X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/ab2aa221129d1936a866b25679e18445b6c20a77..3ea7eed0e5ab3447a2cc73016594971b507a2344:/Parser.hpp

diff --git a/Parser.hpp b/Parser.hpp
index 2d3a59f..d809e77 100644
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -1,50 +1,30 @@
-/* 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
-
-// XXX: wtf is this here?!
-#define CYPA 16
+#ifndef CYCRIPT_PARSER_HPP
+#define CYCRIPT_PARSER_HPP
 
 #include <iostream>
 
+#include <stack>
 #include <string>
 #include <vector>
 #include <map>
@@ -54,30 +34,13 @@
 #include <cstdlib>
 
 #include "location.hh"
+
+#include "List.hpp"
 #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() {
     }
@@ -136,6 +99,7 @@ struct CYPropertyName {
 };
 
 struct CYExpression;
+struct CYAssignment;
 
 enum CYNeeded {
     CYNever     = -1,
@@ -155,6 +119,34 @@ enum CYFlags {
     CYNoBF =         (CYNoBrace | CYNoFunction),
 };
 
+_finline CYFlags operator ~(CYFlags rhs) {
+    return static_cast<CYFlags>(~static_cast<unsigned>(rhs));
+}
+
+_finline CYFlags operator &(CYFlags lhs, CYFlags rhs) {
+    return static_cast<CYFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs));
+}
+
+_finline CYFlags operator |(CYFlags lhs, CYFlags rhs) {
+    return static_cast<CYFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs));
+}
+
+_finline CYFlags &operator |=(CYFlags &lhs, CYFlags rhs) {
+    return lhs = lhs | rhs;
+}
+
+_finline CYFlags CYLeft(CYFlags flags) {
+    return flags & ~(CYNoDangle | CYNoInteger);
+}
+
+_finline CYFlags CYRight(CYFlags flags) {
+    return flags & ~CYNoBF;
+}
+
+_finline CYFlags CYCenter(CYFlags flags) {
+    return CYLeft(CYRight(flags));
+}
+
 struct CYStatement :
     CYNext<CYStatement>
 {
@@ -164,9 +156,6 @@ struct CYStatement :
     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 *Replace(CYContext &context) = 0;
 
   private:
@@ -310,6 +299,7 @@ enum CYIdentifierFlags {
     CYIdentifierVariable,
     CYIdentifierOther,
     CYIdentifierMagic,
+    CYIdentifierCatch,
 };
 
 typedef std::set<const char *, CYCStringLess> CYCStringSet;
@@ -324,18 +314,20 @@ struct CYIdentifierUsage {
 typedef std::vector<CYIdentifierUsage> CYIdentifierUsageVector;
 
 struct CYScope {
+    bool transparent_;
+
+    CYContext &context_;
+    CYStatement *&statements_;
+
     CYScope *parent_;
 
     CYIdentifierAddressFlagsMap internal_;
     CYIdentifierValueSet identifiers_;
 
-    CYScope() :
-        parent_(NULL)
-    {
-    }
+    CYScope(bool transparent, CYContext &context, CYStatement *&statements);
+    virtual ~CYScope();
 
-    virtual ~CYScope() {
-    }
+    void Close();
 
     void Declare(CYContext &context, CYIdentifier *identifier, CYIdentifierFlags flags);
     virtual CYIdentifier *Lookup(CYContext &context, CYIdentifier *identifier);
@@ -360,20 +352,20 @@ struct CYProgram :
 struct CYNonLocal;
 
 struct CYContext {
-    apr_pool_t *pool_;
     CYOptions &options_;
 
     CYScope *scope_;
     CYIdentifierUsageVector rename_;
 
     CYNonLocal *nonlocal_;
+    CYNonLocal *nextlocal_;
     unsigned unique_;
 
-    CYContext(apr_pool_t *pool, CYOptions &options) :
-        pool_(pool),
+    CYContext(CYOptions &options) :
         options_(options),
         scope_(NULL),
         nonlocal_(NULL),
+        nextlocal_(NULL),
         unique_(0)
     {
     }
@@ -381,6 +373,16 @@ struct CYContext {
     virtual ~CYContext() {
     }
 
