X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/62014ea9ffc6c31f053863a89d783475a3937d74..812bb90bb091c1b4d64dbd8abf3a70f5f05d935a:/Parser.hpp diff --git a/Parser.hpp b/Parser.hpp index b848c7b..c9614ed 100644 --- a/Parser.hpp +++ b/Parser.hpp @@ -1,61 +1,208 @@ -#ifndef CYPARSER_HPP -#define CYPARSER_HPP - -#include +/* Cycript - Optimizing JavaScript Compiler/Runtime + * Copyright (C) 2009-2012 Jay Freeman (saurik) +*/ + +/* GNU Lesser 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 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. + * + * You should have received a copy of the GNU Lesser General Public License + * along with Cycript. If not, see . +**/ +/* }}} */ + +#ifndef CYCRIPT_PARSER_HPP +#define CYCRIPT_PARSER_HPP + +#include + +#include #include #include +#include +#include + +#include +#include #include "location.hh" + +#include "List.hpp" #include "Pooling.hpp" +#include "Options.hpp" -template -struct CYNext { - Type_ *next_; +struct CYContext; - CYNext() : - next_(NULL) - { +struct CYThing { + virtual ~CYThing() { } - CYNext(Type_ *next) : - next_(next) + virtual void Output(struct CYOutput &out) const = 0; +}; + +struct CYOutput { + std::ostream &out_; + CYOptions &options_; + bool pretty_; + unsigned indent_; + bool right_; + + enum { + NoMode, + NoLetter, + NoPlus, + NoHyphen, + Terminated + } mode_; + + CYOutput(std::ostream &out, CYOptions &options) : + out_(out), + options_(options), + pretty_(false), + indent_(0), + right_(false), + mode_(NoMode) { } - void SetNext(Type_ *next) { - next_ = next; + void Check(char value); + void Terminate(); + + CYOutput &operator <<(char rhs); + CYOutput &operator <<(const char *rhs); + + _finline CYOutput &operator <<(const CYThing *rhs) { + if (rhs != NULL) + rhs->Output(*this); + return *this; + } + + _finline CYOutput &operator <<(const CYThing &rhs) { + rhs.Output(*this); + return *this; } }; -struct CYThing { - virtual void Output(std::ostream &out) const = 0; +struct CYPropertyName { + virtual void PropertyName(CYOutput &out) const = 0; + + virtual ~CYPropertyName() { + } }; -_finline std::ostream &operator <<(std::ostream &out, const CYThing &rhs) { - rhs.Output(out); - return out; -} +struct CYExpression; +struct CYAssignment; -struct CYPart { - virtual void Part(std::ostream &out) const = 0; +enum CYNeeded { + CYNever = -1, + CYSometimes = 0, + CYAlways = 1, }; -struct CYSource : - CYNext -{ - virtual void Show(std::ostream &out) const; - virtual void Output(std::ostream &out) const = 0; - virtual void Output(std::ostream &out, bool block) const; +enum CYFlags { + CYNoFlags = 0, + CYNoBrace = (1 << 0), + CYNoFunction = (1 << 1), + CYNoIn = (1 << 2), + CYNoCall = (1 << 3), + CYNoRightHand = (1 << 4), + CYNoDangle = (1 << 5), + CYNoInteger = (1 << 6), + CYNoBF = (CYNoBrace | CYNoFunction), }; -struct CYName : - CYThing +_finline CYFlags operator ~(CYFlags rhs) { + return static_cast(~static_cast(rhs)); +} + +_finline CYFlags operator &(CYFlags lhs, CYFlags rhs) { + return static_cast(static_cast(lhs) & static_cast(rhs)); +} + +_finline CYFlags operator |(CYFlags lhs, CYFlags rhs) { + return static_cast(static_cast(lhs) | static_cast(rhs)); +} + +_finline CYFlags &operator |=(CYFlags &lhs, CYFlags rhs) { + return lhs = lhs | rhs; +} + +_finline CYFlags CYLeft(CYFlags flags) { + return flags & ~(CYNoDangle | CYNoInteger); +} + +_finline CYFlags CYRight(CYFlags flags) { + return flags & ~CYNoBF; +} + +_finline CYFlags CYCenter(CYFlags flags) { + return CYLeft(CYRight(flags)); +} + +struct CYStatement : + CYNext { - virtual const char *Name() const = 0; + virtual ~CYStatement() { + } + + void Single(CYOutput &out, CYFlags flags) const; + void Multiple(CYOutput &out, CYFlags flags = CYNoFlags) const; + + virtual CYStatement *Replace(CYContext &context) = 0; + + private: + virtual void Output(CYOutput &out, CYFlags flags) const = 0; +}; + +struct CYStatements { + CYStatement *first_; + CYStatement *last_; + + CYStatements() : + first_(NULL), + last_(NULL) + { + } + + operator CYStatement *() const { + return first_; + } + + CYStatements &operator ->*(CYStatement *next) { + if (next != NULL) + if (first_ == NULL) { + first_ = next; + last_ = next; + } else for (;; last_ = last_->next_) + if (last_->next_ == NULL) { + last_->next_ = next; + last_ = next; + break; + } + return *this; + } +}; + +struct CYClassName { + virtual ~CYClassName() { + } + + virtual CYExpression *ClassName(CYContext &context, bool object) = 0; + virtual void ClassName(CYOutput &out, bool object) const = 0; }; struct CYWord : - CYName + CYThing, + CYPropertyName, + CYClassName { const char *word_; @@ -64,46 +211,256 @@ struct CYWord : { } - const char *Value() const { - return word_; + void Set(const char *value) { + word_ = value; } - virtual const char *Name() const { - return Value(); - } + virtual const char *Word() const; + virtual void Output(CYOutput &out) const; - virtual void Output(std::ostream &out) const; + virtual CYExpression *ClassName(CYContext &context, bool object); + virtual void ClassName(CYOutput &out, bool object) const; + virtual void PropertyName(CYOutput &out) const; }; +_finline std::ostream &operator <<(std::ostream &lhs, const CYWord &rhs) { + lhs << &rhs << '='; + return lhs << rhs.Word(); +} + struct CYIdentifier : + CYNext, 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 : + CYStatement +{ + const char *value_; + + CYComment(const char *value) : + value_(value) + { + } + + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYLabel : - CYNext + CYStatement +{ + CYIdentifier *name_; + CYStatement *statement_; + + CYLabel(CYIdentifier *name, CYStatement *statement) : + name_(name), + statement_(statement) + { + } + + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; +}; + +struct CYCStringLess : + std::binary_function +{ + _finline bool operator ()(const char *lhs, const char *rhs) const { + return strcmp(lhs, rhs) < 0; + } +}; + +struct CYIdentifierValueLess : + std::binary_function { + _finline bool operator ()(CYIdentifier *lhs, CYIdentifier *rhs) const { + return CYCStringLess()(lhs->Word(), rhs->Word()); + } +}; + +enum CYIdentifierFlags { + CYIdentifierArgument, + CYIdentifierVariable, + CYIdentifierOther, + CYIdentifierMagic, + CYIdentifierCatch, +}; + +typedef std::set CYCStringSet; +typedef std::set CYIdentifierValueSet; +typedef std::map CYIdentifierAddressFlagsMap; + +struct CYIdentifierUsage { CYIdentifier *identifier_; + size_t usage_; +}; + +typedef std::vector CYIdentifierUsageVector; + +struct CYScope { + bool transparent_; + + CYContext &context_; + CYStatement *&statements_; + + CYScope *parent_; + + CYIdentifierAddressFlagsMap internal_; + CYIdentifierValueSet identifiers_; + + CYScope(bool transparent, CYContext &context, CYStatement *&statements); + virtual ~CYScope(); - CYLabel(CYIdentifier *identifier, CYLabel *next) : - CYNext(next), - identifier_(identifier) + void Close(); + + 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 +{ + CYStatement *statements_; + + CYProgram(CYStatement *statements) : + statements_(statements) { } + + virtual void Replace(CYContext &context); + virtual void Output(CYOutput &out) const; }; -struct CYStatement : - CYSource +struct CYNonLocal; +struct CYThisScope; + +struct CYContext { + CYOptions &options_; + + CYScope *scope_; + CYThisScope *this_; + + CYIdentifierUsageVector rename_; + + CYNonLocal *nonlocal_; + CYNonLocal *nextlocal_; + unsigned unique_; + + CYContext(CYOptions &options) : + options_(options), + scope_(NULL), + this_(NULL), + nonlocal_(NULL), + nextlocal_(NULL), + unique_(0) + { + } + + virtual ~CYContext() { + } + + template + void ReplaceAll(Type_ *&values) { + Type_ **last(&values); + CYForEach (next, values) { + Replace(*last = next); + if (*last != NULL) + last = &(*last)->next_; + } + } + + template + void Replace(Type_ *&value) { + for (;;) if (value == NULL) + break; + else { + Type_ *replace(value->Replace(*this)); + if (replace != value) + value = replace; + else break; + } + } + + void NonLocal(CYStatement *&statements); + CYIdentifier *Unique(); +}; + +struct CYNonLocal { + CYIdentifier *identifier_; + + CYNonLocal() : + identifier_(NULL) + { + } + + CYIdentifier *Target(CYContext &context) { + if (identifier_ == NULL) + identifier_ = context.Unique(); + return identifier_; + } +}; + +struct CYThisScope : + CYNext +{ + 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 { - CYLabel *label_; + CYStatement *statements_; - void AddLabel(CYIdentifier *identifier) { - label_ = new CYLabel(identifier, label_); + CYBlock(CYStatement *statements) : + statements_(statements) + { + } + + operator CYStatement *() const { + return statements_; + } + + void AddPrev(CYStatement *statement) { + CYSetLast(statement) = statements_; + statements_ = statement; } + + virtual CYStatement *Replace(CYContext &context); + + virtual