git.delta.rocks / jrsonnet / refs/commits / 84f648e78329

1use crate::{2	builtin::format::{format_arr, format_obj},3	context_creator, create_error, create_error_result, equals, escape_string_json, future_wrapper,4	lazy_val, manifest_json_ex, parse_args, primitive_equals, push, with_state, Context,5	ContextCreator, Error, FuncDesc, LazyBinding, LazyVal, ObjMember, ObjValue, Result, Val,6	ValType,7};8use closure::closure;9use jrsonnet_parser::{10	ArgsDesc, AssertStmt, BinaryOpType, BindSpec, CompSpec, Expr, ExprLocation, FieldMember,11	ForSpecData, IfSpecData, LiteralType, LocExpr, Member, ObjBody, ParamsDesc, UnaryOpType,12	Visibility,13};14use std::{cmp::Ordering, collections::HashMap, rc::Rc};1516pub fn evaluate_binding(b: &BindSpec, context_creator: ContextCreator) -> (Rc<str>, LazyBinding) {17	let b = b.clone();18	if let Some(params) = &b.params {19		let params = params.clone();20		(21			b.name.clone(),22			LazyBinding::Bindable(Rc::new(move |this, super_obj| {23				Ok(lazy_val!(24					closure!(clone b, clone params, clone context_creator, || Ok(evaluate_method(25						context_creator.0(this.clone(), super_obj.clone())?,26						b.name.clone(),27						params.clone(),28						b.value.clone(),29					)))30				))31			})),32		)33	} else {34		(35			b.name.clone(),36			LazyBinding::Bindable(Rc::new(move |this, super_obj| {37				Ok(lazy_val!(closure!(clone context_creator, clone b, ||38						evaluate_named(39							context_creator.0(this.clone(), super_obj.clone())?,40							&b.value,41							b.name.clone()42						)43				)))44			})),45		)46	}47}4849pub fn evaluate_method(ctx: Context, name: Rc<str>, params: ParamsDesc, body: LocExpr) -> Val {50	Val::Func(Rc::new(FuncDesc {51		name,52		ctx,53		params,54		body,55	}))56}5758pub fn evaluate_field_name(59	context: Context,60	field_name: &jrsonnet_parser::FieldName,61) -> Result<Option<Rc<str>>> {62	Ok(match field_name {63		jrsonnet_parser::FieldName::Fixed(n) => Some(n.clone()),64		jrsonnet_parser::FieldName::Dyn(expr) => {65			let lazy = evaluate(context, expr)?;66			let value = lazy.unwrap_if_lazy()?;67			if matches!(value, Val::Null) {68				None69			} else {70				Some(value.try_cast_str("dynamic field name")?)71			}72		}73	})74}7576pub fn evaluate_unary_op(op: UnaryOpType, b: &Val) -> Result<Val> {77	Ok(match (op, b) {78		(o, Val::Lazy(l)) => evaluate_unary_op(o, &l.evaluate()?)?,79		(UnaryOpType::Not, Val::Bool(v)) => Val::Bool(!v),80		(UnaryOpType::Minus, Val::Num(n)) => Val::Num(-*n),81		(UnaryOpType::BitNot, Val::Num(n)) => Val::Num(!(*n as i32) as f64),82		(op, o) => create_error_result(Error::UnaryOperatorDoesNotOperateOnType(83			op,84			o.value_type()?,85		))?,86	})87}8889pub(crate) fn evaluate_add_op(a: &Val, b: &Val) -> Result<Val> {90	Ok(match (a, b) {91		(Val::Str(v1), Val::Str(v2)) => Val::Str(((**v1).to_owned() + &v2).into()),9293		// Can't use generic json serialization way, because it depends on number to string concatenation (std.jsonnet:890)94		(Val::Num(n), Val::Str(o)) => Val::Str(format!("{}{}", n, o).into()),95		(Val::Str(o), Val::Num(n)) => Val::Str(format!("{}{}", o, n).into()),9697		(Val::Str(s), o) => Val::Str(format!("{}{}", s, o.clone().into_json(0)?).into()),98		(o, Val::Str(s)) => Val::Str(format!("{}{}", o.clone().into_json(0)?, s).into()),99100		(Val::Obj(v1), Val::Obj(v2)) => Val::Obj(v2.with_super(v1.clone())),101		(Val::Arr(a), Val::Arr(b)) => Val::Arr(Rc::new([&a[..], &b[..]].concat())),102		(Val::Num(v1), Val::Num(v2)) => Val::new_checked_num(v1 + v2)?,103		_ => create_error_result(Error::BinaryOperatorDoesNotOperateOnValues(104			BinaryOpType::Add,105			a.value_type()?,106			b.value_type()?,107		))?,108	})109}110111pub fn evaluate_binary_op_special(112	context: Context,113	a: &LocExpr,114	op: BinaryOpType,115	b: &LocExpr,116) -> Result<Val> {117	Ok(118		match (evaluate(context.clone(), &a)?.unwrap_if_lazy()?, op, b) {119			(Val::Bool(true), BinaryOpType::Or, _o) => Val::Bool(true),120			(Val::Bool(false), BinaryOpType::And, _o) => Val::Bool(false),121			(a, op, eb) => {122				evaluate_binary_op_normal(&a, op, &evaluate(context, eb)?.unwrap_if_lazy()?)