-/* Cycript - Remote Execution Server and Disassembler
- * Copyright (C) 2009 Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2010 Jay Freeman (saurik)
*/
-/* Modified BSD License {{{ */
+/* GNU Lesser General Public License, Version 3 {{{ */
/*
- * Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
+ * 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.
*
- * 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.
+ * 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.
*
- * 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.
-*/
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Cycript. If not, see <http://www.gnu.org/licenses/>.
+**/
/* }}} */
#ifndef CYPARSER_HPP
#define CYPARSER_HPP
-// XXX: wtf is this here?!
-#define CYPA 16
-
#include <iostream>
#include <string>
#include <vector>
+#include <map>
+#include <set>
+#include <cstdio>
#include <cstdlib>
#include "location.hh"
-#include "Pooling.hpp"
-template <typename Type_>
-struct CYNext {
- Type_ *next_;
+#include "List.hpp"
+#include "Pooling.hpp"
+#include "Options.hpp"
- CYNext() :
- next_(NULL)
- {
- }
+class CYContext;
- CYNext(Type_ *next) :
- next_(next)
- {
- }
-
- void SetNext(Type_ *next) {
- next_ = next;
+struct CYThing {
+ virtual ~CYThing() {
}
-};
-struct CYThing {
virtual void Output(struct CYOutput &out) const = 0;
};
struct CYOutput {
std::ostream &out_;
+ CYOptions &options_;
bool pretty_;
unsigned indent_;
+ bool right_;
enum {
NoMode,
Terminated
} mode_;
- CYOutput(std::ostream &out) :
+ CYOutput(std::ostream &out, CYOptions &options) :
out_(out),
+ options_(options),
pretty_(false),
indent_(0),
+ right_(false),
mode_(NoMode)
{
}
struct CYPropertyName {
virtual void PropertyName(CYOutput &out) const = 0;
+
+ virtual ~CYPropertyName() {
+ }
};
struct CYExpression;
CYNoCall = (1 << 3),
CYNoRightHand = (1 << 4),
CYNoDangle = (1 << 5),
+ CYNoInteger = (1 << 6),
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>
{
+ virtual ~CYStatement() {
+ }
+
void Single(CYOutput &out, CYFlags flags) const;
void Multiple(CYOutput &out, CYFlags flags = CYNoFlags) const;
- CYStatement *ReplaceAll(CYContext &context);
-
+ virtual CYStatement *Collapse(CYContext &context);
virtual CYStatement *Replace(CYContext &context) = 0;
private:
};
struct CYClassName {
+ virtual ~CYClassName() {
+ }
+
virtual CYExpression *ClassName(CYContext &context, bool object) = 0;
virtual void ClassName(CYOutput &out, bool object) const = 0;
};
{
}
- 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);
};
_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 :
+ 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 :
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,
+ CYIdentifierCatch,
+};
+
+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;
+
+// XXX: strategy pattern, maybe subclass
+enum CYScopeType {
+ CYScopeCatch,
+ CYScopeFunction,
+ CYScopeProgram,
+};
+
+struct CYScope {
+ CYScopeType type_;
+
+ CYContext &context_;
+ CYStatement *&statements_;
+
+ CYScope *parent_;
+
+ CYIdentifierAddressFlagsMap internal_;
+ CYIdentifierValueSet identifiers_;
+
+ CYScope(CYScopeType type, CYContext &context, CYStatement *&statements);
+
+ 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
{
}
virtual void Replace(CYContext &context);
-
virtual void Output(CYOutput &out) const;
};
+struct CYNonLocal;
+
+struct CYContext {
+ CYOptions &options_;
+
+ CYScope *scope_;
+ CYIdentifierUsageVector rename_;
+
+ CYNonLocal *nonlocal_;
+ CYNonLocal *nextlocal_;
+ unsigned unique_;
+
+ CYContext(CYOptions &options) :
+ options_(options),
+ scope_(NULL),
+ nonlocal_(NULL),
+ nextlocal_(NULL),
+ unique_(0)
+ {
+ }
+
