git.delta.rocks / jrsonnet / refs/commits / 90e93cc51b3a

1#![warn(clippy::all, clippy::nursery)]2#![allow(3	macro_expanded_macro_exports_accessed_by_absolute_paths,4	clippy::ptr_arg5)]67// For jrsonnet-macros8extern crate self as jrsonnet_evaluator;910mod builtin;11mod ctx;12mod dynamic;13pub mod error;14mod evaluate;15pub mod function;16pub mod gc;17mod import;18mod integrations;19mod map;20pub mod native;21mod obj;22pub mod trace;23pub mod typed;24pub mod val;2526use std::{27	cell::{Ref, RefCell, RefMut},28	collections::HashMap,29	fmt::Debug,30	path::{Path, PathBuf},31	rc::Rc,32};3334pub use ctx::*;35pub use dynamic::*;36use error::{Error::*, LocError, Result, StackTraceElement};37pub use evaluate::*;38use function::{Builtin, CallLocation, TlaArg};39use gc::{GcHashMap, TraceBox};40use gcmodule::{Cc, Trace, Weak};41pub use import::*;42pub use jrsonnet_interner::IStr;43pub use jrsonnet_parser as parser;44use jrsonnet_parser::*;45pub use obj::*;46use trace::{location_to_offset, offset_to_location, CodeLocation, CompactFormat, TraceFormat};47pub use val::{LazyVal, ManifestFormat, Val};4849pub trait Bindable: Trace + 'static {50	fn bind(&self, this: Option<ObjValue>, super_obj: Option<ObjValue>) -> Result<LazyVal>;51}5253#[derive(Clone, Trace)]54pub enum LazyBinding {55	Bindable(Cc<TraceBox<dyn Bindable>>),56	Bound(LazyVal),57}5859impl Debug for LazyBinding {60	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {61		write!(f, "LazyBinding")62	}63}64impl LazyBinding {65	pub fn evaluate(&self, this: Option<ObjValue>, super_obj: Option<ObjValue>) -> Result<LazyVal> {66		match self {67			Self::Bindable(v) => v.bind(this, super_obj),68			Self::Bound(v) => Ok(v.clone()),69		}70	}71}7273pub struct EvaluationSettings {74	/// Limits recursion by limiting the number of stack frames75	pub max_stack: usize,76	/// Limits amount of stack trace items preserved77	pub max_trace: usize,78	/// Used for s`td.extVar`79	pub ext_vars: HashMap<IStr, Val>,80	/// Used for ext.native81	pub ext_natives: HashMap<IStr, Cc<TraceBox<dyn Builtin>>>,82	/// TLA vars83	pub tla_vars: HashMap<IStr, TlaArg>,84	/// Global variables are inserted in default context85	pub globals: HashMap<IStr, Val>,86	/// Used to resolve file locations/contents87	pub import_resolver: Box<dyn ImportResolver>,88	/// Used in manifestification functions89	pub manifest_format: ManifestFormat,90	/// Used for bindings91	pub trace_format: Box<dyn TraceFormat>,92}93impl Default for EvaluationSettings {94	fn default() -> Self {95		Self {96			max_stack: 200,97			max_trace: 20,98			globals: Default::default(),99			ext_vars: Default::default(),100			ext_natives: Default::default(),101			tla_vars: Default::default(),102			import_resolver: Box::new(DummyImportResolver),103			manifest_format: ManifestFormat::Json(4),104			trace_format: Box::new(CompactFormat {105				padding: 4,106				resolver: trace::PathResolver::Absolute,107			}),108		}109	}110}111112#[derive(Default)]113struct EvaluationData {114	/// Used for stack overflow detection, stacktrace is populated on unwind115	stack_depth: usize,116	/// Updated every time stack entry is popt117	stack_generation: usize,118119	breakpoints: Breakpoints,120	/// Contains file source codes and evaluation results for imports and pretty-printed stacktraces121	files: GcHashMap<Rc<Path>, FileData>,122	str_files: GcHashMap<Rc<Path>, IStr>,123	bin_files: GcHashMap<Rc<Path>, Rc<[u8]>>,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}177178pub(crate) fn with_state<T>(f: impl FnOnce(&EvaluationState) -> T) -> T {179	EVAL_STATE.with(|s| {180		f(s.borrow().as_ref().expect(181			"missing evaluation state, some functions should be called inside of run_in_state call",182		))183	})184}185pub fn push_frame<T>(186	e: CallLocation,187	frame_desc: impl FnOnce() -> String,188	f: impl FnOnce() -> Result<T>,189) -> Result<T> {190	with_state(|s| s.push(e, frame_desc, f))191}192193#[allow(dead_code)]194pub fn push_val_frame(195	e: &ExprLocation,196	frame_desc: impl FnOnce() -> String,197	f: impl FnOnce() -> Result<Val>,198) -> Result<Val> {199	with_state(|s| s.push_val(e, frame_desc, f))200}201#[allow(dead_code)]202pub fn push_description_frame<T>(203	