1#![cfg_attr(feature = "unstable", feature(stmt_expr_attributes))]2#![allow(macro_expanded_macro_exports_accessed_by_absolute_paths)]3#![warn(clippy::all, clippy::nursery)]45mod builtin;6mod ctx;7mod dynamic;8pub mod error;9mod evaluate;10mod function;11mod import;12mod integrations;13mod map;14pub mod native;15mod obj;16pub mod trace;17pub mod typed;18mod val;1920pub use ctx::*;21pub use dynamic::*;22use error::{Error::*, LocError, Result, StackTraceElement};23pub use evaluate::*;24pub use function::parse_function_call;25pub use import::*;26use jrsonnet_interner::IStr;27use jrsonnet_parser::*;28use native::NativeCallback;29pub use obj::*;30use std::{31 cell::{Ref, RefCell, RefMut},32 collections::HashMap,33 fmt::Debug,34 path::PathBuf,35 rc::Rc,36};37use trace::{offset_to_location, CodeLocation, CompactFormat, TraceFormat};38pub use val::*;3940type BindableFn = dyn Fn(Option<ObjValue>, Option<ObjValue>) -> Result<LazyVal>;41#[derive(Clone)]42pub enum LazyBinding {43 Bindable(Rc<BindableFn>),44 Bound(LazyVal),45}4647impl Debug for LazyBinding {48 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {49 write!(f, "LazyBinding")50 }51}52impl LazyBinding {53 pub fn evaluate(&self, this: Option<ObjValue>, super_obj: Option<ObjValue>) -> Result<LazyVal> {54 match self {55 Self::Bindable(v) => v(this, super_obj),56 Self::Bound(v) => Ok(v.clone()),57 }58 }59}6061pub struct EvaluationSettings {62 63 pub max_stack: usize,64 65 pub max_trace: usize,66 67 pub ext_vars: HashMap<IStr, Val>,68 69 pub ext_natives: HashMap<IStr, Rc<NativeCallback>>,70 71 pub tla_vars: HashMap<IStr, Val>,72 73 pub globals: HashMap<IStr, Val>,74 75 pub import_resolver: Box<dyn ImportResolver>,76 77 pub manifest_format: ManifestFormat,78 79 pub trace_format: Box<dyn TraceFormat>,80}81impl Default for EvaluationSettings {82 fn default() -> Self {83 Self {84 max_stack: 200,85 max_trace: 20,86 globals: Default::default(),87 ext_vars: Default::default(),88 ext_natives: Default::default(),89 tla_vars: Default::default(),90 import_resolver: Box::new(DummyImportResolver),91 manifest_format: ManifestFormat::Json(4),92 trace_format: Box::new(CompactFormat {93 padding: 4,94 resolver: trace::PathResolver::Absolute,95 }),96 }97 }98}99100#[derive(Default)]101struct EvaluationData {102 103 stack_depth: usize,104 105 files: HashMap<Rc<PathBuf>, FileData>,106 str_files: HashMap<Rc<PathBuf>, IStr>,107}108109pub struct FileData {110 source_code: IStr,111 parsed: LocExpr,112 evaluated: Option<Val>,113}114#[derive(Default)]115pub struct EvaluationStateInternals {116 117 data: RefCell<EvaluationData>,118 119 settings: RefCell<EvaluationSettings>,120}121122thread_local! {123 124 125 pub(crate) static EVAL_STATE: RefCell<Option<EvaluationState>> = RefCell::new(None)126}127pub(crate) fn with_state<T>(f: impl FnOnce(&EvaluationState) -> T) -> T {128 EVAL_STATE.with(|s| f(s.borrow().as_ref().unwrap()))129}130pub(crate) fn push<T>(131 e: Option<&ExprLocation>,132 frame_desc: impl FnOnce() -> String,133 f: impl FnOnce() -> Result<T>,134) -> Result<T> {135 with_state(|s| s.push(e, frame_desc, f))136}137138pub