void Output(CYOutput &out) const; + virtual void Output(CYOutput &out, CYFlags flags) const; }; enum CYState { @@ -112,111 +469,403 @@ 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(start), const_cast(start), const_cast(end)); + } + } buffer_; + + public: + CYStream(const char *start, const char *end) : + std::istream(&buffer_), + buffer_(start, end) + { + } +}; + class CYDriver { public: - CYPool pool_; + void *scanner_; CYState state_; - void *scanner_; + std::stack in_; - const char *data_; - size_t size_; + struct { + bool AtImplementation; + bool Function; + bool OpenBrace; + } no_; + + std::istream &data_; + + bool strict_; + bool commented_; + + enum Condition { + RegExpCondition, + XMLContentCondition, + XMLTagCondition, + }; std::string filename_; struct Error { + bool warning_; cy::location location_; std::string message_; }; typedef std::vector Errors; - CYSource *source_; + CYProgram *program_; Errors errors_; + bool auto_; + + struct Context { + CYExpression *context_; + + Context(CYExpression *context) : + context_(context) + { + } + + typedef std::vector Words; + Words words_; + }; + + typedef std::vector Contexts; + Contexts contexts_; + + CYExpression *context_; + + enum Mode { + AutoNone, + AutoPrimary, + AutoDirect, + AutoIndirect, + AutoMessage + } mode_; + private: void ScannerInit(); void ScannerDestroy(); - public: - CYDriver(const std::string &filename); - ~CYDriver(); + public: + CYDriver(std::istream &data, 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); +}; + +struct CYForInitialiser { + virtual ~CYForInitialiser() { + } + + virtual CYExpression *Replace(CYContext &context) = 0; + virtual void Output(CYOutput &out, CYFlags flags) const = 0; +}; + +struct CYForInInitialiser { + virtual ~CYForInInitialiser() { + } + + virtual void ForIn(CYOutput &out, CYFlags flags) const = 0; + 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; +struct CYString; + +struct CYExpression : + CYNext, + CYForInitialiser, + CYForInInitialiser, + CYClassName, + CYThing +{ + virtual unsigned Precedence() const = 0; + + virtual bool RightHand() const { + return true; + } + + virtual void ForIn(CYOutput &out, CYFlags flags) const; + virtual CYStatement *ForEachIn(CYContext &out, CYExpression *value); + + virtual CYExpression *AddArgument(CYContext &context, CYExpression *value); + + virtual void Output(CYOutput &out) const; + virtual void Output(CYOutput &out, CYFlags flags) const = 0; + void Output(CYOutput &out, unsigned precedence, CYFlags flags) const; + + virtual CYExpression *ClassName(CYContext &context, bool object); + 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; + } + + virtual CYNumber *Number(CYContext &context) { + return NULL; + } + + virtual CYString *String(CYContext &context) { + return NULL; + } + + virtual const char *Word() const { + return NULL; + } +}; + +#define CYAlphabetic(value) \ + virtual bool Alphabetic() const { \ + return value; \ + } + +#define CYPrecedence(value) \ + static const unsigned Precedence_ = value; \ + virtual unsigned Precedence() const { \ + return Precedence_; \ + } + +#define CYRightHand(value) \ + virtual bool RightHand() const { \ + return value; \ + } + +struct CYCompound : + CYExpression +{ + CYExpression *expressions_; + + CYCompound(CYExpression *expressions = NULL) : + expressions_(expressions) + { + } + + void AddPrev(CYExpression *expression) { + CYSetLast(expression) = expressions_; + expressions_ = expression; + } + + CYPrecedence(17) + + virtual CYExpression *Replace(CYContext &context); + void Output(CYOutput &out, CYFlags flags) const; + + virtual CYExpression *Primitive(CYContext &context); +}; + +struct CYDeclaration; + +struct CYFunctionParameter : + CYNext, + CYThing +{ + CYForInInitialiser *initialiser_; + + CYFunctionParameter(CYForInInitialiser *initialiser, CYFunctionParameter *next = NULL) : + CYNext(next), + initialiser_(initialiser) + { + } + + void Replace(CYContext &context, CYBlock &code); + void Output(CYOutput &out) const; +}; + +struct CYComprehension : + CYNext, + CYThing +{ + CYComprehension(CYComprehension *next = NULL) : + CYNext(next) + { + } + + virtual const char *Name() const = 0; + + virtual CYFunctionParameter *Parameter(CYContext &context) const = 0; + CYFunctionParameter *Parameters(CYContext &context) const; + virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const; + virtual void Output(CYOutput &out) const = 