Separated out Objective-C and C language extensions using a new Filter.sh shell scrip...

[cycript.git] / ObjectiveC.mm

#include "Replace.hpp"
#include "ObjectiveC.hpp"

#include <objc/runtime.h>
#include <sstream>

void CYCategory::Output(CYOutput &out, CYFlags flags) const {
    out << "(function($cys,$cyp,$cyc,$cyn,$cyt){";
    out << "$cyp=object_getClass($cys);";
    out << "$cyc=$cys;";
    if (messages_ != NULL)
        messages_->Output(out, true);
    out << "})(";
    name_->ClassName(out, true);
    out << ')';
    out << ';';
}

void CYClass::Output(CYOutput &out, CYFlags flags) const {
    // XXX: I don't necc. need the ()s
    out << "(function($cys,$cyp,$cyc,$cyn,$cyt,$cym){";
    out << "$cyp=object_getClass($cys);";
    out << "$cyc=objc_allocateClassPair($cys,";
    if (name_ != NULL)
        name_->ClassName(out, false);
    else
        out << "$cyq(\"CY$\")";
    out << ",0);";
    out << "$cym=object_getClass($cyc);";
    if (fields_ != NULL)
        fields_->Output(out);
    if (messages_ != NULL)
        messages_->Output(out, false);
    out << "objc_registerClassPair($cyc);";
    out << "return $cyc;";
    out << "}(";
    if (super_ != NULL)
        super_->Output(out, CYPA, CYNoFlags);
    else
        out << "null";
    out << "))";
}

void CYClassExpression::Output(CYOutput &out, CYFlags flags) const {
    CYClass::Output(out, flags);
}

void CYClassStatement::Output(CYOutput &out, CYFlags flags) const {
    CYClass::Output(out, flags);
}

void CYField::Output(CYOutput &out) const {
    // XXX: implement!
}

void CYMessage::Output(CYOutput &out, bool replace) const {
    if (next_ != NULL)
        next_->Output(out, replace);
    out << "$cyn=new Selector(\"";
    for (CYMessageParameter *parameter(parameters_); parameter != NULL; parameter = parameter->next_)
        if (parameter->tag_ != NULL) {
            out << *parameter->tag_;
            if (parameter->name_ != NULL)
                out << ':';
        }
    out << "\");";
    out << "$cyt=$cyn.type($cy" << (instance_ ? 's' : 'p') << ')' << ';';
    out << (replace ? "class_replaceMethod" : "class_addMethod") << '(' << (instance_ ? "$cyc" : "$cym") << ',' << "$cyn" << ',';
    out << "new Functor(function(self,_cmd";
    for (CYMessageParameter *parameter(parameters_); parameter != NULL; parameter = parameter->next_)
        if (parameter->name_ != NULL)
            out << ',' << *parameter->name_;
    out << "){return function(){";
    if (statements_ != NULL)
        statements_->Multiple(out);
    out << "}.call(self);},$cyt),$cyt);";
}

void CYSelector::Output(CYOutput &out, CYFlags flags) const {
    out << "@selector" << '(' << name_ << ')';
}

void CYSelectorPart::Output(CYOutput &out) const {
    out << name_;
    if (value_)
        out << ':';
    out << next_;
}

void CYSend::Output(CYOutput &out, CYFlags flags) const {
    out << '[';
    self_->Output(out, CYPA, CYNoFlags);
    out << ']';

    std::ostringstream name;
    for (CYArgument *argument(arguments_); argument != NULL; argument = argument->next_)
        if (argument->name_ != NULL) {
            name << *argument->name_;
            if (argument->value_ != NULL)
                name << ':';
        }

    out.out_ << reinterpret_cast<void *>(sel_registerName(name.str().c_str()));
    for (CYArgument *argument(arguments_); argument != NULL; argument = argument->next_)
        if (argument->value_ != NULL) {
            out << ',';
            argument->value_->Output(out, CYPA, CYNoFlags);
        }
    out << ')';
}

CYStatement *CYCategory::Replace(CYContext &context) {
    CYVariable *cyc($V("$cyc")), *cys($V("$cys"));

    return $E($C1($F(NULL, $P5("$cys", "$cyp", "$cyc", "$cyn", "$cyt"), $$->*
        $E($ CYAssign($V("$cyp"), $C1($V("object_getClass"), cys)))->*
        $E($ CYAssign(cyc, cys))->*
        messages_->Replace(context, true)
    ), name_->ClassName(context, true)));
}

