git.delta.rocks / jrsonnet / refs/commits / 027693dbe6bd

difftreelog

refactor reduce boilerplate by automatic conversions

Yaroslav Bolyukin2023-08-13parent: #dad6c32.patch.diff
in: master

29 files changed

modifiedbindings/jsonnet/src/native.rsdiffbeforeafterboth
--- a/bindings/jsonnet/src/native.rs
+++ b/bindings/jsonnet/src/native.rs
@@ -69,10 +69,7 @@
 	ctx: *const c_void,
 	mut raw_params: *const *const c_char,
 ) {
-	let name = CStr::from_ptr(name)
-		.to_str()
-		.expect("name is not utf-8")
-		.into();
+	let name = CStr::from_ptr(name).to_str().expect("name is not utf-8");
 	let mut params = Vec::new();
 	loop {
 		if (*raw_params).is_null() {
modifiedbindings/jsonnet/src/val_make.rsdiffbeforeafterboth
--- a/bindings/jsonnet/src/val_make.rs
+++ b/bindings/jsonnet/src/val_make.rs
@@ -5,10 +5,7 @@
 	os::raw::{c_char, c_double, c_int},
 };
 
-use jrsonnet_evaluator::{
-	val::{ArrValue, StrValue},
-	ObjValue, Val,
-};
+use jrsonnet_evaluator::{val::ArrValue, ObjValue, Val};
 
 use crate::VM;
 
@@ -21,7 +18,7 @@
 pub unsafe extern "C" fn jsonnet_json_make_string(_vm: &VM, val: *const c_char) -> *mut Val {
 	let val = CStr::from_ptr(val);
 	let val = val.to_str().expect("string is not utf-8");
-	Box::into_raw(Box::new(Val::Str(StrValue::Flat(val.into()))))
+	Box::into_raw(Box::new(Val::string(val)))
 }
 
 /// Convert the given double to a `JsonnetJsonValue`.
modifiedbindings/jsonnet/src/val_modify.rsdiffbeforeafterboth
--- a/bindings/jsonnet/src/val_modify.rs
+++ b/bindings/jsonnet/src/val_modify.rs
@@ -5,7 +5,6 @@
 use std::{ffi::CStr, os::raw::c_char};
 
 use jrsonnet_evaluator::{val::ArrValue, Thunk, Val};
-use jrsonnet_gcmodule::Cc;
 
 use crate::VM;
 
modifiedcrates/jrsonnet-cli/src/stdlib.rsdiffbeforeafterboth
--- a/crates/jrsonnet-cli/src/stdlib.rs
+++ b/crates/jrsonnet-cli/src/stdlib.rs
@@ -1,7 +1,7 @@
 use std::{fs::read_to_string, str::FromStr};
 
 use clap::Parser;
-use jrsonnet_evaluator::{error::Result, trace::PathResolver, State};
+use jrsonnet_evaluator::{trace::PathResolver, Result, State};
 use jrsonnet_stdlib::ContextInitializer;
 
 #[derive(Clone)]
modifiedcrates/jrsonnet-evaluator/src/arr/spec.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/arr/spec.rs
+++ b/crates/jrsonnet-evaluator/src/arr/spec.rs
@@ -6,12 +6,8 @@
 
 use super::ArrValue;
 use crate::{
-	error::ErrorKind::InfiniteRecursionDetected,
-	evaluate,
-	function::FuncVal,
-	typed::Typed,
-	val::{StrValue, ThunkValue},
-	Context, Error, ObjValue, Result, Thunk, Val,
+	error::ErrorKind::InfiniteRecursionDetected, evaluate, function::FuncVal, typed::Typed,
+	val::ThunkValue, Context, Error, ObjValue, Result, Thunk, Val,
 };
 
 pub trait ArrayLike: Any + Trace + Debug {
@@ -101,9 +97,7 @@
 	}
 
 	fn get_cheap(&self, index: usize) -> Option<Val> {
-		self.0
-			.get(index)
-			.map(|v| Val::Str(StrValue::Flat(IStr::from(*v))))
+		self.0.get(index).map(|v| Val::string(*v))
 	}
 	fn is_cheap(&self) -> bool {
 		true
modifiedcrates/jrsonnet-evaluator/src/ctx.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/ctx.rs
+++ b/crates/jrsonnet-evaluator/src/ctx.rs
@@ -87,9 +87,9 @@
 	}
 
 	#[must_use]
-	pub fn with_var(self, name: IStr, value: Val) -> Self {
+	pub fn with_var(self, name: impl Into<IStr>, value: Val) -> Self {
 		let mut new_bindings = GcHashMap::with_capacity(1);
-		new_bindings.insert(name, Thunk::evaluated(value));
+		new_bindings.insert(name.into(), Thunk::evaluated(value));
 		self.extend(new_bindings, None, None, None)
 	}
 
