git.delta.rocks / jrsonnet / refs/commits / 020afa68e92f

1use crate::{2	builtin::{3		format::{format_arr, format_obj},4		manifest::{escape_string_json, manifest_json_ex, ManifestJsonOptions, ManifestType},5	},6	context_creator, equals,7	error::Error::*,8	future_wrapper, lazy_val, parse_args, primitive_equals, push, throw, with_state, Context,9	ContextCreator, FuncDesc, LazyBinding, LazyVal, LocError, ObjMember, ObjValue, Result, Val,10	ValType,11};12use closure::closure;13use jrsonnet_parser::{14	ArgsDesc, AssertStmt, BinaryOpType, BindSpec, CompSpec, Expr, ExprLocation, FieldMember,15	ForSpecData, IfSpecData, LiteralType, LocExpr, Member, ObjBody, ParamsDesc, UnaryOpType,16	Visibility,17};18use std::{cmp::Ordering, collections::HashMap, path::PathBuf, rc::Rc};1920pub fn evaluate_binding(b: &BindSpec, context_creator: ContextCreator) -> (Rc<str>, LazyBinding) {21	let b = b.clone();22	if let Some(params) = &b.params {23		let params = params.clone();24		(25			b.name.clone(),26			LazyBinding::Bindable(Rc::new(move |this, super_obj| {27				Ok(lazy_val!(28					closure!(clone b, clone params, clone context_creator, || Ok(evaluate_method(29						context_creator.0(this.clone(), super_obj.clone())?,30						b.name.clone(),31						params.clone(),32						b.value.clone(),33					)))34				))35			})),36		)37	} else {38		(39			b.name.clone(),40			LazyBinding::Bindable(Rc::new(move |this, super_obj| {41				Ok(lazy_val!(closure!(clone context_creator, clone b, ||42						evaluate_named(43							context_creator.0(this.clone(), super_obj.clone())?,44							&b.value,45							b.name.clone()46						)47				)))48			})),49		)50	}51}5253pub fn evaluate_method(ctx: Context, name: Rc<str>, params: ParamsDesc, body: LocExpr) -> Val {54	Val::Func(Rc::new(FuncDesc {55		name,56		ctx,57		params,58		body,59	}))60}6162pub fn evaluate_field_name(63	context: Context,64	field_name: &jrsonnet_parser::FieldName,65) -> Result<Option<Rc<str>>> {66	Ok(match field_name {67		jrsonnet_parser::FieldName::Fixed(n) => Some(n.clone()),68		jrsonnet_parser::FieldName::Dyn(expr) => {69			let lazy = evaluate(context, expr)?;70			let value = lazy.unwrap_if_lazy()?;71			if matches!(value, Val::Null) {72				None73			} else {74				Some(value.try_cast_str("dynamic field name")?)75			}76		}77	})78}7980pub fn evaluate_unary_op(op: UnaryOpType, b: &Val) -> Result<Val> {81	Ok(match (op, b) {82		(o, Val::Lazy(l)) => evaluate_unary_op(o, &l.evaluate()?)?,83		(UnaryOpType::Not, Val::Bool(v)) => Val::Bool(!v),84		(UnaryOpType::Minus, Val::Num(n)) => Val::Num(-*n),85		(UnaryOpType::BitNot, Val::Num(n)) => Val::Num(!(*n as i32) as f64),86		(op, o) => throw!(UnaryOperatorDoesNotOperateOnType(op, o.value_type()?)),87	})88}8990pub(crate) fn evaluate_add_op(a: &Val, b: &Val) -> Result<Val> {91	Ok(match (a, b) {92		(Val::Str(v1), Val::Str(v2)) => Val::Str(((**v1).to_owned() + &v2).into()),9394		// Can't use generic json serialization way, because it depends on number to string concatenation (std.jsonnet:890)95		(Val::Num(n), Val::Str(o)) => Val::Str(format!("{}{}", n, o).into()),96		(Val::Str(o), Val::Num(n)) => Val::Str(format!("{}{}", o, n).into()),9798		(Val::Str(s), o) => Val::Str(format!("{}{}", s, o.clone().into_string()?).into()),99		(o, Val::Str(s)) => Val::Str(format!("{}{}", o.clone().into_string()?, s).into()),100101		(Val::Obj(v1), Val::Obj(v2)) => Val::Obj(v2.with_super(v1.clone())),102		(Val::Arr(a), Val::Arr(b)) => Val::Arr(Rc::new([&a[..], &b[..]].concat())),103		(Val::Num(v1), Val::Num(v2)) => Val::new_checked_num(v1 + v2)?,104		_ => throw!(BinaryOperatorDoesNotOperateOnValues(105			BinaryOpType::Add,106			a.value_type()?,107			b.value_type()?,108		)),109	})110}111112pub fn evaluate_binary_op_special(113	context: Context,114	a: &LocExpr,115	op: BinaryOpType,116	b: &LocExpr,117) -> Result<Val> {118	Ok(119		match (evaluate(context.clone(), &a)?.unwrap_if_lazy()?, op, b) {120			(Val::Bool(true), BinaryOpType::Or, _o) => Val::Bool(true),121			(Val::Bool(false), BinaryOpType::And, _o) => Val::Bool(false),122			(a, op, eb) => {123				evaluate_binary_op_normal(&a, op, &evaluate(context, eb)?.unwrap_if_lazy()?)