frame_desc: impl FnOnce() -> String,204	f: impl FnOnce() -> Result<T>,205) -> Result<T> {206	with_state(|s| s.push_description(frame_desc, f))207}208209/// Maintains stack trace and import resolution210#[derive(Default, Clone)]211pub struct EvaluationState(Rc<EvaluationStateInternals>);212213impl EvaluationState {214	/// Parses and adds file as loaded215	pub fn add_file(&self, path: Rc<Path>, source_code: IStr) -> Result<LocExpr> {216		let parsed = parse(217			&source_code,218			&ParserSettings {219				file_name: path.clone(),220			},221		)222		.map_err(|error| ImportSyntaxError {223			error: Box::new(error),224			path: path.to_owned(),225			source_code: source_code.clone(),226		})?;227		self.add_parsed_file(path, source_code, parsed.clone())?;228229		Ok(parsed)230	}231232	pub fn reset_evaluation_state(&self, name: &Path) {233		self.data_mut()234			.files235			.get_mut(name)236			.unwrap()237			.evaluated238			.take();239	}240241	/// Adds file by source code and parsed expr242	pub fn add_parsed_file(243		&self,244		name: Rc<Path>,245		source_code: IStr,246		parsed: LocExpr,247	) -> Result<()> {248		self.data_mut().files.insert(249			name,250			FileData {251				source_code,252				parsed,253				evaluated: None,254			},255		);256257		Ok(())258	}259	pub fn get_source(&self, name: &Path) -> Option<IStr> {260		let ro_map = &self.data().files;261		ro_map.get(name).map(|value| value.source_code.clone())262	}263	pub fn map_source_locations(&self, file: &Path, locs: &[usize]) -> Vec<CodeLocation> {264		offset_to_location(&self.get_source(file).unwrap_or_else(|| "".into()), locs)265	}266	pub fn map_from_source_location(267		&self,268		file: &Path,269		line: usize,270		column: usize,271	) -> Option<usize> {272		location_to_offset(&self.get_source(file).unwrap(), line, column)273	}274	pub fn import_file(&self, from: &Path, path: &Path) -> Result<Val> {275		let file_path = self.resolve_file(from, path)?;276		{277			let data = self.data();278			let files = &data.files;279			if files.contains_key(&file_path as &Path) {280				drop(data);281				return self.evaluate_loaded_file_raw(&file_path);282			}283		}284		let contents = self.load_file_str(&file_path)?;285		self.add_file(file_path.clone(), contents)?;286		self.evaluate_loaded_file_raw(&file_path)287	}288	pub(crate) fn import_file_str(&self, from: &Path, path: &Path) -> Result<IStr> {289		let path = self.resolve_file(from, path)?;290		if !self.data().str_files.contains_key(&path) {291			let file_str = self.load_file_str(&path)?;292			self.data_mut().str_files.insert(path.clone(), file_str);293		}294		Ok(self.data().str_files.get(&path).cloned().unwrap())295	}296	pub(crate) fn import_file_bin(&self, from: &Path, path: &Path) -> Result<Rc<[u8]>> {297		let path = self.resolve_file(from, path)?;298		if !self.data().bin_files.contains_key(&path) {299			let file_bin = self.load_file_bin(&path)?;300			self.data_mut().bin_files.insert(path.clone(), file_bin);301		}302		Ok(self.data().bin_files.get(&path).cloned().unwrap())303	}304305	fn evaluate_loaded_file_raw(&self, name: &Path) -> Result<Val> {306		let expr: LocExpr = {307			let ro_map = &self.data().files;308			let value = ro_map309				.get(name)310				.unwrap_or_else(|| panic!("file not added: {:?}", name));311			if let Some(ref evaluated) = value.evaluated {312				return Ok(evaluated.clone());313			}314			value.parsed.clone()315		};316		let value = evaluate(self.create_default_context(), &expr)?;317		{318			self.data_mut()319				.files320				.get_mut(name)321				.unwrap()322				.evaluated323				.replace(value.clone());324		}325		Ok(value)326	}327328	/// Adds standard library global variable (std) to this evaluator329	pub fn with_stdlib(&self) -> &Self {330		use jrsonnet_stdlib::STDLIB_STR;331		let std_path: Rc<Path> = PathBuf::from("std.jsonnet").into();332		self.run_in_state(|| {333			self.add_parsed_file(334				std_path.clone(),335				STDLIB_STR.to_owned().into(),336				builtin::get_parsed_stdlib(),337			)338			.unwrap();339			let val = self.evaluate_loaded_file_raw(&std_path).unwrap();340			self.settings_mut().globals.insert("std".into(), val);341		});342		self343	}344345	/// Creates context with all