git.delta.rocks / jrsonnet / refs/commits / 7d9fe5cc7023

1use crate::{2	context_creator, create_error, create_error_result, escape_string_json, future_wrapper,3	lazy_val, manifest_json_ex, parse_args, push, with_state, Context, ContextCreator, Error,4	FuncDesc, LazyBinding, LazyVal, ObjMember, ObjValue, Result, Val, ValType,5};6use closure::closure;7use jrsonnet_parser::{8	ArgsDesc, AssertStmt, BinaryOpType, BindSpec, CompSpec, Expr, ExprLocation, FieldMember,9	ForSpecData, IfSpecData, LiteralType, LocExpr, Member, ObjBody, ParamsDesc, UnaryOpType,10	Visibility,11};12use std::{collections::HashMap, rc::Rc};1314pub fn evaluate_binding(b: &BindSpec, context_creator: ContextCreator) -> (Rc<str>, LazyBinding) {15	let b = b.clone();16	if let Some(params) = &b.params {17		let params = params.clone();18		(19			b.name.clone(),20			LazyBinding::Bindable(Rc::new(move |this, super_obj| {21				Ok(lazy_val!(22					closure!(clone b, clone params, clone context_creator, || Ok(evaluate_method(23						context_creator.0(this.clone(), super_obj.clone())?,24						params.clone(),25						b.value.clone(),26					)))27				))28			})),29		)30	} else {31		(32			b.name.clone(),33			LazyBinding::Bindable(Rc::new(move |this, super_obj| {34				Ok(lazy_val!(closure!(clone context_creator, clone b, ||35					push(&b.value.1, "thunk", ||{36						evaluate(37							context_creator.0(this.clone(), super_obj.clone())?,38							&b.value39						)40					})41				)))42			})),43		)44	}45}4647pub fn evaluate_method(ctx: Context, params: ParamsDesc, body: LocExpr) -> Val {48	Val::Func(FuncDesc { ctx, params, body })49}5051pub fn evaluate_field_name(52	context: Context,53	field_name: &jrsonnet_parser::FieldName,54) -> Result<Option<Rc<str>>> {55	Ok(match field_name {56		jrsonnet_parser::FieldName::Fixed(n) => Some(n.clone()),57		jrsonnet_parser::FieldName::Dyn(expr) => {58			let lazy = evaluate(context, expr)?;59			let value = lazy.unwrap_if_lazy()?;60			if matches!(value, Val::Null) {61				None62			} else {63				Some(value.try_cast_str("dynamic field name")?)64			}65		}66	})67}6869pub fn evaluate_unary_op(op: UnaryOpType, b: &Val) -> Result<Val> {70	Ok(match (op, b) {71		(o, Val::Lazy(l)) => evaluate_unary_op(o, &l.evaluate()?)?,72		(UnaryOpType::Not, Val::Bool(v)) => Val::Bool(!v),73		(UnaryOpType::Minus, Val::Num(n)) => Val::Num(-*n),74		(UnaryOpType::BitNot, Val::Num(n)) => Val::Num(!(*n as i32) as f64),75		(op, o) => create_error_result(Error::UnaryOperatorDoesNotOperateOnType(76			op,77			o.value_type()?,78		))?,79	})80}8182pub(crate) fn evaluate_add_op(a: &Val, b: &Val) -> Result<Val> {83	Ok(match (a, b) {84		(Val::Str(v1), Val::Str(v2)) => Val::Str(((**v1).to_owned() + &v2).into()),8586		// Can't use generic json serialization way, because it depends on number to string concatenation (std.jsonnet:890)87		(Val::Num(n), Val::Str(o)) => Val::Str(format!("{}{}", n, o).into()),88		(Val::Str(o), Val::Num(n)) => Val::Str(format!("{}{}", o, n).into()),8990		(Val::Str(s), o) => Val::Str(format!("{}{}", s, o.clone().into_json(0)?).into()),91		(o, Val::Str(s)) => Val::Str(format!("{}{}", o.clone().into_json(0)?, s).into()),9293		(Val::Obj(v1), Val::Obj(v2)) => Val::Obj(v2.with_super(v1.clone())),94		(Val::Arr(a), Val::Arr(b)) => Val::Arr(Rc::new([&a[..], &b[..]].concat())),95		(Val::Num(v1), Val::Num(v2)) => Val::new_checked_num(v1 + v2)?,96		_ => create_error_result(Error::BinaryOperatorDoesNotOperateOnValues(97			BinaryOpType::Add,98			a.value_type()?,99			b.value_type()?,100		))?,101	})102}103104pub fn evaluate_binary_op_special(105	context: Context,106	a: &LocExpr,107	op: BinaryOpType,108	b: &LocExpr,109) -> Result<Val> {110	Ok(111		match (evaluate(context.clone(), &a)?.unwrap_if_lazy()?, op, b) {112			(Val::Bool(true), BinaryOpType::Or, _o) => Val::Bool(true),113			(Val::Bool(false), BinaryOpType::And, _o) => Val::Bool(false),114			(a, op, eb) => {115				evaluate_binary_op_normal(&a, op, &evaluate(context, eb)?.unwrap_if_lazy()?)