git.delta.rocks / jrsonnet / refs/commits / d710b4fe6639

1#![cfg_attr(feature = "unstable", feature(stmt_expr_attributes))]2#![warn(clippy::all, clippy::nursery)]3#![allow(4	macro_expanded_macro_exports_accessed_by_absolute_paths,5	clippy::ptr_arg6)]78// For jrsonnet-macros9extern crate self as jrsonnet_evaluator;1011mod builtin;12mod ctx;13mod dynamic;14pub mod error;15mod evaluate;16pub mod function;17mod import;18mod integrations;19mod map;20pub mod native;21mod obj;22pub mod trace;23pub mod typed;24mod val;2526pub use jrsonnet_parser as parser;2728pub use ctx::*;29pub use dynamic::*;30use error::{Error::*, LocError, Result, StackTraceElement};31pub use evaluate::*;32use function::{Builtin, TlaArg};33use gc::{GcHashMap, TraceBox};34use gcmodule::{Cc, Trace};35pub use import::*;36pub use jrsonnet_interner::IStr;37use jrsonnet_parser::*;38pub use obj::*;39use std::{40	cell::{Ref, RefCell, RefMut},41	collections::HashMap,42	fmt::Debug,43	path::{Path, PathBuf},44	rc::Rc,45};46use trace::{location_to_offset, offset_to_location, CodeLocation, CompactFormat, TraceFormat};47pub use val::*;48pub mod gc;4950pub trait Bindable: Trace + 'static {51	fn bind(&self, this: Option<ObjValue>, super_obj: Option<ObjValue>) -> Result<LazyVal>;52}5354#[derive(Clone, Trace)]55pub enum LazyBinding {56	Bindable(Cc<TraceBox<dyn Bindable>>),57	Bound(LazyVal),58}5960impl Debug for LazyBinding {61	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {62		write!(f, "LazyBinding")63	}64}65impl LazyBinding {66	pub fn evaluate(&self, this: Option<ObjValue>, super_obj: Option<ObjValue>) -> Result<LazyVal> {67		match self {68			Self::Bindable(v) => v.bind(this, super_obj),69			Self::Bound(v) => Ok(v.clone()),70		}71	}72}7374pub struct EvaluationSettings {75	/// Limits recursion by limiting the number of stack frames76	pub max_stack: usize,77	/// Limits amount of stack trace items preserved78	pub max_trace: usize,79	/// Used for s`td.extVar`80	pub ext_vars: HashMap<IStr, Val>,81	/// Used for ext.native82	pub ext_natives: HashMap<IStr, Cc<TraceBox<dyn Builtin>>>,83	/// TLA vars84	pub tla_vars: HashMap<IStr, TlaArg>,85	/// Global variables are inserted in default context86	pub globals: HashMap<IStr, Val>,87	/// Used to resolve file locations/contents88	pub import_resolver: Box<dyn ImportResolver>,89	/// Used in manifestification functions90	pub manifest_format: ManifestFormat,91	/// Used for bindings92	pub trace_format: Box<dyn TraceFormat>,93}94impl Default for EvaluationSettings {95	fn default() -> Self {96		Self {97			max_stack: 200,98			max_trace: 20,99			globals: Default::default(),100			ext_vars: Default::default(),101			ext_natives: Default::default(),102			tla_vars: Default::default(),103			import_resolver: Box::new(DummyImportResolver),104			manifest_format: ManifestFormat::Json(4),105			trace_format: Box::new(CompactFormat {106				padding: 4,107				resolver: trace::PathResolver::Absolute,108			}),109		}110	}111}112113#[derive(Default)]114struct EvaluationData {115	/// Used for stack overflow detection, stacktrace is populated on unwind116	stack_depth: usize,117	/// Updated every time stack entry is popt118	stack_generation: usize,119120	breakpoints: Breakpoints,121	/// Contains file source codes and evaluation results for imports and pretty-printed stacktraces122	files: HashMap<Rc<Path>, FileData>,123	str_files: HashMap<Rc<Path>, IStr>,124}125126pub struct FileData {127	source_code: IStr,128	parsed: LocExpr,129	evaluated: Option<Val>,130}131132#[allow(clippy::type_complexity)]133pub struct Breakpoint {134	loc: ExprLocation,135	collected: RefCell<HashMap<usize, (usize, Vec<Result<Val>>)>>,136}137#[derive(Default)]138struct Breakpoints(Vec<Rc<Breakpoint>>);139impl Breakpoints {140	fn insert(141		&self,142		stack_depth: usize,143		stack_generation: usize,144		loc: &ExprLocation,145		result: Result<Val>,146	) -> Result<Val> {147		if self.0.is_empty() {148			return result;149		}150		for item in self.0.iter() {151			if item.loc.belongs_to(loc) {152				let mut collected = item.collected.borrow_mut();153				let (depth, vals) = collected.entry(stack_generation).or_default();154				if stack_depth > *depth {155					vals.clear();156				}157				vals.push(result.clone());158			}159		}160		result161	}162}163164#[derive(Default)]165pub struct EvaluationStateInternals {166	/// Internal state167	data: RefCell<EvaluationData>,168	/// Settings, safe to change at runtime169	settings: RefCell<EvaluationSettings>,170}171172thread_local! {173	/// Contains the state for a currently executed file.174	/// Global state is fine here.175	pub(crate) static EVAL_STATE: RefCell<Option<EvaluationState>> = RefCell::new(None)176}177pub(crate) fn with_state<T>(f: impl FnOnce(&EvaluationState) -> T) -> T {178	EVAL_STATE.with(|s| f(s.borrow().as_ref().unwrap()))179}180pub fn push_frame<T>(181	e: Option<&ExprLocation>,182	frame_desc: impl FnOnce() -> String,183	f: impl FnOnce() -> Result<T>,184) -> Result<T> {185	with_state(|s| s.push(e, frame_desc, f))186}187188#[allow(dead_code)]189pub fn push_val_frame(190	e: &ExprLocation,191	frame_desc: impl FnOnce() -> String,192	f: impl FnOnce() -> Result<Val>,193) -> Result<Val> {194	with_state(|s| s.push_val(e, frame_desc, f))195}196#[allow(dead_code)]197pub fn push_description_frame<T>(198	frame_desc: impl FnOnce() -> String,199	f: impl FnOnce() -> Result<T>,200) -> Result<T> {201	with_state(|s| s.push_description(frame_desc, f))202}203204/// Maintains stack trace and import resolution205#[derive(Default, Clone)]206pub struct EvaluationState(Rc<EvaluationStateInternals>);207208impl EvaluationState {209	/// Parses and adds file as loaded210	pub fn add_file(&self, path: Rc<Path>, source_code: IStr) -> Result<LocExpr> {211		let parsed = parse(212			&source_code,213			&ParserSettings {214				file_name: path.clone(),215			},216		)217		.map_err(|error| ImportSyntaxError {218			error: Box::new(error),219			path: path.to_owned(),220			source_code: source_code.clone(),221		})?;222		self.add_parsed_file(path, source_code, parsed.clone())?;223224		Ok(parsed)225	}226227	pub fn reset_evaluation_state(&self, name: &Path) {228		self.data_mut()229			.files230			.get_mut(name)231			.unwrap()232			.evaluated233			.take();234	}235236	/// Adds file by source code and parsed expr237	pub fn add_parsed_file(238		&self,239		name: Rc<Path>,240		source_code: IStr,241		parsed: LocExpr,242	) -> Result<()> {243		self.data_mut().files.insert(244			name,245			FileData {246				source_code,247				parsed,248				evaluated: None,249			},250		);251252		Ok(())253	}254	pub fn get_source(&self, name: &Path) -> Option<IStr> {255		let ro_map = &self.data().files;256		ro_map.get(name).map(|value| value.source_code.clone())257	}258	pub fn map_source_locations(&self, file: &Path, locs: &[usize]) -> Vec<CodeLocation> {259		offset_to_location(&self.get_source(file).unwrap_or_else(|| "".into()), locs)260	}261	pub fn map_from_source_location(262		&self,263		file: &Path,264		line: usize,265		column: usize,266	) -> Option<usize> {267		location_to_offset(&self.get_source(file).unwrap(), line, column)268	}269	pub fn import_file(&self, from: &Path, path: &Path) -> Result<Val> {270		let file_path = self.resolve_file(from, path)?;271		{272			let data = self.data();273			let files = &data.files;274			if files.contains_key(&file_path as &Path) {275				drop(data);276				return self.evaluate_loaded_file_raw(&file_path);277			}278		}279		let contents = self.load_file_contents(&file_path)?;280		self.add_file(file_path.clone(), contents)?;281		self.evaluate_loaded_file_raw(&file_path)282	}283	pub(crate) fn import_file_str(&self, from: &Path, path: &Path) -> Result<IStr> {284		let path = self.resolve_file(from, path)?;285		if !self.data().str_files.contains_key(&path) {286			let file_str = self.load_file_contents(&path)?;287			self.data_mut().str_files.insert(path.clone(), file_str);288		}289		Ok(self.data().str_files.get(&path).cloned().unwrap())290	}291292	fn evaluate_loaded_file_raw(&self, name: &Path) -> Result<Val> {293		let expr: LocExpr = {294			let ro_map = &self.data().files;295			let value = ro_map296				.get(name)297				.unwrap_or_else(|| panic!