?124			}125		},126	)127}128129pub fn evaluate_binary_op_normal(a: &Val, op: BinaryOpType, b: &Val) -> Result<Val> {130	Ok(match (a, op, b) {131		(a, BinaryOpType::Add, b) => evaluate_add_op(a, b)?,132133		(Val::Str(v1), BinaryOpType::Mul, Val::Num(v2)) => Val::Str(v1.repeat(*v2 as usize).into()),134135		// Bool X Bool136		(Val::Bool(a), BinaryOpType::And, Val::Bool(b)) => Val::Bool(*a && *b),137		(Val::Bool(a), BinaryOpType::Or, Val::Bool(b)) => Val::Bool(*a || *b),138139		// Str X Str140		(Val::Str(v1), BinaryOpType::Lt, Val::Str(v2)) => Val::Bool(v1 < v2),141		(Val::Str(v1), BinaryOpType::Gt, Val::Str(v2)) => Val::Bool(v1 > v2),142		(Val::Str(v1), BinaryOpType::Lte, Val::Str(v2)) => Val::Bool(v1 <= v2),143		(Val::Str(v1), BinaryOpType::Gte, Val::Str(v2)) => Val::Bool(v1 >= v2),144145		// Num X Num146		(Val::Num(v1), BinaryOpType::Mul, Val::Num(v2)) => Val::new_checked_num(v1 * v2)?,147		(Val::Num(v1), BinaryOpType::Div, Val::Num(v2)) => {148			if *v2 <= f64::EPSILON {149				throw!(DivisionByZero)150			}151			Val::new_checked_num(v1 / v2)?152		}153154		(Val::Num(v1), BinaryOpType::Sub, Val::Num(v2)) => Val::new_checked_num(v1 - v2)?,155156		(Val::Num(v1), BinaryOpType::Lt, Val::Num(v2)) => Val::Bool(v1 < v2),157		(Val::Num(v1), BinaryOpType::Gt, Val::Num(v2)) => Val::Bool(v1 > v2),158		(Val::Num(v1), BinaryOpType::Lte, Val::Num(v2)) => Val::Bool(v1 <= v2),159		(Val::Num(v1), BinaryOpType::Gte, Val::Num(v2)) => Val::Bool(v1 >= v2),160161		(Val::Num(v1), BinaryOpType::BitAnd, Val::Num(v2)) => {162			Val::Num(((*v1 as i32) & (*v2 as i32)) as f64)163		}164		(Val::Num(v1), BinaryOpType::BitOr, Val::Num(v2)) => {165			Val::Num(((*v1 as i32) | (*v2 as i32)) as f64)166		}167		(Val::Num(v1), BinaryOpType::BitXor, Val::Num(v2)) => {168			Val::Num(((*v1 as i32) ^ (*v2 as i32)) as f64)169		}170		(Val::Num(v1), BinaryOpType::Lhs, Val::Num(v2)) => {171			if *v2 < 0.0 {172				throw!(RuntimeError("shift by negative exponent".into()))173			}174			Val::Num(((*v1 as i32) << (*v2 as i32)) as f64)175		}176		(Val::Num(v1), BinaryOpType::Rhs, Val::Num(v2)) => {177			if *v2 < 0.0 {178				throw!(RuntimeError("shift by negative exponent".into()))179			}180			Val::Num(((*v1 as i32) >> (*v2 as i32)) as f64)181		}182183		_ => throw!(BinaryOperatorDoesNotOperateOnValues(184			op,185			a.value_type()?,186			b.value_type()?,187		)),188	})189}190191future_wrapper!(HashMap<Rc<str>, LazyBinding>, FutureNewBindings);192future_wrapper!(ObjValue, FutureObjValue);193194pub fn evaluate_comp<T>(195	context: Context,196	value: &impl Fn(Context) -> Result<T>,197	specs: &[CompSpec],198) -> Result<Option<Vec<T>>> {199	Ok(match specs.get(0) {200		None => Some(vec![value(context)?]),201		Some(CompSpec::IfSpec(IfSpecData(cond))) => {202			if evaluate(context.clone(), &cond)?.try_cast_bool("if spec")? {203				evaluate_comp(context, value, &specs[1..])?204			} else {205				None206			}207		}208		Some(CompSpec::ForSpec(ForSpecData(var, expr))) => {209			match evaluate(context.clone(), &expr)?.unwrap_if_lazy()? {210				Val::Arr(list) => {211					let mut out = Vec::new();212					for item in list.iter() {213						let item = item.unwrap_if_lazy()?;214						out.push(evaluate_comp(215							context.clone().with_var(var.clone(), item.clone()),216							value,217							&specs[1..],218						)?);219					}220					Some(out.into_iter().flatten().flatten().collect())221				}222				_ => throw!(InComprehensionCanOnlyIterateOverArray),223			}224		}225	})226}227228pub fn evaluate_member_list_object(context: Context, members: &[Member]) -> Result<ObjValue> {229	let new_bindings = FutureNewBindings::new();230	let future_this = FutureObjValue::new();231	let context_creator = context_creator!(232		closure!