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Podlog language v1 (#225)

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* Initial commit for Podlog language

* Spell-checker thinks that 'lits' is a bad abbreviation for 'literals'

* Enable SetContains/SetNotContains

* Update language based on review feedback

* Typo/comment fix

* Make native predicates case-sensitive

* Enforce max batch size in CustomPredicateBatchBuilder

* Remove some unnecessary checks for things handled by the grammar

* Clean up more unnecessary error-checking

* Typo

* Simplify hex processing

* Replace various errors with unreachable!()

* Translate from big-endian hex string to little-endian RawValue

* Update hex en/decoding functions
This commit is contained in:
Rob Knight 2025-06-07 07:17:23 +02:00 • committed by GitHub
parent e8edbbc1c5
commit 541c264586
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GPG key ID: B5690EEEBB952194
11 changed files with 2259 additions and 29 deletions
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16
src/frontend/custom.rs
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@ -31,7 +31,7 @@ pub fn key(s: &str) -> KeyOrWildcardStr {
}
/// Builder Argument for the StatementTmplBuilder
#[derive(Clone)]
#[derive(Clone, Debug)]
pub enum BuilderArg {
Literal(Value),
/// Key: (origin, key), where origin is SELF or Wildcard and key is Key or Wildcard
@ -79,8 +79,8 @@ pub fn literal(v: impl Into<Value>) -> BuilderArg {
#[derive(Clone)]
pub struct StatementTmplBuilder {
predicate: Predicate,
args: Vec<BuilderArg>,
pub(crate) predicate: Predicate,
pub(crate) args: Vec<BuilderArg>,
}
impl StatementTmplBuilder {
@ -98,7 +98,7 @@ impl StatementTmplBuilder {
/// Desugar the predicate to a simpler form
/// Should mirror the logic in `MainPodBuilder::lower_op`
fn desugar(self) -> StatementTmplBuilder {
pub(crate) fn desugar(self) -> StatementTmplBuilder {
match self.predicate {
Predicate::Native(NativePredicate::Gt) => {
let mut stb = StatementTmplBuilder {
@ -184,6 +184,14 @@ impl CustomPredicateBatchBuilder {
priv_args: &[&str],
sts: &[StatementTmplBuilder],
) -> Result<Predicate> {
if self.predicates.len() >= self.params.max_custom_batch_size {
return Err(Error::max_length(
"self.predicates.len".to_string(),
self.predicates.len(),
self.params.max_custom_batch_size,
));
}
if args.len() > self.params.max_statement_args {
return Err(Error::max_length(
"args.len".to_string(),