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, SourceDirectory, SourceFifo, SourceFile, SourcePath, SourcePathT, SourceVirtual,16};1718pub struct ParserSettings {19	pub source: Source,20}2122macro_rules! expr_bin {23	($a:ident $op:ident $b:ident) => {24		Expr::BinaryOp($a, $op, $b)25	};26}27macro_rules! expr_un {28	($op:ident $a:ident) => {29		Expr::UnaryOp($op, $a)30	};31}3233parser! {34	grammar jsonnet_parser() for str {35		use peg::ParseLiteral;3637		rule eof() = quiet!{![_]} / expected!("<eof>")38		rule eol() = "\n" / eof()3940		/// Standard C-like comments41		rule comment()42			= "//" (!eol()[_])* eol()43			/ "/*" (!("*/")[_])* "*/"44			/ "#" (!eol()[_])* eol()4546		rule single_whitespace() = quiet!{([' ' | '\r' | '\n' | '\t'] / comment())} / expected!("<whitespace>")47		rule _() = quiet!{([' ' | '\r' | '\n' | '\t']+) / comment()}* / expected!("<whitespace>")4849		/// For comma-delimited elements50		rule comma() = quiet!{_ "," _} / expected!("<comma>")51		rule alpha() -> char = c:$(['_' | 'a'..='z' | 'A'..='Z']) {c.chars().next().unwrap()}52		rule digit() -> char = d:$(['0'..='9']) {d.chars().next().unwrap()}53		rule end_of_ident() = !['0'..='9' | '_' | 'a'..='z' | 'A'..='Z']54		/// Sequence of digits55		rule uint_str() -> &'input str = a:$(digit()+) { a }56		/// Number in scientific notation format57		rule number() -> f64 = quiet!{a:$(uint_str() ("." uint_str())? (['e'|'E'] (s:['+'|'-'])? uint_str())?) {? a.parse().map_err(|_| "<number>") }} / expected!("<number>")5859		/// Reserved word followed by any non-alphanumberic60		rule reserved() = ("assert" / "else" / "error" / "false" / "for" / "function" / "if" / "import" / "importstr" / "importbin" / "in" / "local" / "null" / "tailstrict" / "then" / "self" / "super" / "true") end_of_ident()61		rule id() -> IStr = v:$(quiet!{ !reserved() alpha() (alpha() / digit())*} / expected!("<identifier>")) { v.into() }6263		rule keyword(id: &'static str) -> ()64			= ##parse_string_literal(id) end_of_ident()6566		pub rule param(s: &ParserSettings) -> expr::Param = name:destruct(s) expr:(_ "=" _ expr:expr(s){expr})? { expr::Param(name, expr) }67		pub rule params(s: &ParserSettings) -> expr::ParamsDesc68			= params:param(s) ** comma() comma()? { expr::ParamsDesc(Rc::new(params)) }69			/ { expr::ParamsDesc(Rc::new(Vec::new())) }7071		pub rule arg(s: &ParserSettings) -> (Option<IStr>, LocExpr)72			= name:(quiet! { (s:id() _ "=" !['='] _ {s})? } / expected!("<argument name>")) expr:expr(s) {(name, expr)}7374		pub rule args(s: &ParserSettings) -> expr::ArgsDesc75			= args:arg(s)**comma() comma()? {?76				let unnamed_count = args.iter().take_while(|(n, _)| n.is_none()).count();77				let mut unnamed = Vec::with_capacity(unnamed_count);78				let mut named = Vec::with_capacity(args.len() - unnamed_count);79				let mut named_started = false;80				for (name, value) in args {81					if let Some(name) = name {82						named_started = true;83						named.push((name, value));84					} else {85						if named_started {86							return Err("<named argument>")87						}88						unnamed.push(value);89					}90				}91				Ok(expr::ArgsDesc::new(unnamed, named))92			}9394		pub rule destruct_rest() -> expr::DestructRest95			= "..." into:(_ into:id() {into})? {if let Some(into) = into {96				expr::DestructRest::Keep(into)97			} else {expr::DestructRest::Drop}}98		