("file not added: {:?}", name));298			if let Some(ref evaluated) = value.evaluated {299				return Ok(evaluated.clone());300			}301			value.parsed.clone()302		};303		let value = evaluate(self.create_default_context(), &expr)?;304		{305			self.data_mut()306				.files307				.get_mut(name)308				.unwrap()309				.evaluated310				.replace(value.clone());311		}312		Ok(value)313	}314315	/// Adds standard library global variable (std) to this evaluator316	pub fn with_stdlib(&self) -> &Self {317		use jrsonnet_stdlib::STDLIB_STR;318		let std_path: Rc<Path> = PathBuf::from("std.jsonnet").into();319		self.run_in_state(|| {320			self.add_parsed_file(321				std_path.clone(),322				STDLIB_STR.to_owned().into(),323				builtin::get_parsed_stdlib(),324			)325			.unwrap();326			let val = self.evaluate_loaded_file_raw(&std_path).unwrap();327			self.settings_mut().globals.insert("std".into(), val);328		});329		self330	}331332	/// Creates context with all passed global variables333	pub fn create_default_context(&self) -> Context {334		let globals = &self.settings().globals;335		let mut new_bindings = GcHashMap::with_capacity(globals.len());336		for (name, value) in globals.iter() {337			new_bindings.insert(name.clone(), LazyVal::new_resolved(value.clone()));338		}339		Context::new().extend_bound(new_bindings)340	}341342	/// Executes code creating a new stack frame343	pub fn push<T>(344		&self,345		e: Option<&ExprLocation>,346		frame_desc: impl FnOnce() -> String,347		f: impl FnOnce() -> Result<T>,348	) -> Result<T> {349		{350			let mut data = self.data_mut();351			let stack_depth = &mut data.stack_depth;352			if *stack_depth > self.max_stack() {353				// Error creation uses data, so i drop guard here354				drop(data);355				throw!(StackOverflow);356			} else {357				*stack_depth += 1;358			}359		}360		let result = f();361		{362			let mut data = self.data_mut();363			data.stack_depth -= 1;364			data.stack_generation += 1;365		}366		if let Err(mut err) = result {367			err.trace_mut().0.push(StackTraceElement {368				location: e.cloned(),369				desc: frame_desc(),370			});371			return Err(err);372		}373		result374	}375376	/// Executes code creating a new stack frame377	pub fn push_val(378		&self,379		e: &ExprLocation,380		frame_desc: impl FnOnce() -> String,381		f: impl FnOnce() -> Result<Val>,382	) -> Result<Val> {383		{384			let mut data = self.data_mut();385			let stack_depth = &mut data.stack_depth;386			if *stack_depth > self.max_stack() {387				// Error creation uses data, so i drop guard here388				drop(data);389				throw!(StackOverflow);390			} else {391				*stack_depth += 1;392			}393		}394		let mut result = f();395		{396			let mut data = self.data_mut();397			data.stack_depth -= 1;398			data.stack_generation += 1;399			result = data400				.breakpoints401				.insert(data.stack_depth, data.stack_generation, e, result);402		}403		if let Err(mut err) = result {404			err.trace_mut().0.push(StackTraceElement {405				location: Some(e.clone()),406				desc: frame_desc(),407			});408			return Err(err);409		}410		result411	}412	/// Executes code creating a new stack frame413	pub fn push_description<T>(414		&self,415		frame_desc: impl FnOnce() -> String,416		f: impl FnOnce() -> Result<T>,417	) -> Result<T> {418		{419			let mut data = self.data_mut();420			let stack_depth = &mut data.stack_depth;421			if *stack_depth > self.max_stack() {422				// Error creation uses data, so i drop guard here423				drop(data);424				throw!