difftreelog
docs cleanup evaluator's docs
in: master
7 files changed
crates/jrsonnet-evaluator/src/builtin/stdlib.rsdiffbeforeafterboth--- a/crates/jrsonnet-evaluator/src/builtin/stdlib.rs
+++ b/crates/jrsonnet-evaluator/src/builtin/stdlib.rs
@@ -2,7 +2,7 @@
use std::{path::PathBuf, rc::Rc};
thread_local! {
- /// To avoid parsing again when issued from same thread
+ /// To avoid parsing again when issued from the same thread
#[allow(unreachable_code)]
static PARSED_STDLIB: LocExpr = {
#[cfg(feature = "codegenerated-stdlib")]
crates/jrsonnet-evaluator/src/evaluate.rsdiffbeforeafterboth--- a/crates/jrsonnet-evaluator/src/evaluate.rs
+++ b/crates/jrsonnet-evaluator/src/evaluate.rs
@@ -545,9 +545,9 @@
}
Val::Arr(Rc::new(out))
}
- ArrComp(expr, compspecs) => Val::Arr(
- // First compspec should be forspec, so no "None" possible here
- Rc::new(evaluate_comp(context, &|ctx| evaluate(ctx, expr), compspecs)?.unwrap()),
+ ArrComp(expr, comp_specs) => Val::Arr(
+ // First comp_spec should be for_spec, so no "None" possible here
+ Rc::new(evaluate_comp(context, &|ctx| evaluate(ctx, expr), comp_specs)?.unwrap()),
),
Obj(body) => Val::Obj(evaluate_object(context, body)?),
ObjExtend(s, t) => evaluate_add_op(
@@ -564,7 +564,7 @@
|| "assertion condition".to_owned(),
|| {
evaluate(context.clone(), &value)?
- .try_cast_bool("assertion condition should be boolean")
+ .try_cast_bool("assertion condition should be of type `boolean`")
},
)?;
if assertion_result {
@@ -580,7 +580,7 @@
|| "error statement".to_owned(),
|| {
throw!(RuntimeError(
- evaluate(context, e)?.try_cast_str("error text should be string")?,
+ evaluate(context, e)?.try_cast_str("error text should be of type `string`")?,
))
},
)?,
@@ -590,7 +590,7 @@
cond_else,
} => {
if evaluate(context.clone(), &cond.0)?
- .try_cast_bool("if condition should be boolean")?
+ .try_cast_bool("if condition should be of type `boolean`")?
{
evaluate(context, cond_then)?
} else {
@@ -603,7 +603,7 @@
Import(path) => {
let mut tmp = loc
.clone()
- .expect("imports can't be used without loc_data")
+ .expect("imports cannot be used without loc_data")
.0;
let import_location = Rc::make_mut(&mut tmp);
import_location.pop();
@@ -616,7 +616,7 @@
ImportStr(path) => {
let mut tmp = loc
.clone()
- .expect("imports can't be used without loc_data")
+ .expect("imports cannot be used without loc_data")
.0;
let import_location = Rc::make_mut(&mut tmp);
import_location.pop();
crates/jrsonnet-evaluator/src/function.rsdiffbeforeafterboth1use crate::{error::Error::*, evaluate, lazy_val, resolved_lazy_val, throw, Context, Result, Val};2use closure::closure;3use jrsonnet_parser::{ArgsDesc, ParamsDesc};4use rustc_hash::FxHashMap;5use std::{collections::HashMap, hash::BuildHasherDefault, rc::Rc};67const NO_DEFAULT_CONTEXT: &str =8 "no default context set for call with defined default parameter value";910/// Creates correct [context](Context) for function body evaluation, returning error on invalid call11///12/// * `ctx` used for passed argument expressions execution, and for body execution (if `body_ctx` is not set)13/// * `body_ctx` used for default parameter values execution, and for body execution (if set)14/// * `params` function parameters definition15/// * `args` passed function arguments16/// * `tailstruct` if true - function arguments is eager executed, otherwise - lazy17pub fn parse_function_call(18 ctx: Context,19 body_ctx: Option<Context>,20 params: &ParamsDesc,21 args: &ArgsDesc,22 tailstrict: bool,23) -> Result<Context> {24 let mut out = HashMap::with_capacity_and_hasher(params.len(), BuildHasherDefault::default());25 let mut positioned_args = vec![None; params.0.len()];26 for (id, arg) in args.iter().enumerate() {27 let idx = if let Some(name) = &arg.0 {28 params29 .iter()30 .position(|p| *p.0 == *name)31 .ok_or_else(|| UnknownFunctionParameter(name.clone()))?32 } else {33 id34 };3536 if idx >= params.len() {37 throw!