git.delta.rocks / jrsonnet / refs/commits / afe1286f67ce

1use std::{2	any::type_name,3	fs,4	io::{self, Write},5	path::PathBuf,6	process,7	rc::Rc,8};910use children::{children_between, trivia_before};11use clap::Parser;12use dprint_core::formatting::{13	condition_helpers::is_multiple_lines, condition_resolvers::true_resolver,14	ConditionResolverContext, LineNumber, PrintItems, PrintOptions,15};16use jrsonnet_rowan_parser::{17	nodes::{18		Arg, ArgsDesc, Assertion, BinaryOperator, Bind, CompSpec, Destruct, DestructArrayPart,19		DestructRest, Expr, ExprBase, FieldName, ForSpec, IfSpec, ImportKind, Literal, Member,20		Name, Number, ObjBody, ObjLocal, ParamsDesc, SliceDesc, SourceFile, Stmt, Suffix, Text,21		UnaryOperator, Visibility,22	},23	AstNode, AstToken as _, SyntaxToken,24};2526use crate::{27	children::trivia_after,28	comments::{format_comments, CommentLocation},29};3031mod children;32mod comments;33#[cfg(test)]34mod tests;3536pub trait Printable {37	fn print(&self, out: &mut PrintItems);38}3940macro_rules! pi {41	(@i; $($t:tt)*) => {{42		#[allow(unused_mut)]43		let mut o = dprint_core::formatting::PrintItems::new();44		pi!(@s; o: $($t)*);45		o46	}};47	(@s; $o:ident: str($e:expr $(,)?) $($t:tt)*) => {{48		$o.push_str($e);49		pi!(@s; $o: $($t)*);50	}};51	(@s; $o:ident: string($e:expr $(,)?) $($t:tt)*) => {{52		$o.push_string($e);53		pi!(@s; $o: $($t)*);54	}};55	(@s; $o:ident: nl $($t:tt)*) => {{56		$o.push_signal(dprint_core::formatting::Signal::NewLine);57		pi!(@s; $o: $($t)*);58	}};59	(@s; $o:ident: tab $($t:tt)*) => {{60		$o.push_signal(dprint_core::formatting::Signal::Tab);61		pi!(@s; $o: $($t)*);62	}};63	(@s; $o:ident: >i $($t:tt)*) => {{64		$o.push_signal(dprint_core::formatting::Signal::StartIndent);65		pi!(@s; $o: $($t)*);66	}};67	(@s; $o:ident: <i $($t:tt)*) => {{68		$o.push_signal(dprint_core::formatting::Signal::FinishIndent);69		pi!(@s; $o: $($t)*);70	}};71	(@s; $o:ident: info($v:expr) $($t:tt)*) => {{72		$o.push_info($v);73		pi!(@s; $o: $($t)*);74	}};75	(@s; $o:ident: if($s:literal, $cond:expr, $($i:tt)*) $($t:tt)*) => {{76		$o.push_condition(dprint_core::formatting::conditions::if_true(77			$s,78			$cond.clone(),79			{80				let mut o = PrintItems::new();81				p!(o, $($i)*);82				o83			},84		));85		pi!(@s; $o: $($t)*);86	}};87	(@s; $o:ident: if_else($s:literal, $cond:expr, $($i:tt)*)($($e:tt)+) $($t:tt)*) => {{88		$o.push_condition(dprint_core::formatting::conditions::if_true_or(89			$s,90			$cond.clone(),91			{92				let mut o = PrintItems::new();93				p!(o, $($i)*);94				o95			},96			{97				let mut o = PrintItems::new();98				p!(o, $($e)*);99				o100			},101		));102		pi!(@s; $o: $($t)*);103	}};104	(@s; $o:ident: if_not($s:literal, $cond:expr, $($e:tt)*) $($t:tt)*) => {{105		$o.push_condition(dprint_core::formatting::conditions::if_true_or(106			$s,107			$cond.clone(),108			{109				let o = PrintItems::new();110				o111			},112			{113				let mut o = PrintItems::new();114				p!(o, $($e)*);115				o116			},117		));118		pi!(@s; $o: $($t)*);119	}};120	(@s; $o:ident: {$expr:expr} $($t:tt)*) => {{121		$expr.print($o);122		pi!(@s; $o: $($t)*);123	}};124	(@s; $o:ident: items($expr:expr) $($t:tt)*) => {{125		$o.extend($expr);126		pi!(@s; $o: $($t)*);127	}};128	(@s; $o:ident: if ($e:expr)($($then:tt)*) $($t:tt)*) => {{129		if $e {130			pi!(@s; $o: $($then)*);131		}132		pi!(@s; $o: $($t)*);133	}};134	(@s; $o:ident: ifelse ($e:expr)($($then:tt)*)($($else:tt)*) $($t:tt)*) => {{135		if $e {136			pi!