private static JavaType asJavaType(
Class<?> type, MetaAccessProvider metaAccess, CodeCacheProvider codeCache) {
if (WordBase.class.isAssignableFrom(type)) {
return metaAccess.lookupJavaType(codeCache.getTarget().wordJavaKind.toJavaClass());
} else {
return metaAccess.lookupJavaType(type);
}
}
public Signature getSignature() {
ForeignCallDescriptor d = linkage.getDescriptor();
MetaAccessProvider metaAccess = providers.getMetaAccess();
Class<?>[] arguments = d.getArgumentTypes();
ResolvedJavaType[] parameters = new ResolvedJavaType[arguments.length];
for (int i = 0; i < arguments.length; i++) {
parameters[i] = metaAccess.lookupJavaType(arguments[i]);
}
return new HotSpotSignature(
jvmciRuntime, metaAccess.lookupJavaType(d.getResultType()), parameters);
}
public StackTraceElement getApplySourceLocation(MetaAccessProvider metaAccess) {
Class<?> c = getClass();
for (Method m : c.getDeclaredMethods()) {
if (m.getName().equals("execute")) {
return metaAccess.lookupJavaMethod(m).asStackTraceElement(0);
}
}
throw new JVMCIError("could not find method named \"execute\" in " + c.getName());
}
/**
* Gets a {@link Classfile} created by parsing the class file bytes for {@code c}.
*
* @throws NoClassDefFoundError if the class file cannot be found
*/
private synchronized Classfile getClassfile(Class<?> c) {
assert !c.isPrimitive() && !c.isArray() : c;
Classfile classfile = classfiles.get(c);
if (classfile == null) {
try {
ResolvedJavaType type = metaAccess.lookupJavaType(c);
InputStream in = getClassfileAsStream(c);
if (in != null) {
DataInputStream stream = new DataInputStream(in);
classfile = new Classfile(type, stream, this);
classfiles.put(c, classfile);
return classfile;
}
throw new NoClassDefFoundError(c.getName());
} catch (IOException e) {
throw (NoClassDefFoundError) new NoClassDefFoundError(c.getName()).initCause(e);
}
}
return classfile;
}
/** Gets the substitute method, resolving it first if necessary. */
public ResolvedJavaMethod getSubstitute(MetaAccessProvider metaAccess) {
if (cachedSubstitute == null) {
cachedSubstitute = metaAccess.lookupJavaMethod(getJavaSubstitute());
}
return cachedSubstitute;
}