pub rule destruct_array(s: &ParserSettings) -> expr::Destruct99			= "[" _ start:destruct(s)**comma() rest:(100				comma() _ rest:destruct_rest()? end:(101					comma() end:destruct(s)**comma() (_ comma())? {end}102					/ comma()? {Vec::new()}103				) {(rest, end)}104				/ comma()? {(None, Vec::new())}105			) _ "]" {?106				#[cfg(feature = "exp-destruct")] return Ok(expr::Destruct::Array {107					start,108					rest: rest.0,109					end: rest.1,110				});111				#[cfg(not(feature = "exp-destruct"))] Err("!!!experimental destructuring was not enabled")112			}113		pub rule destruct_object(s: &ParserSettings) -> expr::Destruct114			= "{" _115				fields:(name:id() into:(_ ":" _ into:destruct(s) {into})? default:(_ "=" _ v:expr(s) {v})? {(name, into, default)})**comma()116				rest:(117					comma() rest:destruct_rest()? {rest}118					/ comma()? {None}119				)120			_ "}" {?121				#[cfg(feature = "exp-destruct")] return Ok(expr::Destruct::Object {122					fields,123					rest,124				});125				#[cfg(not(feature = "exp-destruct"))] Err("!!!experimental destructuring was not enabled")126			}127		pub rule destruct(s: &ParserSettings) -> expr::Destruct128			= v:id() {expr::Destruct::Full(v)}129			/ "?" {?130				#[cfg(feature = "exp-destruct")] return Ok(expr::Destruct::Skip);131				#[cfg(not(feature = "exp-destruct"))] Err("!!!experimental destructuring was not enabled")132			}133			/ arr:destruct_array(s) {arr}134			/ obj:destruct_object(s) {obj}135136		pub rule bind(s: &ParserSettings) -> expr::BindSpec137			= into:destruct(s) _ "=" _ expr:expr(s) {expr::BindSpec::Field{into, value: expr}}138			/ name:id() _ "(" _ params:params(s) _ ")" _ "=" _ expr:expr(s) {expr::BindSpec::Function{name, params, value: expr}}139140		pub rule assertion(s: &ParserSettings) -> expr::AssertStmt141			= keyword("assert") _ cond:expr(s) msg:(_ ":" _ e:expr(s) {e})? { expr::AssertStmt(cond, msg) }142143		pub rule whole_line() -> &'input str144			= str:$((!['\n'][_])* "\n") {str}145		pub rule string_block() -> String146			= "|||" chomped:"-"? (!['\n']single_whitespace())* "\n"147			empty_lines:$(['\n']*)148			prefix:[' ' | '\t']+ first_line:whole_line()149			lines:("\n" {"\n"} / [' ' | '\t']*<{prefix.len()}> s:whole_line() {s})*150			[' ' | '\t']*<, {prefix.len() - 1}> "|||"151			{152				let mut l = empty_lines.to_owned();153				l.push_str(first_line);154				l.extend(lines);155				if chomped.is_some() {156					debug_assert!(l.ends_with('\n'));157					l.truncate(l.len() - 1);158				}159				l160			}161162		rule hex_char()163			= quiet! { ['0'..='9' | 'a'..='f' | 'A'..='F'] } / expected!("<hex char>")164165		rule string_char(c: rule<()>)166			= (!['\\']!c()[_])+167			/ "\\\\"168			/ "\\u" hex_char() hex_char() hex_char() hex_char()169			/ "\\x" hex_char() hex_char()170			/ ['\\'] (quiet! { ['b' | 'f' | 'n' | 'r' | 't' | '"' | '\''] } / expected!("<escape character>"))171		pub rule string() -> String172			= ['"'] str:$(string_char(<"\"">)*) ['"'] {? unescape::unescape(str).ok_or("<escaped string>")}173			/ ['\''] str:$(string_char(<"\'">)*) ['\''] {? unescape::unescape(str).ok_or("<escaped string>")}174			/ quiet!{ "@'" str:$(("''" / (!['\''][_]))*) "'" {str.replace("''", "'")}175			/ "@\"" str:$(("\"\"" / (!['"'][_]))*) "\"" {str.replace("\"\"", "\"")}176			/ string_block() } / expected!