(@s; $o: $($then)*);137		} else {138			pi!(@s; $o: $($else)*);139		}140		pi!(@s; $o: $($t)*);141	}};142	(@s; $i:ident:) => {}143}144macro_rules! p {145	($o:ident, $($t:tt)*) => {146		pi!(@s; $o: $($t)*)147	};148}149pub(crate) use p;150pub(crate) use pi;151152impl<P> Printable for Option<P>153where154	P: Printable,155{156	fn print(&self, out: &mut PrintItems) {157		if let Some(v) = self {158			v.print(out)159		} else {160			p!(161				out,162				string(format!(163					"/*missing {}*/",164					type_name::<P>().replace("jrsonnet_rowan_parser::generated::nodes::", "")165				),)166			)167		}168	}169}170171impl Printable for SyntaxToken {172	fn print(&self, out: &mut PrintItems) {173		p!(out, string(self.to_string()))174	}175}176177impl Printable for Text {178	fn print(&self, out: &mut PrintItems) {179		p!(out, string(format!("{}", self)))180	}181}182impl Printable for Number {183	fn print(&self, out: &mut PrintItems) {184		p!(out, string(format!("{}", self)))185	}186}187188impl Printable for Name {189	fn print(&self, out: &mut PrintItems) {190		p!(out, { self.ident_lit() })191	}192}193194impl Printable for DestructRest {195	fn print(&self, out: &mut PrintItems) {196		p!(out, str("..."));197		if let Some(name) = self.into() {198			p!(out, { name });199		}200	}201}202203impl Printable for Destruct {204	fn print(&self, out: &mut PrintItems) {205		match self {206			Destruct::DestructFull(f) => {207				p!(out, { f.name() })208			}209			Destruct::DestructSkip(_) => p!(out, str("?")),210			Destruct::DestructArray(a) => {211				p!(out, str("[") >i nl);212				for el in a.destruct_array_parts() {213					match el {214						DestructArrayPart::DestructArrayElement(e) => {215							p!(out, {e.destruct()} str(",") nl)216						}217						DestructArrayPart::DestructRest(d) => {218							p!(out, {d} str(",") nl)219						}220					}221				}222				p!(out, <i str("]"));223			}224			Destruct::DestructObject(o) => {225				p!(out, str("{") >i nl);226				for item in o.destruct_object_fields() {227					p!(out, { item.field() });228					if let Some(des) = item.destruct() {229						p!(out, str(": ") {des})230					}231					if let Some(def) = item.expr() {232						p!(out, str(" = ") {def});233					}234					p!(out, str(",") nl);235				}236				if let Some(rest) = o.destruct_rest() {237					p!(out, {rest} nl)238				}239				p!(out, <i str("}"));240			}241		}242	}243}244245impl Printable for FieldName {246	fn print(&self, out: &mut PrintItems) {247		match self {248			FieldName::FieldNameFixed(f) => {249				if let Some(id) = f.id() {250					p!(out, { id })251				} else if let Some(str) = f.text() {252					p!(out, { str })253				} else {254					p!(out, str("/*missing FieldName*/"))255				}256			}257			FieldName::FieldNameDynamic(d) => {258				p!(out, str("[") {d.expr()} str("]"))259			}260		}261	}262}263264impl Printable for Visibility {265	fn print(&self, out: &mut PrintItems) {266		p!(out, string(self.to_string()))267	}268}269270impl Printable for ObjLocal {271	fn print(&self, out: &mut PrintItems) {272		p!(out, str("local ") {self.bind()})273	}274}275276impl Printable for Assertion {277	fn print(&self, out: &mut PrintItems) {278		p!(out, str("assert ") {self.condition()});279		if self.colon_token().is_some() || self.message().is_some() {280			p!(out, str(": ") {self.message()})281		}282	}283}284285impl Printable for ParamsDesc {286	fn print(&self, out: &mut PrintItems) {287		p!