@@ -161,8 +161,8 @@
 	}
 	/// # Panics
 	/// If `name` is already bound
-	pub fn bind(&mut self, name: IStr, value: Thunk<Val>) -> &mut Self {
-		let old = self.bindings.insert(name, value);
+	pub fn bind(&mut self, name: impl Into<IStr>, value: Thunk<Val>) -> &mut Self {
+		let old = self.bindings.insert(name.into(), value);
 		assert!(old.is_none(), "variable bound twice in single context call");
 		self
 	}
modifiedcrates/jrsonnet-evaluator/src/dynamic.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/dynamic.rs
+++ b/crates/jrsonnet-evaluator/src/dynamic.rs
@@ -52,9 +52,3 @@
 		Self::new()
 	}
 }
-
-impl<T: Trace + Clone> From<Pending<T>> for Thunk<T> {
-	fn from(value: Pending<T>) -> Self {
-		Self::new(value)
-	}
-}
modifiedcrates/jrsonnet-evaluator/src/evaluate/mod.rsdiffbeforeafterboth
before · crates/jrsonnet-evaluator/src/evaluate/mod.rs
1use std::rc::Rc;23use jrsonnet_gcmodule::{Cc, Trace};4use jrsonnet_interner::IStr;5use jrsonnet_parser::{6	ArgsDesc, AssertStmt, BindSpec, CompSpec, Expr, FieldMember, FieldName, ForSpecData,7	IfSpecData, LiteralType, LocExpr, Member, ObjBody, ParamsDesc,8};9use jrsonnet_types::ValType;1011use self::destructure::destruct;12use crate::{13	arr::ArrValue,14	bail,15	destructure::evaluate_dest,16	error::{suggest_object_fields, ErrorKind::*},17	evaluate::operator::{evaluate_add_op, evaluate_binary_op_special, evaluate_unary_op},18	function::{CallLocation, FuncDesc, FuncVal},19	typed::Typed,20	val::{CachedUnbound, IndexableVal, StrValue, Thunk, ThunkValue},21	Context, GcHashMap, ObjValue, ObjValueBuilder, ObjectAssertion, Pending, Result, ResultExt,22	State, Unbound, Val,23};24pub mod destructure;25pub mod operator;2627pub fn evaluate_trivial(expr: &LocExpr) -> Option<Val> {28	fn is_trivial(expr: &LocExpr) -> bool {29		match &*expr.0 {30			Expr::Str(_)31			| Expr::Num(_)32			| Expr::Literal(LiteralType::False | LiteralType::True | LiteralType::Null) => true,33			Expr::Arr(a) => a.iter().all(is_trivial),34			Expr::Parened(e) => is_trivial(e),35			_ => false,36		}37	}38	Some(match &*expr.0 {39		Expr::Str(s) => Val::Str(StrValue::Flat(s.clone())),40		Expr::Num(n) => Val::Num(*n),41		Expr::Literal(LiteralType::False) => Val::Bool(false),42		Expr::Literal(LiteralType::True) => Val::Bool(true),43		Expr::Literal(LiteralType::Null) => Val::Null,44		Expr::Arr(n) => {45			if n.iter().any(|e| !is_trivial(e)) {46				return None;47			}48			Val::Arr(ArrValue::eager(49				n.iter()50					.map(evaluate_trivial)51					.map(|e| e.expect("checked trivial"))52					.collect(),53			))54		}55		Expr::Parened(e) => evaluate_trivial(e)?,56		_ => return None,57	})58}5960pub fn evaluate_method(ctx: Context, name: IStr, params: ParamsDesc, body: LocExpr) -> Val {61	Val::Func(FuncVal::Normal(Cc::new(FuncDesc {62		name,63		ctx,64		params,65		body,66	})))67}6869pub fn evaluate_field_name(ctx: Context, field_name: &FieldName) -> Result<Option<IStr>> {70	Ok(match field_name {71		FieldName::Fixed(n) => Some(n.clone()),72		FieldName::Dyn(expr) => State::push(73			CallLocation::new(&expr.1),74			|| "evaluating field name".to_string(),75			|| {76				let value = evaluate(ctx, expr)?;77				if matches!(value, Val::Null) {78					Ok(None)79				} else {80					Ok(Some(IStr::from_untyped(value)?))81				}82			},83		)?,84	})85}8687pub fn evaluate_comp(88	ctx: Context,89	specs: &[CompSpec],90	callback: &mut impl FnMut(Context) -> Result<()>,91) -> Result<()> {92	match specs.get(0) {93		None => callback(ctx)?,94		Some(CompSpec::IfSpec(IfSpecData(cond))) => {95			if bool::from_untyped(evaluate(ctx.clone(), cond)?)? {96				evaluate_comp(ctx, &specs[1..], callback)?;97			}98		}99		Some(CompSpec::ForSpec(ForSpecData(var, expr))) => match evaluate(ctx.clone(), expr)? {100			Val::Arr(list) => {101				for item in list.iter_lazy() {102					let fctx = Pending::new();103					let mut new_bindings = GcHashMap::with_capacity(var.capacity_hint());104					destruct(var, item, fctx.clone(), &mut new_bindings)?;105					let ctx = ctx106						.clone()107						.extend(new_bindings, None, None, None)108						.into_future(fctx);109110					evaluate_comp(ctx, &specs[1..], callback)?;111				}112			}113			#[cfg(feature = "exp-object-iteration")]114			Val::Obj(obj) => {115				for field in obj.fields(116					// TODO: Should there be ability to preserve iteration order?117					#[cfg(feature = "exp-preserve-order")]118					false,119				) {120					#[derive(Trace)]121					struct ObjectFieldThunk {122						obj: ObjValue,123						field: IStr,124					}125					impl ThunkValue for ObjectFieldThunk {126						type Output = Val;127128						fn get(self: Box<Self>) -> Result<Self::Output> {129							self.obj.get(self.field).transpose().expect(130								"field exists, as field name was obtained from object.fields()",131							)132						}133					}134135					let fctx = Pending::new();136					let mut new_bindings = GcHashMap::with_capacity(var.capacity_hint());137					let value = Thunk::evaluated(Val::Arr(ArrValue::lazy(vec![138						Thunk::evaluated(Val::Str(StrValue::Flat(field.clone()))),139						Thunk::new(ObjectFieldThunk {140							field: field.clone(),141							obj: obj.clone(),142						}),143					])));144					destruct(var, value, fctx.clone(), &mut new_bindings)?;145					let ctx = ctx146						.clone()147						.extend(new_bindings, None, None, None)148						.into_future(fctx);149150					evaluate_comp(ctx, &specs[1..], callback)?;151				}152			}153			_ => bail!(InComprehensionCanOnlyIterateOverArray),154		},155	}156	Ok(())157}158159trait CloneableUnbound<T>: Unbound<Bound = T> + Clone {}160impl<V, T> CloneableUnbound<T> for V where V: Unbound<Bound = T> + Clone {}161162fn evaluate_object_locals(163	fctx: Pending<Context>,164	locals: Rc<Vec<BindSpec>>,165) -> impl CloneableUnbound<Context> {166	#[derive(Trace, Clone)]167	struct UnboundLocals {168		fctx: Pending<Context>,169		locals: Rc<Vec<BindSpec>>,170	}171	impl Unbound for UnboundLocals {172		type Bound = Context;173174		fn bind(&self, sup: Option<ObjValue>, this: Option<ObjValue>) -> Result<Context> {175			let fctx = Context::new_future();176			let mut new_bindings =177				GcHashMap::with_capacity(self.locals.iter().map(BindSpec::capacity_hint).sum());178			for b in self.locals.iter() {179				evaluate_dest(b, fctx.clone(), &mut new_bindings)?;180			}181182			let ctx = self.fctx.unwrap();183			let new_dollar = ctx.dollar().cloned().or_else(|| this.clone());184185			let ctx = ctx186				.extend(new_bindings, new_dollar, sup, this)187				.into_future(fctx);188189			Ok(ctx)190		}191	}192193	UnboundLocals { fctx, locals }194}195196pub fn evaluate_field_member<B: Unbound<Bound = Context> + Clone>(197	builder: &mut ObjValueBuilder,198	ctx: Context,199	uctx: B,200	field: &FieldMember,201) -> Result<()> {202	let name = evaluate_field_name(ctx, &field.name)?;203	let Some(name) = name else {204		return Ok(());205	};206207	match field {208		FieldMember {209			plus,210			params: None,211			visibility,212			value,213			..214		} => {215			#[derive(Trace)]216			struct UnboundValue<B: Trace> {217				uctx: B,218				value: LocExpr,219				name: IStr,220			}221			impl<B: Unbound<Bound = Context>> Unbound for UnboundValue<B> {222				type Bound = Val;223				fn bind(&self, sup: Option<ObjValue>, this: Option<ObjValue>) -> Result<Val> {224					evaluate_named(self.uctx.bind(sup, this)?, &self.value, self.name.clone())225				}226			}227228			builder229				.member(name.clone())230				.with_add(*plus)231				.with_visibility(*visibility)232				.with_location(value.1.clone())233				.bindable(UnboundValue {234					uctx,235					value: value.clone(),236					name,237				})?;238		}239		FieldMember {240			params: Some(params),241			visibility,242			value,243			..244		} => {245			#[derive(Trace)]246			struct UnboundMethod<B: Trace> {247				uctx: B,248				value: LocExpr,249				params: ParamsDesc,250				name: IStr,251			}252			impl<B: Unbound<Bound = Context>> Unbound for UnboundMethod<B> {253				type Bound = Val;254				fn bind(&self, sup: Option<ObjValue>, this: Option<ObjValue>) -> Result<Val> {255					Ok(evaluate_method(256						self.uctx.bind(sup, this)?,257						self.name.clone(),258						self.params.clone(),259						self.value.clone(),260					))261				}262			}263264			builder265				.member(name.clone())266				.with_visibility(*visibility)267				.with_location(value.1.clone())268				.bindable(UnboundMethod {269					uctx,270					value: value.clone(),271					params: params.clone(),272					name,273				})?;274		}275	}276	Ok(())277}278279#[allow(clippy::too_many_lines)]280pub fn evaluate_member_list_object(ctx: Context, members: &[Member]) -> Result<ObjValue> {281	let mut builder = ObjValueBuilder::new();282	let locals = Rc::new(283		members284			.iter()285			.filter_map(|m| match m {286				Member::BindStmt(bind) => Some(bind.clone()),287				_ => None,288			})289			.collect::<Vec<_>>(),290	);291292	let fctx = Context::new_future();293294	// We have single context for all fields, so we can cache binds295	let uctx = CachedUnbound::new(evaluate_object_locals(fctx.clone(), locals));296297	for member in members {298		match member {299			Member::Field(field) => {300				evaluate_field_member(&mut builder, ctx.clone(), uctx.clone(), field)?;301			}302			Member::AssertStmt(stmt) => {303				#[derive(Trace)]304				struct ObjectAssert<B: Trace> {305					uctx: B,306					assert: AssertStmt,307				}308				impl<B: Unbound<Bound = Context>> ObjectAssertion for ObjectAssert<B> {309					fn run(&self, sup: Option<ObjValue>, this: Option<ObjValue>) -> Result<()> {310						let ctx = self.uctx.bind(sup, this)?;311						evaluate_assert(ctx, &self.assert)312					}313				}314				builder.assert(ObjectAssert {315					uctx: uctx.clone(),316					assert: stmt.clone(),317				});318			}319			Member::BindStmt(_) => {320				// Already handled321			}322		}323	}324	let this = builder.build();325	fctx.fill(ctx.extend(GcHashMap::new(), None, None, Some(this.clone())));326	Ok(this)327}328329pub fn evaluate_object(ctx: Context, object: &ObjBody) -> Result<ObjValue> {330	Ok(match object {331		ObjBody::MemberList(members) => evaluate_member_list_object(ctx, members)?,332		ObjBody::ObjComp(obj) => {333			let mut builder = ObjValueBuilder::new();334			let locals = Rc::new(335				obj.pre_locals336					.iter()337					.chain(obj.post_locals.iter())338					.cloned()339					.collect::<Vec<_>>(),340			);341			let mut ctxs = vec![];342			evaluate_comp(ctx, &obj.compspecs, &mut |ctx| {343				let fctx = Context::new_future();344				ctxs.push((ctx.clone(), fctx.clone()));345				let uctx = evaluate_object_locals(fctx, locals.clone());346347				evaluate_field_member(&mut builder, ctx, uctx, &obj.field)348			})?;349350			let this = builder.build();351			for (ctx, fctx) in ctxs {352				let _ctx = ctx353					.extend(GcHashMap::new(), None, None, Some(this.clone()))354					.into_future(fctx);355			}356			this357		}358	})359}360361pub fn evaluate_apply(362	ctx: Context,363	value: &LocExpr,364	args: &ArgsDesc,365	loc: CallLocation<'_>,366	tailstrict: bool,367) -> Result<Val> {368	let value = evaluate(ctx.clone(), value)?;369	Ok(match value {370		Val::Func(f) => {371			let body = || f.evaluate(ctx, loc, args, tailstrict);372			if tailstrict {373				body()?374			} else {375				State::push(loc, || format!("function <{}> call", f.name()), body)?376			}377		}378		v => bail!(OnlyFunctionsCanBeCalledGot(v.value_type())),379	})380}381382pub fn evaluate_assert(ctx: Context, assertion: &AssertStmt) -> Result<()> {383	let value = &assertion.0;384	let msg = &assertion.1;385	let assertion_result = State::push(386		CallLocation::new(&value.1),387		|| "assertion condition".to_owned(),388		|| bool::from_untyped(evaluate(ctx.clone(), value)?),389	)?;390	if !assertion_result {391		State::push(392			CallLocation::new(&value.1),393			|| "assertion failure".to_owned(),394			|| {395				if let Some(msg) = msg {396					bail!(AssertionFailed(evaluate(ctx, msg)?.to_string()?));397				}398				bail!(AssertionFailed(Val::Null.to_string()?));399			},400		)?;401	}402	Ok(())403}404405pub fn evaluate_named(ctx: Context, expr: &LocExpr, name: IStr) -> Result<Val> {406	use Expr::*;407	let LocExpr(raw_expr, _loc) = expr;408	Ok(match &**raw_expr {409		Function(params, body) => evaluate_method(ctx, name, params.clone(), body.clone()),410		_ => evaluate(ctx, expr)?,411	})412}413414#[allow(clippy::too_many_lines)]415pub fn evaluate(ctx: Context, expr: &LocExpr) -> Result<Val> {416	use Expr::*;417418	if let Some(trivial) = evaluate_trivial(expr) {419		return Ok(trivial);420	}421	let LocExpr(expr, loc) = expr;422	Ok(match &**expr {423		Literal(LiteralType::This) => {424			Val::Obj(ctx.this().ok_or(CantUseSelfOutsideOfObject)?.clone())425		}426		Literal(LiteralType::Super) => Val::Obj(427			ctx.super_obj().ok_or(NoSuperFound)?.with_this(428				ctx.this()429					.expect("if super exists - then this should too")430					.clone(),431			),432		),433		Literal(LiteralType::Dollar) => {434			Val::Obj(ctx.dollar().ok_or(NoTopLevelObjectFound)?.clone())435		}436		Literal(LiteralType::True) => Val::Bool(true),437		Literal(LiteralType::False) => Val::Bool(false),438		Literal(LiteralType::Null) => Val::Null,439		Parened(e) => evaluate(ctx, e)?,440		Str(v) => Val::Str(StrValue::Flat(v.clone())),441		Num(v) => Val::new_checked_num(*v)?,442		BinaryOp(v1, o, v2) => evaluate_binary_op_special(ctx, v1, *o, v2)?,443		UnaryOp(o, v) => evaluate_unary_op(*o, &evaluate(ctx, v)?)?,444		Var(name) => State::push(445			CallLocation::new(loc),446			|| format!("variable <{name}> access"),447			|| ctx.binding(name.clone())?.evaluate(),448		)?,449		Index { indexable, parts } => {450			let mut parts = parts.iter();451			let mut indexable = match &indexable {452				// Cheaper to execute than creating object with overriden `this`453				LocExpr(v, _) if matches!(&**v, Expr::Literal(LiteralType::Super)) => {454					let part = parts.next().expect("at least part should exist");455					let Some(super_obj) = ctx.super_obj() else {456						#[cfg(feature = "exp-null-coaelse")]457						if part.null_coaelse {458							return Ok(Val::Null);459						}460						bail!