X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/d35a3b07965ee394c89615d9648c45face9f7f07..9e562cfcfa97bb3140f16dd485e9c67d841a3132:/Parser.hpp diff --git a/Parser.hpp b/Parser.hpp index 7de6b02..fc5abf1 100644 --- a/Parser.hpp +++ b/Parser.hpp @@ -1,3 +1,42 @@ +/* Cycript - Remove Execution Server and Disassembler + * Copyright (C) 2009 Jay Freeman (saurik) +*/ + +/* Modified BSD License {{{ */ +/* + * Redistribution and use in source and binary + * forms, with or without modification, are permitted + * provided that the following conditions are met: + * + * 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. + * + * 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. +*/ +/* }}} */ + #ifndef CYPARSER_HPP #define CYPARSER_HPP @@ -36,26 +75,31 @@ _finline std::ostream &operator <<(std::ostream &out, const CYThing &rhs) { return out; } -struct CYPart { - virtual void Part(std::ostream &out) const = 0; -}; - struct CYSource : CYNext { + virtual bool IsBlock() const { + return next_ != NULL; + } + virtual void Show(std::ostream &out) const; virtual void Output(std::ostream &out) const = 0; virtual void Output(std::ostream &out, bool block) const; + virtual void Output_(std::ostream &out) const; }; -struct CYName : - CYThing -{ - virtual const char *Name() const = 0; +struct CYPropertyName { + virtual void PropertyName(std::ostream &out) const = 0; +}; + +struct CYClassName { + virtual void ClassName(std::ostream &out) const = 0; }; struct CYWord : - CYName + CYThing, + CYPropertyName, + CYClassName { const char *word_; @@ -68,11 +112,10 @@ struct CYWord : return word_; } - virtual const char *Name() const { - return Value(); - } - virtual void Output(std::ostream &out) const; + + virtual void ClassName(std::ostream &out) const; + virtual void PropertyName(std::ostream &out) const; }; struct CYIdentifier : @@ -87,11 +130,11 @@ struct CYIdentifier : struct CYLabel : CYNext { - CYIdentifier *identifier_; + CYIdentifier *name_; - CYLabel(CYIdentifier *identifier, CYLabel *next) : + CYLabel(CYIdentifier *name, CYLabel *next) : CYNext(next), - identifier_(identifier) + name_(name) { } }; @@ -99,11 +142,35 @@ struct CYLabel : struct CYStatement : CYSource { - CYLabel *label_; + CYLabel *labels_; + + CYStatement() : + labels_(NULL) + { + } void AddLabel(CYIdentifier *identifier) { - label_ = new CYLabel(identifier, label_); + labels_ = new CYLabel(identifier, labels_); + } + + virtual void Output_(std::ostream &out) const; +}; + +struct CYBlock : + CYStatement +{ + CYStatement *statements_; + + CYBlock(CYStatement *statements) : + statements_(statements) + { } + + virtual bool IsBlock() const { + return true; + } + + virtual void Output(std::ostream &out) const; }; enum CYState { @@ -121,6 +188,7 @@ class CYDriver { const char *data_; size_t size_; + FILE *file_; std::string filename_; @@ -143,6 +211,10 @@ class CYDriver { ~CYDriver(); }; +struct CYPart { + virtual void Part(std::ostream &out) const = 0; +}; + struct CYForInitialiser : CYPart { @@ -153,17 +225,39 @@ struct CYForInInitialiser : { }; +enum CYFlags { + CYNoFlags = 0, + CYNoBrace = (1 << 0), + CYNoFunction = (1 << 1), + CYNoLeader = (1 << 2), + CYNoTrailer = (1 << 3), + CYNoIn = (1 << 4), + CYNoHyphen = (1 << 5), +}; + struct CYExpression : CYNext, CYForInitialiser, - CYForInInitialiser + CYForInInitialiser, + CYClassName { virtual unsigned Precedence() const = 0; virtual void Part(std::ostream &out) const; - virtual void Output(std::ostream &out) const = 0; - void Output(std::ostream &out, unsigned precedence) const; + virtual void Output(std::ostream &out, CYFlags flags) const = 0; + void Output(std::ostream &out, unsigned precedence, CYFlags flags) const; + + virtual void ClassName(std::ostream &out) const; + + virtual const char *Word() const { + return NULL; + } }; +#define