(clone context, clone new_bindings, |this: Option<ObjValue>, super_obj: Option<ObjValue>| {233			Ok(context.clone().extend_unbound(234				new_bindings.clone().unwrap(),235				context.dollar().clone().or_else(||this.clone()),236				Some(this.unwrap()),237				super_obj238			)?)239		})240	);241	{242		let mut bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();243		for (n, b) in members244			.iter()245			.filter_map(|m| match m {246				Member::BindStmt(b) => Some(b.clone()),247				_ => None,248			})249			.map(|b| evaluate_binding(&b, context_creator.clone()))250		{251			bindings.insert(n, b);252		}253		new_bindings.fill(bindings);254	}255256	let mut new_members = HashMap::new();257	for member in members.iter() {258		match member {259			Member::Field(FieldMember {260				name,261				plus,262				params: None,263				visibility,264				value,265			}) => {266				let name = evaluate_field_name(context.clone(), &name)?;267				if name.is_none() {268					continue;269				}270				let name = name.unwrap();271				new_members.insert(272					name.clone(),273					ObjMember {274						add: *plus,275						visibility: *visibility,276						invoke: LazyBinding::Bindable(Rc::new(277							closure!(clone name, clone value, clone context_creator, |this, super_obj| {278								Ok(LazyVal::new_resolved(evaluate(279									context_creator.0(this, super_obj)?,280									&value,281								)?))282							}),283						)),284						location: value.1.clone(),285					},286				);287			}288			Member::Field(FieldMember {289				name,290				params: Some(params),291				value,292				..293			}) => {294				let name = evaluate_field_name(context.clone(), &name)?;295				if name.is_none() {296					continue;297				}298				let name = name.unwrap();299				new_members.insert(300					name.clone(),301					ObjMember {302						add: false,303						visibility: Visibility::Hidden,304						invoke: LazyBinding::Bindable(Rc::new(305							closure!(clone value, clone context_creator, clone params, clone name, |this, super_obj| {306								// TODO: Assert307								Ok(LazyVal::new_resolved(evaluate_method(308									context_creator.0(this, super_obj)?,309									name.clone(),310									params.clone(),311									value.clone(),312								)))313							}),314						)),315						location: value.1.clone(),316					},317				);318			}319			Member::BindStmt(_) => {}320			Member::AssertStmt(_) => {}321		}322	}323	Ok(future_this.fill(ObjValue::new(None, Rc::new(new_members))))324}325326pub fn evaluate_object(context: Context, object: &ObjBody) -> Result<ObjValue> {327	Ok(match object {328		ObjBody::MemberList(members) => evaluate_member_list_object(context, &members)?,329		ObjBody::ObjComp(obj) => {330			let future_this = FutureObjValue::new();331			let mut new_members = HashMap::new();332			for (k, v) in evaluate_comp(333				context.clone(),334				&|ctx| {335					let new_bindings = FutureNewBindings::new();336					let context_creator = context_creator!(337						closure!(clone context, clone new_bindings, |this: Option<ObjValue>, super_obj: Option<ObjValue>| {338							Ok(context.clone().extend_unbound(339								new_bindings.clone().unwrap(),340								context.dollar().clone().or_else(||this.clone()),341								None,342								super_obj343							)?)344						})345					);346					let mut bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();347					for (n, b) in obj348						.pre_locals349						.iter()350						.chain(obj.post_locals.iter())351						.map(|b| evaluate_binding(b, context_creator.clone()))352					{353						bindings.insert(n, b);354					}355					let bindings = new_bindings.fill(bindings);356					let ctx = ctx.extend_unbound(bindings, None, None, None)?;357					let key = evaluate(ctx.clone(), &obj.key)?;358					let value = LazyBinding::Bindable(Rc::new(359						closure!(clone ctx, clone obj.value, |this, _super_obj| {360							Ok(LazyVal::new_resolved(evaluate(ctx.clone().extend(HashMap::new(), None, this, None), &value)?))361						}),362					));363364					Ok((key, value))365				},366				&obj.compspecs,367			)?368			.unwrap()369			{370				match k {371					Val::Null => {}372					Val::Str(n) => {373						new_members.insert(374							n,375							ObjMember {376								add: false,377								visibility: Visibility::Normal,378								invoke: v,379								location: obj.value.1.clone(),380							},381						);382					}383					v => throw!