blob: 85398b2249f80d255915a024e3d1b28e8c40b400 [file] [log] [blame]
//========================================================================
//
// Object.cc
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2008, 2010, 2012, 2017, 2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2013 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#include <config.h>
#include <stddef.h>
#include "Object.h"
#include "Array.h"
#include "Dict.h"
#include "Error.h"
#include "Stream.h"
#include "XRef.h"
//------------------------------------------------------------------------
// Object
//------------------------------------------------------------------------
static const char *objTypeNames[numObjTypes] = {
"boolean",
"integer",
"real",
"string",
"name",
"null",
"array",
"dictionary",
"stream",
"ref",
"cmd",
"error",
"eof",
"none",
"integer64",
"dead"
};
Object Object::copy() const {
CHECK_NOT_DEAD;
Object obj;
std::memcpy(reinterpret_cast<void*>(&obj), this, sizeof(Object));
switch (type) {
case objString:
obj.string = string->copy();
break;
case objName:
case objCmd:
obj.cString = copyString(cString);
break;
case objArray:
array->incRef();
break;
case objDict:
dict->incRef();
break;
case objStream:
stream->incRef();
break;
default:
break;
}
return obj;
}
Object Object::fetch(XRef *xref, int recursion) const {
CHECK_NOT_DEAD;
return (type == objRef && xref) ?
xref->fetch(ref, recursion) : copy();
}
void Object::free() {
switch (type) {
case objString:
delete string;
break;
case objName:
case objCmd:
gfree(cString);
break;
case objArray:
if (!array->decRef()) {
delete array;
}
break;
case objDict:
if (!dict->decRef()) {
delete dict;
}
break;
case objStream:
if (!stream->decRef()) {
delete stream;
}
break;
default:
break;
}
type = objNone;
}
const char *Object::getTypeName() const {
return objTypeNames[type];
}
void Object::print(FILE *f) const {
int i;
switch (type) {
case objBool:
fprintf(f, "%s", booln ? "true" : "false");
break;
case objInt:
fprintf(f, "%d", intg);
break;
case objReal:
fprintf(f, "%g", real);
break;
case objString:
fprintf(f, "(");
fwrite(string->c_str(), 1, string->getLength(), f);
fprintf(f, ")");
break;
case objName:
fprintf(f, "/%s", cString);
break;
case objNull:
fprintf(f, "null");
break;
case objArray:
fprintf(f, "[");
for (i = 0; i < arrayGetLength(); ++i) {
if (i > 0)
fprintf(f, " ");
const Object &obj = arrayGetNF(i);
obj.print(f);
}
fprintf(f, "]");
break;
case objDict:
fprintf(f, "<<");
for (i = 0; i < dictGetLength(); ++i) {
fprintf(f, " /%s ", dictGetKey(i));
const Object &obj = dictGetValNF(i);
obj.print(f);
}
fprintf(f, " >>");
break;
case objStream:
fprintf(f, "<stream>");
break;
case objRef:
fprintf(f, "%d %d R", ref.num, ref.gen);
break;
case objCmd:
fprintf(f, "%s", cString);
break;
case objError:
fprintf(f, "<error>");
break;
case objEOF:
fprintf(f, "<EOF>");
break;
case objNone:
fprintf(f, "<none>");
break;
case objDead:
fprintf(f, "<dead>");
break;
case objInt64:
fprintf(f, "%lld", int64g);
break;
}
}