[meta] Reorganize order of use declarations

Use declarations are now grouped into 4 groups:

- Declarations from the standard library
- Declarations from external crates
- Declarations from other crates in this project
- Declarations from within this module

Furthermore, all use declarations are grouped together to enhance
readability. super::super is also replaced by an equivalent crate::
declaration.

nac3artiq/src/codegen.rs

@@ -1,3 +1,17 @@
+use std::{
+    collections::{hash_map::DefaultHasher, HashMap},
+    hash::{Hash, Hasher},
+    iter::once,
+    mem,
+    sync::Arc,
+};
+
+use itertools::Itertools;
+use pyo3::{
+    types::{PyDict, PyList},
+    PyObject, PyResult, Python,
+};
+
 use nac3core::{
     codegen::{
         classes::{
@@ -10,38 +24,21 @@ use nac3core::{
         stmt::{gen_block, gen_for_callback_incrementing, gen_if_callback, gen_with},
         CodeGenContext, CodeGenerator,
     },
+    inkwell::{
+        context::Context,
+        module::Linkage,
+        types::{BasicType, IntType},
+        values::{BasicValueEnum, IntValue, PointerValue, StructValue},
+        AddressSpace, IntPredicate, OptimizationLevel,
+    },
+    nac3parser::ast::{Expr, ExprKind, Located, Stmt, StmtKind, StrRef},
     symbol_resolver::ValueEnum,
     toplevel::{helper::PrimDef, numpy::unpack_ndarray_var_tys, DefinitionId, GenCall},
     typecheck::typedef::{iter_type_vars, FunSignature, FuncArg, Type, TypeEnum, VarMap},
 };
 
-use nac3core::nac3parser::ast::{Expr, ExprKind, Located, Stmt, StmtKind, StrRef};
-
-use nac3core::inkwell::{
-    context::Context,
-    module::Linkage,
-    types::{BasicType, IntType},
-    values::{BasicValueEnum, PointerValue, StructValue},
-    AddressSpace, IntPredicate, OptimizationLevel,
-};
-
-use pyo3::{
-    types::{PyDict, PyList},
-    PyObject, PyResult, Python,
-};
-
 use crate::{symbol_resolver::InnerResolver, timeline::TimeFns};
 
-use itertools::Itertools;
-use nac3core::inkwell::values::IntValue;
-use std::{
-    collections::{hash_map::DefaultHasher, HashMap},
-    hash::{Hash, Hasher},
-    iter::once,
-    mem,
-    sync::Arc,
-};
-
 /// The parallelism mode within a block.
 #[derive(Copy, Clone, Eq, PartialEq)]
 enum ParallelMode {

nac3artiq/src/lib.rs

@@ -16,48 +16,53 @@
     clippy::wildcard_imports
 )]
 
-use std::collections::{HashMap, HashSet};
-use std::fs;
-use std::io::Write;
-use std::process::Command;
-use std::rc::Rc;
-use std::sync::Arc;
+use std::{
+    collections::{HashMap, HashSet},
+    fs,
+    io::Write,
+    process::Command,
+    rc::Rc,
+    sync::Arc,
+};
 
 use itertools::Itertools;
-use nac3core::codegen::{gen_func_impl, CodeGenLLVMOptions, CodeGenTargetMachineOptions};
-use nac3core::inkwell::{
-    context::Context,
-    memory_buffer::MemoryBuffer,
-    module::{Linkage, Module},
-    passes::PassBuilderOptions,
-    support::is_multithreaded,
-    targets::*,
-    OptimizationLevel,
-};
-use nac3core::toplevel::builtins::get_exn_constructor;
-use nac3core::typecheck::typedef::{into_var_map, TypeEnum, Unifier, VarMap};
-use nac3core::nac3parser::{
-    ast::{Constant, ExprKind, Located, Stmt, StmtKind, StrRef},
-    parser::parse_program,
-};
-use pyo3::create_exception;
-use pyo3::prelude::*;
-use pyo3::{exceptions, types::PyBytes, types::PyDict, types::PySet};
-
 use parking_lot::{Mutex, RwLock};
+use pyo3::{
+    create_exception, exceptions,
+    prelude::*,
+    types::{PyBytes, PyDict, PySet},
+};
+use tempfile::{self, TempDir};
 