(FieldMustBeStringGot(v.value_type()?)),384				}385			}386387			future_this.fill(ObjValue::new(None, Rc::new(new_members)))388		}389	})390}391392/// Extracts code block and disables inlining for them393/// Fixes WASM to java bytecode compilation failing because of very large method394#[cfg(feature = "unstable")]395macro_rules! noinline {396	($e:expr) => {397		(#![inline(never)] move || $e)()398	};399}400#[cfg(not(feature = "unstable"))]401macro_rules! noinline {402	($e:expr) => {403		(move || $e)()404	};405}406407pub fn evaluate_apply(408	context: Context,409	value: &LocExpr,410	args: &ArgsDesc,411	loc: &Option<ExprLocation>,412	tailstrict: bool,413) -> Result<Val> {414	let lazy = evaluate(context.clone(), value)?;415	let value = lazy.unwrap_if_lazy()?;416	Ok(match value {417		Val::Intristic(ns, name) => push(418			loc,419			|| format!("intristic <{}.{}> call", ns, name),420			|| {421				Ok(match (&ns as &str, &name as &str) {422					// arr/string/function423					("std", "length") => parse_args!(context, "std.length", args, 1, [424						0, x: [Val::Str|Val::Arr|Val::Obj], vec![ValType::Str, ValType::Arr, ValType::Obj];425					], {426						Ok(match x {427							Val::Str(n) => Val::Num(n.chars().count() as f64),428							Val::Arr(i) => Val::Num(i.len() as f64),429							Val::Obj(o) => Val::Num(430								o.fields_visibility()431									.into_iter()432									.filter(|(_k, v)| *v)433									.count() as f64,434							),435							_ => unreachable!(),436						})437					})?,438					// any439					("std", "type") => parse_args!(context, "std.type", args, 1, [440						0, x, vec![];441					], {442						Ok(Val::Str(x.value_type()?.name().into()))443					})?,444					// length, idx=>any445					("std", "makeArray") => {446						noinline!(parse_args!(context, "std.makeArray", args, 2, [447							0, sz: [Val::Num]!!Val::Num, vec![ValType::Num];448							1, func: [Val::Func]!!Val::Func, vec![ValType::Func];449						], {450							if sz < 0.0 {451								throw!(RuntimeError(format!("makeArray requires size >= 0, got {}", sz).into()));452							}453							let mut out = Vec::with_capacity(sz as usize);454							for i in 0..sz as usize {455								out.push(func.evaluate_values(456									Context::new(),457									&[Val::Num(i as f64)]458								)?)459							}460							Ok(Val::Arr(Rc::new(out)))461						}))?462					}463					// string464					("std", "codepoint") => parse_args!(context, "std.codepoint", args, 1, [465						0, str: [Val::Str]!!Val::Str, vec![ValType::Str];466					], {467						assert!(468							str.chars().count() == 1,469							"std.codepoint should receive single char string"470						);471						Ok(Val::Num(str.chars().take(1).next().unwrap() as u32 as f64))472					})?,473					// object, includeHidden474					("std", "objectFieldsEx") => {475						noinline!(parse_args!(context, "std.objectFieldsEx",args, 2, [476							0, obj: [Val::Obj]!!Val::Obj, vec![ValType::Obj];477							1, inc_hidden: [Val::Bool]!!Val::Bool, vec![ValType::Bool];478						], {479							let mut out = obj.fields_visibility()480								.into_iter()481								.filter(|(_k, v)| *v || inc_hidden)482								.map(|(k, _v)|k)483								.collect::<Vec<_>>();484							out.sort();485							Ok(Val::Arr(Rc::new(out.into_iter().map(Val::Str).collect())))486						}))?487					}488					// object, field, includeHidden489					("std", "objectHasEx") => parse_args!(context, "std.objectHasEx", args, 3, [490						0, obj: [Val::Obj]!!Val::Obj, vec![ValType::Obj];491						1, f: [Val::Str]!!Val::Str, vec![ValType::Str];492						2, inc_hidden: [Val::Bool]!!Val::Bool, vec![ValType::Bool];493					], {494						Ok(Val::Bool(495							obj.fields_visibility()496								.into_iter()497								.filter(|(_k, v)| *v || inc_hidden)498								.any(|(k, _v)| *k == *f),499						))500					})?,501					("std", "primitiveEquals") => {502						parse_args!(context, "std.primitiveEquals", args, 2, [503							0, a, vec![];504							1, b, vec![];505						], {506							Ok(Val::Bool(primitive_equals(&a, &b)?))507						})?508					}509					// faster510					("std", "equals") => parse_args!(context, "std.equals", args, 2, [511						0, a, vec![];512						1, b, vec![];513					], {514						Ok(Val::Bool(equals(&a, &b)?))515					})?,516					("std", "modulo") => parse_args!(context, "std.modulo", args, 2, [517						0, a: [Val::Num]!!Val::Num, vec![ValType::Num];518						1, b: [Val::Num]!!Val::Num, vec![ValType::Num];519					], {520						Ok(Val::Num(a % b))521					})?,522					("std", "floor") => parse_args!(context, "std.floor", args, 1, [523						0, x: [Val::Num]!!Val::Num, vec![ValType::Num];524					], {525						Ok(Val::Num(x.floor()))526					})?,527					("std", "log") => parse_args!(context, "std.log", args, 2, [528						0, n: [Val::Num]!!Val::Num, vec![ValType::Num];529					], {530						Ok(Val::Num(n.ln()))531					})?,532					("std", "trace") => parse_args!(context, "std.trace", args, 2, [533						0, str: [Val::Str]!!Val::Str, vec![ValType::Str];534						1, rest, vec![];535					], {536						eprint!("TRACE:");537						if let Some(loc) = loc {538							with_state(|s|{539								let locs = s.map_source_locations(&loc.0, &[loc.1]);540								eprint!(" {}:{}", loc.0.file_name().unwrap().to_str().unwrap(), locs[0].line);541							});542						}543						eprintln!(" {}", str);544						Ok(rest)545					})?,546					("std", "pow") => parse_args!(context, "std.modulo", args, 2, [547						0, x: [Val::Num]!!Val::Num, vec![ValType::Num];548						1, n: [Val::Num]!!Val::Num, vec![ValType::Num];549					], {550						Ok(Val::Num(x.powf(n)))551					})?,552					("std", "extVar") => parse_args!(context, "std.extVar", args, 2, [553						0, x: [Val::Str]!!Val::Str, vec![ValType::Str];554					], {555						Ok(with_state(|s| s.settings().ext_vars.get(&x).cloned()).ok_or_else(556							|| UndefinedExternalVariable(x),557						)?)558					})?,559					("std", "filter") => noinline!(parse_args!(context, "std.filter", args, 2, [560						0, func: [Val::Func]!!Val::Func, vec![ValType::Func];561						1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];562					], {563						Ok(Val::Arr(Rc::new(564							arr.iter()565								.cloned()566								.filter(|e| {567									func568										.evaluate_values(context.clone(), &[e.clone()])569										.unwrap()570										.try_cast_bool("filter predicate")571										.unwrap()572								})573								.collect(),574						)))575					}))?,576					// faster577					("std", "foldl") => noinline!(parse_args!(context, "std.foldl", args, 3, [578						0, func: [Val::Func]!!Val::Func, vec![ValType::Func];579						1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];580						2, init, vec![];581					], {582						let mut acc = init;583						for i in arr.iter().cloned() {584							acc = func.evaluate_values(context.clone(), &[acc, i])?;585						}586						Ok(acc)587					}))?,588					// faster589					("std", "foldr") => noinline!(parse_args!(context, "std.foldr", args, 3, [590						0, func: [Val::Func]!!Val::Func, vec![ValType::Func];591						1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];592						2, init, vec![];593					], {594						let mut acc = init;595						for i in arr.iter().rev().cloned() {596							acc = func.evaluate_values(context.clone(), &[acc, i])?;597						}598						Ok(acc)599					}))?,600					// faster601					#[allow(non_snake_case)]602					("std", "sortImpl") => noinline!(parse_args!(context, "std.sort", args, 2, [603						0, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];604						1, keyF: [Val::Func]!!Val::Func, vec![ValType::Func];605					], {606						if arr.len() <= 1 {607							return Ok(Val::Arr(arr))608						}609						let mut new_arr = arr.iter().cloned().collect::<Vec<_>>();610						match keyF.evaluate_values(context.clone(), &[new_arr[0].clone()])? {611							Val::Str(_) => {612								let mut err = None;613								new_arr.sort_by_cached_key(|k| {614									match keyF.evaluate_values(context.clone(), &[k.clone()]) {615										Ok(Val::Str(v)) => v,616										Ok(_) => {617											err = Some(LocError::new(RuntimeError("types of all array elements should equal".into())));618											"".into()619										}620										Err(e) => {621											err = Some(e);622											"".into()623										}624									}625								});626								if let Some(e) = err {627									return Err(e);628								