(NoSuperFound)461					};462					let name = evaluate(ctx.clone(), &part.value)?;463464					let Val::Str(name) = name else {465						bail!(ValueIndexMustBeTypeGot(466							ValType::Obj,467							ValType::Str,468							name.value_type(),469						))470					};471472					let this = ctx473						.this()474						.expect("no this found, while super present, should not happen");475					let name = name.into_flat();476					match super_obj477						.get_for(name.clone(), this.clone())478						.with_description_src(&part.value, || format!("field <{name}> access"))?479					{480						Some(v) => v,481						#[cfg(feature = "exp-null-coaelse")]482						None if part.null_coaelse => return Ok(Val::Null),483						None => {484							let suggestions = suggest_object_fields(super_obj, name.clone());485486							bail!(NoSuchField(name, suggestions))487						}488					}489				}490				e => evaluate(ctx.clone(), e)?,491			};492493			for part in parts {494				indexable = match (indexable, evaluate(ctx.clone(), &part.value)?) {495					(Val::Obj(v), Val::Str(key)) => match v496						.get(key.clone().into_flat())497						.with_description_src(&part.value, || format!("field <{key}> access"))?498					{499						Some(v) => v,500						#[cfg(feature = "exp-null-coaelse")]501						None if part.null_coaelse => return Ok(Val::Null),502						None => {503							let suggestions = suggest_object_fields(&v, key.clone().into_flat());504505							bail!(NoSuchField(key.clone().into_flat(), suggestions))506						}507					},508					(Val::Obj(_), n) => bail!(ValueIndexMustBeTypeGot(509						ValType::Obj,510						ValType::Str,511						n.value_type(),512					)),513					(Val::Arr(v), Val::Num(n)) => {514						if n.fract() > f64::EPSILON {515							bail!(FractionalIndex)516						}517						v.get(n as usize)?518							.ok_or_else(|| ArrayBoundsError(n as usize, v.len()))?519					}520					(Val::Arr(_), Val::Str(n)) => {521						bail!(AttemptedIndexAnArrayWithString(n.into_flat()))522					}523					(Val::Arr(_), n) => bail!(ValueIndexMustBeTypeGot(524						ValType::Arr,525						ValType::Num,526						n.value_type(),527					)),528529					(Val::Str(s), Val::Num(n)) => Val::Str({530						let v: IStr = s531							.clone()532							.into_flat()533							.chars()534							.skip(n as usize)535							.take(1)536							.collect::<String>()537							.into();538						if v.is_empty() {539							let size = s.into_flat().chars().count();540							bail!(StringBoundsError(n as usize, size))541						}542						StrValue::Flat(v)543					}),544					(Val::Str(_), n) => bail!(ValueIndexMustBeTypeGot(545						ValType::Str,546						ValType::Num,547						n.value_type(),548					)),549					#[cfg(feature = "exp-null-coaelse")]550					(Val::Null, _) if part.null_coaelse => return Ok(Val::Null),551					(v, _) => bail!(CantIndexInto(v.value_type())),552				};553			}554			indexable555		}556		LocalExpr(bindings, returned) => {557			let mut new_bindings: GcHashMap<IStr, Thunk<Val>> =558				GcHashMap::with_capacity(bindings.iter().map(BindSpec::capacity_hint).sum());559			let fctx = Context::new_future();560			for b in bindings {561				evaluate_dest(b, fctx.clone(), &mut new_bindings)?;562			}563			let ctx = ctx.extend(new_bindings, None, None, None).into_future(fctx);564			evaluate(ctx, &returned.clone())?565		}566		Arr(items) => {567			if items.is_empty() {568				Val::Arr(ArrValue::empty())569			} else if items.len() == 1 {570				#[derive(Trace)]571				struct ArrayElement {572					ctx: Context,573					item: LocExpr,574				}575				impl ThunkValue for ArrayElement {576					type Output = Val;577					fn get(self: Box<Self>) -> Result<Val> {578						evaluate(self.ctx, &self.item)579					}580				}581				Val::Arr(ArrValue::lazy(vec![Thunk::new(ArrayElement {582					ctx,583					item: items[0].clone(),584				})]))585			} else {586				Val::Arr(ArrValue::expr(ctx, items.iter().cloned()))587			}588		}589		ArrComp(expr, comp_specs) => {590			let mut out = Vec::new();591			evaluate_comp(ctx, comp_specs, &mut |ctx| {592				out.push(evaluate(ctx, expr)?);593				Ok(())594			})?;595			Val::Arr(ArrValue::eager(out))596		}597		Obj(body) => Val::Obj(evaluate_object(ctx, body)?),598		ObjExtend(a, b) => evaluate_add_op(599			&evaluate(ctx.clone(), a)?,600			&Val::Obj(evaluate_object(ctx, b)?),601		)?,602		Apply(value, args, tailstrict) => {603			evaluate_apply(ctx, value, args, CallLocation::new(loc), *tailstrict)?604		}605		Function(params, body) => {606			evaluate_method(ctx, "anonymous".into(), params.clone(), body.clone())607		}608		AssertExpr(assert, returned) => {609			evaluate_assert(ctx.clone(), assert)?;610			evaluate(ctx, returned)?611		}612		ErrorStmt(e) => State::push(613			CallLocation::new(loc),614			|| "error statement".to_owned(),615			|| bail!(RuntimeError(evaluate(ctx, e)?.to_string()?,)),616		)?,617		IfElse {618			cond,619			cond_then,620			cond_else,621		} => {622			if State::push(623				CallLocation::new(loc),624				|| "if condition".to_owned(),625				|| bool::from_untyped(evaluate(ctx.clone(), &cond.0)?),626			)? {627				evaluate(ctx, cond_then)?628			} else {629				match cond_else {630					Some(v) => evaluate(ctx, v)?,631					None => Val::Null,632				}633			}634		}635		Slice(value, desc) => {636			fn parse_idx<T: Typed>(637				loc: CallLocation<'_>,638				ctx: &Context,639				expr: Option<&LocExpr>,640				desc: &'static str,641			) -> Result<Option<T>> {642				if let Some(value) = expr {643					Ok(Some(State::push(644						loc,645						|| format!("slice {desc}"),646						|| T::from_untyped(evaluate(ctx.clone(), value)?),647					)?))648				} else {649					Ok(None)650				}651			}652653			let indexable = evaluate(ctx.clone(), value)?;654			let loc = CallLocation::new(loc);655656			let start = parse_idx(loc, &ctx, desc.start.as_ref(), "start")?;657			let end = parse_idx(loc, &ctx, desc.end.as_ref(), "end")?;658			let step = parse_idx(loc, &ctx, desc.step.as_ref(), "step")?;659660			IndexableVal::into_untyped(indexable.into_indexable()?.slice(start, end, step)?)?661		}662		i @ (Import(path) | ImportStr(path) | ImportBin(path)) => {663			let Expr::Str(path) = &*path.0 else {664				bail!("computed imports are not supported")665			};666			let tmp = loc.clone().0;667			let s = ctx.state();668			let resolved_path = s.resolve_from(tmp.source_path(), path as &str)?;669			match i {670				Import(_) => State::push(671					CallLocation::new(loc),672					|| format!("import {:?}", path.clone()),673					|| s.import_resolved(resolved_path),674				)?,675				ImportStr(_) => Val::Str(StrValue::Flat(s.import_resolved_str(resolved_path)?)),676				ImportBin(_) => Val::Arr(ArrValue::bytes(s.import_resolved_bin(resolved_path)?)),677				_ => unreachable!(),678			}679		}680	})681}
modifiedcrates/jrsonnet-evaluator/src/evaluate/operator.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/evaluate/operator.rs
+++ b/crates/jrsonnet-evaluator/src/evaluate/operator.rs
@@ -30,18 +30,12 @@
 	Ok(match (a, b) {
 		(Str(v1), Str(v2)) => Str(StrValue::concat(v1.clone(), v2.clone())),
 