(TooManyArgsFunctionHas(params.len()));38 }39 if positioned_args[idx].is_some() {40 throw!(BindingParameterASecondTime(params[idx].0.clone()));41 }42 positioned_args[idx] = Some(arg.1.clone());43 }44 // Fill defaults45 for (id, p) in params.iter().enumerate() {46 let (ctx, expr) = if let Some(arg) = &positioned_args[id] {47 (ctx.clone(), arg)48 } else if let Some(default) = &p.1 {49 (body_ctx.clone().expect(NO_DEFAULT_CONTEXT), default)50 } else {51 throw!(FunctionParameterNotBoundInCall(p.0.clone()));52 };53 let val = if tailstrict {54 resolved_lazy_val!(evaluate(ctx, expr)?)55 } else {56 lazy_val!(closure!(clone ctx, clone expr, ||evaluate(ctx.clone(), &expr)))57 };58 out.insert(p.0.clone(), val);59 }6061 Ok(body_ctx.unwrap_or(ctx).extend(out, None, None, None))62}6364pub fn parse_function_call_map(65 ctx: Context,66 body_ctx: Option<Context>,67 params: &ParamsDesc,68 args: &HashMap<Rc<str>, Val>,69 tailstrict: bool,70) -> Result<Context> {71 let mut out = FxHashMap::with_capacity_and_hasher(params.len(), BuildHasherDefault::default());72 let mut positioned_args = vec![None; params.0.len()];73 for (name, val) in args.iter() {74 let idx = params75 .iter()76 .position(|p| *p.0 == **name)77 .ok_or_else(|| UnknownFunctionParameter((&name as &str).to_owned()))?;7879 if idx >= params.len() {80 throw!(TooManyArgsFunctionHas(params.len()));81 }82 if positioned_args[idx].is_some() {83 throw!(BindingParameterASecondTime(params[idx].0.clone()));84 }85 positioned_args[idx] = Some(val.clone());86 }87 // Fill defaults88 for (id, p) in params.iter().enumerate() {89 let val = if let Some(arg) = positioned_args[id].take() {90 resolved_lazy_val!(arg)91 } else if let Some(default) = &p.1 {92 if tailstrict {93 resolved_lazy_val!(evaluate(94 body_ctx.clone().expect(NO_DEFAULT_CONTEXT),95 default96 )?)97 } else {98 let body_ctx = body_ctx.clone();99 let default = default.clone();100 lazy_val!(move || {101 evaluate(body_ctx.clone().expect(NO_DEFAULT_CONTEXT), &default)102 })103 }104 } else {105 throw!(FunctionParameterNotBoundInCall(p.0.clone()));106 };107 out.insert(p.0.clone(), val);108 }109110 Ok(body_ctx.unwrap_or(ctx).extend(out, None, None, None))111}112113pub(crate) fn place_args(114 ctx: Context,115 body_ctx: Option<Context>,116 params: &ParamsDesc,117 args: &[Val],118) -> Result<Context> {119 let mut out = FxHashMap::with_capacity_and_hasher(params.len(), BuildHasherDefault::default());120 let mut positioned_args = vec![None; params.0.len()];121 for (id, arg) in args.iter().enumerate() {122 if id >= params.len() {123 throw!(TooManyArgsFunctionHas(params.len()));124 }125 positioned_args[id] = Some(arg);126 }127 // Fill defaults128 for (id, p) in params.iter().enumerate() {129 let val = if let Some(arg) = &positioned_args[id] {130 (*arg).clone()131 } else if let Some(default) = &p.1 {132 evaluate(ctx.clone(), default)?133 } else {134 throw!(FunctionParameterNotBoundInCall(p.0.clone()));135 };136 out.insert(p.0.clone(), resolved_lazy_val!(val));137 }138139 Ok(body_ctx.unwrap_or(ctx).extend(out, None, None, None))140}141142#[macro_export]143macro_rules! parse_args {144 ($ctx: expr, $fn_name: expr, $args: expr, $total_args: expr, [145 $($id: expr, $name: ident $(: [$($p: path)|+] $(!! $a: path)?)?, $nt: expr);+ $(;)?146 ], $handler:block) => {{147 use crate::{throw, error::Error::*};148 let args = $args;149 if args.len() > $total_args {150 throw!