difftreelog
feat add standard like api to evaluator
in: master
1 file changed
crates/jrsonnet-evaluator/src/lib.rsdiffbeforeafterboth1#![feature(box_syntax, box_patterns)]2#![feature(type_alias_impl_trait)]3#![feature(debug_non_exhaustive)]4#![feature(test)]5#![feature(stmt_expr_attributes)]6#![allow(macro_expanded_macro_exports_accessed_by_absolute_paths)]78extern crate test;910mod builtin;11mod ctx;12mod dynamic;13mod error;14mod evaluate;15mod function;16mod import;17mod map;18mod obj;19pub mod trace;20mod val;2122pub use ctx::*;23pub use dynamic::*;24pub use error::*;25pub use evaluate::*;26pub use function::parse_function_call;27pub use import::*;28use jrsonnet_parser::*;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};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 LazyBinding::Bindable(v) => v(this, super_obj),56 LazyBinding::Bound(v) => Ok(v.clone()),57 }58 }59}6061pub struct EvaluationSettings {62 /// Limits recursion by limiting stack frames63 pub max_stack: usize,64 /// Limit amount of stack trace items preserved65 pub max_trace: usize,66 /// Used for std.extVar67 pub ext_vars: HashMap<Rc<str>, Val>,68 /// Global variables are inserted in default context69 pub globals: HashMap<Rc<str>, Val>,70 /// Used to resolve file locations/contents71 pub import_resolver: Box<dyn ImportResolver>,72}73impl Default for EvaluationSettings {74 fn default() -> Self {75 EvaluationSettings {76 max_stack: 200,77 max_trace: 20,78 globals: Default::default(),79 ext_vars: Default::default(),80 import_resolver: Box::new(DummyImportResolver),81 }82 }83}8485#[derive(Default)]86struct EvaluationData {87 /// Used for stack overflow detection, stacktrace is now populated on unwind88 stack_depth: usize,89 /// Contains file source codes and evaluated results for imports and pretty90 /// printing stacktraces91 files: HashMap<Rc<PathBuf>, FileData>,92 str_files: HashMap<Rc<PathBuf>, Rc<str>>,93}9495pub struct FileData {96 source_code: Rc<str>,97 parsed: LocExpr,98 evaluated: Option<Val>,99}100#[derive(Default)]101pub struct EvaluationStateInternals {102 /// Internal state103 data: RefCell<EvaluationData>,104 /// Settings, safe to change at runtime105 settings: RefCell<EvaluationSettings>,106}107108thread_local! {109 /// Contains state for currently executing file110 /// Global state is fine there111 pub(crate) static EVAL_STATE: RefCell<Option<EvaluationState>> = RefCell::new(None)112}113pub(crate) fn with_state<T>(f: impl FnOnce(&EvaluationState) -> T) -> T {114 EVAL_STATE.with(|s| f(s.borrow().as_ref().unwrap()))115}116pub fn create_error(err: Error) -> LocError {117 with_state(|s| s.error(err))118}119pub fn create_error_result<T>(err: Error) -> Result<T> {120 Err(with_state(|s| s.error(err)))121}122pub(crate) fn push<T>(123 e: &Option<ExprLocation>,124 frame_desc: impl FnOnce() -> String,125 f: impl FnOnce() -> Result<T>,126) -> Result<T> {127 if let Some(v) = e {128 with_state(|s| s.push(&v, frame_desc, f))129 } else {130 f()131 }132}133134/// Maintains stack trace and import resolution135#[derive(Default, Clone)]136pub struct EvaluationState(Rc<EvaluationStateInternals>);137impl EvaluationState {138 fn data(&self) -> Ref<EvaluationData> {139 self.0.data.borrow()140 }141 fn data_mut(&self) -> RefMut<EvaluationData> {142 self.0.data.borrow_mut()143 }144 pub fn settings(&self) -> Ref<EvaluationSettings> {145 self.0.settings.borrow()146 }147 pub fn settings_mut(&self) -> RefMut<EvaluationSettings> {148 self.0.settings.borrow_mut()149 }150151 pub fn evaluate_file_to_json(&self, path: &PathBuf) -> std::result::Result<Rc<str>, LocError> {152 self.import_file(&PathBuf::new(), &path)153 .and_then(|v| v.into_json(4))154 }155 pub fn evaluate_snippet_to_json(156 &self,157 path: &PathBuf,158 snippet: &str,159 ) -> std::result::Result<Rc<str>, LocError> {160 self.parse_evaluate_raw(Rc::new(path.clone()), snippet)161 .and_then(|v| v.into_json(4))162 }163164 /// Parses and adds file to loaded165 pub fn add_file(&self, path: Rc<PathBuf>, source_code: Rc<str>) -> Result<()> {166 self.add_parsed_file(167 path.clone(),168 source_code.clone(),169 parse(170 &source_code,171 &ParserSettings {172 file_name: path.clone(),173 loc_data: true,174 },175 )176 .map_err(|error| {177 create_error(Error::ImportSyntaxError {178 error,179 path,180 source_code,181 })182 })?,183 )?;184185 Ok(())186 }187188 /// Adds file by source code and parsed expr189 pub fn add_parsed_file(190 &self,191 name: Rc<PathBuf>,192 source_code: Rc<str>,193 parsed: LocExpr,194 ) -> Result<()> {195 self.data_mut().files.insert(196 name,197 FileData {198 source_code,199 parsed,200 evaluated: None,201 },202 );203204 Ok(())205 }206 pub fn get_source(&self, name: &PathBuf) -> Option<Rc<str>> {207 let ro_map = &self.data().files;208 ro_map.get(name).map(|value| value.source_code.clone())209 }210 pub fn map_source_locations(&self, file: &PathBuf, locs: &[usize]) -> Vec<CodeLocation> {211 offset_to_location(&self.get_source(file).unwrap(), locs)212 }213214 pub fn evaluate_file(&self, name: &PathBuf) -> Result<Val> {215 self.run_in_state(|| {216 let expr: LocExpr = {217 let ro_map = &self.data().files;218 let value = ro_map219 .get(name)220 .unwrap_or_else(|| panic!