?123			}124		},125	)126}127128pub fn evaluate_binary_op_normal(a: &Val, op: BinaryOpType, b: &Val) -> Result<Val> {129	Ok(match (a, op, b) {130		(a, BinaryOpType::Add, b) => evaluate_add_op(a, b)?,131132		(Val::Str(v1), BinaryOpType::Mul, Val::Num(v2)) => Val::Str(v1.repeat(*v2 as usize).into()),133134		// Bool X Bool135		(Val::Bool(a), BinaryOpType::And, Val::Bool(b)) => Val::Bool(*a && *b),136		(Val::Bool(a), BinaryOpType::Or, Val::Bool(b)) => Val::Bool(*a || *b),137138		// Str X Str139		(Val::Str(v1), BinaryOpType::Lt, Val::Str(v2)) => Val::Bool(v1 < v2),140		(Val::Str(v1), BinaryOpType::Gt, Val::Str(v2)) => Val::Bool(v1 > v2),141		(Val::Str(v1), BinaryOpType::Lte, Val::Str(v2)) => Val::Bool(v1 <= v2),142		(Val::Str(v1), BinaryOpType::Gte, Val::Str(v2)) => Val::Bool(v1 >= v2),143144		// Num X Num145		(Val::Num(v1), BinaryOpType::Mul, Val::Num(v2)) => Val::new_checked_num(v1 * v2)?,146		(Val::Num(v1), BinaryOpType::Div, Val::Num(v2)) => {147			if *v2 <= f64::EPSILON {148				create_error_result(crate::Error::DivisionByZero)?149			}150			Val::new_checked_num(v1 / v2)?151		}152153		(Val::Num(v1), BinaryOpType::Sub, Val::Num(v2)) => Val::new_checked_num(v1 - v2)?,154155		(Val::Num(v1), BinaryOpType::Lt, Val::Num(v2)) => Val::Bool(v1 < v2),156		(Val::Num(v1), BinaryOpType::Gt, Val::Num(v2)) => Val::Bool(v1 > v2),157		(Val::Num(v1), BinaryOpType::Lte, Val::Num(v2)) => Val::Bool(v1 <= v2),158		(Val::Num(v1), BinaryOpType::Gte, Val::Num(v2)) => Val::Bool(v1 >= v2),159160		(Val::Num(v1), BinaryOpType::BitAnd, Val::Num(v2)) => {161			Val::Num(((*v1 as i32) & (*v2 as i32)) as f64)162		}163		(Val::Num(v1), BinaryOpType::BitOr, Val::Num(v2)) => {164			Val::Num(((*v1 as i32) | (*v2 as i32)) as f64)165		}166		(Val::Num(v1), BinaryOpType::BitXor, Val::Num(v2)) => {167			Val::Num(((*v1 as i32) ^ (*v2 as i32)) as f64)168		}169		(Val::Num(v1), BinaryOpType::Lhs, Val::Num(v2)) => {170			if *v2 < 0.0 {171				create_error_result(Error::RuntimeError("shift by negative exponent".into()))?172			}173			Val::Num(((*v1 as i32) << (*v2 as i32)) as f64)174		}175		(Val::Num(v1), BinaryOpType::Rhs, Val::Num(v2)) => {176			if *v2 < 0.0 {177				create_error_result(Error::RuntimeError("shift by negative exponent".into()))?178			}179			Val::Num(((*v1 as i32) >> (*v2 as i32)) as f64)180		}181182		_ => create_error_result(Error::BinaryOperatorDoesNotOperateOnValues(183			op,184			a.value_type()?,185			b.value_type()?,186		))?,187	})188}189190future_wrapper!(HashMap<Rc<str>, LazyBinding>, FutureNewBindings);191future_wrapper!(ObjValue, FutureObjValue);192193pub fn evaluate_comp<T>(194	context: Context,195	value: &impl Fn(Context) -> Result<T>,196	specs: &[CompSpec],197) -> Result<Option<Vec<T>>> {198	Ok(match specs.get(0) {199		None => Some(vec![value(context)?]),200		Some(CompSpec::IfSpec(IfSpecData(cond))) => {201			if evaluate(context.clone(), &cond)?.try_cast_bool("if spec")? {202				evaluate_comp(context, value, &specs[1..])?203			} else {204				None205			}206		}207		Some(CompSpec::ForSpec(ForSpecData(var, expr))) => {208			match evaluate(context.clone(), &expr)?.unwrap_if_lazy()? {209				Val::Arr(list) => {210					let mut out = Vec::new();211					for item in list.iter() {212						let item = item.unwrap_if_lazy()?;213						out.push(evaluate_comp(214							context.with_var(var.clone(), item.clone())?,215							value,216							&specs[1..],217						)?);218					}219					Some(out.into_iter().flatten().flatten().collect())220				}221				_ => create_error_result(Error::InComprehensionCanOnlyIterateOverArray)?,222			}223		}224	})225}226227pub fn evaluate_member_list_object(context: Context, members: &[Member]) -> Result<ObjValue> {228	let new_bindings = FutureNewBindings::new();229	let future_this = FutureObjValue::new();230	let context_creator = context_creator!(231		closure!