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Conform to OPA 0.61.0. (#118)

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Implement `import rego.v1`
https://www.openpolicyagent.org/docs/latest/policy-language/#the-regov1-import

- `if` required before rule body
- import rego.v1 automatically imports future.keywords
- handle import shadowing
- data, input cannot be shadowed
- deprecated functions as disallowed
- rules must have assignment or body
- `contains` required for parital set

Signed-off-by: Anand Krishnamoorthi <anakrish@microsoft.com>
This commit is contained in:
Anand Krishnamoorthi
2024-01-31 21:39:02 -08:00
committed by GitHub
parent 5799a3e6c4
commit beea2274d3
10 changed files with 575 additions and 30 deletions
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13
src/utils.rs
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@@ -109,7 +109,7 @@ pub fn get_path_string(refr: &Expr, document: Option<&str>) -> Result<String> {
Ok(comps.join("."))
}
pub type FunctionTable = BTreeMap<String, (Vec<Ref<Rule>>, u8)>;
pub type FunctionTable = BTreeMap<String, (Vec<Ref<Rule>>, u8, Ref<Module>)>;
fn get_extra_arg_impl(
expr: &Expr,
@@ -118,11 +118,11 @@ fn get_extra_arg_impl(
) -> Result<Option<Ref<Expr>>> {
if let Expr::Call { fcn, params, .. } = expr {
let full_path = get_path_string(fcn, module)?;
let n_args = if let Some((_, n_args)) = functions.get(&full_path) {
let n_args = if let Some((_, n_args, _)) = functions.get(&full_path) {
*n_args
} else {
let path = get_path_string(fcn, None)?;
if let Some((_, n_args)) = functions.get(&path) {
if let Some((_, n_args, _)) = functions.get(&path) {
*n_args
} else if let Some((_, n_args)) = BUILTINS.get(path.as_str()) {
*n_args
@@ -169,7 +169,7 @@ pub fn gather_functions(modules: &[Ref<Module>]) -> Result<FunctionTable> {
{
let full_path = get_path_string(refr, Some(module_path.as_str()))?;
if let Some((functions, arity)) = table.get_mut(&full_path) {
if let Some((functions, arity, _)) = table.get_mut(&full_path) {
if args.len() as u8 != *arity {
bail!(span.error(
format!("{full_path} was previously defined with {arity} arguments.")
@@ -178,7 +178,10 @@ pub fn gather_functions(modules: &[Ref<Module>]) -> Result<FunctionTable> {
}
functions.push(rule.clone());
} else {
table.insert(full_path, (vec![rule.clone()], args.len() as u8));
table.insert(
full_path,
(vec![rule.clone()], args.len() as u8, module.clone()),
);
}
}
}