 use nac3core::{
-    codegen::irrt::load_irrt,
-    codegen::{concrete_type::ConcreteTypeStore, CodeGenTask, WithCall, WorkerRegistry},
+    codegen::{
+        concrete_type::ConcreteTypeStore, gen_func_impl, irrt::load_irrt, CodeGenLLVMOptions,
+        CodeGenTargetMachineOptions, CodeGenTask, WithCall, WorkerRegistry,
+    },
+    inkwell::{
+        context::Context,
+        memory_buffer::MemoryBuffer,
+        module::{Linkage, Module},
+        passes::PassBuilderOptions,
+        support::is_multithreaded,
+        targets::*,
+        OptimizationLevel,
+    },
+    nac3parser::{
+        ast::{Constant, ExprKind, Located, Stmt, StmtKind, StrRef},
+        parser::parse_program,
+    },
     symbol_resolver::SymbolResolver,
     toplevel::{
+        builtins::get_exn_constructor,
         composer::{BuiltinFuncCreator, BuiltinFuncSpec, ComposerConfig, TopLevelComposer},
         DefinitionId, GenCall, TopLevelDef,
     },
-    typecheck::typedef::{FunSignature, FuncArg},
-    typecheck::{type_inferencer::PrimitiveStore, typedef::Type},
+    typecheck::{
+        type_inferencer::PrimitiveStore,
+        typedef::{into_var_map, FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
+    },
 };
-
 use nac3ld::Linker;
 
 use crate::{
@@ -65,15 +70,13 @@ use crate::{
         attributes_writeback, gen_core_log, gen_rtio_log, rpc_codegen_callback, ArtiqCodeGenerator,
     },
     symbol_resolver::{DeferredEvaluationStore, InnerResolver, PythonHelper, Resolver},
+    timeline::TimeFns,
 };
-use tempfile::{self, TempDir};
 
 mod codegen;
 mod symbol_resolver;
 mod timeline;
 
-use timeline::TimeFns;
-
 #[derive(PartialEq, Clone, Copy)]
 enum Isa {
     Host,

nac3artiq/src/symbol_resolver.rs

@@ -1,17 +1,30 @@
-use crate::PrimitivePythonId;
-use itertools::Itertools;
-use nac3core::inkwell::{
-    module::Linkage,
-    types::{BasicType, BasicTypeEnum},
-    values::BasicValueEnum,
-    AddressSpace,
+use std::{
+    collections::{HashMap, HashSet},
+    sync::{
+        atomic::{AtomicBool, Ordering::Relaxed},
+        Arc,
+    },
 };
-use nac3core::nac3parser::ast::{self, StrRef};
+
+use itertools::Itertools;
+use parking_lot::RwLock;
+use pyo3::{
+    types::{PyDict, PyTuple},
+    PyAny, PyObject, PyResult, Python,
+};
+
 use nac3core::{
     codegen::{
         classes::{NDArrayType, ProxyType},
         CodeGenContext, CodeGenerator,
     },
+    inkwell::{
+        module::Linkage,
+        types::{BasicType, BasicTypeEnum},
+        values::BasicValueEnum,
+        AddressSpace,
+    },
+    nac3parser::ast::{self, StrRef},
     symbol_resolver::{StaticValue, SymbolResolver, SymbolValue, ValueEnum},
     toplevel::{
         helper::PrimDef,
@@ -23,18 +36,8 @@ use nac3core::{
         typedef::{into_var_map, iter_type_vars, Type, TypeEnum, TypeVar, Unifier, VarMap},
     },
 };
-use parking_lot::RwLock;
-use pyo3::{
-    types::{PyDict, PyTuple},
-    PyAny, PyObject, PyResult, Python,
-};
-use std::{
-    collections::{HashMap, HashSet},
-    sync::{
-        atomic::{AtomicBool, Ordering::Relaxed},
-        Arc,
-    },
-};
+
+use crate::PrimitivePythonId;
 
 pub enum PrimitiveValue {
     I32(i32),

nac3artiq/src/timeline.rs

@@ -1,8 +1,11 @@
 use itertools::Either;
-use nac3core::codegen::CodeGenContext;
-use nac3core::inkwell::{
-    values::{BasicValueEnum, CallSiteValue},
-    AddressSpace, AtomicOrdering,
+
+use nac3core::{
+    codegen::CodeGenContext,
+    inkwell::{
+        values::{BasicValueEnum, CallSiteValue},
+        AddressSpace, AtomicOrdering,
+    },
 };
 