?116			}117		},118	)119}120121pub fn evaluate_binary_op_normal(a: &Val, op: BinaryOpType, b: &Val) -> Result<Val> {122	Ok(match (a, op, b) {123		(a, BinaryOpType::Add, b) => evaluate_add_op(a, b)?,124125		(Val::Str(v1), BinaryOpType::Mul, Val::Num(v2)) => Val::Str(v1.repeat(*v2 as usize).into()),126127		// Bool X Bool128		(Val::Bool(a), BinaryOpType::And, Val::Bool(b)) => Val::Bool(*a && *b),129		(Val::Bool(a), BinaryOpType::Or, Val::Bool(b)) => Val::Bool(*a || *b),130131		// Str X Str132		(Val::Str(v1), BinaryOpType::Lt, Val::Str(v2)) => Val::Bool(v1 < v2),133		(Val::Str(v1), BinaryOpType::Gt, Val::Str(v2)) => Val::Bool(v1 > v2),134		(Val::Str(v1), BinaryOpType::Lte, Val::Str(v2)) => Val::Bool(v1 <= v2),135		(Val::Str(v1), BinaryOpType::Gte, Val::Str(v2)) => Val::Bool(v1 >= v2),136137		// Num X Num138		(Val::Num(v1), BinaryOpType::Mul, Val::Num(v2)) => Val::new_checked_num(v1 * v2)?,139		(Val::Num(v1), BinaryOpType::Div, Val::Num(v2)) => {140			if *v2 <= f64::EPSILON {141				create_error_result(crate::Error::DivisionByZero)?142			}143			Val::new_checked_num(v1 / v2)?144		}145146		(Val::Num(v1), BinaryOpType::Sub, Val::Num(v2)) => Val::new_checked_num(v1 - v2)?,147148		(Val::Num(v1), BinaryOpType::Lt, Val::Num(v2)) => Val::Bool(v1 < v2),149		(Val::Num(v1), BinaryOpType::Gt, Val::Num(v2)) => Val::Bool(v1 > v2),150		(Val::Num(v1), BinaryOpType::Lte, Val::Num(v2)) => Val::Bool(v1 <= v2),151		(Val::Num(v1), BinaryOpType::Gte, Val::Num(v2)) => Val::Bool(v1 >= v2),152153		(Val::Num(v1), BinaryOpType::BitAnd, Val::Num(v2)) => {154			Val::Num(((*v1 as i32) & (*v2 as i32)) as f64)155		}156		(Val::Num(v1), BinaryOpType::BitOr, Val::Num(v2)) => {157			Val::Num(((*v1 as i32) | (*v2 as i32)) as f64)158		}159		(Val::Num(v1), BinaryOpType::BitXor, Val::Num(v2)) => {160			Val::Num(((*v1 as i32) ^ (*v2 as i32)) as f64)161		}162		(Val::Num(v1), BinaryOpType::Lhs, Val::Num(v2)) => {163			if *v2 < 0.0 {164				create_error_result(Error::RuntimeError("shift by negative exponent".into()))?165			}166			Val::Num(((*v1 as i32) << (*v2 as i32)) as f64)167		}168		(Val::Num(v1), BinaryOpType::Rhs, Val::Num(v2)) => {169			if *v2 < 0.0 {170				create_error_result(Error::RuntimeError("shift by negative exponent".into()))?171			}172			Val::Num(((*v1 as i32) >> (*v2 as i32)) as f64)173		}174175		_ => create_error_result(Error::BinaryOperatorDoesNotOperateOnValues(176			op,177			a.value_type()?,178			b.value_type()?,179		))?,180	})181}182183future_wrapper!(HashMap<Rc<str>, LazyBinding>, FutureNewBindings);184future_wrapper!(ObjValue, FutureObjValue);185186pub fn evaluate_comp<T>(187	context: Context,188	value: &impl Fn(Context) -> Result<T>,189	specs: &[CompSpec],190) -> Result<Option<Vec<T>>> {191	Ok(match specs.get(0) {192		None => Some(vec![value(context)?]),193		Some(CompSpec::IfSpec(IfSpecData(cond))) => {194			if evaluate(context.clone(), &cond)?.try_cast_bool("if spec")? {195				evaluate_comp(context, value, &specs[1..])?196			} else {197				None198			}199		}200		Some(CompSpec::ForSpec(ForSpecData(var, expr))) => {201			match evaluate(context.clone(), &expr)?.unwrap_if_lazy()? {202				Val::Arr(list) => {203					let mut out = Vec::new();204					for item in list.iter() {205						let item = item.unwrap_if_lazy()?;206						out.push(evaluate_comp(207							context.with_var(var.clone(), item.clone())?,208							value,209							&specs[1..],210						)?);211					}212					Some(out.into_iter().flatten().flatten().collect())213				}214				_ => create_error_result(Error::InComprehensionCanOnlyIterateOverArray)?,215			}216		}217	})218}219220pub fn evaluate_member_list_object(context: Context, members: &[Member]) -> Result<ObjValue> {221	let new_bindings = FutureNewBindings::new();222	let future_this = FutureObjValue::new();223	let context_creator = context_creator!