("file not added: {:?}", name));221 if value.evaluated.is_some() {222 return Ok(value.evaluated.clone().unwrap());223 }224 value.parsed.clone()225 };226 let value = evaluate(self.create_default_context()?, &expr)?;227 {228 self.0229 .data230 .borrow_mut()231 .files232 .get_mut(name)233 .unwrap()234 .evaluated235 .replace(value.clone());236 }237 Ok(value)238 })239 }240 pub fn resolve_file(&self, from: &PathBuf, path: &PathBuf) -> Result<Rc<PathBuf>> {241 Ok(self.settings().import_resolver.resolve_file(from, path)?)242 }243 pub fn load_file_contents(&self, path: &PathBuf) -> Result<Rc<str>> {244 Ok(self.settings().import_resolver.load_file_contents(path)?)245 }246 pub(crate) fn import_file(&self, from: &PathBuf, path: &PathBuf) -> Result<Val> {247 let file_path = self.resolve_file(from, path)?;248 {249 let files = &self.data().files;250 if files.contains_key(&file_path) {251 return self.evaluate_file(&file_path);252 }253 }254 let contents = self.load_file_contents(&file_path)?;255 self.add_file(file_path.clone(), contents)?;256 self.evaluate_file(&file_path)257 }258 pub(crate) fn import_file_str(&self, from: &PathBuf, path: &PathBuf) -> Result<Rc<str>> {259 let path = self.resolve_file(from, path)?;260 if !self.data().str_files.contains_key(&path) {261 let file_str = self.load_file_contents(&path)?;262 self.data_mut().str_files.insert(path.clone(), file_str);263 }264 Ok(self.data().str_files.get(&path).cloned().unwrap())265 }266267 /// Parses and evaluates snippet268 pub fn parse_evaluate_raw(&self, source: Rc<PathBuf>, code: &str) -> Result<Val> {269 let parsed = parse(270 &code,271 &ParserSettings {272 file_name: source,273 loc_data: true,274 },275 )276 .unwrap();277 self.evaluate_raw(parsed)278 }279 /// Evaluates parsed expression280 pub fn evaluate_raw(&self, code: LocExpr) -> Result<Val> {281 self.run_in_state(|| evaluate(self.create_default_context()?, &code))282 }283284 /// Adds standard library global variable (std) to this evaluator285 pub fn with_stdlib(&self) -> &Self {286 use jrsonnet_stdlib::STDLIB_STR;287 let std_path = Rc::new(PathBuf::from("std.jsonnet"));288 self.run_in_state(|| {289 self.add_parsed_file(290 std_path.clone(),291 STDLIB_STR.to_owned().into(),292 builtin::get_parsed_stdlib(),293 )294 .unwrap();295 let val = self.evaluate_file(&std_path).unwrap();296 self.settings_mut().globals.insert("std".into(), val);297 });298 self299 }300301 /// Creates context with all passed global variables302 pub fn create_default_context(&self) -> Result<Context> {303 let globals = &self.settings().globals;304 let mut new_bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();305 for (name, value) in globals.iter() {306 new_bindings.insert(307 name.clone(),308 LazyBinding::Bound(resolved_lazy_val!(value.clone())),309 );310 }311 Context::new().extend_unbound(new_bindings, None, None, None)312 }313314 /// Executes code, creating new stack frame315 pub fn push<T>(316 &self,317 e: &ExprLocation,318 frame_desc: impl FnOnce() -> String,319 f: impl FnOnce() -> Result<T>,320 ) -> Result<T> {321 {322 let mut data = self.data_mut();323 let stack_depth = &mut data.stack_depth;324 if *stack_depth > self.settings().max_stack {325 // Error creation uses data, so i drop guard here326 drop(data);327 return Err(self.error(Error::StackOverflow));328 } else {329 *stack_depth += 1;330 }331 }332 let result = f();333 self.data_mut().stack_depth -= 1;334 if let Err(mut err) = result {335 (err.1).0.push(StackTraceElement(e.clone(), frame_desc()));336 return Err(err);337 }338 result339 }340341 /// Creates error with stack trace342 pub fn error(&self, err: Error) -> LocError {343 LocError(err, StackTrace(vec![]))344 }345346 /// Runs passed function in state (required, if function needs to modify stack trace)347 pub fn run_in_state<T>(&self, f: impl FnOnce() -> T) -> T {348 EVAL_STATE.with(|v| {349 let has_state = v.borrow().is_some();350 if !has_state {351 v.borrow_mut().replace(self.clone());352 }353 let result = f();354 if !has_state {355 v.borrow_mut().take();356 }357 result358 })359 }360}361362#[cfg(test)]363pub mod tests {364 use super::Val;365 use crate::{create_error, primitive_equals, EvaluationState};366 use jrsonnet_parser::*;367 use std::{path::PathBuf, rc::Rc};368369 #[test]370 fn eval_state_stacktrace() {371 let state = EvaluationState::default();372 state.run_in_state(|| {373 state374 .push(375 &ExprLocation(Rc::new(PathBuf::from("test1.jsonnet")), 10, 20),376 || "outer".to_owned(),377 || {378 state.push(379 &ExprLocation(Rc::new(PathBuf::from("test2.jsonnet")), 30, 40),380 || "inner".to_owned(),381 || Err(create_error(crate::error::Error::RuntimeError("".into()))),382 )?;383 Ok(())384 },385 )386 .unwrap();387 });388 }389390 #[test]391 fn eval_state_standard() {392 let state = EvaluationState::default();393 state.with_stdlib();394 assert!