("<string>")177178		pub rule field_name(s: &ParserSettings) -> expr::FieldName179			= name:id() {expr::FieldName::Fixed(name)}180			/ name:string() {expr::FieldName::Fixed(name.into())}181			/ "[" _ expr:expr(s) _ "]" {expr::FieldName::Dyn(expr)}182		pub rule visibility() -> expr::Visibility183			= ":::" {expr::Visibility::Unhide}184			/ "::" {expr::Visibility::Hidden}185			/ ":" {expr::Visibility::Normal}186		pub rule field(s: &ParserSettings) -> expr::FieldMember187			= name:field_name(s) _ plus:"+"? _ visibility:visibility() _ value:expr(s) {expr::FieldMember{188				name,189				plus: plus.is_some(),190				params: None,191				visibility,192				value,193			}}194			/ name:field_name(s) _ "(" _ params:params(s) _ ")" _ visibility:visibility() _ value:expr(s) {expr::FieldMember{195				name,196				plus: false,197				params: Some(params),198				visibility,199				value,200			}}201		pub rule obj_local(s: &ParserSettings) -> BindSpec202			= keyword("local") _ bind:bind(s) {bind}203		pub rule member(s: &ParserSettings) -> expr::Member204			= bind:obj_local(s) {expr::Member::BindStmt(bind)}205			/ assertion:assertion(s) {expr::Member::AssertStmt(assertion)}206			/ field:field(s) {expr::Member::Field(field)}207		pub rule objinside(s: &ParserSettings) -> expr::ObjBody208			= 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})? {209				let mut compspecs = vec![CompSpec::ForSpec(forspec)];210				compspecs.extend(others.unwrap_or_default());211				expr::ObjBody::ObjComp(expr::ObjComp{212					pre_locals,213					field,214					post_locals,215					compspecs,216				})217			}218			/ members:(member(s) ** comma()) comma()? {expr::ObjBody::MemberList(members)}219		pub rule ifspec(s: &ParserSettings) -> IfSpecData220			= keyword("if") _ expr:expr(s) {IfSpecData(expr)}221		pub rule forspec(s: &ParserSettings) -> ForSpecData222			= keyword("for") _ id:destruct(s) _ keyword("in") _ cond:expr(s) {ForSpecData(id, cond)}223		pub rule compspec(s: &ParserSettings) -> Vec<expr::CompSpec>224			= s:(i:ifspec(s) { expr::CompSpec::IfSpec(i) } / f:forspec(s) {expr::CompSpec::ForSpec(f)} ) ** _ {s}225		pub rule local_expr(s: &ParserSettings) -> Expr226			= keyword("local") _ binds:bind(s) ** comma() (_ ",")? _ ";" _ expr:expr(s) { Expr::LocalExpr(binds, expr) }227		pub rule string_expr(s: &ParserSettings) -> Expr228			= s:string() {Expr::Str(s.into())}229		pub rule obj_expr(s: &ParserSettings) -> Expr230			= "{" _ body:objinside(s) _ "}" {Expr::Obj(body)}231		pub rule array_expr(s: &ParserSettings) -> Expr232			= "[" _ elems:(expr(s) ** comma()) _ comma()? "]" {Expr::Arr(elems)}233		pub rule array_comp_expr(s: &ParserSettings) -> Expr234			= "[" _ expr:expr(s) _ comma()? _ forspec:forspec(s) _ others:(others: compspec(s) _ {others})? "]" {235				let mut specs = vec![CompSpec::ForSpec(forspec)];236				specs.extend(others.unwrap_or_default());237				Expr::ArrComp(expr, specs)238			}239		pub rule number_expr(s: &ParserSettings) -> Expr240			= n:number() {? if n.is_finite() {241				Ok(expr::Expr::Num(n))242			} else {243				Err("!!!numbers are finite")244			}}245		pub rule var_expr(s: &ParserSettings) -> Expr246			= n:id() { expr::Expr::Var(n) }247		pub rule id_loc(s: &ParserSettings) -> LocExpr248			= a:position!() n:id() b:position!