Move CYNext, CYSetLast, and CYForEach to List.hpp.

[cycript.git] / Parser.hpp

diff --git a/Parser.hpp b/Parser.hpp
index 9ff1d38548ed1054ed3e56d8fbc99f28f8d33ea1..d8539399fb9c13a016ce5cb7c63284a7390741f5 100644 (file)
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -1,48 +1,27 @@
-/* Cycript - Inlining/Optimizing JavaScript Compiler
- * Copyright (C) 2009  Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2010  Jay Freeman (saurik)

 */
 
 */
 

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

 /*
 /*

- *        Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
+ * 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.

  *
  *

- * 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.
+ * 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.

  *
  *

- * 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.
-*/
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
+**/

 /* }}} */
 
 #ifndef CYPARSER_HPP
 #define CYPARSER_HPP
 
 /* }}} */
 
 #ifndef CYPARSER_HPP
 #define CYPARSER_HPP
 

-// XXX: wtf is this here?!
-#define CYPA 16
-

 #include <iostream>
 
 #include <string>
 #include <iostream>
 
 #include <string>


@@ -50,33 +29,17 @@
 #include <map>
 #include <set>
 
 #include <map>
 #include <set>
 

+#include <cstdio>

 #include <cstdlib>
 
 #include "location.hh"
 #include <cstdlib>
 
 #include "location.hh"

+
+#include "List.hpp"

 #include "Pooling.hpp"
 #include "Options.hpp"
 
 class CYContext;
 
 #include "Pooling.hpp"
 #include "Options.hpp"
 
 class CYContext;
 

-template <typename Type_>
-struct CYNext {
-    Type_ *next_;
-
-    CYNext() :
-        next_(NULL)
-    {
-    }
-
-    CYNext(Type_ *next) :
-        next_(next)
-    {
-    }
-
-    void SetNext(Type_ *next) {
-        next_ = next;
-    }
-};
-

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


@@ -163,9 +126,7 @@ struct CYStatement :
     void Single(CYOutput &out, CYFlags flags) const;
     void Multiple(CYOutput &out, CYFlags flags = CYNoFlags) const;
 
     void Single(CYOutput &out, CYFlags flags) const;
     void Multiple(CYOutput &out, CYFlags flags = CYNoFlags) const;
 

-    CYStatement *ReplaceAll(CYContext &context);

     virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Collapse(CYContext &context);

-

     virtual CYStatement *Replace(CYContext &context) = 0;
 
   private:
     virtual CYStatement *Replace(CYContext &context) = 0;
 
   private:


@@ -309,6 +270,7 @@ enum CYIdentifierFlags {
     CYIdentifierVariable,
     CYIdentifierOther,
     CYIdentifierMagic,
     CYIdentifierVariable,
     CYIdentifierOther,
     CYIdentifierMagic,

+    CYIdentifierCatch,

 };
 
 typedef std::set<const char *, CYCStringLess> CYCStringSet;
 };
 
 typedef std::set<const char *, CYCStringLess> CYCStringSet;


@@ -322,19 +284,27 @@ struct CYIdentifierUsage {
 
 typedef std::vector<CYIdentifierUsage> CYIdentifierUsageVector;
 
 
 typedef std::vector<CYIdentifierUsage> CYIdentifierUsageVector;
 

+// XXX: strategy pattern, maybe subclass
+enum CYScopeType {
+    CYScopeCatch,
+    CYScopeFunction,
+    CYScopeProgram,
+};
+

 struct CYScope {
 struct CYScope {

+    CYScopeType type_;
+
+    CYContext &context_;
+    CYStatement *&statements_;
+

     CYScope *parent_;
 
     CYIdentifierAddressFlagsMap internal_;
     CYIdentifierValueSet identifiers_;
 
     CYScope *parent_;
 
     CYIdentifierAddressFlagsMap internal_;
     CYIdentifierValueSet identifiers_;
 

-    CYScope() :
-        parent_(NULL)
-    {
-    }
+    CYScope(CYScopeType type, CYContext &context, CYStatement *&statements);

 
 

-    virtual ~CYScope() {
-    }
+    void Close();

 
     void Declare(CYContext &context, CYIdentifier *identifier, CYIdentifierFlags flags);
     virtual CYIdentifier *Lookup(CYContext &context, CYIdentifier *identifier);
 
     void Declare(CYContext &context, CYIdentifier *identifier, CYIdentifierFlags flags);
     virtual CYIdentifier *Lookup(CYContext &context, CYIdentifier *identifier);


@@ -356,24 +326,39 @@ struct CYProgram :
     virtual void Output(CYOutput &out) const;
 };
 
     virtual void Output(CYOutput &out) const;
 };
 

-struct CYContext :
-    CYScope
-{
-    apr_pool_t *pool_;
+struct CYNonLocal;
+
+struct CYContext {

     CYOptions &options_;
     CYOptions &options_;

