//<Script type="text/javascript">
-Scope = imports['JSDOC/Scope.js'].Scope;
-
+Scope = imports.Scope.Scope;
+TokenStream = imports.TokenStream.TokenStream;
/**
* Scope stuff
*
* // FIXME - I need this to do next() without doccomments..
+*
+*
+*
+* Need to make this alot simpler...
+*
+* so debugging is possible.
+*
+*
+* at present it just runs along the stream and finds stuff then calls parseExpr .. etc,,
+*
+*
+* It would be better to parse blocks of code rather than the whole stream..
+*
+*
+*
+*
+*
*/
ScopeParser = function(ts) {
//println("<B>LOG:</B>" + str + "<BR/>");
},
+
- dumpLine : false,
- dumpToken: function (tok, scope, brace) {
- if (this.dumpLine == false) {
- this.dumpLine = {
- str : tok.data + ' ',
- scope : scope.length,
- brace : brace
- }
- return;
- }
-
- if (this.dumpLine.scope == scope.length && this.dumpLine.brace == brace) {
- this.dumpLine.str += tok.data + ' ';
- if (this.dumpLine.str.length > 80 || tok.data ==';') {
-
- print(
- // (new Array(this.dumpLine.scope)).join(" ") + '|' +
- (new Array(this.dumpLine.brace+1)).join(" ") + this.dumpLine.str);
- this.dumpLine.str = '';
- }
- return;
- }
-
- print(
- // (new Array(this.dumpLine.scope)).join(" ") + '|' +
- (new Array(this.dumpLine.brace+1)).join(" ") + this.dumpLine.str);
-
-
- this.dumpLine = {
- str : tok.data + ' ',
- scope : scope.length,
- brace : brace
- }
-
- },
-
parseScope : function(scope) // parse a token stream..
var isObjectLitAr = [ false ];
var isInObjectLitAr;
- this.scopes.push(scope);
+ thisScope = scope;
+ if (thisScope) {
+ this.scopes.push(scope);
+ } else {
+ thisScope = this.scopes[this.scopes.length-1]
+ }
- var scopeIndent = '';
- this.scopes.forEach(function() {
- scopeIndent += ' ';
- });
- print(scopeIndent + ">> ENTER SCOPE");
+ //var scopeIndent = '';
+ //this.scopes.forEach(function() {
+ // scopeIndent += ' ';
+ //});
+ print(">> ENTER SCOPE");
switch(token.type + '.' + token.name) {
case "KEYW.VAR":
case "KEYW.CONST": // not really relivant as it's only mozzy that does this.
-
+ print('SCOPE-VAR:' + token.toString());
+ var vstart = this.ts.cursor +1;
//this.log("parseScope GOT VAR/CONST : " + token.toString());
while (true) {
token = this.ts.nextTok();
- !this.debug|| print( token.toString());
-
+ //!this.debug|| print( token.toString());
+ print('SCOPE-VAR-VAL:' + token.toString());
if (!token) { // can return false at EOF!
break;
}
continue;
}
//this.logR("parseScope GOT VAR : <B>" + token.toString() + "</B>");
- if (token.type !="NAME") {
+ 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());
}
if (this.mode == "BUILDING_SYMBOL_TREE") {
- identifier = scope.getIdentifier(token.data) ;
+ identifier = thisScope.getIdentifier(token.data) ;
if (identifier == false) {
- scope.declareIdentifier(token.data, token);
+ thisScope.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...");
}
}
}
+
+ //print("VAR:")
+ //this.ts.dump(vstart , this.ts.cursor);
+
break;
case "KEYW.FUNCTION":
+ if (this.mode == 'BUILDING_SYMBOL_TREE')
+ print('SCOPE-FUNC:' + JSON.stringify(token,null,4));
//println("<i>"+token.data+"</i>");
var bn = this.braceNesting;
this.parseFunctionDeclaration();
break;
case "PUNC.LEFT_CURLY": // {
+ case "PUNC.LEFT_PAREN": // (
+ print('SCOPE-CURLY/PAREN:' + token.toString());
//println("<i>"+token.data+"</i>");
- isObjectLitAr.push(false);
- this.braceNesting++;
+ var curTS = this.ts;
+ if (token.props) {
+
+ for (var prop in token.props) {
+
+
+ // print('SCOPE-PROPS:' + JSON.stringify(token.props[prop],null,4));
+ if (token.props[prop].val[0].data == 'function') {
+ // parse a function..
+ this.ts = new TokenStream(token.props[prop].val);
+ this.ts.nextTok();
+ this.parseFunctionDeclaration();
+
+ continue;
+ }
+ // key value..
+
+ this.ts = new TokenStream(token.props[prop].val);
+ this.parseScope(false);
+
+ }
+ this.ts = curTS;
+
+ // it's an object literal..
+ // the values could be replaced..