+ virtual ~CYContext() {
+ }
+
+ template <typename Type_>
+ void ReplaceAll(Type_ *&values) {
+ Type_ **last(&values);
+ CYForEach (next, values) {
+ Replace(*last);
+ last = &(*last)->next_;
+ }
+ }
+
+ 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;
+ }
+ }
+
+ 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 CYBlock :
CYStatement,
CYThing
return statements_;
}
+ void AddPrev(CYStatement *statement) {
+ CYSetLast(statement, statements_);
+ statements_ = statement;
+ }
+
virtual CYStatement *Replace(CYContext &context);
virtual void Output(CYOutput &out) const;
class CYDriver {
public:
- CYPool pool_;
-
CYState state_;
void *scanner_;
bool strict_;
enum Condition {
- RegExpSlash,
- RegExpSlashEqual,
- RegExpSlashRight,
+ RegExpCondition,
+ XMLContentCondition,
+ XMLTagCondition,
};
std::string filename_;
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_;
+
private:
void ScannerInit();
void ScannerDestroy();
public:
- CYDriver(const std::string &filename);
+ 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);
};
struct CYForInitialiser {
+ virtual ~CYForInitialiser() {
+ }
+
virtual void For(CYOutput &out) const = 0;
+ virtual CYExpression *Replace(CYContext &context) = 0;
};
struct CYForInInitialiser {
+ virtual ~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;
virtual const char *ForEachIn() const;
virtual CYExpression *ForEachIn(CYContext &out);
+ 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;
- CYExpression *ReplaceAll(CYContext &context);
-
virtual CYExpression *Replace(CYContext &context) = 0;
virtual CYExpression *Primitive(CYContext &context) {
}
#define CYPrecedence(value) \
+ static const unsigned Precedence_ = value; \
virtual unsigned Precedence() const { \
- return value; \
+ return Precedence_; \
}
#define CYRightHand(value) \
{
CYExpression *expressions_;
- CYCompound(CYExpression *expressions) :
+ CYCompound(CYExpression *expressions = NULL) :
expressions_(expressions)
{
}
void AddPrev(CYExpression *expression) {
- CYExpression *last(expression);
- while (last->next_ != NULL)
- last = last->next_;
- last->SetNext(expressions_);
+ CYSetLast(expression, expressions_);
expressions_ = expression;
}
{
}
+ virtual CYFunctionParameter *Replace(CYContext &context, CYBlock &code);
+ virtual void Output(CYOutput &out) const;
+};
+
+struct CYOptionalFunctionParameter :
+ CYFunctionParameter
+{
+ CYExpression *initializer_;
+
+ CYOptionalFunctionParameter(CYIdentifier *name, CYExpression *initializer, CYFunctionParameter *next = NULL) :
+ CYFunctionParameter(name, next),
+ initializer_(initializer)
+ {
+ }
+
+ virtual CYFunctionParameter *Replace(CYContext &context, CYBlock &code);
virtual void Output(CYOutput &out) const;
};
}
virtual const char *Name() const {
- return name_->Value();
+ return name_->Word();
}
virtual CYFunctionParameter *Parameter(CYContext &context) const;
}
virtual const char *Name() const {
- return name_->Value();
+ return name_->Word();
}
virtual CYFunctionParameter *Parameter(CYContext &context) const;
}
CYString(const CYWord *word) :
- value_(word->Value()),
+ value_(word->Word()),
size_(strlen(value_))
{
}
virtual CYNumber *Number(CYContext &context);
virtual CYString *String(CYContext &context);
- virtual CYString *Concat(CYContext &out, CYString *rhs) const;
+ CYString *Concat(CYContext &out, CYString *rhs) const;
virtual void Output(CYOutput &out, CYFlags flags) const;
virtual void PropertyName(CYOutput &out) const;
};
{
}
+ CYVariable(const char *name) :
+ name_(new($pool) CYIdentifier(name))
+ {
+ }
+
CYPrecedence(0)
CYRightHand(false)
virtual void Output(CYOutput &out, CYFlags flags) const;
};
+struct CYProperty :