(224		closure!(clone context, clone new_bindings, |this: Option<ObjValue>, super_obj: Option<ObjValue>| {225			Ok(context.extend_unbound(226				new_bindings.clone().unwrap(),227				context.dollar().clone().or_else(||this.clone()),228				Some(this.unwrap()),229				super_obj230			)?)231		})232	);233	{234		let mut bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();235		for (n, b) in members236			.iter()237			.filter_map(|m| match m {238				Member::BindStmt(b) => Some(b.clone()),239				_ => None,240			})241			.map(|b| evaluate_binding(&b, context_creator.clone()))242		{243			bindings.insert(n, b);244		}245		new_bindings.fill(bindings);246	}247248	let mut new_members = HashMap::new();249	for member in members.iter() {250		match member {251			Member::Field(FieldMember {252				name,253				plus,254				params: None,255				visibility,256				value,257			}) => {258				let name = evaluate_field_name(context.clone(), &name)?;259				if name.is_none() {260					continue;261				}262				let name = name.unwrap();263				new_members.insert(264					name.clone(),265					ObjMember {266						add: *plus,267						visibility: *visibility,268						invoke: LazyBinding::Bindable(Rc::new(269							closure!(clone name, clone value, clone context_creator, |this, super_obj| {270								Ok(LazyVal::new_resolved(push(&value.1, "object field", ||{271									let context = context_creator.0(this, super_obj)?;272									evaluate(273										context,274										&value,275									)276								})?))277							}),278						)),279					},280				);281			}282			Member::Field(FieldMember {283				name,284				params: Some(params),285				value,286				..287			}) => {288				let name = evaluate_field_name(context.clone(), &name)?;289				if name.is_none() {290					continue;291				}292				let name = name.unwrap();293				new_members.insert(294					name,295					ObjMember {296						add: false,297						visibility: Visibility::Hidden,298						invoke: LazyBinding::Bindable(Rc::new(299							closure!(clone value, clone context_creator, clone params, |this, super_obj| {300								// TODO: Assert301								Ok(LazyVal::new_resolved(evaluate_method(302									context_creator.0(this, super_obj)?,303									params.clone(),304									value.clone(),305								)))306							}),307						)),308					},309				);310			}311			Member::BindStmt(_) => {}312			Member::AssertStmt(_) => {}313		}314	}315	Ok(future_this.fill(ObjValue::new(None, Rc::new(new_members))))316}317318pub fn evaluate_object(context: Context, object: &ObjBody) -> Result<ObjValue> {319	Ok(match object {320		ObjBody::MemberList(members) => evaluate_member_list_object(context, &members)?,321		ObjBody::ObjComp(obj) => {322			let future_this = FutureObjValue::new();323			let mut new_members = HashMap::new();324			for (k, v) in evaluate_comp(325				context.clone(),326				&|ctx| {327					let new_bindings = FutureNewBindings::new();328					let context_creator = context_creator!(329						closure!(clone context, clone new_bindings, |this: Option<ObjValue>, super_obj: Option<ObjValue>| {330							Ok(context.extend_unbound(331								new_bindings.clone().unwrap(),332								context.dollar().clone().or_else(||this.clone()),333								None,334								super_obj335							)?)336						})337					);338					let mut bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();339					for (n, b) in obj340						.pre_locals341						.iter()342						.chain(obj.post_locals.iter())343						.map(|b| evaluate_binding(b, context_creator.clone()))344					{345						bindings.insert(n, b);346					}347					let bindings = new_bindings.fill(bindings);348					let ctx = ctx.extend_unbound(bindings, None, None, None)?;349					let key = evaluate(ctx.clone(), &obj.key)?;350					let value = LazyBinding::Bindable(Rc::new(351						closure!