}629							},630							Val::Num(_) => {631								let mut err = None;632								new_arr.sort_unstable_by(|a, b| {633									match (keyF.evaluate_values(context.clone(), &[a.clone()]), keyF.evaluate_values(context.clone(), &[b.clone()])) {634										(Ok(Val::Num(a)), Ok(Val::Num(b))) => a.partial_cmp(&b).unwrap(),635										(Ok(_a), Ok(_b)) => {636											err = Some(RuntimeError("types of all array elements should equal".into()).into());637											Ordering::Equal638										}639										(Err(e), _) | (_, Err(e)) => {640											err = Some(e);641											Ordering::Equal642										}643									}644								});645								if let Some(e) = err {646									return Err(e);647								}648							},649							_ => throw!(RuntimeError("keys should be number or string".into()))650						}651						Ok(Val::Arr(Rc::new(new_arr)))652					}))?,653					// faster654					("std", "format") => parse_args!(context, "std.format", args, 2, [655						0, str: [Val::Str]!!Val::Str, vec![ValType::Str];656						1, vals, vec![]657					], {658						push(&Some(ExprLocation(Rc::from(PathBuf::from("std.jsonnet")), 0, 0)), ||format!("std.format of {}", str), ||{659							Ok(match vals {660								Val::Arr(vals) => Val::Str(format_arr(&str, &vals)?.into()),661								Val::Obj(obj) => Val::Str(format_obj(&str, &obj)?.into()),662								o => Val::Str(format_arr(&str, &[o])?.into()),663							})664						})665					})?,666					// faster667					("std", "range") => parse_args!(context, "std.range", args, 2, [668						0, from: [Val::Num]!!Val::Num, vec![ValType::Num];669						1, to: [Val::Num]!!Val::Num, vec![ValType::Num];670					], {671						let mut out = Vec::with_capacity((1+to as usize-from as usize).max(0));672						for i in from as usize..=to as usize {673							out.push(Val::Num(i as f64));674						}675						Ok(Val::Arr(Rc::new(out)))676					})?,677					("std", "char") => parse_args!(context, "std.char", args, 1, [678						0, n: [Val::Num]!!Val::Num, vec![ValType::Num];679					], {680						let mut out = String::new();681						out.push(std::char::from_u32(n as u32).ok_or_else(||682							InvalidUnicodeCodepointGot(n as u32)683						)?);684						Ok(Val::Str(out.into()))685					})?,686					("std", "encodeUTF8") => parse_args!(context, "std.encodeUtf8", args, 1, [687						0, str: [Val::Str]!!Val::Str, vec![ValType::Str];688					], {689						Ok(Val::Arr(Rc::new(str.bytes().map(|b| Val::Num(b as f64)).collect())))690					})?,691					("std", "md5") => noinline!(parse_args!(context, "std.md5", args, 1, [692						0, str: [Val::Str]!!Val::Str, vec![ValType::Str];693					], {694						Ok(Val::Str(format!("{:x}", md5::compute(&str.as_bytes())).into()))695					}))?,696					// faster697					("std", "base64") => parse_args!(context, "std.base64", args, 1, [698						0, input: [Val::Str | Val::Arr], vec![ValType::Arr, ValType::Str];699					], {700						Ok(Val::Str(match input {701							Val::Str(s) => {702								base64::encode(s.bytes().collect::<Vec<_>>()).into()703							},704							Val::Arr(a) => {705								base64::encode(a.iter().map(|v| {706									Ok(v.clone().try_cast_num("base64 array")? as u8)707								}).collect::<Result<Vec<_>>>()?).into()708							},709							_ => unreachable!()710						}))711					})?,712					// faster713					("std", "join") => noinline!(parse_args!(context, "std.join", args, 2, [714						0, sep: [Val::Str|Val::Arr], vec![ValType::Str, ValType::Arr];715						1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];716					], {717						Ok(match sep {718							Val::Arr(joiner_items) => {719								let mut out = Vec::new();720721								let mut first = true;722								for item in arr.iter().cloned() {723									if let Val::Arr(items) = item.unwrap_if_lazy()? {724										if !first {725											out.reserve(joiner_items.len());726											out.extend(joiner_items.iter().cloned());727										}728										first = false;729										out.reserve(items.len());730										out.extend(items.iter().cloned());731									} else {732										throw!