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ObxCGen2.cpp
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/*
* Copyright 2021 Rochus Keller <mailto:me@rochus-keller.ch>
*
* This file is part of the Oberon+ parser/compiler library.
*
* The following is the license that applies to this copy of the
* library. For a license to use the library under conditions
* other than those described here, please email to me@rochus-keller.ch.
*
* GNU General Public License Usage
* This file may be used under the terms of the GNU General Public
* License (GPL) versions 2.0 or 3.0 as published by the Free Software
* Foundation and appearing in the file LICENSE.GPL included in
* the packaging of this file. Please review the following information
* to ensure GNU General Public Licensing requirements will be met:
* http://www.fsf.org/licensing/licenses/info/GPLv2.html and
* http://www.gnu.org/copyleft/gpl.html.
*/
#include "ObxCGen2.h"
#include "ObxAst.h"
#include "ObErrors.h"
#include "ObxProject.h"
#include <QtDebug>
#include <QFile>
#include <QDir>
#include <QCryptographicHash>
#include <QCoreApplication>
#include <QDateTime>
using namespace Obx;
using namespace Ob;
#ifndef OBX_AST_DECLARE_SET_METATYPE_IN_HEADER
Q_DECLARE_METATYPE( Obx::Literal::SET )
#endif
#define _MY_GENERICS_
struct ObxCGenCollector : public AstVisitor
{
QList<Procedure*> allProcs;
QList<Record*> allRecords;
Module* thisMod;
void collect(Type* t)
{
switch( t->getTag() )
{
case Thing::T_Array:
collect(cast<Array*>(t)->d_type.data());
break;
case Thing::T_Record:
{
Record* r = cast<Record*>(t);
allRecords.append( r );
foreach( const Ref<Field>& f, r->d_fields )
{
collect(f->d_type.data());
}
if( r->d_base )
collect(r->d_base.data());
}
break;
case Thing::T_Pointer:
collect(cast<Pointer*>(t)->d_to.data());
break;
case Thing::T_ProcType:
{
ProcType* pt = cast<ProcType*>(t);
foreach( const Ref<Parameter>& p, pt->d_formals )
collect(p->d_type.data());
if( pt->d_return )
collect(pt->d_return.data());
}
break;
case Thing::T_QualiType:
break;
}
}
void collect( Named* n )
{
switch( n->getTag() )
{
case Thing::T_Procedure:
{
Procedure* p = cast<Procedure*>(n);
allProcs.append(cast<Procedure*>(n));
p->accept(this);
}
break;
case Thing::T_NamedType:
collect(n->d_type.data());
break;
case Thing::T_Variable:
case Thing::T_Parameter:
case Thing::T_LocalVar:
collect(n->d_type.data());
break;
}
}
void visit( Module* me )
{
thisMod = me;
foreach( const Ref<Named>& n, me->d_order )
collect(n.data());
}
void visit( Procedure* me)
{
foreach( const Ref<Named>& n, me->d_order )
collect(n.data());
}
};
#if 0
struct ObxCGenCollector2 : public AstVisitor
{
QSet<ArgExpr*> boundCalls;
void visit( Call* me)
{
if( me->d_what )
me->d_what->accept(this);
}
void visit( Return* me )
{
if( me->d_what )
me->d_what->accept(this);
}
void visit( Assign* me)
{
me->d_lhs->accept(this);
me->d_rhs->accept(this);
}
void visit( IfLoop* me)
{
foreach( const Ref<Expression>& e, me->d_if )
e->accept(this);
}
void visit( ForLoop* me)
{
me->d_from->accept(this);
me->d_to->accept(this);
if( me->d_by )
me->d_by->accept(this);
}
void visit( CaseStmt* me)
{
me->d_exp->accept(this);
foreach( const CaseStmt::Case& c, me->d_cases )
foreach( const Ref<Expression>& e, c.d_labels )
e->accept(this);
}
void visit( SetExpr* me)
{
foreach( const Ref<Expression>& e, me->d_parts )
e->accept(this);
}
void visit( UnExpr* me)
{
me->d_sub->accept(this);
}
void visit( IdentLeaf* ) {} // NOP
void visit( IdentSel* me)
{
me->d_sub->accept(this);
}
void visit( BinExpr* me)
{
me->d_lhs->accept(this);
me->d_rhs->accept(this);
}
void visit( ArgExpr* me )
{