0; +}; + +struct CYForInComprehension : + CYComprehension +{ + CYIdentifier *name_; + CYExpression *set_; + + CYForInComprehension(CYIdentifier *name, CYExpression *set, CYComprehension *next = NULL) : + CYComprehension(next), + name_(name), + set_(set) + { + } + + virtual const char *Name() const { + return name_->Word(); + } + + virtual CYFunctionParameter *Parameter(CYContext &context) const; + virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const; + virtual void Output(CYOutput &out) const; +}; + +struct CYForOfComprehension : + CYComprehension +{ + CYIdentifier *name_; + CYExpression *set_; + + CYForOfComprehension(CYIdentifier *name, CYExpression *set, CYComprehension *next = NULL) : + CYComprehension(next), + name_(name), + set_(set) + { + } + + virtual const char *Name() const { + return name_->Word(); + } + + virtual CYFunctionParameter *Parameter(CYContext &context) const; + virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const; + virtual void Output(CYOutput &out) const; +}; + +struct CYIfComprehension : + CYComprehension +{ + CYExpression *test_; + + CYIfComprehension(CYExpression *test) : + test_(test) + { + } + + virtual const char *Name() const { + return NULL; + } + + virtual CYFunctionParameter *Parameter(CYContext &context) const; + virtual CYStatement *Replace(CYContext &context, CYStatement *statement) const; + virtual void Output(CYOutput &out) const; }; -struct CYForInitialiser : - CYPart +struct CYArrayComprehension : + CYExpression { + CYExpression *expression_; + CYComprehension *comprehensions_; + + CYArrayComprehension(CYExpression *expression, CYComprehension *comprehensions) : + expression_(expression), + comprehensions_(comprehensions) + { + } + + CYPrecedence(0) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; -struct CYForInInitialiser : - CYPart +struct CYLiteral : + CYExpression { + CYPrecedence(0) + CYRightHand(false) }; -struct CYExpression : - CYNext, - CYForInitialiser, - CYForInInitialiser +struct CYTrivial : + CYLiteral { - virtual void Part(std::ostream &out) const; - virtual void Output(std::ostream &out) const = 0; - void Output(std::ostream &out, bool raw) const; + virtual CYExpression *Replace(CYContext &context); }; -_finline std::ostream &operator <<(std::ostream &out, const CYExpression &rhs) { - rhs.Output(out, false); - return out; -} - -struct CYLiteral : +struct CYMagic : CYExpression { + CYPrecedence(0) + CYRightHand(false) }; -struct CYSelectorPart : - CYNext -{ - CYWord *name_; - bool value_; +struct CYRange { + uint64_t lo_; + uint64_t hi_; - CYSelectorPart(CYWord *name, bool value, CYSelectorPart *next) : - CYNext(next), - name_(name), - value_(value) + CYRange(uint64_t lo, uint64_t hi) : + lo_(lo), hi_(hi) { } - virtual void Output(std::ostream &out) const; -}; - -struct CYSelector : - CYLiteral -{ - CYSelectorPart *name_; - - CYSelector(CYSelectorPart *name) : - name_(name) - { + bool operator [](uint8_t value) const { + return !(value >> 7) && (value >> 6 ? hi_ : lo_) >> (value & 0x3f) & 0x1; } - virtual void Output(std::ostream &out) const; + 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 + CYTrivial, + CYPropertyName { const char *value_; size_t size_; + CYString() : + value_(NULL), + size_(0) + { + } + + CYString(const char *value) : + value_(value), + size_(strlen(value)) + { + } + CYString(const char *value, size_t size) : value_(value), size_(size) { } - CYString(const CYIdentifier *identifier) : - value_(identifier->Value()), + CYString(const CYWord *word) : + value_(word->Word()), size_(strlen(value_)) { } @@ -225,16 +874,19 @@ struct CYString : return value_; } - virtual const char *Name() const { - return Value(); - } + virtual const char *Word() const; + + virtual CYNumber *Number(CYContext &context); + virtual CYString *String(CYContext &context); - virtual void Output(std::ostream &out) const; + CYString *Concat(CYContext &out, CYString *rhs) const; + virtual void Output(CYOutput &out, CYFlags flags) const; + virtual void PropertyName(CYOutput &out) const; }; struct CYNumber : - CYLiteral, - CYName + CYTrivial, + CYPropertyName { double value_; @@ -247,42 +899,63 @@ struct CYNumber : return value_; } - virtual const char *Name() const { - throw; + virtual CYNumber *Number(CYContext &context); + virtual CYString *String(CYContext &context); + + virtual void Output(CYOutput &out, CYFlags flags) const; + virtual void PropertyName(CYOutput &out) const; +}; + +struct CYRegEx : + CYTrivial +{ + const char *value_; + + CYRegEx(const char *value) : + value_(value) + { + } + + const char *Value() const { + return value_; } - virtual void Output(std::ostream &out) const; + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYNull : CYWord, - CYLiteral + CYTrivial { CYNull() : CYWord("null") { } - virtual void Output(std::ostream &out) const; + virtual CYNumber *Number(CYContext &context); + virtual CYString *String(CYContext &context); + + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYThis : CYWord, - CYExpression + CYMagic { CYThis() : CYWord("this") { } - virtual void Output(std::ostream &out) const; + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYBoolean : - CYLiteral + CYTrivial { virtual bool Value() const = 0; - virtual void Output(std::ostream &out) const; + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYFalse : @@ -297,6 +970,9 @@ struct CYFalse : virtual bool Value() const { return false; } + + virtual CYNumber *Number(CYContext &context); + virtual CYString *String(CYContext &context); }; struct CYTrue : @@ -311,6 +987,9 @@ struct CYTrue : virtual bool Value() const { return true; } + + virtual CYNumber *Number(CYContext &context); + virtual CYString *String(CYContext &context); }; struct CYVariable : @@ -323,7 +1002,16 @@ struct CYVariable : { } - virtual void Output(std::ostream &out) const; + CYVariable(const char *name) : + name_(new($pool) CYIdentifier(name)) + { + } + + CYPrecedence(0) + CYRightHand(false) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYPrefix : @@ -336,9 +1024,13 @@ struct CYPrefix : { } + virtual bool Alphabetic() const = 0; virtual const char *Operator() const = 0; - virtual void Output(std::ostream &out) const; + CYPrecedence(4) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYInfix : @@ -353,9 +1045,15 @@ 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 CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYPostfix : @@ -370,26 +1068,50 @@ struct CYPostfix : virtual const char *Operator() const = 0; - virtual void Output(std::ostream &out) const; + CYPrecedence(3) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYAssignment : - CYInfix + CYExpression { + CYExpression *lhs_; + CYExpression *rhs_; + CYAssignment(CYExpression *lhs, CYExpression *rhs) : - CYInfix(lhs, rhs) + lhs_(lhs), + rhs_(rhs) { } + void SetLeft(CYExpression *lhs) { + lhs_ = lhs; + } + virtual const char *Operator() const = 0; + + CYPrecedence(16) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYArgument : - CYNext + CYNext, + CYThing { CYWord *name_; CYExpression *value_; + CYArgument(CYExpression *value, CYArgument *next = NULL) : + CYNext(next), + name_(NULL), + value_(value) + { + } + CYArgument(CYWord *name, CYExpression *value, CYArgument *next = NULL) : CYNext(next), name_(name), @@ -397,7 +1119,8 @@ struct CYArgument : { } - void Output(std::ostream &out, bool send) const; + CYArgument *Replace(CYContext &context); + void Output(CYOutput &out) const; }; struct CYBlank : @@ -414,19 +1137,21 @@ struct CYClause : CYNext { CYExpression *case_; - CYStatement *code_; + CYStatement *statements_; - CYClause(CYExpression *_case, CYStatement *code) : + CYClause(CYExpression *_case, CYStatement *statements) : case_(_case), - code_(code) + statements_(statements) { } - virtual void Output(std::ostream &out) const; + void Replace(CYContext &context); + virtual void Output(CYOutput &out) const; }; struct CYElement : - CYNext + CYNext, + CYThing { CYExpression *value_; @@ -436,7 +1161,8 @@ struct CYElement : { } - void Output(std::ostream &out) const; + void Replace(CYContext &context); + void Output(CYOutput &out) const; }; struct CYArray : @@ -444,61 +1170,121 @@ struct CYArray : { CYElement *elements_; - CYArray(CYElement *elements) : + CYArray(CYElement *elements = NULL) : elements_(elements) { } - virtual void Output(std::ostream &out) const; + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; +}; + +struct CYProperty : + CYNext, + CYThing +{ + CYPropertyName *name_; + CYExpression *value_; + + CYProperty(CYPropertyName *name, CYExpression *value, CYProperty *next = NULL) : + CYNext(next), + name_(name), + value_(value) + { + } + + void Replace(CYContext &context); + virtual void Output(CYOutput &out) const; }; struct CYDeclaration : - CYThing, CYForInInitialiser { CYIdentifier *identifier_; CYExpression *initialiser_; - CYDeclaration(CYIdentifier *identifier, CYExpression *initialiser) : + CYDeclaration(CYIdentifier *identifier, CYExpression *initialiser = NULL) : identifier_(identifier), initialiser_(initialiser) { } - virtual void Part(std::ostream &out) const; - virtual void Output(std::ostream &out) const; + virtual void ForIn(CYOutput &out, CYFlags flags) const; + 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 : - CYStatement, - CYForInitialiser + CYNext, + CYThing { CYDeclaration *declaration_; - CYDeclarations *next_; - CYDeclarations(CYDeclaration *declaration, CYDeclarations *next) : - declaration_(declaration), - next_(next) + CYDeclarations(CYDeclaration *declaration, CYDeclarations *next = NULL) : + CYNext(next), + declaration_(declaration) { } - virtual void Part(std::ostream &out) const; - virtual void Output(std::ostream &out) const; + void 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 CYParameter : - CYNext, - CYThing +struct CYForDeclarations : + CYForInitialiser { - CYIdentifier *name_; + CYDeclarations *declarations_; - CYParameter(CYIdentifier *name, CYParameter *next) : - CYNext(next), - name_(name) + CYForDeclarations(CYDeclarations *declarations) : + declarations_(declarations) + { + } + + virtual CYCompound *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; +}; + +struct CYVar : + CYStatement +{ + CYDeclarations *declarations_; + + CYVar(CYDeclarations *declarations) : + declarations_(declarations) + { + } + + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; +}; + +struct CYLetStatement : + CYStatement +{ + CYDeclarations *declarations_; + CYStatement *code_; + + CYLetStatement(CYDeclarations *declarations, CYStatement *code) : + declarations_(declarations), + code_(code) { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYFor : @@ -517,7 +1303,8 @@ struct CYFor : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYForIn : @@ -534,111 +1321,158 @@ struct CYForIn : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; -struct CYProperty : - CYNext +struct CYForOf : + CYStatement { - CYName *name_; - CYExpression *value_; + CYForInInitialiser *initialiser_; + CYExpression *set_; + CYStatement *code_; - CYProperty(CYName *name, CYExpression *value, CYProperty *next) : - CYNext(next), - name_(name), - value_(value) + CYForOf(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) : + initialiser_(initialiser), + set_(set), + code_(code) { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYObject : CYLiteral { - CYProperty *property_; + CYProperty *properties_; - CYObject(CYProperty *property) : - property_(property) + CYObject(CYProperty *properties = NULL) : + properties_(properties) { } - void Output(std::ostream &out) const; + virtual CYExpression *Replace(CYContext &context); + void Output(CYOutput &out, CYFlags flags) const; }; -struct CYCatch : - CYThing +struct CYMember : + CYExpression { - CYIdentifier *name_; - CYStatement *code_; + CYExpression *object_; + CYExpression *property_; - CYCatch(CYIdentifier *name, CYStatement *code) : - name_(name), - code_(code) + CYMember(CYExpression *object, CYExpression *property) : + object_(object), + property_(property) { } - virtual void Output(std::ostream &out) const; + void SetLeft(CYExpression *object) { + object_ = object; + } }; -struct CYMessage : - CYExpression +struct CYDirectMember : + CYMember { - CYExpression *self_; - CYArgument *arguments_; - - CYMessage(CYExpression *self, CYArgument *arguments) : - self_(self), - arguments_(arguments) + CYDirectMember(CYExpression *object, CYExpression *property) : + CYMember(object, property) { } - virtual void Output(std::ostream &out) const; + CYPrecedence(1) + CYRightHand(false) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; -struct CYMember : - CYExpression +struct CYIndirectMember : + CYMember { - CYExpression *object_; - CYExpression *property_; - - CYMember(CYExpression *object, CYExpression *property) : - object_(object), - property_(property) + CYIndirectMember(CYExpression *object, CYExpression *property) : + CYMember(object, property) { } - virtual void Output(std::ostream &out) const; + CYPrecedence(1) + CYRightHand(false) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; -struct CYNew : +namespace cy { +namespace Syntax { + +struct New : CYExpression { CYExpression *constructor_; CYArgument *arguments_; - CYNew(CYExpression *constructor, CYArgument *arguments) : + New(CYExpression *constructor, CYArgument *arguments) : constructor_(constructor), arguments_(arguments) { } - virtual void Output(std::ostream &out) const; + virtual unsigned Precedence() const { + return arguments_ == NULL ? 