Tom Anderson tomwhoiscontrary

comment on rust-lang/rfcs#2795 which i think is actually completely wrong, so cancelling

Do i understand correctly that this would be a special case in the language, understood by the compiler itself? That this isn't a change to the definition of the format_args! macro?

Would this be specific to format_args!, or could syntax like this be used by other, user-written, macros, which don't build on format_args!?

I understand that format_args! is currently special, implemented as a compiler built-in, rather than as a real macro. However, i've always seen this as an unfortunate wart, something that had to be done because we needed good print statements, and the macro system wasn't strong enough to implement them yet. It would be nice to remove that wart one day. Even while it's in place, it's useful to be able to gloss over it, and describe format_args! as just another macro, not doing anything any other macro couldn't do.

If i've understood correctly, then adding this featur

	import java.util.ArrayList;
	import java.util.LinkedHashMap;
	import java.util.List;
	import java.util.Map;
	import java.util.stream.Collectors;

	public class Combine {

	public static class Item {
	String name;

	PS C:\Users\IEUser\Downloads\jpackage-demo-master\jpackage-demo-master> .\gradlew.bat build

	> Task :jpackage

	jpackage argument list:
	[create-app-image, --name, demo, --input, C:\Users\IEUser\Downloads\jpackage-demo-master\jpackage-demo-master\build\libs, --output, C:\Users\IEUser\Downloads\jpackage-demo-master\jpackage-demo-master\build/app-image, --main-jar, jpackage-demo.jar]

	Creating app bundle: demo in C:\Users\IEUser\Downloads\jpackage-demo-master\jpackage-demo-master\build\app-image.
	Adding modules: [java.rmi, jdk.management.jfr, jdk.jdi, jdk.charsets, jdk.xml.dom, java.xml, java.datatransfer, jdk.jstatd, jdk.httpserver, java.desktop, java.security.sasl, jdk.zipfs, java.base, jdk.crypto.ec, jdk.javadoc, jdk.management.agent, jdk.jshell, jdk.editpad, jdk.sctp, jdk.jsobject, java.sql.rowset, java.smartcardio, jdk.unsupported, jdk.jlink, jdk.scripting.nashorn, java.security.jgss, java.compiler, jdk.dynalink, jdk.unsupported.desktop, jdk.accessibility, jdk.security.jgss, java.sql, java.xml.crypto, java.l

	import com.sun.net.httpserver.HttpServer;

	import java.io.BufferedWriter;
	import java.io.IOException;
	import java.io.OutputStreamWriter;
	import java.net.InetSocketAddress;
	import java.net.URI;
	import java.net.http.HttpClient;
	import java.net.http.HttpRequest;
	import java.net.http.HttpResponse;

	public static Matcher<Callable<?>> raises(Matcher<? super Throwable> sub) {
	return new FeatureMatcher<Callable<?>, Throwable>(sub, "thrown exception", "thrown exception") {
	@Override
	protected Throwable featureValueOf(Callable<?> thing) {
	try {
	thing.call();
	} catch (Throwable e) {
	return e;
	}
	return null;

	{
	"schemeName": "Normal",
	"version": "1.0",
	"codeStyle": {
	"all": {
	"formatter_off_tag": "@formatter:off",
	"formatter_on_tag": "@formatter:on",
	"formatter_tags_accept_regexp": false,
	"formatter_tags_enabled": false,
	"max_line_length": 120,

	import org.junit.Test;

	import java.util.concurrent.atomic.AtomicInteger;
	import java.util.stream.Collectors;
	import java.util.stream.Stream;

	public class StreamTraceTest {
	@Test
	public void test() {
	AtomicInteger mapCount = new AtomicInteger(0);

	import org.hamcrest.Matcher;
	import org.hamcrest.MatcherAssert;
	import org.junit.jupiter.api.extension.AfterTestExecutionCallback;
	import org.junit.jupiter.api.extension.ExtensionContext;
	import org.opentest4j.MultipleFailuresError;

	import java.lang.reflect.Field;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.List;

	#! /bin/bash -eu

	cd "$(dirname "$0")"

	$GCC_HOME/bin/g++ -std=c++17 -Wall -g -I $QL_PATH/include -L $QL_PATH ${GCC_OPTS:-} sonia_demo.cpp -lQuantLib -o sonia_demo

	LD_LIBRARY_PATH=$QL_PATH ./sonia_demo

	import java.time.LocalDate;
	import java.time.LocalDateTime;
	import java.time.LocalTime;
	import java.time.ZoneId;
	import java.time.ZonedDateTime;
	import java.util.List;
	import java.util.stream.Collectors;
	import java.util.stream.Stream;

	public class TimeTabulator {