fn push_stack_frame<T>(139 e: Option<&ExprLocation>,140 frame_desc: impl FnOnce() -> String,141 f: impl FnOnce() -> Result<T>,142) -> Result<T> {143 push(e, frame_desc, f)144}145146147#[derive(Default, Clone)]148pub struct EvaluationState(Rc<EvaluationStateInternals>);149150impl EvaluationState {151 152 pub fn add_file(&self, path: Rc<PathBuf>, source_code: IStr) -> Result<()> {153 self.add_parsed_file(154 path.clone(),155 source_code.clone(),156 parse(157 &source_code,158 &ParserSettings {159 file_name: path.clone(),160 loc_data: true,161 },162 )163 .map_err(|error| ImportSyntaxError {164 error: Box::new(error),165 path,166 source_code,167 })?,168 )?;169170 Ok(())171 }172173 174 pub fn add_parsed_file(175 &self,176 name: Rc<PathBuf>,177 source_code: IStr,178 parsed: LocExpr,179 ) -> Result<()> {180 self.data_mut().files.insert(181 name,182 FileData {183 source_code,184 parsed,185 evaluated: None,186 },187 );188189 Ok(())190 }191 pub fn get_source(&self, name: &PathBuf) -> Option<IStr> {192 let ro_map = &self.data().files;193 ro_map.get(name).map(|value| value.source_code.clone())194 }195 pub fn map_source_locations(&self, file: &PathBuf, locs: &[usize]) -> Vec<CodeLocation> {196 offset_to_location(&self.get_source(file).unwrap(), locs)197 }198199 pub(crate) fn import_file(&self, from: &PathBuf, path: &PathBuf) -> Result<Val> {200 let file_path = self.resolve_file(from, path)?;201 {202 let data = self.data();203 let files = &data.files;204 if files.contains_key(&file_path) {205 drop(data);206 return self.evaluate_loaded_file_raw(&file_path);207 }208 }209 let contents = self.load_file_contents(&file_path)?;210 self.add_file(file_path.clone(), contents)?;211 self.evaluate_loaded_file_raw(&file_path)212 }213 pub(crate) fn import_file_str(&self, from: &PathBuf, path: &PathBuf) -> Result<IStr> {214 let path = self.resolve_file(from, path)?;215 if !self.data().str_files.contains_key(&path) {216 let file_str = self.load_file_contents(&path)?;217 self.data_mut().str_files.insert(path.clone(), file_str);218 }219 Ok(self.data().str_files.get(&path).cloned().unwrap())220 }221222 fn evaluate_loaded_file_raw(&self, name: &PathBuf) -> Result<Val> {223 let expr: LocExpr = {224 let ro_map = &self.data().files;225 let value = ro_map226 .get(name)227 .unwrap_or_else(|| panic!("file not added: {:?}", name));228 if let Some(ref evaluated) = value.evaluated {229 return Ok(evaluated.clone());230 }231 value.parsed.clone()232 };233 let value = evaluate(self.create_default_context()?, &expr)?;234 {235 self.data_mut()236 .files237 .get_mut(name)238 .unwrap()239 .evaluated240 .replace(value.clone());241 }242 Ok(value)243 }244245 246 pub fn with_stdlib(&self) -> &Self {247 use jrsonnet_stdlib::STDLIB_STR;248 let std_path = Rc::new(PathBuf::from("std.jsonnet"));249 self.run_in_state(|| {250 self.add_parsed_file(251 std_path.clone(),252 STDLIB_STR.to_owned().into(),253 builtin::get_parsed_stdlib(),254 )255 .unwrap();256 let val = self.evaluate_loaded_file_raw(&std_path).unwrap();257 self.settings_mut().globals.insert("std".into(), val);258 });259 self260 }261262 263 pub fn create_default_context(&self) -> Result<Context> {264 let globals = &self.settings().globals;265 let mut new_bindings: HashMap<IStr, LazyBinding> = HashMap::new();266 for (name, value) in globals.iter() {267 new_bindings.insert(268 name.clone(),269 LazyBinding::Bound(resolved_lazy_val!