In trampoline, make $strlcpy not crash given NULL.

[cycript.git] / Parser.hpp

diff --git a/Parser.hpp b/Parser.hpp
index d91530549a08b2729d0c9e4aa1f5f10763191bc4..fab18af4d6c3f6d09ed7494a5683f10fe447de3b 100644 (file)
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -1,20 +1,20 @@
 /* Cycript - Optimizing JavaScript Compiler/Runtime
 /* Cycript - Optimizing JavaScript Compiler/Runtime

- * Copyright (C) 2009-2012  Jay Freeman (saurik)
+ * Copyright (C) 2009-2013  Jay Freeman (saurik)

 */
 
 */
 

-/* GNU Lesser General Public License, Version 3 {{{ */
+/* GNU General Public License, Version 3 {{{ */

 /*
 /*

- * Cycript is free software: you can redistribute it and/or modify it under
- * the terms of the GNU Lesser General Public License as published by the
- * Free Software Foundation, either version 3 of the License, or (at your
- * option) any later version.
+ * Cycript is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.

  *
  *

- * Cycript is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
- * License for more details.
+ * Cycript is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.

  *
  *

- * You should have received a copy of the GNU Lesser General Public License
+ * You should have received a copy of the GNU General Public License

  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
 **/
 /* }}} */
  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
 **/
 /* }}} */


@@ -24,7 +24,6 @@
 
 #include <iostream>
 
 
 #include <iostream>
 

-#include <stack>

 #include <string>
 #include <vector>
 #include <map>
 #include <string>
 #include <vector>
 #include <map>


@@ -33,13 +32,11 @@
 #include <cstdio>
 #include <cstdlib>
 
 #include <cstdio>
 #include <cstdlib>
 

-#include "location.hh"
-

 #include "List.hpp"
 #include "Pooling.hpp"
 #include "Options.hpp"
 
 #include "List.hpp"
 #include "Pooling.hpp"
 #include "Options.hpp"
 

-class CYContext;
+struct CYContext;

 
 struct CYThing {
     virtual ~CYThing() {
 
 struct CYThing {
     virtual ~CYThing() {


@@ -463,114 +460,6 @@ struct CYBlock :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 

-enum CYState {
-    CYClear,
-    CYRestricted,
-    CYNewLine
-};
-
-class CYStream :
-    public std::istream
-{
-  private:
-    class CYBuffer :
-        public std::streambuf
-    {
-      public:
-        CYBuffer(const char *start, const char *end) {
-            setg(const_cast<char *>(start), const_cast<char *>(start), const_cast<char *>(end));
-        }
-    } buffer_;
-
-  public:
-    CYStream(const char *start, const char *end) :
-        std::istream(&buffer_),
-        buffer_(start, end)
-    {
-    }
-};
-
-class CYDriver {
-  public:
-    void *scanner_;
-
-    CYState state_;
-    std::stack<bool> in_;
-
-    struct {
-        bool AtImplementation;
-        bool Function;
-        bool OpenBrace;
-    } no_;
-
-    std::istream &data_;
-
-    bool strict_;
-    bool commented_;
-
-    enum Condition {
-        RegExpCondition,
-        XMLContentCondition,
-        XMLTagCondition,
-    };
-
-    std::string filename_;
-
-    struct Error {
-        bool warning_;
-        cy::location location_;
-        std::string message_;
-    };
-
-    typedef std::vector<Error> Errors;
-
-    CYProgram *program_;
-    Errors errors_;
-
-    bool auto_;
-
-    struct Context {
-        CYExpression *context_;
-
-        Context(CYExpression *context) :
-            context_(context)
-        {
-        }
-
-        typedef std::vector<CYWord *> Words;
-        Words words_;
-    };
-
-    typedef std::vector<Context> Contexts;
-    Contexts contexts_;
-
-    CYExpression *context_;
-
-    enum Mode {
-        AutoNone,
-        AutoPrimary,
-        AutoDirect,
-        AutoIndirect,
-        AutoMessage
-    } mode_;
-
-  private:
-    void ScannerInit();
-    void ScannerDestroy();
-
-  public:
-    CYDriver(std::istream &data, const std::string &filename = "");
-    ~CYDriver();
-
-    Condition GetCondition();
-    void SetCondition(Condition condition);
-
-    void PushCondition(Condition condition);
-    void PopCondition();
-
-    void Warning(const cy::location &location, const char *message);
-};
-