passed global variables346	pub fn create_default_context(&self) -> Context {347		let globals = &self.settings().globals;348		let mut new_bindings = GcHashMap::with_capacity(globals.len());349		for (name, value) in globals.iter() {350			new_bindings.insert(name.clone(), LazyVal::new_resolved(value.clone()));351		}352		Context::new().extend_bound(new_bindings)353	}354355	/// Executes code creating a new stack frame356	pub fn push<T>(357		&self,358		e: CallLocation,359		frame_desc: impl FnOnce() -> String,360		f: impl FnOnce() -> Result<T>,361	) -> Result<T> {362		{363			let mut data = self.data_mut();364			let stack_depth = &mut data.stack_depth;365			if *stack_depth > self.max_stack() {366				// Error creation uses data, so i drop guard here367				drop(data);368				throw!(StackOverflow);369			} else {370				*stack_depth += 1;371			}372		}373		let result = f();374		{375			let mut data = self.data_mut();376			data.stack_depth -= 1;377			data.stack_generation += 1;378		}379		if let Err(mut err) = result {380			err.trace_mut().0.push(StackTraceElement {381				location: e.0.cloned(),382				desc: frame_desc(),383			});384			return Err(err);385		}386		result387	}388389	/// Executes code creating a new stack frame390	pub fn push_val(391		&self,392		e: &ExprLocation,393		frame_desc: impl FnOnce() -> String,394		f: impl FnOnce() -> Result<Val>,395	) -> Result<Val> {396		{397			let mut data = self.data_mut();398			let stack_depth = &mut data.stack_depth;399			if *stack_depth > self.max_stack() {400				// Error creation uses data, so i drop guard here401				drop(data);402				throw!(StackOverflow);403			} else {404				*stack_depth += 1;405			}406		}407		let mut result = f();408		{409			let mut data = self.data_mut();410			data.stack_depth -= 1;411			data.stack_generation += 1;412			result = data413				.breakpoints414				.insert(data.stack_depth, data.stack_generation, e, result);415		}416		if let Err(mut err) = result {417			err.trace_mut().0.push(StackTraceElement {418				location: Some(e.clone()),419				desc: frame_desc(),420			});421			return Err(err);422		}423		result424	}425	/// Executes code creating a new stack frame426	pub fn push_description<T>(427		&self,428		frame_desc: impl FnOnce() -> String,429		f: impl FnOnce() -> Result<T>,430	) -> Result<T> {431		{432			let mut data = self.data_mut();433			let stack_depth = &mut data.stack_depth;434			if *stack_depth > self.max_stack() {435				// Error creation uses data, so i drop guard here436				drop(data);437				throw!(StackOverflow);438			} else {439				*stack_depth += 1;440			}441		}442		let result = f();443		{444			let mut data = self.data_mut();445			data.stack_depth -= 1;446			data.stack_generation += 1;447		}448		if let Err(mut err) = result {449			err.trace_mut().0.push(StackTraceElement {450				location: None,451				desc: frame_desc(),452			});453			return Err(err);454		}455		result456	}457458	/// Runs passed function in state (required if function needs to modify stack trace)459	pub fn run_in_state<T>(&self, f: impl FnOnce() -> T) -> T {460		EVAL_STATE.with(|v| {461			let has_state = v.borrow().is_some();462			if !has_state {463				v.borrow_mut().replace(self.clone());464			}465			let result = f();466			if !has_state {467				v.borrow_mut().take();468			}469			result470		})471	}472	pub fn run_in_state_with_breakpoint(473		&self,474		bp: Rc<Breakpoint>,475		f: impl FnOnce() -> Result<()>,476	) -> Result<()> {477		{478			let mut data = self.data_mut();479			data.breakpoints.0.push(bp);480		}481482		let result = self.run_in_state(f);483484		{485			let mut data = self.data_mut();486			data.breakpoints.0.pop();487		}488489		result490	}491492	pub fn stringify_err(&self, e: &LocError) -> String {493		let mut out = String::new();494		self.settings()495			.trace_format496			.write_trace(&mut out, self, e)497			.unwrap();498		out499	}500501	pub fn manifest(&self, val: Val) -> Result<IStr> {502		self.run_in_state(|| {503			push_description_frame(504				|| "manifestification".to_string(),505				|| val.manifest(&self.manifest_format()),506			)507		})508	}509	pub fn manifest_multi(&self, val: Val) -> Result<Vec<(IStr, IStr)>> {510		