(value.clone())),270 );271 }272 Context::new().extend_unbound(new_bindings, None, None, None)273 }274275 276 pub fn push<T>(277 &self,278 e: Option<&ExprLocation>,279 frame_desc: impl FnOnce() -> String,280 f: impl FnOnce() -> Result<T>,281 ) -> Result<T> {282 {283 let mut data = self.data_mut();284 let stack_depth = &mut data.stack_depth;285 if *stack_depth > self.max_stack() {286 287 drop(data);288 throw!(StackOverflow);289 } else {290 *stack_depth += 1;291 }292 }293 let result = f();294 self.data_mut().stack_depth -= 1;295 if let Err(mut err) = result {296 err.trace_mut().0.push(StackTraceElement {297 location: e.cloned(),298 desc: frame_desc(),299 });300 return Err(err);301 }302 result303 }304305 306 pub fn run_in_state<T>(&self, f: impl FnOnce() -> T) -> T {307 EVAL_STATE.with(|v| {308 let has_state = v.borrow().is_some();309 if !has_state {310 v.borrow_mut().replace(self.clone());311 }312 let result = f();313 if !has_state {314 v.borrow_mut().take();315 }316 result317 })318 }319320 pub fn stringify_err(&self, e: &LocError) -> String {321 let mut out = String::new();322 self.settings()323 .trace_format324 .write_trace(&mut out, self, e)325 .unwrap();326 out327 }328329 pub fn manifest(&self, val: Val) -> Result<IStr> {330 self.run_in_state(|| val.manifest(&self.manifest_format()))331 }332 pub fn manifest_multi(&self, val: Val) -> Result<Vec<(IStr, IStr)>> {333 self.run_in_state(|| val.manifest_multi(&self.manifest_format()))334 }335 pub fn manifest_stream(&self, val: Val) -> Result<Vec<IStr>> {336 self.run_in_state(|| val.manifest_stream(&self.manifest_format()))337 }338339 340 pub fn with_tla(&self, val: Val) -> Result<Val> {341 self.run_in_state(|| {342 Ok(match val {343 Val::Func(func) => push(344 None,345 || "during TLA call".to_owned(),346 || {347 Ok(func.evaluate_map(348 self.create_default_context()?,349 &self.settings().tla_vars,350 true,351 )?)352 },353 )?,354 v => v,355 })356 })357 }358}359360361impl EvaluationState {362 fn data(&self) -> Ref<EvaluationData> {363 self.0.data.borrow()364 }365 fn data_mut(&self) -> RefMut<EvaluationData> {366 self.0.data.borrow_mut()367 }368 pub fn settings(&self) -> Ref<EvaluationSettings> {369 self.0.settings.borrow()370 }371 pub fn settings_mut(&self) -> RefMut<EvaluationSettings> {372 self.0.settings.borrow_mut()373 }374}375376377impl EvaluationState {378 pub fn evaluate_file_raw(&self, name: &PathBuf) -> Result<Val> {379 self.run_in_state(|| self.import_file(&std::env::current_dir().expect("cwd"), name))380 }381 pub fn evaluate_file_raw_nocwd(&self, name: &PathBuf) -> Result<Val> {382 self.run_in_state(|| self.import_file(&PathBuf::from("."), name))383 }384 385 pub fn evaluate_snippet_raw(&self, source: Rc<PathBuf>, code: IStr) -> Result<Val> {386 let parsed = parse(387 &code,388 &ParserSettings {389 file_name: source.clone(),390 loc_data: true,391 },392 )393 .unwrap();394 self.add_parsed_file(source, code, parsed.clone())?;395 self.evaluate_expr_raw(parsed)396 }397 398 pub fn evaluate_expr_raw(&self, code: LocExpr) -> Result<Val> {399 self.run_in_state(|| evaluate(self.create_default_context()?, &code))400 }401}402403404impl EvaluationState {405 pub fn add_ext_var(&self, name: IStr, value: Val) {406 self.settings_mut().ext_vars.insert(name, value);407 }408 pub fn add_ext_str(&self, name: IStr, value: IStr) {409 self.add_ext_var(name, Val::Str(value));410 }411 pub fn add_ext_code(&self, name: IStr, code: IStr) -> Result<()> {412 let value =413 self.evaluate_snippet_raw(Rc::new(PathBuf::from(format!("ext_code {}", name))), code)?;414 self.add_ext_var(name, value);415 Ok(())416 }417418 pub fn add_tla(&self, name: IStr, value: Val) {419 self.settings_mut().tla_vars.insert(name, value);420 }421 pub fn add_tla_str(&self, name: IStr, value: IStr) {422 self.add_tla(name, Val::Str(value));423 }424 pub fn add_tla_code(&self, name: IStr, code: IStr) -> Result<()> {425 let value =426 self.evaluate_snippet_raw(Rc::new(PathBuf::from(format!("tla_code {}", name))), code)?;427 self.add_tla(name, value);428 Ok(())429 }430431 pub fn resolve_file(&self, from: &PathBuf, path: &PathBuf) -> Result<Rc<PathBuf>> {432 Ok(self.settings().import_resolver.resolve_file(from, path)?)433 }434 pub fn load_file_contents(&self, path: &PathBuf) -> Result<IStr> {435 Ok(self.settings().import_resolver.load_file_contents(path)?)436 }437438 pub fn import_resolver(&self) -> Ref<dyn ImportResolver> {439 Ref::map(self.settings(), |s| &*s.import_resolver)440 }441 pub fn set_import_resolver(&self, resolver: Box<dyn ImportResolver>) {442 self.settings_mut().import_resolver = resolver;443 }444445 pub fn add_native(&self, name: IStr, cb: Rc<NativeCallback>) {446 self.settings_mut().ext_natives.insert(name, cb);447 }448449 pub fn manifest_format(&self) -> ManifestFormat {450 self.settings().manifest_format.clone()451 }452 pub fn set_manifest_format(&self, format: ManifestFormat) {453 self.settings_mut().manifest_format = format;454 }455456 pub fn trace_format(&self) -> Ref<dyn TraceFormat> {457 Ref::map(self.settings(), |s| &*s.trace_format)458 }459 pub fn set_trace_format(&self, format: Box<dyn TraceFormat>) {460 self.settings_mut().trace_format = format;461 }462463 pub fn max_trace(&self) -> usize {464 self.settings().max_trace465 }466 pub fn set_max_trace(&self, trace: usize) {467 self.settings_mut().max_trace = trace;468 }469470 pub fn max_stack(&self) -> usize {471 self.settings().max_stack472 }473 pub fn set_max_stack(&self, trace: usize) {474 self.settings_mut().max_stack = trace;475 }476}477478#[cfg(test)]479pub mod tests {480 use super::Val;481 use crate::{error::Error::*, primitive_equals, EvaluationState};482 use jrsonnet_interner::IStr;483 use jrsonnet_parser::*;484 use std::{path::PathBuf, rc::Rc};485486 #[test]487 #[should_panic]488 fn eval_state_stacktrace() {489 let state = EvaluationState::default();490 state.run_in_state(|| {491 state492 .push(493 &ExprLocation(Rc::new(PathBuf::from("test1.jsonnet")), 10, 20),494 || "outer".to_owned(),495 || {496 state.push(497 &ExprLocation(Rc::new(PathBuf::from("test2.jsonnet")), 30, 40),498 || "inner".to_owned(),499 || Err(RuntimeError("".into()).into()),500 )?;501 Ok(())502 },503 )504 .unwrap();505 });506 }507508 #[test]509 fn eval_state_standard() {510 let state = EvaluationState::default();511 state.with_stdlib();512 assert!