(primitive_equals(395 &state396 .parse_evaluate_raw(397 Rc::new(PathBuf::from("raw.jsonnet")),398 r#"std.assertEqual(std.base64("test"), "dGVzdA==")"#399 )400 .unwrap(),401 &Val::Bool(true),402 )403 .unwrap());404 }405406 macro_rules! eval {407 ($str: expr) => {408 EvaluationState::default()409 .with_stdlib()410 .parse_evaluate_raw(Rc::new(PathBuf::from("raw.jsonnet")), $str)411 .unwrap()412 };413 }414 macro_rules! eval_json {415 ($str: expr) => {{416 let evaluator = EvaluationState::default();417 evaluator.with_stdlib();418 evaluator.run_in_state(|| {419 evaluator420 .parse_evaluate_raw(Rc::new(PathBuf::from("raw.jsonnet")), $str)421 .unwrap()422 .into_json(0)423 .unwrap()424 .replace("\n", "")425 })426 }};427 }428429 /// Asserts given code returns `true`430 macro_rules! assert_eval {431 ($str: expr) => {432 assert!(primitive_equals(&eval!($str), &Val::Bool(true)).unwrap())433 };434 }435436 /// Asserts given code returns `false`437 macro_rules! assert_eval_neg {438 ($str: expr) => {439 assert!(primitive_equals(&eval!($str), &Val::Bool(false)).unwrap())440 };441 }442 macro_rules! assert_json {443 ($str: expr, $out: expr) => {444 assert_eq!(eval_json!($str), $out.replace("\t", ""))445 };446 }447448 /// Sanity checking, before trusting to another tests449 #[test]450 fn equality_operator() {451 assert_eval!("2 == 2");452 assert_eval_neg!("2 != 2");453 assert_eval!("2 != 3");454 assert_eval_neg!("2 == 3");455 assert_eval!("'Hello' == 'Hello'");456 assert_eval_neg!("'Hello' != 'Hello'");457 assert_eval!("'Hello' != 'World'");458 assert_eval_neg!("'Hello' == 'World'");459 }460461 #[test]462 fn math_evaluation() {463 assert_eval!("2 + 2 * 2 == 6");464 assert_eval!("3 + (2 + 2 * 2) == 9");465 }466467 #[test]468 fn string_concat() {469 assert_eval!("'Hello' + 'World' == 'HelloWorld'");470 assert_eval!("'Hello' * 3 == 'HelloHelloHello'");471 assert_eval!("'Hello' + 'World' * 3 == 'HelloWorldWorldWorld'");472 }473474 #[test]475 fn faster_join() {476 assert_eval!("std.join([0,0], [[1,2],[3,4],[5,6]]) == [1,2,0,0,3,4,0,0,5,6]");477 assert_eval!("std.join(',', ['1','2','3','4']) == '1,2,3,4'");478 }479480 #[test]481 fn function_contexts() {482 assert_eval!(483 r#"484 local k = {485 t(name = self.h): [self.h, name],486 h: 3,487 };488 local f = {489 t: k.t(),490 h: 4,491 };492 f.t[0] == f.t[1]493 "#494 );495 }496497 #[test]498 fn local() {499 assert_eval!("local a = 2; local b = 3; a + b == 5");500 assert_eval!("local a = 1, b = a + 1; a + b == 3");501 assert_eval!("local a = 1; local a = 2; a == 2");502 }503504 #[test]505 fn object_lazyness() {506 assert_json!("local a = {a:error 'test'}; {}", r#"{}"#);507 }508509 #[test]510 fn object_inheritance() {511 assert_json!("{a: self.b} + {b:3}", r#"{"a": 3,"b": 3}"#);512 }513514 #[test]515 fn object_assertion_success() {516 eval!("{assert \"a\" in self} + {a:2}");517 }518519 #[test]520 fn object_assertion_error() {521 eval!("{assert \"a\" in self}");522 }523524 #[test]525 fn lazy_args() {526 eval!("local test(a) = 2; test(error '3')");527 }528529 #[test]530 #[should_panic]531 fn tailstrict_args() {532 eval!("local test(a) = 2; test(error '3') tailstrict");533 }534535 #[test]536 #[should_panic]537 fn no_binding_error() {538 eval!("a");539 }540541 #[test]542 fn test_object() {543 assert_json!("{a:2}", r#"{"a": 2}"#);544 assert_json!("{a:2+2}", r#"{"a": 4}"#);545 assert_json!("{a:2}+{b:2}", r#"{"a": 2,"b": 2}"#);546 assert_json!("{b:3}+{b:2}", r#"{"b": 2}"#);547 assert_json!("{b:3}+{b+:2}", r#"{"b": 5}"#);548 assert_json!("local test='a'; {[test]:2}", r#"{"a": 2}"#);549 assert_json!(550 r#"551 {552 name: "Alice",553 welcome: "Hello " + self.name + "!",554 }555 "#,556 r#"{"name": "Alice","welcome": "Hello Alice!"}"#557 );558 assert_json!(559 r#"560 {561 name: "Alice",562 welcome: "Hello " + self.name + "!",563 } + {564 name: "Bob"565 }566 "#,567 r#"{"name": "Bob","welcome": "Hello Bob!"}"#568 );569 }570571 #[test]572 fn functions() {573 assert_json!(r#"local a = function(b, c = 2) b + c; a(2)"#, "4");574 assert_json!(575 r#"local a = function(b, c = "Dear") b + c + d, d = "World"; a("Hello")"#,576 r#""HelloDearWorld""#577 );578 }579580 #[test]581 fn local_methods() {582 assert_json!(r#"local a(b, c = 2) = b + c; a(2)"#, "4");583 assert_json!(584 r#"local a(b, c = "Dear") = b + c + d, d = "World"; a("Hello")"#,585 r#""HelloDearWorld""#586 );587 }588589 #[test]590 fn object_locals() {591 assert_json!