(clone context, clone new_bindings, |this: Option<ObjValue>, super_obj: Option<ObjValue>| {232			Ok(context.extend_unbound(233				new_bindings.clone().unwrap(),234				context.dollar().clone().or_else(||this.clone()),235				Some(this.unwrap()),236				super_obj237			)?)238		})239	);240	{241		let mut bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();242		for (n, b) in members243			.iter()244			.filter_map(|m| match m {245				Member::BindStmt(b) => Some(b.clone()),246				_ => None,247			})248			.map(|b| evaluate_binding(&b, context_creator.clone()))249		{250			bindings.insert(n, b);251		}252		new_bindings.fill(bindings);253	}254255	let mut new_members = HashMap::new();256	for member in members.iter() {257		match member {258			Member::Field(FieldMember {259				name,260				plus,261				params: None,262				visibility,263				value,264			}) => {265				let name = evaluate_field_name(context.clone(), &name)?;266				if name.is_none() {267					continue;268				}269				let name = name.unwrap();270				new_members.insert(271					name.clone(),272					ObjMember {273						add: *plus,274						visibility: *visibility,275						invoke: LazyBinding::Bindable(Rc::new(276							closure!(clone name, clone value, clone context_creator, |this, super_obj| {277								Ok(LazyVal::new_resolved(evaluate(278									context_creator.0(this, super_obj)?,279									&value,280								)?))281							}),282						)),283						location: value.1.clone(),284					},285				);286			}287			Member::Field(FieldMember {288				name,289				params: Some(params),290				value,291				..292			}) => {293				let name = evaluate_field_name(context.clone(), &name)?;294				if name.is_none() {295					continue;296				}297				let name = name.unwrap();298				new_members.insert(299					name.clone(),300					ObjMember {301						add: false,302						visibility: Visibility::Hidden,303						invoke: LazyBinding::Bindable(Rc::new(304							closure!(clone value, clone context_creator, clone params, clone name, |this, super_obj| {305								// TODO: Assert306								Ok(LazyVal::new_resolved(evaluate_method(307									context_creator.0(this, super_obj)?,308									name.clone(),309									params.clone(),310									value.clone(),311								)))312							}),313						)),314						location: value.1.clone(),315					},316				);317			}318			Member::BindStmt(_) => {}319			Member::AssertStmt(_) => {}320		}321	}322	Ok(future_this.fill(ObjValue::new(None, Rc::new(new_members))))323}324325pub fn evaluate_object(context: Context, object: &ObjBody) -> Result<ObjValue> {326	Ok(match object {327		ObjBody::MemberList(members) => evaluate_member_list_object(context, &members)?,328		ObjBody::ObjComp(obj) => {329			let future_this = FutureObjValue::new();330			let mut new_members = HashMap::new();331			for (k, v) in evaluate_comp(332				context.clone(),333				&|ctx| {334					let new_bindings = FutureNewBindings::new();335					let context_creator = context_creator!(336						closure!(clone context, clone new_bindings, |this: Option<ObjValue>, super_obj: Option<ObjValue>| {337							Ok(context.extend_unbound(338								new_bindings.clone().unwrap(),339								context.dollar().clone().or_else(||this.clone()),340								None,341								super_obj342							)?)343						})344					);345					let mut bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();346					for (n, b) in obj347						.pre_locals348						.iter()349						.chain(obj.post_locals.iter())350						.map(|b| evaluate_binding(b, context_creator.clone()))351					{352						bindings.insert(n, b);353					}354					let bindings = new_bindings.fill(bindings);355					let ctx = ctx.extend_unbound(bindings, None, None, None)?;356					let key = evaluate(ctx.clone(), &obj.key)?;357					let value = LazyBinding::Bindable(Rc::new(358						closure!(clone ctx, clone obj.value, |this, _super_obj| {359							Ok(LazyVal::new_resolved(evaluate(ctx.extend(HashMap::new(), None, this, None)?, &value)?))360						}),361					));362363					Ok((key, value))364				},365				&obj.compspecs,366			)?367			.unwrap()368			{369				match k {370					Val::Null => {}371					Val::Str(n) => {372						new_members.insert(373							n,374							ObjMember {375								add: false,376								visibility: Visibility::Normal,377								invoke: v,378								location: obj.value.1.clone(),379							},380						);381					}382					v => create_error_result(Error::FieldMustBeStringGot(v.value_type()?))