(primitive_equals(513 &state514 .evaluate_snippet_raw(515 Rc::new(PathBuf::from("raw.jsonnet")),516 r#"std.assertEqual(std.base64("test"), "dGVzdA==")"#.into()517 )518 .unwrap(),519 &Val::Bool(true),520 )521 .unwrap());522 }523524 macro_rules! eval {525 ($str: expr) => {526 EvaluationState::default()527 .with_stdlib()528 .evaluate_snippet_raw(Rc::new(PathBuf::from("raw.jsonnet")), $str.into())529 .unwrap()530 };531 }532 macro_rules! eval_json {533 ($str: expr) => {{534 let evaluator = EvaluationState::default();535 evaluator.with_stdlib();536 evaluator.run_in_state(|| {537 evaluator538 .evaluate_snippet_raw(Rc::new(PathBuf::from("raw.jsonnet")), $str.into())539 .unwrap()540 .to_json(0)541 .unwrap()542 .replace("\n", "")543 })544 }};545 }546547 548 macro_rules! assert_eval {549 ($str: expr) => {550 assert!(primitive_equals(&eval!($str), &Val::Bool(true)).unwrap())551 };552 }553554 555 macro_rules! assert_eval_neg {556 ($str: expr) => {557 assert!(primitive_equals(&eval!($str), &Val::Bool(false)).unwrap())558 };559 }560 macro_rules! assert_json {561 ($str: expr, $out: expr) => {562 assert_eq!(eval_json!($str), $out.replace("\t", ""))563 };564 }565566 567 #[test]568 fn equality_operator() {569 assert_eval!("2 == 2");570 assert_eval_neg!("2 != 2");571 assert_eval!("2 != 3");572 assert_eval_neg!("2 == 3");573 assert_eval!("'Hello' == 'Hello'");574 assert_eval_neg!("'Hello' != 'Hello'");575 assert_eval!("'Hello' != 'World'");576 assert_eval_neg!("'Hello' == 'World'");577 }578579 #[test]580 fn math_evaluation() {581 assert_eval!("2 + 2 * 2 == 6");582 assert_eval!("3 + (2 + 2 * 2) == 9");583 }584585 #[test]586 fn string_concat() {587 assert_eval!("'Hello' + 'World' == 'HelloWorld'");588 assert_eval!("'Hello' * 3 == 'HelloHelloHello'");589 assert_eval!("'Hello' + 'World' * 3 == 'HelloWorldWorldWorld'");590 }591592 #[test]593 fn faster_join() {594 assert_eval!("std.join([0,0], [[1,2],[3,4],[5,6]]) == [1,2,0,0,3,4,0,0,5,6]");595 assert_eval!("std.join(',', ['1','2','3','4']) == '1,2,3,4'");596 }597598 #[test]599 fn function_contexts() {600 assert_eval!(601 r#"602 local k = {603 t(name = self.h): [self.h, name],604 h: 3,605 };606 local f = {607 t: k.t(),608 h: 4,609 };610 f.t[0] == f.t[1]611 "#612 );613 }614615 #[test]616 fn local() {617 assert_eval!("local a = 2; local b = 3; a + b == 5");618 assert_eval!("local a = 1, b = a + 1; a + b == 3");619 assert_eval!("local a = 1; local a = 2; a == 2");620 }621622 #[test]623 fn object_lazyness() {624 assert_json!("local a = {a:error 'test'}; {}", r#"{}"#);625 }626627 #[test]628 fn object_inheritance() {629 assert_json!("{a: self.b} + {b:3}", r#"{"a": 3,"b": 3}"#);630 }631632 #[test]633 fn object_assertion_success() {634 eval!