1use std::{2 cell::{Ref, RefCell, RefMut},3 collections::HashMap,4 rc::Rc,5};67use jrsonnet_evaluator::{8 error::{Error::*, Result},9 function::{builtin::Builtin, CallLocation, FuncVal, TlaArg},10 gc::{GcHashMap, TraceBox},11 tb,12 trace::PathResolver,13 Context, ContextBuilder, IStr, ObjValue, ObjValueBuilder, State, Thunk, Val,14};15use jrsonnet_gcmodule::{Cc, Trace};16use jrsonnet_parser::Source;1718mod expr;19mod types;20pub use types::*;21mod arrays;22pub use arrays::*;23mod math;24pub use math::*;25mod operator;26pub use operator::*;27mod sort;28pub use sort::*;29mod hash;30pub use hash::*;31mod encoding;32pub use encoding::*;33mod objects;34pub use objects::*;35mod manifest;36pub use manifest::*;37mod parse;38pub use parse::*;39mod strings;40pub use strings::*;41mod misc;42pub use misc::*;4344pub fn stdlib_uncached(settings: Rc<RefCell<Settings>>) -> ObjValue {45 let mut builder = ObjValueBuilder::new();4647 let expr = expr::stdlib_expr();48 let eval = jrsonnet_evaluator::evaluate(ContextBuilder::dangerous_empty_state().build(), &expr)49 .expect("stdlib.jsonnet should have no errors")50 .as_obj()51 .expect("stdlib.jsonnet should evaluate to object");5253 builder.with_super(eval);5455 for (name, builtin) in [56 57 ("type", builtin_type::INST),58 ("isString", builtin_is_string::INST),59 ("isNumber", builtin_is_number::INST),60 ("isBoolean", builtin_is_boolean::INST),61 ("isObject", builtin_is_object::INST),62 ("isArray", builtin_is_array::INST),63 ("isFunction", builtin_is_function::INST),64 65 ("makeArray", builtin_make_array::INST),66 ("slice", builtin_slice::INST),67 ("map", builtin_map::INST),68 ("flatMap", builtin_flatmap::INST),69 ("filter", builtin_filter::INST),70 ("foldl", builtin_foldl::INST),71 ("foldr", builtin_foldr::INST),72 ("range", builtin_range::INST),73 ("join", builtin_join::INST),74 ("reverse", builtin_reverse::INST),75 ("any", builtin_any::INST),76 ("all", builtin_all::INST),77 ("member", builtin_member::INST),78 ("count", builtin_count::INST),79 80 ("modulo", builtin_modulo::INST),81 ("floor", builtin_floor::INST),82 ("ceil", builtin_ceil::INST),83 ("log", builtin_log::INST),84 ("pow", builtin_pow::INST),85 ("sqrt", builtin_sqrt::INST),86 ("sin", builtin_sin::INST),87 ("cos", builtin_cos::INST),88 ("tan", builtin_tan::INST),89 ("asin", builtin_asin::INST),90 ("acos", builtin_acos::INST),91 ("atan", builtin_atan::INST),92 ("exp", builtin_exp::INST),93 ("mantissa", builtin_mantissa::INST),94 ("exponent", builtin_exponent::INST),95 96 ("mod", builtin_mod::INST),97 ("primitiveEquals", builtin_primitive_equals::INST),98 ("equals", builtin_equals::INST),99 ("format", builtin_format::INST),100 101 ("sort", builtin_sort::INST),102 103 ("md5", builtin_md5::INST),104 105 ("encodeUTF8", builtin_encode_utf8::INST),106 ("decodeUTF8", builtin_decode_utf8::INST),107 ("base64", builtin_base64::INST),108 ("base64Decode", builtin_base64_decode::INST),109 ("base64DecodeBytes", builtin_base64_decode_bytes::INST),110 111 ("objectFieldsEx", builtin_object_fields_ex::INST),112 ("objectHasEx", builtin_object_has_ex::INST),113 114 ("escapeStringJson", builtin_escape_string_json::INST),115 ("manifestJsonEx", builtin_manifest_json_ex::INST),116 ("manifestYamlDoc", builtin_manifest_yaml_doc::INST),117 