 struct CYForInitialiser {
     virtual ~CYForInitialiser() {
     }
 struct CYForInitialiser {
     virtual ~CYForInitialiser() {
     }


@@ -596,13 +485,12 @@ struct CYNumber;
 struct CYString;
 
 struct CYExpression :
 struct CYString;
 
 struct CYExpression :

-    CYNext<CYExpression>,

     CYForInitialiser,
     CYForInInitialiser,
     CYClassName,
     CYThing
 {
     CYForInitialiser,
     CYForInInitialiser,
     CYClassName,
     CYThing
 {

-    virtual unsigned Precedence() const = 0;
+    virtual int Precedence() const = 0;

 
     virtual bool RightHand() const {
         return true;
 
     virtual bool RightHand() const {
         return true;


@@ -615,7 +503,7 @@ struct CYExpression :
 
     virtual void Output(CYOutput &out) const;
     virtual void Output(CYOutput &out, CYFlags flags) const = 0;
 
     virtual void Output(CYOutput &out) const;
     virtual void Output(CYOutput &out, CYFlags flags) const = 0;

-    void Output(CYOutput &out, unsigned precedence, CYFlags flags) const;
+    void Output(CYOutput &out, int precedence, CYFlags flags) const;

 
     virtual CYExpression *ClassName(CYContext &context, bool object);
     virtual void ClassName(CYOutput &out, bool object) const;
 
     virtual CYExpression *ClassName(CYContext &context, bool object);
     virtual void ClassName(CYOutput &out, bool object) const;


@@ -624,7 +512,7 @@ struct CYExpression :
     virtual CYAssignment *Assignment(CYContext &context);
 
     virtual CYExpression *Primitive(CYContext &context) {
     virtual CYAssignment *Assignment(CYContext &context);
 
     virtual CYExpression *Primitive(CYContext &context) {

-        return this;
+        return NULL;

     }
 
     virtual CYNumber *Number(CYContext &context) {
     }
 
     virtual CYNumber *Number(CYContext &context) {


@@ -646,8 +534,8 @@ struct CYExpression :
     }
 
 #define CYPrecedence(value) \
     }
 
 #define CYPrecedence(value) \

-    static const unsigned Precedence_ = value; \
-    virtual unsigned Precedence() const { \
+    static const int Precedence_ = value; \
+    virtual int Precedence() const { \

         return Precedence_; \
     }
 
         return Precedence_; \
     }
 


@@ -659,16 +547,16 @@ struct CYExpression :
 struct CYCompound :
     CYExpression
 {
 struct CYCompound :
     CYExpression
 {

-    CYExpression *expressions_;
+    CYExpression *expression_;
+    CYExpression *next_;

 
 

-    CYCompound(CYExpression *expressions = NULL) :
-        expressions_(expressions)
+    CYCompound(CYExpression *expression, CYExpression *next = NULL) :
+        expression_(expression),
+        next_(next)

     {
     {

-    }
-
-    void AddPrev(CYExpression *expression) {
-        CYSetLast(expression) = expressions_;
-        expressions_ = expression;
+        if (expression_ == NULL)
+            throw;
+        _assert(expression_ != NULL);

     }
 
     CYPrecedence(17)
     }
 
     CYPrecedence(17)


@@ -706,6 +594,11 @@ struct CYComprehension :
     {
     }
 
     {
     }
 

+    CYComprehension *Modify(CYComprehension *next) {
+        next_ = next;
+        return this;
+    }
+

     virtual const char *Name() const = 0;
 
     virtual CYFunctionParameter *Parameter(CYContext &context) const = 0;
     virtual const char *Name() const = 0;
 
     virtual CYFunctionParameter *Parameter(CYContext &context) const = 0;


