X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/63b4c5a87f72580a85b2555c251490c1eb30021a..697d6fd2b2bf66a1f0bf1f28de0ced96fc14cbfc:/Parser.hpp?ds=inline

diff --git a/Parser.hpp b/Parser.hpp
index e0ed1f1..63aa17a 100644
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -1,94 +1,1597 @@
+/* Cycript - Remote Execution Server and Disassembler
+ * Copyright (C) 2009  Jay Freeman (saurik)
+*/
+
+/* Modified BSD License {{{ */
+/*
+ *        Redistribution and use in source and binary
+ * forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the
+ *    above copyright notice, this list of conditions
+ *    and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the
+ *    above copyright notice, this list of conditions
+ *    and the following disclaimer in the documentation
+ *    and/or other materials provided with the
+ *    distribution.
+ * 3. The name of the author may not be used to endorse
+ *    or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/* }}} */
+
 #ifndef CYPARSER_HPP
 #define CYPARSER_HPP
 
-class CYParser {
+// XXX: wtf is this here?!
+#define CYPA 16
+
+#include <iostream>
+
+#include <string>
+#include <vector>
+
+#include <cstdlib>
+
+#include "location.hh"
+#include "Pooling.hpp"
+
+template <typename Type_>
+struct CYNext {
+    Type_ *next_;
+
+    CYNext() :
+        next_(NULL)
+    {
+    }
+
+    CYNext(Type_ *next) :
+        next_(next)
+    {
+    }
+
+    void SetNext(Type_ *next) {
+        next_ = next;
+    }
+};
+
+struct CYThing {
+    virtual void Output(struct CYOutput &out) const = 0;
+};
+
+struct CYOutput {
+    std::ostream &out_;
+    bool pretty_;
+    unsigned indent_;
+
+    enum {
+        NoMode,
+        NoLetter,
+        NoPlus,
+        NoHyphen,
+        Terminated
+    } mode_;
+
+    CYOutput(std::ostream &out) :
+        out_(out),
+        pretty_(false),
+        indent_(0),
+        mode_(NoMode)
+    {
+    }
+
+    void Check(char value);
+    void Terminate();
+
+    CYOutput &operator <<(char rhs);
+    CYOutput &operator <<(const char *rhs);
+
+    _finline CYOutput &operator <<(const CYThing *rhs) {
+        if (rhs != NULL)
+            rhs->Output(*this);
+        return *this;
+    }
+
+    _finline CYOutput &operator <<(const CYThing &rhs) {
+        rhs.Output(*this);
+        return *this;
+    }
+};
+
+struct CYPropertyName {
+    virtual void PropertyName(CYOutput &out) const = 0;
+};
+
+struct CYExpression;
+
+enum CYNeeded {
+    CYNever     = -1,
+    CYSometimes =  0,
+    CYAlways    =  1,
 };
 
-struct CYExpression {
+enum CYFlags {
+    CYNoFlags =      0,
+    CYNoBrace =      (1 << 0),
+    CYNoFunction =   (1 << 1),
+    CYNoIn =         (1 << 2),
+    CYNoCall =       (1 << 3),
+    CYNoRightHand =  (1 << 4),
+    CYNoDangle =     (1 << 5),
+    CYNoBF =         (CYNoBrace | CYNoFunction),
 };
 
-struct CYToken {
-    virtual const char *Text() const = 0;
+struct CYContext {
+    apr_pool_t *pool_;
+
+    CYContext(apr_pool_t *pool) :
+        pool_(pool)
+    {
+    }
+
+    template <typename Type_>
+    void Replace(Type_ *&value) {
+        if (value != NULL)
+            while (Type_ *replace = value->Replace(*this))
+                value = replace;
+    }
 };
 