(r#"{local a = 3, b: a}"#, r#"{"b": 3}"#);592 assert_json!(r#"{local a = 3, local c = a, b: c}"#, r#"{"b": 3}"#);593 assert_json!(594 r#"{local a = function (b) {[b]:4}, test: a("test")}"#,595 r#"{"test": {"test": 4}}"#596 );597 }598599 #[test]600 fn object_comp() {601 assert_json!(602 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}"#,603 "{\"h1_2\": \"0a\",\"h1_3\": \"0a\",\"h1_4\": \"0a\",\"h2_3\": \"a1\",\"h2_4\": \"a1\",\"h3_2\": \"0a\",\"h3_4\": \"a1\"}"604 )605 }606607 #[test]608 fn direct_self() {609 println!(610 "{:#?}",611 eval!(612 r#"613 {614 local me = self,615 a: 3,616 b(): me.a,617 }618 "#619 )620 );621 }622623 #[test]624 fn indirect_self() {625 // `self` assigned to `me` was lost when being626 // referenced from field627 eval!(628 r#"{629 local me = self,630 a: 3,631 b: me.a,632 }.b"#633 );634 }635636 // We can't trust other tests (And official jsonnet testsuite), if assert is not working correctly637 #[test]638 fn std_assert_ok() {639 eval!("std.assertEqual(4.5 << 2, 16)");640 }641642 #[test]643 #[should_panic]644 fn std_assert_failure() {645 eval!("std.assertEqual(4.5 << 2, 15)");646 }647648 #[test]649 fn string_is_string() {650 assert!(primitive_equals(651 &eval!("local arr = 'hello'; (!std.isArray(arr)) && (!std.isString(arr))"),652 &Val::Bool(false),653 )654 .unwrap());655 }656657 #[test]658 fn base64_works() {659 assert_json!(r#"std.base64("test")"#, r#""dGVzdA==""#);660 }661662 #[test]663 fn utf8_chars() {664 assert_json!(665 r#"local c="😎";{c:std.codepoint(c),l:std.length(c)}"#,666 r#"{"c": 128526,"l": 1}"#667 )668 }669670 #[test]671 fn json() {672 assert_json!(673 r#"std.manifestJsonEx({a:3, b:4, c:6},"")"#,674 r#""{\n\"a\": 3,\n\"b\": 4,\n\"c\": 6\n}""#675 );676 }677678 #[test]679 fn test() {680 assert_json!(681 r#"[[a, b] for a in [1,2,3] for b in [4,5,6]]"#,682 "[[1,4],[1,5],[1,6],[2,4],[2,5],[2,6],[3,4],[3,5],[3,6]]"683 );684 }685686 #[test]687 fn sjsonnet() {688 eval!(689 r#"690 local x0 = {k: 1};691 local x1 = {k: x0.k + x0.k};692 local x2 = {k: x1.k + x1.k};693 local x3 = {k: x2.k + x2.k};694 local x4 = {k: x3.k + x3.k};695 local x5 = {k: x4.k + x4.k};696 local x6 = {k: x5.k + x5.k};697 local x7 = {k: x6.k + x6.k};698 local x8 = {k: x7.k + x7.k};699 local x9 = {k: x8.k + x8.k};700 local x10 = {k: x9.k + x9.k};701 local x11 = {k: x10.k + x10.k};702 local x12 = {k: x11.k + x11.k};703 local x13 = {k: x12.k + x12.k};704 local x14 = {k: x13.k + x13.k};705 local x15 = {k: x14.k + x14.k};706 local x16 = {k: x15.k + x15.k};707 local x17 = {k: x16.k + x16.k};708 local x18 = {k: x17.k + x17.k};709 local x19 = {k: x18.k + x18.k};710 local x20 = {k: x19.k + x19.k};711 local x21 = {k: x20.k + x20.k};712 x21.k713 "#714 );715 }716717 use test::Bencher;718719 // This test is commented out by default, because of huge compilation slowdown720 // #[bench]721 // fn bench_codegen(b: &mut Bencher) {722 // b.iter(|| {723 // #[allow(clippy::all)]724 // let stdlib = {725 // use jrsonnet_parser::*;726 // include!(concat!(env!("OUT_DIR"), "/stdlib.rs"))727 // };728 // stdlib729 // })730 // }731732 #[bench]733 fn bench_serialize(b: &mut Bencher) {734 b.iter(|| {735 bincode::deserialize::<jrsonnet_parser::LocExpr>(include_bytes!(concat!(736 env!("OUT_DIR"),737 "/stdlib.bincode"738 )))739 .expect("deserialize stdlib")740 })741 }742743 #[bench]744 fn bench_parse(b: &mut Bencher) {745 b.iter(|| {746 jrsonnet_parser::parse(747 jrsonnet_stdlib::STDLIB_STR,748 &jrsonnet_parser::ParserSettings {749 loc_data: true,750 file_name: Rc::new(PathBuf::from("std.jsonnet")),751 },752 )753 })754 }755756 #[test]757 fn equality() {758 println!(759 "{:?}",760 jrsonnet_parser::parse(761 "{ x: 1, y: 2 } == { x: 1, y: 2 }",762 &ParserSettings::default()763 )764 );765 assert_eval!("{ x: 1, y: 2 } == { x: 1, y: 2 }")766 }767}1#![feature(box_syntax, box_patterns)]2#![feature(type_alias_impl_trait)]3#![feature(debug_non_exhaustive)]4#![feature(test)]5#![feature(stmt_expr_attributes)]6#![allow(macro_expanded_macro_exports_accessed_by_absolute_paths)]78extern crate test;910mod builtin;11mod ctx;12mod dynamic;13mod error;14mod evaluate;15mod function;16mod import;17mod map;18mod obj;19pub mod trace;20mod val;2122pub use ctx::*;23pub use dynamic::*;24pub use error::*;25pub use evaluate::*;26pub use function::parse_function_call;27pub use import::*;28use jrsonnet_parser::*;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 LazyBinding::Bindable(v) => v(this, super_obj),56 LazyBinding::Bound(v) => Ok(v.clone()),57 }58 }59}6061#[derive(Clone)]62pub enum ManifestFormat {63 Yaml(usize),64 Json(usize),65 None,66}6768pub struct EvaluationSettings {69 /// Limits recursion by limiting stack frames70 pub max_stack: usize,71 /// Limit amount of stack trace items preserved72 pub