+    template <typename Type_>
+    void ReplaceAll(Type_ *&values) {
+        Type_ **last(&values);
+        CYForEach (next, values) {
+            Replace(*last = next);
+            if (*last != NULL)
+                last = &(*last)->next_;
+        }
+    }
+
     template <typename Type_>
     void Replace(Type_ *&value) {
         for (;;) if (value == NULL)
@@ -428,10 +430,7 @@ struct CYBlock :
     }
 
     void AddPrev(CYStatement *statement) {
-        CYStatement *last(statement);
-        while (last->next_ != NULL)
-            last = last->next_;
-        last->SetNext(statements_);
+        CYSetLast(statement, statements_);
         statements_ = statement;
     }
 
@@ -449,10 +448,11 @@ enum CYState {
 
 class CYDriver {
   public:
-    CYPool pool_;
+    void *scanner_;
 
     CYState state_;
-    void *scanner_;
+    bool statement_;
+    std::stack<bool> in_;
 
     const char *data_;
     size_t size_;
@@ -511,7 +511,7 @@ class CYDriver {
     void ScannerDestroy();
 
   public:
-    CYDriver(apr_pool_t *pool = NULL, const std::string &filename = "");
+    CYDriver(const std::string &filename = "");
     ~CYDriver();
 
     Condition GetCondition();
@@ -527,8 +527,8 @@ struct CYForInitialiser {
     virtual ~CYForInitialiser() {
     }
 
-    virtual void For(CYOutput &out) const = 0;
     virtual CYExpression *Replace(CYContext &context) = 0;
+    virtual void Output(CYOutput &out, CYFlags flags) const = 0;
 };
 
 struct CYForInInitialiser {
@@ -536,9 +536,12 @@ struct CYForInInitialiser {
     }
 
     virtual void ForIn(CYOutput &out, CYFlags flags) const = 0;
-    virtual const char *ForEachIn() const = 0;
-    virtual CYExpression *ForEachIn(CYContext &out) = 0;
+    virtual CYStatement *ForEachIn(CYContext &out, CYExpression *value) = 0;
+
     virtual CYExpression *Replace(CYContext &context) = 0;
+    virtual CYAssignment *Assignment(CYContext &context) = 0;
+
+    virtual void Output(CYOutput &out, CYFlags flags) const = 0;
 };
 
 struct CYNumber;
@@ -557,11 +560,8 @@ struct CYExpression :
         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 CYStatement *ForEachIn(CYContext &out, CYExpression *value);
 
     virtual CYExpression *AddArgument(CYContext &context, CYExpression *value);
 
@@ -572,9 +572,8 @@ struct CYExpression :
     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 CYAssignment *Assignment(CYContext &context);
 
     virtual CYExpression *Primitive(CYContext &context) {
         return this;
@@ -599,8 +598,9 @@ struct CYExpression :
     }
 
 #define CYPrecedence(value) \
+    static const unsigned Precedence_ = value; \
     virtual unsigned Precedence() const { \
-        return value; \
+        return Precedence_; \
     }
 
 #define CYRightHand(value) \
@@ -619,10 +619,7 @@ struct CYCompound :
     }
 
     void AddPrev(CYExpression *expression) {
-        CYExpression *last(expression);
-        while (last->next_ != NULL)
-            last = last->next_;
-        last->SetNext(expressions_);
+        CYSetLast(expression, expressions_);
         expressions_ = expression;
     }
 
@@ -632,35 +629,22 @@ struct CYCompound :
     void Output(CYOutput &out, CYFlags flags) const;
 };
 
+struct CYDeclaration;
+
 struct CYFunctionParameter :
     CYNext<CYFunctionParameter>,
     CYThing
 {
-    CYIdentifier *name_;
+    CYForInInitialiser *initialiser_;
 
-    CYFunctionParameter(CYIdentifier *name, CYFunctionParameter *next = NULL) :
+    CYFunctionParameter(CYForInInitialiser *initialiser, CYFunctionParameter *next = NULL) :
         CYNext<CYFunctionParameter>(next),
-        name_(name)
-    {
-    }
-
-    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)
+        initialiser_(initialiser)
     {
     }
 