(clone ctx, clone obj.value, |this, _super_obj| {352							Ok(LazyVal::new_resolved(evaluate(ctx.extend(HashMap::new(), None, this, None)?, &value)?))353						}),354					));355356					Ok((key, value))357				},358				&obj.compspecs,359			)?360			.unwrap()361			{362				match k {363					Val::Null => {}364					Val::Str(n) => {365						new_members.insert(366							n,367							ObjMember {368								add: false,369								visibility: Visibility::Normal,370								invoke: v,371							},372						);373					}374					v => create_error_result(Error::FieldMustBeStringGot(v.value_type()?))?,375				}376			}377378			future_this.fill(ObjValue::new(None, Rc::new(new_members)))379		}380	})381}382383/// Extracts code block and disables inlining for them384/// Fixes WASM to java bytecode compilation failing because of very large method385macro_rules! noinline {386	($e:expr) => {387		(#[inline(never)]388		move || $e)()389	};390}391392pub fn evaluate_apply(393	context: Context,394	value: &LocExpr,395	args: &ArgsDesc,396	loc: &Option<ExprLocation>,397	tailstrict: bool,398) -> Result<Val> {399	let lazy = evaluate(context.clone(), value)?;400	let value = lazy.unwrap_if_lazy()?;401	Ok(match value {402		Val::Intristic(ns, name) => match (&ns as &str, &name as &str) {403			// arr/string/function404			("std", "length") => noinline!(parse_args!(context, "std.length", args, 1, [405				0, x: [Val::Str|Val::Arr|Val::Obj], vec![ValType::Str, ValType::Arr, ValType::Obj];406			], {407				Ok(match x {408					Val::Str(n) => Val::Num(n.chars().count() as f64),409					Val::Arr(i) => Val::Num(i.len() as f64),410					Val::Obj(o) => Val::Num(411						o.fields_visibility()412							.into_iter()413							.filter(|(_k, v)| *v)414							.count() as f64,415					),416					_ => unreachable!(),417				})418			}))?,419			// any420			("std", "type") => parse_args!(context, "std.type", args, 1, [421				0, x, vec![];422			], {423				Val::Str(x.value_type()?.name().into())424			}),425			// length, idx=>any426			("std", "makeArray") => noinline!(parse_args!(context, "std.makeArray", args, 2, [427				0, sz: [Val::Num]!!Val::Num, vec![ValType::Num];428				1, func: [Val::Func]!!Val::Func, vec![ValType::Func];429			], {430				if sz < 0.0 {431					create_error_result(crate::error::Error::RuntimeError(format!("makeArray requires size >= 0, got {}", sz).into()))?;432				}433				let mut out = Vec::with_capacity(sz as usize);434				for i in 0..sz as usize {435					out.push(func.evaluate_values(436						Context::new(),437						&[Val::Num(i as f64)]438					)?)439				}440				Ok(Val::Arr(Rc::new(out)))441			}))?,442			// string443			("std", "codepoint") => parse_args!(context, "std.codepoint", args, 1, [444				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];445			], {446				assert!(447					str.chars().count() == 1,448					"std.codepoint should receive single char string"449				);450				Val::Num(str.chars().take(1).next().unwrap() as u32 as f64)451			}),452			// object, includeHidden453			("std", "objectFieldsEx") => {454				noinline!(parse_args!(context, "std.objectFieldsEx",args, 2, [455					0, obj: [Val::Obj]!!Val::Obj, vec![ValType::Obj];456					1, inc_hidden: [Val::Bool]!!Val::Bool, vec![ValType::Bool];457				], {458					let mut out = obj.fields_visibility()459						.into_iter()460						.filter(|(_k, v)| *v || inc_hidden)461						.map(|(k, _v)|k)462						.collect::<Vec<_>>();463					out.sort();464					Ok(Val::Arr(Rc::new(out.into_iter().map(Val::Str).collect())))465				}))?466			}467			// object, field, includeHidden468			("std", "objectHasEx") => parse_args!