if (token.type == 'NAME' && this.mode == 'BUILDING_SYMBOL_TREE') {
- symbol = token.data;
- identifier = fnScope.declareIdentifier(symbol,token);
- if (symbol == "$super" && argpos == 0) {
- // Exception for Prototype 1.6...
- identifier.preventMunging();
- }
- argpos++;
- }
- }
-
- token = this.ts.nextTok();
- // assert token.getType() == Token.LC;
- this.braceNesting++;
-
- token = this.ts.nextTok();
- if (token.type == "STRN" && this.ts.lookTok(1).data == ';') {
- /*
-
- NOT SUPPORTED YET!?!!?!
-
- // This is a hint. Hints are empty statements that look like
- // "localvar1:nomunge, localvar2:nomunge"; They allow developers
- // to prevent specific symbols from getting obfuscated (some heretic
- // implementations, such as Prototype 1.6, require specific variable
- // names, such as $super for example, in order to work appropriately.
- // Note: right now, only "nomunge" is supported in the right hand side
- // of a hint. However, in the future, the right hand side may contain
- // other values.
- consumeToken();
- String hints = token.getValue();
- // Remove the leading and trailing quotes...
- hints = hints.substring(1, hints.length() - 1).trim();
- StringTokenizer st1 = new StringTokenizer(hints, ",");
- while (st1.hasMoreTokens()) {
- String hint = st1.nextToken();
- int idx = hint.indexOf(':');
- if (idx <= 0 || idx >= hint.length() - 1) {
- if (mode == BUILDING_SYMBOL_TREE) {
- // No need to report the error twice, hence the test...
- this.warn("Invalid hint syntax: " + hint, true);
- }
- break;
- }
- String variableName = hint.substring(0, idx).trim();
- String variableType = hint.substring(idx + 1).trim();
- if (mode == BUILDING_SYMBOL_TREE) {
- fnScope.addHint(variableName, variableType);
- } else if (mode == CHECKING_SYMBOL_TREE) {
- identifier = fnScope.getIdentifier(variableName);
- if (identifier != null) {
- if (variableType.equals("nomunge")) {
- identifier.preventMunging();
- } else {
- this.warn("Unsupported hint value: " + hint, true);
- }
- } else {
- this.warn("Hint refers to an unknown identifier: " + hint, true);
- }
- }
- }
- */
- }
-
- this.parseScope(fnScope);
- // now pop it off the stack!!!
-
-
-
- },
-
- protectScopeFromObfuscation : function(scope) {
- //assert scope != null;
-
- if (scope == this.globalScope) {
- // The global scope does not get obfuscated,
- // so we don't need to worry about it...
- return;
- }
-
- // Find the highest local scope containing the specified scope.
- while (scope && scope.parent != this.globalScope) {
- scope = scope.parent;
- }
-
- //assert scope.getParentScope() == globalScope;
- scope.preventMunging();
- },
-
- getIdentifier: function(symbol, scope) {
- var identifier;
- while (scope != false) {
- identifier = scope.getIdentifier(symbol);
- //println("ScopeParser.getIdentgetUsedSymbols("+symbol+")=" + scope.getUsedSymbols().join(','));
- if (identifier) {
- return identifier;
- }
- scope = scope.parent;
- }
- return false;
- }
-};
\ No newline at end of file
projects / gnome.introspection-doc-generator / commitdiff