(out, str("(") >i nl);288		for param in self.params() {289			p!(out, { param.destruct() });290			if param.assign_token().is_some() || param.expr().is_some() {291				p!(out, str(" = ") {param.expr()})292			}293			p!(out, str(",") nl)294		}295		p!(out, <i str(")"));296	}297}298impl Printable for ArgsDesc {299	fn print(&self, out: &mut PrintItems) {300		let start = LineNumber::new("start");301		let end = LineNumber::new("end");302		let multi_line = Rc::new(move |condition_context: &mut ConditionResolverContext| {303			is_multiple_lines(condition_context, start, end).map(|v| !v)304		});305		p!(out, str("(") info(start) if("start args", multi_line, >i nl));306		let (children, end_comments) = children_between::<Arg>(307			self.syntax().clone(),308			self.l_paren_token().map(Into::into).as_ref(),309			self.r_paren_token().map(Into::into).as_ref(),310			None,311		);312		let mut args = children.into_iter().peekable();313		while let Some(ele) = args.next() {314			if ele.should_start_with_newline {315				p!(out, nl);316			}317			format_comments(&ele.before_trivia, CommentLocation::AboveItem, out);318			let arg = ele.value;319			if arg.name().is_some() || arg.assign_token().is_some() {320				p!(out, {arg.name()} str(" = "));321			}322			let comma_between = if args.peek().is_some() {323				true_resolver()324			} else {325				multi_line.clone()326			};327			p!(out, {arg.expr()} if("arg comma", comma_between, str(",") if_not("between args", multi_line, str(" "))));328			format_comments(&ele.inline_trivia, CommentLocation::ItemInline, out);329			p!(out, if("between args", multi_line, nl));330		}331		if end_comments.should_start_with_newline {332			p!(out, nl);333		}334		format_comments(&end_comments.trivia, CommentLocation::EndOfItems, out);335		p!(out, if("end args", multi_line, <i info(end)) str(")"));336	}337}338impl Printable for SliceDesc {339	fn print(&self, out: &mut PrintItems) {340		p!(out, str("["));341		if self.from().is_some() {342			p!(out, { self.from() });343		}344		p!(out, str(":"));345		if self.end().is_some() {346			p!(out, { self.end().map(|e| e.expr()) })347		}348		// Keep only one : in case if we don't need step349		if self.step().is_some() {350			p!(out, str(":") {self.step().map(|e|e.expr())});351		}352		p!(out, str("]"));353	}354}355356impl Printable for Member {357	fn print(&self, out: &mut PrintItems) {358		match self {359			Self::MemberBindStmt(b) => {360				p!(out, { b.obj_local() })361			}362			Self::MemberAssertStmt(ass) => {363				p!(out, { ass.assertion() })364			}365			Self::MemberFieldNormal(n) => {366				p!(out, {n.field_name()} if(n.plus_token().is_some())({n.plus_token()}) {n.visibility()} str(" ") {n.expr()})367			}368			Self::MemberFieldMethod(m) => {369				p!(out, {m.field_name()} {m.params_desc()} {m.visibility()} str(" ") {m.expr()})370			}371		}372	}373}374375impl Printable for ObjBody {376	fn print(&self, out: &mut PrintItems) {377		match self {378			ObjBody::ObjBodyComp(l) => {379				let (children, mut end_comments) = children_between::<Member>(380					l.syntax().clone(),381					l.l_brace_token().map(Into::into).as_ref(),382					Some(383						&(l.comp_specs()384							.next()385							.expect("at least one spec is defined")386							.syntax()387							.clone())388						.into(),389					),390					None,391				);392				let trailing_for_comp = end_comments.extract_trailing();393				p!