(StackOverflow);425			} else {426				*stack_depth += 1;427			}428		}429		let result = f();430		{431			let mut data = self.data_mut();432			data.stack_depth -= 1;433			data.stack_generation += 1;434		}435		if let Err(mut err) = result {436			err.trace_mut().0.push(StackTraceElement {437				location: None,438				desc: frame_desc(),439			});440			return Err(err);441		}442		result443	}444445	/// Runs passed function in state (required if function needs to modify stack trace)446	pub fn run_in_state<T>(&self, f: impl FnOnce() -> T) -> T {447		EVAL_STATE.with(|v| {448			let has_state = v.borrow().is_some();449			if !has_state {450				v.borrow_mut().replace(self.clone());451			}452			let result = f();453			if !has_state {454				v.borrow_mut().take();455			}456			result457		})458	}459	pub fn run_in_state_with_breakpoint(460		&self,461		bp: Rc<Breakpoint>,462		f: impl FnOnce() -> Result<()>,463	) -> Result<()> {464		{465			let mut data = self.data_mut();466			data.breakpoints.0.push(bp);467		}468469		let result = self.run_in_state(f);470471		{472			let mut data = self.data_mut();473			data.breakpoints.0.pop();474		}475476		result477	}478479	pub fn stringify_err(&self, e: &LocError) -> String {480		let mut out = String::new();481		self.settings()482			.trace_format483			.write_trace(&mut out, self, e)484			.unwrap();485		out486	}487488	pub fn manifest(&self, val: Val) -> Result<IStr> {489		self.run_in_state(|| {490			push_description_frame(491				|| "manifestification".to_string(),492				|| val.manifest(&self.manifest_format()),493			)494		})495	}496	pub fn manifest_multi(&self, val: Val) -> Result<Vec<(IStr, IStr)>> {497		self.run_in_state(|| val.manifest_multi(&self.manifest_format()))498	}499	pub fn manifest_stream(&self, val: Val) -> Result<Vec<IStr>> {500		self.run_in_state(|| val.manifest_stream(&self.manifest_format()))501	}502503	/// If passed value is function then call with set TLA504	pub fn with_tla(&self, val: Val) -> Result<Val> {505		self.run_in_state(|| {506			Ok(match val {507				Val::Func(func) => push_description_frame(508					|| "during TLA call".to_owned(),509					|| {510						func.evaluate(511							self.create_default_context(),512							None,513							&self.settings().tla_vars,514							true,515						)516					},517				)?,518				v => v,519			})520		})521	}522}523524/// Internals525impl EvaluationState {526	fn data(&self) -> Ref<EvaluationData> {527		self.0.data.borrow()528	}529	fn data_mut(&self) -> RefMut<EvaluationData> {530		self.0.data.borrow_mut()531	}532	pub fn settings(&self) -> Ref<EvaluationSettings> {533		self.0.settings.borrow()534	}535	pub fn settings_mut(&self) -> RefMut<EvaluationSettings> {536		self.0.settings.borrow_mut()537	}538}539540/// Raw methods evaluate passed values but don't perform TLA execution541impl EvaluationState {542	pub fn evaluate_file_raw(&self, name: &Path) -> Result<Val> {543		self.run_in_state(|| self.import_file(&std::env::current_dir().expect("cwd"), name))544	}545	pub fn evaluate_file_raw_nocwd(&self, name: &Path) -> Result<Val> {546		self.run_in_state(|| self.import_file(&PathBuf::from("."), name))547	}548	/// Parses and evaluates the given snippet549	pub fn evaluate_snippet_raw(&self, source: Rc<Path>, code: IStr) -> Result<Val> {550		let parsed = parse(551			&code,552			&ParserSettings {553				file_name: source.clone(),554			},555		)556		.map_err(|e| ImportSyntaxError {557			path: source.clone(),558			source_code: code.clone(),559			error: Box::new(e),560		})?;561		self.add_parsed_file(source, code, parsed.clone())?;562		self.evaluate_expr_raw(parsed)563	}564	/// Evaluates the parsed expression565	pub fn evaluate_expr_raw(&self, code: LocExpr) -> Result<Val> {566		self.run_in_state(|| evaluate(self.create_default_context(), &code))567	}568}569570/// Settings utilities571impl EvaluationState {572	pub fn add_ext_var(&self, name: IStr, value: Val) {573		self.settings_mut().ext_vars.insert(name, value);574	}575	pub fn add_ext_str(&self, name: IStr, value: IStr) {576		self.add_ext_var(name, Val::Str(value));577	}578	pub fn add_ext_code(&self, name: IStr, code: IStr) -> Result<()> {579		let value =580			self.evaluate_snippet_raw(PathBuf::from(format!("ext_code {}", name)).into(), code)?;581		self.add_ext_var(name, value);582		Ok(())583	}584585	pub fn add_tla(&self, name: IStr, value: Val) {586		self.settings_mut()587			.tla_vars588			.insert(name, TlaArg::Val(value));589	}590	pub fn add_tla_str(&self, name: IStr, value: IStr) {591		self.settings_mut()592			.tla_vars593			.insert(name, TlaArg::String(value));594	}595	pub fn add_tla_code(&self, name: IStr, code: IStr) -> Result<()> {596		let parsed = self.add_file(PathBuf::from(format!