() { LocExpr::new(expr::Expr::Str(n), Span(s.source.clone(), a as u32,b as u32)) }249		pub rule if_then_else_expr(s: &ParserSettings) -> Expr250			= cond:ifspec(s) _ keyword("then") _ cond_then:expr(s) cond_else:(_ keyword("else") _ e:expr(s) {e})? {Expr::IfElse{251				cond,252				cond_then,253				cond_else,254			}}255256		pub rule literal(s: &ParserSettings) -> Expr257			= v:(258				keyword("null") {LiteralType::Null}259				/ keyword("true") {LiteralType::True}260				/ keyword("false") {LiteralType::False}261				/ keyword("self") {LiteralType::This}262				/ keyword("$") {LiteralType::Dollar}263				/ keyword("super") {LiteralType::Super}264			) {Expr::Literal(v)}265266		pub rule expr_basic(s: &ParserSettings) -> Expr267			= literal(s)268269			/ string_expr(s) / number_expr(s)270			/ array_expr(s)271			/ obj_expr(s)272			/ array_expr(s)273			/ array_comp_expr(s)274275			/ keyword("importstr") _ path:expr(s) {Expr::ImportStr(path)}276			/ keyword("importbin") _ path:expr(s) {Expr::ImportBin(path)}277			/ keyword("import") _ path:expr(s) {Expr::Import(path)}278279			/ var_expr(s)280			/ local_expr(s)281			/ if_then_else_expr(s)282283			/ keyword("function") _ "(" _ params:params(s) _ ")" _ expr:expr(s) {Expr::Function(params, expr)}284			/ assertion:assertion(s) _ ";" _ expr:expr(s) { Expr::AssertExpr(assertion, expr) }285286			/ keyword("error") _ expr:expr(s) { Expr::ErrorStmt(expr) }287288		rule slice_part(s: &ParserSettings) -> Option<LocExpr>289			= _ e:(e:expr(s) _{e})? {e}290		pub rule slice_desc(s: &ParserSettings) -> SliceDesc291			= start:slice_part(s) ":" pair:(end:slice_part(s) step:(":" e:slice_part(s){e})? {(end, step.flatten())})? {292				let (end, step) = if let Some((end, step)) = pair {293					(end, step)294				}else{295					(None, None)296				};297298				SliceDesc { start, end, step }299			}300301		rule binop(x: rule<()>) -> ()302			= quiet!{ x() } / expected!("<binary op>")303		rule unaryop(x: rule<()>) -> ()304			= quiet!{ x() } / expected!("<unary op>")305306		rule ensure_null_coaelse()307			= "" {?308				#[cfg(not(feature = "exp-null-coaelse"))] return Err("!!!experimental null coaelscing was not enabled");309				#[cfg(feature = "exp-null-coaelse")] Ok(())310			}311		use BinaryOpType::*;312		use UnaryOpType::*;313		rule expr(s: &ParserSettings) -> LocExpr314			= precedence! {315				start:position!() v:@ end:position!() { LocExpr::new(v, Span(s.source.clone(), start as u32, end as u32)) }316				--317				a:(@) _ binop(<"||">) _ b:@ {expr_bin!(a Or b)}318				a:(@) _ binop(<"??">) _ ensure_null_coaelse() b:@ {319					#[cfg(feature = "exp-null-coaelse")] return expr_bin!(a NullCoaelse b);320					unreachable!("ensure_null_coaelse will fail if feature is not enabled")321				}322				--323				a:(@) _ binop(<"&&">) _ b:@ {expr_bin!(a And b)}324				--325				a:(@) _ binop(<"|">) _ b:@ {expr_bin!(a BitOr b)}326				--327				a:@ _ binop(<"^">) _ b:(@) {expr_bin!(a BitXor b)}328				--329				a:(@) _ binop(<"&">) _ b:@ {expr_bin!(a BitAnd b)}330				--331				a:(@) _ binop(<"==">) _ b:@ {expr_bin!(a Eq b)}332				a:(@) _ binop(<"!=">) _ b:@ {expr_bin!(a Neq b)}333				--334				a:(@) _ binop(<"<">) _ b:@ {expr_bin!(a Lt b)}335				a:(@) _ binop(<">">) _ b:@ {expr_bin!(a Gt b)}336				a:(@) _ binop(<"<=">) _ b:@ {expr_bin!(a Lte b)}337				a:(@) _ binop(<">=">) _ b:@ {expr_bin!(a Gte b)}338				a:(@) _ binop(<keyword("in")>) _ b:@ {expr_bin!(a In b)}339				--340				a:(@) _ binop(<"<<">) _ b:@ {expr_bin!