-struct CYTokenLiteral :
-    CYExpression,
-    virtual CYToken
+struct CYStatement :
+    CYNext<CYStatement>
 {
+    void Single(CYOutput &out, CYFlags flags) const;
+    void Multiple(CYOutput &out, CYFlags flags = CYNoFlags) const;
+
+    CYStatement *ReplaceAll(CYContext &context);
+
+    virtual CYStatement *Replace(CYContext &context) = 0;
+
+  private:
+    virtual void Output(CYOutput &out, CYFlags flags) const = 0;
+};
+
+struct CYStatements {
+    CYStatement *first_;
+    CYStatement *last_;
+
+    CYStatements() :
+        first_(NULL),
+        last_(NULL)
+    {
+    }
+
+    operator CYStatement *() const {
+        return first_;
+    }
+
+    CYStatements &operator ->*(CYStatement *next) {
+        if (next != NULL)
+            if (first_ == NULL) {
+                first_ = next;
+                last_ = next;
+            } else for (;; last_ = last_->next_)
+                if (last_->next_ == NULL) {
+                    last_->next_ = next;
+                    last_ = next;
+                    break;
+                }
+        return *this;
+    }
+};
+
+struct CYClassName {
+    virtual CYExpression *ClassName(CYContext &context, bool object) = 0;
+    virtual void ClassName(CYOutput &out, bool object) const = 0;
 };
 
-struct CYTokenString :
-    CYTokenLiteral
+struct CYWord :
+    CYThing,
+    CYPropertyName,
+    CYClassName
 {
+    const char *word_;
+
+    CYWord(const char *word) :
+        word_(word)
+    {
+    }
+
+    const char *Value() const {
+        return word_;
+    }
+
+    virtual void Output(CYOutput &out) const;
+
+    virtual CYExpression *ClassName(CYContext &context, bool object);
+    virtual void ClassName(CYOutput &out, bool object) const;
+    virtual void PropertyName(CYOutput &out) const;
 };
 
-struct CYTokenNumber :
-    CYTokenLiteral
+_finline std::ostream &operator <<(std::ostream &lhs, const CYWord &rhs) {
+    return lhs << rhs.Value();
+}
+
+struct CYIdentifier :
+    CYWord
 {
+    CYIdentifier(const char *word) :
+        CYWord(word)
+    {
+    }
 };
 
-struct CYTokenWord :
-    virtual CYToken
+struct CYLabel :
+    CYStatement
 {
+    CYIdentifier *name_;
+    CYStatement *statement_;
+
+    CYLabel(CYIdentifier *name, CYStatement *statement) :
+        name_(name),
+        statement_(statement)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
-struct CYTokenIdentifier :
-    CYExpression,
-    CYTokenWord
+struct CYProgram :
+    CYThing
 {
-    const char *word_;
+    CYStatement *statements_;
 
-    virtual const char *Text() const {
-        return word_;
+    CYProgram(CYStatement *statements) :
+        statements_(statements)
+    {
     }
+
+    virtual void Replace(CYContext &context);
+
+    virtual void Output(CYOutput &out) const;
 };
 
-struct CYExpressionPrefix :
-    CYExpression
+struct CYBlock :
+    CYStatement,
+    CYThing
 {
-    CYExpression *rhs_;
+    CYStatement *statements_;
 
-    CYExpressionPrefix(CYExpression *rhs) :
-        rhs_(rhs)
+    CYBlock(CYStatement *statements) :
+        statements_(statements)
     {
     }
+
+    operator CYStatement *() const {
+        return statements_;
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+
+    virtual void Output(CYOutput &out) const;
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+enum CYState {
+    CYClear,
+    CYRestricted,
+    CYNewLine
+};
+
+class CYDriver {
+  public:
+    CYPool pool_;
+
+    CYState state_;
+    void *scanner_;
+
+    const char *data_;
+    size_t size_;
+    FILE *file_;
+
+    bool strict_;
+
+    enum Condition {
+        RegExpCondition,
+    };
+
+    std::string filename_;
+
+    struct Error {
+        bool warning_;
+        cy::location location_;
+        std::string message_;
+    };
+
+    typedef std::vector<Error> Errors;
+
+    CYProgram *program_;
+    Errors errors_;
+
+  private:
+    void ScannerInit();
+    void ScannerDestroy();
+
+  public:
+    CYDriver(const std::string &filename);
+    ~CYDriver();
+
+    void BeginCondition(Condition condition);
+
+    void Warning(const cy::location &location, const char *message);
+};
+
+struct CYForInitialiser {
+    virtual void For(CYOutput &out) const = 0;
+};
+
+struct CYForInInitialiser {
+    virtual void ForIn(CYOutput &out, CYFlags flags) const = 0;
+    virtual const char *ForEachIn() const = 0;
+    virtual CYExpression *ForEachIn(CYContext &out) = 0;
+};
+
+struct CYNumber;
+struct CYString;
+
+struct CYExpression :
+    CYNext<CYExpression>,
+    CYForInitialiser,
+    CYForInInitialiser,
+    CYClassName,
+    CYThing
+{
+    virtual unsigned Precedence() const = 0;
+
+    virtual bool RightHand() const {
+        return true;
+    }
+
+    virtual void For(CYOutput &out) const;
+    virtual void ForIn(CYOutput &out, CYFlags flags) const;
+
+    virtual const char *ForEachIn() const;
+    virtual CYExpression *ForEachIn(CYContext &out);
+
+    virtual void Output(CYOutput &out) const;
+    virtual void Output(CYOutput &out, CYFlags flags) const = 0;
+    void Output(CYOutput &out, unsigned precedence, CYFlags flags) const;
+
+    virtual CYExpression *ClassName(CYContext &context, bool object);
+    virtual void ClassName(CYOutput &out, bool object) const;
+
+    CYExpression *ReplaceAll(CYContext &context);
+
+    virtual CYExpression *Replace(CYContext &context) = 0;
+
+    virtual CYExpression *Primitive(CYContext &context) {
+        return this;
+    }
+
+    virtual CYNumber *Number(CYContext &context) {
+        return NULL;
+    }
+
+    virtual CYString *String(CYContext &context) {
+        return NULL;
+    }
+
+    virtual const char *Word() const {
+        return NULL;
+    }
 };
 