("tla_code {}", name)).into(), code)?;597		self.settings_mut()598			.tla_vars599			.insert(name, TlaArg::Code(parsed));600		Ok(())601	}602603	pub fn resolve_file(&self, from: &Path, path: &Path) -> Result<Rc<Path>> {604		self.settings().import_resolver.resolve_file(from, path)605	}606	pub fn load_file_contents(&self, path: &Path) -> Result<IStr> {607		self.settings().import_resolver.load_file_contents(path)608	}609610	pub fn import_resolver(&self) -> Ref<dyn ImportResolver> {611		Ref::map(self.settings(), |s| &*s.import_resolver)612	}613	pub fn set_import_resolver(&self, resolver: Box<dyn ImportResolver>) {614		self.settings_mut().import_resolver = resolver;615	}616617	pub fn add_native(&self, name: IStr, cb: Cc<TraceBox<dyn Builtin>>) {618		self.settings_mut().ext_natives.insert(name, cb);619	}620621	pub fn manifest_format(&self) -> ManifestFormat {622		self.settings().manifest_format.clone()623	}624	pub fn set_manifest_format(&self, format: ManifestFormat) {625		self.settings_mut().manifest_format = format;626	}627628	pub fn trace_format(&self) -> Ref<dyn TraceFormat> {629		Ref::map(self.settings(), |s| &*s.trace_format)630	}631	pub fn set_trace_format(&self, format: Box<dyn TraceFormat>) {632		self.settings_mut().trace_format = format;633	}634635	pub fn max_trace(&self) -> usize {636		self.settings().max_trace637	}638	pub fn set_max_trace(&self, trace: usize) {639		self.settings_mut().max_trace = trace;640	}641642	pub fn max_stack(&self) -> usize {643		self.settings().max_stack644	}645	pub fn set_max_stack(&self, trace: usize) {646		self.settings_mut().max_stack = trace;647	}648}649650pub fn cc_ptr_eq<T>(a: &Cc<T>, b: &Cc<T>) -> bool {651	let a = a as &T;652	let b = b as &T;653	std::ptr::eq(a, b)654}655656#[cfg(test)]657pub mod tests {658	use super::Val;659	use crate::{660		error::Error::*, function::BuiltinParam, gc::TraceBox, native::NativeCallbackHandler,661		primitive_equals, EvaluationState,662	};663	use gcmodule::{Cc, Trace};664	use jrsonnet_interner::IStr;665	use jrsonnet_parser::*;666	use std::{667		path::{Path, PathBuf},668		rc::Rc,669	};670671	#[test]672	#[should_panic]673	fn eval_state_stacktrace() {674		let state = EvaluationState::default();675		state.run_in_state(|| {676			state677				.push(678					Some(&ExprLocation(PathBuf::from("test1.jsonnet").into(), 10, 20)),679					|| "outer".to_owned(),680					|| {681						state.push(682							Some(&ExprLocation(PathBuf::from("test2.jsonnet").into(), 30, 40)),683							|| "inner".to_owned(),684							|| Err(RuntimeError("".into()).into()),685						)?;686						Ok(Val::Null)687					},688				)689				.unwrap();690		});691	}692693	#[test]694	fn eval_state_standard() {695		let state = EvaluationState::default();696		state.with_stdlib();697		assert!(primitive_equals(698			&state699				.evaluate_snippet_raw(700					PathBuf::from("raw.jsonnet").into(),701					r#"std.assertEqual(std.base64("test"), "dGVzdA==")"#.into()702				)703				.unwrap(),704			&Val::Bool(true),705		)706		.unwrap());707	}708709	macro_rules! eval {710		($str: expr) => {711			EvaluationState::default()712				.with_stdlib()713				.evaluate_snippet_raw(PathBuf::from("raw.jsonnet").into(), $str.into())714				.unwrap()715		};716	}717	macro_rules! eval_json {718		($str: expr) => {{719			let evaluator = EvaluationState::default();720			evaluator.with_stdlib();721			evaluator.run_in_state(|| {722				evaluator723					.evaluate_snippet_raw(PathBuf::from("raw.jsonnet").into(), $str.into())724					.unwrap()725					.to_json(0)726					.unwrap()727					.replace("\n", "")728			})729		}};730	}731732	/// Asserts given code returns `true`733	macro_rules! assert_eval {734		($str: expr) => {735			assert!(primitive_equals(&eval!($str), &Val::Bool(true)).unwrap())736		};737	}738739	/// Asserts given code returns `false`740	macro_rules! assert_eval_neg {741		($str: expr) => {742			assert!(primitive_equals(&eval!