?,383				}384			}385386			future_this.fill(ObjValue::new(None, Rc::new(new_members)))387		}388	})389}390391/// Extracts code block and disables inlining for them392/// Fixes WASM to java bytecode compilation failing because of very large method393macro_rules! noinline {394	($e:expr) => {395		(#[inline(never)]396		move || $e)()397	};398}399400pub fn evaluate_apply(401	context: Context,402	value: &LocExpr,403	args: &ArgsDesc,404	loc: &Option<ExprLocation>,405	tailstrict: bool,406) -> Result<Val> {407	let lazy = evaluate(context.clone(), value)?;408	let value = lazy.unwrap_if_lazy()?;409	Ok(match value {410		Val::Intristic(ns, name) => match (&ns as &str, &name as &str) {411			// arr/string/function412			("std", "length") => noinline!(parse_args!(context, "std.length", args, 1, [413				0, x: [Val::Str|Val::Arr|Val::Obj], vec![ValType::Str, ValType::Arr, ValType::Obj];414			], {415				Ok(match x {416					Val::Str(n) => Val::Num(n.chars().count() as f64),417					Val::Arr(i) => Val::Num(i.len() as f64),418					Val::Obj(o) => Val::Num(419						o.fields_visibility()420							.into_iter()421							.filter(|(_k, v)| *v)422							.count() as f64,423					),424					_ => unreachable!(),425				})426			}))?,427			// any428			("std", "type") => parse_args!(context, "std.type", args, 1, [429				0, x, vec![];430			], {431				Val::Str(x.value_type()?.name().into())432			}),433			// length, idx=>any434			("std", "makeArray") => noinline!(parse_args!(context, "std.makeArray", args, 2, [435				0, sz: [Val::Num]!!Val::Num, vec![ValType::Num];436				1, func: [Val::Func]!!Val::Func, vec![ValType::Func];437			], {438				if sz < 0.0 {439					create_error_result(crate::error::Error::RuntimeError(format!("makeArray requires size >= 0, got {}", sz).into()))?;440				}441				let mut out = Vec::with_capacity(sz as usize);442				for i in 0..sz as usize {443					out.push(func.evaluate_values(444						Context::new(),445						&[Val::Num(i as f64)]446					)?)447				}448				Ok(Val::Arr(Rc::new(out)))449			}))?,450			// string451			("std", "codepoint") => parse_args!(context, "std.codepoint", args, 1, [452				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];453			], {454				assert!(455					str.chars().count() == 1,456					"std.codepoint should receive single char string"457				);458				Val::Num(str.chars().take(1).next().unwrap() as u32 as f64)459			}),460			// object, includeHidden461			("std", "objectFieldsEx") => {462				noinline!(parse_args!(context, "std.objectFieldsEx",args, 2, [463					0, obj: [Val::Obj]!!Val::Obj, vec![ValType::Obj];464					1, inc_hidden: [Val::Bool]!!Val::Bool, vec![ValType::Bool];465				], {466					let mut out = obj.fields_visibility()467						.into_iter()468						.filter(|(_k, v)| *v || inc_hidden)469						.map(|(k, _v)|k)470						.collect::<Vec<_>>();471					out.sort();472					Ok(Val::Arr(Rc::new(out.into_iter().map(Val::Str).collect())))473				}))?474			}475			// object, field, includeHidden476			("std", "objectHasEx") => parse_args!(context, "std.objectHasEx", args, 3, [477				0, obj: [Val::Obj]!!Val::Obj, vec![ValType::Obj];478				1, f: [Val::Str]!!Val::Str, vec![ValType::Str];479				2, inc_hidden: [Val::Bool]!!Val::Bool, vec![ValType::Bool];480			], {481				Val::Bool(482					obj.fields_visibility()483						.into_iter()484						.filter(|(_k, v)| *v || inc_hidden)485						.any(|(k, _v)| *k == *f),486				)487			}),488			("std", "primitiveEquals") => parse_args!(context, "std.primitiveEquals", args, 2, [489				0, a, vec![];490				1, b, vec![];491			], {492				Val::Bool(primitive_equals(&a, &b)?)493			}),494			// faster495			("std", "equals") => parse_args!(context, "std.equals", args, 2, [496				0, a, vec![];497				1, b, vec![];498			], {499				Val::Bool(equals(&a, &b)?)500			}),501			("std", "modulo") => parse_args!