-struct CYExpressionInfix :
+#define CYAlphabetic(value) \
+    virtual bool Alphabetic() const { \
+        return value; \
+    }
+
+#define CYPrecedence(value) \
+    virtual unsigned Precedence() const { \
+        return value; \
+    }
+
+#define CYRightHand(value) \
+    virtual bool RightHand() const { \
+        return value; \
+    }
+
+struct CYCompound :
     CYExpression
 {
-    CYExpression *lhs_;
-    CYExpression *rhs_;
+    CYExpression *expressions_;
 
-    CYExpressionInfix(CYExpression *lhs, CYExpression *rhs) :
-        lhs_(lhs),
-        rhs_(rhs)
+    CYCompound(CYExpression *expressions) :
+        expressions_(expressions)
+    {
+    }
+
+    void AddPrev(CYExpression *expression) {
+        CYExpression *last(expression);
+        while (last->next_ != NULL)
+            last = last->next_;
+        last->SetNext(expressions_);
+        expressions_ = expression;
+    }
+
+    CYPrecedence(17)
+
+    virtual CYExpression *Replace(CYContext &context);
+    void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYFunctionParameter :
+    CYNext<CYFunctionParameter>,
+    CYThing
+{
+    CYIdentifier *name_;
+
+    CYFunctionParameter(CYIdentifier *name, CYFunctionParameter *next = NULL) :
+        CYNext<CYFunctionParameter>(next),
+        name_(name)
+    {
+    }
+
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYComprehension :
+    CYNext<CYComprehension>,
+    CYThing
+{
+    virtual const char *Name() const = 0;
+
+    virtual CYFunctionParameter *Parameter(CYContext &context) const = 0;
+    CYFunctionParameter *Parameters(CYContext &context) const;
+    virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const;
+    virtual void Output(CYOutput &out) const = 0;
+};
+
+struct CYForInComprehension :
+    CYComprehension
+{
+    CYIdentifier *name_;
+    CYExpression *set_;
+
+    CYForInComprehension(CYIdentifier *name, CYExpression *set) :
+        name_(name),
+        set_(set)
+    {
+    }
+
+    virtual const char *Name() const {
+        return name_->Value();
+    }
+
+    virtual CYFunctionParameter *Parameter(CYContext &context) const;
+    virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const;
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYForEachInComprehension :
+    CYComprehension
+{
+    CYIdentifier *name_;
+    CYExpression *set_;
+
+    CYForEachInComprehension(CYIdentifier *name, CYExpression *set) :
+        name_(name),
+        set_(set)
+    {
+    }
+
+    virtual const char *Name() const {
+        return name_->Value();
+    }
+
+    virtual CYFunctionParameter *Parameter(CYContext &context) const;
+    virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const;
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYIfComprehension :
+    CYComprehension
+{
+    CYExpression *test_;
+
+    CYIfComprehension(CYExpression *test) :
+        test_(test)
     {
     }
+
+    virtual const char *Name() const {
+        return NULL;
+    }
+
+    virtual CYFunctionParameter *Parameter(CYContext &context) const;
+    virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const;
+    virtual void Output(CYOutput &out) const;
 };
 