($str), &Val::Bool(false)).unwrap())743		};744	}745	macro_rules! assert_json {746		($str: expr, $out: expr) => {747			assert_eq!(eval_json!($str), $out.replace("\t", ""))748		};749	}750751	/// Sanity checking, before trusting to another tests752	#[test]753	fn equality_operator() {754		assert_eval!("2 == 2");755		assert_eval_neg!("2 != 2");756		assert_eval!("2 != 3");757		assert_eval_neg!("2 == 3");758		assert_eval!("'Hello' == 'Hello'");759		assert_eval_neg!("'Hello' != 'Hello'");760		assert_eval!("'Hello' != 'World'");761		assert_eval_neg!("'Hello' == 'World'");762	}763764	#[test]765	fn math_evaluation() {766		assert_eval!("2 + 2 * 2 == 6");767		assert_eval!("3 + (2 + 2 * 2) == 9");768	}769770	#[test]771	fn string_concat() {772		assert_eval!("'Hello' + 'World' == 'HelloWorld'");773		assert_eval!("'Hello' * 3 == 'HelloHelloHello'");774		assert_eval!("'Hello' + 'World' * 3 == 'HelloWorldWorldWorld'");775	}776777	#[test]778	fn faster_join() {779		assert_eval!("std.join([0,0], [[1,2],[3,4],[5,6]]) == [1,2,0,0,3,4,0,0,5,6]");780		assert_eval!("std.join(',', ['1','2','3','4']) == '1,2,3,4'");781	}782783	#[test]784	fn function_contexts() {785		assert_eval!(786			r#"787				local k = {788					t(name = self.h): [self.h, name],789					h: 3,790				};791				local f = {792					t: k.t(),793					h: 4,794				};795				f.t[0] == f.t[1]796			"#797		);798	}799800	#[test]801	fn local() {802		assert_eval!("local a = 2; local b = 3; a + b == 5");803		assert_eval!("local a = 1, b = a + 1; a + b == 3");804		assert_eval!("local a = 1; local a = 2; a == 2");805	}806807	#[test]808	fn object_lazyness() {809		assert_json!("local a = {a:error 'test'}; {}", r#"{}"#);810	}811812	#[test]813	fn object_inheritance() {814		assert_json!("{a: self.b} + {b:3}", r#"{"a": 3,"b": 3}"#);815	}816817	#[test]818	fn object_assertion_success() {819		eval!("{assert \"a\" in self} + {a:2}");820	}821822	#[test]823	fn object_assertion_error() {824		eval!("{assert \"a\" in self}");825	}826827	#[test]828	fn lazy_args() {829		eval!("local test(a) = 2; test(error '3')");830	}831832	#[test]833	#[should_panic]834	fn tailstrict_args() {835		eval!("local test(a) = 2; test(error '3') tailstrict");836	}837838	#[test]839	#[should_panic]840	fn no_binding_error() {841		eval!("a");842	}843844	#[test]845	fn test_object() {846		assert_json!("{a:2}", r#"{"a": 2}"#);847		assert_json!("{a:2+2}", r#"{"a": 4}"#);848		assert_json!("{a:2}+{b:2}", r#"{"a": 2,"b": 2}"#);849		assert_json!("{b:3}+{b:2}", r#"{"b": 2}"#);850		assert_json!("{b:3}+{b+:2}", r#"{"b": 5}"#);851		assert_json!("local test='a'; {[test]:2}", r#"{"a": 2}"#);852		assert_json!(853			r#"854				{855					name: "Alice",856					welcome: "Hello " + self.name + "!",857				}858			"#,859			r#"{"name": "Alice","welcome": "Hello Alice!"}"#860		);861		assert_json!(862			r#"863				{864					name: "Alice",865					welcome: "Hello " + self.name + "!",866				} + {867					name: "Bob"868				}869			"#,870			r#"{"name": "Bob","welcome": "Hello Bob!"}"#871		);872	}873874	#[test]875	fn functions() {876		assert_json!(r#"local a = function(b, c = 2) b + c; a(2)"#, "4");877		assert_json!(878			r#"local a = function(b, c = "Dear") b + c + d, d = "World"; a("Hello")"#,879			r#""HelloDearWorld""#880		);881	}882883	#[test]884	fn local_methods() {885		assert_json!(r#"local a(b, c = 2) = b + c; a(2)"#, "4");886		assert_json!(887			r#"local a(b, c = "Dear") = b + c + d, d = "World"; a("Hello")"#,888			r#""HelloDearWorld""#889		);890	}891892	#[test]893	fn object_locals() {894		assert_json!(r#"{local a = 3, b: a}"#, r#"{"b": 3}"#);895		assert_json!(r#"{local a = 3, local c = a, b: c}"#, r#"{"b": 3}"#);896		assert_json!(897			r#"{local a = function (b) {[b]:4}, test: a("test")}"#,898			r#"{"test": {"test": 4}}"#899		);900	}901902	#[test]903	fn object_comp() {904		assert_json!(905			r#"{local t = "a", ["h"+i+"_"+z]: if "h"+(i-1)+"_"+z in self then t+1 else 0+t for i in [1,2,3] for z in [2,3,4] if z != i}"#,906			"{\"h1_2\": \"0a\",\"h1_3\": \"0a\",\"h1_4\": \"0a\",\"h2_3\": \"a1\",\"h2_4\": \"a1\",\"h3_2\": \"0a\",\"h3_4\": \"a1\"}"907		)908	}909910	#[test]911	fn direct_self() {912		println!