X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/320ce7537deb2d6f8a5db078d2d6aab1e1a77f8f..309b053540b80defe4313836161c68ea9112d56d:/Parser.hpp

diff --git a/Parser.hpp b/Parser.hpp
index 8f42bc3..f48e81b 100644
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -47,11 +47,17 @@
 
 #include <string>
 #include <vector>
+#include <map>
+#include <set>
 
+#include <cstdio>
 #include <cstdlib>
 
 #include "location.hh"
 #include "Pooling.hpp"
+#include "Options.hpp"
+
+class CYContext;
 
 template <typename Type_>
 struct CYNext {
@@ -81,6 +87,7 @@ struct CYThing {
 
 struct CYOutput {
     std::ostream &out_;
+    CYOptions &options_;
     bool pretty_;
     unsigned indent_;
     bool right_;
@@ -93,8 +100,9 @@ struct CYOutput {
         Terminated
     } mode_;
 
-    CYOutput(std::ostream &out) :
+    CYOutput(std::ostream &out, CYOptions &options) :
         out_(out),
+        options_(options),
         pretty_(false),
         indent_(0),
         right_(false),
@@ -147,22 +155,6 @@ enum CYFlags {
     CYNoBF =         (CYNoBrace | CYNoFunction),
 };
 
-struct CYContext {
-    apr_pool_t *pool_;
-
-    CYContext(apr_pool_t *pool) :
-        pool_(pool)
-    {
-    }
-
-    template <typename Type_>
-    void Replace(Type_ *&value) {
-        if (value != NULL)
-            while (Type_ *replace = value->Replace(*this))
-                value = replace;
-    }
-};
-
 struct CYStatement :
     CYNext<CYStatement>
 {
@@ -173,6 +165,7 @@ struct CYStatement :
     void Multiple(CYOutput &out, CYFlags flags = CYNoFlags) const;
 
     CYStatement *ReplaceAll(CYContext &context);
+    virtual CYStatement *Collapse(CYContext &context);
 
     virtual CYStatement *Replace(CYContext &context) = 0;
 
@@ -229,10 +222,11 @@ struct CYWord :
     {
     }
 
-    const char *Value() const {
-        return word_;
+    void Set(const char *value) {
+        word_ = value;
     }
 
+    virtual const char *Word() const;
     virtual void Output(CYOutput &out) const;
 
     virtual CYExpression *ClassName(CYContext &context, bool object);
@@ -241,16 +235,28 @@ struct CYWord :
 };
 
 _finline std::ostream &operator <<(std::ostream &lhs, const CYWord &rhs) {
-    return lhs << rhs.Value();
+    lhs << &rhs << '=';
+    return lhs << rhs.Word();
 }
 
 struct CYIdentifier :
+    CYNext<CYIdentifier>,
     CYWord
 {
+    CYIdentifier *replace_;
+    size_t offset_;
+    size_t usage_;
+
     CYIdentifier(const char *word) :
-        CYWord(word)
+        CYWord(word),
+        replace_(NULL),
+        offset_(0),
+        usage_(0)
     {
     }
+
+    virtual const char *Word() const;
+    CYIdentifier *Replace(CYContext &context);
 };
 
 struct CYComment :
@@ -283,6 +289,60 @@ struct CYLabel :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
+struct CYCStringLess :
+    std::binary_function<const char *, const char *, bool>
+{
+    _finline bool operator ()(const char *lhs, const char *rhs) const {
+        return strcmp(lhs, rhs) < 0;
+    }
+};
+
+struct CYIdentifierValueLess :
+    std::binary_function<CYIdentifier *, CYIdentifier *, bool>
+{
+    _finline bool operator ()(CYIdentifier *lhs, CYIdentifier *rhs) const {
+        return CYCStringLess()(lhs->Word(), rhs->Word());
+    }
+};
+
+enum CYIdentifierFlags {
+    CYIdentifierArgument,
+    CYIdentifierVariable,
+    CYIdentifierOther,
+    CYIdentifierMagic,
+};
+
+typedef std::set<const char *, CYCStringLess> CYCStringSet;
+typedef std::set<CYIdentifier *, CYIdentifierValueLess> CYIdentifierValueSet;
+typedef std::map<CYIdentifier *, CYIdentifierFlags> CYIdentifierAddressFlagsMap;
+
+struct CYIdentifierUsage {
+    CYIdentifier *identifier_;
+    size_t usage_;
+};
+
+typedef std::vector<CYIdentifierUsage> CYIdentifierUsageVector;
+
+struct CYScope {
+    CYScope *parent_;
+
+    CYIdentifierAddressFlagsMap internal_;
+    CYIdentifierValueSet identifiers_;
+
+    CYScope() :
+        parent_(NULL)
+    {
+    }
+
+    virtual ~CYScope() {
+    }
+
+    void Declare(CYContext &context, CYIdentifier *identifier, CYIdentifierFlags flags);
+    virtual CYIdentifier *Lookup(CYContext &context, CYIdentifier *identifier);
+    void Merge(CYContext &context, CYIdentifier *identifier);
+    void Scope(CYContext &context, CYStatement *&statements);
+};
+
 struct CYProgram :
     CYThing
 {
@@ -294,10 +354,38 @@ struct CYProgram :
     }
 
     virtual void Replace(CYContext &context);
-
     virtual void Output(CYOutput &out) const;
 };
 