max_trace: usize,73 /// Used for std.extVar74 pub ext_vars: HashMap<Rc<str>, Val>,75 /// TLA vars76 pub tla_vars: HashMap<Rc<str>, Val>,77 /// Global variables are inserted in default context78 pub globals: HashMap<Rc<str>, Val>,79 /// Used to resolve file locations/contents80 pub import_resolver: Box<dyn ImportResolver>,81 /// Used in manifestification functions82 pub manifest_format: ManifestFormat,83 /// Used for bindings84 pub trace_format: Box<dyn TraceFormat>,85}86impl Default for EvaluationSettings {87 fn default() -> Self {88 EvaluationSettings {89 max_stack: 200,90 max_trace: 20,91 globals: Default::default(),92 ext_vars: Default::default(),93 tla_vars: Default::default(),94 import_resolver: Box::new(DummyImportResolver),95 manifest_format: ManifestFormat::Json(4),96 trace_format: Box::new(CompactFormat {97 padding: 4,98 resolver: trace::PathResolver::Absolute,99 }),100 }101 }102}103104#[derive(Default)]105struct EvaluationData {106 /// Used for stack overflow detection, stacktrace is now populated on unwind107 stack_depth: usize,108 /// Contains file source codes and evaluated results for imports and pretty109 /// printing stacktraces110 files: HashMap<Rc<PathBuf>, FileData>,111 str_files: HashMap<Rc<PathBuf>, Rc<str>>,112}113114pub struct FileData {115 source_code: Rc<str>,116 parsed: LocExpr,117 evaluated: Option<Val>,118}119#[derive(Default)]120pub struct EvaluationStateInternals {121 /// Internal state122 data: RefCell<EvaluationData>,123 /// Settings, safe to change at runtime124 settings: RefCell<EvaluationSettings>,125}126127thread_local! {128 /// Contains state for currently executing file129 /// Global state is fine there130 pub(crate) static EVAL_STATE: RefCell<Option<EvaluationState>> = RefCell::new(None)131}132pub(crate) fn with_state<T>(f: impl FnOnce(&EvaluationState) -> T) -> T {133 EVAL_STATE.with(|s| f(s.borrow().as_ref().unwrap()))134}135pub fn create_error(err: Error) -> LocError {136 LocError(err, StackTrace(vec![]))137}138pub fn create_error_result<T>(err: Error) -> Result<T> {139 Err(LocError(err, StackTrace(vec![])))140}141pub(crate) fn push<T>(142 e: &Option<ExprLocation>,143 frame_desc: impl FnOnce() -> String,144 f: impl FnOnce() -> Result<T>,145) -> Result<T> {146 if let Some(v) = e {147 with_state(|s| s.push(&v, frame_desc, f))148 } else {149 f()150 }151}152153/// Maintains stack trace and import resolution154#[derive(Default, Clone)]155pub struct EvaluationState(Rc<EvaluationStateInternals>);156157impl EvaluationState {158 /// Parses and adds file to loaded159 pub fn add_file(&self, path: Rc<PathBuf>, source_code: Rc<str>) -> Result<()> {160 self.add_parsed_file(161 path.clone(),162 source_code.clone(),163 parse(164 &source_code,165 &ParserSettings {166 file_name: path.clone(),167 loc_data: true,168 },169 )170 .map_err(|error| {171 create_error(Error::ImportSyntaxError {172 error,173 path,174 source_code,175 })176 })?,177 )?;178179 Ok(())180 }181182 /// Adds file by source code and parsed expr183 pub fn add_parsed_file(184 &self,185 name: Rc<PathBuf>,186 source_code: Rc<str>,187 parsed: LocExpr,188 ) -> Result<()> {189 self.data_mut().files.insert(190 name,191 FileData {192 source_code,193 parsed,194 evaluated: None,195 },196 );197198 Ok(())199 }200 pub fn get_source(&self, name: &PathBuf) -> Option<Rc<str>> {201 let ro_map = &self.data().files;202 ro_map.get(name).map(|value| value.source_code.clone())203 }204 pub fn map_source_locations(&self, file: &PathBuf, locs: &[usize]) -> Vec<CodeLocation> {205 offset_to_location(&self.get_source(file).unwrap(), locs)206 }207208 pub(crate) fn import_file(&self, from: &PathBuf, path: &PathBuf) -> Result<Val> {209 let file_path = self.resolve_file(from, path)?;210 {211 let files = &self.data().files;212 if files.contains_key(&file_path) {213 return self.evaluate_loaded_file_raw(&file_path);214 }215 }216 let contents = self.load_file_contents(&file_path)?;217 self.add_file(file_path.clone(), contents)?;218 self.evaluate_loaded_file_raw(&file_path)219 }220 pub(crate) fn import_file_str(&self, from: &PathBuf, path: &PathBuf) -> Result<Rc<str>> {221 let path = self.resolve_file(from, path)?;222 if !self.data().str_files.contains_key(&path) {223 let file_str = self.load_file_contents(&path)?;224 self.data_mut().str_files.insert(path.clone(), file_str);225 }226 Ok(self.data().str_files.get(&path).cloned().unwrap())227 }228229 fn evaluate_loaded_file_raw(&self, name: &PathBuf) -> Result<Val> {230 let expr: LocExpr = {231 let ro_map = &self.data().files;232 let value = ro_map233 .get(name)234 .unwrap_or_else(|| panic!("file not added: {:?