(out, str("{") >i nl);394				for mem in children.into_iter() {395					if mem.should_start_with_newline {396						p!(out, nl);397					}398					format_comments(&mem.before_trivia, CommentLocation::AboveItem, out);399					p!(out, {mem.value} str(","));400					format_comments(&mem.inline_trivia, CommentLocation::ItemInline, out);401					p!(out, nl)402				}403404				if end_comments.should_start_with_newline {405					p!(out, nl);406				}407				format_comments(&end_comments.trivia, CommentLocation::EndOfItems, out);408409				let (compspecs, end_comments) = children_between::<CompSpec>(410					l.syntax().clone(),411					l.member_comps()412						.last()413						.map(|m| m.syntax().clone())414						.map(Into::into)415						.or_else(|| l.l_brace_token().map(Into::into))416						.as_ref(),417					l.r_brace_token().map(Into::into).as_ref(),418					Some(trailing_for_comp),419				);420				for mem in compspecs.into_iter() {421					if mem.should_start_with_newline {422						p!(out, nl);423					}424					format_comments(&mem.before_trivia, CommentLocation::AboveItem, out);425					p!(out, { mem.value });426					format_comments(&mem.inline_trivia, CommentLocation::ItemInline, out);427				}428				if end_comments.should_start_with_newline {429					p!(out, nl);430				}431				format_comments(&end_comments.trivia, CommentLocation::EndOfItems, out);432433				p!(out, nl <i str("}"));434			}435			ObjBody::ObjBodyMemberList(l) => {436				let (children, end_comments) = children_between::<Member>(437					l.syntax().clone(),438					l.l_brace_token().map(Into::into).as_ref(),439					l.r_brace_token().map(Into::into).as_ref(),440					None,441				);442				if children.is_empty() && end_comments.is_empty() {443					p!(out, str("{ }"));444					return;445				}446				p!(out, str("{") >i nl);447				for (i, mem) in children.into_iter().enumerate() {448					if mem.should_start_with_newline && i != 0 {449						p!(out, nl);450					}451					format_comments(&mem.before_trivia, CommentLocation::AboveItem, out);452					p!(out, {mem.value} str(","));453					format_comments(&mem.inline_trivia, CommentLocation::ItemInline, out);454					p!(out, nl)455				}456457				if end_comments.should_start_with_newline {458					p!(out, nl);459				}460				format_comments(&end_comments.trivia, CommentLocation::EndOfItems, out);461				p!(out, <i str("}"));462			}463		}464	}465}466impl Printable for UnaryOperator {467	fn print(&self, out: &mut PrintItems) {468		p!(out, string(self.text().to_string()))469	}470}471impl Printable for BinaryOperator {472	fn print(&self, out: &mut PrintItems) {473		p!(out, string(self.text().to_string()))474	}475}476impl Printable for Bind {477	fn print(&self, out: &mut PrintItems) {478		match self {479			Bind::BindDestruct(d) => {480				p!(out, {d.into()} str(" = ") {d.value()})481			}482			Bind::BindFunction(f) => {483				p!(out, {f.name()} {f.params()} str(" = ") {f.value()})484			}485		}486	}487}488impl Printable for Literal {489	fn print(&self, out: &mut PrintItems) {490		p!(out, string(self.syntax().to_string()))491	}492}493impl Printable for ImportKind {494	fn print(&self, out: &mut PrintItems) {495		p!(out, string(self.syntax().to_string()))496	}497}498impl Printable for ForSpec {499	fn print(&self, out: &mut PrintItems) {500		p!(out, str("for ") {self.bind()} str(" in ") {self.expr()})501	}502}503impl Printable for IfSpec {504	fn print(&self, out: &mut PrintItems) {505		p!