-		(Num(a), Str(b)) => Str(StrValue::Flat(format!("{a}{b}").into())),
-		(Str(a), Num(b)) => Str(StrValue::Flat(format!("{a}{b}").into())),
+		(Num(a), Str(b)) => Val::string(format!("{a}{b}")),
+		(Str(a), Num(b)) => Val::string(format!("{a}{b}")),
 
-		(Str(a), o) | (o, Str(a)) if a.is_empty() => {
-			Val::Str(StrValue::Flat(o.clone().to_string()?))
-		}
-		(Str(a), o) => Str(StrValue::Flat(
-			format!("{a}{}", o.clone().to_string()?).into(),
-		)),
-		(o, Str(a)) => Str(StrValue::Flat(
-			format!("{}{a}", o.clone().to_string()?).into(),
-		)),
+		(Str(a), o) | (o, Str(a)) if a.is_empty() => Val::string(o.clone().to_string()?),
+		(Str(a), o) => Val::string(format!("{a}{}", o.clone().to_string()?)),
+		(o, Str(a)) => Val::string(format!("{}{a}", o.clone().to_string()?)),
 
 		(Obj(v1), Obj(v2)) => Obj(v2.extend_from(v1.clone())),
 		(Arr(a), Arr(b)) => Val::Arr(ArrValue::extended(a.clone(), b.clone())),
@@ -149,7 +143,7 @@
 		(Str(a), In, Obj(obj)) => Bool(obj.has_field_ex(a.clone().into_flat(), true)),
 		(a, Mod, b) => evaluate_mod_op(a, b)?,
 
-		(Str(v1), Mul, Num(v2)) => Str(StrValue::Flat(v1.to_string().repeat(*v2 as usize).into())),
+		(Str(v1), Mul, Num(v2)) => Val::string(v1.to_string().repeat(*v2 as usize)),
 
 		// Bool X Bool
 		(Bool(a), And, Bool(b)) => Bool(*a && *b),
modifiedcrates/jrsonnet-evaluator/src/function/arglike.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/function/arglike.rs
+++ b/crates/jrsonnet-evaluator/src/function/arglike.rs
@@ -61,7 +61,7 @@
 impl ArgLike for TlaArg {
 	fn evaluate_arg(&self, ctx: Context, tailstrict: bool) -> Result<Thunk<Val>> {
 		match self {
-			TlaArg::String(s) => Ok(Thunk::evaluated(Val::Str(StrValue::Flat(s.clone())))),
+			TlaArg::String(s) => Ok(Thunk::evaluated(Val::string(s.clone()))),
 			TlaArg::Code(code) => Ok(if tailstrict {
 				Thunk::evaluated(evaluate(ctx, code)?)
 			} else {
modifiedcrates/jrsonnet-evaluator/src/function/mod.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/function/mod.rs
+++ b/crates/jrsonnet-evaluator/src/function/mod.rs
@@ -12,7 +12,10 @@
 	native::NativeDesc,
 	parse::{parse_default_function_call, parse_function_call},
 };
-use crate::{evaluate, evaluate_trivial, gc::TraceBox, tb, Context, ContextBuilder, Result, Val};
+use crate::{
+	evaluate, evaluate_trivial, gc::TraceBox, tb, Context, ContextBuilder, Result,
+	Val,
+};
 
 pub mod arglike;
 pub mod builtin;
@@ -124,6 +127,9 @@
 	pub fn builtin(builtin: impl Builtin) -> Self {
 		Self::Builtin(Cc::new(tb!(builtin)))
 	}
+	pub fn static_builtin(static_builtin: &'static dyn StaticBuiltin) -> Self {
+		Self::StaticBuiltin(static_builtin)
+	}
 
 	pub fn params(&self) -> Vec<BuiltinParam> {
 		match self {
@@ -239,3 +245,17 @@
 		}
 	}
 }
+
+impl<T> From<T> for FuncVal
+where
+	T: Builtin,
+{
+	fn from(value: T) -> Self {
+		Self::builtin(value)
+	}
+}
+impl From<&'static dyn StaticBuiltin> for FuncVal {
+	fn from(value: &'static dyn StaticBuiltin) -> Self {
+		Self::static_builtin(value)
+	}
+}
modifiedcrates/jrsonnet-evaluator/src/function/native.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/function/native.rs
+++ b/crates/jrsonnet-evaluator/src/function/native.rs
@@ -2,7 +2,7 @@
 	arglike::{ArgLike, OptionalContext},
 	FuncVal,
 };
-use crate::{error::Result, typed::Typed};
+use crate::{typed::Typed, Result};
 
 pub trait NativeDesc {
 	type Value;
modifiedcrates/jrsonnet-evaluator/src/gc.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/gc.rs
+++ b/crates/jrsonnet-evaluator/src/gc.rs
@@ -117,9 +117,7 @@
 }
 
 #[derive(Debug)]
-pub struct GcHashMap<K, V>(
-	pub HashMap<K, V, BuildHasherDefault<FxHasher>>
-);
+pub struct GcHashMap<K, V>(pub HashMap<K, V, BuildHasherDefault<FxHasher>>);
 impl<K, V> GcHashMap<K, V> {
 	pub fn new() -> Self {
 		Self(HashMap::default())
modifiedcrates/jrsonnet-evaluator/src/integrations/serde.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/integrations/serde.rs
+++ b/crates/jrsonnet-evaluator/src/integrations/serde.rs
@@ -11,10 +11,8 @@
 };
 
 use crate::{
-	arr::ArrValue,
-	error::{Error as JrError, ErrorKind, Result},
-	val::StrValue,
-	ObjValue, ObjValueBuilder, State, Val,
+	arr::ArrValue, runtime_error, Error as JrError, ObjValue, ObjValueBuilder,
+	Result, State, Val,
 };
 
 impl<'de> Deserialize<'de> for Val {
@@ -57,7 +55,7 @@
 			where
 				E: serde::de::Error,
 			{
-				Ok(Val::Str(StrValue::Flat(v.into())))
+				Ok(Val::string(v))
 			}
 
 			// visit_num! {
@@ -138,7 +136,7 @@
 
 				while let Some((k, v)) = map.next_entry::<Cow<'de, str>, Val>()? {
 					// Jsonnet ignores duplicate keys
-					out.member(k.into()).value_unchecked(v);
+					out.field(k).value(v);
 				}
 
 				Ok(Val::Obj(out.build()))
@@ -264,7 +262,7 @@
 		let inner = Val::Arr(ArrValue::eager(self.data));
 		if let Some(variant) = self.variant {
 			let mut out = ObjValue::builder_with_capacity(1);
-			out.member(variant).value_unchecked(inner);
+			out.field(variant).value(inner);
 			Ok(Val::Obj(out.build()))
 		} else {
 			Ok(inner)
@@ -365,7 +363,7 @@
 	{
 		let key = self.key.take().expect("no serialize_key called");
 		let value = value.serialize(IntoValSerializer)?;
-		self.data.member(key).value(value)?;
+		self.data.field(key).try_value(value)?;
 		Ok(())
 	}
 
@@ -378,7 +376,7 @@
 		let key = key.serialize(IntoValSerializer)?;
 		let key = key.to_string()?;
 		let value = value.serialize(IntoValSerializer)?;
-		self.data.member(key).value(value)?;
+		self.data.field(key).try_value(value)?;
 		Ok(())
 	}
 