(context, "std.objectHasEx", args, 3, [469				0, obj: [Val::Obj]!!Val::Obj, vec![ValType::Obj];470				1, f: [Val::Str]!!Val::Str, vec![ValType::Str];471				2, inc_hidden: [Val::Bool]!!Val::Bool, vec![ValType::Bool];472			], {473				Val::Bool(474					obj.fields_visibility()475						.into_iter()476						.filter(|(_k, v)| *v || inc_hidden)477						.any(|(k, _v)| *k == *f),478				)479			}),480			("std", "primitiveEquals") => parse_args!(context, "std.primitiveEquals", args, 2, [481				0, a, vec![];482				1, b, vec![];483			], {484				Val::Bool(a == b)485			}),486			("std", "modulo") => parse_args!(context, "std.modulo", args, 2, [487				0, a: [Val::Num]!!Val::Num, vec![ValType::Num];488				1, b: [Val::Num]!!Val::Num, vec![ValType::Num];489			], {490				Val::Num(a % b)491			}),492			("std", "floor") => parse_args!(context, "std.floor", args, 1, [493				0, x: [Val::Num]!!Val::Num, vec![ValType::Num];494			], {495				Val::Num(x.floor())496			}),497			("std", "trace") => parse_args!(context, "std.trace", args, 2, [498				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];499				1, rest, vec![];500			], {501				eprint!("TRACE: ");502				if let Some(loc) = loc {503					with_state(|s|{504						let locs = s.map_source_locations(&loc.0, &[loc.1]);505						eprint!("{}:{} ", loc.0.display(), locs[0].line);506					});507				}508				eprintln!("{}", str);509				rest510			}),511			("std", "pow") => parse_args!(context, "std.modulo", args, 2, [512				0, x: [Val::Num]!!Val::Num, vec![ValType::Num];513				1, n: [Val::Num]!!Val::Num, vec![ValType::Num];514			], {515				Val::Num(x.powf(n))516			}),517			("std", "extVar") => parse_args!(context, "std.extVar", args, 2, [518				0, x: [Val::Str]!!Val::Str, vec![ValType::Str];519			], {520				with_state(|s| s.settings().ext_vars.get(&x).cloned()).ok_or_else(521					|| create_error(crate::Error::UndefinedExternalVariable(x)),522				)?523			}),524			("std", "filter") => noinline!(parse_args!(context, "std.filter", args, 2, [525				0, func: [Val::Func]!!Val::Func, vec![ValType::Func];526				1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];527			], {528				Ok(Val::Arr(Rc::new(529					arr.iter()530						.cloned()531						.filter(|e| {532							func533								.evaluate_values(context.clone(), &[e.clone()])534								.unwrap()535								.try_cast_bool("filter predicate")536								.unwrap()537						})538						.collect(),539				)))540			}))?,541			("std", "char") => parse_args!(context, "std.char", args, 1, [542				0, n: [Val::Num]!!Val::Num, vec![ValType::Num];543			], {544				let mut out = String::new();545				out.push(std::char::from_u32(n as u32).unwrap());546				Val::Str(out.into())547			}),548			("std", "encodeUTF8") => parse_args!(context, "std.encodeUtf8", args, 1, [549				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];550			], {551				Val::Arr(Rc::new(str.bytes().map(|b| Val::Num(b as f64)).collect()))552			}),553			("std", "md5") => noinline!(parse_args!(context, "std.md5", args, 1, [554				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];555			], {556				Ok(Val::Str(format!("{:x}", md5::compute(&str.as_bytes())).into()))557			}))?,558			// faster559			("std", "join") => noinline!(parse_args!(context, "std.join", args, 2, [560				0, sep: [Val::Str|Val::Arr], vec![ValType::Str, ValType::Arr];561				1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];562			], {563				Ok(match sep {564					Val::Arr(joiner_items) => {565						let mut out = Vec::new();566567						let mut first = true;568						for item in arr.iter().cloned() {569							if let Val::Arr(items) = item.unwrap_if_lazy()? {570								if !first {571									out.reserve(joiner_items.len());572									out.extend(joiner_items.iter().cloned());573								}574								first = false;575								out.reserve(items.len());576								out.extend(items.iter().cloned());577							} else {578								create_error_result(crate::Error::RuntimeError("in std.join all items should be arrays".into()))?;579							}580						}581582						Val::Arr(Rc::new(out))583					},584					Val::Str(sep) => {585						let mut out = String::new();586587						let mut first = true;588						for item in arr.iter().cloned() {589							if let Val::Str(item) = item.unwrap_if_lazy()? {590								if !first {591									out += &sep;592								}593								first = false;594								out += &item;595							} else {596								create_error_result(crate::Error::RuntimeError("in std.join all items should be strings".into()))?;597							}598						}599600						Val::Str(out.into())601					},602					_ => unreachable!