+ break;
+ }
+
+
+ var _this = this;
+ token.items.forEach(function(expr) {
+ _this.ts = new TokenStream(expr);
+ _this.parseExpression()
+ });
+ this.ts = curTS;
+ //print("NOT PROPS"); Seed.quit();
+
+ //isObjectLitAr.push(false);
+ //this.braceNesting++;
//print(">>>>>> OBJLIT PUSH(false)" + this.braceNesting);
break;
case "PUNC.RIGHT_CURLY": // }
+ print("<< EXIT SCOPE");
+ return;
+ /*
//println("<i>"+token.data+"</i>");
this.braceNesting--;
isObjectLitAr.pop();
return;
}
break;
-
+*/
case "KEYW.WITH":
+ print('SCOPE-WITH:' + token.toString());
//println("<i>"+token.data+"</i>");
if (this.mode == "BUILDING_SYMBOL_TREE") {
// Inside a 'with' block, it is impossible to figure out
// 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.protectScopeFromObfuscation(thisScope);
this.warn("Using 'with' is not recommended." + (this.munge ? " Moreover, using 'with' reduces the level of compression!" : ""), true);
}
break;
case "KEYW.CATCH":
+ print('SCOPE-CATCH:' + token.toString());
//println("<i>"+token.data+"</i>");
this.parseCatch();
break;
case "STRN.DOUBLE_QUOTE": // used for object lit detection..
case "STRN.SINGLE_QUOTE":
+ print('SCOPE-STRING:' + token.toString());
//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();
break;
case "NAME.NAME":
-
+ print('SCOPE-NAME:' + token.toString());
//print("DEAL WITH NAME:");
// got identifier..
//println("<i>"+token.data+"</i>");
break;
}
+ //print("SYMBOL: " + token.toString());
+
symbol = token.data;
if (this.mode == 'PASS2_SYMBOL_TREE') {
//println("GOT IDENT: <B>" + symbol + "</B><BR/>");
//println("GOT IDENT (2): <B>" + symbol + "</B><BR/>");
- identifier = this.getIdentifier(symbol, scope);
+ identifier = this.getIdentifier(symbol, thisScope);
if (identifier == false) {
// BUG!find out where builtin is defined...
if (token.type != 'KEYW') {
break;
}
+ print('SCOPE-KEYW:' + token.toString());
// print("Check eval:");
symbol = token.data;
var _t = this;
this.ts.look(-1).data.replace(/eval:var:([a-z_]+)/ig, function(m, a) {
- var hi = _t.getIdentifier(a, scope);
+ var hi = _t.getIdentifier(a, thisScope);
// println("PROTECT "+a+" from munge" + (hi ? "FOUND" : "MISSING"));
if (hi) {
// println("PROTECT "+a+" from munge");
} else {
- this.protectScopeFromObfuscation(scope);
+ this.protectScopeFromObfuscation(thisScope);
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);
}
//if (this.ts.nextT()) break;
}
+ print("<<< EXIT SCOPE");
//print("<<<<<<<EXIT SCOPE ERR?" +this.scopes.length);
},
currentScope = this.scopes[this.scopes.length-1];
- var scopeIndent = '';
- this.scopes.forEach(function() {
- scopeIndent += ' ';
- });
- print(scopeIndent + ">> ENTER EXPRESSION" + this.expN);
- while (token = this.ts.lookTok()) {
+
+ //print(scopeIndent + ">> ENTER EXPRESSION" + this.expN);
+ while (token = this.ts.nextTok()) {
-
+
/*
// moved out of loop?
*/
//this.dumpToken(token, this.scopes, this.braceNesting );
- print('EXPRN:' + token.toString());
+ print('EXP' + token.toString());
//println("<i>"+token.data+"</i>");
//this.log("EXP:" + token.data);
switch (token.type) {
case 'PUNC':
+ print("EXPR-PUNC:" + token.toString());
+
switch(token.data) {
case ';':
+ print("<< EXIT EXPRESSION");
+ break;
+
case ',':
- if (this.braceNesting == expressionBraceNesting &&
- bracketNesting == 0 &&
- parensNesting == 0) {
- print(scopeIndent + "<< EXIT EXPRESSION");
- this.expN--;
- return;
- }
+
break;
-
+ case '(': //Token.LP:
case '{': //Token.LC:
- isObjectLitAr.push(false);
+ case '[': //Token.LB:
+ print('SCOPE-CURLY/PAREN/BRACE:' + token.toString());
+ //println("<i>"+token.data+"</i>");
+ var curTS = this.ts;
+ if (token.props) {
+
+ for (var prop in token.props) {
+ if (token.props[prop].val.data == 'function') {
+ // parse a function..
+ this.parseFunctProp(token.props[prop]);
+ continue;
+ }
+ // key value..
+
+ this.ts = new TokenStream(token.props[prop].val);
+ this.parseScope(currentScope);
+
+ }
+ this.ts = curTS;
+
+ // it's an object literal..
+ // the values could be replaced..