-struct CYExpressionPostfix :
+struct CYArrayComprehension :
     CYExpression
 {
-    CYExpression *lhs_;
+    CYExpression *expression_;
+    CYComprehension *comprehensions_;
 
-    CYExpressionPostfix(CYExpression *lhs) :
-        lhs_(lhs)
+    CYArrayComprehension(CYExpression *expression, CYComprehension *comprehensions) :
+        expression_(expression),
+        comprehensions_(comprehensions)
     {
     }
+
+    CYPrecedence(0)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
-struct CYExpressionAssignment :
+struct CYLiteral :
     CYExpression
 {
-    CYExpression *lhs_;
-    CYExpression *rhs_;
+    CYPrecedence(0)
+    CYRightHand(false)
+};
 
-    CYExpressionAssignment(CYExpression *lhs, CYExpression *rhs) :
-        lhs_(lhs),
-        rhs_(rhs)
+struct CYTrivial :
+    CYLiteral
+{
+    virtual CYExpression *Replace(CYContext &context);
+};
+
+struct CYMagic :
+    CYExpression
+{
+    CYPrecedence(0)
+    CYRightHand(false)
+};
+
+struct CYRange {
+    uint64_t lo_;
+    uint64_t hi_;
+
+    CYRange(uint64_t lo, uint64_t hi) :
+        lo_(lo), hi_(hi)
+    {
+    }
+
+    bool operator [](uint8_t value) const {
+        return !(value >> 7) && (value >> 6 ? hi_ : lo_) >> (value & 0x3f) & 0x1;
+    }
+
+    void operator()(uint8_t value) {
+        if (value >> 7)
+            return;
+        (value >> 6 ? hi_ : lo_) |= uint64_t(0x1) << (value & 0x3f);
+    }
+};
+
+extern CYRange DigitRange_;
+extern CYRange WordStartRange_;
+extern CYRange WordEndRange_;
+
+struct CYString :
+    CYTrivial,
+    CYPropertyName
+{
+    const char *value_;
+    size_t size_;
+
+    CYString() :
+        value_(NULL),
+        size_(0)
+    {
+    }
+
+    CYString(const char *value) :
+        value_(value),
+        size_(strlen(value))
+    {
+    }
+
+    CYString(const char *value, size_t size) :
+        value_(value),
+        size_(size)
+    {
+    }
+
+    CYString(const CYWord *word) :
+        value_(word->Value()),
+        size_(strlen(value_))
+    {
+    }
+
+    const char *Value() const {
+        return value_;
+    }
+
+    virtual const char *Word() const;
+
+    virtual CYNumber *Number(CYContext &context);
+    virtual CYString *String(CYContext &context);
+
+    virtual CYString *Concat(CYContext &out, CYString *rhs) const;
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+    virtual void PropertyName(CYOutput &out) const;
+};
+
+struct CYNumber :
+    CYTrivial,
+    CYPropertyName
+{
+    double value_;
+
+    CYNumber(double value) :
+        value_(value)
+    {
+    }
+
+    double Value() const {
+        return value_;
+    }
+
+    virtual CYNumber *Number(CYContext &context);
+    virtual CYString *String(CYContext &context);
+
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+    virtual void PropertyName(CYOutput &out) const;
+};
+
+struct CYRegEx :
+    CYTrivial
+{
+    const char *value_;
+
+    CYRegEx(const char *value) :
+        value_(value)
+    {
+    }
+
+    const char *Value() const {
+        return value_;
+    }
+
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYNull :
+    CYWord,
+    CYTrivial
+{
+    CYNull() :
+        CYWord("null")
+    {
+    }
+
+    virtual CYNumber *Number(CYContext &context);
+    virtual CYString *String(CYContext &context);
+
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYThis :
+    CYWord,
+    CYMagic
+{
+    CYThis() :
+        CYWord("this")
     {
     }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYBoolean :
+    CYTrivial
+{
+    virtual bool Value() const = 0;
+    virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
+struct CYFalse :
+    CYWord,
+    CYBoolean
+{
+    CYFalse() :
+        CYWord("false")
+    {
+    }
+
+    virtual bool Value() const {
+        return false;
+    }
+
+    virtual CYNumber *Number(CYContext &context);
+    virtual CYString *String(CYContext &context);
+};
+
+struct CYTrue :
+    CYWord,