self.run_in_state(|| val.manifest_multi(&self.manifest_format()))511	}512	pub fn manifest_stream(&self, val: Val) -> Result<Vec<IStr>> {513		self.run_in_state(|| val.manifest_stream(&self.manifest_format()))514	}515516	/// If passed value is function then call with set TLA517	pub fn with_tla(&self, val: Val) -> Result<Val> {518		self.run_in_state(|| {519			Ok(match val {520				Val::Func(func) => push_description_frame(521					|| "during TLA call".to_owned(),522					|| {523						func.evaluate(524							self.create_default_context(),525							CallLocation::native(),526							&self.settings().tla_vars,527							true,528						)529					},530				)?,531				v => v,532			})533		})534	}535}536537/// Internals538impl EvaluationState {539	fn data(&self) -> Ref<EvaluationData> {540		self.0.data.borrow()541	}542	fn data_mut(&self) -> RefMut<EvaluationData> {543		self.0.data.borrow_mut()544	}545	pub fn settings(&self) -> Ref<EvaluationSettings> {546		self.0.settings.borrow()547	}548	pub fn settings_mut(&self) -> RefMut<EvaluationSettings> {549		self.0.settings.borrow_mut()550	}551}552553/// Raw methods evaluate passed values but don't perform TLA execution554impl EvaluationState {555	pub fn evaluate_file_raw(&self, name: &Path) -> Result<Val> {556		self.run_in_state(|| self.import_file(&std::env::current_dir().expect("cwd"), name))557	}558	pub fn evaluate_file_raw_nocwd(&self, name: &Path) -> Result<Val> {559		self.run_in_state(|| self.import_file(&PathBuf::from("."), name))560	}561	/// Parses and evaluates the given snippet562	pub fn evaluate_snippet_raw(&self, source: Rc<Path>, code: IStr) -> Result<Val> {563		let parsed = parse(564			&code,565			&ParserSettings {566				file_name: source.clone(),567			},568		)569		.map_err(|e| ImportSyntaxError {570			path: source.clone(),571			source_code: code.clone(),572			error: Box::new(e),573		})?;574		self.add_parsed_file(source, code, parsed.clone())?;575		self.evaluate_expr_raw(parsed)576	}577	/// Evaluates the parsed expression578	pub fn evaluate_expr_raw(&self, code: LocExpr) -> Result<Val> {579		self.run_in_state(|| evaluate(self.create_default_context(), &code))580	}581}582583/// Settings utilities584impl EvaluationState {585	pub fn add_ext_var(&self, name: IStr, value: Val) {586		self.settings_mut().ext_vars.insert(name, value);587	}588	pub fn add_ext_str(&self, name: IStr, value: IStr) {589		self.add_ext_var(name, Val::Str(value));590	}591	pub fn add_ext_code(&self, name: IStr, code: IStr) -> Result<()> {592		let value =593			self.evaluate_snippet_raw(PathBuf::from(format!("ext_code {}", name)).into(), code)?;594		self.add_ext_var(name, value);595		Ok(())596	}597598	pub fn add_tla(&self, name: IStr, value: Val) {599		self.settings_mut()600			.tla_vars601			.insert(name, TlaArg::Val(value));602	}603	pub fn add_tla_str(&self, name: IStr, value: IStr) {604		self.settings_mut()605			.tla_vars606			.insert(name, TlaArg::String(value));607	}608	pub fn add_tla_code(&self, name: IStr, code: IStr) -> Result<()> {609		let parsed = self.add_file(PathBuf::from(format!("tla_code {}", name)).into(), code)?;610		self.settings_mut()611			.tla_vars612			.insert(name, TlaArg::Code(parsed));613		Ok(())614	}615616	pub fn resolve_file(&self, from: &Path, path: &Path) -> Result<Rc<Path>> {617		self.settings().import_resolver.resolve_file(from, path)618	}619	pub fn load_file_str(&self, path: &Path) -> Result<IStr> {620		self.settings().import_resolver.load_file_str(path)621	}622	pub fn load_file_bin(&self, path: &Path) -> Result<Rc<[u8]>> {623		self.settings().import_resolver.load_file_bin(path)624	}625626	pub fn import_resolver(&self) -> Ref<dyn ImportResolver> {627		Ref::map(self.settings(), |s| &*s.import_resolver)628	}629	pub fn set_import_resolver(&self, resolver: Box<dyn ImportResolver>) {630		self.settings_mut().import_resolver = resolver;631	}632633	pub fn add_native(&self, name: IStr, cb: Cc<TraceBox<dyn Builtin>>) {634		self.settings_mut().ext_natives.insert(name, cb);635	}636637	pub fn manifest_format(&self) -> ManifestFormat {638		self.settings().manifest_format.clone()639	}640	pub fn set_manifest_format(&self, format: ManifestFormat) {641		self.settings_mut().manifest_format = format;642	}643644	