me->d_sub->accept(this);
if( me->getUnOp() != UnExpr::CALL || me->d_sub->getUnOp() == UnExpr::DEREF )
return; // supercall
Type* subT = me->d_sub->d_type->derefed();
Q_ASSERT( subT && subT->getTag() == Thing::T_ProcType );
ProcType* pt = cast<ProcType*>( subT );
if( pt->d_typeBound )
boundCalls.insert(me); // applies to both named methods and delegates (fp-object aggregate)
}
};
#endif
struct ObxCGenImp : public AstVisitor
{
Errors* err;
Module* thisMod;
int level;
QTextStream h,b;
bool ownsErr;
bool debug; // generate line pragmas
quint32 anonymousDeclNr; // starts with one, zero is an invalid slot
#if 0
QHash<ArgExpr*,int> temps;
#endif
Procedure* curProc;
Named* curVarDecl;
QSet<Record*> declToInline;
ObxCGenImp():err(0),thisMod(0),ownsErr(false),level(0),debug(false),anonymousDeclNr(1),curProc(0),curVarDecl(0){}
inline QByteArray ws() { return QByteArray(level*4,' '); }
static QByteArray escape(const QByteArray& str)
{
static QSet<QByteArray> keywords;
if( keywords.isEmpty() )
{
keywords << "auto" << "break" << "case" << "char" << "const" << "continue" << "default"
<< "do" << "double" << "else" << "enum" << "extern" << "float" << "for" << "goto"
<< "if" << "inline" << "int" << "long" << "register" << "restrict" << "return" << "short"
<< "signed" << "sizeof" << "static" << "struct" << "switch" << "typedef" << "union"
<< "unsigned" << "void" << "volatile" << "while" << "_Bool" << "_Complex" << "_Imaginary"
<< "assert" << "main";
}
if( keywords.contains(str) )
return str + "_"; // avoid collision with C keywords
else
return str;
}
static void dedication(QTextStream& out)
{
out << "// Generated by " << qApp->applicationName() << " " << qApp->applicationVersion() << " on "
<< QDateTime::currentDateTime().toString(Qt::ISODate) << endl << endl;
}
static inline Type* derefed( Type* t )
{
if( t )
return t->derefed();
else
return 0;
}
QByteArray dottedName( Named* n, bool withModule = true )
{
// concatenate names up to but not including module
QByteArray name = n->d_name; // TODO: check escape is done by callers
Named* scope = n->d_scope;
if( n->getTag() == Thing::T_Procedure )
{
Procedure* proc = cast<Procedure*>(n);
if( proc->d_receiverRec )
{
// if the scope is a bound proc follow its receiver, but first use the proc name.
// this is necessary because procs bound to different recs can have the same name and
// even have the same name as ordinary procs, so there is a risk of duplicate names when
// just following the normal scope
scope = proc->d_receiverRec->findDecl();
Q_ASSERT( scope );
}
}
if( scope )
{
const int tag = scope->getTag();
if( tag != Thing::T_Module )
{
return dottedName(scope) + "$" + name;
}else if( withModule )
return moduleRef(cast<Module*>(scope)) + "$" + name;
}
return name;
}
static QByteArray moduleRef(Module* m)
{
QByteArray name = m->d_fullName.join('$');
if( name.isEmpty() )
name = m->d_name; // happens with built-in modules like Out
if( !m->d_metaActuals.isEmpty() )
{
QCryptographicHash hash(QCryptographicHash::Md5);
hash.addData(m->formatMetaActuals());
name += "$" + hash.result().toHex();
}
return escape(name);
}
QByteArray classRef( Named* className )
{
Q_ASSERT( className && className->getTag() == Thing::T_NamedType );
Module* m = className->getModule();
return dottedName(className); // dotted because also records nested in procs are lifted to module level
}
QByteArray classRef( Type* rec )
{
rec = derefed(rec);
return classRef(cast<Record*>(rec));
}
QByteArray classRef( Record* r )
{
Named* n = r->findDecl();
if( n && n->getTag() == Thing::T_NamedType )
return classRef(n);
else
{
#ifdef _DEBUG
Q_ASSERT( r->d_slotValid );
#endif