+    CYBoolean
+{
+    CYTrue() :
+        CYWord("true")
+    {
+    }
+
+    virtual bool Value() const {
+        return true;
+    }
+
+    virtual CYNumber *Number(CYContext &context);
+    virtual CYString *String(CYContext &context);
+};
+
+struct CYVariable :
+    CYExpression
+{
+    CYIdentifier *name_;
+
+    CYVariable(CYIdentifier *name) :
+        name_(name)
+    {
+    }
+
+    CYPrecedence(0)
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYPrefix :
+    CYExpression
+{
+    CYExpression *rhs_;
+
+    CYPrefix(CYExpression *rhs) :
+        rhs_(rhs)
+    {
+    }
+
+    virtual bool Alphabetic() const = 0;
+    virtual const char *Operator() const = 0;
+
+    CYPrecedence(4)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYInfix :
+    CYExpression
+{
+    CYExpression *lhs_;
+    CYExpression *rhs_;
+
+    CYInfix(CYExpression *lhs, CYExpression *rhs) :
+        lhs_(lhs),
+        rhs_(rhs)
+    {
+    }
+
+    void SetLeft(CYExpression *lhs) {
+        lhs_ = lhs;
+    }
+
+    virtual bool Alphabetic() const = 0;
+    virtual const char *Operator() const = 0;
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYPostfix :
+    CYExpression
+{
+    CYExpression *lhs_;
+
+    CYPostfix(CYExpression *lhs) :
+        lhs_(lhs)
+    {
+    }
+
+    virtual const char *Operator() const = 0;
+
+    CYPrecedence(3)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYAssignment :
+    CYExpression
+{
+    CYExpression *lhs_;
+    CYExpression *rhs_;
+
+    CYAssignment(CYExpression *lhs, CYExpression *rhs) :
+        lhs_(lhs),
+        rhs_(rhs)
+    {
+    }
+
+    void SetLeft(CYExpression *lhs) {
+        lhs_ = lhs;
+    }
+
+    virtual const char *Operator() const = 0;
+
+    CYPrecedence(16)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYArgument :
+    CYNext<CYArgument>,
+    CYThing
+{
+    CYWord *name_;
+    CYExpression *value_;
+
+    CYArgument(CYExpression *value, CYArgument *next = NULL) :
+        CYNext<CYArgument>(next),
+        name_(NULL),
+        value_(value)
+    {
+    }
+
+    CYArgument(CYWord *name, CYExpression *value, CYArgument *next = NULL) :
+        CYNext<CYArgument>(next),
+        name_(name),
+        value_(value)
+    {
+    }
+
+    void Replace(CYContext &context);
+    void Output(CYOutput &out) const;
+};
+
+struct CYBlank :
+    public CYWord
+{
+    CYBlank() :
+        CYWord("")
+    {
+    }
+};
+
+struct CYClause :
+    CYThing,
+    CYNext<CYClause>
+{
+    CYExpression *case_;
+    CYStatement *statements_;
+
+    CYClause(CYExpression *_case, CYStatement *statements) :
+        case_(_case),
+        statements_(statements)
+    {
+    }
+
+    void Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYElement :
+    CYNext<CYElement>,
+    CYThing
+{
+    CYExpression *value_;
+
+    CYElement(CYExpression *value, CYElement *next) :
+        CYNext<CYElement>(next),
+        value_(value)
+    {
+    }
+
+    void Replace(CYContext &context);
+    void Output(CYOutput &out) const;
+};
+
+struct CYArray :
+    CYLiteral
+{
+    CYElement *elements_;
+
+    CYArray(CYElement *elements = NULL) :
+        elements_(elements)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYDeclaration :
+    CYForInInitialiser
+{
+    CYIdentifier *identifier_;
+    CYExpression *initialiser_;
+
+    CYDeclaration(CYIdentifier *identifier, CYExpression *initialiser) :
+        identifier_(identifier),
+        initialiser_(initialiser)
+    {
+    }
+
+    virtual void ForIn(CYOutput &out, CYFlags flags) const;
+
+    virtual const char *ForEachIn() const;
+    virtual CYExpression *ForEachIn(CYContext &out);
+
+    void Replace(CYContext &context);
+
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYDeclarations :
+    CYNext<CYDeclarations>,
+    CYForInitialiser,
+    CYThing
+{
+    CYDeclaration *declaration_;
+
+    CYDeclarations(CYDeclaration *declaration, CYDeclarations *next = NULL) :