}", name));235 if let Some(ref evaluated) = value.evaluated {236 return Ok(evaluated.clone());237 }238 value.parsed.clone()239 };240 let value = evaluate(self.create_default_context()?, &expr)?;241 {242 self.data_mut()243 .files244 .get_mut(name)245 .unwrap()246 .evaluated247 .replace(value.clone());248 }249 Ok(value)250 }251252 /// Adds standard library global variable (std) to this evaluator253 pub fn with_stdlib(&self) -> &Self {254 use jrsonnet_stdlib::STDLIB_STR;255 let std_path = Rc::new(PathBuf::from("std.jsonnet"));256 self.run_in_state(|| {257 self.add_parsed_file(258 std_path.clone(),259 STDLIB_STR.to_owned().into(),260 builtin::get_parsed_stdlib(),261 )262 .unwrap();263 let val = self.evaluate_loaded_file_raw(&std_path).unwrap();264 self.settings_mut().globals.insert("std".into(), val);265 });266 self267 }268269 /// Creates context with all passed global variables270 pub fn create_default_context(&self) -> Result<Context> {271 let globals = &self.settings().globals;272 let mut new_bindings: HashMap<Rc<str>, LazyBinding> = HashMap::new();273 for (name, value) in globals.iter() {274 new_bindings.insert(275 name.clone(),276 LazyBinding::Bound(resolved_lazy_val!(value.clone())),277 );278 }279 Context::new().extend_unbound(new_bindings, None, None, None)280 }281282 /// Executes code, creating new stack frame283 pub fn push<T>(284 &self,285 e: &ExprLocation,286 frame_desc: impl FnOnce() -> String,287 f: impl FnOnce() -> Result<T>,288 ) -> Result<T> {289 {290 let mut data = self.data_mut();291 let stack_depth = &mut data.stack_depth;292 if *stack_depth > self.max_stack() {293 // Error creation uses data, so i drop guard here294 drop(data);295 return Err(create_error(Error::StackOverflow));296 } else {297 *stack_depth += 1;298 }299 }300 let result = f();301 self.data_mut().stack_depth -= 1;302 if let Err(mut err) = result {303 (err.1).0.push(StackTraceElement {304 location: e.clone(),305 desc: frame_desc(),306 });307 return Err(err);308 }309 result310 }311312 /// Runs passed function in state (required, if function needs to modify stack trace)313 pub fn run_in_state<T>(&self, f: impl FnOnce() -> T) -> T {314 EVAL_STATE.with(|v| {315 let has_state = v.borrow().is_some();316 if !has_state {317 v.borrow_mut().replace(self.clone());318 }319 let result = f();320 if !has_state {321 v.borrow_mut().take();322 }323 result324 })325 }326327 pub fn stringify_err(&self, e: &LocError) -> String {328 let mut out = String::new();329 self.settings()330 .trace_format331 .write_trace(&mut out, self, e)332 .unwrap();333 out334 }335336 pub fn manifest(&self, val: Val) -> Result<Rc<str>> {337 Ok(match self.manifest_format() {338 ManifestFormat::Yaml(padding) => val.into_yaml(padding)?,339 ManifestFormat::Json(padding) => val.into_json(padding)?,340 ManifestFormat::None => match val {341 Val::Str(s) => s,342 _ => return Err(create_error(Error::StringManifestOutputIsNotAString)),343 },344 })345 }346347 /// If passed value is function - call with set TLA348 pub fn with_tla(&self, val: Val) -> Result<Val> {349 Ok(match val {350 Val::Func(func) => func.evaluate_map(351 self.create_default_context()?,352 &self.settings().tla_vars,353 true,354 )?,355 v => v,356 })357 }358}359360/// Internals361impl 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}375376/// Raw methods evaluates passed values, but not performs TLA execution377impl EvaluationState {378 pub fn evaluate_file_raw(&self, name: &PathBuf) -> Result<Val> {379 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.import_file(&PathBuf::from("."), &name)383 }384 /// Parses and evaluates snippet385 pub fn evaluate_snippet_raw(&self, source: Rc<PathBuf>, code: Rc<str>) -> 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 /// Evaluates parsed expression398 pub fn evaluate_expr_raw(&self, code: LocExpr) -> Result<Val> {399 evaluate(self.create_default_context()?, &code)400 }401}402403/// Settings utilities404impl EvaluationState {405 pub fn add_ext_var(&self, name: Rc<str>, value: Val) {406 self.settings_mut().ext_vars.insert(name, value);407 }408 pub fn add_ext_str(&self, name: Rc<str>, value: Rc<str>) {409 self.add_ext_var(name, Val::Str(value));410 }411 pub fn add_ext_code(&self, name: Rc<str>, code: Rc<str>) -> 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: Rc<str>, value: Val) {419 self.settings_mut().tla_vars.insert(name, value);420 }421 pub fn add_tla_str(&self, name: Rc<str>, value: Rc<str>) {422 self.add_tla(name, Val::Str(value));423 }424 pub fn add_tla_code(&self, name: Rc<str>, code: Rc<str>) -> Result<()> {425 let value =426 self.evaluate_snippet_raw(Rc::new(PathBuf::from(format!