-/* Cycript - Inlining/Optimizing JavaScript Compiler
- * Copyright (C) 2009 Jay Freeman (saurik)
+/* Cycript - Optimizing JavaScript Compiler/Runtime
+ * Copyright (C) 2009-2012 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
+#ifndef CYCRIPT_PARSER_HPP
+#define CYCRIPT_PARSER_HPP
#include <iostream>
+#include <stack>
#include <string>
#include <vector>
#include <map>
#include <set>
+#include <cstdio>
#include <cstdlib>
#include "location.hh"
+
+#include "List.hpp"
#include "Pooling.hpp"
#include "Options.hpp"
class CYContext;
-template <typename Type_>
-struct CYNext {
- Type_ *next_;
-
- CYNext() :
- next_(NULL)
- {
- }
-
- CYNext(Type_ *next) :
- next_(next)
- {
- }
-
- void SetNext(Type_ *next) {
- next_ = next;
- }
-};
-
struct CYThing {
virtual ~CYThing() {
}
};
struct CYExpression;
+struct CYAssignment;
enum CYNeeded {
CYNever = -1,
CYNoBF = (CYNoBrace | CYNoFunction),
};
+_finline CYFlags operator ~(CYFlags rhs) {
+ return static_cast<CYFlags>(~static_cast<unsigned>(rhs));
+}
+
+_finline CYFlags operator &(CYFlags lhs, CYFlags rhs) {
+ return static_cast<CYFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs));
+}
+
+_finline CYFlags operator |(CYFlags lhs, CYFlags rhs) {
+ return static_cast<CYFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(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<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:
CYWord
{
CYIdentifier *replace_;
+ size_t offset_;
+ size_t usage_;
CYIdentifier(const char *word) :
CYWord(word),
- replace_(NULL)
+ replace_(NULL),
+ offset_(0),
+ usage_(0)
{
}
CYIdentifierVariable,
CYIdentifierOther,
CYIdentifierMagic,
+ CYIdentifierCatch,
};
typedef std::set<const char *, CYCStringLess> CYCStringSet;
typedef std::set<CYIdentifier *, CYIdentifierValueLess> CYIdentifierValueSet;
-typedef std::set<CYIdentifier *> CYIdentifierAddressSet;
-typedef std::vector<CYIdentifier *> CYIdentifierAddressVector;
typedef std::map<CYIdentifier *, CYIdentifierFlags> CYIdentifierAddressFlagsMap;
+struct CYIdentifierUsage {
+ CYIdentifier *identifier_;
+ size_t usage_;
+};
+
+typedef std::vector<CYIdentifierUsage> CYIdentifierUsageVector;
+
struct CYScope {
+ bool transparent_;
+
+ CYContext &context_;
+ CYStatement *&statements_;
+
CYScope *parent_;
- CYIdentifierValueSet identifiers_;
+
CYIdentifierAddressFlagsMap internal_;
- size_t offset_;
+ CYIdentifierValueSet identifiers_;
- CYScope() :
- parent_(NULL),
- offset_(0)
- {
- }
+ CYScope(bool transparent, CYContext &context, CYStatement *&statements);
+ virtual ~CYScope();
+
+ void Close();
- void Add(CYContext &context, CYIdentifierAddressVector &external);
+ 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 :
- CYScope,
CYThing
{
CYStatement *statements_;
- CYIdentifierAddressVector rename_;
- CYCStringSet external_;
CYProgram(CYStatement *statements) :
statements_(statements)
virtual void Output(CYOutput &out) const;
};
+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 <typename Type_>
+ void ReplaceAll(Type_ *&values) {
+ Type_ **last(&values);
+ CYForEach (next, values) {
+ Replace(*last = next);
+ if (*last != NULL)
+ 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 CYThisScope :
+ CYNext<CYThisScope>
+{
+ 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
{
CYStatement *statements_;
- CYScope *scope_;
- CYBlock(CYStatement *statements, CYScope *scope = NULL) :
- statements_(statements),
- scope_(scope)
+ CYBlock(CYStatement *statements) :