if( n == 0 )
n = r->findDecl(true);
Module* m = n ? n->getModule() : 0;
if( m == 0 )
m = thisMod;
return moduleRef(m) + "$" + QByteArray::number(r->d_slot);
}
}
static inline bool passByRef( Parameter* p )
{
return p->d_var;
}
QByteArray formatFormals( ProcType* pt, bool withName = true, Parameter* receiver = 0 )
{
QByteArray res = "(";
if( pt->d_typeBound )
{
res += "void*" + ( withName && receiver ? " " + escape(receiver->d_name) : "" );
}
for( int i = 0; i < pt->d_formals.size(); i++ )
{
if( i != 0 || pt->d_typeBound )
res += ", ";
Type* t = pt->d_formals[i]->d_type.data();
Type* td = derefed(t);
Pointer p;
if( passByRef(pt->d_formals[i].data()) || td->getTag() == Thing::T_Array )
{
// TODO: avoid passing by ref when IN with non-structured types
t = &p;
p.d_to = pt->d_formals[i]->d_type.data();
p.d_decl = pt->d_formals[i].data();
p.d_loc = pt->d_formals[i]->d_loc;
}
res += formatType( t, withName ? escape(pt->d_formals[i]->d_name) : "" );
}
if( pt->d_varargs )
{
if( !pt->d_formals.isEmpty() )
res += ", ";
res += "...";
}
res += ")";
return res;
}
inline static QByteArray formatBaseType(int t)
{
switch( t )
{
case Type::BYTE:
case Type::BOOLEAN:
return "uint8_t";
case Type::CHAR:
return "char";
case Type::WCHAR:
return "wchar_t";
case Type::SHORTINT:
return "int16_t";
case Type::INTEGER:
return "int32_t";
case Type::LONGINT:
return "int64_t";
case Type::REAL:
return "float";
case Type::LONGREAL:
return "double";
case Type::SET:
return "uint32_t";
case Type::CVOID:
return "void";
default:
return "?basetype?";
}
}
QByteArray arrayType(int dims, const RowCol& loc)
{
switch( dims )
{
case 1:
return "struct OBX$Array$1";
case 2:
return "struct OBX$Array$2";
case 3:
return "struct OBX$Array$3";
case 4:
return "struct OBX$Array$4";
case 5:
return "struct OBX$Array$5";
default:
err->error(Errors::Generator, Loc(loc,thisMod->d_file),
"C code generator cannot handle array dimensions > 5");
return "???";
}
}
QByteArray formatType( Type* t, const QByteArray& name = QByteArray() )
{
if( t == 0 )
return "void" + ( !name.isEmpty() ? " " + name : "" );
switch(t->getTag())
{
case Thing::T_BaseType:
return formatBaseType(t->getBaseType()) + ( !name.isEmpty() ? " " + name : "" );
case Thing::T_Enumeration:
return "int" + ( !name.isEmpty() ? " " + name : "" );
case Thing::T_Array:
/*
arrays or pointer to arrays can be the types of fields, variables, locals and parameters.
in general taking the address of an array is not supported, but with VAR/IN params an implicit
address is handed into the procedure; it still cannot be converted to a pointer though.
in contrast arrays can be dynamically created, even with a length not known at compile time.
we need a way to transport the dim/size of an array with the pointer. it's inefficient to explicitly
store these data with value arrays where it is known at compile time and invariant. with open
arrays (or VAR/IN parameter) it is unavoidable though. If we add this information to the array object
we obviously need two types of array objects, one with and one without dim/size information.
A possible solution is to add dim/size information to the pointer/var param value. the dim number
and type doens't change and is always known at compile time; so the pointer/var param could look
e.g. like struct { uint32_t $0; void* $a; } or struct { uint32_t $0,$1; void* $a; } etc.
if this information is in the array object instead we get a problem when passing either a value array
(which has no size info) or a dereferenced array pointer (whose object has size info) is passed
to a var parameter (the body of the proc has no clue which kind was passed).