+struct CYContext {
+    apr_pool_t *pool_;
+    CYOptions &options_;
+    CYScope *scope_;
+    CYIdentifierUsageVector rename_;
+
+    CYContext(apr_pool_t *pool, CYOptions &options) :
+        pool_(pool),
+        options_(options),
+        scope_(NULL)
+    {
+    }
+
+    virtual ~CYContext() {
+    }
+
+    template <typename Type_>
+    void Replace(Type_ *&value) {
+        for (;;) if (value == NULL)
+            break;
+        else {
+            Type_ *replace(value->Replace(*this));
+            if (replace != value)
+                value = replace;
+            else break;
+        }
+    }
+};
+
 struct CYBlock :
     CYStatement,
     CYThing
@@ -313,6 +401,14 @@ struct CYBlock :
         return statements_;
     }
 
+    void AddPrev(CYStatement *statement) {
+        CYStatement *last(statement);
+        while (last->next_ != NULL)
+            last = last->next_;
+        last->SetNext(statements_);
+        statements_ = statement;
+    }
+
     virtual CYStatement *Replace(CYContext &context);
 
     virtual void Output(CYOutput &out) const;
@@ -379,6 +475,7 @@ struct CYForInitialiser {
     }
 
     virtual void For(CYOutput &out) const = 0;
+    virtual CYExpression *Replace(CYContext &context) = 0;
 };
 
 struct CYForInInitialiser {
@@ -388,6 +485,7 @@ struct CYForInInitialiser {
     virtual void ForIn(CYOutput &out, CYFlags flags) const = 0;
     virtual const char *ForEachIn() const = 0;
     virtual CYExpression *ForEachIn(CYContext &out) = 0;
+    virtual CYExpression *Replace(CYContext &context) = 0;
 };
 
 struct CYNumber;
@@ -460,7 +558,7 @@ struct CYCompound :
 {
     CYExpression *expressions_;
 
-    CYCompound(CYExpression *expressions) :
+    CYCompound(CYExpression *expressions = NULL) :
         expressions_(expressions)
     {
     }
@@ -491,6 +589,7 @@ struct CYFunctionParameter :
     {
     }
 
+    void Replace(CYContext &context);
     virtual void Output(CYOutput &out) const;
 };
 
@@ -519,7 +618,7 @@ struct CYForInComprehension :
     }
 
     virtual const char *Name() const {
-        return name_->Value();
+        return name_->Word();
     }
 
     virtual CYFunctionParameter *Parameter(CYContext &context) const;
@@ -540,7 +639,7 @@ struct CYForEachInComprehension :
     }
 
     virtual const char *Name() const {
-        return name_->Value();
+        return name_->Word();
     }
 
     virtual CYFunctionParameter *Parameter(CYContext &context) const;
@@ -655,7 +754,7 @@ struct CYString :
     }
 
     CYString(const CYWord *word) :
-        value_(word->Value()),
+        value_(word->Word()),
         size_(strlen(value_))
     {
     }
@@ -999,15 +1098,16 @@ struct CYDeclaration :
     virtual const char *ForEachIn() const;
     virtual CYExpression *ForEachIn(CYContext &out);
 
-    void Replace(CYContext &context);
+    virtual CYExpression *Replace(CYContext &context);
+    virtual CYAssignment *Assignment(CYContext &context);
 
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
 struct CYDeclarations :
     CYNext<CYDeclarations>,
-    CYForInitialiser,
-    CYThing
+    CYThing,
+    CYForInitialiser
 {
     CYDeclaration *declaration_;
 
@@ -1019,7 +1119,7 @@ struct CYDeclarations :
 
     virtual void For(CYOutput &out) const;
 
-    void Replace(CYContext &context);
+    virtual CYCompound *Replace(CYContext &context);
     CYProperty *Property(CYContext &context);
 
     virtual void Output(CYOutput &out) const;
@@ -1281,7 +1381,8 @@ struct CYFunction {
     virtual ~CYFunction() {
     }
 
-    virtual void Replace_(CYContext &context);
+    void Inject(CYContext &context);
+    virtual void Replace_(CYContext &context, bool outer);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
@@ -1322,8 +1423,11 @@ struct CYExpress :
     CYExpress(CYExpression *expression) :
         expression_(expression)
     {
+        if (expression == NULL)
+            throw;
     }
 
+    virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
@@ -1373,6 +1477,7 @@ struct CYReturn :
 struct CYEmpty :
     CYStatement
 {
+    virtual CYStatement *Collapse(CYContext &context);
     virtual CYStatement *Replace(CYContext &context);
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };