git.delta.rocks / jrsonnet / refs/commits / 5585b94101d8

1#![allow(clippy::redundant_closure_call, clippy::derive_partial_eq_without_eq)]23use std::rc::Rc;45use peg::parser;6mod expr;7pub use expr::*;8pub use jrsonnet_interner::IStr;9pub use peg;10mod location;11mod source;12mod unescape;13pub use location::CodeLocation;14pub use source::{15	Source, SourceDefaultIgnoreJpath, SourceDirectory, SourceFifo, SourceFile, SourcePath,16	SourcePathT, SourceVirtual,17};1819pub struct ParserSettings {20	pub source: Source,21}2223macro_rules! expr_bin {24	($a:ident $op:ident $b:ident) => {25		Expr::BinaryOp($a, $op, $b)26	};27}28macro_rules! expr_un {29	($op:ident $a:ident) => {30		Expr::UnaryOp($op, $a)31	};32}3334parser! {35	grammar jsonnet_parser() for str {36		use peg::ParseLiteral;3738		rule eof() = quiet!{![_]} / expected!("<eof>")39		rule eol() = "\n" / eof()4041		/// Standard C-like comments42		rule comment()43			= "//" (!eol()[_])* eol()44			/ "/*" (!("*/")[_])* "*/"45			/ "#" (!eol()[_])* eol()4647		rule single_whitespace() = quiet!{([' ' | '\r' | '\n' | '\t'] / comment())} / expected!("<whitespace>")48		rule _() = quiet!{([' ' | '\r' | '\n' | '\t']+) / comment()}* / expected!("<whitespace>")4950		/// For comma-delimited elements51		rule comma() = quiet!{_ "," _} / expected!("<comma>")52		rule alpha() -> char = c:$(['_' | 'a'..='z' | 'A'..='Z']) {c.chars().next().unwrap()}53		rule digit() -> char = d:$(['0'..='9']) {d.chars().next().unwrap()}54		rule end_of_ident() = !['0'..='9' | '_' | 'a'..='z' | 'A'..='Z']55		/// Sequence of digits56		rule uint_str() -> &'input str = a:$(digit()+) { a }57		/// Number in scientific notation format58		rule number() -> f64 = quiet!{a:$(uint_str() ("." uint_str())? (['e'|'E'] (s:['+'|'-'])? uint_str())?) {? a.parse().map_err(|_| "<number>") }} / expected!("<number>")5960		/// Reserved word followed by any non-alphanumberic61		rule reserved() = ("assert" / "else" / "error" / "false" / "for" / "function" / "if" / "import" / "importstr" / "importbin" / "in" / "local" / "null" / "tailstrict" / "then" / "self" / "super" / "true") end_of_ident()62		rule id() -> IStr = v:$(quiet!{ !reserved() alpha() (alpha() / digit())*} / expected!("<identifier>")) { v.into() }6364		rule keyword(id: &'static str) -> ()65			= ##parse_string_literal(id) end_of_ident()6667		pub rule param(s: &ParserSettings) -> expr::Param = name:destruct(s) expr:(_ "=" _ expr:expr(s){expr})? { expr::Param(name, expr) }68		pub rule params(s: &ParserSettings) -> expr::ParamsDesc69			= params:param(s) ** comma() comma()? { expr::ParamsDesc(Rc::new(params)) }70			/ { expr::ParamsDesc(Rc::new(Vec::new())) }7172		pub rule arg(s: &ParserSettings) -> (Option<IStr>, LocExpr)73			= name:(quiet! { (s:id() _ "=" !['='] _ {s})? } / expected!("<argument name>")) expr:expr(s) {(name, expr)}7475		pub rule args(s: &ParserSettings) -> expr::ArgsDesc76			= args:arg(s)**comma() comma()? {?77				let unnamed_count = args.iter().take_while(|(n, _)| n.is_none()).count();78				let mut unnamed = Vec::with_capacity(unnamed_count);79				let mut named = Vec::with_capacity(args.len() - unnamed_count);80				let mut named_started = false;81				for (name, value) in args {82					if let Some(name) = name {83						named_started = true;84						named.push((name, value));85					} else {86						if named_started {87							return Err("<named argument>")88						}89						unnamed.push(value);90					}91				}92				Ok(expr::ArgsDesc::new(unnamed, named))93			}9495		pub rule destruct_rest() -> expr::DestructRest96			= "..." into:(_ into:id() {into})? {if let Some(into) = into {97				expr::DestructRest::Keep(into)98			} else {expr::DestructRest::Drop}}99		pub rule destruct_array(s: &ParserSettings) -> expr::Destruct100			= "[" _ start:destruct(s)**comma() rest:(101				comma() _ rest:destruct_rest()? end:(102					comma() end:destruct(s)**comma() (_ comma())? {end}103					/ comma()? {Vec::new()}104				) {(rest, end)}105				/ comma()? {(None, Vec::new())}106			) _ "]" {?107				#[cfg(feature = "exp-destruct")] return Ok(expr::Destruct::Array {108					start,109					rest: rest.0,110					end: rest.1,111				});112				#[cfg(not(feature = "exp-destruct"))] Err("!!!experimental destructuring was not enabled")113			}114		pub rule destruct_object(s: &ParserSettings) -> expr::Destruct115			= "{" _116				fields:(name:id() into:(_ ":" _ into:destruct(s) {into})? default:(_ "=" _ v:expr(s) {v})? {(name, into, default)})**comma()117				rest:(118					comma() rest:destruct_rest()? {rest}119					/ comma()? {None}120				)121			_ "}" {?122				#[cfg(feature = "exp-destruct")] return Ok(expr::Destruct::Object {123					fields,124					rest,125				});126				#[cfg(not(feature = "exp-destruct"))] Err("!!!experimental destructuring was not enabled")127			}128		pub rule destruct(s: &ParserSettings) -> expr::Destruct129			= v:id() {expr::Destruct::Full(v)}130			/ "?" {?131				#[cfg(feature = "exp-destruct")] return Ok(expr::Destruct::Skip);132				#[cfg(not(feature = "exp-destruct"))] Err("!!!experimental destructuring was not enabled")133			}134			/ arr:destruct_array(s) {arr}135			/ obj:destruct_object(s) {obj}136137		pub rule bind(s: &ParserSettings) -> expr::BindSpec138			= into:destruct(s) _ "=" _ expr:expr(s) {expr::BindSpec::Field{into, value: expr}}139			/ name:id() _ "(" _ params:params(s) _ ")" _ "=" _ expr:expr(s) {expr::BindSpec::Function{name, params, value: expr}}140141		pub rule assertion(s: &ParserSettings) -> expr::AssertStmt142			= keyword("assert") _ cond:expr(s) msg:(_ ":" _ e:expr(s) {e})? { expr::AssertStmt(cond, msg) }143144		pub rule whole_line() -> &'input str145			= str:$((!['\n'][_])* "\n") {str}146		pub rule string_block() -> String147			= "|||" chomped:"-"? (!['\n']single_whitespace())* "\n"148			empty_lines:$(['\n']*)149			prefix:[' ' | '\t']+ first_line:whole_line()150			lines:("\n" {"\n"} / [' ' | '\t']*<{prefix.len()}> s:whole_line() {s})*151			[' ' | '\t']*<, {prefix.len() - 1}> "|||"152			{153				let mut l = empty_lines.to_owned();154				l.push_str(first_line);155				l.extend(lines);156				if chomped.is_some() {157					debug_assert!(l.ends_with('\n'));158					l.truncate(l.len() - 1);159				}160				l161			}162163		rule hex_char()164			= quiet! { ['0'..='9' | 'a'..='f' | 'A'..='F'] } / expected!("<hex char>")165166		rule string_char(c: rule<()>)167			= (!['\\']!c()[_])+168			/ "\\\\"169			/ "\\u" hex_char() hex_char() hex_char() hex_char()170			/ "\\x" hex_char() hex_char()171			/ ['\\'] (quiet! { ['b' | 'f' | 'n' | 'r' | 't' | '"' | '\''] } / expected!("<escape character>"))172		pub rule string() -> String173			= ['"'] str:$(string_char(<"\"">)*) ['"'] {? unescape::unescape(str).ok_or("<escaped string>")}174			/ ['\''] str:$(string_char(<"\'">)*) ['\''] {? unescape::unescape(str).ok_or("<escaped string>")}175			/ quiet!{ "@'" str:$(("''" / (!['\''][_]))*) "'" {str.replace("''", "'")}176			/ "@\"" str:$(("\"\"" / (!['"'][_]))*) "\"" {str.replace("\"\"", "\"")}177			/ string_block() } / expected!("<string>")178179		pub rule field_name(s: &ParserSettings) -> expr::FieldName180			= name:id() {expr::FieldName::Fixed(name)}181			/ name:string() {expr::FieldName::Fixed(name.into())}182			/ "[" _ expr:expr(s) _ "]" {expr::FieldName::Dyn(expr)}183		pub rule visibility() -> expr::Visibility184			= ":::" {expr::Visibility::Unhide}185			/ "::" {expr::Visibility::Hidden}186			/ ":" {expr::Visibility::Normal}187		pub rule field(s: &ParserSettings) -> expr::FieldMember188			= name:field_name(s) _ plus:"+"? _ visibility:visibility() _ value:expr(s) {expr::FieldMember{189				name,190				plus: plus.is_some(),191				params: None,192				visibility,193				value,194			}}195			/ name:field_name(s) _ "(" _ params:params(s) _ ")" _ visibility:visibility() _ value:expr(s) {expr::FieldMember{196				name,197				plus: false,198				params: Some(params),199				visibility,200				value,201			}}202		pub rule obj_local(s: &ParserSettings) -> BindSpec203			= keyword("local") _ bind:bind(s) {bind}204		pub rule member(s: &ParserSettings) -> expr::Member205			= bind:obj_local(s) {expr::Member::BindStmt(bind)}206			/ assertion:assertion(s) {expr::Member::AssertStmt(assertion)}207			/ field:field(s) {expr::Member::Field(field)}208		pub rule objinside(s: &ParserSettings) -> expr::ObjBody209			= pre_locals:(b: obj_local(s) comma() {b})* &"[" field:field(s) post_locals:(comma() b:obj_local(s) {b})* _ ("," _)? forspec:forspec(s) others:(_ rest:compspec(s) {rest})? {210				let mut compspecs = vec![CompSpec::ForSpec(forspec)];211				compspecs.extend(others.unwrap_or_default());212				expr::ObjBody::ObjComp(expr::ObjComp{213					pre_locals,214					field,215					post_locals,216					compspecs,217				})218			}219			/ members:(member(s) ** comma()) comma()? {expr::ObjBody::MemberList(members)}220		pub rule ifspec(s: &ParserSettings) -> IfSpecData221			= keyword("if") _ expr:expr(s) {IfSpecData(expr)}222		pub rule forspec(s: &ParserSettings) -> ForSpecData223			= keyword("for") _ id:destruct(s) _ keyword("in") _ cond:expr(s) {ForSpecData(id, cond)}224		pub rule compspec(s: &ParserSettings) -> Vec<expr::CompSpec>225			