("tla_code {}", name))), code)?;427 self.add_ext_var(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<Rc<str>> {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 manifest_format(&self) -> ManifestFormat {446 self.settings().manifest_format.clone()447 }448 pub fn set_manifest_format(&self, format: ManifestFormat) {449 self.settings_mut().manifest_format = format;450 }451452 pub fn trace_format(&self) -> Ref<dyn TraceFormat> {453 Ref::map(self.settings(), |s| &*s.trace_format)454 }455 pub fn set_trace_format(&self, format: Box<dyn TraceFormat>) {456 self.settings_mut().trace_format = format;457 }458459 pub fn max_trace(&self) -> usize {460 self.settings().max_trace461 }462 pub fn set_max_trace(&self, trace: usize) {463 self.settings_mut().max_trace = trace;464 }465466 pub fn max_stack(&self) -> usize {467 self.settings().max_stack468 }469 pub fn set_max_stack(&self, trace: usize) {470 self.settings_mut().max_stack = trace;471 }472}473474#[cfg(test)]475pub mod tests {476 use super::Val;477 use crate::{create_error, primitive_equals, EvaluationState};478 use jrsonnet_parser::*;479 use std::{path::PathBuf, rc::Rc};480481 #[test]482 fn eval_state_stacktrace() {483 let state = EvaluationState::default();484 state.run_in_state(|| {485 state486 .push(487 &ExprLocation(Rc::new(PathBuf::from("test1.jsonnet")), 10, 20),488 || "outer".to_owned(),489 || {490 state.push(491 &ExprLocation(Rc::new(PathBuf::from("test2.jsonnet")), 30, 40),492 || "inner".to_owned(),493 || Err(create_error(crate::error::Error::RuntimeError("".into()))),494 )?;495 Ok(())496 },497 )498 .unwrap();499 });500 }501502 #[test]503 fn eval_state_standard() {504 let state = EvaluationState::default();505 state.with_stdlib();506 assert!(primitive_equals(507 &state508 .evaluate_snippet_raw(509 Rc::new(PathBuf::from("raw.jsonnet")),510 r#"std.assertEqual(std.base64("test"), "dGVzdA==")"#.into()511 )512 .unwrap(),513 &Val::Bool(true),514 )515 .unwrap());516 }517518 macro_rules! eval {519 ($str: expr) => {520 EvaluationState::default()521 .with_stdlib()522 .evaluate_snippet_raw(Rc::new(PathBuf::from("raw.jsonnet")), $str.into())523 .unwrap()524 };525 }526 macro_rules! eval_json {527 ($str: expr) => {{528 let evaluator = EvaluationState::default();529 evaluator.with_stdlib();530 evaluator.run_in_state(|| {531 evaluator532 .evaluate_snippet_raw(Rc::new(PathBuf::from("raw.jsonnet")), $str.into())533 .unwrap()534 .into_json(0)535 .unwrap()536 .replace("\n", "")537 })538 }};539 }540541 /// Asserts given code returns `true`542 macro_rules! assert_eval {543 ($str: expr) => {544 assert!(primitive_equals(&eval!($str), &Val::Bool(true)).unwrap())545 };546 }547548 /// Asserts given code returns `false`549 macro_rules! assert_eval_neg {550 ($str: expr) => {551 assert!(primitive_equals(&eval!($str), &Val::Bool(false)).unwrap())552 };553 }554 macro_rules! assert_json {555 ($str: expr, $out: expr) => {556 assert_eq!(eval_json!($str), $out.replace("\t", ""))557 };558 }559560 /// Sanity checking, before trusting to another tests561 #[test]562 fn equality_operator() {563 assert_eval!("2 == 2");564 assert_eval_neg!("2 != 2");565 assert_eval!("2 != 3");566 assert_eval_neg!("2 == 3");567 assert_eval!("'Hello' == 'Hello'");568 assert_eval_neg!("'Hello' != 'Hello'");569 assert_eval!("'Hello' != 'World'");570 assert_eval_neg!("'Hello' == 'World'");571 }572573 #[test]574 fn math_evaluation() {575 assert_eval!("2 + 2 * 2 == 6");576 assert_eval!("3 + (2 + 2 * 2) == 9");577 }578579 #[test]580 fn string_concat() {581 assert_eval!("'Hello' + 'World' == 'HelloWorld'");582 assert_eval!("'Hello' * 3 == 'HelloHelloHello'");583 assert_eval!("'Hello' + 'World' * 3 == 'HelloWorldWorldWorld'");584 }585586 #[test]587 fn faster_join() {588 assert_eval!("std.join([0,0], [[1,2],[3,4],[5,6]]) == [1,2,0,0,3,4,0,0,5,6]");589 assert_eval!("std.join(',', ['1','2','3','4']) == '1,2,3,4'");590 }591592 #[test]593 fn function_contexts() {594 assert_eval!(595 r#"596 local k = {597 t(name = self.h): [self.h, name],598 h: 3,599 };600 local f = {601 t: k.t(),602 h: 4,603 };604 f.t[0] == f.t[1]605 "#606 );607 }608609 #[test]610 fn local() {611 assert_eval!("local a = 2; local b = 3; a + b == 5");612 assert_eval!("local a = 1, b = a + 1; a + b == 3");613 assert_eval!("local a = 1; local a = 2; a == 2");614 }615616 #[test]617 fn object_lazyness() {618 assert_json!("local a = {a:error 'test'}; {}", r#"{}"#);619 }620621 #[test]622 fn object_inheritance() {623 assert_json!("{a: self.b} + {b:3}", r#"{"a": 3,"b": 3}"#);624 }625626 #[test]627 fn object_assertion_success() {628 eval!("{assert \"a\" in self} + {a:2}");629 }630631 #[test]632 fn object_assertion_error() {633 eval!("{assert \"a\" in self}");634 }635636 #[test]637 fn lazy_args() {638 eval!("local test(a) = 2; test(error '3')");639 }640641 #[test]642 #[should_panic]643 fn tailstrict_args() {644 eval!("local test(a) = 2; test(error '3') tailstrict");645 }646647 #[test]648 #[should_panic]649 fn no_binding_error() {650 eval!("a");651 }652653 #[test]654 fn test_object() {655 assert_json!("{a:2}", r#"{"a": 2}"#);656 assert_json!("{a:2+2}", r#"{"a": 4}"#);657 assert_json!("{a:2}+{b:2}", r#"{"a": 2,"b": 2}"#);658 assert_json!