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core/codegen: implement & refactor call_len()

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lyken 2024-08-20 12:29:31 +08:00
parent 69e730478e
commit e78e5600bf
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GPG Key ID: 3BD5FC6AC8325DD8
1 changed files with 23 additions and 50 deletions
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73
nac3core/src/codegen/builtin_fns.rs
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@ -4,8 +4,7 @@ use inkwell::{FloatPredicate, IntPredicate, OptimizationLevel};
use itertools::Itertools;
use crate::codegen::classes::{
ArrayLikeValue, NDArrayValue, ProxyValue, RangeValue, TypedArrayLikeAccessor,
UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
NDArrayValue, ProxyValue, RangeValue, UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
};
use crate::codegen::expr::destructure_range;
use crate::codegen::irrt::calculate_len_for_slice_range;
@ -14,7 +13,13 @@ use crate::codegen::stmt::gen_for_callback_incrementing;
use crate::codegen::{extern_fns, irrt, llvm_intrinsics, numpy, CodeGenContext, CodeGenerator};
use crate::toplevel::helper::PrimDef;
use crate::toplevel::numpy::unpack_ndarray_var_tys;
use crate::typecheck::typedef::{Type, TypeEnum};
use crate::typecheck::typedef::Type;
use super::model::*;
use super::object::any::AnyObject;
use super::object::list::ListObject;
use super::object::ndarray::NDArrayObject;
use super::object::tuple::TupleObject;
/// Shorthand for [`unreachable!()`] when a type of argument is not supported.
///
@ -32,58 +37,26 @@ pub fn call_len<'ctx, G: CodeGenerator + ?Sized>(
ctx: &mut CodeGenContext<'ctx, '_>,
n: (Type, BasicValueEnum<'ctx>),
) -> Result<IntValue<'ctx>, String> {
let llvm_i32 = ctx.ctx.i32_type();
let range_ty = ctx.primitives.range;
let (arg_ty, arg) = n;
Ok(if ctx.unifier.unioned(arg_ty, range_ty) {
Ok(if ctx.unifier.unioned(arg_ty, ctx.primitives.range) {
let arg = RangeValue::from_ptr_val(arg.into_pointer_value(), Some("range"));
let (start, end, step) = destructure_range(ctx, arg);
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::TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
let llvm_usize = generator.get_size_type(ctx.ctx);
let arg = NDArrayValue::from_ptr_val(arg.into_pointer_value(), llvm_usize, None);
let ndims = arg.dim_sizes().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.dim_sizes().get_typed_unchecked(
ctx,
generator,
&llvm_usize.const_zero(),
None,
)
};
ctx.builder.build_int_truncate_or_bit_cast(len, llvm_i32, "len").unwrap()
}
_ => unreachable!(),
}
let arg = AnyObject { ty: arg_ty, value: arg };
let len = if NDArrayObject::is_instance(ctx, arg) {
let ndarray = NDArrayObject::from_object(generator, ctx, arg);
ndarray.len(generator, ctx)
} else if TupleObject::is_instance(ctx, arg) {
let tuple = TupleObject::from_object(ctx, arg);
tuple.len(generator, ctx)
} else if ListObject::is_instance(ctx, arg) {
let list = ListObject::from_object(generator, ctx, arg);
list.len(generator, ctx)
} else {
unsupported_type(ctx, "len", &[arg_ty])
};
len.truncate(generator, ctx, Int32).value
})
}