CYExpression *CYClass::Replace_(CYContext &context) {
    CYVariable *cyc($V("$cyc")), *cys($V("$cys"));

    CYExpression *name(name_ != NULL ? name_->ClassName(context, false) : $C1($V("$cyq"), $S("CY$")));

    return $C1($F(NULL, $P6("$cys", "$cyp", "$cyc", "$cyn", "$cyt", "$cym"), $$->*
        $E($ CYAssign($V("$cyp"), $C1($V("object_getClass"), cys)))->*
        $E($ CYAssign(cyc, $C3($V("objc_allocateClassPair"), cys, name, $D(0))))->*
        $E($ CYAssign($V("$cym"), $C1($V("object_getClass"), cyc)))->*
        fields_->Replace(context)->*
        messages_->Replace(context, false)->*
        $E($C1($V("objc_registerClassPair"), cyc))->*
        $ CYReturn(cyc)
    ), super_ == NULL ? $ CYNull() : super_);
}

CYExpression *CYClassExpression::Replace(CYContext &context) {
    return Replace_(context);
}

CYStatement *CYClassStatement::Replace(CYContext &context) {
    return $E(Replace_(context));
}

CYStatement *CYField::Replace(CYContext &context) const {
    return NULL;
}

CYStatement *CYMessage::Replace(CYContext &context, bool replace) const { $T(NULL)
    CYVariable *cyn($V("$cyn"));
    CYVariable *cyt($V("$cyt"));

    return $ CYBlock($$->*
        next_->Replace(context, replace)->*
        $E($ CYAssign(cyn, parameters_->Selector(context)))->*
        $E($ CYAssign(cyt, $C1($M(cyn, $S("type")), $V(instance_ ? "$cys" : "$cyp"))))->*
        $E($C4($V(replace ? "class_replaceMethod" : "class_addMethod"),
            $V(instance_ ? "$cyc" : "$cym"),
            cyn,
            $N2($V("Functor"), $F(NULL, $P2("self", "_cmd", parameters_->Parameters(context)), $$->*
                $ CYReturn($C1($M($F(NULL, NULL, statements_), $S("call")), $V("self")))
            ), cyt),
            cyt
        ))
    );
}

CYFunctionParameter *CYMessageParameter::Parameters(CYContext &context) const { $T(NULL)
    CYFunctionParameter *next(next_->Parameters(context));
    return name_ == NULL ? next : $ CYFunctionParameter(name_, next);
}

CYSelector *CYMessageParameter::Selector(CYContext &context) const {
    return $ CYSelector(SelectorPart(context));
}

CYSelectorPart *CYMessageParameter::SelectorPart(CYContext &context) const { $T(NULL)
    CYSelectorPart *next(next_->SelectorPart(context));
    return tag_ == NULL ? next : $ CYSelectorPart(tag_, name_ != NULL, next);
}

CYExpression *CYSelector::Replace(CYContext &context) {
    return $N1($V("Selector"), name_->Replace(context));
}

CYString *CYSelectorPart::Replace(CYContext &context) {
    std::ostringstream str;
    for (const CYSelectorPart *part(this); part != NULL; part = part->next_) {
        if (part->name_ != NULL)
            str << part->name_->Value();
        if (part->value_)
            str << ':';
    }
    return $S(apr_pstrdup(context.pool_, str.str().c_str()));
}

CYExpression *CYSend::Replace(CYContext &context) {
    std::ostringstream name;
    CYArgument **argument(&arguments_);

    while (*argument != NULL) {
        if ((*argument)->name_ != NULL) {
            name << *(*argument)->name_;
            (*argument)->name_ = NULL;
            if ((*argument)->value_ != NULL)
                name << ':';
        }

        if ((*argument)->value_ == NULL)
            *argument = (*argument)->next_;
        else
            argument = &(*argument)->next_;
    }

    SEL sel(sel_registerName(name.str().c_str()));
    double address(static_cast<double>(reinterpret_cast<uintptr_t>(sel)));

    return $C2($V("objc_msgSend"), self_, $D(address), arguments_);
}