(out, str("if ") {self.expr()})506	}507}508impl Printable for CompSpec {509	fn print(&self, out: &mut PrintItems) {510		match self {511			CompSpec::ForSpec(f) => f.print(out),512			CompSpec::IfSpec(i) => i.print(out),513		}514	}515}516impl Printable for Expr {517	fn print(&self, out: &mut PrintItems) {518		let (stmts, _ending) = children_between::<Stmt>(519			self.syntax().clone(),520			None,521			self.expr_base()522				.as_ref()523				.map(ExprBase::syntax)524				.cloned()525				.map(Into::into)526				.as_ref(),527			None,528		);529		for stmt in stmts {530			p!(out, { stmt.value });531		}532		p!(out, { self.expr_base() });533		let (suffixes, _ending) = children_between::<Suffix>(534			self.syntax().clone(),535			self.expr_base()536				.as_ref()537				.map(ExprBase::syntax)538				.cloned()539				.map(Into::into)540				.as_ref(),541			None,542			None,543		);544		for suffix in suffixes {545			p!(out, { suffix.value });546		}547	}548}549impl Printable for Suffix {550	fn print(&self, out: &mut PrintItems) {551		match self {552			Suffix::SuffixIndex(i) => {553				if i.question_mark_token().is_some() {554					p!(out, str("?"));555				}556				p!(out, str(".") {i.index()});557			}558			Suffix::SuffixIndexExpr(e) => {559				if e.question_mark_token().is_some() {560					p!(out, str(".?"));561				}562				p!(out, str("[") {e.index()} str("]"))563			}564			Suffix::SuffixSlice(d) => {565				p!(out, { d.slice_desc() })566			}567			Suffix::SuffixApply(a) => {568				p!(out, { a.args_desc() })569			}570		}571	}572}573impl Printable for Stmt {574	fn print(&self, out: &mut PrintItems) {575		match self {576			Stmt::StmtLocal(l) => {577				let (binds, end_comments) = children_between::<Bind>(578					l.syntax().clone(),579					l.local_kw_token().map(Into::into).as_ref(),580					l.semi_token().map(Into::into).as_ref(),581					None,582				);583				if binds.len() == 1 {584					let bind = &binds[0];585					format_comments(&bind.before_trivia, CommentLocation::AboveItem, out);586					p!(out, str("local ") {bind.value});587				// TODO: keep end_comments, child.inline_trivia somehow, force multiple locals formatting in case of presence?588				} else {589					p!(out,str("local") >i nl);590					for bind in binds {591						if bind.should_start_with_newline {592							p!(out, nl);593						}594						format_comments(&bind.before_trivia, CommentLocation::AboveItem, out);595						p!(out, {bind.value} str(","));596						format_comments(&bind.inline_trivia, CommentLocation::ItemInline, out);597						p!(out, nl)598					}599					if end_comments.should_start_with_newline {600						p!(out, nl)601					}602					format_comments(&end_comments.trivia, CommentLocation::EndOfItems, out);603					p!(out,<i);604				}605				p!(out,str(";") nl);606			}607			Stmt::StmtAssert(a) => {608				p!(out, {a.assertion()} str(";") nl)609			}610		}611	}612}613impl Printable for ExprBase {614	fn print(&self, out: &mut PrintItems) {615		match self {616			Self::ExprBinary(b) => {617				p!(out, {b.lhs_work()} str(" ") {b.binary_operator()} str(" ") {b.rhs_work()})618			}619			Self::ExprUnary(u) => p!(out, {u.unary_operator()} {u.rhs()}),620			// Self::ExprSlice(s) => {621			// 	p!(new: {s.expr()} {s.slice_desc()})622			// }623			// Self::ExprIndex(i) => {624			// 	p!(new: {i.expr()} str(".") {i.index()})625			// }626			// Self::ExprIndexExpr(i) => p!(new: {i.base()} str("[") {i.index()} str("]")),627			// Self::ExprApply(a) => {628			// 	let mut pi = p!