+ break;
+ }
+
- this.braceNesting++;
+ var _this = this;
+ token.items.forEach(function(expr) {
+ _this.ts = new TokenStream(expr);
+ _this.parseExpression()
+ });
+ this.ts = curTS;
+
+
+
///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.RP:
case ']': //Token.RB:
- bracketNesting--;
- break;
-
- case '(': //Token.LP:
+ case '}': //Token.RB:
+ print("<< EXIT EXPRESSION");
+ return;
+
+
+
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)");
- }
-
-
+ if (this.mode == 'BUILDING_SYMBOL_TREE')
+ print("EXPR-STR:" + JSON.stringify(token, null, 4));
+
- 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':
-
+ if (this.mode == 'BUILDING_SYMBOL_TREE') {
+
+ print("EXPR-NAME:" + JSON.stringify(token, null, 4));
+ } else {
+ print("EXPR-NAME:" + token.toString());
+ }
symbol = token.data;
//print("in NAME = " + token.toString());
//print("in NAME 0: " + this.ts.look(0).toString());
//print("in NAME 2: " + this.ts.lookTok(2).toString());
- 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];
- //print ("isInObjectLitAr : " + isInObjectLitAr + ' ' + token.toString());
- if (isInObjectLitAr && this.ts.lookTok(0).data == "," && this.ts.lookTok(2).data == ":") {
- break;
- }
//print(this.ts.lookTok(0).data);
+ // prefixed with '.'
if (this.ts.lookTok(0).data == ".") {
//skip '.'
break;
}
- if (this.mode == 'PASS2_SYMBOL_TREE') {
+
+ if (this.mode == 'PASS2_SYMBOL_TREE') {
identifier = this.getIdentifier(symbol, currentScope);
//println("<B>??</B>");
this.globalScope.declareIdentifier(symbol, token);
this.warn("Found an undeclared symbol: " + symbol + ' (line:' + token.line + ')', true);
} else {
- //println("undeclared")
+ print("undeclared:" + token.toString())
}
//println("<B>EID</B>");
- case 'KEYW':
-
+ case 'KEYW':
+ if (this.mode == 'BUILDING_SYMBOL_TREE')
+ print("EXPR-KEYW:" + JSON.stringify(token, null, 4));
if (token.name == "FUNCTION") {
this.parseFunctionDeclaration();
}
break;
}
-
+ default:
+ if (this.mode == 'BUILDING_SYMBOL_TREE')
+ print("EXPR-SKIP:" + JSON.stringify(token, null, 4));
+ break;
}
- if (!this.ts.nextTok()) break;
+
}
- print(scopeIndent + "<< EXIT EXPRESSION");
+ print("<< EXIT EXPRESSION");
this.expN--;
},
parseFunctionDeclaration : function()
{
- print("PARSE FUNCTION");
+ //print("PARSE FUNCTION");
var symbol;
var token;
var currentScope = false;
fnScope = this.indexedScopes[this.ts.cursor];
}
-
+ if (this.mode == 'BUILDING_SYMBOL_TREE')
+ print('FUNC-PARSE:' + JSON.stringify(token,null,4));
// 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())
+ var args = token.items;
+ for (var argpos =0; argpos < args.length; argpos++) {
+
+ token = args[argpos][0];
+ print ("FUNC ARGS: " + token.toString())
//assert token.getType() == Token.NAME ||
// token.getType() == Token.COMMA;
if (token.type == 'NAME' && this.mode == 'BUILDING_SYMBOL_TREE') {
// Exception for Prototype 1.6...
identifier.preventMunging();
}
- argpos++;
+ //argpos++;
}
}
-
+
token = this.ts.nextTok();
- print(token.toString());
+ //print('FUNC-BODY:' + JSON.stringify(token.items,null,4));
+ //Seed.quit();
+ //print(token.toString());
// assert token.getType() == Token.LC;
- this.braceNesting++;
-
- token = this.ts.nextTok();
- print(token.toString());
- if (token.type == "STRN" && this.ts.lookTok(1).data == ';') {
- /*
-
- NOT SUPPORTED YET!?!!?!
+ //this.braceNesting++;
+
+ //token = this.ts.nextTok();
+ //print(token.toString());
+ var outTS = this.ts;
+ var _this = this;
+ token.items.forEach(function(tar) {
+ _this.ts = new TokenStream(tar);
+ _this.parseScope(fnScope);
- // 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);
+ });
+
+ //print(JSON.stringify(this.ts,null,4));
+ //this.parseScope(fnScope);
+ this.ts = outTS;
// now pop it off the stack!!!
- this.braceNesting = b4braceNesting;
- print("ENDFN -1: " + this.ts.lookTok(-1).toString());
- print("ENDFN 0: " + this.ts.lookTok(0).toString());
- print("ENDFN 1: " + this.ts.lookTok(1).toString());
+ //this.braceNesting = b4braceNesting;
+ //print("ENDFN -1: " + this.ts.lookTok(-1).toString());
+ //print("ENDFN 0: " + this.ts.lookTok(0).toString());
+ //print("ENDFN 1: " + this.ts.lookTok(1).toString());
},
protectScopeFromObfuscation : function(scope) {