(TooManyArgsFunctionHas($total_args));151 }152 $(153 if args.len() <= $id {154 throw!(FunctionParameterNotBoundInCall(stringify!($name).into()));155 }156 let $name = &args[$id];157 if $name.0.is_some() {158 if $name.0.as_ref().unwrap() != stringify!($name) {159 throw!(IntrinsicArgumentReorderingIsNotSupportedYet);160 }161 }162 let $name = evaluate($ctx.clone(), &$name.1)?;163 $(164 match $name {165 $($p(_))|+ => {},166 _ => throw!(TypeMismatch(167 concat!($fn_name, " ", stringify!($id), "nd (", stringify!($name), ") argument"),168 $nt, $name.value_type()?169 )),170 };171 $(172 let $name = match $name {173 $a(v) => v,174 _ =>throw!(TypeMismatch(concat!($fn_name, " ", stringify!($id), "nd (", stringify!($name), ") argument"), $nt, $name.value_type()?)),175 };176 )*177 )*178 )+179 ($handler as crate::Result<_>)180 }};181}182183#[test]184fn test() -> Result<()> {185 use crate::val::ValType;186 use jrsonnet_parser::*;187 let state = crate::EvaluationState::default();188 let evaluator = state.with_stdlib();189 let ctx = evaluator.create_default_context()?;190 evaluator.run_in_state(|| {191 parse_args!(ctx, "test", ArgsDesc(vec![192 Arg(None, el!(Expr::Num(2.0))),193 Arg(Some("b".into()), el!(Expr::Num(1.0))),194 ]), 2, [195 0, a: [Val::Num]!!Val::Num, vec![ValType::Num];196 1, b: [Val::Num]!!Val::Num, vec![ValType::Num];197 ], {198 assert!((a - 2.0).abs() <= f64::EPSILON);199 assert!((b - 1.0).abs() <= f64::EPSILON);200 Ok(())201 })202 .unwrap();203 Ok(())204 })205}crates/jrsonnet-evaluator/src/import.rsdiffbeforeafterboth--- a/crates/jrsonnet-evaluator/src/import.rs
+++ b/crates/jrsonnet-evaluator/src/import.rs
@@ -9,17 +9,19 @@
/// Implements file resolution logic for `import` and `importStr`
pub trait ImportResolver {
- /// Resolve real file path, i.e
- /// `(/home/user/manifests, b.libsonnet)` can resolve to both `/home/user/manifests/b.libsonnet` and to `/home/user/vendor/b.libsonnet`
- /// (Where vendor is a library path)
+ /// Resolves real file path, e.g. `(/home/user/manifests, b.libjsonnet)` can correspond
+ /// both to `/home/user/manifests/b.libjsonnet` and to `/home/user/${vendor}/b.libjsonnet`
+ /// where `${vendor}` is a library path.
fn resolve_file(&self, from: &PathBuf, path: &PathBuf) -> Result<Rc<PathBuf>>;
+
/// Reads file from filesystem, should be used only with path received from `resolve_file`
fn load_file_contents(&self, resolved: &PathBuf) -> Result<Rc<str>>;
+
/// # Safety
///
- /// For use in bindings, do not try to use it elsewhere
- /// Implementations, which are not intended to be
- /// used in bindings, should panic in this method
+ /// For use only in bindings, should not be used elsewhere.
+ /// Implementations which are not intended to be used in bindings
+ /// should panic on call to this method.
unsafe fn as_any(&self) -> &dyn Any;
}
@@ -29,12 +31,14 @@
fn resolve_file(&self, from: &PathBuf, path: &PathBuf) -> Result<Rc<PathBuf>> {
throw!(ImportNotSupported(from.clone(), path.clone()))
}
+
fn load_file_contents(&self, _resolved: &PathBuf) -> Result<Rc<str>> {
// Can be only caused by library direct consumer, not by supplied jsonnet
panic!("dummy resolver can't load any file")
}
+
unsafe fn as_any(&self) -> &dyn Any {
- panic!("this resolver can't be used as any")
+ panic!("`as_any($self)` is not supported by dummy resolver")
}
}
impl Default for Box<dyn ImportResolver> {
@@ -46,8 +50,8 @@
/// File resolver, can load file from both FS and library paths
#[derive(Default)]
pub struct FileImportResolver {
- /// Library directories to search for file
- /// In original jsonnet referred as jpath
+ /// Library directories to search for file.
