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#include <ctype.h>
#include <string.h>
#include <math.h>
#include <iomanip>
#include "objectmemory.hpp"
#include "marshal.hpp"
#include "object_utils.hpp"
#include <tommath.h>
#include <gdtoa.h>
#include "builtin/array.hpp"
#include "builtin/compiledcode.hpp"
#include "builtin/encoding.hpp"
#include "builtin/fixnum.hpp"
#include "builtin/float.hpp"
#include "builtin/iseq.hpp"
#include "builtin/string.hpp"
#include "builtin/symbol.hpp"
#include "builtin/tuple.hpp"
#include "detection.hpp"
#define STACK_BUF_SZ 1024
namespace rubinius {
Object* UnMarshaller::get_constant() {
char stack_data[STACK_BUF_SZ];
char *malloc_data = NULL;
char *data = stack_data;
size_t count;
stream >> count;
stream.get();
if(count >= STACK_BUF_SZ) {
malloc_data = (char*)malloc(count + 1);
data = malloc_data;
}
stream.read(data, count + 1);
data[count] = 0; // clamp
Object* cls = state->vm()->path2class(data);
if(malloc_data) {
free(malloc_data);
}
return cls;
}
Object* UnMarshaller::get_encoding() {
char stack_data[STACK_BUF_SZ];
char *malloc_data = NULL;
char *data = stack_data;
size_t count;
stream >> count;
stream.get();
if(count >= STACK_BUF_SZ) {
malloc_data = (char*)malloc(count + 1);
data = malloc_data;
}
stream.read(data, count + 1);
data[count] = 0; // clamp
if(count > 0) {
Encoding* enc = Encoding::find(state, data);
if(malloc_data) {
free(malloc_data);
}
return enc;
} else {
return cNil;
}
}
Object* UnMarshaller::get_int() {
std::string data;
stream >> data;
return Bignum::from_string(state, data.c_str(), 16);
}
String* UnMarshaller::get_string() {
size_t count;
Encoding* enc = try_as<Encoding>(unmarshal());
stream >> count;
// String::create adds room for a trailing null on its own
// using pinned here allows later stages to optimize these literal
// strings better.
String* str = String::create(state, NULL, count);
stream.get(); // read off newline
stream.read(reinterpret_cast<char*>(str->byte_address()), count);
stream.get(); // read off newline
if(enc) str->encoding(state, enc);
return str;
}
Symbol* UnMarshaller::get_symbol() {
char stack_data[STACK_BUF_SZ];
char *malloc_data = NULL;
char *data = stack_data;
size_t count;
stream >> count;
stream.get();
if(count >= STACK_BUF_SZ) {
malloc_data = (char*)malloc(count + 1);
data = malloc_data;
}
stream.read(data, count + 1);
data[count] = 0; // clamp
Symbol* sym = state->symbol(data);
if(malloc_data) {
free(malloc_data);
}
return sym;
}
Tuple* UnMarshaller::get_tuple() {
size_t count;
stream >> count;
Tuple* tup = Tuple::create(state, count);
for(size_t i = 0; i < count; i++) {
tup->put(state, i, unmarshal());
}
return tup;
}
#define FLOAT_EXP_OFFSET 58
Float* UnMarshaller::get_float() {
std::string line;
const char* data;
// discard the delimiter
stream.get();
std::getline(stream, line);
if(stream.fail()) {
Exception::type_error(state, "Unable to unmarshal Float: failed to read value");
}
data = line.c_str();
if(data[0] == ' ') {
double x;
long e;
x = ::ruby_strtod(data, NULL);
e = strtol(data+FLOAT_EXP_OFFSET, NULL, 10);
// This is necessary because exp2(1024) yields inf
if(e == 1024) {
double root_exp = ::exp2(512);
return Float::create(state, x * root_exp * root_exp);
} else {
return Float::create(state, x * ::exp2(e));
}
} else {
// avoid compiler warning
double zero = 0.0;
double val = 0.0;
if(!strncasecmp(data, "Infinity", 8U)) {
val = 1.0;
} else if(!strncasecmp(data, "-Infinity", 9U)) {
val = -1.0;
} else if(!strncasecmp(data, "NaN", 3U)) {
val = zero;
} else {
Exception::type_error(state, "Unable to unmarshal Float: invalid format");
}
return Float::create(state, val / zero);
}
}
#define OPCODE_LENGTH 32
InstructionSequence* UnMarshaller::get_iseq() {
size_t count;
long op;
char data[OPCODE_LENGTH];
stream >> count;
// Read off newline
stream.get();
InstructionSequence* iseq = InstructionSequence::create(state, count);
Tuple* ops = iseq->opcodes();
for(size_t i = 0; i < count; i++) {
stream.getline(data, OPCODE_LENGTH);
op = strtol(data, NULL, 10);
ops->put(state, i, Fixnum::from(op));
}
iseq->post_marshal(state);
return iseq;
}
CompiledCode* UnMarshaller::get_compiled_code() {
size_t ver;
stream >> ver;
CompiledCode* code = CompiledCode::create(state);
code->metadata(state, unmarshal());
code->primitive(state, (Symbol*)unmarshal());
code->name(state, (Symbol*)unmarshal());
code->iseq(state, (InstructionSequence*)unmarshal());
code->stack_size(state, (Fixnum*)unmarshal());
code->local_count(state, (Fixnum*)unmarshal());
code->required_args(state, (Fixnum*)unmarshal());
code->post_args(state, (Fixnum*)unmarshal());
code->total_args(state, (Fixnum*)unmarshal());
code->splat(state, unmarshal());
code->literals(state, (Tuple*)unmarshal());
code->lines(state, (Tuple*)unmarshal());
code->file(state, (Symbol*)unmarshal());
code->local_names(state, (Tuple*)unmarshal());
code->post_marshal(state);
return code;
}
Object* UnMarshaller::unmarshal() {
char code;
stream >> code;
switch(code) {
case 'n':
return cNil;
case 't':
return cTrue;
case 'f':
return cFalse;
case 'I':
return get_int();
case 's':
return get_string();
case 'x':
return get_symbol();
case 'p':
return get_tuple();
case 'd':
return get_float();
case 'i':
return get_iseq();
case 'M':
return get_compiled_code();
case 'c':
return get_constant();
case 'E':
return get_encoding();
default:
std::string str = "unknown marshal code: ";
str.append( 1, code );
Exception::type_error(state, str.c_str());
return cNil; // make compiler happy
}
}
}
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