git.delta.rocks / jrsonnet / refs/commits / 974f2c15c0a2

1use std::{2	cell::{Ref, RefCell, RefMut},3	collections::HashMap,4	rc::Rc,5};67use jrsonnet_evaluator::{8	error::{ErrorKind::*, 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::*;43mod sets;44pub use sets::*;4546pub fn stdlib_uncached(settings: Rc<RefCell<Settings>>) -> ObjValue {47	let mut builder = ObjValueBuilder::new();4849	let expr = expr::stdlib_expr();50	let eval = jrsonnet_evaluator::evaluate(ContextBuilder::dangerous_empty_state().build(), &expr)51		.expect("stdlib.jsonnet should have no errors")52		.as_obj()53		.expect("stdlib.jsonnet should evaluate to object");5455	builder.with_super(eval);5657	for (name, builtin) in [58		// Types59		("type", builtin_type::INST),60		("isString", builtin_is_string::INST),61		("isNumber", builtin_is_number::INST),62		("isBoolean", builtin_is_boolean::INST),63		("isObject", builtin_is_object::INST),64		("isArray", builtin_is_array::INST),65		("isFunction", builtin_is_function::INST),66		// Arrays67		("makeArray", builtin_make_array::INST),68		("repeat", builtin_repeat::INST),69		("slice", builtin_slice::INST),70		("map", builtin_map::INST),71		("flatMap", builtin_flatmap::INST),72		("filter", builtin_filter::INST),73		("foldl", builtin_foldl::INST),74		("foldr", builtin_foldr::INST),75		("range", builtin_range::INST),76		("join", builtin_join::INST),77		("reverse", builtin_reverse::INST),78		("any", builtin_any::INST),79		("all", builtin_all::INST),80		("member", builtin_member::INST),81		("count", builtin_count::INST),82		// Math83		("abs", builtin_abs::INST),84		("sign", builtin_sign::INST),85		("max", builtin_max::INST),86		("min", builtin_min::INST),87		("modulo", builtin_modulo::INST),88		("floor", builtin_floor::INST),89		("ceil", builtin_ceil::INST),90		("log", builtin_log::INST),91		("pow", builtin_pow::INST),92		("sqrt", builtin_sqrt::INST),93		("sin", builtin_sin::INST),94		("cos", builtin_cos::INST),95		("tan", builtin_tan::INST),96		("asin", builtin_asin::INST),97		("acos", builtin_acos::INST),98		("atan", builtin_atan::INST),99		("exp", builtin_exp::INST),100		("mantissa", builtin_mantissa::INST),101		("exponent", builtin_exponent::INST),102		// Operator103		("mod", builtin_mod::INST),104		("primitiveEquals", builtin_primitive_equals::INST),105		("equals", builtin_equals::INST),106		("format", builtin_format::INST),107		// Sort108		("sort", builtin_sort::INST),109		// Hash110		("md5", builtin_md5::INST),111		#[cfg(feature = "exp-more-hashes")]112		("sha256", builtin_sha256::INST),113		// Encoding114		("encodeUTF8", builtin_encode_utf8::INST),115		("decodeUTF8", builtin_decode_utf8::INST),116		("base64", builtin_base64::INST),117		("base64Decode", builtin_base64_decode::INST),118		("base64DecodeBytes", builtin_base64_decode_bytes::INST),119		// Objects120		("objectFieldsEx", builtin_object_fields_ex::INST),121		("objectHasEx", builtin_object_has_ex::INST),122		// Manifest123		("escapeStringJson", builtin_escape_string_json::INST),124		("manifestJsonEx", builtin_manifest_json_ex::INST),125		("manifestYamlDoc", builtin_manifest_yaml_doc::INST),126		("manifestTomlEx", builtin_manifest_toml_ex::INST),127		// Parsing128		("parseJson", builtin_parse_json::INST),129		("parseYaml", builtin_parse_yaml::INST),130		// Strings131		("codepoint", builtin_codepoint::INST),132		("substr", builtin_substr::INST),133		("char", builtin_char::INST),134		("strReplace", builtin_str_replace::INST),135		("splitLimit", builtin_splitlimit::INST),136		("asciiUpper", builtin_ascii_upper::INST),137		