2 : 1; + } + + CYRightHand(false) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; + + virtual CYExpression *AddArgument(CYContext &context, CYExpression *value); }; +} } + struct CYCall : CYExpression { CYExpression *function_; CYArgument *arguments_; - CYCall(CYExpression *function, CYArgument *arguments) : + CYCall(CYExpression *function, CYArgument *arguments = NULL) : function_(function), arguments_(arguments) { } - virtual void Output(std::ostream &out) const; + CYPrecedence(1) + CYRightHand(false) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; + + virtual CYExpression *AddArgument(CYContext &context, CYExpression *value); +}; + +struct CYRubyProc; + +struct CYRubyBlock : + CYExpression +{ + CYExpression *call_; + CYRubyProc *proc_; + + CYRubyBlock(CYExpression *call, CYRubyProc *proc) : + call_(call), + proc_(proc) + { + } + + CYPrecedence(1) + CYRightHand(false) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYIf : @@ -648,14 +1482,15 @@ struct CYIf : CYStatement *true_; CYStatement *false_; - CYIf(CYExpression *test, CYStatement *_true, CYStatement *_false) : + CYIf(CYExpression *test, CYStatement *_true, CYStatement *_false = NULL) : test_(test), true_(_true), false_(_false) { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYDoWhile : @@ -670,7 +1505,8 @@ struct CYDoWhile : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYWhile : @@ -685,36 +1521,94 @@ struct CYWhile : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; -struct CYLambda : - CYExpression -{ +// XXX: this should be split up into CYAnonymousFunction and CYNamedFunction (subclass) +struct CYFunction { CYIdentifier *name_; - CYParameter *parameters_; - CYSource *body_; + CYFunctionParameter *parameters_; + CYBlock code_; - CYLambda(CYIdentifier *name, CYParameter *parameters, CYSource *body) : + CYNonLocal *nonlocal_; + CYThisScope this_; + + CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) : name_(name), parameters_(parameters), - body_(body) + code_(statements), + nonlocal_(NULL) + { + } + + virtual ~CYFunction() { + } + + void Inject(CYContext &context); + virtual void Replace_(CYContext &context, bool outer); + virtual void Output(CYOutput &out, CYFlags flags) const; +}; + +// XXX: this should be split up into CYAnonymousFunctionExpression and CYNamedFunctionExpression +struct CYFunctionExpression : + CYFunction, + CYExpression +{ + CYFunctionExpression(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) : + CYFunction(name, parameters, statements) + { + } + + CYPrecedence(0) + CYRightHand(false) + + virtual CYExpression *Replace(CYContext &context); + 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 +{ + CYRubyProc(CYFunctionParameter *parameters, CYStatement *statements) : + CYFunctionExpression(NULL, parameters, statements) { } - virtual void Output(std::ostream &out) const; + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; -struct CYFunction : - CYLambda, - CYSource +// XXX: this should derive from CYNamedFunction +struct CYFunctionStatement : + CYFunction, + CYStatement { - CYFunction(CYIdentifier *name, CYParameter *parameters, CYSource *body) : - CYLambda(name, parameters, body) + CYFunctionStatement(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) : + CYFunction(name, parameters, statements) { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYExpress : @@ -725,9 +1619,12 @@ struct CYExpress : CYExpress(CYExpression *expression) : expression_(expression) { + if (expression == NULL) + throw; } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYContinue : @@ -740,7 +1637,8 @@ struct CYContinue : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYBreak : @@ -753,7 +1651,8 @@ struct CYBreak : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYReturn : @@ -766,46 +1665,84 @@ struct CYReturn : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYEmpty : CYStatement { - virtual void Output(std::ostream &out) const; - virtual void Output(std::ostream &out, bool block) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; +}; + +struct CYFinally : + CYThing +{ + CYBlock code_; + + CYFinally(CYStatement *statements) : + code_(statements) + { + } + + void Replace(CYContext &context); + virtual void Output(CYOutput &out) const; +}; + +namespace cy { +namespace Syntax { + +struct Catch : + CYThing +{ + CYIdentifier *name_; + CYBlock code_; + + Catch(CYIdentifier *name, CYStatement *statements) : + name_(name), + code_(statements) + { + } + + void Replace(CYContext &context); + virtual void Output(CYOutput &out) const; }; -struct CYTry : +struct Try : CYStatement { - CYStatement *try_; - CYCatch *catch_; - CYStatement *finally_; + CYBlock code_; + Catch *catch_; + CYFinally *finally_; - CYTry(CYStatement *_try, CYCatch *_catch, CYStatement *finally) : - try_(_try), + Try(CYStatement *statements, Catch *_catch, CYFinally *finally) : + code_(statements), catch_(_catch), finally_(finally) { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; -struct CYThrow : +struct Throw : CYStatement { CYExpression *value_; - CYThrow(CYExpression *value) : + Throw(CYExpression *value = NULL) : value_(value) { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; +} } + struct CYWith : CYStatement { @@ -818,7 +1755,8 @@ struct CYWith : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYSwitch : @@ -833,7 +1771,19 @@ struct CYSwitch : { } - virtual void Output(std::ostream &out) const; + virtual CYStatement *Replace(CYContext &context); + 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 : @@ -844,12 +1794,16 @@ struct CYCondition : CYExpression *false_; CYCondition(CYExpression *test, CYExpression *_true, CYExpression *_false) : + test_(test), true_(_true), false_(_false) { } - virtual void Output(std::ostream &out) const; + CYPrecedence(15) + + virtual CYExpression *Replace(CYContext &context); + virtual void Output(CYOutput &out, CYFlags flags) const; }; struct CYAddressOf : @@ -864,7 +1818,9 @@ struct CYAddressOf : return "&"; } - virtual void Output(std::ostream &out) const; + CYAlphabetic(false) + + virtual CYExpression *Replace(CYContext &context); }; struct CYIndirect : @@ -879,13 +1835,18 @@ struct CYIndirect : return "*"; } - virtual void Output(std::ostream &out) const; + CYAlphabetic(false) + + virtual CYExpression *Replace(CYContext &context); }; -#define CYPostfix_(op, name) \ +#define CYReplace \ + virtual CYExpression *Replace(CYContext &context); + +#define CYPostfix_(op, name, args...) \ struct CY ## name : \ CYPostfix \ - { \ + { args \ CY ## name(CYExpression *lhs) : \ CYPostfix(lhs) \ { \ @@ -896,38 +1857,43 @@ struct CYIndirect : } \ }; -#define CYPrefix_(op, name) \ +#define CYPrefix_(alphabetic, op, name, args...) \ struct CY ## name : \ CYPrefix \ - { \ + { args \ CY ## name(CYExpression *rhs) : \ CYPrefix(rhs) \ { \ } \ + \ + CYAlphabetic(alphabetic) \ \ virtual const char *Operator() const { \ return op; \ } \ }; -#define CYInfix_(op, name) \ +#define CYInfix_(alphabetic, precedence, op, name, args...) \ struct CY ## name : \ CYInfix \ - { \ + { args \ CY ## name(CYExpression *lhs, CYExpression *rhs) : \ CYInfix(lhs, rhs) \ { \ } \ + \ + CYAlphabetic(alphabetic) \ + CYPrecedence(precedence) \ \ virtual const char *Operator() const { \ return op; \ } \ }; -#define CYAssignment_(op, name) \ +#define CYAssignment_(op, name, args...) \ struct CY ## name ## Assign : \ CYAssignment \ - { \ + { args \ CY ## name ## Assign(CYExpression *lhs, CYExpression *rhs) : \ CYAssignment(lhs, rhs) \ { \ @@ -941,38 +1907,39 @@ 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_("*", Multiply) -CYInfix_("/", Divide) -CYInfix_("%", Modulus) -CYInfix_("+", Add) -CYInfix_("-", Subtract) -CYInfix_("<<", ShiftLeft) -CYInfix_(">>", ShiftRightSigned) -CYInfix_(">>>", ShiftRightUnsigned) -CYInfix_("<", Less) -CYInfix_(">", Greater) -CYInfix_("<=", LessOrEqual) -CYInfix_(">=", GreaterOrEqual) -CYInfix_("instanceof", InstanceOf) -CYInfix_("in", In) -CYInfix_("==", Equal) -CYInfix_("!=", NotEqual) -CYInfix_("===", Identical) -CYInfix_("!==", NotIdentical) -CYInfix_("&", BitwiseAnd) -CYInfix_("^", BitwiseXOr) -CYInfix_("|", BitwiseOr) -CYInfix_("&&", LogicalAnd) -CYInfix_("||", LogicalOr) +CYPrefix_(true, "delete", Delete) +CYPrefix_(true, "void", Void) +CYPrefix_(true, "typeof", TypeOf) +CYPrefix_(false, "++", PreIncrement) +CYPrefix_(false, "--", PreDecrement) +CYPrefix_(false, "+", Affirm) +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, CYReplace) +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) @@ -987,4 +1954,4 @@ CYAssignment_("&=", BitwiseAnd) CYAssignment_("^=", BitwiseXOr) CYAssignment_("|=", BitwiseOr) -#endif/*CYPARSER_HPP*/ +#endif/*CYCRIPT_PARSER_HPP*/