(RuntimeError("in std.join all items should be arrays".into()));733									}734								}735736								Val::Arr(Rc::new(out))737							},738							Val::Str(sep) => {739								let mut out = String::new();740741								let mut first = true;742								for item in arr.iter().cloned() {743									if let Val::Str(item) = item.unwrap_if_lazy()? {744										if !first {745											out += &sep;746										}747										first = false;748										out += &item;749									} else {750										throw!(RuntimeError("in std.join all items should be strings".into()));751									}752								}753754								Val::Str(out.into())755							},756							_ => unreachable!()757						})758					}))?,759					// Faster760					("std", "escapeStringJson") => {761						parse_args!(context, "std.escapeStringJson", args, 1, [762							0, str_: [Val::Str]!!Val::Str, vec![ValType::Str];763						], {764							Ok(Val::Str(escape_string_json(&str_).into()))765						})?766					}767					// Faster768					("std", "manifestJsonEx") => {769						parse_args!(context, "std.manifestJsonEx", args, 2, [770							0, value, vec![];771							1, indent: [Val::Str]!!Val::Str, vec![ValType::Str];772						], {773							Ok(Val::Str(manifest_json_ex(&value, &ManifestJsonOptions {774								padding: &indent,775								mtype: ManifestType::Std,776							})?.into()))777						})?778					}779					(ns, name) => throw!(IntristicNotFound(ns.into(), name.into())),780				})781			},782		)?,783		Val::Func(f) => {784			let body = || f.evaluate(context, args, tailstrict);785			if tailstrict {786				body()?787			} else {788				push(loc, || format!("function <{}> call", f.name), body)?789			}790		}791		v => throw!(OnlyFunctionsCanBeCalledGot(v.value_type()?)),792	})793}794795pub fn evaluate_named(context: Context, lexpr: &LocExpr, name: Rc<str>) -> Result<Val> {796	use Expr::*;797	let LocExpr(expr, _loc) = lexpr;798	Ok(match &**expr {799		Function(params, body) => evaluate_method(context, name, params.clone(), body.clone()),800		_ => evaluate(context, lexpr)?,801	})802}803804pub fn evaluate(context: Context, expr: &LocExpr) -> Result<Val> {805	use Expr::*;806	let LocExpr(expr, loc) = expr;807	Ok(match &**expr {808		Literal(LiteralType::This) => Val::Obj(809			context810				.this()811				.clone()812				.ok_or_else(|| CantUseSelfOutsideOfObject)?,813		),814		Literal(LiteralType::Dollar) => Val::Obj(815			context816				.dollar()817				.clone()818				.ok_or_else(|| NoTopLevelObjectFound)?,819		),820		Literal(LiteralType::True) => Val::Bool(true),821		Literal(LiteralType::False) => Val::Bool(false),822		Literal(LiteralType::Null) => Val::Null,823		Parened(e) => evaluate(context, e)?,824		Str(v) => Val::Str(v.clone()),825		Num(v) => Val::new_checked_num(*v)?,826		BinaryOp(v1, o, v2) => evaluate_binary_op_special(context, &v1, *o, &v2)?,827		UnaryOp(o, v) => evaluate_unary_op(*o, &evaluate(context, v)?)?,828		Var(name) => push(829			loc,830			|| format!("variable <{}>", name),831			|| Ok(Val::Lazy(context.binding(name.clone())?).unwrap_if_lazy()?),832		)?,833		Index(LocExpr(v, _), index) if matches!(&**v, Expr::Literal(LiteralType::Super)) => {834			let name = evaluate(context.clone(), index)?.try_cast_str("object index")?;835			context836				.super_obj()837				.clone()838				.expect("no super found")839				.get_raw(name, &context.this().clone().expect("no this found"))?840				.expect("value not found")841		}842		Index(value, index) => {843			match (844				evaluate(context.clone(), value)?.unwrap_if_lazy()?,845				evaluate(context, index)?,846			) {847				(Val::Obj(v), Val::Str(s)) => {848					let sn = s.clone();849					push(850						&loc,851						|| format!("field <{}> access", sn),852						|| {853							if let Some(v) = v.get(s.clone())? {854								Ok(v.unwrap_if_lazy()?)855							} else if let Some(Val::Str(n)) =856								v.get("__intristic_namespace__".into())?857							{858								Ok(Val::Intristic(n, s))859							} else {860								throw!(NoSuchField(s))861							}862						},863					)?864				}865				(Val::Obj(_), n) => throw!(ValueIndexMustBeTypeGot(866					ValType::Obj,867					ValType::Str,868					n.value_type()?,869				)),870871				(Val::Arr(v), Val::Num(n)) => {872					if n.fract() > f64::EPSILON {873						throw!