+ /// Referred to as `jpath` in original jsonnet implementation.
pub library_paths: Vec<PathBuf>,
}
impl ImportResolver for FileImportResolver {
@@ -81,7 +85,7 @@
type ResolutionData = (PathBuf, PathBuf);
-/// Caches results of underlying resolver implementation
+/// Caches results of the underlying resolver
pub struct CachingImportResolver {
resolution_cache: RefCell<HashMap<ResolutionData, Result<Rc<PathBuf>>>>,
loading_cache: RefCell<HashMap<PathBuf, Result<Rc<str>>>>,
@@ -95,6 +99,7 @@
.or_insert_with(|| self.inner.resolve_file(from, path))
.clone()
}
+
fn load_file_contents(&self, resolved: &PathBuf) -> Result<Rc<str>> {
self.loading_cache
.borrow_mut()
crates/jrsonnet-evaluator/src/lib.rsdiffbeforeafterboth--- a/crates/jrsonnet-evaluator/src/lib.rs
+++ b/crates/jrsonnet-evaluator/src/lib.rs
@@ -56,11 +56,11 @@
}
pub struct EvaluationSettings {
- /// Limits recursion by limiting stack frames
+ /// Limits recursion by limiting the number of stack frames
pub max_stack: usize,
- /// Limit amount of stack trace items preserved
+ /// Limits amount of stack trace items preserved
pub max_trace: usize,
- /// Used for std.extVar
+ /// Used for s`td.extVar`
pub ext_vars: HashMap<Rc<str>, Val>,
/// Used for ext.native
pub ext_natives: HashMap<Rc<str>, Rc<NativeCallback>>,
@@ -96,10 +96,9 @@
#[derive(Default)]
struct EvaluationData {
- /// Used for stack overflow detection, stacktrace is now populated on unwind
+ /// Used for stack overflow detection, stacktrace is populated on unwind
stack_depth: usize,
- /// Contains file source codes and evaluated results for imports and pretty
- /// printing stacktraces
+ /// Contains file source codes and evaluation results for imports and pretty-printed stacktraces
files: HashMap<Rc<PathBuf>, FileData>,
str_files: HashMap<Rc<PathBuf>, Rc<str>>,
}
@@ -118,8 +117,8 @@
}
thread_local! {
- /// Contains state for currently executing file
- /// Global state is fine there
+ /// Contains the state for a currently executed file.
+ /// Global state is fine here.
pub(crate) static EVAL_STATE: RefCell<Option<EvaluationState>> = RefCell::new(None)
}
pub(crate) fn with_state<T>(f: impl FnOnce(&EvaluationState) -> T) -> T {
@@ -142,7 +141,7 @@
pub struct EvaluationState(Rc<EvaluationStateInternals>);
impl EvaluationState {
- /// Parses and adds file to loaded
+ /// Parses and adds files as loaded
pub fn add_file(&self, path: Rc<PathBuf>, source_code: Rc<str>) -> Result<()> {
self.add_parsed_file(
path.clone(),
@@ -264,7 +263,7 @@
Context::new().extend_unbound(new_bindings, None, None, None)
}
- /// Executes code, creating new stack frame
+ /// Executes code creating a new stack frame
pub fn push<T>(
&self,
e: &ExprLocation,
@@ -294,7 +293,7 @@
result
}
- /// Runs passed function in state (required, if function needs to modify stack trace)
+ /// Runs passed function in state (required if function needs to modify stack trace)
pub fn run_in_state<T>(&self, f: impl FnOnce() -> T) -> T {
EVAL_STATE.with(|v| {
let has_state = v.borrow().is_some();
@@ -328,7 +327,7 @@
self.run_in_state(|| val.manifest_stream(&self.manifest_format()))
}
- /// If passed value is function - call with set TLA
+ /// If passed value is function then call with set TLA
pub fn with_tla(&self, val: Val) -> Result<Val> {
Ok(match val {
Val::Func(func) => func.evaluate_map(
@@ -357,7 +356,7 @@
