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= Force result to zero when converting JS NaN to Java integral types. 

= Aggressively track and release JNI local references to constructed
  Java objects, because otherwise at least one JVM is reticent about
  GC'ing them.
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fur 1998-06-28 07:52:23 +00:00
Родитель 1a53251e00
Коммит 4f4552540c
1 изменённых файлов: 64 добавлений и 18 удалений
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80
js/ref/liveconnect/jsj_convert.c
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@ -32,6 +32,25 @@
#include "jsj_private.h" /* LiveConnect internals */
/* Floating-point double utilities, stolen from jsnum.h */
#ifdef IS_LITTLE_ENDIAN
#define JSDOUBLE_HI32(x) (((uint32 *)&(x))[1])
#define JSDOUBLE_LO32(x) (((uint32 *)&(x))[0])
#else
#define JSDOUBLE_HI32(x) (((uint32 *)&(x))[0])
#define JSDOUBLE_LO32(x) (((uint32 *)&(x))[1])
#endif
#define JSDOUBLE_HI32_SIGNBIT 0x80000000
#define JSDOUBLE_HI32_EXPMASK 0x7ff00000
#define JSDOUBLE_HI32_MANTMASK 0x000fffff
#define JSDOUBLE_IS_NaN(x) \
((JSDOUBLE_HI32(x) & JSDOUBLE_HI32_EXPMASK) == JSDOUBLE_HI32_EXPMASK && \
(JSDOUBLE_LO32(x) || (JSDOUBLE_HI32(x) & JSDOUBLE_HI32_MANTMASK)))
#define JSDOUBLE_IS_INFINITE(x) \
((JSDOUBLE_HI32(x) & ~JSDOUBLE_HI32_SIGNBIT) == JSDOUBLE_HI32_EXPMASK && \
!JSDOUBLE_LO32(x))
static JSBool
convert_js_obj_to_JSObject_wrapper(JSContext *cx, JNIEnv *jEnv, JSObject *js_obj,
@ -80,7 +99,7 @@ jsj_ConvertJSStringToJavaString(JSContext *cx, JNIEnv *jEnv, JSString *js_str)
*/
JSBool
jsj_ConvertJSValueToJavaObject(JSContext *cx, JNIEnv *jEnv, jsval v, JavaSignature *signature,
int *cost, jobject *java_value)
int *cost, jobject *java_value, JSBool *is_local_refp)
{
JSString *jsstr;
jclass target_java_class;
@ -88,6 +107,11 @@ jsj_ConvertJSValueToJavaObject(JSContext *cx, JNIEnv *jEnv, jsval v, JavaSignatu
PR_ASSERT(signature->type == JAVA_SIGNATURE_CLASS ||
signature->type == JAVA_SIGNATURE_ARRAY);
/* Initialize to default case, in which no new Java object is
synthesized to perform the conversion and, therefore, no JNI local
references are being held. */
*is_local_refp = JS_FALSE;
/* Get the Java type of the target value */
target_java_class = signature->java_class;
@ -169,7 +193,9 @@ jsj_ConvertJSValueToJavaObject(JSContext *cx, JNIEnv *jEnv, jsval v, JavaSignatu
if (!JS_ValueToNumber(cx, v, &d))
goto conversion_error;
*java_value = (*jEnv)->NewObject(jEnv, jlDouble, jlDouble_Double, d);
if (!*java_value) {
if (*java_value) {
*is_local_refp = JS_TRUE;
} else {
jsj_UnexpectedJavaError(cx, jEnv,
"Couldn't construct instance of java.lang.Double");
return JS_FALSE;
@ -191,7 +217,9 @@ jsj_ConvertJSValueToJavaObject(JSContext *cx, JNIEnv *jEnv, jsval v, JavaSignatu
goto conversion_error;
*java_value =
(*jEnv)->NewObject(jEnv, jlBoolean, jlBoolean_Boolean, b);
if (!*java_value) {
if (*java_value) {
*is_local_refp = JS_TRUE;
} else {
jsj_UnexpectedJavaError(cx, jEnv, "Couldn't construct instance "
"of java.lang.Boolean");
return JS_FALSE;
@ -214,8 +242,11 @@ jsj_ConvertJSValueToJavaObject(JSContext *cx, JNIEnv *jEnv, jsval v, JavaSignatu
if (jsstr) {
if (java_value) {
*java_value = jsj_ConvertJSStringToJavaString(cx, jEnv, jsstr);
if (!*java_value)
if (*java_value) {
*is_local_refp = JS_TRUE;
} else {
return JS_FALSE;
}
}
#ifdef LIVECONNECT_IMPROVEMENTS
if (!is_string)
@ -249,12 +280,16 @@ if (!JSVAL_IS_NUMBER(v)) { \
goto conversion_error; \
} else { \
jdouble dval = *JSVAL_TO_DOUBLE(v); \
member_name = (member_type) dval; \
if (JSDOUBLE_IS_NaN(dval)) \
member_name = 0; \
else \
member_name = (member_type) dval; \
\
/* Don't allow a non-integral number */ \
/* FIXME - should this be an error ? */ \
if ((jdouble)member_name != dval) \
(*cost)++; \
/* Don't allow a non-integral number to be converted \
to an integral type */ \
/* Actually, we have to allow this for LC1 compatibility */ \
/* if ((jdouble)member_name != dval) \
(*cost)++; */ \
} \
if (java_value) \
java_value->member_name = member_name; \
@ -305,12 +340,16 @@ if (!JSVAL_IS_NUMBER(jsvalue)) { \
\
} else { \
jdouble dval = *JSVAL_TO_DOUBLE(jsvalue); \
member_name = jdouble_to_jlong(dval); \
if (JSDOUBLE_IS_NaN(dval)) \
member_name = 0; \
else \
member_name = jdouble_to_jlong(dval); \
\
/* Don't allow a non-integral number */ \
/* Should this be an error ? */ \
if (jlong_to_jdouble(member_name) != dval) \
(*cost)++; \
/* Don't allow a non-integral number to be converted \
to an integral type */ \
/* Actually, we have to allow this for LC1 compatibility */ \
/*if (jlong_to_jdouble(member_name) != dval) \
(*cost)++;*/ \
} \
if (java_value) \
java_value->member_name = member_name; \
@ -337,10 +376,16 @@ if (!JSVAL_IS_NUMBER(jsvalue)) { \
JSBool
jsj_ConvertJSValueToJavaValue(JSContext *cx, JNIEnv *jEnv, jsval v,
JavaSignature *signature,
int *cost, jvalue *java_value)
int *cost, jvalue *java_value, JSBool *is_local_refp)
{
JavaSignatureChar type = signature->type;
JavaSignatureChar type;
/* Initialize to default case, in which no new Java object is
synthesized to perform the conversion and, therefore, no JNI local
references are being held. */
*is_local_refp = JS_FALSE;
type = signature->type;
switch (type) {
case JAVA_SIGNATURE_BOOLEAN:
if (!JSVAL_IS_BOOLEAN(v)) {
@ -410,7 +455,8 @@ jsj_ConvertJSValueToJavaValue(JSContext *cx, JNIEnv *jEnv, jsval v,
case JAVA_SIGNATURE_CLASS:
case JAVA_SIGNATURE_ARRAY:
if (!jsj_ConvertJSValueToJavaObject(cx, jEnv, v, signature, cost, &java_value->l))
if (!jsj_ConvertJSValueToJavaObject(cx, jEnv, v, signature, cost,
&java_value->l, is_local_refp))
goto conversion_error;
break;