difftreelog
perf(evaluator) faster json functions
in: master
3 files changed
crates/jsonnet-evaluator/build.rsdiffbeforeafterboth1use bincode::serialize;2use jsonnet_parser::{3 parse, Expr, FieldMember, FieldName, LocExpr, Member, ObjBody, ParserSettings,4};5use jsonnet_stdlib::STDLIB_STR;6use std::{7 env,8 fs::File,9 io::Write,10 path::{Path, PathBuf},11 rc::Rc,12};1314fn main() {15 let parsed = parse(16 STDLIB_STR,17 &ParserSettings {18 file_name: Rc::new(PathBuf::from("std.jsonnet")),19 loc_data: true,20 },21 )22 .expect("parse");2324 let parsed = if cfg!(feature = "faster") {25 let LocExpr(expr, location) = parsed;26 LocExpr(27 Rc::new(match Rc::try_unwrap(expr).unwrap() {28 Expr::Obj(ObjBody::MemberList(members)) => Expr::Obj(ObjBody::MemberList(29 members30 .into_iter()31 .filter(|p| {32 !matches!(33 p,34 Member::Field(FieldMember {35 name: FieldName::Fixed(name),36 ..37 }) if **name == *"join"38 )39 })40 .collect(),41 )),42 _ => panic!("std value should be object"),43 }),44 location,45 )46 } else {47 parsed48 };4950 let out_dir = env::var("OUT_DIR").unwrap();51 let dest_path = Path::new(&out_dir).join("stdlib.bincode");52 let mut f = File::create(&dest_path).unwrap();53 f.write_all(&serialize(&parsed).expect("serialize"))54 .unwrap();55}crates/jsonnet-evaluator/src/evaluate.rsdiffbeforeafterboth--- a/crates/jsonnet-evaluator/src/evaluate.rs
+++ b/crates/jsonnet-evaluator/src/evaluate.rs
@@ -1,7 +1,7 @@
use crate::{
- context_creator, create_error, future_wrapper, lazy_val, push, with_state, Context,
- ContextCreator, Error, FuncDesc, LazyBinding, LazyVal, ObjMember, ObjValue, Result, Val,
- ValType,
+ context_creator, create_error, escape_string_json, future_wrapper, lazy_val, manifest_json_ex,
+ push, with_state, Context, ContextCreator, Error, FuncDesc, LazyBinding, LazyVal, ObjMember,
+ ObjValue, Result, Val, ValType,
};
use closure::closure;
use jsonnet_parser::{
@@ -730,6 +730,24 @@
(joiner, items) => panic!("bad join call: {:?} {:?}", joiner, items),
}
}
+ // Faster
+ ("std", "escapeStringJson") => {
+ assert_eq!(args.len(), 1);
+ match evaluate(context, &args[0].1)?.unwrap_if_lazy()? {
+ Val::Str(s) => Val::Str(escape_string_json(&s).into()),
+ _ => panic!("bad escapeStringJson call"),
+ }
+ }
+ // Faster
+ ("std", "manifestJsonEx") => {
+ assert_eq!(args.len(), 2);
+ let value = evaluate(context.clone(), &args[0].1)?.unwrap_if_lazy()?;
+ let ident = evaluate(context, &args[1].1)?.unwrap_if_lazy()?;
+ match (value, ident) {
+ (o, Val::Str(s)) => Val::Str(manifest_json_ex(&o, &s)?.into()),
+ _ => panic!("bad escapeStringJson call"),
+ }
+ }
(ns, name) => panic!("Intristic not found: {}.{}", ns, name),
},
Val::Func(f) => {
crates/jsonnet-evaluator/src/val.rsdiffbeforeafterboth--- a/crates/jsonnet-evaluator/src/val.rs
+++ b/crates/jsonnet-evaluator/src/val.rs
@@ -194,9 +194,97 @@
}
}
+pub fn manifest_json_ex(val: &Val, padding: &str) -> Result<String> {
+ let mut out = String::new();
+ manifest_json_ex_buf(val, &mut out, padding, &mut String::new())?;
+ Ok(out)
+}
+fn manifest_json_ex_buf(
+ val: &Val,
+ buf: &mut String,
+ padding: &str,
+ cur_padding: &mut String,
+) -> Result<()> {
+ use std::fmt::Write;
+ match val.unwrap_if_lazy()? {
+ Val::Bool(v) => {
+ if v {
+ buf.push_str("true");
} else {
- unreachable!()
+ buf.push_str("false");
+ }
+ }
+ Val::Null => buf.push_str("null"),
+ Val::Str(s) => buf.push_str(&escape_string_json(&s)),
+ Val::Num(n) => write!(buf, "{}", n).unwrap(),
+ Val::Arr(items) => {
+ buf.push_str("[\n");
+ if !items.is_empty() {
+ let old_len = cur_padding.len();
+ cur_padding.push_str(padding);
+ for (i, item) in items.iter().enumerate() {
+ if i != 0 {
+ buf.push_str(",\n")
+ }
+ buf.push_str(cur_padding);
+ manifest_json_ex_buf(item, buf, padding, cur_padding)?;
+ }
+ cur_padding.truncate(old_len);
+ }
+ buf.push('\n');
+ buf.push_str(cur_padding);
+ buf.push(']');
+ }
+ Val::Obj(obj) => {
+ buf.push_str("{\n");
+ let fields = obj.visible_fields();
+ if !fields.is_empty() {
+ let old_len = cur_padding.len();
+ cur_padding.push_str(padding);
+ for (i, field) in fields.into_iter().enumerate() {
+ if i != 0 {
+ buf.push_str(",\n")
+ }
+ buf.push_str(cur_padding);
+ buf.push_str(&escape_string_json(&field));
+ buf.push_str(": ");
+ manifest_json_ex_buf(&obj.get(field)?.unwrap(), buf, padding, cur_padding)?;
+ }
+ cur_padding.truncate(old_len);
+ }
+ buf.push('\n');
+ buf.push_str(cur_padding);
+ buf.push('}');
+ }
+ Val::Func(_) | Val::Intristic(_, _) => panic!("tried to manifest function"),
+ Val::Lazy(_) => unreachable!(),
+ };
+ Ok(())
+}
+pub fn escape_string_json(s: &str) -> String {
+ use std::fmt::Write;
+ let mut out = String::new();
+ out.push('"');
+ for c in s.chars() {
+ match c {
+ '"' => out.push_str("\\\""),
+ '\\' => out.push_str("\\\\"),
+ '\u{0008}' => out.push_str("\\b"),
+ '\u{000c}' => out.push_str("\\f"),
+ '\n' => out.push_str("\\n"),
+ '\r' => out.push_str("\\r"),
+ '\t' => out.push_str("\\t"),
+ c if c < 32 as char || (c >= 127 as char && c <= 159 as char) => {
+ write!(out, "\\u{:04x}", c as u32).unwrap()
}
- })
+ c => out.push(c),
+ }
}
+ out.push('"');
+ out
+}
+
+#[test]
+fn json_test() {
+ assert_eq!(escape_string_json("\u{001f}"), "\"\\u001f\"")
}