(a Lhs b)}341				a:(@) _ binop(<">>">) _ b:@ {expr_bin!(a Rhs b)}342				--343				a:(@) _ binop(<"+">) _ b:@ {expr_bin!(a Add b)}344				a:(@) _ binop(<"-">) _ b:@ {expr_bin!(a Sub b)}345				--346				a:(@) _ binop(<"*">) _ b:@ {expr_bin!(a Mul b)}347				a:(@) _ binop(<"/">) _ b:@ {expr_bin!(a Div b)}348				a:(@) _ binop(<"%">) _ b:@ {expr_bin!(a Mod b)}349				--350						unaryop(<"+">) _ b:@ {expr_un!(Plus b)}351						unaryop(<"-">) _ b:@ {expr_un!(Minus b)}352						unaryop(<"!">) _ b:@ {expr_un!(Not b)}353						unaryop(<"~">) _ b:@ {expr_un!(BitNot b)}354				--355				a:(@) _ "[" _ e:slice_desc(s) _ "]" {Expr::Slice(a, e)}356				indexable:(@) _ parts:index_part(s)+ {Expr::Index{indexable, parts}}357				a:(@) _ "(" _ args:args(s) _ ")" ts:(_ keyword("tailstrict"))? {Expr::Apply(a, args, ts.is_some())}358				a:(@) _ "{" _ body:objinside(s) _ "}" {Expr::ObjExtend(a, body)}359				--360				e:expr_basic(s) {e}361				"(" _ e:expr(s) _ ")" {Expr::Parened(e)}362			}363		pub rule index_part(s: &ParserSettings) -> IndexPart364		= n:("?" _ ensure_null_coaelse())? "." _ value:id_loc(s) {IndexPart {365			value,366			#[cfg(feature = "exp-null-coaelse")]367			null_coaelse: n.is_some(),368		}}369		/ n:("?" _ "." _ ensure_null_coaelse())? "[" _ value:expr(s) _ "]" {IndexPart {370			value,371			#[cfg(feature = "exp-null-coaelse")]372			null_coaelse: n.is_some(),373		}}374375		pub rule jsonnet(s: &ParserSettings) -> LocExpr = _ e:expr(s) _ {e}376	}377}378379pub type ParseError = peg::error::ParseError<peg::str::LineCol>;380pub fn parse(str: &str, settings: &ParserSettings) -> Result<LocExpr, ParseError> {381	jsonnet_parser::jsonnet(str, settings)382}383/// Used for importstr values384pub fn string_to_expr(str: IStr, settings: &ParserSettings) -> LocExpr {385	let len = str.len();386	LocExpr::new(Expr::Str(str), Span(settings.source.clone(), 0, len as u32))387}388389#[cfg(test)]390pub mod tests {391	use jrsonnet_interner::IStr;392	use BinaryOpType::*;393394	use super::{expr::*, parse};395	use crate::{source::Source, ParserSettings};396397	macro_rules! parse {398		($s:expr) => {399			parse(400				$s,401				&ParserSettings {402					source: Source::new_virtual("<test>".into(), IStr::empty()),403				},404			)405			.unwrap()406		};407	}408409	macro_rules! el {410		($expr:expr, $from:expr, $to:expr$(,)?) => {411			LocExpr::new(412				$expr,413				Span(414					Source::new_virtual("<test>".into(), IStr::empty()),415					$from,416					$to,417				),418			)419		};420	}421422	#[test]423	fn multiline_string() {424		assert_eq!(425			parse!("|||\n    Hello world!\n     a\n|||"),426			el!(Expr::Str("Hello world!\n a\n".into()), 0, 31),427		);428		assert_eq!(429			parse!("|||\n  Hello world!\n   a\n|||"),430			el!(Expr::Str("Hello world!\n a\n".into()), 0, 27),431		);432		assert_eq!(433			parse!("|||\n\t\tHello world!\n\t\t\ta\n|||"),434			el!(Expr::Str("Hello world!\n\ta\n".into()), 0, 27),435		);436		assert_eq!(437			parse!("|||\n   Hello world!\n    a\n |||"),438			el!(Expr::Str("Hello world!\n a\n".into()), 0, 30),439		);440	}441442	#[test]443	fn slice() {444		parse!("a[1:]");445		parse!("a[1::]");446		parse!("a[:1:]");447		parse!("a[::1]");448		parse!("str[:len - 1]");449	}450451	#[test]452	fn string_escaping() {453		assert_eq!(454			parse!(r#""Hello, \"world\"!""#),455			el!(Expr::Str(r#"Hello, "world"!"