@@ -386,7 +384,7 @@
 		let inner = Val::Obj(self.data.build());
 		if let Some(variant) = self.variant {
 			let mut out = ObjValue::builder_with_capacity(1);
-			out.member(variant).value_unchecked(inner);
+			out.field(variant).value(inner);
 			Ok(Val::Obj(out.build()))
 		} else {
 			Ok(inner)
@@ -550,7 +548,7 @@
 	{
 		let mut out = ObjValue::builder_with_capacity(1);
 		let value = value.serialize(self)?;
-		out.member(variant.into()).value_unchecked(value);
+		out.field(variant).value(value);
 		Ok(Val::Obj(out.build()))
 	}
 
modifiedcrates/jrsonnet-evaluator/src/lib.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/lib.rs
+++ b/crates/jrsonnet-evaluator/src/lib.rs
@@ -498,7 +498,7 @@
 pub struct InitialUnderscore(pub Thunk<Val>);
 impl ContextInitializer for InitialUnderscore {
 	fn populate(&self, _for_file: Source, builder: &mut ContextBuilder) {
-		builder.bind("_".into(), self.0.clone());
+		builder.bind("_", self.0.clone());
 	}
 
 	fn as_any(&self) -> &dyn Any {
modifiedcrates/jrsonnet-evaluator/src/manifest.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/manifest.rs
+++ b/crates/jrsonnet-evaluator/src/manifest.rs
@@ -174,11 +174,13 @@
 		Val::Str(s) => escape_string_json_buf(&s.clone().into_flat(), buf),
 		Val::Num(n) => write!(buf, "{n}").unwrap(),
 		#[cfg(feature = "exp-bigint")]
-		Val::BigInt(n) => if options.preserve_bigints {
-			write!(buf, "{n}").unwrap()
-		} else {
-			write!(buf, "{:?}", n.to_string()).unwrap()
-		},
+		Val::BigInt(n) => {
+			if options.preserve_bigints {
+				write!(buf, "{n}").unwrap()
+			} else {
+				write!(buf, "{:?}", n.to_string()).unwrap()
+			}
+		}
 		Val::Arr(items) => {
 			buf.push('[');
 			if !items.is_empty() {
modifiedcrates/jrsonnet-evaluator/src/obj.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/obj.rs
+++ b/crates/jrsonnet-evaluator/src/obj.rs
@@ -15,7 +15,7 @@
 	arr::{PickObjectKeyValues, PickObjectValues},
 	bail,
 	error::{suggest_object_fields, Error, ErrorKind::*},
-	function::CallLocation,
+	function::{CallLocation, FuncVal},
 	gc::{GcHashMap, GcHashSet, TraceBox},
 	operator::evaluate_add_op,
 	tb,
@@ -345,7 +345,7 @@
 	pub(crate) fn extend_with_raw_member(self, key: IStr, value: ObjMember) -> Self {
 		let mut out = ObjValueBuilder::with_capacity(1);
 		out.with_super(self);
-		let mut member = out.member(key);
+		let mut member = out.field(key);
 		if value.flags.add() {
 			member = member.add()
 		}
@@ -848,11 +848,27 @@
 		self.assertions.push(tb!(assertion));
 		self
 	}
-	pub fn member(&mut self, name: IStr) -> ObjMemberBuilder<ValueBuilder<'_>> {
+	pub fn field(&mut self, name: impl Into<IStr>) -> ObjMemberBuilder<ValueBuilder<'_>> {
 		let field_index = self.next_field_index;
 		self.next_field_index = self.next_field_index.next();
-		ObjMemberBuilder::new(ValueBuilder(self), name, field_index)
+		ObjMemberBuilder::new(ValueBuilder(self), name.into(), field_index)
 	}
+	/// Preset for common method definiton pattern:
+	/// Create a hidden field with the function value.
+	///
+	/// `.field(name).hide().value(Val::function(value))`
+	pub fn method(&mut self, name: impl Into<IStr>, value: impl Into<FuncVal>) -> &mut Self {
+		self.field(name).hide().value(Val::Func(value.into()));
+		self
+	}
+	pub fn try_method(
+		&mut self,
+		name: impl Into<IStr>,
+		value: impl Into<FuncVal>,
+	) -> Result<&mut Self> {
+		self.field(name).hide().try_value(Val::Func(value.into()))?;
+		Ok(self)
+	}
 
 	pub fn build(self) -> ObjValue {
 		if self.sup.is_none() && self.map.is_empty() && self.assertions.is_empty() {
@@ -930,18 +946,19 @@
 pub struct ValueBuilder<'v>(&'v mut ObjValueBuilder);
 impl ObjMemberBuilder<ValueBuilder<'_>> {
 	/// Inserts value, replacing if it is already defined
-	pub fn value_unchecked(self, value: Val) {
+	pub fn value(self, value: impl Into<Val>) {
 		let (receiver, name, member) =
-			self.build_member(MaybeUnbound::Bound(Thunk::evaluated(value)));
+			self.build_member(MaybeUnbound::Bound(Thunk::evaluated(value.into())));
 		let entry = receiver.0.map.entry(name);
 		entry.insert(member);
 	}
 
-	pub fn value(self, value: Val) -> Result<()> {
-		self.thunk(Thunk::evaluated(value))
+	/// Tries to insert value, returns an error if it was already defined
+	pub fn try_value(self, value: impl Into<Val>) -> Result<()> {
+		self.thunk(Thunk::evaluated(value.into()))
 	}
-	pub fn thunk(self, value: Thunk<Val>) -> Result<()> {
-		self.binding(MaybeUnbound::Bound(value))
+	pub fn thunk(self, value: impl Into<Thunk<Val>>) -> Result<()> {
+		self.binding(MaybeUnbound::Bound(value.into()))
 	}
 	pub fn bindable(self, bindable: impl Unbound<Bound = Val>) -> Result<()> {
 		self.binding(MaybeUnbound::Unbound(Cc::new(tb!(bindable))))
@@ -963,8 +980,8 @@
 
 pub struct ExtendBuilder<'v>(&'v mut ObjValue);
 impl ObjMemberBuilder<ExtendBuilder<'_>> {
-	pub fn value(self, value: Val) {
-		self.binding(MaybeUnbound::Bound(Thunk::evaluated(value)));
+	pub fn value(self, value: impl Into<Val>) {
+		self.binding(MaybeUnbound::Bound(Thunk::evaluated(value.into())));
 	}
 	pub fn bindable(self, bindable: TraceBox<dyn Unbound<Bound = Val>>) {
 		self.binding(MaybeUnbound::Unbound(Cc::new(bindable)));
modifiedcrates/jrsonnet-evaluator/src/typed/conversions.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/typed/conversions.rs
+++ b/crates/jrsonnet-evaluator/src/typed/conversions.rs
@@ -276,7 +276,7 @@
 	const TYPE: &'static ComplexValType = &ComplexValType::Simple(ValType::Str);
 
 	fn into_untyped(value: Self) -> Result<Val> {
-		Ok(Val::Str(StrValue::Flat(value)))
+		Ok(Val::string(value))
 	}
 
 	fn from_untyped(value: Val) -> Result<Self> {
@@ -292,7 +292,7 @@
 	const TYPE: &'static ComplexValType = &ComplexValType::Simple(ValType::Str);
 
 	fn into_untyped(value: Self) -> Result<Val> {
-		Ok(Val::Str(StrValue::Flat(value.into())))
+		Ok(Val::string(value))
 	}
 