@@ -763,7 +656,8 @@ struct CYIfComprehension :
 {
     CYExpression *test_;
 
 {
     CYExpression *test_;
 

-    CYIfComprehension(CYExpression *test) :
+    CYIfComprehension(CYExpression *test, CYComprehension *next = NULL) :
+        CYComprehension(next),

         test_(test)
     {
     }
         test_(test)
     {
     }


@@ -800,6 +694,10 @@ struct CYLiteral :
 {
     CYPrecedence(0)
     CYRightHand(false)
 {
     CYPrecedence(0)
     CYRightHand(false)

+
+    virtual CYExpression *Primitive(CYContext &context) {
+        return this;
+    }

 };
 
 struct CYTrivial :
 };
 
 struct CYTrivial :


@@ -1419,7 +1317,7 @@ struct New :
     {
     }
 
     {
     }
 

-    virtual unsigned Precedence() const {
+    virtual int Precedence() const {

         return arguments_ == NULL ? 2 : 1;
     }
 
         return arguments_ == NULL ? 2 : 1;
     }
 


@@ -1619,7 +1517,7 @@ struct CYExpress :
     CYExpress(CYExpression *expression) :
         expression_(expression)
     {
     CYExpress(CYExpression *expression) :
         expression_(expression)
     {

-        if (expression == NULL)
+        if (expression_ == NULL)

             throw;
     }
 
             throw;
     }
 


@@ -1690,6 +1588,317 @@ struct CYFinally :
     virtual void Output(CYOutput &out) const;
 };
 
     virtual void Output(CYOutput &out) const;
 };
 