}
}
-/// Raw methods evaluates passed values, but not performs TLA execution
+/// Raw methods evaluate passed values but don't perform TLA execution
impl EvaluationState {
pub fn evaluate_file_raw(&self, name: &PathBuf) -> Result<Val> {
self.run_in_state(|| self.import_file(&std::env::current_dir().expect("cwd"), &name))
@@ -365,7 +364,7 @@
pub fn evaluate_file_raw_nocwd(&self, name: &PathBuf) -> Result<Val> {
self.run_in_state(|| self.import_file(&PathBuf::from("."), &name))
}
- /// Parses and evaluates snippet
+ /// Parses and evaluates the given snippet
pub fn evaluate_snippet_raw(&self, source: Rc<PathBuf>, code: Rc<str>) -> Result<Val> {
let parsed = parse(
&code,
@@ -378,7 +377,7 @@
self.add_parsed_file(source, code, parsed.clone())?;
self.evaluate_expr_raw(parsed)
}
- /// Evaluates parsed expression
+ /// Evaluates the parsed expression
pub fn evaluate_expr_raw(&self, code: LocExpr) -> Result<Val> {
self.run_in_state(|| evaluate(self.create_default_context()?, &code))
}
crates/jrsonnet-evaluator/src/trace/mod.rsdiffbeforeafterboth--- a/crates/jrsonnet-evaluator/src/trace/mod.rs
+++ b/crates/jrsonnet-evaluator/src/trace/mod.rs
@@ -4,13 +4,13 @@
pub use location::*;
use std::path::PathBuf;
-/// How paths should be displayed
+/// The way paths should be displayed
pub enum PathResolver {
- /// Only filename will be shown
+ /// Only filename
FileName,
- /// Absolute path of file
+ /// Absolute path
Absolute,
- /// Relative path from base directory
+ /// Path relative to base directory
Relative(PathBuf),
}
@@ -32,7 +32,7 @@
}
}
-/// Implements trace to string pretty-printing
+/// Implements pretty-printing of traces
pub trait TraceFormat {
fn write_trace(
&self,
@@ -73,7 +73,7 @@
Ok(())
}
-/// vanilla jsonnet like formatting
+/// vanilla-like jsonnet formatting
pub struct CompactFormat {
pub resolver: PathResolver,
pub padding: usize,
crates/jrsonnet-evaluator/src/val.rsdiffbeforeafterboth--- a/crates/jrsonnet-evaluator/src/val.rs
+++ b/crates/jrsonnet-evaluator/src/val.rs
@@ -225,7 +225,8 @@
};
}
impl Val {
- /// Creates Val::Num after checking for overflow. As numbers are f64, we can just check for finity
+ /// Creates `Val::Num` after checking for numeric overflow.
+ /// As numbers are `f64`, we can just check for their finity.
pub fn new_checked_num(num: f64) -> Result<Val> {
if num.is_finite() {
Ok(Val::Num(num))
@@ -379,7 +380,7 @@
.map(|s| s.into())
}
- /// Calls std.manifestJson
+ /// Calls `std.manifestJson`
#[cfg(feature = "faster")]
pub fn to_std_json(&self, padding: usize) -> Result<Rc<str>> {
manifest_json_ex(
@@ -392,7 +393,7 @@
.map(|s| s.into())
}
- /// Calls std.manifestJson
+ /// Calls `std.manifestJson`
#[cfg(not(feature = "faster"))]
pub fn to_std_json(&self, padding: usize) -> Result<Rc<str>> {
with_state(|s| {
@@ -444,7 +445,7 @@
matches!(val, Val::Func(_))
}
-/// Implements std.primitiveEquals builtin
+/// Native implementation of `std.primitiveEquals`
pub fn primitive_equals(val_a: &Val, val_b: &Val) -> Result<bool> {
Ok(match (val_a.unwrap_if_lazy()?, val_b.unwrap_if_lazy()?) {
(Val::Bool(a), Val::Bool(b)) => a == b,
@@ -464,7 +465,7 @@
})
}
-/// Native implementation of std.equals
+/// Native implementation of `std.equals`
pub fn equals(val_a: &Val, val_b: &Val) -> Result<bool> {
let val_a = val_a.unwrap_if_lazy()?;
let val_b = val_b.unwrap_if_lazy()?;