("asciiLower", builtin_ascii_lower::INST),138		("findSubstr", builtin_find_substr::INST),139		("parseInt", builtin_parse_int::INST),140		("parseOctal", builtin_parse_octal::INST),141		("parseHex", builtin_parse_hex::INST),142		// Misc143		("length", builtin_length::INST),144		("startsWith", builtin_starts_with::INST),145		("endsWith", builtin_ends_with::INST),146		// Sets147		("setMember", builtin_set_member::INST),148	]149	.iter()150	.cloned()151	{152		builder153			.member(name.into())154			.hide()155			.value(Val::Func(FuncVal::StaticBuiltin(builtin)))156			.expect("no conflict");157	}158159	builder160		.member("extVar".into())161		.hide()162		.value(Val::Func(FuncVal::builtin(builtin_ext_var {163			settings: settings.clone(),164		})))165		.expect("no conflict");166	builder167		.member("native".into())168		.hide()169		.value(Val::Func(FuncVal::builtin(builtin_native {170			settings: settings.clone(),171		})))172		.expect("no conflict");173	builder174		.member("trace".into())175		.hide()176		.value(Val::Func(FuncVal::builtin(builtin_trace { settings })))177		.expect("no conflict");178179	builder180		.member("id".into())181		.hide()182		.value(Val::Func(FuncVal::Id))183		.expect("no conflict");184185	builder.build()186}187188pub trait TracePrinter {189	fn print_trace(&self, loc: CallLocation, value: IStr);190}191192pub struct StdTracePrinter {193	resolver: PathResolver,194}195impl StdTracePrinter {196	pub fn new(resolver: PathResolver) -> Self {197		Self { resolver }198	}199}200impl TracePrinter for StdTracePrinter {201	fn print_trace(&self, loc: CallLocation, value: IStr) {202		eprint!("TRACE:");203		if let Some(loc) = loc.0 {204			let locs = loc.0.map_source_locations(&[loc.1]);205			eprint!(206				" {}:{}",207				match loc.0.source_path().path() {208					Some(p) => self.resolver.resolve(p),209					None => loc.0.source_path().to_string(),210				},211				locs[0].line212			);213		}214		eprintln!(" {}", value);215	}216}217218pub struct Settings {219	/// Used for `std.extVar`220	pub ext_vars: HashMap<IStr, TlaArg>,221	/// Used for `std.native`222	pub ext_natives: HashMap<IStr, Cc<TraceBox<dyn Builtin>>>,223	/// Helper to add globals without implementing custom ContextInitializer224	pub globals: GcHashMap<IStr, Thunk<Val>>,225	/// Used for `std.trace`226	pub trace_printer: Box<dyn TracePrinter>,227	/// Used for `std.thisFile`228	pub path_resolver: PathResolver,229}230231fn extvar_source(name: &str, code: impl Into<IStr>) -> Source {232	let source_name = format!("<extvar:{}>", name);233	Source::new_virtual(source_name.into(), code.into())234}235236#[derive(Trace)]237pub struct ContextInitializer {238	// When we don't need to support legacy-this-file, we can reuse same context for all files239	#[cfg(not(feature = "legacy-this-file"))]240	context: Context,241	// Otherwise, we can only keep first stdlib layer, and then stack thisFile on top of it242	#[cfg(feature = "legacy-this-file")]243	stdlib_obj: ObjValue,244	settings: Rc<RefCell<Settings>>,245}246impl ContextInitializer {247	pub fn new(s: State, resolver: PathResolver) -> Self {248		let settings = Settings {249			ext_vars: Default::default(),250			ext_natives: Default::default(),251			globals: Default::default(),252			trace_printer: Box::new(StdTracePrinter::new(resolver.clone())),253			path_resolver: resolver,254		};255		let settings = Rc::new(RefCell::new(settings));256		Self {257			#[cfg(not(feature = "legacy-this-file"))]258			context: {259				let mut context = ContextBuilder::with_capacity(s, 1);260				