Examples with UnknownIdentifierException com.oracle.truffle.api.interop.UnknownIdentifierException used on opensource projects

Example 11 with UnknownIdentifierException

use of com.oracle.truffle.api.interop.UnknownIdentifierException in project sulong by graalvm.

the class LLVMTruffleReadNBytes method interop.

@Specialization
protected Object interop(LLVMTruffleObject objectWithOffset, int n, @Cached("createForeignReadNode()") Node foreignRead, @Cached("createToByteNode()") ForeignToLLVM toLLVM, @Cached("getContextReference()") ContextReference<LLVMContext> ctxRef) {
    long offset = objectWithOffset.getOffset();
    TruffleObject object = objectWithOffset.getObject();
    byte[] chars = new byte[n];
    for (int i = 0; i < n; i++) {
        Object rawValue;
        try {
            rawValue = ForeignAccess.sendRead(foreignRead, object, offset + i);
        } catch (UnknownIdentifierException | UnsupportedMessageException e) {
            CompilerDirectives.transferToInterpreter();
            throw new IllegalStateException(e);
        }
        chars[i] = (byte) toLLVM.executeWithTarget(rawValue);
    }
    TruffleObject ret = (TruffleObject) ctxRef.get().getEnv().asGuestValue(chars);
    return new LLVMTruffleObject(LLVMTypedForeignObject.createUnknown(ret));
}