Cycript's lexer does not need to be "interactive".

[cycript.git] / Parser.hpp

diff --git a/Parser.hpp b/Parser.hpp
index e120123696694e0d0fcfe243452b6cc2ac0cc92e..fab18af4d6c3f6d09ed7494a5683f10fe447de3b 100644 (file)
--- a/Parser.hpp
+++ b/Parser.hpp
@@ -460,27 +460,6 @@ struct CYBlock :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
-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)
-    {
-    }
-};
-
 struct CYForInitialiser {
     virtual ~CYForInitialiser() {
     }
@@ -506,13 +485,12 @@ struct CYNumber;
 struct CYString;
 
 struct CYExpression :
-    CYNext<CYExpression>,
     CYForInitialiser,
     CYForInInitialiser,
     CYClassName,
     CYThing
 {
-    virtual unsigned Precedence() const = 0;
+    virtual int Precedence() const = 0;
 
     virtual bool RightHand() const {
         return true;
@@ -525,7 +503,7 @@ struct CYExpression :
 
     virtual void Output(CYOutput &out) const;
     virtual void Output(CYOutput &out, CYFlags flags) const = 0;
-    void Output(CYOutput &out, unsigned precedence, CYFlags flags) const;
+    void Output(CYOutput &out, int precedence, CYFlags flags) const;
 
     virtual CYExpression *ClassName(CYContext &context, bool object);
     virtual void ClassName(CYOutput &out, bool object) const;
@@ -534,7 +512,7 @@ struct CYExpression :
     virtual CYAssignment *Assignment(CYContext &context);
 
     virtual CYExpression *Primitive(CYContext &context) {
-        return this;
+        return NULL;
     }
 
     virtual CYNumber *Number(CYContext &context) {
@@ -556,8 +534,8 @@ struct CYExpression :
     }
 
 #define CYPrecedence(value) \
-    static const unsigned Precedence_ = value; \
-    virtual unsigned Precedence() const { \
+    static const int Precedence_ = value; \
+    virtual int Precedence() const { \
         return Precedence_; \
     }
 
@@ -569,16 +547,16 @@ struct CYExpression :
 struct CYCompound :
     CYExpression
 {
-    CYExpression *expressions_;
+    CYExpression *expression_;
+    CYExpression *next_;
 
-    CYCompound(CYExpression *expressions = NULL) :
-        expressions_(expressions)
+    CYCompound(CYExpression *expression, CYExpression *next = NULL) :
+        expression_(expression),
+        next_(next)
     {
-    }
-
-    void AddPrev(CYExpression *expression) {
-        CYSetLast(expression) = expressions_;
-        expressions_ = expression;
+        if (expression_ == NULL)
+            throw;
+        _assert(expression_ != NULL);
     }
 
     CYPrecedence(17)
@@ -616,6 +594,11 @@ struct CYComprehension :
     {
     }
 
+    CYComprehension *Modify(CYComprehension *next) {
+        next_ = next;
+        return this;
+    }
+
     virtual const char *Name() const = 0;
 
     virtual CYFunctionParameter *Parameter(CYContext &context) const = 0;
@@ -673,7 +656,8 @@ struct CYIfComprehension :
 {
     CYExpression *test_;
 
-    CYIfComprehension(CYExpression *test) :
+    CYIfComprehension(CYExpression *test, CYComprehension *next = NULL) :
+        CYComprehension(next),
         test_(test)
     {
     }
@@ -710,6 +694,10 @@ struct CYLiteral :
 {
     CYPrecedence(0)
     CYRightHand(false)
+
+    virtual CYExpression *Primitive(CYContext &context) {
+        return this;
+    }
 };
 
 struct CYTrivial :
@@ -1329,7 +1317,7 @@ struct New :
     {
     }
 
-    virtual unsigned Precedence() const {
+    virtual int Precedence() const {
         return arguments_ == NULL ? 2 : 1;
     }
 
@@ -1529,7 +1517,7 @@ struct CYExpress :
     CYExpress(CYExpression *expression) :
         expression_(expression)
     {
-        if (expression == NULL)
+        if (expression_ == NULL)
             throw;
     }
 
@@ -1600,6 +1588,107 @@ struct CYFinally :
     virtual void Output(CYOutput &out) const;
 };
 
+struct CYTypeSpecifier :
+    CYThing
+{
+    virtual CYExpression *Replace(CYContext &context) = 0;
+};
+
+struct CYTypeError :
+    CYTypeSpecifier
+{
+    CYTypeError() {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeVoid :
+    CYTypeSpecifier
+{
+    CYTypeVoid() {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeVariable :
+    CYTypeSpecifier
+{
+    CYIdentifier *name_;
+
+    CYTypeVariable(CYIdentifier *name) :
+        name_(name)
+    {
+    }
+
+    CYTypeVariable(const char *name) :
+        name_(new($pool) CYIdentifier(name))
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeUnsigned :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeUnsigned(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeSigned :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeSigned(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeLong :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeLong(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYTypeShort :
+    CYTypeSpecifier
+{
+    CYTypeSpecifier *specifier_;
+
+    CYTypeShort(CYTypeSpecifier *specifier) :
+        specifier_(specifier)
+    {
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
 struct CYTypeModifier :
     CYNext<CYTypeModifier>
 {
@@ -1608,7 +1697,13 @@ struct CYTypeModifier :
     {
     }
 
-    virtual CYExpression *Replace(CYContext &context) = 0;
+    virtual int Precedence() const = 0;
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type) = 0;
+    CYExpression *Replace(CYContext &context, CYExpression *type);
+
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const = 0;
+    void Output(CYOutput &out, int precedence, CYIdentifier *identifier) const;
 };
 
 struct CYTypeArrayOf :
@@ -1622,9 +1717,10 @@ struct CYTypeArrayOf :
     {
     }
 