(context, "std.modulo", args, 2, [502				0, a: [Val::Num]!!Val::Num, vec![ValType::Num];503				1, b: [Val::Num]!!Val::Num, vec![ValType::Num];504			], {505				Val::Num(a % b)506			}),507			("std", "floor") => parse_args!(context, "std.floor", args, 1, [508				0, x: [Val::Num]!!Val::Num, vec![ValType::Num];509			], {510				Val::Num(x.floor())511			}),512			("std", "log") => parse_args!(context, "std.log", args, 2, [513				0, n: [Val::Num]!!Val::Num, vec![ValType::Num];514			], {515				Val::Num(n.ln())516			}),517			("std", "trace") => parse_args!(context, "std.trace", args, 2, [518				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];519				1, rest, vec![];520			], {521				eprint!("TRACE:");522				if let Some(loc) = loc {523					with_state(|s|{524						let locs = s.map_source_locations(&loc.0, &[loc.1]);525						eprint!(" {}:{}", loc.0.file_name().unwrap().to_str().unwrap(), locs[0].line);526					});527				}528				eprintln!(" {}", str);529				rest530			}),531			("std", "pow") => parse_args!(context, "std.modulo", args, 2, [532				0, x: [Val::Num]!!Val::Num, vec![ValType::Num];533				1, n: [Val::Num]!!Val::Num, vec![ValType::Num];534			], {535				Val::Num(x.powf(n))536			}),537			("std", "extVar") => parse_args!(context, "std.extVar", args, 2, [538				0, x: [Val::Str]!!Val::Str, vec![ValType::Str];539			], {540				with_state(|s| s.settings().ext_vars.get(&x).cloned()).ok_or_else(541					|| create_error(crate::Error::UndefinedExternalVariable(x)),542				)?543			}),544			("std", "filter") => noinline!(parse_args!(context, "std.filter", args, 2, [545				0, func: [Val::Func]!!Val::Func, vec![ValType::Func];546				1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];547			], {548				Ok(Val::Arr(Rc::new(549					arr.iter()550						.cloned()551						.filter(|e| {552							func553								.evaluate_values(context.clone(), &[e.clone()])554								.unwrap()555								.try_cast_bool("filter predicate")556								.unwrap()557						})558						.collect(),559				)))560			}))?,561			// faster562			("std", "foldl") => noinline!(parse_args!(context, "std.foldl", args, 3, [563				0, func: [Val::Func]!!Val::Func, vec![ValType::Func];564				1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];565				2, init, vec![];566			], {567				let mut acc = init;568				for i in arr.iter().cloned() {569					acc = func.evaluate_values(context.clone(), &[acc, i])?;570				}571				Ok(acc)572			}))?,573			// faster574			("std", "foldr") => noinline!(parse_args!(context, "std.foldr", args, 3, [575				0, func: [Val::Func]!!Val::Func, vec![ValType::Func];576				1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];577				2, init, vec![];578			], {579				let mut acc = init;580				for i in arr.iter().rev().cloned() {581					acc = func.evaluate_values(context.clone(), &[acc, i])?;582				}583				Ok(acc)584			}))?,585			// faster586			("std", "sortImpl") => noinline!(parse_args!(context, "std.sort", args, 2, [587				0, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];588				1, keyF: [Val::Func]!!Val::Func, vec![ValType::Func];589			], {590				if arr.len() <= 1 {591					return Ok(Val::Arr(arr))592				}593				let mut new_arr = arr.iter().cloned().collect::<Vec<_>>();594				match keyF.evaluate_values(context.clone(), &[new_arr[0].clone()])? {595					Val::Str(_) => {596						let mut err = None;597						new_arr.sort_by_cached_key(|k| {598							match keyF.evaluate_values(context.clone(), &[k.clone()]) {599								Ok(Val::Str(v)) => v,600								Ok(_) => {601									err = Some(create_error(crate::error::Error::RuntimeError("types of all array elements should equal".into())));602									"".into()603								}604								Err(e) => {605									err = Some(e);606									"".into()607								}608							}609						});610						if let Some(e) = err {611							return Err(e);612						}613					},614					Val::Num(_) => {615						let mut err = None;616						new_arr.sort_unstable_by(|a, b| {617							match (keyF.evaluate_values(context.clone(), &[a.clone()]), keyF.evaluate_values(context.clone(), &[b.clone()])) {618								(Ok(Val::Num(a)), Ok(Val::Num(b))) => a.partial_cmp(&b).unwrap(),619								(Ok(_a), Ok(_b)) => {620									err = Some(create_error(crate::error::Error::RuntimeError("types of all array elements should equal".into())));621									Ordering::Equal622								}623								(Err(e), _) | (_, Err(e)) => {624									err = Some(e);625									Ordering::Equal626								}627							}628						});629						if let Some(e) = err {630							return Err(e);631						}632					},633					_ => return Err(create_error(crate::error::Error::RuntimeError("keys should be number or string".into())))634				}635				Ok(Val::Arr(Rc::new(new_arr)))636			}))?,637			// faster638			("std", "format") => parse_args!(context, "std.format", args, 2, [639				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];640				1, vals: [Val::Arr|Val::Obj], vec![ValType::Arr, ValType::Obj];641			], {642				match vals {643					Val::Arr(vals) => Val::Str(format_arr(&str, &vals).unwrap().into()),644					Val::Obj(obj) => Val::Str(format_obj(&str, &obj).unwrap().into()),645					_ => unreachable!()646				}647			}),648			// faster649			("std", "range") => parse_args!(context, "std.range", args, 2, [650				0, from: [Val::Num]!!Val::Num, vec![ValType::Num];651				0, to: [Val::Num]!!Val::Num, vec![ValType::Num];652			], {653				let mut out = Vec::with_capacity((1+to as usize-from as usize).max(0));654				for i in from as usize..=to as usize {655					out.push(Val::Num(i as f64));656				}657				Val::Arr(Rc::new(out))658			}),659			("std", "char") => parse_args!(context, "std.char", args, 1, [660				0, n: [Val::Num]!!Val::Num, vec![ValType::Num];661			], {662				let mut out = String::new();663				out.push(std::char::from_u32(n as u32).ok_or_else(||664					create_error(crate::error::Error::InvalidUnicodeCodepointGot(n as u32))665				)?);666				Ok(Val::Str(out.into()))667			})?,668			("std", "encodeUTF8") => parse_args!(context, "std.encodeUtf8", args, 1, [669				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];670			], {671				Val::Arr(Rc::new(str.bytes().map(|b| Val::Num(b as f64)).collect()))672			}),673			("std", "md5") => noinline!(parse_args!(context, "std.md5", args, 1, [674				0, str: [Val::Str]!!Val::Str, vec![ValType::Str];675			], {676				Ok(Val::Str(format!("{:x}", md5::compute(&str.as_bytes())).into()))677			}))?,678			// faster679			("std", "base64") => parse_args!(context, "std.base64", args, 1, [680				0, input: [Val::Str | Val::Arr], vec![ValType::Arr, ValType::Str];681			], {682				Val::Str(match input {683					Val::Str(s) => {684						base64::encode(s.bytes().collect::<Vec<_>>()).into()685					},686					Val::Arr(a) => {687						base64::encode(a.iter().map(|v| {688							Ok(v.clone().try_cast_num("base64 array")? as u8)689						}).collect::<Result<Vec<_>>>()?).into()690					},691					_ => unreachable!()692				})693			}),694			// faster695			("std", "join") => noinline!(parse_args!(context, "std.join", args, 2, [696				0, sep: [Val::Str|Val::Arr], vec![ValType::Str, ValType::Arr];697				1, arr: [Val::Arr]!!Val::Arr, vec![ValType::Arr];698			], {699				Ok(match sep {700					Val::Arr(joiner_items) => {701						let mut out = Vec::new();702703						let mut first = true;704						for item in arr.iter().cloned() {705							if let Val::Arr(items) = item.unwrap_if_lazy()? {706								if !first {707									out.reserve(joiner_items.len());708									out.extend(joiner_items.iter().cloned());709								}710								first = false;711								out.reserve(items.len());712								out.extend(items.iter().cloned());713							} else {714								create_error_result(crate::Error::RuntimeError("in std.join all items should be arrays".into()))?;715							}716						}717718						Val::Arr(Rc::new(out))719					},720					Val::Str(sep) => {721						let mut out = String::new();722723						let mut first = true;724						for item in arr.iter().cloned() {725							if let Val::Str(item) = item.unwrap_if_lazy()? {726								if !first {727									out += &sep;728								}729								first = false;730								out += &item;731							} else {732								create_error_result(crate::Error::RuntimeError("in std.join all items should be strings".into()))?;733							}734						}735736						Val::Str(out.into())737					},738					_ => unreachable!