pub fn trace_format(&self) -> Ref<dyn TraceFormat> {645		Ref::map(self.settings(), |s| &*s.trace_format)646	}647	pub fn set_trace_format(&self, format: Box<dyn TraceFormat>) {648		self.settings_mut().trace_format = format;649	}650651	pub fn max_trace(&self) -> usize {652		self.settings().max_trace653	}654	pub fn set_max_trace(&self, trace: usize) {655		self.settings_mut().max_trace = trace;656	}657658	pub fn max_stack(&self) -> usize {659		self.settings().max_stack660	}661	pub fn set_max_stack(&self, trace: usize) {662		self.settings_mut().max_stack = trace;663	}664}665666pub fn cc_ptr_eq<T>(a: &Cc<T>, b: &Cc<T>) -> bool {667	let a = a as &T;668	let b = b as &T;669	std::ptr::eq(a, b)670}671672fn weak_raw<T>(a: Weak<T>) -> *const () {673	unsafe { std::mem::transmute(a) }674}675fn weak_ptr_eq<T>(a: Weak<T>, b: Weak<T>) -> bool {676	std::ptr::eq(weak_raw(a), weak_raw(b))677}678679#[test]680fn weak_unsafe() {681	let a = Cc::new(1);682	let b = Cc::new(2);683684	let aw1 = a.clone().downgrade();685	let aw2 = a.clone().downgrade();686	let aw3 = a.clone().downgrade();687688	let bw = b.clone().downgrade();689690	assert!(weak_ptr_eq(aw1, aw2));691	assert!(!weak_ptr_eq(aw3, bw));692}693694#[cfg(test)]695pub mod tests {696	use std::{697		path::{Path, PathBuf},698		rc::Rc,699	};700701	use gcmodule::{Cc, Trace};702	use jrsonnet_parser::*;703704	use super::Val;705	use crate::{706		error::Error::*,707		function::{BuiltinParam, CallLocation},708		gc::TraceBox,709		native::NativeCallbackHandler,710		val::primitive_equals,711		EvaluationState,712	};713714	#[test]715	#[should_panic]716	fn eval_state_stacktrace() {717		let state = EvaluationState::default();718		state.run_in_state(|| {719			state720				.push(721					CallLocation::new(&ExprLocation(PathBuf::from("test1.jsonnet").into(), 10, 20)),722					|| "outer".to_owned(),723					|| {724						state.push(725							CallLocation::new(&ExprLocation(726								PathBuf::from("test2.jsonnet").into(),727								30,728								40,729							)),730							|| "inner".to_owned(),731							|| Err(RuntimeError("".into()).into()),732						)?;733						Ok(Val::Null)734					},735				)736				.unwrap();737		});738	}739740	#[test]741	fn eval_state_standard() {742		let state = EvaluationState::default();743		state.with_stdlib();744		assert!(primitive_equals(745			&state746				.evaluate_snippet_raw(747					PathBuf::from("raw.jsonnet").into(),748					r#"std.assertEqual(std.base64("test"), "dGVzdA==")"#.into()749				)750				.unwrap(),751			&Val::Bool(true),752		)753		.unwrap());754	}755756	macro_rules! eval {757		($str: expr) => {{758			let evaluator = EvaluationState::default();759			evaluator.with_stdlib();760			evaluator.run_in_state(|| {761				evaluator762					.evaluate_snippet_raw(PathBuf::from("raw.jsonnet").into(), $str.into())763					.unwrap()764			})765		}};766	}767	macro_rules! eval_json {768		($str: expr) => {{769			let evaluator = EvaluationState::default();770			evaluator.with_stdlib();771			evaluator.run_in_state(|| {772				evaluator773					.evaluate_snippet_raw(PathBuf::from("raw.jsonnet").into(), $str.into())774					.unwrap()775					.to_json(0)776					.unwrap()777					.replace("\n", "")778			})779		}};780	}781782	/// Asserts given code returns `true`783	macro_rules! assert_eval {784		($str: expr) => {785			assert!(primitive_equals(&eval!($str), &Val::Bool(true)).unwrap())786		};787	}788789	/// Asserts given code returns `false`790	macro_rules! assert_eval_neg {791		($str: expr) => {792			assert!(primitive_equals(&eval!($str), &Val::Bool(false)).unwrap())793		};794	}795	macro_rules! assert_json {796		($str: expr, $out: expr) => {797			assert_eq!(eval_json!($str), $out.replace("\t", ""))798		};799	}800801	/// Sanity checking, before trusting to another tests802	#[test]803	fn equality_operator() {804		assert_eval!("2 == 2");805		assert_eval_neg!("2 != 2");806		assert_eval!("2 != 3");807		assert_eval_neg!("2 == 3");808		assert_eval!("'Hello' == 'Hello'");809		assert_eval_neg!("'Hello' != 'Hello'");810		assert_eval!("'Hello' != 'World'");811		assert_eval_neg!("'Hello' == 'World'");812	}813814	#[test]815	fn math_evaluation() {816		assert_eval!("2 + 2 * 2 == 6");817		assert_eval!