+struct CYTypeSpecifier :
+    CYThing
+{
+    virtual CYExpression *Replace(CYContext &context) = 0;
+};
+
+struct CYTypeError :
+    CYTypeSpecifier
+{
+    CYTypeError() {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeVoid :
+    CYTypeSpecifier
+{
+    CYTypeVoid() {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeVariable :
+    CYTypeSpecifier
+{
+    CYIdentifier *name_;
+
+    CYTypeVariable(CYIdentifier *name) :
+        name_(name)
+    {
+    }
+
+    CYTypeVariable(const char *name) :
+        name_(new($pool) CYIdentifier(name))
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeUnsigned :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeUnsigned(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeSigned :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeSigned(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeLong :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeLong(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeShort :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeShort(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeModifier :
+    CYNext<CYTypeModifier>
+{
+    CYTypeModifier(CYTypeModifier *next) :
+        CYNext<CYTypeModifier>(next)
+    {
+    }
+
+    virtual int Precedence() const = 0;
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type) = 0;
+    CYExpression *Replace(CYContext &context, CYExpression *type);
+
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const = 0;
+    void Output(CYOutput &out, int precedence, CYIdentifier *identifier) const;
+};
+
+struct CYTypeArrayOf :
+    CYTypeModifier
+{
+    CYExpression *size_;
+
+    CYTypeArrayOf(CYExpression *size, CYTypeModifier *next = NULL) :
+        CYTypeModifier(next),
+        size_(size)
+    {
+    }
+
+    CYPrecedence(1)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+
+struct CYTypeConstant :
+    CYTypeModifier
+{
+    CYTypeConstant(CYTypeModifier *next = NULL) :
+        CYTypeModifier(next)
+    {
+    }
+
+    CYPrecedence(0)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+
+struct CYTypePointerTo :
+    CYTypeModifier
+{
+    CYTypePointerTo(CYTypeModifier *next = NULL) :
+        CYTypeModifier(next)
+    {
+    }
+
+    CYPrecedence(0)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+
+struct CYTypeVolatile :
+    CYTypeModifier
+{
+    CYTypeVolatile(CYTypeModifier *next = NULL) :
+        CYTypeModifier(next)
+    {
+    }
+
+    CYPrecedence(0)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+
+struct CYTypedIdentifier :
+    CYNext<CYTypedIdentifier>,
+    CYThing
+{
+    CYIdentifier *identifier_;
+    CYTypeSpecifier *specifier_;
+    CYTypeModifier *modifier_;
+
+    CYTypedIdentifier(CYIdentifier *identifier = NULL) :
+        identifier_(identifier),
+        specifier_(NULL),
+        modifier_(NULL)
+    {
+    }
+
+    CYTypedIdentifier(CYTypeSpecifier *specifier, CYTypeModifier *modifier = NULL) :
+        identifier_(NULL),
+        specifier_(specifier),
+        modifier_(modifier)
+    {
+    }
+
+    inline CYTypedIdentifier *Modify(CYTypeModifier *modifier) {
+        CYSetLast(modifier_) = modifier;
+        return this;
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYEncodedType :
+    CYExpression
+{
+    CYTypedIdentifier *typed_;
+
+    CYEncodedType(CYTypedIdentifier *typed) :
+        typed_(typed)
+    {
+    }
+
+    CYPrecedence(1)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYTypedParameter :
+    CYNext<CYTypedParameter>,
+    CYThing
+{
+    CYTypedIdentifier *typed_;
+
+    CYTypedParameter(CYTypedIdentifier *typed, CYTypedParameter *next) :
+        CYNext<CYTypedParameter>(next),
+        typed_(typed)
+    {
+    }
+
+    CYArgument *Argument(CYContext &context);
+    CYFunctionParameter *Parameters(CYContext &context);
+    CYExpression *TypeSignature(CYContext &context, CYExpression *prefix);
+
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYLambda :
+    CYExpression
+{
+    CYTypedIdentifier *typed_;
+    CYTypedParameter *parameters_;
+    CYStatement *statements_;
+
+    CYLambda(CYTypedIdentifier *typed, CYTypedParameter *parameters, CYStatement *statements) :
+        typed_(typed),
+        parameters_(parameters),
+        statements_(statements)
+    {
+    }
+
+    CYPrecedence(1)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYTypeDefinition :
+    CYStatement
+{
+    CYTypedIdentifier *typed_;
+
+    CYTypeDefinition(CYTypedIdentifier *typed) :
+        typed_(typed)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYTypeBlockWith :
+    CYTypeModifier
+{
+    CYTypedParameter *parameters_;
+
+    CYTypeBlockWith(CYTypedParameter *parameters, CYTypeModifier *next = NULL) :
+        CYTypeModifier(next),
+        parameters_(parameters)
+    {
+    }
+
+    CYPrecedence(0)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+
+struct CYTypeFunctionWith :
+    CYTypeModifier
+{
+    CYTypedParameter *parameters_;
+
+    CYTypeFunctionWith(CYTypedParameter *parameters, CYTypeModifier *next = NULL) :
+        CYTypeModifier(next),
+        parameters_(parameters)
+    {
+    }
+
+    CYPrecedence(1)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+

 namespace cy {
 namespace Syntax {
 
 namespace cy {
 namespace Syntax {
 


@@ -1917,7 +2126,7 @@ CYPrefix_(false, "-", Negate)
 CYPrefix_(false, "~", BitwiseNot)
 CYPrefix_(false, "!", LogicalNot)
 
 CYPrefix_(false, "~", BitwiseNot)
 CYPrefix_(false, "!", LogicalNot)
 

-CYInfix_(false, 5, "*", Multiply)
+CYInfix_(false, 5, "*", Multiply, CYReplace)

 CYInfix_(false, 5, "/", Divide)
 CYInfix_(false, 5, "%", Modulus)
 CYInfix_(false, 6, "+", Add, CYReplace)
 CYInfix_(false, 5, "/", Divide)
 CYInfix_(false, 5, "%", Modulus)
 CYInfix_(false, 6, "+", Add, CYReplace)