#.into()), 0, 19),456		);457		assert_eq!(458			parse!(r#"'Hello \'world\'!'"#),459			el!(Expr::Str("Hello 'world'!".into()), 0, 18),460		);461		assert_eq!(parse!(r#"'\\\\'"#), el!(Expr::Str("\\\\".into()), 0, 6));462	}463464	#[test]465	fn string_unescaping() {466		assert_eq!(467			parse!(r#""Hello\nWorld""#),468			el!(Expr::Str("Hello\nWorld".into()), 0, 14),469		);470	}471472	#[test]473	fn string_verbantim() {474		assert_eq!(475			parse!(r#"@"Hello\n""World""""#),476			el!(Expr::Str("Hello\\n\"World\"".into()), 0, 19),477		);478	}479480	#[test]481	fn imports() {482		assert_eq!(483			parse!("import \"hello\""),484			el!(Expr::Import(el!(Expr::Str("hello".into()), 7, 14)), 0, 14),485		);486		assert_eq!(487			parse!("importstr \"garnish.txt\""),488			el!(489				Expr::ImportStr(el!(Expr::Str("garnish.txt".into()), 10, 23)),490				0,491				23492			)493		);494		assert_eq!(495			parse!("importbin \"garnish.bin\""),496			el!(497				Expr::ImportBin(el!(Expr::Str("garnish.bin".into()), 10, 23)),498				0,499				23500			)501		);502	}503504	#[test]505	fn empty_object() {506		assert_eq!(507			parse!("{}"),508			el!(Expr::Obj(ObjBody::MemberList(vec![])), 0, 2)509		);510	}511512	#[test]513	fn basic_math() {514		assert_eq!(515			parse!("2+2*2"),516			el!(517				Expr::BinaryOp(518					el!(Expr::Num(2.0), 0, 1),519					Add,520					el!(521						Expr::BinaryOp(el!(Expr::Num(2.0), 2, 3), Mul, el!(Expr::Num(2.0), 4, 5)),522						2,523						5524					)525				),526				0,527				5528			)529		);530	}531532	#[test]533	fn basic_math_with_indents() {534		assert_eq!(535			parse!("2	+ 	  2	  *	2   	"),536			el!(537				Expr::BinaryOp(538					el!(Expr::Num(2.0), 0, 1),539					Add,540					el!(541						Expr::BinaryOp(el!(Expr::Num(2.0), 7, 8), Mul, el!(Expr::Num(2.0), 13, 14),),542						7,543						14544					),545				),546				0,547				14548			)549		);550	}551552	#[test]553	fn basic_math_parened() {554		assert_eq!(555			parse!("2+(2+2*2)"),556			el!(557				Expr::BinaryOp(558					el!(Expr::Num(2.0), 0, 1),559					Add,560					el!(561						Expr::Parened(el!(562							Expr::BinaryOp(563								el!(Expr::Num(2.0), 3, 4),564								Add,565								el!(566									Expr::BinaryOp(567										el!(Expr::Num(2.0), 5, 6),568										Mul,569										el!(Expr::Num(2.0), 7, 8),570									),571									5,572									8573								),574							),575							3,576							8577						)),578						2,579						9580					),581				),582				0,583				9584			)585		);586	}587588	/// Comments should not affect parsing589	#[test]590	fn comments() {591		assert_eq!(592			parse!("2//comment\n+//comment\n3/*test*/*/*test*/4"),593			el!(594				Expr::BinaryOp(595					el!(Expr::Num(2.0), 0, 1),596					Add,597					el!(598						Expr::BinaryOp(599							el!(Expr::Num(3.0), 22, 23),600							Mul,601							el!(Expr::Num(4.0), 40, 41)602						),603						22,604						41605					)606				),607				0,608				41609			)610		);611	}612613	#[test]614	fn suffix() {615		// assert_eq!(parse!("std.test"), el!(Expr::Num(2.2)));616		// assert_eq!(parse!("std(2)"), el!(Expr::Num(2.2)));617		// assert_eq!(parse!("std.test(2)"), el!(Expr::Num(2.2)));618		// assert_eq!(parse!("a[b]"), el!(Expr::Num(2.2)))619	}620621	#[test]622	fn array_comp() {623		use Expr::*;624		/*625		`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`,626		`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`627				*/628		assert_eq!