(913			"{:#?}",914			eval!(915				r#"916					{917						local me = self,918						a: 3,919						b(): me.a,920					}921				"#922			)923		);924	}925926	#[test]927	fn indirect_self() {928		// `self` assigned to `me` was lost when being929		// referenced from field930		eval!(931			r#"{932				local me = self,933				a: 3,934				b: me.a,935			}.b"#936		);937	}938939	// We can't trust other tests (And official jsonnet testsuite), if assert is not working correctly940	#[test]941	fn std_assert_ok() {942		eval!("std.assertEqual(4.5 << 2, 16)");943	}944945	#[test]946	#[should_panic]947	fn std_assert_failure() {948		eval!("std.assertEqual(4.5 << 2, 15)");949	}950951	#[test]952	fn string_is_string() {953		assert!(primitive_equals(954			&eval!("local arr = 'hello'; (!std.isArray(arr)) && (!std.isString(arr))"),955			&Val::Bool(false),956		)957		.unwrap());958	}959960	#[test]961	fn base64_works() {962		assert_json!(r#"std.base64("test")"#, r#""dGVzdA==""#);963	}964965	#[test]966	fn utf8_chars() {967		assert_json!(968			r#"local c="😎";{c:std.codepoint(c),l:std.length(c)}"#,969			r#"{"c": 128526,"l": 1}"#970		)971	}972973	#[test]974	fn json() {975		assert_json!(976			r#"std.manifestJsonEx({a:3, b:4, c:6},"")"#,977			r#""{\n\"a\": 3,\n\"b\": 4,\n\"c\": 6\n}""#978		);979	}980981	#[test]982	fn json_minified() {983		assert_json!(984			r#"std.manifestJsonMinified({a:3, b:4, c:6})"#,985			r#""{\"a\":3,\"b\":4,\"c\":6}""#986		);987	}988989	#[test]990	fn parse_json() {991		assert_json!(992			r#"std.parseJson('{"a": -1,"b": 1,"c": 3.141,"d": []}')"#,993			r#"{"a": -1,"b": 1,"c": 3.141,"d": []}"#994		);995	}996997	#[test]998	fn test() {999		assert_json!(1000			r#"[[a, b] for a in [1,2,3] for b in [4,5,6]]"#,1001			"[[1,4],[1,5],[1,6],[2,4],[2,5],[2,6],[3,4],[3,5],[3,6]]"1002		);1003	}10041005	#[test]1006	fn sjsonnet() {1007		eval!(1008			r#"1009			local x0 = {k: 1};1010			local x1 = {k: x0.k + x0.k};1011			local x2 = {k: x1.k + x1.k};1012			local x3 = {k: x2.k + x2.k};1013			local x4 = {k: x3.k + x3.k};1014			local x5 = {k: x4.k + x4.k};1015			local x6 = {k: x5.k + x5.k};1016			local x7 = {k: x6.k + x6.k};1017			local x8 = {k: x7.k + x7.k};1018			local x9 = {k: x8.k + x8.k};1019			local x10 = {k: x9.k + x9.k};1020			local x11 = {k: x10.k + x10.k};1021			local x12 = {k: x11.k + x11.k};1022			local x13 = {k: x12.k + x12.k};1023			local x14 = {k: x13.k + x13.k};1024			local x15 = {k: x14.k + x14.k};1025			local x16 = {k: x15.k + x15.k};1026			local x17 = {k: x16.k + x16.k};1027			local x18 = {k: x17.k + x17.k};1028			local x19 = {k: x18.k + x18.k};1029			local x20 = {k: x19.k + x19.k};1030			local x21 = {k: x20.k + x20.k};1031			x21.k1032		"#1033		);1034	}10351036	// This test is commented out by default, because of huge compilation slowdown1037	// #[bench]1038	// fn bench_codegen(b: &mut Bencher) {1039	// 	b.iter(|| {1040	// 		#[allow(clippy::all)]1041	// 		let stdlib = {1042	// 			use jrsonnet_parser::*;1043	// 			include!(concat!(env!("OUT_DIR"), "/stdlib.rs"))1044	// 		};1045	// 		stdlib1046	// 	})1047	// }10481049	/*1050	#[bench]1051	fn bench_serialize(b: &mut Bencher) {1052		b.iter(|| {1053			bincode::deserialize::<jrsonnet_parser::LocExpr>(include_bytes!(concat!(1054				env!("OUT_DIR"),1055				"/stdlib.bincode"1056			)))1057			.expect("deserialize stdlib")1058		})1059	}10601061	#[bench]1062	fn bench_parse(b: &mut Bencher) {1063		b.iter(|| {1064			jrsonnet_parser::parse(1065				jrsonnet_stdlib::STDLIB_STR,1066				&jrsonnet_parser::ParserSettings {1067					loc_data: true,1068					file_name: Rc::new(PathBuf::from("std.jsonnet")),1069				},1070			)1071		})1072	}1073	*/10741075	#[test]1076	fn equality() {1077		println!(1078			"{:?}",1079			jrsonnet_parser::parse(1080				"{ x: 1, y: 2 } == { x: 1, y: 2 }",1081				&ParserSettings {1082					file_name: PathBuf::from("equality").into(),1083				}1084			)1085		);1086		assert_eval!