Beispiel #1
0
 public override void OnVisitChildNodes(IVisitor visitor)
 {
     Condition.Visit(visitor);
     TrueStatement.Visit(visitor);
     if (FalseStatement != null)
     {
         FalseStatement.Visit(visitor);
     }
 }
Beispiel #2
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        public override void OnVisitChildNodes(IVisitor visitor)
        {
            foreach (var p in Parameters)
            {
                p.Visit(visitor);
            }

            // Visit the code first
            Code.Visit(visitor);
        }
Beispiel #3
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 public override void OnVisitChildNodes(IVisitor visitor)
 {
     if (Condition != null)
     {
         Condition.Visit(visitor);
     }
     if (Code != null)
     {
         Code.Visit(visitor);
     }
 }
Beispiel #4
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 public override void OnVisitChildNodes(IVisitor visitor)
 {
     Code.Visit(visitor);
     foreach (var cc in CatchClauses)
     {
         cc.Visit(visitor);
     }
     if (FinallyClause != null)
     {
         FinallyClause.Visit(visitor);
     }
 }
Beispiel #5
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 public override void OnVisitChildNodes(IVisitor visitor)
 {
     if (VariableDeclaration != null)
     {
         VariableDeclaration.Visit(visitor);
     }
     else
     {
         Iterator.Visit(visitor);
     }
     Collection.Visit(visitor);
     Code.Visit(visitor);
 }
Beispiel #6
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        public override void OnVisitChildNodes(IVisitor visitor)
        {
            if (Initialize != null)
            {
                Initialize.Visit(visitor);
            }

            if (Condition != null)
            {
                Condition.Visit(visitor);
            }

            if (Increment != null)
            {
                Increment.Visit(visitor);
            }

            Code.Visit(visitor);
        }
Beispiel #7
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 public override void OnVisitChildNodes(IVisitor visitor)
 {
     Condition.Visit(visitor);
     Code.Visit(visitor);
 }
Beispiel #8
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        // Compile all loaded script to a string
        public string CompileJavascriptToString()
        {
            // Create a symbol allocator
            SymbolAllocator SymbolAllocator = new SymbolAllocator(this);

            // Don't let the symbol allocator use any reserved words or common Javascript bits
            // We only go up to three letters - symbol allocation of more than 3 letters is
            // highly unlikely.
            // (based on list here: http://www.quackit.com/javascript/javascript_reserved_words.cfm)
            string[] words = new string[] { "if", "in", "do", "for", "new", "var", "int", "try", "NaN", "ref", "sun", "top" };
            foreach (var s in words)
            {
                SymbolAllocator.ClaimSymbol(s);
            }

            // Create a member allocator
            SymbolAllocator MemberAllocator = new SymbolAllocator(this);

            // Render
            RenderContext r = new RenderContext(this, SymbolAllocator, MemberAllocator);

            // Process all files
            bool bNeedSemicolon = false;

            foreach (var file in m_files)
            {
                Console.WriteLine("Processing {0}...", System.IO.Path.GetFileName(file.filename));

                // Create a tokenizer and parser
                Warnings             = new List <Warning>();
                WarningsEnabledStack = new Stack <bool>();
                Tokenizer t = new Tokenizer(this, file.content, file.filename, file.warnings);
                Parser    p = new Parser(t);

                // Create the global statement block
                var code = new ast.CodeBlock(null, TriState.No);

                // Parse the file into a namespace
                p.ParseStatements(code);

                // Ensure everything processed
                if (t.more)
                {
                    throw new CompileError("Unexpected end of file", t);
                }


                // Dump the abstract syntax tree
                if (DumpAST)
                {
                    code.Dump(0);
                }

                // Create the root symbol scope and build scopes for all
                // constained function scopes
                SymbolScope rootScope       = new SymbolScope(this, null, Accessibility.Public);
                SymbolScope rootPseudoScope = new SymbolScope(this, null, Accessibility.Public);
                code.Visit(new VisitorScopeBuilder(rootScope, rootPseudoScope));