= s:(i:ifspec(s) { expr::CompSpec::IfSpec(i) } / f:forspec(s) {expr::CompSpec::ForSpec(f)} ) ** _ {s}226		pub rule local_expr(s: &ParserSettings) -> Expr227			= keyword("local") _ binds:bind(s) ** comma() (_ ",")? _ ";" _ expr:expr(s) { Expr::LocalExpr(binds, expr) }228		pub rule string_expr(s: &ParserSettings) -> Expr229			= s:string() {Expr::Str(s.into())}230		pub rule obj_expr(s: &ParserSettings) -> Expr231			= "{" _ body:objinside(s) _ "}" {Expr::Obj(body)}232		pub rule array_expr(s: &ParserSettings) -> Expr233			= "[" _ elems:(expr(s) ** comma()) _ comma()? "]" {Expr::Arr(elems)}234		pub rule array_comp_expr(s: &ParserSettings) -> Expr235			= "[" _ expr:expr(s) _ comma()? _ forspec:forspec(s) _ others:(others: compspec(s) _ {others})? "]" {236				let mut specs = vec![CompSpec::ForSpec(forspec)];237				specs.extend(others.unwrap_or_default());238				Expr::ArrComp(expr, specs)239			}240		pub rule number_expr(s: &ParserSettings) -> Expr241			= n:number() {? if n.is_finite() {242				Ok(expr::Expr::Num(n))243			} else {244				Err("!!!numbers are finite")245			}}246		pub rule var_expr(s: &ParserSettings) -> Expr247			= n:id() { expr::Expr::Var(n) }248		pub rule id_loc(s: &ParserSettings) -> LocExpr249			= a:position!() n:id() b:position!() { LocExpr::new(expr::Expr::Str(n), Span(s.source.clone(), a as u32,b as u32)) }250		pub rule if_then_else_expr(s: &ParserSettings) -> Expr251			= cond:ifspec(s) _ keyword("then") _ cond_then:expr(s) cond_else:(_ keyword("else") _ e:expr(s) {e})? {Expr::IfElse{252				cond,253				cond_then,254				cond_else,255			}}256257		pub rule literal(s: &ParserSettings) -> Expr258			= v:(259				keyword("null") {LiteralType::Null}260				/ keyword("true") {LiteralType::True}261				/ keyword("false") {LiteralType::False}262				/ keyword("self") {LiteralType::This}263				/ keyword("$") {LiteralType::Dollar}264				/ keyword("super") {LiteralType::Super}265			) {Expr::Literal(v)}266267		pub rule expr_basic(s: &ParserSettings) -> Expr268			= literal(s)269270			/ string_expr(s) / number_expr(s)271			/ array_expr(s)272			/ obj_expr(s)273			/ array_expr(s)274			/ array_comp_expr(s)275276			/ keyword("importstr") _ path:expr(s) {Expr::ImportStr(path)}277			/ keyword("importbin") _ path:expr(s) {Expr::ImportBin(path)}278			/ keyword("import") _ path:expr(s) {Expr::Import(path)}279280			/ var_expr(s)281			/ local_expr(s)282			/ if_then_else_expr(s)283284			/ keyword("function") _ "(" _ params:params(s) _ ")" _ expr:expr(s) {Expr::Function(params, expr)}285			/ assertion:assertion(s) _ ";" _ expr:expr(s) { Expr::AssertExpr(assertion, expr) }286287			/ keyword("error") _ expr:expr(s) { Expr::ErrorStmt(expr) }288289		rule slice_part(s: &ParserSettings) -> Option<LocExpr>290			= _ e:(e:expr(s) _{e})? {e}291		pub rule slice_desc(s: &ParserSettings) -> SliceDesc292			= start:slice_part(s) ":" pair:(end:slice_part(s) step:(":" e:slice_part(s){e})? {(end, step.flatten())})? {293				let (end, step) = if let Some((end, step)) = pair {294					(end, step)295				}else{296					(None, None)297				};298299				SliceDesc { start, end, step }300			}301302		rule binop(x: rule<()>) -> ()303			= quiet!