("3 + (2 + 2 * 2) == 9");818	}819820	#[test]821	fn string_concat() {822		assert_eval!("'Hello' + 'World' == 'HelloWorld'");823		assert_eval!("'Hello' * 3 == 'HelloHelloHello'");824		assert_eval!("'Hello' + 'World' * 3 == 'HelloWorldWorldWorld'");825	}826827	#[test]828	fn faster_join() {829		assert_eval!("std.join([0,0], [[1,2],[3,4],[5,6]]) == [1,2,0,0,3,4,0,0,5,6]");830		assert_eval!("std.join(',', ['1','2','3','4']) == '1,2,3,4'");831	}832833	#[test]834	fn function_contexts() {835		assert_eval!(836			r#"837				local k = {838					t(name = self.h): [self.h, name],839					h: 3,840				};841				local f = {842					t: k.t(),843					h: 4,844				};845				f.t[0] == f.t[1]846			"#847		);848	}849850	#[test]851	fn local() {852		assert_eval!("local a = 2; local b = 3; a + b == 5");853		assert_eval!("local a = 1, b = a + 1; a + b == 3");854		assert_eval!("local a = 1; local a = 2; a == 2");855	}856857	#[test]858	fn object_lazyness() {859		assert_json!("local a = {a:error 'test'}; {}", r#"{}"#);860	}861862	#[test]863	fn object_inheritance() {864		assert_json!("{a: self.b} + {b:3}", r#"{"a": 3,"b": 3}"#);865	}866867	#[test]868	fn object_assertion_success() {869		eval!("{assert \"a\" in self} + {a:2}");870	}871872	#[test]873	fn object_assertion_error() {874		eval!("{assert \"a\" in self}");875	}876877	#[test]878	fn lazy_args() {879		eval!("local test(a) = 2; test(error '3')");880	}881882	#[test]883	#[should_panic]884	fn tailstrict_args() {885		eval!("local test(a) = 2; test(error '3') tailstrict");886	}887888	#[test]889	#[should_panic]890	fn no_binding_error() {891		eval!("a");892	}893894	#[test]895	fn test_object() {896		assert_json!("{a:2}", r#"{"a": 2}"#);897		assert_json!("{a:2+2}", r#"{"a": 4}"#);898		assert_json!("{a:2}+{b:2}", r#"{"a": 2,"b": 2}"#);899		assert_json!("{b:3}+{b:2}", r#"{"b": 2}"#);900		assert_json!("{b:3}+{b+:2}", r#"{"b": 5}"#);901		assert_json!("local test='a'; {[test]:2}", r#"{"a": 2}"#);902		assert_json!(903			r#"904				{905					name: "Alice",906					welcome: "Hello " + self.name + "!",907				}908			"#,909			r#"{"name": "Alice","welcome": "Hello Alice!"}"#910		);911		assert_json!(912			r#"913				{914					name: "Alice",915					welcome: "Hello " + self.name + "!",916				} + {917					name: "Bob"918				}919			"#,920			r#"{"name": "Bob","welcome": "Hello Bob!"}"#921		);922	}923924	#[test]925	fn functions() {926		assert_json!(r#"local a = function(b, c = 2) b + c; a(2)"#, "4");927		assert_json!(928			r#"local a = function(b, c = "Dear") b + c + d, d = "World"; a("Hello")"#,929			r#""HelloDearWorld""#930		);931	}932933	#[test]934	fn local_methods() {935		assert_json!(r#"local a(b, c = 2) = b + c; a(2)"#, "4");936		assert_json!(937			r#"local a(b, c = "Dear") = b + c + d, d = "World"; a("Hello")"#,938			r#""HelloDearWorld""#939		);940	}941942	#[test]943	fn object_locals() {944		assert_json!(r#"{local a = 3, b: a}"#, r#"{"b": 3}"#);945		assert_json!(r#"{local a = 3, local c = a, b: c}"#, r#"{"b": 3}"#);946		assert_json!(947			r#"{local a = function (b) {[b]:4}, test: a("test")}"#,948			r#"{"test": {"test": 4}}"#949		);950	}951952	#[test]953	fn object_comp() {954		assert_json!(955			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}"#,956			"{\"h1_2\": \"0a\",\"h1_3\": \"0a\",\"h1_4\": \"0a\",\"h2_3\": \"a1\",\"h2_4\": \"a1\",\"h3_2\": \"0a\",\"h3_4\": \"a1\"}"957		)958	}959960	#[test]961	fn direct_self() {962		println!(963			"{:#?}",964			eval!(965				r#"966					{967						local me = self,968						a: 3,969						b(): me.a,970					}971				"#972			)973		);974	}975976	#[test]977	fn indirect_self() {978		// `self` assigned to `me` was lost when being979		// referenced from field980		eval!(981			r#"{982				local me = self,983				a: 3,984				b: me.a,985			}.b"#986		);987	}988989	// We can't trust other tests (And official jsonnet testsuite), if assert is not working correctly990	#[test]991	fn std_assert_ok() {992		eval!("std.assertEqual(4.5 << 2, 16)");993	}994995	#[test]996	#[should_panic]997	fn std_assert_failure() {998		eval!("std.assertEqual(4.5 << 2, 15)");999	}10001001	#[test]1002	fn string_is_string() {1003		assert!(primitive_equals(1004			&eval!