                // Combine consecutive var declarations into a single one
                code.Visit(new VisitorCombineVarDecl(rootScope));

                // Find all variable declarations
                code.Visit(new VisitorSymbolDeclaration(rootScope, rootPseudoScope));

                // Do lint stuff
                code.Visit(new VisitorLint(rootScope, rootPseudoScope));

                // Try to eliminate const declarations
                if (DetectConsts && !NoObfuscate)
                {
                    code.Visit(new VisitorConstDetectorPass1(rootScope));
                    code.Visit(new VisitorConstDetectorPass2(rootScope));
                    code.Visit(new VisitorConstDetectorPass3(rootScope));
                }

                // Simplify expressions
                code.Visit(new VisitorSimplifyExpressions());

                // If obfuscation is allowed, find all in-scope symbols and then
                // count the frequency of their use.
                if (!NoObfuscate)
                {
                    code.Visit(new VisitorSymbolUsage(rootScope));
                }

                // Process all symbol scopes, applying default accessibility levels
                // and determining the "rank" of each symbol
                rootScope.Prepare();

                // Dump scopes to stdout
                if (DumpScopes)
                {
                    rootScope.Dump(0);
                }

                // Tell the global scope to claim all locally defined symbols
                // so they're not re-used (and therefore hidden) by the
                // symbol allocation
                rootScope.ClaimSymbols(SymbolAllocator);

                // Create a credit comment on the first file
                if (!NoCredit && file == m_files[0])
                {
                    int iInsertPos = 0;
                    while (iInsertPos < code.Content.Count && code.Content[iInsertPos].GetType() == typeof(ast.StatementComment))
                    {
                        iInsertPos++;
                    }
                    code.Content.Insert(iInsertPos, new ast.StatementComment(null, "// Minified by MiniME from toptensoftware.com"));
                }

                if (bNeedSemicolon)
                {
                    r.Append(";");
                }

                // Render it
                r.EnterScope(rootScope);
                bNeedSemicolon = code.Render(r);
                r.LeaveScope();

                // Display warnings
                Warnings.Sort(delegate(Warning w1, Warning w2)
                {
                    int Compare = w1.Order.file.FileName.CompareTo(w2.Order.file.FileName);
                    if (Compare == 0)
                    {
                        Compare = w1.Order.position - w2.Order.position;
                    }
                    if (Compare == 0)
                    {
                        Compare = w1.OriginalOrder - w2.OriginalOrder;
                    }
                    return(Compare);
                });
                foreach (var w in Warnings)
                {
                    Console.WriteLine("{0}: {1}", w.Bookmark, w.Message);
                }
            }

            // return the final script
            string strResult = r.GetGeneratedOutput();

            return(strResult);
        }
Beispiel #9
0
        /// <summary>
        /// Parses all loaded scripts as javascript and compiles them to a string.
        /// </summary>
        /// <returns>A string containing the minified javascript.</returns>
        public string CompileJavascriptToString()
        {
            // Create a symbol allocator
            SymbolAllocator SymbolAllocator = new SymbolAllocator(this);

            // Don't let the symbol allocator use any reserved words or common Javascript bits
            // We only go up to three letters - symbol allocation of more than 3 letters is
            // highly unlikely.
            // (based on list here: http://www.quackit.com/javascript/javascript_reserved_words.cfm)
            string[] words = new string[] { "if", "in", "do", "for", "new", "var", "int", "try", "NaN", "ref", "sun", "top" };
            foreach (var s in words)
            {
                SymbolAllocator.ClaimSymbol(s);
            }

            // Create a member allocator
            SymbolAllocator MemberAllocator = new SymbolAllocator(this);

            // Render
            RenderContext r = new RenderContext(this, SymbolAllocator, MemberAllocator);