{ x() } / expected!("<binary op>")304		rule unaryop(x: rule<()>) -> ()305			= quiet!{ x() } / expected!("<unary op>")306307		rule ensure_null_coaelse()308			= "" {?309				#[cfg(not(feature = "exp-null-coaelse"))] return Err("!!!experimental null coaelscing was not enabled");310				#[cfg(feature = "exp-null-coaelse")] Ok(())311			}312		use BinaryOpType::*;313		use UnaryOpType::*;314		rule expr(s: &ParserSettings) -> LocExpr315			= precedence! {316				start:position!() v:@ end:position!() { LocExpr::new(v, Span(s.source.clone(), start as u32, end as u32)) }317				--318				a:(@) _ binop(<"||">) _ b:@ {expr_bin!(a Or b)}319				a:(@) _ binop(<"??">) _ ensure_null_coaelse() b:@ {320					#[cfg(feature = "exp-null-coaelse")] return expr_bin!(a NullCoaelse b);321					unreachable!("ensure_null_coaelse will fail if feature is not enabled")322				}323				--324				a:(@) _ binop(<"&&">) _ b:@ {expr_bin!(a And b)}325				--326				a:(@) _ binop(<"|">) _ b:@ {expr_bin!(a BitOr b)}327				--328				a:@ _ binop(<"^">) _ b:(@) {expr_bin!(a BitXor b)}329				--330				a:(@) _ binop(<"&">) _ b:@ {expr_bin!(a BitAnd b)}331				--332				a:(@) _ binop(<"==">) _ b:@ {expr_bin!(a Eq b)}333				a:(@) _ binop(<"!=">) _ b:@ {expr_bin!(a Neq b)}334				--335				a:(@) _ binop(<"<">) _ b:@ {expr_bin!(a Lt b)}336				a:(@) _ binop(<">">) _ b:@ {expr_bin!(a Gt b)}337				a:(@) _ binop(<"<=">) _ b:@ {expr_bin!(a Lte b)}338				a:(@) _ binop(<">=">) _ b:@ {expr_bin!(a Gte b)}339				a:(@) _ binop(<keyword("in")>) _ b:@ {expr_bin!(a In b)}340				--341				a:(@) _ binop(<"<<">) _ b:@ {expr_bin!(a Lhs b)}342				a:(@) _ binop(<">>">) _ b:@ {expr_bin!(a Rhs b)}343				--344				a:(@) _ binop(<"+">) _ b:@ {expr_bin!(a Add b)}345				a:(@) _ binop(<"-">) _ b:@ {expr_bin!(a Sub b)}346				--347				a:(@) _ binop(<"*">) _ b:@ {expr_bin!(a Mul b)}348				a:(@) _ binop(<"/">) _ b:@ {expr_bin!(a Div b)}349				a:(@) _ binop(<"%">) _ b:@ {expr_bin!(a Mod b)}350				--351						unaryop(<"+">) _ b:@ {expr_un!(Plus b)}352						unaryop(<"-">) _ b:@ {expr_un!(Minus b)}353						unaryop(<"!">) _ b:@ {expr_un!(Not b)}354						unaryop(<"~">) _ b:@ {expr_un!(BitNot b)}355				--356				a:(@) _ "[" _ e:slice_desc(s) _ "]" {Expr::Slice(a, e)}357				indexable:(@) _ parts:index_part(s)+ {Expr::Index{indexable, parts}}358				a:(@) _ "(" _ args:args(s) _ ")" ts:(_ keyword("tailstrict"))? {Expr::Apply(a, args, ts.is_some())}359				a:(@) _ "{" _ body:objinside(s) _ "}" {Expr::ObjExtend(a, body)}360				--361				e:expr_basic(s) {e}362				"(" _ e:expr(s) _ ")" {Expr::Parened(e)}363			}364		pub rule index_part(s: &ParserSettings) -> IndexPart365		= n:("?" _ ensure_null_coaelse())? "." _ value:id_loc(s) {IndexPart {366			value,367			#[cfg(feature = "exp-null-coaelse")]368			null_coaelse: n.is_some(),369		}}370		/ n:("?" _ "." _ ensure_null_coaelse())? "[" _ value:expr(s) _ "]" {IndexPart {371			value,372			#[cfg(feature = "exp-null-coaelse")]373			null_coaelse: n.is_some(),374		}}375376		pub rule jsonnet(s: &ParserSettings) -> LocExpr = _ e:expr(s) _ {e}377	}378}379380pub type ParseError = peg::error::ParseError<peg::str::LineCol>;381pub fn parse(str: &str, settings: &ParserSettings) -> Result<LocExpr, ParseError> {382	jsonnet_parser::jsonnet(str, settings)383}384/// Used for importstr values385pub fn string_to_expr(str: IStr, settings: &ParserSettings) -> LocExpr {386	let len = str.len();387	LocExpr::new(Expr::Str(str), Span(settings.source.clone(), 0, len as u32))388}389390#[cfg(test)]391pub mod tests {392	use jrsonnet_interner::IStr;393	use BinaryOpType::*;394395	use super::{expr::*, parse};396	use crate::{source::Source, ParserSettings};397398	macro_rules! parse {399		($s:expr) => {400			parse(401				$s,402				&ParserSettings {403					source: Source::new_virtual("<test>".into(), IStr::empty()),404				},405			)406			.unwrap()407		};408	}409410	macro_rules! el {411		($expr:expr, $from:expr, $to:expr$(,)?) => {412			LocExpr::new(413				$expr,414				Span(415					Source::new_virtual("<test>".into(), IStr::empty()),416					$from,417					$to,418				),419			)420		};421	}422423	#[test]424	fn multiline_string() {425		assert_eq!(426			parse!("|||\n    Hello world!\n     a\n|||"),427			el!(Expr::Str("Hello world!\n a\n".into()), 0, 31),428		);429		assert_eq!(430			parse!("|||\n  Hello world!\n   a\n|||"),431			el!(Expr::Str("Hello world!\n a\n".into()), 0, 27),432		);433		assert_eq!(434			parse!("|||\n\t\tHello world!\n\t\t\ta\n|||"),435			el!(Expr::Str("Hello world!\n\ta\n".into()), 0, 27),436		);437		assert_eq!(438			parse!("|||\n   Hello world!\n    a\n |||"),439			el!(Expr::Str("Hello world!\n a\n".into()), 0, 30),440		);441	}442443	#[test]444	fn slice() {445		parse!("a[1:]");446		parse!("a[1::]");447		parse!("a[:1:]");448		parse!("a[::1]");449		parse!("str[:len - 1]");450	}451452	#[test]453	fn string_escaping() {454		assert_eq!(455			parse!(r#""Hello, \"world\"!""#),456			el!(Expr::Str(r#"Hello, "world"!"#.into()), 0, 19),457		);458		assert_eq!(459			parse!(r#"'Hello \'world\'!'"#),460			el!(Expr::Str("Hello 'world'!".into()), 0, 18),461		);462		assert_eq!(parse!(r#"'\\\\'"#), el!(Expr::Str("\\\\".into()), 0, 6));463	}464465	#[test]466	fn string_unescaping() {467		assert_eq!(468			parse!(r#""Hello\nWorld""#),469			el!(Expr::Str("Hello\nWorld".into()), 0, 14),470		);471	}472473	#[test]474	fn string_verbantim() {475		assert_eq!(476			parse!(r#"@"Hello\n""World""""#),477			el!(Expr::Str("Hello\\n\"World\"".into()), 0, 19),478		);479	}480481	#[test]482	fn imports() {483		assert_eq!(484			parse!("import \"hello\""),485			el!(Expr::Import(el!(Expr::Str("hello".into()), 7, 14)), 0, 14),486		);487		assert_eq!(488			parse!("importstr \"garnish.txt\""),489			el!(490				Expr::ImportStr(el!(Expr::Str("garnish.txt".into()), 10, 23)),491				0,492				23493			)494		);495		assert_eq!(496			parse!("importbin \"garnish.bin\""),497			el!(498				Expr::ImportBin(el!(Expr::Str("garnish.bin".into()), 10, 23)),499				0,500				23501			)502		);503	}504505	#[test]506	fn empty_object() {507		assert_eq!(508			parse!("{}"),509			el!