+        CYNext<CYDeclarations>(next),
+        declaration_(declaration)
+    {
+    }
+
+    virtual void For(CYOutput &out) const;
+
+    void Replace(CYContext &context);
+
+    virtual void Output(CYOutput &out) const;
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYVar :
+    CYStatement
+{
+    CYDeclarations *declarations_;
+
+    CYVar(CYDeclarations *declarations) :
+        declarations_(declarations)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYLet :
+    CYStatement
+{
+    CYDeclarations *declarations_;
+    CYBlock code_;
+
+    CYLet(CYDeclarations *declarations, CYStatement *statements) :
+        declarations_(declarations),
+        code_(statements)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYFor :
+    CYStatement
+{
+    CYForInitialiser *initialiser_;
+    CYExpression *test_;
+    CYExpression *increment_;
+    CYStatement *code_;
+
+    CYFor(CYForInitialiser *initialiser, CYExpression *test, CYExpression *increment, CYStatement *code) :
+        initialiser_(initialiser),
+        test_(test),
+        increment_(increment),
+        code_(code)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYForIn :
+    CYStatement
+{
+    CYForInInitialiser *initialiser_;
+    CYExpression *set_;
+    CYStatement *code_;
+
+    CYForIn(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) :
+        initialiser_(initialiser),
+        set_(set),
+        code_(code)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYForEachIn :
+    CYStatement
+{
+    CYForInInitialiser *initialiser_;
+    CYExpression *set_;
+    CYStatement *code_;
+
+    CYForEachIn(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) :
+        initialiser_(initialiser),
+        set_(set),
+        code_(code)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYProperty :
+    CYNext<CYProperty>,
+    CYThing
+{
+    CYPropertyName *name_;
+    CYExpression *value_;
+
+    CYProperty(CYPropertyName *name, CYExpression *value, CYProperty *next = NULL) :
+        CYNext<CYProperty>(next),
+        name_(name),
+        value_(value)
+    {
+    }
+
+    void Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYObject :
+    CYLiteral
+{
+    CYProperty *properties_;
+
+    CYObject(CYProperty *properties) :
+        properties_(properties)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYCatch :
+    CYThing
+{
+    CYIdentifier *name_;
+    CYBlock code_;
+
+    CYCatch(CYIdentifier *name, CYStatement *statements) :
+        name_(name),
+        code_(statements)
+    {
+    }
+
+    void Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYMember :
+    CYExpression
+{
+    CYExpression *object_;
+    CYExpression *property_;
+
+    CYMember(CYExpression *object, CYExpression *property) :
+        object_(object),
+        property_(property)
+    {
+    }
+
+    void SetLeft(CYExpression *object) {
+        object_ = object;
+    }
+
+    void Replace_(CYContext &context);
+};
+
+struct CYDirectMember :
+    CYMember
+{
+    CYDirectMember(CYExpression *object, CYExpression *property) :
+        CYMember(object, property)
+    {
+    }
+
+    CYPrecedence(1)
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYIndirectMember :
+    CYMember
+{
+    CYIndirectMember(CYExpression *object, CYExpression *property) :
+        CYMember(object, property)
+    {
+    }
+
+    CYPrecedence(1)
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYNew :
+    CYExpression
+{
+    CYExpression *constructor_;
+    CYArgument *arguments_;
+
+    CYNew(CYExpression *constructor, CYArgument *arguments) :
+        constructor_(constructor),
+        arguments_(arguments)
+    {
+    }
+
+    virtual unsigned Precedence() const {
+        return arguments_ == NULL ? 2 : 1;
+    }
+
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYCall :
+    CYExpression
+{
+    CYExpression *function_;
+    CYArgument *arguments_;
+