("{assert \"a\" in self} + {a:2}");635 }636637 #[test]638 fn object_assertion_error() {639 eval!("{assert \"a\" in self}");640 }641642 #[test]643 fn lazy_args() {644 eval!("local test(a) = 2; test(error '3')");645 }646647 #[test]648 #[should_panic]649 fn tailstrict_args() {650 eval!("local test(a) = 2; test(error '3') tailstrict");651 }652653 #[test]654 #[should_panic]655 fn no_binding_error() {656 eval!("a");657 }658659 #[test]660 fn test_object() {661 assert_json!("{a:2}", r#"{"a": 2}"#);662 assert_json!("{a:2+2}", r#"{"a": 4}"#);663 assert_json!("{a:2}+{b:2}", r#"{"a": 2,"b": 2}"#);664 assert_json!("{b:3}+{b:2}", r#"{"b": 2}"#);665 assert_json!("{b:3}+{b+:2}", r#"{"b": 5}"#);666 assert_json!("local test='a'; {[test]:2}", r#"{"a": 2}"#);667 assert_json!(668 r#"669 {670 name: "Alice",671 welcome: "Hello " + self.name + "!",672 }673 "#,674 r#"{"name": "Alice","welcome": "Hello Alice!"}"#675 );676 assert_json!(677 r#"678 {679 name: "Alice",680 welcome: "Hello " + self.name + "!",681 } + {682 name: "Bob"683 }684 "#,685 r#"{"name": "Bob","welcome": "Hello Bob!"}"#686 );687 }688689 #[test]690 fn functions() {691 assert_json!(r#"local a = function(b, c = 2) b + c; a(2)"#, "4");692 assert_json!(693 r#"local a = function(b, c = "Dear") b + c + d, d = "World"; a("Hello")"#,694 r#""HelloDearWorld""#695 );696 }697698 #[test]699 fn local_methods() {700 assert_json!(r#"local a(b, c = 2) = b + c; a(2)"#, "4");701 assert_json!(702 r#"local a(b, c = "Dear") = b + c + d, d = "World"; a("Hello")"#,703 r#""HelloDearWorld""#704 );705 }706707 #[test]708 fn object_locals() {709 assert_json!(r#"{local a = 3, b: a}"#, r#"{"b": 3}"#);710 assert_json!(r#"{local a = 3, local c = a, b: c}"#, r#"{"b": 3}"#);711 assert_json!(712 r#"{local a = function (b) {[b]:4}, test: a("test")}"#,713 r#"{"test": {"test": 4}}"#714 );715 }716717 #[test]718 fn object_comp() {719 assert_json!(720 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}"#,721 "{\"h1_2\": \"0a\",\"h1_3\": \"0a\",\"h1_4\": \"0a\",\"h2_3\": \"a1\",\"h2_4\": \"a1\",\"h3_2\": \"0a\",\"h3_4\": \"a1\"}"722 )723 }724725 #[test]726 fn direct_self() {727 println!(728 "{:#?}",729 eval!(730 r#"731 {732 local me = self,733 a: 3,734 b(): me.a,735 }736 "#737 )738 );739 }740741 #[test]742 fn indirect_self() {743 744 745 eval!(746 r#"{747 local me = self,748 a: 3,749 b: me.a,750 }.b"#751 );752 }753754 755 #[test]756 fn std_assert_ok() {757 eval!("std.assertEqual(4.5 << 2, 16)");758 }759760 #[test]761 #[should_panic]762 fn std_assert_failure() {763 eval!("std.assertEqual(4.5 << 2, 15)");764 }765766 #[test]767 fn string_is_string() {768 assert!(primitive_equals(769 &eval!("local arr = 'hello'; (!std.isArray(arr)) && (!std.isString(arr))"),770 &Val::Bool(false),771 )772 .unwrap());773 }774775 #[test]776 fn base64_works() {777 assert_json!(r#"std.base64("test")"#, r#""dGVzdA==""#);778 }779780 #[test]781 fn utf8_chars() {782 assert_json!(783 r#"local c="😎";{c:std.codepoint(c),l:std.length(c)}"#,784 r#"{"c": 128526,"l": 1}"#785 )786 }787788 #[test]789 fn json() {790 assert_json!