*/
{
Array* a = cast<Array*>(t);
if( a->d_type.isNull() )
return QByteArray(); // already reported
QByteArray res;
if( a->d_lenExpr.isNull() || name.isEmpty() )
res = "*" + ( !name.isEmpty() ? " " + name : "" );
else
{
res = name;
res += "[";
res += QByteArray::number(a->d_len);
res += "]";
}
return formatType( a->d_type.data(), res );
}
break;
case Thing::T_Pointer:
{
Pointer* me = cast<Pointer*>(t);
if( me->d_to.isNull() )
break;
QByteArray res = "*" + ( !name.isEmpty() ? " " + name : "" );
Type* td = derefed(me->d_to.data());
if( td && td->getTag() == Thing::T_Array && !td->d_unsafe )
{
Array* a = cast<Array*>(td);
int dims = 0;
a->getTypeDim(dims);
res = arrayType(dims, t->d_loc);
res += ( !name.isEmpty() ? " " + name : "" );
return res;
}
// else
return formatType( me->d_to.data(), res );
}
break;
case Thing::T_ProcType:
{
ProcType* pt = cast<ProcType*>(t);
if( pt->d_typeBound )
return "struct OBX$Deleg" + ( !name.isEmpty() ? " " + name : "" );
const QByteArray returnType = formatType(pt->d_return.data());
return returnType + " (*" + name + ")" + formatFormals(pt); // name can legally be empty
}
break;
case Thing::T_QualiType:
{
QualiType* me = cast<QualiType*>(t);
#if 0
Named* n = me->d_quali->getIdent();
if( n )
{
Module* m = n->getModule();
if( m )
return moduleRef(m) + "$" + dottedName(n);
else
return formatType(n->d_type.data());
}else
return "???";
#else
return formatType(me->d_quali->d_type.data(),name);
#endif
}
break;
case Thing::T_Record:
{
// create a local dummy struct with the same memory layout as the original struct, but avoiding
// the declaration order deadlock caused by mutual dependency of generic modules with the ones
// where the instantiated types are declared
Record* r = cast<Record*>(t);
if( !thisMod->d_metaActuals.isEmpty() && curVarDecl && declToInline.contains(r) )
{
QByteArray res = "struct /*" + classRef(r) + "*/ { ";
if( !r->d_unsafe )
res += "void* class$; ";
QList<Field*> fields = r->getOrderedFields();
foreach( Field* f, fields )
res += formatType(f->d_type.data(), escape(f->d_name) ) + "; ";
res += "}";
return res + ( !name.isEmpty() ? " " + name : "" );
}else
return ( t->d_union ? "union " : "struct " ) +
classRef(r) + ( !name.isEmpty() ? " " + name : "" );
}
break;
default:
Q_ASSERT(false);
}
return "?type?" + ( !name.isEmpty() ? " " + name : "" );
}
void allocRecordDecl(Record* r)
{
if( r->d_slotValid )
return; // can happen e.g. with VAR foo, bar: RECORD ch: CHAR; i: INTEGER END;
Named* n = r->findDecl();
if( n == 0 || n->getTag() != Thing::T_NamedType )
{
r->d_slot = anonymousDeclNr++;
r->d_slotValid = true;
}
}
void emitRecordDecl(Record* r)
{
if( r->d_slotAllocated )
return;
r->d_slotAllocated = true;
const QByteArray className = classRef(r);
h << ws() << "struct " << className << "$Class$;" << endl;
h << ws() << "struct " << className << " {" << endl;
level++;
if( !r->d_unsafe )
h << ws() << "struct " << className << "$Class$* class$;" << endl;
QList<Field*> fields = r->getOrderedFields();
foreach( Field* f, fields )
f->accept(this);
level--;
h << "};" << endl << endl;
}
void emitClassDecl(Record* r)
{
if( r->d_unsafe )
return;
const QByteArray className = classRef(r);
h << ws() << "struct " << className << "$Class$ {" << endl;
b << ws() << "struct " << className << "$Class$ " << className << "$class$ = { " << endl;