("{ x: 1, y: 2 } == { x: 1, y: 2 }")1087	}10881089	#[test]1090	fn native_ext() -> crate::error::Result<()> {1091		use super::native::NativeCallback;1092		let evaluator = EvaluationState::default();10931094		evaluator.with_stdlib();10951096		#[derive(Trace)]1097		struct NativeAdd;1098		impl NativeCallbackHandler for NativeAdd {1099			fn call(&self, from: Option<Rc<Path>>, args: &[Val]) -> crate::error::Result<Val> {1100				assert_eq!(1101					&from.unwrap() as &Path,1102					&PathBuf::from("native_caller.jsonnet")1103				);1104				match (&args[0], &args[1]) {1105					(Val::Num(a), Val::Num(b)) => Ok(Val::Num(a + b)),1106					(_, _) => unreachable!(),1107				}1108			}1109		}1110		evaluator.settings_mut().ext_natives.insert(1111			"native_add".into(),1112			#[allow(deprecated)]1113			Cc::new(TraceBox(Box::new(NativeCallback::new(1114				vec![1115					BuiltinParam {1116						name: "a".into(),1117						has_default: false,1118					},1119					BuiltinParam {1120						name: "b".into(),1121						has_default: false,1122					},1123				],1124				TraceBox(Box::new(NativeAdd)),1125			)))),1126		);1127		evaluator.evaluate_snippet_raw(1128			PathBuf::from("native_caller.jsonnet").into(),1129			"std.assertEqual(std.native(\"native_add\")(1, 2), 3)".into(),1130		)?;1131		Ok(())1132	}11331134	#[test]1135	fn constant_intrinsic() -> crate::error::Result<()> {1136		assert_eval!(1137			"local std2 = std; local std = std2 { primitiveEquals(a, b):: false }; 1 == 1"1138		);1139		Ok(())1140	}11411142	#[test]1143	fn standalone_super() -> crate::error::Result<()> {1144		assert_eval!(1145			r#"1146			local obj = {1147				a: 1,1148				b: 2,1149				c: 3,1150			};1151			local test = obj + {1152				fields: std.objectFields(super),1153				d: 5,1154			};1155			test.fields == ['a', 'b', 'c']1156		"#1157		);1158		Ok(())1159	}11601161	#[test]1162	fn comp_self() -> crate::error::Result<()> {1163		assert_eval!(1164			r#"1165			std.objectFields({1166				a:{1167					[name]: name for name in std.objectFields(self)1168				},1169				b: 2,1170				c: 3,1171			}.a) == ['a', 'b', 'c']1172			"#1173		);11741175		Ok(())1176	}11771178	struct TestImportResolver(IStr);1179	impl crate::import::ImportResolver for TestImportResolver {1180		fn resolve_file(&self, _: &Path, _: &Path) -> crate::error::Result<Rc<Path>> {1181			Ok(PathBuf::from("/test").into())1182		}11831184		fn load_file_contents(&self, _: &Path) -> crate::error::Result<IStr> {1185			Ok(self.0.clone())1186		}11871188		unsafe fn as_any(&self) -> &dyn std::any::Any {1189			panic!()1190		}1191	}11921193	#[test]1194	fn issue_23() {1195		let state = EvaluationState::default();1196		state.set_import_resolver(Box::new(TestImportResolver(r#"import "/test""#.into())));1197		let _ = state.evaluate_file_raw(&PathBuf::from("/test"));1198	}11991200	#[test]1201	fn issue_40() {1202		let state = EvaluationState::default();1203		state.with_stdlib();12041205		let error = state1206			.evaluate_snippet_raw(1207				PathBuf::from("issue40.jsonnet").into(),1208				r#"1209				local conf = {1210					n: ""1211				};12121213				local result = conf + {1214					assert std.isNumber(self.n): "is number"1215				};12161217				std.manifestJsonEx(result, "")1218			"#1219				.into(),1220			)1221			.unwrap_err();1222		assert_eq!(error.error().to_string(), "assert failed: is number");1223	}12241225	#[test]1226	fn test_ascii_upper_lower() {1227		assert_eval!(r#"std.assertEqual(std.asciiUpper("aBc😀"), "ABC😀")"#);1228		assert_eval!(r#"std.assertEqual(std.asciiLower("aBc😀"), "abc😀")"#);1229	}12301231	#[test]1232	fn test_member() {1233		assert_eval!(r#"!std.member("", "")"#);1234		assert_eval!(r#"std.member("abc", "a")"#);1235		assert_eval!(r#"!std.member("abc", "d")"#);1236		assert_eval!(r#"!std.member([], "")"#);1237		assert_eval!(r#"std.member(["a", "b", "c"], "a")"#);1238		assert_eval!(r#"!std.member(["a", "b", "c"], "d")"#);1239	}12401241	#[test]1242	fn test_count() {1243		assert_eval!(r#"std.assertEqual(std.count([], ""), 0)"#);1244		assert_eval!(r#"std.assertEqual(std.count(["a", "b", "a"], "d"), 0)"#);1245		assert_eval!(r#"std.assertEqual(std.count(["a", "b", "a"], "a"), 2)"#);1246	}1247}