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nac3core: add len support for list and range

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This commit is contained in:
ychenfo 2021-12-09 01:14:28 +08:00
parent 01d3249646
commit b7892ce952
1 changed files with 74 additions and 3 deletions
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77
nac3core/src/toplevel/builtins.rs
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@ -1,6 +1,6 @@
use std::cell::RefCell;
use inkwell::{IntPredicate, FloatPredicate};
use crate::symbol_resolver::SymbolValue;
use inkwell::{IntPredicate, FloatPredicate, values::BasicValueEnum};
use crate::{symbol_resolver::SymbolValue, codegen::expr::destructure_range};
use super::*;
type BuiltinInfo = (
@ -557,6 +557,76 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
)
})))),
})),
Arc::new(RwLock::new({
let list_var = primitives.1.get_fresh_var();
let list = primitives.1.add_ty(TypeEnum::TList { ty: list_var.0 });
let arg_ty = primitives.1.get_fresh_var_with_range(&[list, primitives.0.range]);
TopLevelDef::Function {
name: "len".into(),
simple_name: "len".into(),
signature: primitives.1.add_ty(TypeEnum::TFunc(RefCell::new(FunSignature {
args: vec![FuncArg {
name: "_".into(),
ty: arg_ty.0,
default_value: None
}],
ret: int32,
vars: vec![(list_var.1, list_var.0), (arg_ty.1, arg_ty.0)].into_iter().collect(),
}))),
var_id: Default::default(),
instance_to_symbol: Default::default(),
instance_to_stmt: Default::default(),
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args| {
let range_ty = ctx.primitives.range;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1;
let int32 = ctx.ctx.i32_type();
let zero = int32.const_zero();
if ctx.unifier.unioned(arg_ty, range_ty) {
let int1 = ctx.ctx.bool_type();
let one = int32.const_int(1, false);
let falze = int1.const_int(0, false);
let abs_intrinsic =
ctx.module.get_function("llvm.abs.i32").unwrap_or_else(|| {
let fn_type = int32.fn_type(&[int32.into(), int1.into()], false);
ctx.module.add_function("llvm.abs.i32", fn_type, None)
});
let arg = arg.into_pointer_value();
let (start, end, step) = destructure_range(ctx, arg);
let diff = ctx.builder.build_int_sub(end, start, "diff");
let diff = if let BasicValueEnum::IntValue(val) = ctx
.builder
.build_call(abs_intrinsic, &[diff.into(), falze.into()], "absdiff")
.try_as_basic_value()
.left()
.unwrap() {
val
} else {
unreachable!();
};
let diff = ctx.builder.build_int_sub(diff, one, "diff");
let step = if let BasicValueEnum::IntValue(val) = ctx
.builder
.build_call(abs_intrinsic, &[step.into(), falze.into()], "absstep")
.try_as_basic_value()
.left()
.unwrap() {
val
} else {
unreachable!();
};
let length = ctx.builder.build_int_signed_div(diff, step, "div");
let length = ctx.builder.build_int_add(length, int32.const_int(1, false), "add1");
Some(length.into())
} else {
Some(ctx.build_gep_and_load(arg.into_pointer_value(), &[zero, zero]))
}
},
)))),
}
}))
];
let ast_list: Vec<Option<ast::Stmt<()>>> =
(0..top_level_def_list.len()).map(|_| None).collect();
@ -574,7 +644,8 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
"floor",
"floor64",
"ceil",
"ceil64"
"ceil64",
"len",
]
)
}