+

     CYScope *scope_;
     CYIdentifierUsageVector rename_;
 
     CYScope *scope_;
     CYIdentifierUsageVector rename_;
 

-    CYContext(apr_pool_t *pool, CYOptions &options) :
-        pool_(pool),
+    CYNonLocal *nonlocal_;
+    CYNonLocal *nextlocal_;
+    unsigned unique_;
+
+    CYContext(CYOptions &options) :

         options_(options),
         options_(options),

-        scope_(this)
+        scope_(NULL),
+        nonlocal_(NULL),
+        nextlocal_(NULL),
+        unique_(0)

     {
     }
 
     virtual ~CYContext() {
     }
 
     {
     }
 
     virtual ~CYContext() {
     }
 

+    template <typename Type_>
+    void ReplaceAll(Type_ *&values) {
+        Type_ **last(&values);
+        CYForEach (next, values) {
+            Replace(*last);
+            last = &(*last)->next_;
+        }
+    }
+

     template <typename Type_>
     void Replace(Type_ *&value) {
         for (;;) if (value == NULL)
     template <typename Type_>
     void Replace(Type_ *&value) {
         for (;;) if (value == NULL)


@@ -385,6 +370,24 @@ struct CYContext :
             else break;
         }
     }
             else break;
         }
     }

+
+    void NonLocal(CYStatement *&statements);
+    CYIdentifier *Unique();
+};
+
+struct CYNonLocal {
+    CYIdentifier *identifier_;
+
+    CYNonLocal() :
+        identifier_(NULL)
+    {
+    }
+
+    CYIdentifier *Target(CYContext &context) {
+        if (identifier_ == NULL)
+            identifier_ = context.Unique();
+        return identifier_;
+    }

 };
 
 struct CYBlock :
 };
 
 struct CYBlock :


@@ -403,10 +406,7 @@ struct CYBlock :
     }
 
     void AddPrev(CYStatement *statement) {
     }
 
     void AddPrev(CYStatement *statement) {

-        CYStatement *last(statement);
-        while (last->next_ != NULL)
-            last = last->next_;
-        last->SetNext(statements_);
+        CYSetLast(statement, statements_);

         statements_ = statement;
     }
 
         statements_ = statement;
     }
 


@@ -424,8 +424,6 @@ enum CYState {
 
 class CYDriver {
   public:
 
 class CYDriver {
   public:

-    CYPool pool_;
-

     CYState state_;
     void *scanner_;
 
     CYState state_;
     void *scanner_;
 


@@ -454,12 +452,39 @@ class CYDriver {
     CYProgram *program_;
     Errors 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:
   private:
     void ScannerInit();
     void ScannerDestroy();
 
   public:

-    CYDriver(const std::string &filename);
+    CYDriver(const std::string &filename = "");

     ~CYDriver();
 
     Condition GetCondition();
     ~CYDriver();
 
     Condition GetCondition();


@@ -511,6 +536,8 @@ struct CYExpression :
     virtual const char *ForEachIn() const;
     virtual CYExpression *ForEachIn(CYContext &out);
 
     virtual const char *ForEachIn() const;
     virtual CYExpression *ForEachIn(CYContext &out);
 

+    virtual CYExpression *AddArgument(CYContext &context, CYExpression *value);
+

     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 void Output(CYOutput &out) const;
     virtual void Output(CYOutput &out, CYFlags flags) const = 0;
     void Output(CYOutput &out, unsigned precedence, CYFlags flags) const;


@@ -518,8 +545,6 @@ struct CYExpression :
     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;
 

-    CYExpression *ReplaceAll(CYContext &context);
-

     virtual CYExpression *Replace(CYContext &context) = 0;
 
     virtual CYExpression *Primitive(CYContext &context) {
     virtual CYExpression *Replace(CYContext &context) = 0;
 
     virtual CYExpression *Primitive(CYContext &context) {


@@ -545,8 +570,9 @@ struct CYExpression :
     }
 
 #define CYPrecedence(value) \
     }
 
 #define CYPrecedence(value) \

+    static const unsigned Precedence_ = value; \

     virtual unsigned Precedence() const { \
     virtual unsigned Precedence() const { \

-        return value; \
+        return Precedence_; \

     }
 
 #define CYRightHand(value) \
     }
 
 #define CYRightHand(value) \


@@ -565,10 +591,7 @@ struct CYCompound :
     }
 
     void AddPrev(CYExpression *expression) {
     }
 
     void AddPrev(CYExpression *expression) {

-        CYExpression *last(expression);
-        while (last->next_ != NULL)
-            last = last->next_;
-        last->SetNext(expressions_);
+        CYSetLast(expression, expressions_);

         expressions_ = expression;
     }
 
         expressions_ = expression;
     }
 


@@ -590,7 +613,22 @@ struct CYFunctionParameter :
     {
     }
 
     {
     }
 

-    void Replace(CYContext &context);
+    virtual CYFunctionParameter *Replace(CYContext &context, CYBlock &code);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYOptionalFunctionParameter :
+    CYFunctionParameter
+{
+    CYExpression *initializer_;
+
+    CYOptionalFunctionParameter(CYIdentifier *name, CYExpression *initializer, CYFunctionParameter *next = NULL) :
+        CYFunctionParameter(name, next),
+        initializer_(initializer)
+    {
+    }
+
+    virtual CYFunctionParameter *Replace(CYContext &context, CYBlock &code);

     virtual void Output(CYOutput &out) const;
 };
 
     virtual void Output(CYOutput &out) const;
 };
 