("{b:3}+{b:2}", r#"{"b": 2}"#);659 assert_json!("{b:3}+{b+:2}", r#"{"b": 5}"#);660 assert_json!("local test='a'; {[test]:2}", r#"{"a": 2}"#);661 assert_json!(662 r#"663 {664 name: "Alice",665 welcome: "Hello " + self.name + "!",666 }667 "#,668 r#"{"name": "Alice","welcome": "Hello Alice!"}"#669 );670 assert_json!(671 r#"672 {673 name: "Alice",674 welcome: "Hello " + self.name + "!",675 } + {676 name: "Bob"677 }678 "#,679 r#"{"name": "Bob","welcome": "Hello Bob!"}"#680 );681 }682683 #[test]684 fn functions() {685 assert_json!(r#"local a = function(b, c = 2) b + c; a(2)"#, "4");686 assert_json!(687 r#"local a = function(b, c = "Dear") b + c + d, d = "World"; a("Hello")"#,688 r#""HelloDearWorld""#689 );690 }691692 #[test]693 fn local_methods() {694 assert_json!(r#"local a(b, c = 2) = b + c; a(2)"#, "4");695 assert_json!(696 r#"local a(b, c = "Dear") = b + c + d, d = "World"; a("Hello")"#,697 r#""HelloDearWorld""#698 );699 }700701 #[test]702 fn object_locals() {703 assert_json!(r#"{local a = 3, b: a}"#, r#"{"b": 3}"#);704 assert_json!(r#"{local a = 3, local c = a, b: c}"#, r#"{"b": 3}"#);705 assert_json!(706 r#"{local a = function (b) {[b]:4}, test: a("test")}"#,707 r#"{"test": {"test": 4}}"#708 );709 }710711 #[test]712 fn object_comp() {713 assert_json!(714 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}"#,715 "{\"h1_2\": \"0a\",\"h1_3\": \"0a\",\"h1_4\": \"0a\",\"h2_3\": \"a1\",\"h2_4\": \"a1\",\"h3_2\": \"0a\",\"h3_4\": \"a1\"}"716 )717 }718719 #[test]720 fn direct_self() {721 println!(722 "{:#?}",723 eval!(724 r#"725 {726 local me = self,727 a: 3,728 b(): me.a,729 }730 "#731 )732 );733 }734735 #[test]736 fn indirect_self() {737 // `self` assigned to `me` was lost when being738 // referenced from field739 eval!(740 r#"{741 local me = self,742 a: 3,743 b: me.a,744 }.b"#745 );746 }747748 // We can't trust other tests (And official jsonnet testsuite), if assert is not working correctly749 #[test]750 fn std_assert_ok() {751 eval!("std.assertEqual(4.5 << 2, 16)");752 }753754 #[test]755 #[should_panic]756 fn std_assert_failure() {757 eval!("std.assertEqual(4.5 << 2, 15)");758 }759760 #[test]761 fn string_is_string() {762 assert!(primitive_equals(763 &eval!("local arr = 'hello'; (!std.isArray(arr)) && (!std.isString(arr))"),764 &Val::Bool(false),765 )766 .unwrap());767 }768769 #[test]770 fn base64_works() {771 assert_json!(r#"std.base64("test")"#, r#""dGVzdA==""#);772 }773774 #[test]775 fn utf8_chars() {776 assert_json!(777 r#"local c="😎";{c:std.codepoint(c),l:std.length(c)}"#,778 r#"{"c": 128526,"l": 1}"#779 )780 }781782 #[test]783 fn json() {784 assert_json!(785 r#"std.manifestJsonEx({a:3, b:4, c:6},"")"#,786 r#""{\n\"a\": 3,\n\"b\": 4,\n\"c\": 6\n}""#787 );788 }789790 #[test]791 fn test() {792 assert_json!(793 r#"[[a, b] for a in [1,2,3] for b in [4,5,6]]"#,794 "[[1,4],[1,5],[1,6],[2,4],[2,5],[2,6],[3,4],[3,5],[3,6]]"795 );796 }797798 #[test]799 fn sjsonnet() {800 eval!(801 r#"802 local x0 = {k: 1};803 local x1 = {k: x0.k + x0.k};804 local x2 = {k: x1.k + x1.k};805 local x3 = {k: x2.k + x2.k};806 local x4 = {k: x3.k + x3.k};807 local x5 = {k: x4.k + x4.k};808 local x6 = {k: x5.k + x5.k};809 local x7 = {k: x6.k + x6.k};810 local x8 = {k: x7.k + x7.k};811 local x9 = {k: x8.k + x8.k};812 local x10 = {k: x9.k + x9.k};813 local x11 = {k: x10.k + x10.k};814 local x12 = {k: x11.k + x11.k};815 local x13 = {k: x12.k + x12.k};816 local x14 = {k: x13.k + x13.k};817 local x15 = {k: x14.k + x14.k};818 local x16 = {k: x15.k + x15.k};819 local x17 = {k: x16.k + x16.k};820 local x18 = {k: x17.k + x17.k};821 local x19 = {k: x18.k + x18.k};822 local x20 = {k: x19.k + x19.k};823 local x21 = {k: x20.k + x20.k};824 x21.k825 "#826 );827 }828829 use test::Bencher;830831 // This test is commented out by default, because of huge compilation slowdown832 // #[bench]833 // fn bench_codegen(b: &mut Bencher) {834 // b.iter(|| {835 // #[allow(clippy::all)]836 // let stdlib = {837 // use jrsonnet_parser::*;838 // include!(concat!(env!("OUT_DIR"), "/stdlib.rs"))839 // };840 // stdlib841 // })842 // }843844 #[bench]845 fn bench_serialize(b: &mut Bencher) {846 b.iter(|| {847 bincode::deserialize::<jrsonnet_parser::LocExpr>(include_bytes!(concat!(848 env!("OUT_DIR"),849 "/stdlib.bincode"850 )))851 .expect("deserialize stdlib")852 })853 }854855 #[bench]856 fn bench_parse(b: &mut Bencher) {857 b.iter(|| {858 jrsonnet_parser::parse(859 jrsonnet_stdlib::STDLIB_STR,860 &jrsonnet_parser::ParserSettings {861 loc_data: true,862 file_name: Rc::new(PathBuf::from("std.jsonnet")),863 },864 )865 })866 }867868 #[test]869 fn equality() {870 println!(871 "{:?}",872 jrsonnet_parser::parse(873 "{ x: 1, y: 2 } == { x: 1, y: 2 }",874 &ParserSettings::default()875 )876 );877 assert_eval!("{ x: 1, y: 2 } == { x: 1, y: 2 }")878 }879}