            // Process all files
            bool bNeedSemicolon = false;
            foreach (var file in m_files)
            {
                Console.WriteLine("Processing {0}...", System.IO.Path.GetFileName(file.filename));

                // Create a tokenizer and parser
                Warnings = new List<Warning>();
                WarningsEnabledStack = new Stack<bool>();
                Tokenizer t = new Tokenizer(this, file.content, file.filename, file.warnings);
                Parser p = new Parser(t);

                // Create the global statement block
                var code = new ast.CodeBlock(null, TriState.No);

                // Parse the file into a namespace
                p.ParseStatements(code);

                // Ensure everything processed
                if (t.more)
                {
                    throw new CompileError("Unexpected end of file", t);
                }

                // Dump the abstract syntax tree
                if (DumpAST)
                    code.Dump(0);

                // Create the root symbol scope and build scopes for all
                // constained function scopes
                SymbolScope rootScope = new SymbolScope(this, null, Accessibility.Public);
                SymbolScope rootPseudoScope = new SymbolScope(this, null, Accessibility.Public);
                code.Visit(new VisitorScopeBuilder(rootScope, rootPseudoScope));

                // Combine consecutive var declarations into a single one
                code.Visit(new VisitorCombineVarDecl(rootScope));

                // Find all variable declarations
                code.Visit(new VisitorSymbolDeclaration(rootScope, rootPseudoScope));

                // Do lint stuff
                code.Visit(new VisitorLint(rootScope, rootPseudoScope));

                // Try to eliminate const declarations
                if (DetectConsts && !NoObfuscate)
                {
                    code.Visit(new VisitorConstDetectorPass1(rootScope));
                    code.Visit(new VisitorConstDetectorPass2(rootScope));
                    code.Visit(new VisitorConstDetectorPass3(rootScope));
                }

                // Simplify expressions
                code.Visit(new VisitorSimplifyExpressions());

                // If obfuscation is allowed, find all in-scope symbols and then
                // count the frequency of their use.
                if (!NoObfuscate)
                {
                    code.Visit(new VisitorSymbolUsage(rootScope));
                }

                // Process all symbol scopes, applying default accessibility levels
                // and determining the "rank" of each symbol
                rootScope.Prepare();

                // Dump scopes to stdout
                if (DumpScopes)
                    rootScope.Dump(0);

                // Tell the global scope to claim all locally defined symbols
                // so they're not re-used (and therefore hidden) by the
                // symbol allocation
                rootScope.ClaimSymbols(SymbolAllocator);

                // Create a credit comment on the first file
                if (!NoCredit && file==m_files[0])
                {
                    int iInsertPos = 0;
                    while (iInsertPos < code.Content.Count && code.Content[iInsertPos].GetType() == typeof(ast.StatementComment))
                        iInsertPos++;
                    code.Content.Insert(iInsertPos, new ast.StatementComment(null, "// Minified by MiniME from toptensoftware.com"));
                }

                if (bNeedSemicolon)
                {
                    r.Append(";");
                }

                // Render it
                r.EnterScope(rootScope);
                bNeedSemicolon=code.Render(r);
                r.LeaveScope();

                // Display warnings
                Warnings.Sort(delegate(Warning w1, Warning w2)
                {
                    int Compare = w1.Order.file.FileName.CompareTo(w2.Order.file.FileName);
                    if (Compare == 0)
                        Compare = w1.Order.position - w2.Order.position;
                    if (Compare == 0)
                        Compare = w1.OriginalOrder - w2.OriginalOrder;
                    return Compare;
                });
                foreach (var w in Warnings)
                {
                    Console.WriteLine("{0}: {1}", w.Bookmark, w.Message);
                }

            }

            // return the final script
            string strResult = r.GetGeneratedOutput();
            return strResult;
        }
Beispiel #10
0
 public override void OnVisitChildNodes(IVisitor visitor)
 {
     Expression.Visit(visitor);
     Code.Visit(visitor);
 }