()603				})604			}))?,605			// Faster606			("std", "escapeStringJson") => parse_args!(context, "std.escapeStringJson", args, 1, [607				0, str_: [Val::Str]!!Val::Str, vec![ValType::Str];608			], {609				Val::Str(escape_string_json(&str_).into())610			}),611			// Faster612			("std", "manifestJsonEx") => parse_args!(context, "std.manifestJsonEx", args, 2, [613				0, value, vec![];614				1, indent: [Val::Str]!!Val::Str, vec![ValType::Str];615			], {616				Val::Str(manifest_json_ex(&value, &indent)?.into())617			}),618			(ns, name) => {619				create_error_result(crate::Error::IntristicNotFound(ns.into(), name.into()))?620			}621		},622		Val::Func(f) => {623			let body = || f.evaluate(context, args, tailstrict);624			if tailstrict {625				body()?626			} else {627				push(loc, "function call", body)?628			}629		}630		v => create_error_result(crate::Error::OnlyFunctionsCanBeCalledGot(v.value_type()?))?,631	})632}633634pub fn evaluate(context: Context, expr: &LocExpr) -> Result<Val> {635	use Expr::*;636	let LocExpr(expr, loc) = expr;637	Ok(match &**expr {638		Literal(LiteralType::This) => Val::Obj(639			context640				.this()641				.clone()642				.ok_or_else(|| create_error(crate::Error::CantUseSelfOutsideOfObject))?,643		),644		Literal(LiteralType::Dollar) => Val::Obj(645			context646				.dollar()647				.clone()648				.ok_or_else(|| create_error(crate::Error::NoTopLevelObjectFound))?,649		),650		Literal(LiteralType::True) => Val::Bool(true),651		Literal(LiteralType::False) => Val::Bool(false),652		Literal(LiteralType::Null) => Val::Null,653		Parened(e) => evaluate(context, e)?,654		Str(v) => Val::Str(v.clone()),655		Num(v) => Val::new_checked_num(*v)?,656		BinaryOp(v1, o, v2) => evaluate_binary_op_special(context, &v1, *o, &v2)?,657		UnaryOp(o, v) => evaluate_unary_op(*o, &evaluate(context, v)?)?,658		Var(name) => push(loc, "var", || {659			Ok(Val::Lazy(context.binding(name.clone())?).unwrap_if_lazy()?)660		})?,661		Index(LocExpr(v, _), index) if matches!(&**v, Expr::Literal(LiteralType::Super)) => {662			let name = evaluate(context.clone(), index)?.try_cast_str("object index")?;663			context664				.super_obj()665				.clone()666				.expect("no super found")667				.get_raw(&name, &context.this().clone().expect("no this found"))?668				.expect("value not found")669		}670		Index(value, index) => {671			match (672				evaluate(context.clone(), value)?.unwrap_if_lazy()?,673				evaluate(context, index)?,674			) {675				(Val::Obj(v), Val::Str(s)) => {676					if let Some(v) = v.get(s.clone())? {677						v.unwrap_if_lazy()?678					} else if let Some(Val::Str(n)) = v.get("__intristic_namespace__".into())? {679						Val::Intristic(n, s)680					} else {681						create_error_result(crate::Error::NoSuchField(s))?682					}683				}684				(Val::Obj(_), n) => create_error_result(crate::Error::ValueIndexMustBeTypeGot(685					ValType::Obj,686					ValType::Str,687					n.value_type()?,688				))?,689690				(Val::Arr(v), Val::Num(n)) => {691					if n.fract() > f64::EPSILON {692						create_error_result(crate::Error::FractionalIndex)?693					}694					v.get(n as usize)695						.ok_or_else(|| {696							create_error(crate::Error::ArrayBoundsError(n as usize, v.len()))697						})?698						.clone()699						.unwrap_if_lazy()?700				}701				(Val::Arr(_), Val::Str(n)) => {702					