()739				})740			}))?,741			// Faster742			("std", "escapeStringJson") => parse_args!(context, "std.escapeStringJson", args, 1, [743				0, str_: [Val::Str]!!Val::Str, vec![ValType::Str];744			], {745				Val::Str(escape_string_json(&str_).into())746			}),747			// Faster748			("std", "manifestJsonEx") => parse_args!(context, "std.manifestJsonEx", args, 2, [749				0, value, vec![];750				1, indent: [Val::Str]!!Val::Str, vec![ValType::Str];751			], {752				Val::Str(manifest_json_ex(&value, &indent)?.into())753			}),754			(ns, name) => {755				create_error_result(crate::Error::IntristicNotFound(ns.into(), name.into()))?756			}757		},758		Val::Func(f) => {759			let body = || f.evaluate(context, args, tailstrict);760			if tailstrict {761				body()?762			} else {763				push(loc, || format!("function <{}> call", f.name), body)?764			}765		}766		v => create_error_result(crate::Error::OnlyFunctionsCanBeCalledGot(v.value_type()?))?,767	})768}769770pub fn evaluate_named(context: Context, lexpr: &LocExpr, name: Rc<str>) -> Result<Val> {771	use Expr::*;772	let LocExpr(expr, _loc) = lexpr;773	Ok(match &**expr {774		Function(params, body) => evaluate_method(context, name, params.clone(), body.clone()),775		_ => evaluate(context, lexpr)?,776	})777}778779pub fn evaluate(context: Context, expr: &LocExpr) -> Result<Val> {780	use Expr::*;781	let LocExpr(expr, loc) = expr;782	Ok(match &**expr {783		Literal(LiteralType::This) => Val::Obj(784			context785				.this()786				.clone()787				.ok_or_else(|| create_error(crate::Error::CantUseSelfOutsideOfObject))?,788		),789		Literal(LiteralType::Dollar) => Val::Obj(790			context791				.dollar()792				.clone()793				.ok_or_else(|| create_error(crate::Error::NoTopLevelObjectFound))?,794		),795		Literal(LiteralType::True) => Val::Bool(true),796		Literal(LiteralType::False) => Val::Bool(false),797		Literal(LiteralType::Null) => Val::Null,798		Parened(e) => evaluate(context, e)?,799		Str(v) => Val::Str(v.clone()),800		Num(v) => Val::new_checked_num(*v)?,801		BinaryOp(v1, o, v2) => evaluate_binary_op_special(context, &v1, *o, &v2)?,802		UnaryOp(o, v) => evaluate_unary_op(*o, &evaluate(context, v)?)?,803		Var(name) => push(804			loc,805			|| format!("variable <{}>", name),806			|| Ok(Val::Lazy(context.binding(name.clone())?).unwrap_if_lazy()?),807		)?,808		Index(LocExpr(v, _), index) if matches!(&**v, Expr::Literal(LiteralType::Super)) => {809			let name = evaluate(context.clone(), index)?.try_cast_str("object index")?;810			context811				.super_obj()812				.clone()813				.expect("no super found")814				.get_raw(name, &context.this().clone().expect("no this found"))?815				.expect("value not found")816		}817		Index(value, index) => {818			match (819				evaluate(context.clone(), value)?.unwrap_if_lazy()?,820				evaluate(context, index)?,821			) {822				(Val::Obj(v), Val::Str(s)) => {823					if let Some(v) = v.get(s.clone())? {824						v.unwrap_if_lazy()?825					} else if let Some(Val::Str(n)) = v.get("__intristic_namespace__".into())? {826						Val::Intristic(n, s)827					} else {828						create_error_result(crate::Error::NoSuchField(s))?829					}830				}831				(Val::Obj(_), n) => create_error_result(crate::Error::ValueIndexMustBeTypeGot(832					ValType::Obj,833					ValType::Str,834					n.value_type()?,835				))?,836837				(Val::Arr(v), Val::Num(n)) => {838					if n.fract() > f64::EPSILON {839						create_error_result(crate::Error::FractionalIndex)?840					}841					v.get(n as usize)842						.ok_or_else(|| {843							create_error(crate::Error::ArrayBoundsError(n as usize, v.len()))844						})?845						.clone()846						.unwrap_if_lazy()?847				}848				(Val::Arr(_), Val::Str(n)) => {849					create_error_result(crate::Error::AttemptedIndexAnArrayWithString(n))?850				