+    CYCall(CYExpression *function, CYArgument *arguments = NULL) :
+        function_(function),
+        arguments_(arguments)
+    {
+    }
+
+    CYPrecedence(1)
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYIf :
+    CYStatement
+{
+    CYExpression *test_;
+    CYStatement *true_;
+    CYStatement *false_;
+
+    CYIf(CYExpression *test, CYStatement *_true, CYStatement *_false = NULL) :
+        test_(test),
+        true_(_true),
+        false_(_false)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYDoWhile :
+    CYStatement
+{
+    CYExpression *test_;
+    CYStatement *code_;
+
+    CYDoWhile(CYExpression *test, CYStatement *code) :
+        test_(test),
+        code_(code)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYWhile :
+    CYStatement
+{
+    CYExpression *test_;
+    CYStatement *code_;
+
+    CYWhile(CYExpression *test, CYStatement *code) :
+        test_(test),
+        code_(code)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYFunction {
+    CYIdentifier *name_;
+    CYFunctionParameter *parameters_;
+    CYBlock code_;
+
+    CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
+        name_(name),
+        parameters_(parameters),
+        code_(statements)
+    {
+    }
+
+    virtual void Replace_(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYFunctionExpression :
+    CYFunction,
+    CYExpression
+{
+    CYFunctionExpression(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
+        CYFunction(name, parameters, statements)
+    {
+    }
+
+    CYPrecedence(0)
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYFunctionStatement :
+    CYFunction,
+    CYStatement
+{
+    CYFunctionStatement(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
+        CYFunction(name, parameters, statements)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYExpress :
+    CYStatement
+{
+    CYExpression *expression_;
+
+    CYExpress(CYExpression *expression) :
+        expression_(expression)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYContinue :
+    CYStatement
+{
+    CYIdentifier *label_;
+
+    CYContinue(CYIdentifier *label) :
+        label_(label)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYBreak :
+    CYStatement
+{
+    CYIdentifier *label_;
+
+    CYBreak(CYIdentifier *label) :
+        label_(label)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYReturn :
+    CYStatement
+{
+    CYExpression *value_;
+
+    CYReturn(CYExpression *value) :
+        value_(value)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYEmpty :
+    CYStatement
+{
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYFinally :
+    CYThing
+{
+    CYBlock code_;
+
+    CYFinally(CYStatement *statements) :
+        code_(statements)
+    {
+    }
+
+    void Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTry :
+    CYStatement
+{
+    CYBlock code_;
+    CYCatch *catch_;
+    CYFinally *finally_;
+
+    CYTry(CYStatement *statements, CYCatch *_catch, CYFinally *finally) :
+        code_(statements),
+        catch_(_catch),
+        finally_(finally)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYThrow :
+    CYStatement
+{
+    CYExpression *value_;
+
+    CYThrow(CYExpression *value) :
+        value_(value)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYWith :
+    CYStatement
+{
+    CYExpression *scope_;
+    CYStatement *code_;
+
+    CYWith(CYExpression *scope, CYStatement *code) :
+        scope_(scope),
+        code_(code)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYSwitch :
+    CYStatement
+{
+    CYExpression *value_;
+    CYClause *clauses_;
+
+    CYSwitch(CYExpression *value, CYClause *clauses) :
+        value_(value),
+        clauses_(clauses)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYCondition :
+    CYExpression
+{
+    CYExpression *test_;
+    CYExpression *true_;
+    CYExpression *false_;
+