(FractionalIndex)874					}875					v.get(n as usize)876						.ok_or_else(|| ArrayBoundsError(n as usize, v.len()))?877						.clone()878						.unwrap_if_lazy()?879				}880				(Val::Arr(_), Val::Str(n)) => throw!(AttemptedIndexAnArrayWithString(n)),881				(Val::Arr(_), n) => throw!(ValueIndexMustBeTypeGot(882					ValType::Arr,883					ValType::Num,884					n.value_type()?,885				)),886887				(Val::Str(s), Val::Num(n)) => Val::Str(888					s.chars()889						.skip(n as usize)890						.take(1)891						.collect::<String>()892						.into(),893				),894				(Val::Str(_), n) => throw!(ValueIndexMustBeTypeGot(895					ValType::Str,896					ValType::Num,897					n.value_type()?,898				)),899900				(v, _) => throw!(CantIndexInto(v.value_type()?)),901			}902		}903		LocalExpr(bindings, returned) => {904			let mut new_bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();905			let future_context = Context::new_future();906907			let context_creator = context_creator!(908				closure!(clone future_context, |_, _| Ok(future_context.clone().unwrap()))909			);910911			for (k, v) in bindings912				.iter()913				.map(|b| evaluate_binding(b, context_creator.clone()))914			{915				new_bindings.insert(k, v);916			}917918			let context = context919				.extend_unbound(new_bindings, None, None, None)?920				.into_future(future_context);921			evaluate(context, &returned.clone())?922		}923		Arr(items) => {924			let mut out = Vec::with_capacity(items.len());925			for item in items {926				out.push(Val::Lazy(lazy_val!(927					closure!(clone context, clone item, || {928						evaluate(context.clone(), &item)929					})930				)));931			}932			Val::Arr(Rc::new(out))933		}934		ArrComp(expr, compspecs) => Val::Arr(935			// First compspec should be forspec, so no "None" possible here936			Rc::new(evaluate_comp(context, &|ctx| evaluate(ctx, expr), compspecs)?.unwrap()),937		),938		Obj(body) => Val::Obj(evaluate_object(context, body)?),939		ObjExtend(s, t) => evaluate_add_op(940			&evaluate(context.clone(), s)?,941			&Val::Obj(evaluate_object(context, t)?),942		)?,943		Apply(value, args, tailstrict) => evaluate_apply(context, value, args, loc, *tailstrict)?,944		Function(params, body) => {945			evaluate_method(context, "anonymous".into(), params.clone(), body.clone())946		}947		AssertExpr(AssertStmt(value, msg), returned) => {948			let assertion_result = push(949				&value.1,950				|| "assertion condition".to_owned(),951				|| {952					evaluate(context.clone(), &value)?953						.try_cast_bool("assertion condition should be boolean")954				},955			)?;956			if assertion_result {957				evaluate(context, returned)?958			} else if let Some(msg) = msg {959				throw!(AssertionFailed(evaluate(context, msg)?));960			} else {961				throw!(AssertionFailed(Val::Null));962			}963		}964		ErrorStmt(e) => push(965			&loc,966			|| "error statement".to_owned(),967			|| {968				throw!(RuntimeError(969					evaluate(context, e)?.try_cast_str("error text should be string")?,970				))971			},972		)?,973		IfElse {974			cond,975			cond_then,976			cond_else,977		} => {978			if evaluate(context.clone(), &cond.0)?979				.try_cast_bool("if condition should be boolean")?980			{981				evaluate(context, cond_then)?982			} else {983				match cond_else {984					Some(v) => evaluate(context, v)?,985					None => Val::Null,986				}987			}988		}989		Import(path) => {990			let mut tmp = loc991				.clone()992				.expect("imports can't be used without loc_data")993				.0;994			let import_location = Rc::make_mut(&mut tmp);995			import_location.pop();996			push(997				loc,998				|| format!("import {:?}", path),999				|| with_state(|s| s.import_file(&import_location, path)),1000			)?1001		}1002		ImportStr(path) => {1003			let mut tmp = loc1004				.clone()1005				.expect("imports can't be used without loc_data")1006				.0;1007			let import_location = Rc::make_mut(&mut tmp);1008			import_location.pop();1009			Val::Str(with_state(|s| s.import_file_str(&import_location, path))?)1010		}1011		Literal(LiteralType::Super) => throw!(StandaloneSuper),1012	})1013}