level++;
// we need a valid type in any case, thus use this type if no base rec
h << ws() << "struct " << classRef(r->d_baseRec ? r->d_baseRec : r ) << "$Class$* super$;" << endl;
if( r->d_baseRec )
b << ws() << "&" << classRef(r->d_baseRec) << "$class$," << endl;
else
b << ws() << "0," << endl;
QList<Procedure*> mm = r->getOrderedMethods();
foreach( Procedure* m, mm )
{
ProcType* pt = m->getProcType();
QByteArray name = escape(m->d_name);
name = "(*" + name + ")";
name += formatFormals(pt,true,m->d_receiver.data());
name = formatType(pt->d_return.data(), name);
h << ws() << name << ";" << endl;
name = dottedName(m);
b << ws() << name << "," << endl;
}
level--;
b << "};" << endl << endl;
h << "};" << endl;
h << "struct " << className << "$Class$ " << className << "$class$;" << endl << endl;
}
void visit( Module* me)
{
const QByteArray name = moduleRef(me);
h << "#ifndef _" << name.toUpper() << "_" << endl;
h << "#define _" << name.toUpper() << "_" << endl << endl;
dedication(h);
h << "#include \"OBX.Runtime.h\"" << endl;
dedication(b);
b << "#include \"" << thisMod->getName() << ".h\"" << endl;
ObxCGenCollector co;
me->accept(&co);
foreach( Import* imp, me->d_imports )
{
if(imp->d_mod->d_synthetic )
continue; // ignore SYSTEM
h << "#include \"" << imp->d_mod->getName() << ".h\"" << endl;
if( !imp->d_mod.isNull() && !imp->d_mod->d_metaActuals.isEmpty() )
{
for( int i = 0; i < imp->d_mod->d_metaActuals.size(); i++ )
{
Type* at = imp->d_mod->d_metaActuals[i].data();
//Q_ASSERT( !at->d_slotValid );
at->d_slot = i;
at->d_slotValid = true;
at->d_metaActual = true;
}
}
}
h << endl;
h << "// Declaration of module " << me->getName() << endl << endl;
if( !me->d_metaActuals.isEmpty() )
{
QSet<Module*> imports;
for( int i = 0; i < me->d_metaActuals.size(); i++ )
{
Q_ASSERT( me->d_metaActuals[i]->getTag() == Thing::T_QualiType );
QualiType* t = cast<QualiType*>(me->d_metaActuals[i].data());
Named* n = t->d_quali->getIdent();
Q_ASSERT(n);
Module* m = n->getModule();
if( m ) // 0 in case of e.g. INTEGER
imports.insert(m);
Type* td = t->derefed();
if( td->getTag() == Thing::T_Record )
{
h << formatType(t) << ";" << endl;
declToInline.insert(cast<Record*>(td));
}
}
foreach(Module* m, imports)
b << "#include \"" << m->getName() << ".h\"" << endl;
}
b << endl;
if( !Record::calcDependencyOrder(co.allRecords).isEmpty() )
err->error(Errors::Generator, thisMod->d_file, 1,1, // shouldn't acutally happen since caught by validator
"circular record by value dependencies are not supported by C");
foreach( Record* r, co.allRecords )
allocRecordDecl(r);
foreach( Record* r, co.allRecords )
emitRecordDecl(r);
foreach( const Ref<Named>& n, me->d_order )
{
if( n->getTag() == Thing::T_Variable )
n->accept(this);
}
foreach( Procedure* p, co.allProcs )
p->accept(this);
foreach( Record* r, co.allRecords )
emitClassDecl(r);
h << "void " << name << "$init$(void);" << endl;
b << "static int initDone$ = 0;" << endl;
b << "void " << name << "$init$(void) {" << endl;
#if 0
temps.clear();
#endif
level++;
b << ws() << "if(initDone$) return; else initDone$ = 1;" << endl;
foreach( Import* imp, me->d_imports )
{
if(imp->d_mod->d_synthetic )
continue; // ignore SYSTEM
b << ws() << moduleRef(imp->d_mod.data()) + "$init$();" << endl;
}
foreach( const Ref<Named>& n, me->d_order )
{
if( n->getTag() == Thing::T_Variable )