+ CYNext<CYProperty>,
+ CYThing
+{
+ CYPropertyName *name_;
+ CYExpression *value_;
+
+ CYProperty(CYPropertyName *name, CYExpression *value, CYProperty *next = NULL) :
+ CYNext<CYProperty>(next),
+ name_(name),
+ value_(value)
+ {
+ }
+
+ void Replace(CYContext &context);
+ virtual void Output(CYOutput &out) const;
+};
+
struct CYDeclaration :
CYForInInitialiser
{
CYIdentifier *identifier_;
CYExpression *initialiser_;
- CYDeclaration(CYIdentifier *identifier, CYExpression *initialiser) :
+ CYDeclaration(CYIdentifier *identifier, CYExpression *initialiser = NULL) :
identifier_(identifier),
initialiser_(initialiser)
{
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_;
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;
virtual void Output(CYOutput &out, CYFlags flags) const;
virtual void Output(CYOutput &out, CYFlags flags) const;
};
-struct CYProperty :
- CYNext<CYProperty>,
- CYThing
-{
- CYPropertyName *name_;
- CYExpression *value_;
-
- CYProperty(CYPropertyName *name, CYExpression *value, CYProperty *next = NULL) :
- CYNext<CYProperty>(next),
- name_(name),
- value_(value)
- {
- }
-
- void Replace(CYContext &context);
- virtual void Output(CYOutput &out) const;
-};
-
struct CYObject :
CYLiteral
{
CYProperty *properties_;
- CYObject(CYProperty *properties) :
+ CYObject(CYProperty *properties = NULL) :
properties_(properties)
{
}
void Output(CYOutput &out, CYFlags flags) const;
};
-struct CYCatch :
- CYThing
-{
- CYIdentifier *name_;
- CYBlock code_;
-
- CYCatch(CYIdentifier *name, CYStatement *statements) :
- name_(name),
- code_(statements)
- {
- }
-
- void Replace(CYContext &context);
- virtual void Output(CYOutput &out) const;
-};
-
struct CYMember :
CYExpression
{
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 CYExpression *Replace(CYContext &context);
virtual void Output(CYOutput &out, CYFlags flags) const;
+
+ virtual CYExpression *AddArgument(CYContext &context, CYExpression *value);
};
+} }
+
struct CYCall :
CYExpression
{
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 :
virtual void Output(CYOutput &out, CYFlags flags) const;
};
+// XXX: this should be split up into CYAnonymousFunction and CYNamedFunction (subclass)
struct CYFunction {
CYIdentifier *name_;
CYFunctionParameter *parameters_;
CYBlock code_;
+ CYNonLocal *nonlocal_;
CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
name_(name),
parameters_(parameters),
- code_(statements)
+ code_(statements),
+ nonlocal_(NULL)
{
}
- virtual void Replace_(CYContext &context);
+ 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
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 CYExpression *Replace(CYContext &context);
+ virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+// XXX: this should derive from CYNamedFunction
struct CYFunctionStatement :
CYFunction,
CYStatement
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;
};
struct CYEmpty :
CYStatement
{
+ virtual CYStatement *Collapse(CYContext &context);
virtual CYStatement *Replace(CYContext &context);
virtual void Output(CYOutput &out, CYFlags flags) const;
};
virtual void Output(CYOutput &out) const;
};
-struct CYTry :
+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 Try :
CYStatement
{
CYBlock code_;
- CYCatch *catch_;
+ Catch *catch_;
CYFinally *finally_;
- CYTry(CYStatement *statements, CYCatch *_catch, CYFinally *finally) :
+ Try(CYStatement *statements, Catch *_catch, CYFinally *finally) :
code_(statements),
catch_(_catch),
finally_(finally)
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(CYOutput &out, CYFlags flags) const;
};
+} }
+
struct CYWith :
CYStatement
{
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