(Expr::Obj(ObjBody::MemberList(vec![])), 0, 2)510		);511	}512513	#[test]514	fn basic_math() {515		assert_eq!(516			parse!("2+2*2"),517			el!(518				Expr::BinaryOp(519					el!(Expr::Num(2.0), 0, 1),520					Add,521					el!(522						Expr::BinaryOp(el!(Expr::Num(2.0), 2, 3), Mul, el!(Expr::Num(2.0), 4, 5)),523						2,524						5525					)526				),527				0,528				5529			)530		);531	}532533	#[test]534	fn basic_math_with_indents() {535		assert_eq!(536			parse!("2	+ 	  2	  *	2   	"),537			el!(538				Expr::BinaryOp(539					el!(Expr::Num(2.0), 0, 1),540					Add,541					el!(542						Expr::BinaryOp(el!(Expr::Num(2.0), 7, 8), Mul, el!(Expr::Num(2.0), 13, 14),),543						7,544						14545					),546				),547				0,548				14549			)550		);551	}552553	#[test]554	fn basic_math_parened() {555		assert_eq!(556			parse!("2+(2+2*2)"),557			el!(558				Expr::BinaryOp(559					el!(Expr::Num(2.0), 0, 1),560					Add,561					el!(562						Expr::Parened(el!(563							Expr::BinaryOp(564								el!(Expr::Num(2.0), 3, 4),565								Add,566								el!(567									Expr::BinaryOp(568										el!(Expr::Num(2.0), 5, 6),569										Mul,570										el!(Expr::Num(2.0), 7, 8),571									),572									5,573									8574								),575							),576							3,577							8578						)),579						2,580						9581					),582				),583				0,584				9585			)586		);587	}588589	/// Comments should not affect parsing590	#[test]591	fn comments() {592		assert_eq!(593			parse!("2//comment\n+//comment\n3/*test*/*/*test*/4"),594			el!(595				Expr::BinaryOp(596					el!(Expr::Num(2.0), 0, 1),597					Add,598					el!(599						Expr::BinaryOp(600							el!(Expr::Num(3.0), 22, 23),601							Mul,602							el!(Expr::Num(4.0), 40, 41)603						),604						22,605						41606					)607				),608				0,609				41610			)611		);612	}613614	#[test]615	fn suffix() {616		// assert_eq!(parse!("std.test"), el!(Expr::Num(2.2)));617		// assert_eq!(parse!("std(2)"), el!(Expr::Num(2.2)));618		// assert_eq!(parse!("std.test(2)"), el!(Expr::Num(2.2)));619		// assert_eq!(parse!("a[b]"), el!(Expr::Num(2.2)))620	}621622	#[test]623	fn array_comp() {624		use Expr::*;625		/*626		`ArrComp(Apply(Index(Var("std") from "test.jsonnet":1-4, Var("deepJoin") from "test.jsonnet":5-13) from "test.jsonnet":1-13, ArgsDesc { unnamed: [Var("x") from "test.jsonnet":14-15], named: [] }, false) from "test.jsonnet":1-16, [ForSpec(ForSpecData("x", Var("arr") from "test.jsonnet":26-29))]) from "test.jsonnet":0-30`,627		`ArrComp(Apply(Index(Var("std") from "test.jsonnet":1-4, Str("deepJoin") from "test.jsonnet":5-13) from "test.jsonnet":1-13, ArgsDesc { unnamed: [Var("x") from "test.jsonnet":14-15], named: [] }, false) from "test.jsonnet":1-16, [ForSpec(ForSpecData("x", Var("arr") from "test.jsonnet":26-29))]) from "test.jsonnet":0-30`628				*/629		assert_eq!(630			parse!("[std.deepJoin(x) for x in arr]"),631			el!(632				ArrComp(633					el!(634						Apply(635							el!(636								Index {637									indexable: el!(Var("std".into()), 1, 4),638									parts: vec![IndexPart {639										value: el!