{
int f = isStructuredOrArrayPointer(n->d_type.data() );
if( f )
{
const QByteArray name = moduleRef(thisMod)+"$"+n->d_name;
b << ws() << "memset(&" << name << ",0,sizeof(" << name << "));" << endl;
if( f == IsRecord )
b << ws() << moduleRef(thisMod)+"$"+n->d_name << ".class$ = &" << classRef(n->d_type.data()) << "$class$;" << endl;
}
}
}
b << ws() << "void* $;" << endl;
foreach( const Ref<Statement>& s, me->d_body )
{
emitStatement(s.data());
}
level--;
b << "}" << endl;
h << "#endif" << endl;
}
void visit( Field* me)
{
curVarDecl = me;
h << ws() << formatType(me->d_type.data(), escape(me->d_name) ) << ";" << endl;
curVarDecl = 0;
}
enum { NotStructured = 0, IsArrayPointer, IsRecord, IsArray, IsDeleg };
int isStructuredOrArrayPointer(Type* t)
{
Type* td = derefed(t);
if( td == 0 )
return 0;
const int tag = td->getTag();
if( tag == Thing::T_ProcType && td->d_typeBound )
return IsDeleg;
if( td->isStructured() )
{
if( tag == Thing::T_Record )
return IsRecord;
else
return IsArray;
}
if( tag == Thing::T_Pointer )
{
Pointer* p = cast<Pointer*>(td);
td = derefed(p->d_to.data());
if( td && td->getTag() == Thing::T_Array )
return IsArrayPointer;
}
//else
return 0;
}
void visit( Variable* me )
{
curVarDecl = me;
h << ws() << "extern " << formatType(me->d_type.data(), moduleRef(thisMod)+"$"+me->d_name ) << ";" << endl;
b << ws() << formatType(me->d_type.data(), moduleRef(thisMod)+"$"+me->d_name );
if( !isStructuredOrArrayPointer(me->d_type.data()) )
b << " = 0";
b << ";" << endl;
curVarDecl = 0;
}
void emitStatement(Statement* s)
{
#if 0
// do it with just one void* instead of a lot of new vars
ObxCGenCollector2 v;
s->accept(&v);
foreach( ArgExpr* a, v.boundCalls )
{
const int temp = temps.size()+1;
temps[ a ] = temp; // start with 1, 0 is invalid
Named* id = a->d_sub->getIdent();
if( id && id->getTag() == Thing::T_Procedure )
{
Procedure* p = cast<Procedure*>(id);
Q_ASSERT( p->d_receiverRec );
// we later use this variable to store the this pointer which is used to dispatch the
// method and to pass this to the method
b << ws() << "struct " << classRef(p->d_receiverRec) << "* $" << temp << ";" << endl;
}
}
#endif
s->accept(this);
}
void visit( Procedure* me)
{
curProc = me;
#if 0
temps.clear();
#endif
ProcType* pt = me->getProcType();
QByteArray name = dottedName(me);
name += formatFormals(pt,true,me->d_receiver.data());
name = formatType(pt->d_return.data(), name);
h << name << ";" << endl;
b << name << " {" << endl;
level++;
foreach( const Ref<Named>& n, me->d_order )
{
switch( n->getTag() )
{
case Thing::T_LocalVar:
{
curVarDecl = n.data();
b << ws() << formatType( n->d_type.data(), escape(n->d_name) );
curVarDecl = 0;
const int f = isStructuredOrArrayPointer(n->d_type.data() );
if( !f )
b << " = 0";
b << ";" << endl;
if( f )
b << ws() << "memset(&" << escape(n->d_name) << ",0,sizeof(" << escape(n->d_name) << "));" << endl;
if( f == IsRecord )
b << ws() << escape(n->d_name) << ".class$ = &" << classRef(n->d_type.data()) << "$class$;" << endl;
}
break;
case Thing::T_Parameter:
{
Parameter* p = cast<Parameter*>(n.data());
Type* td = derefed(p->d_type.data());
if( p->d_receiver )
b << ws() << formatType(me->d_receiverRec) << "* this$ = " << escape(p->d_name) << ";" << endl;
else if( !p->d_var && td->getTag() == Thing::T_Array )
{
// array passed by value; make a copy of it