create_error_result(crate::Error::AttemptedIndexAnArrayWithString(n))?703				}704				(Val::Arr(_), n) => create_error_result(crate::Error::ValueIndexMustBeTypeGot(705					ValType::Arr,706					ValType::Num,707					n.value_type()?,708				))?,709710				(Val::Str(s), Val::Num(n)) => Val::Str(711					s.chars()712						.skip(n as usize)713						.take(1)714						.collect::<String>()715						.into(),716				),717				(Val::Str(_), n) => create_error_result(crate::Error::ValueIndexMustBeTypeGot(718					ValType::Str,719					ValType::Num,720					n.value_type()?,721				))?,722723				(v, _) => create_error_result(crate::Error::CantIndexInto(v.value_type()?))?,724			}725		}726		LocalExpr(bindings, returned) => {727			let mut new_bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();728			let future_context = Context::new_future();729730			let context_creator = context_creator!(731				closure!(clone future_context, |_, _| Ok(future_context.clone().unwrap()))732			);733734			for (k, v) in bindings735				.iter()736				.map(|b| evaluate_binding(b, context_creator.clone()))737			{738				new_bindings.insert(k, v);739			}740741			let context = context742				.extend_unbound(new_bindings, None, None, None)?743				.into_future(future_context);744			evaluate(context, &returned.clone())?745		}746		Arr(items) => {747			let mut out = Vec::with_capacity(items.len());748			for item in items {749				out.push(Val::Lazy(lazy_val!(750					closure!(clone context, clone item, || {751						evaluate(context.clone(), &item)752					})753				)));754			}755			Val::Arr(Rc::new(out))756		}757		ArrComp(expr, compspecs) => Val::Arr(758			// First compspec should be forspec, so no "None" possible here759			Rc::new(evaluate_comp(context, &|ctx| evaluate(ctx, expr), compspecs)?.unwrap()),760		),761		Obj(body) => Val::Obj(evaluate_object(context, body)?),762		ObjExtend(s, t) => evaluate_add_op(763			&evaluate(context.clone(), s)?,764			&Val::Obj(evaluate_object(context, t)?),765		)?,766		Apply(value, args, tailstrict) => evaluate_apply(context, value, args, loc, *tailstrict)?,767		Function(params, body) => evaluate_method(context, params.clone(), body.clone()),768		AssertExpr(AssertStmt(value, msg), returned) => {769			let assertion_result = push(&value.1, "assertion condition", || {770				evaluate(context.clone(), &value)?771					.try_cast_bool("assertion condition should be boolean")772			})?;773			if assertion_result {774				evaluate(context, returned)?775			} else if let Some(msg) = msg {776				create_error_result(crate::Error::AssertionFailed(evaluate(context, msg)?))?777			} else {778				create_error_result(crate::Error::AssertionFailed(Val::Null))?779			}780		}781		Error(e) => create_error_result(crate::Error::RuntimeError(782			evaluate(context, e)?.try_cast_str("error text should be string")?,783		))?,784		IfElse {785			cond,786			cond_then,787			cond_else,788		} => {789			if evaluate(context.clone(), &cond.0)?790				.try_cast_bool("if condition should be boolean")?791			{792				evaluate(context, cond_then)?793			} else {794				match cond_else {795					Some(v) => evaluate(context, v)?,796					None => Val::Null,797				}798			}799		}800		Import(path) => {801			let mut tmp = loc802				.clone()803				.expect("imports can't be used without loc_data")804				.0;805			let import_location = Rc::make_mut(&mut tmp);806			import_location.pop();807			with_state(|s| s.import_file(&import_location, path))?808		}809		ImportStr(path) => {810			let mut tmp = loc811				.clone()812				.expect("imports can't be used without loc_data")813				.0;814			let import_location = Rc::make_mut(&mut tmp);815			import_location.pop();816			Val::Str(with_state(|s| s.import_file_str(&import_location, path))?)817		}818		Literal(LiteralType::Super) => return create_error_result(crate::Error::StandaloneSuper),819	})820}