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core/type_inferencer: Add special rule for np_array

This commit is contained in:
David Mak 2024-06-04 17:50:09 +08:00
parent 82bf14785b
commit c2fdb12397
1 changed files with 75 additions and 5 deletions

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@ -9,7 +9,7 @@ use super::{magic_methods::*, type_error::TypeError, typedef::CallId};
use crate::{
symbol_resolver::{SymbolResolver, SymbolValue},
toplevel::{
helper::PRIMITIVE_DEF_IDS,
helper::{arraylike_flatten_element_type, arraylike_get_ndims, PRIMITIVE_DEF_IDS},
numpy::{make_ndarray_ty, unpack_ndarray_var_tys},
TopLevelContext,
},
@ -1254,6 +1254,77 @@ impl<'a> Inferencer<'a> {
}))
}
// 1-argument ndarray n-dimensional creation functions
if id == &"np_array".into() && args.len() == 1 {
let arg0 = self.fold_expr(args.remove(0))?;
let keywords = keywords.iter()
.map(|v| fold::fold_keyword(self, v.clone()))
.collect::<Result<Vec<_>, _>>()?;
let ndmin_kw = keywords.iter()
.find(|kwarg| kwarg.node.arg.is_some_and(|id| id == "ndmin".into()));
let ty = arraylike_flatten_element_type(self.unifier, arg0.custom.unwrap());
let ndims = if let Some(ndmin_kw) = ndmin_kw {
match &ndmin_kw.node.value.node {
ExprKind::Constant { value, .. } => match value {
ast::Constant::Int(value) => *value as u64,
_ => return Err(HashSet::from(["Expected uint64 for ndims".to_string()])),
}
_ => arraylike_get_ndims(self.unifier, arg0.custom.unwrap())
}
} else {
arraylike_get_ndims(self.unifier, arg0.custom.unwrap())
};
let ndims = self.unifier.get_fresh_literal(
vec![SymbolValue::U64(ndims)],
None,
);
let ret = make_ndarray_ty(
self.unifier,
self.primitives,
Some(ty),
Some(ndims),
);
let custom = self.unifier.add_ty(TypeEnum::TFunc(FunSignature {
args: vec![
FuncArg {
name: "object".into(),
ty: arg0.custom.unwrap(),
default_value: None
},
FuncArg {
name: "copy".into(),
ty: self.primitives.bool,
default_value: Some(SymbolValue::Bool(true)),
},
FuncArg {
name: "ndmin".into(),
ty: self.primitives.int32,
default_value: Some(SymbolValue::U32(0)),
},
],
ret,
vars: VarMap::new(),
}));
return Ok(Some(Located {
location,
custom: Some(ret),
node: ExprKind::Call {
func: Box::new(Located {
custom: Some(custom),
location: func.location,
node: ExprKind::Name { id: *id, ctx: ctx.clone() },
}),
args: vec![arg0],
keywords,
},
}))
}
Ok(None)
}
@ -1264,11 +1335,10 @@ impl<'a> Inferencer<'a> {
mut args: Vec<ast::Expr<()>>,
keywords: Vec<Located<ast::KeywordData>>,
) -> Result<ast::Expr<Option<Type>>, HashSet<String>> {
let func = if let Some(spec_call_func) = self.try_fold_special_call(location, &func, &mut args, &keywords)? {
if let Some(spec_call_func) = self.try_fold_special_call(location, &func, &mut args, &keywords)? {
return Ok(spec_call_func)
} else {
func
};
}
let func = Box::new(self.fold_expr(func)?);
let args = args.into_iter().map(|v| self.fold_expr(v)).collect::<Result<Vec<_>, _>>()?;
let keywords = keywords