118 ("parseJson", builtin_parse_json::INST),119 ("parseYaml", builtin_parse_yaml::INST),120 121 ("codepoint", builtin_codepoint::INST),122 ("substr", builtin_substr::INST),123 ("char", builtin_char::INST),124 ("strReplace", builtin_str_replace::INST),125 ("splitLimit", builtin_splitlimit::INST),126 ("asciiUpper", builtin_ascii_upper::INST),127 ("asciiLower", builtin_ascii_lower::INST),128 ("findSubstr", builtin_find_substr::INST),129 130 ("length", builtin_length::INST),131 ("startsWith", builtin_starts_with::INST),132 ("endsWith", builtin_ends_with::INST),133 ]134 .iter()135 .cloned()136 {137 builder138 .member(name.into())139 .hide()140 .value(Val::Func(FuncVal::StaticBuiltin(builtin)))141 .expect("no conflict");142 }143144 builder145 .member("extVar".into())146 .hide()147 .value(Val::Func(FuncVal::Builtin(Cc::new(tb!(builtin_ext_var {148 settings: settings.clone()149 })))))150 .expect("no conflict");151 builder152 .member("native".into())153 .hide()154 .value(Val::Func(FuncVal::Builtin(Cc::new(tb!(builtin_native {155 settings: settings.clone()156 })))))157 .expect("no conflict");158 builder159 .member("trace".into())160 .hide()161 .value(Val::Func(FuncVal::Builtin(Cc::new(tb!(builtin_trace {162 settings163 })))))164 .expect("no conflict");165166 builder167 .member("id".into())168 .hide()169 .value(Val::Func(FuncVal::Id))170 .expect("no conflict");171172 builder.build()173}174175pub trait TracePrinter {176 fn print_trace(&self, loc: CallLocation, value: IStr);177}178179pub struct StdTracePrinter {180 resolver: PathResolver,181}182impl StdTracePrinter {183 pub fn new(resolver: PathResolver) -> Self {184 Self { resolver }185 }186}187impl TracePrinter for StdTracePrinter {188 fn print_trace(&self, loc: CallLocation, value: IStr) {189 eprint!("TRACE:");190 if let Some(loc) = loc.0 {191 let locs = loc.0.map_source_locations(&[loc.1]);192 eprint!(193 " {}:{}",194 match loc.0.source_path().path() {195 Some(p) => self.resolver.resolve(p),196 None => loc.0.source_path().to_string(),197 },198 locs[0].line199 );200 }201 eprintln!(" {}", value);202 }203}204205pub struct Settings {206 207 pub ext_vars: HashMap<IStr, TlaArg>,208 209 pub ext_natives: HashMap<IStr, Cc<TraceBox<dyn Builtin>>>,210 211 pub globals: GcHashMap<IStr, Thunk<Val>>,212 213 pub trace_printer: Box<dyn TracePrinter>,214 215 pub path_resolver: PathResolver,216}217218pub fn extvar_source(name: &str, code: impl Into<IStr>) -> Source {219 let source_name = format!("<extvar:{}>", name);220 Source::new_virtual(source_name.into(), code.into())221}222223#[derive(Trace)]224pub struct ContextInitializer {225 226 #[cfg(not(feature = "legacy-this-file"))]227 context: Context,228 229 #[cfg(feature = "legacy-this-file")]230 stdlib_obj: ObjValue,231 settings: Rc<RefCell<Settings>>,232}233impl ContextInitializer {234 pub fn new(s: State, resolver: PathResolver) -> Self {235 let settings = Settings {236 ext_vars: Default::default(),237 ext_natives: Default::default(),238 globals: Default::default(),239 trace_printer: Box::new(StdTracePrinter::new(resolver.clone())),240 path_resolver: resolver,241 };242 let settings = Rc::new(RefCell::new(settings));243 Self {244 #[cfg(not(feature = "legacy-this-file"))]245 context: {246 let mut context = ContextBuilder::with_capacity(s, 