X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/9cd63688ae354a40aa0d7995984d77b83706f241..6dc7eb4f27d6bc2d188d7c6a27695a493244a33a:/Parser.hpp

diff --git a/Parser.hpp b/Parser.hpp
index 2743166..9dbb9b9 100644
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -1,20 +1,20 @@
 /* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2010  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/>.
 **/
 /* }}} */
@@ -24,6 +24,7 @@
 
 #include <iostream>
 
+#include <stack>
 #include <string>
 #include <vector>
 #include <map>
@@ -38,7 +39,7 @@
 #include "Pooling.hpp"
 #include "Options.hpp"
 
-class CYContext;
+struct CYContext;
 
 struct CYThing {
     virtual ~CYThing() {
@@ -98,6 +99,7 @@ struct CYPropertyName {
 };
 
 struct CYExpression;
+struct CYAssignment;
 
 enum CYNeeded {
     CYNever     = -1,
@@ -154,7 +156,6 @@ struct CYStatement :
     void Single(CYOutput &out, CYFlags flags) const;
     void Multiple(CYOutput &out, CYFlags flags = CYNoFlags) const;
 
-    virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Replace(CYContext &context) = 0;
 
   private:
@@ -312,15 +313,8 @@ struct CYIdentifierUsage {
 
 typedef std::vector<CYIdentifierUsage> CYIdentifierUsageVector;
 
-// XXX: strategy pattern, maybe subclass
-enum CYScopeType {
-    CYScopeCatch,
-    CYScopeFunction,
-    CYScopeProgram,
-};
-
 struct CYScope {
-    CYScopeType type_;
+    bool transparent_;
 
     CYContext &context_;
     CYStatement *&statements_;
@@ -330,7 +324,7 @@ struct CYScope {
     CYIdentifierAddressFlagsMap internal_;
     CYIdentifierValueSet identifiers_;
 
-    CYScope(CYScopeType type, CYContext &context, CYStatement *&statements);
+    CYScope(bool transparent, CYContext &context, CYStatement *&statements);
     virtual ~CYScope();
 
     void Close();
@@ -356,11 +350,14 @@ struct CYProgram :
 };
 
 struct CYNonLocal;
+struct CYThisScope;
 
 struct CYContext {
     CYOptions &options_;
 
     CYScope *scope_;
+    CYThisScope *this_;
+
     CYIdentifierUsageVector rename_;
 
     CYNonLocal *nonlocal_;
@@ -370,6 +367,7 @@ struct CYContext {
     CYContext(CYOptions &options) :
         options_(options),
         scope_(NULL),
+        this_(NULL),
         nonlocal_(NULL),
         nextlocal_(NULL),
         unique_(0)
@@ -420,6 +418,25 @@ struct CYNonLocal {
     }
 };
 
+struct CYThisScope :
+    CYNext<CYThisScope>
+{
+    CYIdentifier *identifier_;
+
+    CYThisScope() :
+        identifier_(NULL)
+    {
+    }
+
+    CYIdentifier *Identifier(CYContext &context) {
+        if (next_ != NULL)
+            return next_->Identifier(context);
+        if (identifier_ == NULL)
+            identifier_ = context.Unique();
+        return identifier_;
+    }
+};
+
 struct CYBlock :
     CYStatement,
     CYThing
@@ -436,7 +453,7 @@ struct CYBlock :
     }
 
     void AddPrev(CYStatement *statement) {
-        CYSetLast(statement, statements_);
+        CYSetLast(statement) = statements_;
         statements_ = statement;
     }
 
@@ -452,16 +469,44 @@ enum CYState {
     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:
-    CYState state_;
     void *scanner_;
 
-    const char *data_;
-    size_t size_;
-    FILE *file_;
+    CYState state_;
+    std::stack<bool> in_;
+
+    struct {
+        bool AtImplementation;
+        bool Function;
+        bool OpenBrace;
+    } no_;
+
+    std::istream &data_;
 
     bool strict_;
+    bool commented_;
 
     enum Condition {
         RegExpCondition,
@@ -514,7 +559,7 @@ class CYDriver {
     void ScannerDestroy();
 
   public:
-    CYDriver(const std::string &filename = "");
+    CYDriver(std::istream &data, const std::string &filename = "");
     ~CYDriver();
 
     Condition GetCondition();
@@ -530,8 +575,8 @@ 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 {
@@ -542,6 +587,9 @@ struct CYForInInitialiser {
     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;
@@ -560,7 +608,6 @@ struct CYExpression :
         return true;
     }
 