@@ -892,6 +930,11 @@ struct CYVariable :
     {
     }
 
     {
     }
 

+    CYVariable(const char *name) :
+        name_(new($pool) CYIdentifier(name))
+    {
+    }
+

     CYPrecedence(0)
     CYRightHand(false)
 
     CYPrecedence(0)
     CYRightHand(false)
 


@@ -1218,7 +1261,7 @@ struct CYObject :
 {
     CYProperty *properties_;
 
 {
     CYProperty *properties_;
 

-    CYObject(CYProperty *properties) :
+    CYObject(CYProperty *properties = NULL) :

         properties_(properties)
     {
     }
         properties_(properties)
     {
     }


@@ -1276,13 +1319,16 @@ struct CYIndirectMember :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 

-struct CYNew :
+namespace cy {
+namespace Syntax {
+
+struct New :

     CYExpression
 {
     CYExpression *constructor_;
     CYArgument *arguments_;
 
     CYExpression
 {
     CYExpression *constructor_;
     CYArgument *arguments_;
 

-    CYNew(CYExpression *constructor, CYArgument *arguments) :
+    New(CYExpression *constructor, CYArgument *arguments) :

         constructor_(constructor),
         arguments_(arguments)
     {
         constructor_(constructor),
         arguments_(arguments)
     {


@@ -1296,8 +1342,12 @@ struct CYNew :
 
     virtual CYExpression *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 
     virtual CYExpression *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;

+
+    virtual CYExpression *AddArgument(CYContext &context, CYExpression *value);

 };
 
 };
 

+} }
+

 struct CYCall :
     CYExpression
 {
 struct CYCall :
     CYExpression
 {


@@ -1315,6 +1365,29 @@ struct CYCall :
 
     virtual CYExpression *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 
     virtual CYExpression *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;

+
+    virtual CYExpression *AddArgument(CYContext &context, CYExpression *value);
+};
+
+struct CYRubyProc;
+
+struct CYRubyBlock :
+    CYExpression
+{
+    CYExpression *call_;
+    CYRubyProc *proc_;
+
+    CYRubyBlock(CYExpression *call, CYRubyProc *proc) :
+        call_(call),
+        proc_(proc)
+    {
+    }
+
+    CYPrecedence(1)
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;

 };
 
 struct CYIf :
 };
 
 struct CYIf :


@@ -1367,15 +1440,18 @@ struct CYWhile :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 

+// XXX: this should be split up into CYAnonymousFunction and CYNamedFunction (subclass)

 struct CYFunction {
     CYIdentifier *name_;
     CYFunctionParameter *parameters_;
     CYBlock code_;
 struct CYFunction {
     CYIdentifier *name_;
     CYFunctionParameter *parameters_;
     CYBlock code_;

+    CYNonLocal *nonlocal_;

 
     CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
         name_(name),
         parameters_(parameters),
 
     CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
         name_(name),
         parameters_(parameters),

-        code_(statements)
+        code_(statements),
+        nonlocal_(NULL)

     {
     }
 
     {
     }
 


@@ -1387,6 +1463,7 @@ struct CYFunction {
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 

+// XXX: this should be split up into CYAnonymousFunctionExpression and CYNamedFunctionExpression

 struct CYFunctionExpression :
     CYFunction,
     CYExpression
 struct CYFunctionExpression :
     CYFunction,
     CYExpression


@@ -1403,6 +1480,20 @@ struct CYFunctionExpression :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 

+// XXX: this should derive from CYAnonymousFunctionExpression
+struct CYRubyProc :
+    CYFunctionExpression
+{
+    CYRubyProc(CYFunctionParameter *parameters, CYStatement *statements) :
+        CYFunctionExpression(NULL, parameters, statements)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+// XXX: this should derive from CYNamedFunction

 struct CYFunctionStatement :
     CYFunction,
     CYStatement
 struct CYFunctionStatement :
     CYFunction,
     CYStatement


@@ -1539,7 +1630,7 @@ struct Throw :
 {
     CYExpression *value_;
 
 {
     CYExpression *value_;
 

-    Throw(CYExpression *value) :
+    Throw(CYExpression *value = NULL) :

         value_(value)
     {
     }
         value_(value)
     {
     }