1);247 context.bind(248 "std".into(),249 Thunk::evaluated(Val::Obj(stdlib_uncached(settings.clone()))),250 );251 context.build()252 },253 #[cfg(feature = "legacy-this-file")]254 stdlib_obj: stdlib_uncached(s, settings.clone()),255 settings,256 }257 }258 pub fn settings(&self) -> Ref<Settings> {259 self.settings.borrow()260 }261 pub fn settings_mut(&self) -> RefMut<Settings> {262 self.settings.borrow_mut()263 }264 pub fn add_ext_var(&self, name: IStr, value: Val) {265 self.settings_mut()266 .ext_vars267 .insert(name, TlaArg::Val(value));268 }269 pub fn add_ext_str(&self, name: IStr, value: IStr) {270 self.settings_mut()271 .ext_vars272 .insert(name, TlaArg::String(value));273 }274 pub fn add_ext_code(&self, name: &str, code: impl Into<IStr>) -> Result<()> {275 let code = code.into();276 let source = extvar_source(name, code.clone());277 let parsed = jrsonnet_parser::parse(278 &code,279 &jrsonnet_parser::ParserSettings {280 file_name: source.clone(),281 },282 )283 .map_err(|e| ImportSyntaxError {284 path: source,285 error: Box::new(e),286 })?;287 288 self.settings_mut()289 .ext_vars290 .insert(name.into(), TlaArg::Code(parsed));291 Ok(())292 }293 pub fn add_native(&self, name: IStr, cb: Cc<TraceBox<dyn Builtin>>) {294 self.settings_mut().ext_natives.insert(name, cb);295 }296}297impl jrsonnet_evaluator::ContextInitializer for ContextInitializer {298 #[cfg(not(feature = "legacy-this-file"))]299 fn initialize(&self, _s: State, _source: Source) -> jrsonnet_evaluator::Context {300 let out = self.context.clone();301 let globals = &self.settings().globals;302 if globals.is_empty() {303 return out;304 }305306 let mut out = ContextBuilder::extend(out);307 for (k, v) in globals.iter() {308 out.bind(k.clone(), v.clone());309 }310 out.build()311 }312 #[cfg(feature = "legacy-this-file")]313 fn initialize(&self, s: State, source: Source) -> jrsonnet_evaluator::Context {314 let mut builder = ObjValueBuilder::new();315 builder.with_super(self.stdlib_obj.clone());316 builder317 .member("thisFile".into())318 .hide()319 .value(320 s,321 Val::Str(match source.source_path().path() {322 Some(p) => self.settings().path_resolver.resolve(p).into(),323 None => source.source_path().to_string().into(),324 }),325 )326 .expect("this object builder is empty");327 let stdlib_with_this_file = builder.build();328329 let mut context = ContextBuilder::with_capacity(1);330 context.bind(331 "std".into(),332 Thunk::evaluated(Val::Obj(stdlib_with_this_file)),333 );334 for (k, v) in self.settings().globals.iter() {335 context.bind(k.clone(), v.clone());336 }337 context.build()338 }339 fn as_any(&self) -> &dyn std::any::Any {340 self341 }342}343344pub trait StateExt {345 346 fn with_stdlib(&self);347 fn add_global(&self, name: IStr, value: Thunk<Val>);348}349350impl StateExt for State {351 fn with_stdlib(&self) {352 let initializer = ContextInitializer::new(self.clone(), PathResolver::new_cwd_fallback());353 self.settings_mut().context_initializer = tb!(initializer)354 }355 fn add_global(&self, name: IStr, value: Thunk<Val>) {356 self.settings()357 .context_initializer358 .as_any()359 .downcast_ref::<ContextInitializer>()360 .expect("not standard context initializer")361 .settings_mut()362 .globals363 .insert(name, value);364 }365}