Array* a = cast<Array*>(td);
QList<Array*> dims = a->getDims();
b << ws() << escape(p->d_name) << ".$a = OBX$Copy(" << escape(p->d_name) << ".$a,";
for(int i = 0; i < dims.size(); i++ )
{
if( i != 0 )
b << " * ";
b << escape(p->d_name) << ".$" << (i+1);
}
b << " * sizeof(" << formatType(dims.last()->d_type.data()) << "));" << endl;
b << ws() << escape(p->d_name) << ".$s = 0;" << endl;
}
}
break;
}
}
b << ws() << "void* $;" << endl;
foreach( const Ref<Statement>& s, me->d_body )
{
emitStatement(s.data());
}
level--;
b << "}" << endl << endl;
curProc = 0;
}
#if 0
QVector<uint> toNumbers(const QString& in)
{
QVector<uint> res(in.size());
for( int i = 0; i < in.size(); i++ )
res[i] = in[i].unicode();
return res;
}
#endif
void emitConst(quint8 basetype, const QVariant& val, const RowCol& loc )
{
switch( basetype )
{
case Type::BOOLEAN:
case Type::SHORTINT:
case Type::INTEGER:
case Type::BYTE:
b << val.toInt();
break;
case Type::LONGINT:
b << val.toLongLong();
break;
case Type::ENUMINT:
b << val.toUInt();
break;
case Type::REAL:
case Type::LONGREAL:
b << val.toDouble();
break;
case Type::NIL:
b << "0";
break;
case Type::STRING:
case Type::WSTRING:
{
QString str = val.toString();
str.replace('\\', "\\\\");
// TEST qDebug() << "Literal:" << str << toNumbers(str);
// no L prefix, we want UTF-8 in any case
b << "(const struct OBX$Array$1){";
b << str.length()+1 << ",0,";
b << "OBX$FromUtf(\"" << str << "\"," << str.length()+1 << ","
<< int(basetype==Type::WSTRING) << ")";
b << "}";
}
break;
case Type::BYTEARRAY:
{
const QByteArray ba = val.toByteArray();
b << "(const struct OBX$Array$1){";
b << ba.length() << ",1,&(const uint8_t[]){";
for( int i = 0; i < ba.size(); i++ )
b << "0x" << QByteArray::number(quint8(ba[i]),16) << ", ";
b << "}}";
}
break;
case Type::CHAR:
case Type::WCHAR:
b << "0x" << QByteArray::number(val.toUInt(),16);
break;
case Type::SET:
{
Literal::SET s = val.value<Literal::SET>();
b << "0x" << QByteArray::number((quint32)s.to_ulong(),16);
}
break;
default:
Q_ASSERT(false);
}
}
void visit( Literal* me)
{
Type* td = derefed(me->d_type.data());
Q_ASSERT( td && ( td->getTag() == Thing::T_BaseType || td->getTag() == Thing::T_Enumeration) );
// Enumeration has basetype ENUMINT
emitConst( td->getBaseType(), me->d_val, me->d_loc );
}
void visit( IdentLeaf* me)
{
Named* id = me->getIdent();
if( id == 0 )
return; // already reported
const bool doCast = hasGenericRecType(id);
if( doCast )
b << "(*(" << formatType(id->d_type.data()) << "*)&";
switch( id->getTag() )
{
case Thing::T_Const:
{
Type* td = derefed(me->d_type.data() );
Q_ASSERT( td && ( td->getTag() == Thing::T_BaseType || td->getTag() == Thing::T_Enumeration ) );
emitConst( td->getBaseType(), cast<Const*>(id)->d_val, me->d_loc );
}
break;
case Thing::T_Import:
// NOP
break;
case Thing::T_Variable:
b << dottedName(id);
break;
case Thing::T_LocalVar:
b << escape(id->d_name);
break;
case Thing::T_Parameter:
{
Parameter* p = cast<Parameter*>(id);
Type* td = derefed(me->d_type.data() );
const bool doDeref = p->d_var && td->getTag() != Thing::T_Array;
if( doDeref )
b << "(*";
if( p->d_receiver )
b << "this$";
else
b << escape(id->d_name);
if( doDeref )
b << ")";
}
break;
case Thing::T_NamedType:
// NOP
break;
case Thing::T_Procedure:
b << dottedName(id);
break;
case Thing::T_BuiltIn:
// NOP