+ statements_(statements)
{
}
}
void AddPrev(CYStatement *statement) {
- CYStatement *last(statement);
- while (last->next_ != NULL)
- last = last->next_;
- last->SetNext(statements_);
+ CYSetLast(statement) = statements_;
statements_ = statement;
}
CYNewLine
};
+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)
+ {
+ }
+};
+
class CYDriver {
public:
- CYPool pool_;
+ void *scanner_;
CYState state_;
- void *scanner_;
+ std::stack<bool> in_;
- const char *data_;
- size_t size_;
- FILE *file_;
+ struct {
+ bool AtImplementation;
+ bool Function;
+ bool OpenBrace;
+ } no_;
+
+ std::istream &data_;
bool strict_;
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(std::istream &data, const std::string &filename = "");
~CYDriver();
Condition GetCondition();
virtual ~CYForInitialiser() {
}
- virtual void For(CYOutput &out) const = 0;
virtual CYExpression *Replace(CYContext &context) = 0;
+ virtual void Output(CYOutput &out, CYFlags flags) const = 0;
};
struct CYForInInitialiser {
}
virtual void ForIn(CYOutput &out, CYFlags flags) const = 0;
- virtual const char *ForEachIn() const = 0;
- virtual CYExpression *ForEachIn(CYContext &out) = 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;
return true;
}
- virtual void For(CYOutput &out) const;
virtual void ForIn(CYOutput &out, CYFlags flags) const;
+ virtual CYStatement *ForEachIn(CYContext &out, CYExpression *value);
- 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;
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 CYAssignment *Assignment(CYContext &context);
virtual CYExpression *Primitive(CYContext &context) {
return this;
}
#define CYPrecedence(value) \
+ static const unsigned Precedence_ = value; \
virtual unsigned Precedence() const { \
- return value; \
+ return Precedence_; \
}
#define CYRightHand(value) \
}
void AddPrev(CYExpression *expression) {
- CYExpression *last(expression);
- while (last->next_ != NULL)
- last = last->next_;
- last->SetNext(expressions_);
+ CYSetLast(expression) = expressions_;
expressions_ = expression;
}
virtual CYExpression *Replace(CYContext &context);
void Output(CYOutput &out, CYFlags flags) const;
+
+ virtual CYExpression *Primitive(CYContext &context);
};
+struct CYDeclaration;
+
struct CYFunctionParameter :
CYNext<CYFunctionParameter>,
CYThing
{
- CYIdentifier *name_;
+ CYForInInitialiser *initialiser_;
- CYFunctionParameter(CYIdentifier *name, CYFunctionParameter *next = NULL) :
+ CYFunctionParameter(CYForInInitialiser *initialiser, CYFunctionParameter *next = NULL) :
CYNext<CYFunctionParameter>(next),
- name_(name)
+ initialiser_(initialiser)
{
}
- void Replace(CYContext &context);
- virtual void Output(CYOutput &out) const;
+ void Replace(CYContext &context, CYBlock &code);
+ void Output(CYOutput &out) const;
};
struct CYComprehension :
CYNext<CYComprehension>,
CYThing
{
+ CYComprehension(CYComprehension *next = NULL) :
+ CYNext<CYComprehension>(next)
+ {
+ }
+
virtual const char *Name() const = 0;
virtual CYFunctionParameter *Parameter(CYContext &context) const = 0;
CYIdentifier *name_;
CYExpression *set_;
- CYForInComprehension(CYIdentifier *name, CYExpression *set) :
+ CYForInComprehension(CYIdentifier *name, CYExpression *set, CYComprehension *next = NULL) :
+ CYComprehension(next),
name_(name),
set_(set)
{
virtual void Output(CYOutput &out) const;
};
-struct CYForEachInComprehension :
+struct CYForOfComprehension :
CYComprehension
{
CYIdentifier *name_;
CYExpression *set_;