+    CYCondition(CYExpression *test, CYExpression *_true, CYExpression *_false) :
+        test_(test),
+        true_(_true),
+        false_(_false)
+    {
+    }
+
+    CYPrecedence(15)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYAddressOf :
+    CYPrefix
+{
+    CYAddressOf(CYExpression *rhs) :
+        CYPrefix(rhs)
+    {
+    }
+
+    virtual const char *Operator() const {
+        return "&";
+    }
+
+    CYAlphabetic(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+};
+
+struct CYIndirect :
+    CYPrefix
+{
+    CYIndirect(CYExpression *rhs) :
+        CYPrefix(rhs)
+    {
+    }
+
+    virtual const char *Operator() const {
+        return "*";
+    }
+
+    CYAlphabetic(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+};
+
+#define CYReplace \
+    virtual CYExpression *Replace(CYContext &context);
+
+#define CYPostfix_(op, name, args...) \
+    struct CY ## name : \
+        CYPostfix \
+    { args \
+        CY ## name(CYExpression *lhs) : \
+            CYPostfix(lhs) \
+        { \
+        } \
+    \
+        virtual const char *Operator() const { \
+            return op; \
+        } \
+    };
+
+#define CYPrefix_(alphabetic, op, name, args...) \
+    struct CY ## name : \
+        CYPrefix \
+    { args \
+        CY ## name(CYExpression *rhs) : \
+            CYPrefix(rhs) \
+        { \
+        } \
+    \
+        CYAlphabetic(alphabetic) \
+    \
+        virtual const char *Operator() const { \
+            return op; \
+        } \
+    };
+
+#define CYInfix_(alphabetic, precedence, op, name, args...) \
+    struct CY ## name : \
+        CYInfix \
+    { args \
+        CY ## name(CYExpression *lhs, CYExpression *rhs) : \
+            CYInfix(lhs, rhs) \
+        { \
+        } \
+    \
+        CYAlphabetic(alphabetic) \
+        CYPrecedence(precedence) \
+    \
+        virtual const char *Operator() const { \
+            return op; \
+        } \
+    };
+
+#define CYAssignment_(op, name, args...) \
+    struct CY ## name ## Assign : \
+        CYAssignment \
+    { args \
+        CY ## name ## Assign(CYExpression *lhs, CYExpression *rhs) : \
+            CYAssignment(lhs, rhs) \
+        { \
+        } \
+    \
+        virtual const char *Operator() const { \
+            return op; \
+        } \
+    };
+
+CYPostfix_("++", PostIncrement)
+CYPostfix_("--", PostDecrement)
+
+CYPrefix_(true, "delete", Delete)
+CYPrefix_(true, "void", Void)
+CYPrefix_(true, "typeof", TypeOf)
+CYPrefix_(false, "++", PreIncrement)
+CYPrefix_(false, "--", PreDecrement)
+CYPrefix_(false, "+", Affirm)
+CYPrefix_(false, "-", Negate)
+CYPrefix_(false, "~", BitwiseNot)
+CYPrefix_(false, "!", LogicalNot)
+
+CYInfix_(false, 5, "*", Multiply)
+CYInfix_(false, 5, "/", Divide)
+CYInfix_(false, 5, "%", Modulus)
+CYInfix_(false, 6, "+", Add, CYReplace)
+CYInfix_(false, 6, "-", Subtract)
+CYInfix_(false, 7, "<<", ShiftLeft)
+CYInfix_(false, 7, ">>", ShiftRightSigned)
+CYInfix_(false, 7, ">>>", ShiftRightUnsigned)
+CYInfix_(false, 8, "<", Less)
+CYInfix_(false, 8, ">", Greater)
+CYInfix_(false, 8, "<=", LessOrEqual)
+CYInfix_(false, 8, ">=", GreaterOrEqual)
+CYInfix_(true, 8, "instanceof", InstanceOf)
+CYInfix_(true, 8, "in", In)
+CYInfix_(false, 9, "==", Equal)
+CYInfix_(false, 9, "!=", NotEqual)
+CYInfix_(false, 9, "===", Identical)
+CYInfix_(false, 9, "!==", NotIdentical)
+CYInfix_(false, 10, "&", BitwiseAnd)
+CYInfix_(false, 11, "^", BitwiseXOr)
+CYInfix_(false, 12, "|", BitwiseOr)
+CYInfix_(false, 13, "&&", LogicalAnd)
+CYInfix_(false, 14, "||", LogicalOr)
+
+CYAssignment_("=", )
+CYAssignment_("*=", Multiply)
+CYAssignment_("/=", Divide)
+CYAssignment_("%=", Modulus)
+CYAssignment_("+=", Add)
+CYAssignment_("-=", Subtract)
+CYAssignment_("<<=", ShiftLeft)
+CYAssignment_(">>=", ShiftRightSigned)
+CYAssignment_(">>>=", ShiftRightUnsigned)
+CYAssignment_("&=", BitwiseAnd)
+CYAssignment_("^=", BitwiseXOr)
+CYAssignment_("|=", BitwiseOr)
+
 #endif/*CYPARSER_HPP*/