-    virtual CYFunctionParameter *Replace(CYContext &context, CYBlock &code);
-    virtual void Output(CYOutput &out) const;
+    void Replace(CYContext &context, CYBlock &code);
+    void Output(CYOutput &out) const;
 };
 
 struct CYComprehension :
@@ -961,6 +945,11 @@ struct CYVariable :
     {
     }
 
+    CYVariable(const char *name) :
+        name_(new($pool) CYIdentifier(name))
+    {
+    }
+
     CYPrecedence(0)
     CYRightHand(false)
 
@@ -1073,7 +1062,7 @@ struct CYArgument :
     {
     }
 
-    void Replace(CYContext &context);
+    CYArgument *Replace(CYContext &context);
     void Output(CYOutput &out) const;
 };
 
@@ -1164,20 +1153,19 @@ struct CYDeclaration :
     }
 
     virtual void ForIn(CYOutput &out, CYFlags flags) const;
-
-    virtual const char *ForEachIn() const;
-    virtual CYExpression *ForEachIn(CYContext &out);
+    virtual CYStatement *ForEachIn(CYContext &out, CYExpression *value);
 
     virtual CYExpression *Replace(CYContext &context);
+
     virtual CYAssignment *Assignment(CYContext &context);
+    CYVariable *Variable(CYContext &context);
 
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
 struct CYDeclarations :
     CYNext<CYDeclarations>,
-    CYThing,
-    CYForInitialiser
+    CYThing
 {
     CYDeclaration *declaration_;
 
@@ -1187,15 +1175,31 @@ struct CYDeclarations :
     {
     }
 
-    virtual void For(CYOutput &out) const;
+    void Replace(CYContext &context);
 
-    virtual CYCompound *Replace(CYContext &context);
+    CYCompound *Compound(CYContext &context);
     CYProperty *Property(CYContext &context);
+    CYArgument *Argument(CYContext &context);
+    CYFunctionParameter *Parameter(CYContext &context);
 
     virtual void Output(CYOutput &out) const;
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
+struct CYForDeclarations :
+    CYForInitialiser
+{
+    CYDeclarations *declarations_;
+
+    CYForDeclarations(CYDeclarations *declarations) :
+        declarations_(declarations)
+    {
+    }
+
+    virtual CYCompound *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
 struct CYVar :
     CYStatement
 {
@@ -1210,15 +1214,15 @@ struct CYVar :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
-struct CYLet :
+struct CYLetStatement :
     CYStatement
 {
     CYDeclarations *declarations_;
-    CYBlock code_;
+    CYStatement *code_;
 
-    CYLet(CYDeclarations *declarations, CYStatement *statements) :
+    CYLetStatement(CYDeclarations *declarations, CYStatement *code) :
         declarations_(declarations),
-        code_(statements)
+        code_(code)
     {
     }
 
@@ -1311,8 +1315,6 @@ struct CYMember :
     void SetLeft(CYExpression *object) {
         object_ = object;
     }
-
-    void Replace_(CYContext &context);
 };
 
 struct CYDirectMember :
@@ -1345,13 +1347,16 @@ struct CYIndirectMember :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
-struct CYNew :
+namespace cy {
+namespace Syntax {
+
+struct New :
     CYExpression
 {
     CYExpression *constructor_;
     CYArgument *arguments_;
 
-    CYNew(CYExpression *constructor, CYArgument *arguments) :
+    New(CYExpression *constructor, CYArgument *arguments) :
         constructor_(constructor),
         arguments_(arguments)
     {
@@ -1369,6 +1374,8 @@ struct CYNew :
     virtual CYExpression *AddArgument(CYContext &context, CYExpression *value);
 };
 
+} }
+
 struct CYCall :
     CYExpression
 {
@@ -1540,7 +1547,6 @@ struct CYExpress :
             throw;
     }
 
-    virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
@@ -1590,7 +1596,6 @@ struct CYReturn :
 struct CYEmpty :
     CYStatement
 {
-    virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
@@ -1694,6 +1699,17 @@ struct CYSwitch :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
+struct CYDebugger :
+    CYStatement
+{
+    CYDebugger()
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
 struct CYCondition :
     CYExpression
 {
@@ -1862,4 +1878,4 @@ CYAssignment_("&=", BitwiseAnd)
 CYAssignment_("^=", BitwiseXOr)
 CYAssignment_("|=", BitwiseOr)
 
-#endif/*CYPARSER_HPP*/
+#endif/*CYCRIPT_PARSER_HPP*/