(791 r#"std.manifestJsonEx({a:3, b:4, c:6},"")"#,792 r#""{\n\"a\": 3,\n\"b\": 4,\n\"c\": 6\n}""#793 );794 }795796 #[test]797 fn test() {798 assert_json!(799 r#"[[a, b] for a in [1,2,3] for b in [4,5,6]]"#,800 "[[1,4],[1,5],[1,6],[2,4],[2,5],[2,6],[3,4],[3,5],[3,6]]"801 );802 }803804 #[test]805 fn sjsonnet() {806 eval!(807 r#"808 local x0 = {k: 1};809 local x1 = {k: x0.k + x0.k};810 local x2 = {k: x1.k + x1.k};811 local x3 = {k: x2.k + x2.k};812 local x4 = {k: x3.k + x3.k};813 local x5 = {k: x4.k + x4.k};814 local x6 = {k: x5.k + x5.k};815 local x7 = {k: x6.k + x6.k};816 local x8 = {k: x7.k + x7.k};817 local x9 = {k: x8.k + x8.k};818 local x10 = {k: x9.k + x9.k};819 local x11 = {k: x10.k + x10.k};820 local x12 = {k: x11.k + x11.k};821 local x13 = {k: x12.k + x12.k};822 local x14 = {k: x13.k + x13.k};823 local x15 = {k: x14.k + x14.k};824 local x16 = {k: x15.k + x15.k};825 local x17 = {k: x16.k + x16.k};826 local x18 = {k: x17.k + x17.k};827 local x19 = {k: x18.k + x18.k};828 local x20 = {k: x19.k + x19.k};829 local x21 = {k: x20.k + x20.k};830 x21.k831 "#832 );833 }834835 836 837 838 839 840 841 842 843 844 845 846 847848 849850851852853854855856857858859860861862863864865866867868869870871872873874 #[test]875 fn equality() {876 println!(877 "{:?}",878 jrsonnet_parser::parse(879 "{ x: 1, y: 2 } == { x: 1, y: 2 }",880 &ParserSettings::default()881 )882 );883 assert_eval!("{ x: 1, y: 2 } == { x: 1, y: 2 }")884 }885886 #[test]887 fn native_ext() -> crate::error::Result<()> {888 use super::native::NativeCallback;889 let evaluator = EvaluationState::default();890891 evaluator.with_stdlib();892 evaluator.settings_mut().ext_natives.insert(893 "native_add".into(),894 Rc::new(NativeCallback::new(895 ParamsDesc(Rc::new(vec![896 Param("a".into(), None),897 Param("b".into(), None),898 ])),899 |caller, args| {900 assert_eq!(901 caller.unwrap(),902 Rc::new(PathBuf::from("native_caller.jsonnet"))903 );904 match (&args[0], &args[1]) {905 (Val::Num(a), Val::Num(b)) => Ok(Val::Num(a + b)),906 (_, _) => unreachable!(),907 }908 },909 )),910 );911 evaluator.evaluate_snippet_raw(912 Rc::new(PathBuf::from("native_caller.jsonnet")),913 "std.assertEqual(std.native(\"native_add\")(1, 2), 3)".into(),914 )?;915 Ok(())916 }917918 #[test]919 fn constant_intrinsic() -> crate::error::Result<()> {920 assert_eval!(921 "local std2 = std; local std = std2 { primitiveEquals(a, b):: false }; 1 == 1"922 );923 Ok(())924 }925926 struct TestImportResolver(IStr);927 impl crate::import::ImportResolver for TestImportResolver {928 fn resolve_file(&self, _: &PathBuf, _: &PathBuf) -> crate::error::Result<Rc<PathBuf>> {929 Ok(Rc::new(PathBuf::from("/test")))930 }931932 fn load_file_contents(&self, _: &PathBuf) -> crate::error::Result<IStr> {933 Ok(self.0.clone())934 }935936 unsafe fn as_any(&self) -> &dyn std::any::Any {937 panic!()938 }939 }940941 #[test]942 fn issue_23() {943 let state = EvaluationState::default();944 state.set_import_resolver(Box::new(TestImportResolver(r#"import "/test""#.into())));945 let _ = state.evaluate_file_raw(&PathBuf::from("/test"));946 }947}