(Str("deepJoin".into()), 5, 13),640										#[cfg(feature = "exp-null-coaelse")]641										null_coaelse: false,642									}],643								},644								1,645								13646							),647							ArgsDesc::new(vec![el!(Var("x".into()), 14, 15)], vec![]),648							false,649						),650						1,651						16652					),653					vec![CompSpec::ForSpec(ForSpecData(654						Destruct::Full("x".into()),655						el!(Var("arr".into()), 26, 29)656					))]657				),658				0,659				30660			),661		)662	}663664	#[test]665	fn reserved() {666		use Expr::*;667		assert_eq!(parse!("null"), el!(Literal(LiteralType::Null), 0, 4));668		assert_eq!(parse!("nulla"), el!(Var("nulla".into()), 0, 5));669	}670671	#[test]672	fn multiple_args_buf() {673		parse!("a(b, null_fields)");674	}675676	#[test]677	fn infix_precedence() {678		use Expr::*;679		assert_eq!(680			parse!("!a && !b"),681			el!(682				BinaryOp(683					el!(UnaryOp(UnaryOpType::Not, el!(Var("a".into()), 1, 2)), 0, 2),684					And,685					el!(UnaryOp(UnaryOpType::Not, el!(Var("b".into()), 7, 8)), 6, 8)686				),687				0,688				8689			)690		);691	}692693	#[test]694	fn infix_precedence_division() {695		use Expr::*;696		assert_eq!(697			parse!("!a / !b"),698			el!(699				BinaryOp(700					el!(UnaryOp(UnaryOpType::Not, el!(Var("a".into()), 1, 2)), 0, 2),701					Div,702					el!(UnaryOp(UnaryOpType::Not, el!(Var("b".into()), 6, 7)), 5, 7)703				),704				0,705				7706			)707		);708	}709710	#[test]711	fn double_negation() {712		use Expr::*;713		assert_eq!(714			parse!("!!a"),715			el!(716				UnaryOp(717					UnaryOpType::Not,718					el!(UnaryOp(UnaryOpType::Not, el!(Var("a".into()), 2, 3)), 1, 3)719				),720				0,721				3722			)723		)724	}725726	#[test]727	fn array_test_error() {728		parse!("[a for a in b if c for e in f]");729		//                    ^^^^ failed code730	}731732	#[test]733	fn missing_newline_between_comment_and_eof() {734		parse!(735			"{a:1}736737			//+213"738		);739	}740741	#[test]742	fn default_param_before_nondefault() {743		parse!("local x(foo = 'foo', bar) = null; null");744	}745746	#[test]747	fn add_location_info_to_all_sub_expressions() {748		use Expr::*;749750		let file_name = Source::new_virtual("<test>".into(), IStr::empty());751		let expr = parse(752			"{} { local x = 1, x: x } + {}",753			&ParserSettings { source: file_name },754		)755		.unwrap();756		assert_eq!(757			expr,758			el!(759				BinaryOp(760					el!(761						ObjExtend(762							el!(Obj(ObjBody::MemberList(vec![])), 0, 2),763							ObjBody::MemberList(vec![764								Member::BindStmt(BindSpec::Field {765									into: Destruct::Full("x".into()),766									value: el!(Num(1.0), 15, 16)767								}),768								Member::Field(FieldMember {769									name: FieldName::Fixed("x".into()),770									plus: false,771									params: None,772									visibility: Visibility::Normal,773									value: el!(Var("x".into()), 21, 22),774								})775							])776						),777						0,778						24779					),780					BinaryOpType::Add,781					el!(Obj(ObjBody::MemberList(vec![])), 27, 29),782				),783				0,784				29785			),786		);787	}788}