X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/c252950279eadefe8cd5ceb41f0eaa0d20153a56..b6ace22552e41cb05d69eb0325a91dc0b7aa1d40:/Parser.hpp

diff --git a/Parser.hpp b/Parser.hpp
index c53d132..2102091 100644
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -1,20 +1,20 @@
 /* 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/>.
 **/
 /* }}} */
@@ -24,7 +24,6 @@
 
 #include <iostream>
 
-#include <stack>
 #include <string>
 #include <vector>
 #include <map>
@@ -33,13 +32,11 @@
 #include <cstdio>
 #include <cstdlib>
 
-#include "location.hh"
-
 #include "List.hpp"
 #include "Pooling.hpp"
 #include "Options.hpp"
 
-class CYContext;
+struct CYContext;
 
 struct CYThing {
     virtual ~CYThing() {
@@ -350,11 +347,14 @@ struct CYProgram :
 };
 
 struct CYNonLocal;
+struct CYThisScope;
 
 struct CYContext {
     CYOptions &options_;
 
     CYScope *scope_;
+    CYThisScope *this_;
+
     CYIdentifierUsageVector rename_;
 
     CYNonLocal *nonlocal_;
@@ -364,6 +364,7 @@ struct CYContext {
     CYContext(CYOptions &options) :
         options_(options),
         scope_(NULL),
+        this_(NULL),
         nonlocal_(NULL),
         nextlocal_(NULL),
         unique_(0)
@@ -414,6 +415,25 @@ 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
@@ -430,7 +450,7 @@ struct CYBlock :
     }
 
     void AddPrev(CYStatement *statement) {
-        CYSetLast(statement, statements_);
+        CYSetLast(statement) = statements_;
         statements_ = statement;
     }
 
@@ -440,87 +460,25 @@ struct CYBlock :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
-enum CYState {
-    CYClear,
-    CYRestricted,
-    CYNewLine
-};
-
-class CYDriver {
-  public:
-    void *scanner_;
-
-    CYState state_;
-    bool nobrace_;
-    std::stack<bool> in_;
-
-    const char *data_;
-    size_t size_;
-    FILE *file_;
-
-    bool strict_;
-
-    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_;
-
+class CYStream :
+    public std::istream
+{
   private:
-    void ScannerInit();
-    void ScannerDestroy();
+    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:
-    CYDriver(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);
+    CYStream(const char *start, const char *end) :
+        std::istream(&buffer_),
+        buffer_(start, end)
+    {
+    }
 };
 
 struct CYForInitialiser {
@@ -619,7 +577,7 @@ struct CYCompound :
     }
 
     void AddPrev(CYExpression *expression) {
-        CYSetLast(expression, expressions_);
+        CYSetLast(expression) = expressions_;
         expressions_ = expression;
     }
 
@@ -1482,7 +1440,9 @@ struct CYFunction {
     CYIdentifier *name_;
     CYFunctionParameter *parameters_;
     CYBlock code_;
+
     CYNonLocal *nonlocal_;
+    CYThisScope this_;
 
     CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
         name_(name),
@@ -1517,6 +1477,23 @@ 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