 	fn from_untyped(value: Val) -> Result<Self> {
@@ -308,7 +308,7 @@
 	const TYPE: &'static ComplexValType = &ComplexValType::Char;
 
 	fn into_untyped(value: Self) -> Result<Val> {
-		Ok(Val::Str(StrValue::Flat(value.to_string().into())))
+		Ok(Val::string(value))
 	}
 
 	fn from_untyped(value: Val) -> Result<Self> {
@@ -356,7 +356,7 @@
 				bail!("map key should serialize to string");
 			};
 			let value = V::into_untyped(v)?;
-			out.member(key).value_unchecked(value);
+			out.field(key).value(value);
 		}
 		Ok(Val::Obj(out.build()))
 	}
@@ -611,7 +611,7 @@
 
 	fn into_untyped(value: Self) -> Result<Val> {
 		match value {
-			IndexableVal::Str(s) => Ok(Val::Str(StrValue::Flat(s))),
+			IndexableVal::Str(s) => Ok(Val::string(s)),
 			IndexableVal::Arr(a) => Ok(Val::Arr(a)),
 		}
 	}
modifiedcrates/jrsonnet-evaluator/src/val.rsdiffbeforeafterboth
--- a/crates/jrsonnet-evaluator/src/val.rs
+++ b/crates/jrsonnet-evaluator/src/val.rs
@@ -142,6 +142,14 @@
 		}
 	}
 }
+impl<T, V: Trace> From<T> for Thunk<V>
+where
+	T: ThunkValue<Output = V>,
+{
+	fn from(value: T) -> Self {
+		Thunk::new(value)
+	}
+}
 
 impl<T: Trace + Default> Default for Thunk<T> {
 	fn default() -> Self {
@@ -323,21 +331,14 @@
 		}
 	}
 }
-impl From<&str> for StrValue {
-	fn from(value: &str) -> Self {
-		Self::Flat(value.into())
-	}
-}
-impl From<String> for StrValue {
-	fn from(value: String) -> Self {
-		Self::Flat(value.into())
+impl<T> From<T> for StrValue
+where
+	IStr: From<T>,
+{
+	fn from(value: T) -> Self {
+		Self::Flat(IStr::from(value))
 	}
 }
-impl From<IStr> for StrValue {
-	fn from(value: IStr) -> Self {
-		Self::Flat(value)
-	}
-}
 impl Display for StrValue {
 	fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 		match self {
@@ -401,7 +402,7 @@
 impl From<IndexableVal> for Val {
 	fn from(v: IndexableVal) -> Self {
 		match v {
-			IndexableVal::Str(s) => Self::Str(StrValue::Flat(s)),
+			IndexableVal::Str(s) => Self::string(s),
 			IndexableVal::Arr(a) => Self::Arr(a),
 		}
 	}
@@ -499,6 +500,34 @@
 			_ => bail!(ValueIsNotIndexable(self.value_type())),
 		})
 	}
+
+	pub fn function(function: impl Into<FuncVal>) -> Self {
+		Self::Func(function.into())
+	}
+	pub fn string(string: impl Into<StrValue>) -> Self {
+		Self::Str(string.into())
+	}
+}
+
+impl From<IStr> for Val {
+	fn from(value: IStr) -> Self {
+		Self::string(value)
+	}
+}
+impl From<String> for Val {
+	fn from(value: String) -> Self {
+		Self::string(value)
+	}
+}
+impl From<&str> for Val {
+	fn from(value: &str) -> Self {
+		Self::string(value)
+	}
+}
+impl From<ObjValue> for Val {
+	fn from(value: ObjValue) -> Self {
+		Self::Obj(value)
+	}
 }
 
 const fn is_function_like(val: &Val) -> bool {
modifiedcrates/jrsonnet-macros/src/lib.rsdiffbeforeafterboth
--- a/crates/jrsonnet-macros/src/lib.rs
+++ b/crates/jrsonnet-macros/src/lib.rs
@@ -567,18 +567,18 @@
 			if self.is_option {
 				quote! {
 					if let Some(value) = self.#ident {
-						out.member(#name.into())
+						out.field(#name)
 							#hide
 							#add
-							.value(<#ty as Typed>::into_untyped(value)?)?;
+							.try_value(<#ty as Typed>::into_untyped(value)?)?;
 					}
 				}
 			} else {
 				quote! {
-					out.member(#name.into())
+					out.field(#name)
 						#hide
 						#add
-						.value(<#ty as Typed>::into_untyped(self.#ident)?)?;
+						.try_value(<#ty as Typed>::into_untyped(self.#ident)?)?;
 				}
 			}
 		} else if self.is_option {
modifiedcrates/jrsonnet-stdlib/src/arrays.rsdiffbeforeafterboth
--- a/crates/jrsonnet-stdlib/src/arrays.rs
+++ b/crates/jrsonnet-stdlib/src/arrays.rs
@@ -36,7 +36,7 @@
 #[builtin]
 pub fn builtin_repeat(what: Either![IStr, ArrValue], count: usize) -> Result<Val> {
 	Ok(match what {
-		Either2::A(s) => Val::Str(StrValue::Flat(s.repeat(count).into())),
+		Either2::A(s) => Val::string(s.repeat(count)),
 		Either2::B(arr) => Val::Arr(
 			ArrValue::repeated(arr, count)
 				.ok_or_else(|| runtime_error!("repeated length overflow"))?,
modifiedcrates/jrsonnet-stdlib/src/lib.rsdiffbeforeafterboth
--- a/crates/jrsonnet-stdlib/src/lib.rs
+++ b/crates/jrsonnet-stdlib/src/lib.rs
@@ -6,13 +6,12 @@
 
 use jrsonnet_evaluator::{
 	error::{ErrorKind::*, Result},
-	function::{builtin::Builtin, CallLocation, FuncVal, TlaArg},
-	gc::TraceBox,
+	function::{CallLocation, FuncVal, TlaArg},
 	tb,
 	trace::PathResolver,
 	ContextBuilder, IStr, ObjValue, ObjValueBuilder, State, Thunk, Val,
 };
-use jrsonnet_gcmodule::{Cc, Trace};
+use jrsonnet_gcmodule::Trace;
 use jrsonnet_parser::Source;
 
 mod expr;
@@ -182,38 +181,24 @@
 	.iter()
 	.cloned()
 	{
-		builder
-			.member(name.into())
-			.hide()
-			.value(Val::Func(FuncVal::StaticBuiltin(builtin)))
-			.expect("no conflict");
+		builder.method(name, builtin);
 	}
 
-	builder
-		.member("extVar".into())
-		.hide()
-		.value(Val::Func(FuncVal::builtin(builtin_ext_var {
+	builder.method(
+		"extVar",
+		builtin_ext_var {
 			settings: settings.clone(),
-		})))
-		.expect("no conflict");
-	builder
-		.member("native".into())
-		.hide()
-		.value(Val::Func(FuncVal::builtin(builtin_native {
+		},
+	);
+	builder.method(
+		"native",
+		builtin_native {
 			settings: settings.clone(),
-		})))
-		.expect("no conflict");
-	builder
-		.member("trace".into())
-		.hide()
-		.value(Val::Func(FuncVal::builtin(builtin_trace { settings })))
-		.expect("no conflict");
+		},
+	);
+	builder.method("trace", builtin_trace { settings });
 