(new: {a.expr()} {a.args_desc()});629			// 	if a.tailstrict_kw_token().is_some() {630			// 		p!(out,str(" tailstrict"));631			// 	}632			// 	pi633			// }634			Self::ExprObjExtend(ex) => {635				p!(out, {ex.lhs_work()} str(" ") {ex.rhs_work()})636			}637			Self::ExprParened(p) => {638				p!(out, str("(") {p.expr()} str(")"))639			}640			Self::ExprString(s) => p!(out, { s.text() }),641			Self::ExprNumber(n) => p!(out, { n.number() }),642			Self::ExprArray(a) => {643				p!(out, str("[") >i nl);644				for el in a.exprs() {645					p!(out, {el} str(",") nl);646				}647				p!(out, <i str("]"));648			}649			Self::ExprObject(obj) => {650				p!(out, { obj.obj_body() })651			}652			Self::ExprArrayComp(arr) => {653				p!(out, str("[") {arr.expr()});654				for spec in arr.comp_specs() {655					p!(out, str(" ") {spec});656				}657				p!(out, str("]"));658			}659			Self::ExprImport(v) => {660				p!(out, {v.import_kind()} str(" ") {v.text()})661			}662			Self::ExprVar(n) => p!(out, { n.name() }),663			// Self::ExprLocal(l) => {664			// }665			Self::ExprIfThenElse(ite) => {666				p!(out, str("if ") {ite.cond()} str(" then ") {ite.then().map(|t| t.expr())});667				if ite.else_kw_token().is_some() || ite.else_().is_some() {668					p!(out, str(" else ") {ite.else_().map(|t| t.expr())})669				}670			}671			Self::ExprFunction(f) => p!(out, str("function") {f.params_desc()} nl {f.expr()}),672			// Self::ExprAssert(a) => p!(new: {a.assertion()} str("; ") {a.expr()}),673			Self::ExprError(e) => p!(out, str("error ") {e.expr()}),674			Self::ExprLiteral(l) => {675				p!(out, { l.literal() })676			}677		}678	}679}680681impl Printable for SourceFile {682	fn print(&self, out: &mut PrintItems) {683		let before = trivia_before(684			self.syntax().clone(),685			self.expr()686				.map(|e| e.syntax().clone())687				.map(Into::into)688				.as_ref(),689		);690		let after = trivia_after(691			self.syntax().clone(),692			self.expr()693				.map(|e| e.syntax().clone())694				.map(Into::into)695				.as_ref(),696		);697		format_comments(&before, CommentLocation::AboveItem, out);698		p!(out, {self.expr()} nl);699		format_comments(&after, CommentLocation::EndOfItems, out)700	}701}702703struct FormatOptions {704	// 0 for hard tabs705	indent: u8,706}707fn format(input: &str, opts: &FormatOptions) -> Option<String> {708	let (parsed, errors) = jrsonnet_rowan_parser::parse(input);709	if !errors.is_empty() {710		let mut builder = hi_doc::SnippetBuilder::new(input);711		for error in errors {712			builder713				.error(hi_doc::Text::single(714					format!("{:?}", error.error).chars(),715					Default::default(),716				))717				.range(718					error.range.start().into()719						..=(usize::from(error.range.end()) - 1).max(error.range.start().into()),720				)721				.build();722		}723		let snippet = builder.build();724		let ansi = hi_doc::source_to_ansi(&snippet);725		eprintln!("{ansi}");726		// It is possible to recover from this failure, but the output may be broken, as formatter is free to skip727		// ERROR rowan nodes.728		// Recovery needs to be enabled for LSP, though.729		//730		// TODO: Verify how formatter interacts in cases of missing positional values, i.e `if cond then /*missing Expr*/ else residual`.731		return None;732	}733	Some(dprint_core::formatting::format(734		|| {735			let mut out = PrintItems::new();736			parsed.print(&mut out);737			out738		},739		PrintOptions {740			indent_width: if opts.indent == 0 {741				// Reasonable max length for both 2 and 4 space sized tabs.742				3743			} else {744				opts.indent745			},746			max_width: 100,747			use_tabs: opts.indent == 0,748			new_line_text: "\n",749		},750	))751}752753#[derive(Parser)]754struct Opts {755	/// Treat input as code, reformat it instead of reading file.756	#[clap(long, short = 'e')]757	exec: bool,758	/// Path to be reformatted if `--exec` if unset, otherwise code itself.759	input: String,760	/// Replace code with formatted in-place, instead of printing it to stdout.761	/// Only applicable if `--exec` is unset.762	#[clap(long, short = 'i')]763	in_place: bool,764765	/// Exit with error if formatted does not match input766	#[arg(long)]767	test: bool,768	/// Number of spaces to indent with769	///770	/// 0 for guess from input (default), and use hard tabs if unable to guess.771	#[arg(long, default_value = "0")]772	indent: u8,773	/// Force hard tab for indentation774	#[arg(long)]775	hard_tabs: bool,776777	/// Debug option: how many times to call reformatting in case of unstable dprint output resolution.778	///779	/// 0 for not retrying to reformat.780	#[arg(long, default_value = "0")]781	conv_limit: usize,782}783784#[derive(thiserror::Error, Debug)]785enum Error {786	#[error("--in-place is incompatible with --exec")]787	InPlaceExec,788	#[error("io: {0}")]789	Io(#[from] io::Error),790	#[error("persist: {0}")]791	Persist(#[from] tempfile::PersistError),792	#[error("parsing failed, refusing to reformat corrupted input")]793	Parse,794}795796fn main_result() -> Result<(), Error> {797	eprintln!("jrsonnet-fmt is a prototype of a jsonnet code formatter, do not expect it to produce meaningful results right now.");798	eprintln!("It is not expected for its output to match other implementations, it will be completly separate implementation with maybe different name.");799	let mut opts = Opts::parse();800	let input = if opts.exec {801		if opts.in_place {802			return Err(Error::InPlaceExec);803		}804		opts.input.clone()805	} else {806		fs::read_to_string(&opts.input)?807	};808809	if opts.indent == 0 {810		// Sane default.811		// TODO: Implement actual guessing.812		opts.hard_tabs = true;813	}814815	let mut iteration = 0;816	let mut formatted = input.clone();817	let mut tmp;818	// https://github.com/dprint/dprint/pull/423819	loop {820		let Some(reformatted) = format(821			&formatted,822			&FormatOptions {823				indent: if opts.indent == 0 || opts.hard_tabs {824					0825				} else {826					opts.indent827				},828			},829		) else {830			return Err(Error::Parse);831		};832		tmp = reformatted.trim().to_owned();833		if formatted == tmp {834			break;835		}836		formatted = tmp;837		if opts.conv_limit == 0 {838			break;839		}840		iteration += 1;841		if iteration > opts.conv_limit {842			panic!("formatting not converged");843		}844	}845	formatted.push('\n');846	if opts.test && formatted != input {847		process::exit(1);848	}849	if opts.in_place {850		let path = PathBuf::from(opts.input);851		let mut temp = tempfile::NamedTempFile::new_in(path.parent().expect(852			"not failed during read, this path is not a directory, and there is a parent",853		))?;854		temp.write_all(formatted.as_bytes())?;855		temp.flush()?;856		temp.persist(&path)?;857	} else {858		print!("{formatted}")859	}860	Ok(())861}862863fn main() {864	if let Err(e) = main_result() {865		eprintln!("{e}");866		process::exit(1);867	}868}