const char* d2f_getTypeDescriptor(u4 typeId) {
//const char* res = kernelData.g_typeSigs[typeID];
if (typeId == (u4)-1) {
return NULL;
}
const char* sig = (const char*)typeId;
return sig;
#if 0
int dim = (typeId >> FASTIVA_CLASS_ID_BITS) & 7;
int class_id = (typeId & ~(-1 << FASTIVA_CLASS_ID_BITS));
const int FASTIVA_CLASS_ID_BIT_MASK = 0xFFFF0FFF;
const char* name;
if (typeId >= ((u4)-1 << FASTIVA_PACKAGE_ID_SHIFT)) {
PrimitiveType type;
switch (typeId & FASTIVA_CLASS_ID_BIT_MASK) {
case JPP_CLASS_ID::void$:
type = PRIM_VOID;
break;
case JPP_CLASS_ID::jbool$:
type = PRIM_BOOLEAN;
break;
case JPP_CLASS_ID::jbyte$:
type = PRIM_BYTE;
break;
case JPP_CLASS_ID::jshort$:
type = PRIM_SHORT;
break;
case JPP_CLASS_ID::unicod$:
type = PRIM_CHAR;
break;
case JPP_CLASS_ID::jint$:
type = PRIM_INT;
break;
case JPP_CLASS_ID::jlonglong$:
type = PRIM_LONG;
break;
case JPP_CLASS_ID::jfloat$:
type = PRIM_FLOAT;
break;
case JPP_CLASS_ID::jdouble$:
type = PRIM_DOUBLE;
break;
default:
assert(false == "Should not be here");
type = PRIM_NOT;
}
name = dexGetPrimitiveTypeDescriptor(type);
//return kernel.getPrimitiveSig((class_id >> 4), dim);
}
/*
* Convert primitive, boxed data from "srcPtr" to "dstPtr".
*
* Section v2 2.6 lists the various conversions and promotions. We
* allow the "widening" and "identity" conversions, but don't allow the
* "narrowing" conversions.
*
* Allowed:
* byte to short, int, long, float, double
* short to int, long, float double
* char to int, long, float, double
* int to long, float, double
* long to float, double
* float to double
* Values of types byte, char, and short are "internally" widened to int.
*
* Returns the width in 32-bit words of the destination primitive, or
* -1 if the conversion is not allowed.
*
* TODO? use JValue rather than u4 pointers
*/
int dvmConvertPrimitiveValue(PrimitiveType srcType,
PrimitiveType dstType, const s4* srcPtr, s4* dstPtr)
{
enum Conversion {
OK4, OK8, ItoJ, ItoD, JtoD, FtoD, ItoF, JtoF, bad
};
enum Conversion conv;
#ifdef ARCH_HAVE_ALIGNED_DOUBLES
double ret;
#endif
assert((srcType != PRIM_VOID) && (srcType != PRIM_NOT));
assert((dstType != PRIM_VOID) && (dstType != PRIM_NOT));
switch (dstType) {
case PRIM_BOOLEAN:
case PRIM_CHAR:
case PRIM_BYTE: {
conv = (srcType == dstType) ? OK4 : bad;
break;
}
case PRIM_SHORT: {
switch (srcType) {
case PRIM_BYTE:
case PRIM_SHORT: conv = OK4; break;
default: conv = bad; break;
}
break;
}
case PRIM_INT: {
switch (srcType) {
case PRIM_BYTE:
case PRIM_CHAR:
case PRIM_SHORT:
case PRIM_INT: conv = OK4; break;
default: conv = bad; break;
}
break;
}
case PRIM_LONG: {
switch (srcType) {
case PRIM_BYTE:
case PRIM_CHAR:
case PRIM_SHORT:
case PRIM_INT: conv = ItoJ; break;
case PRIM_LONG: conv = OK8; break;
default: conv = bad; break;
}
break;
}
case PRIM_FLOAT: {
switch (srcType) {
case PRIM_BYTE:
case PRIM_CHAR:
case PRIM_SHORT:
case PRIM_INT: conv = ItoF; break;
case PRIM_LONG: conv = JtoF; break;
case PRIM_FLOAT: conv = OK4; break;
default: conv = bad; break;
}
break;
}
case PRIM_DOUBLE: {
switch (srcType) {
case PRIM_BYTE:
case PRIM_CHAR:
case PRIM_SHORT:
case PRIM_INT: conv = ItoD; break;
case PRIM_LONG: conv = JtoD; break;
case PRIM_FLOAT: conv = FtoD; break;
case PRIM_DOUBLE: conv = OK8; break;
default: conv = bad; break;
}
break;
}
case PRIM_VOID:
case PRIM_NOT:
default: {
conv = bad;
break;
}
}
switch (conv) {
case OK4: *dstPtr = *srcPtr; return 1;
case OK8: *(s8*) dstPtr = *(s8*)srcPtr; return 2;
case ItoJ: *(s8*) dstPtr = (s8) (*(s4*) srcPtr); return 2;
#ifndef ARCH_HAVE_ALIGNED_DOUBLES
case ItoD: *(double*) dstPtr = (double) (*(s4*) srcPtr); return 2;
case JtoD: *(double*) dstPtr = (double) (*(long long*) srcPtr); return 2;
case FtoD: *(double*) dstPtr = (double) (*(float*) srcPtr); return 2;
#else
case ItoD: ret = (double) (*(s4*) srcPtr); memcpy(dstPtr, &ret, 8); return 2;
case JtoD: ret = (double) (*(long long*) srcPtr); memcpy(dstPtr, &ret, 8); return 2;
case FtoD: ret = (double) (*(float*) srcPtr); memcpy(dstPtr, &ret, 8); return 2;
#endif
case ItoF: *(float*) dstPtr = (float) (*(int*) srcPtr); return 1;
case JtoF: *(float*) dstPtr = (float) (*(long long*) srcPtr); return 1;
case bad: {
ALOGV("illegal primitive conversion: '%s' to '%s'",
dexGetPrimitiveTypeDescriptor(srcType),
dexGetPrimitiveTypeDescriptor(dstType));
return -1;
}
default: {
dvmAbort();
return -1; // Keep the compiler happy.
}
}
}
/* (documented in header) */
char dexGetPrimitiveTypeDescriptorChar(PrimitiveType type) {
const char* string = dexGetPrimitiveTypeDescriptor(type);
return (string == NULL) ? '\0' : string[0];
}
