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[core] codegen: Refactor len()

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Based on 54a842a9: core/ndstrides: implement len(ndarray) & refactor
len()
This commit is contained in:
David Mak 2024-12-17 14:21:13 +08:00
parent ef01578467
commit 9a9eeba28d
1 changed files with 26 additions and 35 deletions
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59
nac3core/src/codegen/builtin_fns.rs
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@ -14,9 +14,9 @@ use super::{
numpy,
numpy::ndarray_elementwise_unaryop_impl,
stmt::gen_for_callback_incrementing,
types::{ndarray::NDArrayType, TupleType},
types::{ndarray::NDArrayType, ListType, TupleType},
values::{
ndarray::NDArrayValue, ArrayLikeValue, ProxyValue, RangeValue, TypedArrayLikeAccessor,
ndarray::NDArrayValue, ProxyValue, RangeValue, TypedArrayLikeAccessor,
UntypedArrayLikeAccessor,
},
CodeGenContext, CodeGenerator,
@ -55,42 +55,33 @@ pub fn call_len<'ctx, G: CodeGenerator + ?Sized>(
calculate_len_for_slice_range(generator, ctx, start, end, step)
} else {
match &*ctx.unifier.get_ty_immutable(arg_ty) {
TypeEnum::TTuple { ty, .. } => llvm_i32.const_int(ty.len() as u64, false),
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::List.id() => {
let zero = llvm_i32.const_zero();
let len = ctx
.build_gep_and_load(
arg.into_pointer_value(),
&[zero, llvm_i32.const_int(1, false)],
None,
)
.into_int_value();
ctx.builder.build_int_truncate_or_bit_cast(len, llvm_i32, "len").unwrap()
TypeEnum::TTuple { .. } => {
let tuple = TupleType::from_unifier_type(generator, ctx, arg_ty)
.map_value(arg.into_struct_value(), None);
llvm_i32.const_int(tuple.get_type().num_elements().into(), false)
}
TypeEnum::TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
let llvm_usize = generator.get_size_type(ctx.ctx);
let arg = NDArrayType::from_unifier_type(generator, ctx, arg_ty)
TypeEnum::TObj { obj_id, .. }
if *obj_id == ctx.primitives.ndarray.obj_id(&ctx.unifier).unwrap() =>
{
let ndarray = NDArrayType::from_unifier_type(generator, ctx, arg_ty)
.map_value(arg.into_pointer_value(), None);
let ndims = arg.shape().size(ctx, generator);
ctx.make_assert(
generator,
ctx.builder
.build_int_compare(IntPredicate::NE, ndims, llvm_usize.const_zero(), "")
.unwrap(),
"0:TypeError",
"len() of unsized object",
[None, None, None],
ctx.current_loc,
);
let len = unsafe {
arg.shape().get_typed_unchecked(ctx, generator, &llvm_usize.const_zero(), None)
};
ctx.builder.build_int_truncate_or_bit_cast(len, llvm_i32, "len").unwrap()
.build_int_truncate_or_bit_cast(ndarray.len(generator, ctx), llvm_i32, "len")
.unwrap()
}
_ => codegen_unreachable!(ctx),
TypeEnum::TObj { obj_id, .. }
if *obj_id == ctx.primitives.list.obj_id(&ctx.unifier).unwrap() =>
{
let list = ListType::from_unifier_type(generator, ctx, arg_ty)
.map_value(arg.into_pointer_value(), None);
ctx.builder
.build_int_truncate_or_bit_cast(list.load_size(ctx, None), llvm_i32, "len")
.unwrap()
}
_ => unsupported_type(ctx, "len", &[arg_ty]),
}
})
}