1#![feature(box_syntax, box_patterns)]2#![feature(type_alias_impl_trait)]3#![feature(debug_non_exhaustive)]4#![allow(macro_expanded_macro_exports_accessed_by_absolute_paths)]5mod ctx;6mod dynamic;7mod error;8mod evaluate;9mod obj;10mod val;1112pub use ctx::*;13pub use dynamic::*;14pub use error::*;15pub use evaluate::*;16use jsonnet_parser::*;17pub use obj::*;18use std::{cell::RefCell, collections::HashMap, rc::Rc};19pub use val::*;2021rc_fn_helper!(22 Binding,23 binding,24 dyn Fn(Option<ObjValue>, Option<ObjValue>) -> Val25);26rc_fn_helper!(27 LazyBinding,28 lazy_binding,29 dyn Fn(Option<ObjValue>, Option<ObjValue>) -> LazyVal30);31rc_fn_helper!(FunctionRhs, function_rhs, dyn Fn(Context) -> Val);32rc_fn_helper!(33 FunctionDefault,34 function_default,35 dyn Fn(Context, LocExpr) -> Val36);3738#[derive(Default, Clone)]39pub struct EvaluationState {40 41 pub stack: Rc<RefCell<Vec<(LocExpr, String)>>>,42 43 pub files: Rc<RefCell<HashMap<String, (String, Option<Val>)>>>,44}45impl EvaluationState {46 pub fn push<T>(&self, e: LocExpr, comment: String, f: impl FnOnce() -> T) -> T {47 self.stack.borrow_mut().push((e, comment));48 let result = f();49 self.stack.borrow_mut().pop();50 result51 }52 pub fn print_stack_trace(&self) {53 for e in self54 .stack55 .borrow()56 .iter()57 .rev()58 .map(|(loc, comment)| loc.1.clone().map(|v| (v, comment.clone())))59 .flatten()60 {61 println!("{:?} - {:?}", e.0, e.1)62 }63 }64 pub fn stack_trace(&self) -> Vec<(LocExpr, String)> {65 self.stack66 .borrow()67 .iter()68 .rev()69 .map(|e| e.clone())70 .collect()71 }72}7374#[cfg(test)]75pub mod tests {76 use super::{evaluate, Context, Val};77 use crate::EvaluationState;78 use jsonnet_parser::*;7980 #[test]81 fn eval_state_stacktrace() {82 let state = EvaluationState::default();83 state.push(84 loc_expr!(Expr::Num(0.0), true, ("test1.jsonnet".to_owned(), 10, 20)),85 "outer".to_owned(),86 || {87 state.push(88 loc_expr!(Expr::Num(0.0), true, ("test2.jsonnet".to_owned(), 30, 40)),89 "inner".to_owned(),90 || state.print_stack_trace(),91 );92 },93 );94 }9596 macro_rules! eval {97 ($str: expr) => {98 evaluate(99 Context::new(),100 EvaluationState::default(),101 &parse(102 $str,103 &ParserSettings {104 loc_data: true,105 file_name: "test.jsonnet".to_owned(),106 },107 )108 .unwrap(),109 )110 };111 }112113 macro_rules! eval_stdlib {114 ($str: expr) => {{115 let std = "local std = ".to_owned() + jsonnet_stdlib::STDLIB_STR + ";";116 evaluate(117 Context::new(),118 EvaluationState::default(),119 &parse(120 &(std + $str),121 &ParserSettings {122 loc_data: true,123 file_name: "test.jsonnet".to_owned(),124 },125 )126 .unwrap(),127 )128 }};129 }130131 macro_rules! assert_eval {132 ($str: expr) => {133 assert_eq!(134 evaluate(135 Context::new(),136 EvaluationState::default(),137 &parse(138 $str,139 &ParserSettings {140 loc_data: true,141 file_name: "test.jsonnet".to_owned(),142 }143 )144 .unwrap()145 ),146 Val::Bool(true)147 )148 };149 }150 macro_rules! assert_json {151 ($str: expr, $out: expr) => {152 assert_eq!(153 format!(154 "{}",155 evaluate(156 Context::new(),157 EvaluationState::default(),158 &parse(159 $str,160 &ParserSettings {161 loc_data: true,162 file_name: "test.jsonnet".to_owned(),163 }164 )165 .unwrap()166 )167 ),168 $out169 )170 };171 }172 macro_rules! assert_json_stdlib {173 ($str: expr, $out: expr) => {174 assert_eq!(format!("{}", eval_stdlib!($str)), $out)175 };176 }177 macro_rules! assert_eval_neg {178 ($str: expr) => {179 assert_eq!(180 evaluate(181 Context::new(),182 EvaluationState::default(),183 &parse(184 $str,185 &ParserSettings {186 loc_data: true,187 file_name: "test.jsonnet".to_owned(),188 }189 )190 .unwrap()191 ),192 Val::Bool(false)193 )194 };195 }196197 198 #[test]199 fn equality_operator() {200 assert_eval!("2 == 2");201 assert_eval_neg!("2 != 2");202 assert_eval!("2 != 3");203 assert_eval_neg!("2 == 3");204 assert_eval!("'Hello' == 'Hello'");205 assert_eval_neg!("'Hello' != 'Hello'");206 assert_eval!("'Hello' != 'World'");207 assert_eval_neg!