context.bind(261					"std".into(),262					Thunk::evaluated(Val::Obj(stdlib_uncached(settings.clone()))),263				);264				context.build()265			},266			#[cfg(feature = "legacy-this-file")]267			stdlib_obj: stdlib_uncached(settings.clone()),268			settings,269		}270	}271	pub fn settings(&self) -> Ref<Settings> {272		self.settings.borrow()273	}274	pub fn settings_mut(&self) -> RefMut<Settings> {275		self.settings.borrow_mut()276	}277	pub fn add_ext_var(&self, name: IStr, value: Val) {278		self.settings_mut()279			.ext_vars280			.insert(name, TlaArg::Val(value));281	}282	pub fn add_ext_str(&self, name: IStr, value: IStr) {283		self.settings_mut()284			.ext_vars285			.insert(name, TlaArg::String(value));286	}287	pub fn add_ext_code(&self, name: &str, code: impl Into<IStr>) -> Result<()> {288		let code = code.into();289		let source = extvar_source(name, code.clone());290		let parsed = jrsonnet_parser::parse(291			&code,292			&jrsonnet_parser::ParserSettings {293				source: source.clone(),294			},295		)296		.map_err(|e| ImportSyntaxError {297			path: source,298			error: Box::new(e),299		})?;300		// self.data_mut().volatile_files.insert(source_name, code);301		self.settings_mut()302			.ext_vars303			.insert(name.into(), TlaArg::Code(parsed));304		Ok(())305	}306	pub fn add_native(&self, name: IStr, cb: impl Builtin) {307		self.settings_mut()308			.ext_natives309			.insert(name, Cc::new(tb!(cb)));310	}311}312impl jrsonnet_evaluator::ContextInitializer for ContextInitializer {313	#[cfg(not(feature = "legacy-this-file"))]314	fn initialize(&self, _s: State, _source: Source) -> jrsonnet_evaluator::Context {315		let out = self.context.clone();316		let globals = &self.settings().globals;317		if globals.is_empty() {318			return out;319		}320321		let mut out = ContextBuilder::extend(out);322		for (k, v) in globals.iter() {323			out.bind(k.clone(), v.clone());324		}325		out.build()326	}327	#[cfg(feature = "legacy-this-file")]328	fn initialize(&self, s: State, source: Source) -> Context {329		use jrsonnet_evaluator::val::StrValue;330331		let mut builder = ObjValueBuilder::new();332		builder.with_super(self.stdlib_obj.clone());333		builder334			.member("thisFile".into())335			.hide()336			.value(Val::Str(StrValue::Flat(337				match source.source_path().path() {338					Some(p) => self.settings().path_resolver.resolve(p).into(),339					None => source.source_path().to_string().into(),340				},341			)))342			.expect("this object builder is empty");343		let stdlib_with_this_file = builder.build();344345		let mut context = ContextBuilder::with_capacity(s, 1);346		context.bind(347			"std".into(),348			Thunk::evaluated(Val::Obj(stdlib_with_this_file)),349		);350		for (k, v) in self.settings().globals.iter() {351			context.bind(k.clone(), v.clone());352		}353		context.build()354	}355	fn as_any(&self) -> &dyn std::any::Any {356		self357	}358}359360pub trait StateExt {361	/// This method was previously implemented in jrsonnet-evaluator itself362	fn with_stdlib(&self);363	fn add_global(&self, name: IStr, value: Thunk<Val>);364}365366impl StateExt for State {367	fn with_stdlib(&self) {368		let initializer = ContextInitializer::new(self.clone(), PathResolver::new_cwd_fallback());369		self.settings_mut().context_initializer = tb!(initializer)370	}371	fn add_global(&self, name: IStr, value: Thunk<Val>) {372		self.settings()373			.context_initializer374			.as_any()375			.downcast_ref::<ContextInitializer>()376			.expect("not standard context initializer")377			.settings_mut()378			.globals379			.insert(name, value);380	}381}