CYAlphabetic(value) \ + virtual bool Alphabetic() const { \ + return value; \ + } + #define CYPrecedence(value) \ virtual unsigned Precedence() const { \ return value; \ @@ -189,7 +283,7 @@ struct CYCompound : CYPrecedence(17) - void Output(std::ostream &out) const; + void Output(std::ostream &out, CYFlags flags) const; }; struct CYLiteral : @@ -198,6 +292,12 @@ struct CYLiteral : CYPrecedence(0) }; +struct CYMagic : + CYExpression +{ + CYPrecedence(0) +}; + struct CYSelectorPart : CYNext { @@ -224,12 +324,38 @@ struct CYSelector : { } - virtual void Output(std::ostream &out) const; + CYPrecedence(1) + + virtual void Output(std::ostream &out, CYFlags flags) const; +}; + +struct CYRange { + uint64_t lo_; + uint64_t hi_; + + CYRange(uint64_t lo, uint64_t hi) : + lo_(lo), hi_(hi) + { + } + + bool operator [](uint8_t value) const { + return !(value >> 7) && (value >> 6 ? hi_ : lo_) >> (value & 0x3f) & 0x1; + } + + void operator()(uint8_t value) { + if (value >> 7) + return; + (value >> 6 ? hi_ : lo_) |= uint64_t(0x1) << (value & 0x3f); + } }; +extern CYRange DigitRange_; +extern CYRange WordStartRange_; +extern CYRange WordEndRange_; + struct CYString : CYLiteral, - CYName + CYPropertyName { const char *value_; size_t size_; @@ -250,16 +376,26 @@ struct CYString : return value_; } - virtual const char *Name() const { + virtual const char *Word() const { + if (size_ == 0 || !WordStartRange_[value_[0]]) + return NULL; + for (size_t i(1); i != size_; ++i) + if (!WordEndRange_[value_[i]]) + return NULL; return Value(); } - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out) const { + return Output(out, CYNoFlags); + } + + virtual void Output(std::ostream &out, CYFlags flags) const; + virtual void PropertyName(std::ostream &out) const; }; struct CYNumber : CYLiteral, - CYName + CYPropertyName { double value_; @@ -272,11 +408,12 @@ struct CYNumber : return value_; } - virtual const char *Name() const { - throw; + virtual void Output(std::ostream &out) const { + return Output(out, CYNoFlags); } - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; + virtual void PropertyName(std::ostream &out) const; }; struct CYNull : @@ -288,28 +425,26 @@ struct CYNull : { } - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYThis : CYWord, - CYExpression + CYMagic { CYThis() : CYWord("this") { } - CYPrecedence(0) - - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYBoolean : CYLiteral { virtual bool Value() const = 0; - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYFalse : @@ -321,9 +456,7 @@ struct CYFalse : { } - virtual bool Value() const { - return false; - } + virtual bool Value() const; }; struct CYTrue : @@ -335,9 +468,7 @@ struct CYTrue : { } - virtual bool Value() const { - return true; - } + virtual bool Value() const; }; struct CYVariable : @@ -352,7 +483,7 @@ struct CYVariable : CYPrecedence(0) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYPrefix : @@ -365,9 +496,10 @@ struct CYPrefix : { } + virtual bool Alphabetic() const = 0; virtual const char *Operator() const = 0; - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYInfix : @@ -382,9 +514,14 @@ struct CYInfix : { } + void SetLeft(CYExpression *lhs) { + lhs_ = lhs; + } + + virtual bool Alphabetic() const = 0; virtual const char *Operator() const = 0; - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYPostfix : @@ -399,7 +536,7 @@ struct CYPostfix : virtual const char *Operator() const = 0; - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYAssignment : @@ -414,9 +551,13 @@ struct CYAssignment : { } + void SetLeft(CYExpression *lhs) { + lhs_ = lhs; + } + virtual const char *Operator() const = 0; - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYArgument : @@ -484,7 +625,7 @@ struct CYArray : { } - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYDeclaration : @@ -521,14 +662,88 @@ struct CYDeclarations : virtual void Output(std::ostream &out) const; }; -struct CYParameter : - CYNext, +struct CYField : + CYNext +{ + virtual void Output(std::ostream &out) const; +}; + +struct CYMessageParameter : + CYNext +{ + CYWord *tag_; + CYExpression *type_; + CYIdentifier *name_; + + CYMessageParameter(CYWord *tag, CYExpression *type, CYIdentifier *name) : + tag_(tag), + type_(type), + name_(name) + { + } +}; + +struct CYMessage : + CYNext +{ + bool instance_; + CYExpression *type_; + CYMessageParameter *parameter_; + CYSource *body_; + + CYMessage(bool instance, CYExpression *type, CYMessageParameter *parameter, CYSource *body) : + instance_(instance), + type_(type), + parameter_(parameter), + body_(body) + { + } + + virtual void Output(std::ostream &out, bool replace) const; +}; + +struct CYClass : + CYSource +{ + CYIdentifier *name_; + CYExpression *super_; + CYField *fields_; + CYMessage *messages_; + + CYClass(CYIdentifier *name, CYExpression *super, CYField *fields, CYMessage *messages) : + name_(name), + super_(super), + fields_(fields), + messages_(messages) + { + } + + virtual void Output(std::ostream &out) const; +}; + +struct CYCategory : + CYSource +{ + CYClassName *name_; + CYMessage *messages_; + + CYCategory(CYClassName *name, CYMessage *messages) : + name_(name), + messages_(messages) + { + } + + virtual void Output(std::ostream &out) const; +}; + +struct CYFunctionParameter : + CYNext, CYThing { CYIdentifier *name_; - CYParameter(CYIdentifier *name, CYParameter *next) : - CYNext(next), + CYFunctionParameter(CYIdentifier *name, CYFunctionParameter *next) : + CYNext(next), name_(name) { } @@ -575,10 +790,10 @@ struct CYForIn : struct CYProperty : CYNext { - CYName *name_; + CYPropertyName *name_; CYExpression *value_; - CYProperty(CYName *name, CYExpression *value, CYProperty *next) : + CYProperty(CYPropertyName *name, CYExpression *value, CYProperty *next) : CYNext(next), name_(name), value_(value) @@ -598,7 +813,7 @@ struct CYObject : { } - void Output(std::ostream &out) const; + void Output(std::ostream &out, CYFlags flags) const; }; struct CYCatch : @@ -616,13 +831,13 @@ struct CYCatch : virtual void Output(std::ostream &out) const; }; -struct CYMessage : +struct CYSend : CYExpression { CYExpression *self_; CYArgument *arguments_; - CYMessage(CYExpression *self, CYArgument *arguments) : + CYSend(CYExpression *self, CYArgument *arguments) : self_(self), arguments_(arguments) { @@ -630,7 +845,7 @@ struct CYMessage : CYPrecedence(0) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYMember : @@ -645,9 +860,35 @@ struct CYMember : { } + void SetLeft(CYExpression *object) { + object_ = object; + } +}; + +struct CYDirectMember : + CYMember +{ + CYDirectMember(CYExpression *object, CYExpression *property) : + CYMember(object, property) + { + } + CYPrecedence(1) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; +}; + +struct CYIndirectMember : + CYMember +{ + CYIndirectMember(CYExpression *object, CYExpression *property) : + CYMember(object, property) + { + } + + CYPrecedence(1) + + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYNew : @@ -664,7 +905,7 @@ struct CYNew : CYPrecedence(1) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYCall : @@ -681,7 +922,7 @@ struct CYCall : CYPrecedence(2) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYIf : @@ -735,10 +976,10 @@ struct CYLambda : CYExpression { CYIdentifier *name_; - CYParameter *parameters_; + CYFunctionParameter *parameters_; CYSource *body_; - CYLambda(CYIdentifier *name, CYParameter *parameters, CYSource *body) : + CYLambda(CYIdentifier *name, CYFunctionParameter *parameters, CYSource *body) : name_(name), parameters_(parameters), body_(body) @@ -747,14 +988,14 @@ struct CYLambda : CYPrecedence(0) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYFunction : CYLambda, CYSource { - CYFunction(CYIdentifier *name, CYParameter *parameters, CYSource *body) : + CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYSource *body) : CYLambda(name, parameters, body) { } @@ -889,6 +1130,7 @@ struct CYCondition : CYExpression *false_; CYCondition(CYExpression *test, CYExpression *_true, CYExpression *_false) : + test_(test), true_(_true), false_(_false) { @@ -896,7 +1138,7 @@ struct CYCondition : CYPrecedence(15) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYAddressOf : @@ -911,9 +1153,10 @@ struct CYAddressOf : return "&"; } + CYAlphabetic(false) CYPrecedence(2) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; struct CYIndirect : @@ -928,9 +1171,10 @@ struct CYIndirect : return "*"; } + CYAlphabetic(false) CYPrecedence(1) - virtual void Output(std::ostream &out) const; + virtual void Output(std::ostream &out, CYFlags flags) const; }; #define CYPostfix_(op, name) \ @@ -949,7 +1193,7 @@ struct CYIndirect : } \ }; -#define CYPrefix_(op, name) \ +#define CYPrefix_(alphabetic, op, name) \ struct CY ## name : \ CYPrefix \ { \ @@ -958,6 +1202,7 @@ struct CYIndirect : { \ } \ \ + CYAlphabetic(alphabetic) \ CYPrecedence(4) \ \ virtual const char *Operator() const { \ @@ -965,7 +1210,7 @@ struct CYIndirect : } \ }; -#define CYInfix_(precedence, op, name) \ +#define CYInfix_(alphabetic, precedence, op, name) \ struct CY ## name : \ CYInfix \ { \ @@ -974,6 +1219,7 @@ struct CYIndirect : { \ } \ \ + CYAlphabetic(alphabetic) \ CYPrecedence(precedence) \ \ virtual const char *Operator() const { \ @@ -1000,38 +1246,38 @@ struct CYIndirect : CYPostfix_("++", PostIncrement) CYPostfix_("--", PostDecrement) -CYPrefix_("delete", Delete) -CYPrefix_("void", Void) -CYPrefix_("typeof", TypeOf) -CYPrefix_("++", PreIncrement) -CYPrefix_("--", PreDecrement) -CYPrefix_("-", Negate) -CYPrefix_("~", BitwiseNot) -CYPrefix_("!", LogicalNot) - -CYInfix_(5, "*", Multiply) -CYInfix_(5, "/", Divide) -CYInfix_(5, "%", Modulus) -CYInfix_(6, "+", Add) -CYInfix_(6, "-", Subtract) -CYInfix_(7, "<<", ShiftLeft) -CYInfix_(7, ">>", ShiftRightSigned) -CYInfix_(7, ">>>", ShiftRightUnsigned) -CYInfix_(8, "<", Less) -CYInfix_(8, ">", Greater) -CYInfix_(8, "<=", LessOrEqual) -CYInfix_(8, ">=", GreaterOrEqual) -CYInfix_(8, "instanceof", InstanceOf) -CYInfix_(8, "in", In) -CYInfix_(9, "==", Equal) -CYInfix_(9, "!=", NotEqual) -CYInfix_(9, "===", Identical) -CYInfix_(9, "!==", NotIdentical) -CYInfix_(10, "&", BitwiseAnd) -CYInfix_(11, "^", BitwiseXOr) -CYInfix_(12, "|", BitwiseOr) -CYInfix_(13, "&&", LogicalAnd) -CYInfix_(14, "||", LogicalOr) +CYPrefix_(true, "delete", Delete) +CYPrefix_(true, "void", Void) +CYPrefix_(true, "typeof", TypeOf) +CYPrefix_(false, "++", PreIncrement) +CYPrefix_(false, "--", PreDecrement) +CYPrefix_(false, "-", Negate) +CYPrefix_(false, "~", BitwiseNot) +CYPrefix_(false, "!", LogicalNot) + +CYInfix_(false, 5, "*", Multiply) +CYInfix_(false, 5, "/", Divide) +CYInfix_(false, 5, "%", Modulus) +CYInfix_(false, 6, "+", Add) +CYInfix_(false, 6, "-", Subtract) +CYInfix_(false, 7, "<<", ShiftLeft) +CYInfix_(false, 7, ">>", ShiftRightSigned) +CYInfix_(false, 7, ">>>", ShiftRightUnsigned) +CYInfix_(false, 8, "<", Less) +CYInfix_(false, 8, ">", Greater) +CYInfix_(false, 8, "<=", LessOrEqual) +CYInfix_(false, 8, ">=", GreaterOrEqual) +CYInfix_(true, 8, "instanceof", InstanceOf) +CYInfix_(true, 8, "in", In) +CYInfix_(false, 9, "==", Equal) +CYInfix_(false, 9, "!=", NotEqual) +CYInfix_(false, 9, "===", Identical) +CYInfix_(false, 9, "!==", NotIdentical) +CYInfix_(false, 10, "&", BitwiseAnd) +CYInfix_(false, 11, "^", BitwiseXOr) +CYInfix_(false, 12, "|", BitwiseOr) +CYInfix_(false, 13, "&&", LogicalAnd) +CYInfix_(false, 14, "||", LogicalOr) CYAssignment_("=", ) CYAssignment_("*=", Multiply)