-    virtual void For(CYOutput &out) const;
     virtual void ForIn(CYOutput &out, CYFlags flags) const;
     virtual CYStatement *ForEachIn(CYContext &out, CYExpression *value);
 
@@ -574,6 +621,7 @@ struct CYExpression :
     virtual void ClassName(CYOutput &out, bool object) const;
 
     virtual CYExpression *Replace(CYContext &context) = 0;
+    virtual CYAssignment *Assignment(CYContext &context);
 
     virtual CYExpression *Primitive(CYContext &context) {
         return this;
@@ -619,7 +667,7 @@ struct CYCompound :
     }
 
     void AddPrev(CYExpression *expression) {
-        CYSetLast(expression, expressions_);
+        CYSetLast(expression) = expressions_;
         expressions_ = expression;
     }
 
@@ -627,43 +675,37 @@ struct CYCompound :
 
     virtual CYExpression *Replace(CYContext &context);
     void Output(CYOutput &out, CYFlags flags) const;
+
+    virtual CYExpression *Primitive(CYContext &context);
 };
 
+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 :
     CYNext<CYComprehension>,
     CYThing
 {
+    CYComprehension(CYComprehension *next = NULL) :
+        CYNext<CYComprehension>(next)
+    {
+    }
+
     virtual const char *Name() const = 0;
 
     virtual CYFunctionParameter *Parameter(CYContext &context) const = 0;
@@ -678,7 +720,8 @@ struct CYForInComprehension :
     CYIdentifier *name_;
     CYExpression *set_;
 
-    CYForInComprehension(CYIdentifier *name, CYExpression *set) :
+    CYForInComprehension(CYIdentifier *name, CYExpression *set, CYComprehension *next = NULL) :
+        CYComprehension(next),
         name_(name),
         set_(set)
     {
@@ -693,13 +736,14 @@ struct CYForInComprehension :
     virtual void Output(CYOutput &out) const;
 };
 
-struct CYForEachInComprehension :
+struct CYForOfComprehension :
     CYComprehension
 {
     CYIdentifier *name_;
     CYExpression *set_;
 
-    CYForEachInComprehension(CYIdentifier *name, CYExpression *set) :
+    CYForOfComprehension(CYIdentifier *name, CYExpression *set, CYComprehension *next = NULL) :
+        CYComprehension(next),
         name_(name),
         set_(set)
     {
@@ -1075,7 +1119,7 @@ struct CYArgument :
     {
     }
 
-    void Replace(CYContext &context);
+    CYArgument *Replace(CYContext &context);
     void Output(CYOutput &out) const;
 };
 
@@ -1169,15 +1213,16 @@ struct CYDeclaration :
     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 +1232,31 @@ 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 +1271,15 @@ 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)
     {
     }
 
@@ -1264,14 +1325,14 @@ struct CYForIn :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
-struct CYForEachIn :
+struct CYForOf :
     CYStatement
 {
     CYForInInitialiser *initialiser_;
     CYExpression *set_;
     CYStatement *code_;
 
-    CYForEachIn(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) :
+    CYForOf(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) :
         initialiser_(initialiser),
         set_(set),
         code_(code)
@@ -1311,8 +1372,6 @@ struct CYMember :
     void SetLeft(CYExpression *object) {
         object_ = object;
     }
-
-    void Replace_(CYContext &context);
 };
 
 struct CYDirectMember :
@@ -1471,7 +1530,9 @@ struct CYFunction {
     CYIdentifier *name_;
     CYFunctionParameter *parameters_;
     CYBlock code_;
+
     CYNonLocal *nonlocal_;
+    CYThisScope this_;
 
     CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
         name_(name),
@@ -1506,6 +1567,23 @@ struct CYFunctionExpression :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
+// XXX: this should derive from CYAnonymousFunction
+struct CYFatArrow :
+    CYFunction,
+    CYExpression
+{
+    CYFatArrow(CYFunctionParameter *parameters, CYStatement *statements) :
+        CYFunction(NULL, parameters, statements)
+    {
+    }
+
+    CYPrecedence(0)
+    CYRightHand(false)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
 // XXX: this should derive from CYAnonymousFunctionExpression
 struct CYRubyProc :
     CYFunctionExpression
@@ -1545,7 +1623,6 @@ struct CYExpress :
             throw;
     }
 
-    virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
@@ -1595,7 +1672,6 @@ struct CYReturn :
 struct CYEmpty :
     CYStatement
 {
-    virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
@@ -1699,6 +1775,17 @@ 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
 {