("'Hello' == 'World'");208 }209210 #[test]211 fn math_evaluation() {212 assert_eval!("2 + 2 * 2 == 6");213 assert_eval!("3 + (2 + 2 * 2) == 9");214 }215216 #[test]217 fn string_concat() {218 assert_eval!("'Hello' + 'World' == 'HelloWorld'");219 assert_eval!("'Hello' * 3 == 'HelloHelloHello'");220 assert_eval!("'Hello' + 'World' * 3 == 'HelloWorldWorldWorld'");221 }222223 #[test]224 fn local() {225 assert_eval!("local a = 2; local b = 3; a + b == 5");226 assert_eval!("local a = 1, b = a + 1; a + b == 3");227 assert_eval!("local a = 1; local a = 2; a == 2");228 }229230 #[test]231 fn object_lazyness() {232 assert_json!("local a = {a:error 'test'}; {}", r#"{}"#);233 }234235 #[test]236 fn object_inheritance() {237 assert_json!("{a: self.b} + {b:3}", r#"{"a":3,"b":3}"#);238 }239240 #[test]241 fn test_object() {242 assert_json!("{a:2}", r#"{"a":2}"#);243 assert_json!("{a:2+2}", r#"{"a":4}"#);244 assert_json!("{a:2}+{b:2}", r#"{"a":2,"b":2}"#);245 assert_json!("{b:3}+{b:2}", r#"{"b":2}"#);246 assert_json!("{b:3}+{b+:2}", r#"{"b":5}"#);247 assert_json!("local test='a'; {[test]:2}", r#"{"a":2}"#);248 assert_json!(249 r#"250 {251 name: "Alice",252 welcome: "Hello " + self.name + "!",253 }254 "#,255 r#"{"name":"Alice","welcome":"Hello Alice!"}"#256 );257 assert_json!(258 r#"259 {260 name: "Alice",261 welcome: "Hello " + self.name + "!",262 } + {263 name: "Bob"264 }265 "#,266 r#"{"name":"Bob","welcome":"Hello Bob!"}"#267 );268 }269270 #[test]271 fn functions() {272 assert_json!(r#"local a = function(b, c = 2) b + c; a(2)"#, "4");273 assert_json!(274 r#"local a = function(b, c = "Dear") b + c + d, d = "World"; a("Hello")"#,275 r#""HelloDearWorld""#276 );277 }278279 #[test]280 fn local_methods() {281 assert_json!(r#"local a(b, c = 2) = b + c; a(2)"#, "4");282 assert_json!(283 r#"local a(b, c = "Dear") = b + c + d, d = "World"; a("Hello")"#,284 r#""HelloDearWorld""#285 );286 }287288 #[test]289 fn object_locals() {290 assert_json!(r#"{local a = 3, b: a}"#, r#"{"b":3}"#);291 assert_json!(r#"{local a = 3, local c = a, b: c}"#, r#"{"b":3}"#);292 assert_json!(293 r#"{local a = function (b) {[b]:4}, test: a("test")}"#,294 r#"{"test":{"test":4}}"#295 );296 }297298 #[test]299 fn direct_self() {300 println!(301 "{:#?}",302 eval!(303 r#"304 {305 local me = self,306 a: 3,307 b(): me.a,308 }309 "#310 )311 );312 }313314 #[test]315 fn indirect_self() {316 317 318 eval_stdlib!(319 r#"{320 local me = self,321 a: 3,322 b: me.a,323 }.b"#324 );325 }326327 328 #[test]329 fn std_assert_ok() {330 eval_stdlib!("std.assertEqual(4.5 << 2, 16)");331 }332333 #[test]334 #[should_panic]335 fn std_assert_failure() {336 eval_stdlib!("std.assertEqual(4.5 << 2, 15)");337 }338339 #[test]340 fn string_is_string() {341 assert_eq!(342 eval_stdlib!("local arr = 'hello'; (!std.isArray(arr)) && (!std.isString(arr))"),343 Val::Bool(false)344 );345 }346347 #[test]348 fn base64_works() {349 assert_json_stdlib!(r#"std.base64("test")"#, r#""dGVzdA==""#);350 }351352 #[test]353 fn utf8_chars() {354 assert_json_stdlib!(355 r#"local c="😎";{c:std.codepoint(c),l:std.length(c)}"#,356 r#"{"c":128526,"l":1}"#357 )358 }359360 #[test]361 fn json() {362 println!("{:?}", eval_stdlib!(r#"std.manifestJson({a:3, b:4, c:6})"#));363 }364365 #[test]366 fn sjsonnet() {367 eval!(368 r#"369 local x0 = {k: 1};370 local x1 = {k: x0.k + x0.k};371 local x2 = {k: x1.k + x1.k};372 local x3 = {k: x2.k + x2.k};373 local x4 = {k: x3.k + x3.k};374 local x5 = {k: x4.k + x4.k};375 local x6 = {k: x5.k + x5.k};376 local x7 = {k: x6.k + x6.k};377 local x8 = {k: x7.k + x7.k};378 local x9 = {k: x8.k + x8.k};379 local x10 = {k: x9.k + x9.k};380 local x11 = {k: x10.k + x10.k};381 local x12 = {k: x11.k + x11.k};382 local x13 = {k: x12.k + x12.k};383 local x14 = {k: x13.k + x13.k};384 local x15 = {k: x14.k + x14.k};385 local x16 = {k: x15.k + x15.k};386 local x17 = {k: x16.k + x16.k};387 local x18 = {k: x17.k + x17.k};388 local x19 = {k: x18.k + x18.k};389 local x20 = {k: x19.k + x19.k};390 local x21 = {k: x20.k + x20.k};391 x21.k392 "#393 );394 }395}