-	builder
-		.member("id".into())
-		.hide()
-		.value(Val::Func(FuncVal::Id))
-		.expect("no conflict");
+	builder.method("id", FuncVal::Id);
 
 	builder.build()
 }
@@ -293,7 +278,7 @@
 			#[cfg(not(feature = "legacy-this-file"))]
 			context: {
 				let mut context = ContextBuilder::with_capacity(_s, 1);
-				context.bind("std".into(), stdlib_thunk.clone());
+				context.bind("std", stdlib_thunk.clone());
 				context.build()
 			},
 			#[cfg(not(feature = "legacy-this-file"))]
@@ -338,10 +323,10 @@
 			.insert(name.into(), TlaArg::Code(parsed));
 		Ok(())
 	}
-	pub fn add_native(&self, name: IStr, cb: impl Builtin) {
+	pub fn add_native(&self, name: impl Into<IStr>, cb: impl Into<FuncVal>) {
 		self.settings_mut()
 			.ext_natives
-			.insert(name, Cc::new(tb!(cb)));
+			.insert(name.into(), cb.into());
 	}
 }
 impl jrsonnet_evaluator::ContextInitializer for ContextInitializer {
@@ -354,7 +339,7 @@
 	}
 	#[cfg(not(feature = "legacy-this-file"))]
 	fn populate(&self, _for_file: Source, builder: &mut ContextBuilder) {
-		builder.bind("std".into(), self.stdlib_thunk.clone());
+		builder.bind("std", self.stdlib_thunk.clone());
 	}
 	#[cfg(feature = "legacy-this-file")]
 	fn populate(&self, source: Source, builder: &mut ContextBuilder) {
@@ -362,14 +347,14 @@
 
 		let mut std = ObjValueBuilder::new();
 		std.with_super(self.stdlib_obj.clone());
-		std.member("thisFile".into())
+		std.field("thisFile".into())
 			.hide()
-			.value(Val::Str(StrValue::Flat(
+			.value(Val::string(
 				match source.source_path().path() {
 					Some(p) => self.settings().path_resolver.resolve(p).into(),
 					None => source.source_path().to_string().into(),
 				},
-			)))
+			))
 			.expect("this object builder is empty");
 		let stdlib_with_this_file = std.build();
 
modifiedcrates/jrsonnet-stdlib/src/misc.rsdiffbeforeafterboth
--- a/crates/jrsonnet-stdlib/src/misc.rs
+++ b/crates/jrsonnet-stdlib/src/misc.rs
@@ -47,7 +47,7 @@
 		.ext_natives
 		.get(&x)
 		.cloned()
-		.map_or(Val::Null, |v| Val::Func(FuncVal::Builtin(v)))
+		.map_or(Val::Null, |v| Val::Func(v))
 }
 
 #[builtin(fields(
modifiedcrates/jrsonnet-stdlib/src/objects.rsdiffbeforeafterboth
--- a/crates/jrsonnet-stdlib/src/objects.rs
+++ b/crates/jrsonnet-stdlib/src/objects.rs
@@ -122,7 +122,7 @@
 		if k == key {
 			continue;
 		}
-		new_obj.member(k).value_unchecked(v.unwrap())
+		new_obj.field(k).value(v.unwrap())
 	}
 
 	new_obj.build()
modifiedcrates/jrsonnet-stdlib/src/operator.rsdiffbeforeafterboth
--- a/crates/jrsonnet-stdlib/src/operator.rs
+++ b/crates/jrsonnet-stdlib/src/operator.rs
@@ -16,7 +16,7 @@
 	evaluate_mod_op(
 		&match a {
 			A(v) => Val::Num(v),
-			B(s) => Val::Str(StrValue::Flat(s)),
+			B(s) => Val::string(s),
 		},
 		&b,
 	)
modifiedcrates/jrsonnet-stdlib/src/sets.rsdiffbeforeafterboth
--- a/crates/jrsonnet-stdlib/src/sets.rs
+++ b/crates/jrsonnet-stdlib/src/sets.rs
@@ -1,11 +1,10 @@
 use std::cmp::Ordering;
 
 use jrsonnet_evaluator::{
-	error::Result,
 	function::{builtin, FuncVal},
 	operator::evaluate_compare_op,
 	val::ArrValue,
-	Thunk, Val,
+	Result, Thunk, Val,
 };
 use jrsonnet_parser::BinaryOpType;
 
@@ -108,7 +107,7 @@
 			}
 		};
 	}
-	while let Some(ac) = &ak {
+	while let Some(_ac) = &ak {
 		// In a, but not in b
 		out.push(av.clone().expect("ak != None"));
 		av = a.next();
modifiedcrates/jrsonnet-stdlib/src/strings.rsdiffbeforeafterboth
--- a/crates/jrsonnet-stdlib/src/strings.rs
+++ b/crates/jrsonnet-stdlib/src/strings.rs
@@ -3,7 +3,7 @@
 	error::{ErrorKind::*, Result},
 	function::builtin,
 	typed::{Either2, M1},
-	val::{ArrValue, StrValue},
+	val::ArrValue,
 	Either, IStr, Val,
 };
 
@@ -41,14 +41,8 @@
 pub fn builtin_splitlimit(str: IStr, c: IStr, maxsplits: Either![usize, M1]) -> ArrValue {
 	use Either2::*;
 	match maxsplits {
-		A(n) => str
-			.splitn(n + 1, &c as &str)
-			.map(|s| Val::Str(StrValue::Flat(s.into())))
-			.collect(),
-		B(_) => str
-			.split(&c as &str)
-			.map(|s| Val::Str(StrValue::Flat(s.into())))
-			.collect(),
+		A(n) => str.splitn(n + 1, &c as &str).map(Val::string).collect(),
+		B(_) => str.split(&c as &str).map(Val::string).collect(),
 	}
 }
 
modifiedtests/tests/builtin.rsdiffbeforeafterboth
--- a/tests/tests/builtin.rs
+++ b/tests/tests/builtin.rs
@@ -36,7 +36,7 @@
 	s.with_stdlib();
 	s.add_global(
 		"nativeAdd".into(),
-		Thunk::evaluated(Val::Func(FuncVal::StaticBuiltin(native_add::INST))),
+		Thunk::evaluated(Val::function(native_add::INST)),
 	);
 
 	let v = s.evaluate_snippet(
@@ -69,7 +69,7 @@
 	s.with_stdlib();
 	s.add_global(
 		"curryAdd".into(),
-		Thunk::evaluated(Val::Func(FuncVal::StaticBuiltin(curry_add::INST))),
+		Thunk::evaluated(Val::function(curry_add::INST)),
 	);
 
 	let v = s.evaluate_snippet(
modifiedtests/tests/common.rsdiffbeforeafterboth
--- a/tests/tests/common.rs
+++ b/tests/tests/common.rs
@@ -77,12 +77,8 @@
 #[allow(dead_code)]
 pub fn with_test(s: &State) {
 	let mut bobj = ObjValueBuilder::new();
-	bobj.member("assertThrow".into())
-		.hide()
-		.value_unchecked(Val::Func(FuncVal::StaticBuiltin(assert_throw::INST)));
-	bobj.member("paramNames".into())
-		.hide()
-		.value_unchecked(Val::Func(FuncVal::StaticBuiltin(param_names::INST)));
+	bobj.method("assertThrow", assert_throw::INST);
+	bobj.method("paramNames", param_names::INST);
 
 	s.add_global("test".into(), Thunk::evaluated(Val::Obj(bobj.build())))
 }