(629			parse!("[std.deepJoin(x) for x in arr]"),630			el!(631				ArrComp(632					el!(633						Apply(634							el!(635								Index {636									indexable: el!(Var("std".into()), 1, 4),637									parts: vec![IndexPart {638										value: el!(Str("deepJoin".into()), 5, 13),639										#[cfg(feature = "exp-null-coaelse")]640										null_coaelse: false,641									}],642								},643								1,644								13645							),646							ArgsDesc::new(vec![el!(Var("x".into()), 14, 15)], vec![]),647							false,648						),649						1,650						16651					),652					vec![CompSpec::ForSpec(ForSpecData(653						Destruct::Full("x".into()),654						el!(Var("arr".into()), 26, 29)655					))]656				),657				0,658				30659			),660		)661	}662663	#[test]664	fn reserved() {665		use Expr::*;666		assert_eq!(parse!("null"), el!(Literal(LiteralType::Null), 0, 4));667		assert_eq!(parse!("nulla"), el!(Var("nulla".into()), 0, 5));668	}669670	#[test]671	fn multiple_args_buf() {672		parse!("a(b, null_fields)");673	}674675	#[test]676	fn infix_precedence() {677		use Expr::*;678		assert_eq!(679			parse!("!a && !b"),680			el!(681				BinaryOp(682					el!(UnaryOp(UnaryOpType::Not, el!(Var("a".into()), 1, 2)), 0, 2),683					And,684					el!(UnaryOp(UnaryOpType::Not, el!(Var("b".into()), 7, 8)), 6, 8)685				),686				0,687				8688			)689		);690	}691692	#[test]693	fn infix_precedence_division() {694		use Expr::*;695		assert_eq!(696			parse!("!a / !b"),697			el!(698				BinaryOp(699					el!(UnaryOp(UnaryOpType::Not, el!(Var("a".into()), 1, 2)), 0, 2),700					Div,701					el!(UnaryOp(UnaryOpType::Not, el!(Var("b".into()), 6, 7)), 5, 7)702				),703				0,704				7705			)706		);707	}708709	#[test]710	fn double_negation() {711		use Expr::*;712		assert_eq!(713			parse!("!!a"),714			el!(715				UnaryOp(716					UnaryOpType::Not,717					el!(UnaryOp(UnaryOpType::Not, el!(Var("a".into()), 2, 3)), 1, 3)718				),719				0,720				3721			)722		)723	}724725	#[test]726	fn array_test_error() {727		parse!("[a for a in b if c for e in f]");728		//                    ^^^^ failed code729	}730731	#[test]732	fn missing_newline_between_comment_and_eof() {733		parse!(734			"{a:1}735736			//+213"737		);738	}739740	#[test]741	fn default_param_before_nondefault() {742		parse!("local x(foo = 'foo', bar) = null; null");743	}744745	#[test]746	fn add_location_info_to_all_sub_expressions() {747		use Expr::*;748749		let file_name = Source::new_virtual("<test>".into(), IStr::empty());750		let expr = parse(751			"{} { local x = 1, x: x } + {}",752			&ParserSettings { source: file_name },753		)754		.unwrap();755		assert_eq!(756			expr,757			el!(758				BinaryOp(759					el!(760						ObjExtend(761							el!(Obj(ObjBody::MemberList(vec![])), 0, 2),762							ObjBody::MemberList(vec![763								Member::BindStmt(BindSpec::Field {764									into: Destruct::Full("x".into()),765									value: el!(Num(1.0), 15, 16)766								}),767								Member::Field(FieldMember {768									name: FieldName::Fixed("x".into()),769									plus: false,770									params: None,771									visibility: Visibility::Normal,772									value: el!(Var("x".into()), 21, 22),773								})774							])775						),776						0,777						24778					),779					BinaryOpType::Add,780					el!(Obj(ObjBody::MemberList(vec![])), 27, 29),781				),782				0,783				29784			),785		);786	}787}