-    CYPrecedence(2)
+    CYPrecedence(1)
 
-    virtual CYExpression *Replace(CYContext &context);
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
 };
 
 struct CYTypeConstant :
@@ -1635,9 +1731,10 @@ struct CYTypeConstant :
     {
     }
 
-    CYPrecedence(3)
+    CYPrecedence(0)
 
-    virtual CYExpression *Replace(CYContext &context);
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
 };
 
 struct CYTypePointerTo :
@@ -1648,42 +1745,76 @@ struct CYTypePointerTo :
     {
     }
 
-    CYPrecedence(3)
+    CYPrecedence(0)
 
-    virtual CYExpression *Replace(CYContext &context);
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
 };
 
-struct CYTypeVariable :
+struct CYTypeVolatile :
     CYTypeModifier
 {
-    CYExpression *expression_;
-
-    CYTypeVariable(CYExpression *expression) :
-        CYTypeModifier(NULL),
-        expression_(expression)
+    CYTypeVolatile(CYTypeModifier *next = NULL) :
+        CYTypeModifier(next)
     {
     }
 
-    CYPrecedence(1)
+    CYPrecedence(0)
 
-    virtual CYExpression *Replace(CYContext &context);
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
 };
 
 struct CYTypedIdentifier :
-    CYNext<CYTypedIdentifier>
+    CYNext<CYTypedIdentifier>,
+    CYThing
 {
     CYIdentifier *identifier_;
-    CYTypeModifier *type_;
+    CYTypeSpecifier *specifier_;
+    CYTypeModifier *modifier_;
 
-    CYTypedIdentifier(CYIdentifier *identifier) :
+    CYTypedIdentifier(CYIdentifier *identifier = NULL) :
         identifier_(identifier),
-        type_(NULL)
+        specifier_(NULL),
+        modifier_(NULL)
+    {
+    }
+
+    CYTypedIdentifier(CYTypeSpecifier *specifier, CYTypeModifier *modifier = NULL) :
+        identifier_(NULL),
+        specifier_(specifier),
+        modifier_(modifier)
     {
     }
+
+    inline CYTypedIdentifier *Modify(CYTypeModifier *modifier) {
+        CYSetLast(modifier_) = modifier;
+        return this;
+    }
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out) const;
+};
+
+struct CYEncodedType :
+    CYExpression
+{
+    CYTypedIdentifier *typed_;
+
+    CYEncodedType(CYTypedIdentifier *typed) :
+        typed_(typed)
+    {
+    }
+
+    CYPrecedence(1)
+
+    virtual CYExpression *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
 struct CYTypedParameter :
-    CYNext<CYTypedParameter>
+    CYNext<CYTypedParameter>,
+    CYThing
 {
     CYTypedIdentifier *typed_;
 
@@ -1693,19 +1824,22 @@ struct CYTypedParameter :
     {
     }
 
+    CYArgument *Argument(CYContext &context);
     CYFunctionParameter *Parameters(CYContext &context);
     CYExpression *TypeSignature(CYContext &context, CYExpression *prefix);
+
+    virtual void Output(CYOutput &out) const;
 };
 
 struct CYLambda :
     CYExpression
 {
-    CYTypeModifier *type_;
+    CYTypedIdentifier *typed_;
     CYTypedParameter *parameters_;
     CYStatement *statements_;
 
-    CYLambda(CYTypeModifier *type, CYTypedParameter *parameters, CYStatement *statements) :
-        type_(type),
+    CYLambda(CYTypedIdentifier *typed, CYTypedParameter *parameters, CYStatement *statements) :
+        typed_(typed),
         parameters_(parameters),
         statements_(statements)
     {
@@ -1717,6 +1851,54 @@ struct CYLambda :
     virtual void Output(CYOutput &out, CYFlags flags) const;
 };
 
+struct CYTypeDefinition :
+    CYStatement
+{
+    CYTypedIdentifier *typed_;
+
+    CYTypeDefinition(CYTypedIdentifier *typed) :
+        typed_(typed)
+    {
+    }
+
+    virtual CYStatement *Replace(CYContext &context);
+    virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+struct CYTypeBlockWith :
+    CYTypeModifier
+{
+    CYTypedParameter *parameters_;
+
+    CYTypeBlockWith(CYTypedParameter *parameters, CYTypeModifier *next = NULL) :
+        CYTypeModifier(next),
+        parameters_(parameters)
+    {
+    }
+
+    CYPrecedence(0)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+
+struct CYTypeFunctionWith :
+    CYTypeModifier
+{
+    CYTypedParameter *parameters_;
+
+    CYTypeFunctionWith(CYTypedParameter *parameters, CYTypeModifier *next = NULL) :
+        CYTypeModifier(next),
+        parameters_(parameters)
+    {
+    }
+
+    CYPrecedence(1)
+
+    virtual CYExpression *Replace_(CYContext &context, CYExpression *type);
+    virtual void Output(CYOutput &out, CYIdentifier *identifier) const;
+};
+
 namespace cy {
 namespace Syntax {
 
@@ -1944,7 +2126,7 @@ CYPrefix_(false, "-", Negate)
 CYPrefix_(false, "~", BitwiseNot)
 CYPrefix_(false, "!", LogicalNot)
 
-CYInfix_(false, 5, "*", Multiply)
+CYInfix_(false, 5, "*", Multiply, CYReplace)
 CYInfix_(false, 5, "/", Divide)
 CYInfix_(false, 5, "%", Modulus)
 CYInfix_(false, 6, "+", Add, CYReplace)