- CYForEachInComprehension(CYIdentifier *name, CYExpression *set) :
+ CYForOfComprehension(CYIdentifier *name, CYExpression *set, CYComprehension *next = NULL) :
+ CYComprehension(next),
name_(name),
set_(set)
{
{
}
+ CYVariable(const char *name) :
+ name_(new($pool) CYIdentifier(name))
+ {
+ }
+
CYPrecedence(0)
CYRightHand(false)
{
}
- void Replace(CYContext &context);
+ CYArgument *Replace(CYContext &context);
void Output(CYOutput &out) const;
};
}
virtual void ForIn(CYOutput &out, CYFlags flags) const;
-
- virtual const char *ForEachIn() const;
- virtual CYExpression *ForEachIn(CYContext &out);
+ 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 :
CYNext<CYDeclarations>,
- CYThing,
- CYForInitialiser
+ CYThing
{
CYDeclaration *declaration_;
{
}
- virtual void For(CYOutput &out) const;
+ void Replace(CYContext &context);
- virtual CYCompound *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 CYForDeclarations :
+ CYForInitialiser
+{
+ CYDeclarations *declarations_;
+
+ CYForDeclarations(CYDeclarations *declarations) :
+ declarations_(declarations)
+ {
+ }
+
+ virtual CYCompound *Replace(CYContext &context);
+ virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
struct CYVar :
CYStatement
{
virtual void Output(CYOutput &out, CYFlags flags) const;
};
-struct CYLet :
+struct CYLetStatement :
CYStatement
{
CYDeclarations *declarations_;
- CYBlock code_;
+ CYStatement *code_;
- CYLet(CYDeclarations *declarations, CYStatement *statements) :
+ CYLetStatement(CYDeclarations *declarations, CYStatement *code) :
declarations_(declarations),
- code_(statements)
+ code_(code)
{
}
virtual void Output(CYOutput &out, CYFlags flags) const;
};
-struct CYForEachIn :
+struct CYForOf :
CYStatement
{
CYForInInitialiser *initialiser_;
CYExpression *set_;
CYStatement *code_;
- CYForEachIn(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) :
+ CYForOf(CYForInInitialiser *initialiser, CYExpression *set, CYStatement *code) :
initialiser_(initialiser),
set_(set),
code_(code)
{
CYProperty *properties_;
- CYObject(CYProperty *properties) :
+ CYObject(CYProperty *properties = NULL) :
properties_(properties)
{
}
void SetLeft(CYExpression *object) {
object_ = object;
}
-
- void Replace_(CYContext &context);
};
struct CYDirectMember :
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;
};
-struct CYFunction :
- CYScope
-{
+// XXX: this should be split up into CYAnonymousFunction and CYNamedFunction (subclass)
+struct CYFunction {
CYIdentifier *name_;
CYFunctionParameter *parameters_;
CYBlock code_;
+ CYNonLocal *nonlocal_;
+ CYThisScope this_;
+
CYFunction(CYIdentifier *name, CYFunctionParameter *parameters, CYStatement *statements) :
name_(name),
parameters_(parameters),
- code_(statements, this)
+ code_(statements),
+ nonlocal_(NULL)
{
}
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 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 CYExpression *Replace(CYContext &context);
+ virtual void Output(CYOutput &out, CYFlags flags) const;
+};
+
+// XXX: this should derive from CYNamedFunction
struct CYFunctionStatement :
CYFunction,
CYStatement
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;
};
{
CYExpression *value_;
- Throw(CYExpression *value) :
+ Throw(CYExpression *value = NULL) :
value_(value)
{
}
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 :
CYExpression
{
CYAssignment_("^=", BitwiseXOr)
CYAssignment_("|=", BitwiseOr)
-#endif/*CYPARSER_HPP*/
+#endif/*CYCRIPT_PARSER_HPP*/
projects / cycript.git / blobdiff