("local arr = 'hello'; (!std.isArray(arr)) && (!std.isString(arr))"),1005			&Val::Bool(false),1006		)1007		.unwrap());1008	}10091010	#[test]1011	fn base64_works() {1012		assert_json!(r#"std.base64("test")"#, r#""dGVzdA==""#);1013	}10141015	#[test]1016	fn utf8_chars() {1017		assert_json!(1018			r#"local c="😎";{c:std.codepoint(c),l:std.length(c)}"#,1019			r#"{"c": 128526,"l": 1}"#1020		)1021	}10221023	#[test]1024	fn json() {1025		assert_json!(1026			r#"std.manifestJsonEx({a:3, b:4, c:6},"")"#,1027			r#""{\n\"a\": 3,\n\"b\": 4,\n\"c\": 6\n}""#1028		);1029	}10301031	#[test]1032	fn json_minified() {1033		assert_json!(1034			r#"std.manifestJsonMinified({a:3, b:4, c:6})"#,1035			r#""{\"a\":3,\"b\":4,\"c\":6}""#1036		);1037	}10381039	#[test]1040	fn parse_json() {1041		assert_json!(1042			r#"std.parseJson('{"a": -1,"b": 1,"c": 3.141,"d": []}')"#,1043			r#"{"a": -1,"b": 1,"c": 3.141,"d": []}"#1044		);1045	}10461047	#[test]1048	fn test() {1049		assert_json!(1050			r#"[[a, b] for a in [1,2,3] for b in [4,5,6]]"#,1051			"[[1,4],[1,5],[1,6],[2,4],[2,5],[2,6],[3,4],[3,5],[3,6]]"1052		);1053	}10541055	#[test]1056	fn sjsonnet() {1057		eval!(1058			r#"1059			local x0 = {k: 1};1060			local x1 = {k: x0.k + x0.k};1061			local x2 = {k: x1.k + x1.k};1062			local x3 = {k: x2.k + x2.k};1063			local x4 = {k: x3.k + x3.k};1064			local x5 = {k: x4.k + x4.k};1065			local x6 = {k: x5.k + x5.k};1066			local x7 = {k: x6.k + x6.k};1067			local x8 = {k: x7.k + x7.k};1068			local x9 = {k: x8.k + x8.k};1069			local x10 = {k: x9.k + x9.k};1070			local x11 = {k: x10.k + x10.k};1071			local x12 = {k: x11.k + x11.k};1072			local x13 = {k: x12.k + x12.k};1073			local x14 = {k: x13.k + x13.k};1074			local x15 = {k: x14.k + x14.k};1075			local x16 = {k: x15.k + x15.k};1076			local x17 = {k: x16.k + x16.k};1077			local x18 = {k: x17.k + x17.k};1078			local x19 = {k: x18.k + x18.k};1079			local x20 = {k: x19.k + x19.k};1080			local x21 = {k: x20.k + x20.k};1081			x21.k1082		"#1083		);1084	}10851086	// This test is commented out by default, because of huge compilation slowdown1087	// #[bench]1088	// fn bench_codegen(b: &mut Bencher) {1089	// 	b.iter(|| {1090	// 		#[allow(clippy::all)]1091	// 		let stdlib = {1092	// 			use jrsonnet_parser::*;1093	// 			include!(concat!(env!("OUT_DIR"), "/stdlib.rs"))1094	// 		};1095	// 		stdlib1096	// 	})1097	// }10981099	/*1100	#[bench]1101	fn bench_serialize(b: &mut Bencher) {1102		b.iter(|| {1103			bincode::deserialize::<jrsonnet_parser::LocExpr>(include_bytes!(concat!(1104				env!("OUT_DIR"),1105				"/stdlib.bincode"1106			)))1107			.expect("deserialize stdlib")1108		})1109	}11101111	#[bench]1112	fn bench_parse(b: &mut Bencher) {1113		b.iter(|| {1114			jrsonnet_parser::parse(1115				jrsonnet_stdlib::STDLIB_STR,1116				&jrsonnet_parser::ParserSettings {1117					loc_data: true,1118					file_name: Rc::new(PathBuf::from("std.jsonnet")),1119				},1120			)1121		})1122	}1123	*/11241125	#[test]1126	fn equality() {1127		println!(1128			"{:?}",1129			jrsonnet_parser::parse(1130				"{ x: 1, y: 2 } == { x: 1, y: 2 }",1131				&ParserSettings {1132					file_name: PathBuf::from("equality").into(),1133				}1134			)1135		);1136		assert_eval!("{ x: 1, y: 2 } == { x: 1, y: 2 }")1137	}11381139	#[test]1140	fn native_ext() -> crate::error::Result<()> {1141		use super::native::NativeCallback;1142		let evaluator = EvaluationState::default();11431144		evaluator.with_stdlib();11451146		#[derive(Trace)]1147		struct NativeAdd;1148		impl NativeCallbackHandler for NativeAdd {1149			fn call(&self, from: Option<Rc<Path>>, args: &[Val]) -> crate::error::Result<Val> {1150				assert_eq!(1151					&from.unwrap() as &Path,1152					&PathBuf::from("native_caller.jsonnet")1153				);1154				match (&args[0], &args[1]) {1155					(Val::Num(a), Val::Num(b)) => Ok(Val::Num(a + b)),1156					(_, _) => unreachable!(),1157				}1158			}1159		}1160		evaluator.settings_mut().ext_natives.insert(1161			"native_add".into(),1162			#[allow(deprecated)]1163			Cc::new(TraceBox(Box::new(NativeCallback::new(1164				vec![1165					BuiltinParam {1166						name: "a".into(),1167						has_default: false,1168					},1169					BuiltinParam {1170						name: "b".into(),1171						has_default: false,1172					},1173				],1174				TraceBox(Box::new(NativeAdd)),1175			)))),1176		);1177		evaluator.evaluate_snippet_raw(1178			PathBuf::from("native_caller.jsonnet").into(),1179			"std.assertEqual(std.native(\"native_add\")(1, 2), 3)".into(),1180		)?;1181		Ok(())1182	}11831184	#[test]1185	fn constant_intrinsic() -> crate::error::Result<()> {1186		assert_eval!