}851				(Val::Arr(_), n) => create_error_result(crate::Error::ValueIndexMustBeTypeGot(852					ValType::Arr,853					ValType::Num,854					n.value_type()?,855				))?,856857				(Val::Str(s), Val::Num(n)) => Val::Str(858					s.chars()859						.skip(n as usize)860						.take(1)861						.collect::<String>()862						.into(),863				),864				(Val::Str(_), n) => create_error_result(crate::Error::ValueIndexMustBeTypeGot(865					ValType::Str,866					ValType::Num,867					n.value_type()?,868				))?,869870				(v, _) => create_error_result(crate::Error::CantIndexInto(v.value_type()?))?,871			}872		}873		LocalExpr(bindings, returned) => {874			let mut new_bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();875			let future_context = Context::new_future();876877			let context_creator = context_creator!(878				closure!(clone future_context, |_, _| Ok(future_context.clone().unwrap()))879			);880881			for (k, v) in bindings882				.iter()883				.map(|b| evaluate_binding(b, context_creator.clone()))884			{885				new_bindings.insert(k, v);886			}887888			let context = context889				.extend_unbound(new_bindings, None, None, None)?890				.into_future(future_context);891			evaluate(context, &returned.clone())?892		}893		Arr(items) => {894			let mut out = Vec::with_capacity(items.len());895			for item in items {896				out.push(Val::Lazy(lazy_val!(897					closure!(clone context, clone item, || {898						evaluate(context.clone(), &item)899					})900				)));901			}902			Val::Arr(Rc::new(out))903		}904		ArrComp(expr, compspecs) => Val::Arr(905			// First compspec should be forspec, so no "None" possible here906			Rc::new(evaluate_comp(context, &|ctx| evaluate(ctx, expr), compspecs)?.unwrap()),907		),908		Obj(body) => Val::Obj(evaluate_object(context, body)?),909		ObjExtend(s, t) => evaluate_add_op(910			&evaluate(context.clone(), s)?,911			&Val::Obj(evaluate_object(context, t)?),912		)?,913		Apply(value, args, tailstrict) => evaluate_apply(context, value, args, loc, *tailstrict)?,914		Function(params, body) => {915			evaluate_method(context, "anonymous".into(), params.clone(), body.clone())916		}917		AssertExpr(AssertStmt(value, msg), returned) => {918			let assertion_result = push(919				&value.1,920				|| "assertion condition".to_owned(),921				|| {922					evaluate(context.clone(), &value)?923						.try_cast_bool("assertion condition should be boolean")924				},925			)?;926			if assertion_result {927				evaluate(context, returned)?928			} else if let Some(msg) = msg {929				create_error_result(crate::Error::AssertionFailed(evaluate(context, msg)?))?930			} else {931				create_error_result(crate::Error::AssertionFailed(Val::Null))?932			}933		}934		Error(e) => push(935			&loc,936			|| "error statement".to_owned(),937			|| {938				create_error_result(crate::Error::RuntimeError(939					evaluate(context, e)?.try_cast_str("error text should be string")?,940				))?941			},942		)?,943		IfElse {944			cond,945			cond_then,946			cond_else,947		} => {948			if evaluate(context.clone(), &cond.0)?949				.try_cast_bool("if condition should be boolean")?950			{951				evaluate(context, cond_then)?952			} else {953				match cond_else {954					Some(v) => evaluate(context, v)?,955					None => Val::Null,956				}957			}958		}959		Import(path) => {960			let mut tmp = loc961				.clone()962				.expect("imports can't be used without loc_data")963				.0;964			let import_location = Rc::make_mut(&mut tmp);965			import_location.pop();966			push(967				loc,968				|| format!("import {:?}", path),969				|| with_state(|s| s.import_file(&import_location, path)),970			)?971		}972		ImportStr(path) => {973			let mut tmp = loc974				.clone()975				.expect("imports can't be used without loc_data")976				.0;977			let import_location = Rc::make_mut(&mut tmp);978			import_location.pop();979			Val::Str(with_state(|s| s.import_file_str(&import_location, path))?)980		}981		Literal(LiteralType::Super) => return create_error_result(crate::Error::StandaloneSuper),982	})983}