(1187			"local std2 = std; local std = std2 { primitiveEquals(a, b):: false }; 1 == 1"1188		);1189		Ok(())1190	}11911192	#[test]1193	fn standalone_super() -> crate::error::Result<()> {1194		assert_eval!(1195			r#"1196			local obj = {1197				a: 1,1198				b: 2,1199				c: 3,1200			};1201			local test = obj + {1202				fields: std.objectFields(super),1203				d: 5,1204			};1205			test.fields == ['a', 'b', 'c']1206		"#1207		);1208		Ok(())1209	}12101211	#[test]1212	fn comp_self() -> crate::error::Result<()> {1213		assert_eval!(1214			r#"1215			std.objectFields({1216				a:{1217					[name]: name for name in std.objectFields(self)1218				},1219				b: 2,1220				c: 3,1221			}.a) == ['a', 'b', 'c']1222			"#1223		);12241225		Ok(())1226	}12271228	struct TestImportResolver(Vec<u8>);1229	impl crate::import::ImportResolver for TestImportResolver {1230		fn resolve_file(&self, _: &Path, _: &Path) -> crate::error::Result<Rc<Path>> {1231			Ok(PathBuf::from("/test").into())1232		}12331234		fn load_file_contents(&self, _: &Path) -> crate::error::Result<Vec<u8>> {1235			Ok(self.0.clone())1236		}12371238		unsafe fn as_any(&self) -> &dyn std::any::Any {1239			panic!()1240		}12411242		fn load_file_bin(&self, _resolved: &Path) -> crate::error::Result<Rc<[u8]>> {1243			panic!()1244		}1245	}12461247	#[test]1248	fn issue_23() {1249		let state = EvaluationState::default();1250		state.set_import_resolver(Box::new(TestImportResolver(r#"import "/test""#.into())));1251		let _ = state.evaluate_file_raw(&PathBuf::from("/test"));1252	}12531254	#[test]1255	fn issue_40() {1256		let state = EvaluationState::default();1257		state.with_stdlib();12581259		let error = state1260			.evaluate_snippet_raw(1261				PathBuf::from("issue40.jsonnet").into(),1262				r#"1263				local conf = {1264					n: ""1265				};12661267				local result = conf + {1268					assert std.isNumber(self.n): "is number"1269				};12701271				std.manifestJsonEx(result, "")1272			"#1273				.into(),1274			)1275			.unwrap_err();1276		assert_eq!(error.error().to_string(), "assert failed: is number");1277	}12781279	#[test]1280	fn test_ascii_upper_lower() {1281		assert_eval!(r#"std.assertEqual(std.asciiUpper("aBc😀"), "ABC😀")"#);1282		assert_eval!(r#"std.assertEqual(std.asciiLower("aBc😀"), "abc😀")"#);1283	}12841285	#[test]1286	fn test_member() {1287		assert_eval!(r#"!std.member("", "")"#);1288		assert_eval!(r#"std.member("abc", "a")"#);1289		assert_eval!(r#"!std.member("abc", "d")"#);1290		assert_eval!(r#"!std.member([], "")"#);1291		assert_eval!(r#"std.member(["a", "b", "c"], "a")"#);1292		assert_eval!(r#"!std.member(["a", "b", "c"], "d")"#);1293	}12941295	#[test]1296	fn test_count() {1297		assert_eval!(r#"std.assertEqual(std.count([], ""), 0)"#);1298		assert_eval!(r#"std.assertEqual(std.count(["a", "b", "a"], "d"), 0)"#);1299		assert_eval!(r#"std.assertEqual(std.count(["a", "b", "a"], "a"), 2)"#);1300	}13011302	mod derive_typed {1303		use std::path::PathBuf;13041305		use crate::{typed::Typed, EvaluationState};13061307		#[derive(PartialEq, Debug, Typed)]1308		struct MyTyped {1309			a: u32,1310			#[typed(rename = "b")]1311			c: String,1312		}13131314		#[test]1315		fn test() {1316			let es = EvaluationState::default();1317			let val = eval!("{a: 14, b: 'Hello, world!'}");1318			let typed = es.run_in_state(|| MyTyped::try_from(val).unwrap());13191320			assert_eq!(1321				typed,1322				MyTyped {1323					a: 14,1324					c: "Hello, world!".to_string()1325				}1326			);1327			es.settings_mut().globals.insert(1328				"mytyped".into(),1329				es.run_in_state(|| typed.try_into()).unwrap(),1330			);13311332			let v = es1333				.evaluate_snippet_raw(1334					PathBuf::from("raw.jsonnet").into(),1335					"1336				mytyped == {a: 14, b: 'Hello, world!'}1337			"1338					.into(),1339				)1340				.unwrap()1341				.as_bool()1342				.unwrap();1343			assert!(v)1344		}1345	}1346}