 /// Functions for manipulating the timeline.

nac3core/build.rs

@@ -1,4 +1,3 @@
-use regex::Regex;
 use std::{
     env,
     fs::File,
@@ -7,6 +6,8 @@ use std::{
     process::{Command, Stdio},
 };
 
+use regex::Regex;
+
 fn main() {
     let out_dir = env::var("OUT_DIR").unwrap();
     let out_dir = Path::new(&out_dir);

nac3core/src/codegen/builtin_fns.rs

@@ -1,21 +1,30 @@
-use inkwell::types::BasicTypeEnum;
-use inkwell::values::{BasicValue, BasicValueEnum, IntValue, PointerValue};
-use inkwell::{FloatPredicate, IntPredicate, OptimizationLevel};
+use inkwell::{
+    types::BasicTypeEnum,
+    values::{BasicValue, BasicValueEnum, IntValue, PointerValue},
+    FloatPredicate, IntPredicate, OptimizationLevel,
+};
 use itertools::Itertools;
 
-use crate::codegen::classes::{
-    ArrayLikeValue, NDArrayValue, ProxyValue, RangeValue, TypedArrayLikeAccessor,
-    UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
+use crate::{
+    codegen::{
+        classes::{
+            ArrayLikeValue, NDArrayValue, ProxyValue, RangeValue, TypedArrayLikeAccessor,
+            UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
+        },
+        expr::destructure_range,
+        extern_fns, irrt,
+        irrt::calculate_len_for_slice_range,
+        llvm_intrinsics,
+        macros::codegen_unreachable,
+        numpy,
+        numpy::ndarray_elementwise_unaryop_impl,
+        stmt::gen_for_callback_incrementing,
+        CodeGenContext, CodeGenerator,
+    },
+    toplevel::helper::PrimDef,
+    toplevel::numpy::unpack_ndarray_var_tys,
+    typecheck::typedef::{Type, TypeEnum},
 };
-use crate::codegen::expr::destructure_range;
-use crate::codegen::irrt::calculate_len_for_slice_range;
-use crate::codegen::macros::codegen_unreachable;
-use crate::codegen::numpy::ndarray_elementwise_unaryop_impl;
-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};
 
 /// Shorthand for [`unreachable!()`] when a type of argument is not supported.
 ///

nac3core/src/codegen/classes.rs

@@ -1,17 +1,16 @@
+use inkwell::{
+    context::Context,
+    types::{AnyTypeEnum, ArrayType, BasicType, BasicTypeEnum, IntType, PointerType, StructType},
+    values::{ArrayValue, BasicValue, BasicValueEnum, IntValue, PointerValue, StructValue},
+    AddressSpace, IntPredicate,
+};
+
 use crate::codegen::{
     irrt::{call_ndarray_calc_size, call_ndarray_flatten_index},
     llvm_intrinsics::call_int_umin,
     stmt::gen_for_callback_incrementing,
     CodeGenContext, CodeGenerator,
 };
-use inkwell::context::Context;
-use inkwell::types::{ArrayType, BasicType, StructType};
-use inkwell::values::{ArrayValue, BasicValue, StructValue};
-use inkwell::{
-    types::{AnyTypeEnum, BasicTypeEnum, IntType, PointerType},
-    values::{BasicValueEnum, IntValue, PointerValue},
-    AddressSpace, IntPredicate,
-};
 
 /// A LLVM type that is used to represent a non-primitive type in NAC3.
 pub trait ProxyType<'ctx>: Into<Self::Base> {

nac3core/src/codegen/concrete_type.rs

@@ -1,3 +1,9 @@
+use std::collections::HashMap;
+
+use indexmap::IndexMap;
+
+use nac3parser::ast::StrRef;
+
 use crate::{
     symbol_resolver::SymbolValue,
     toplevel::DefinitionId,
@@ -9,10 +15,6 @@ use crate::{
     },
 };
 
-use indexmap::IndexMap;
-use nac3parser::ast::StrRef;
-use std::collections::HashMap;
-
 pub struct ConcreteTypeStore {
     store: Vec<ConcreteTypeEnum>,
 }

nac3core/src/codegen/expr.rs

@@ -1,3 +1,23 @@
+use std::{
+    cmp::min,
+    collections::HashMap,
+    convert::TryInto,
+    iter::{once, repeat, repeat_with, zip},
+};
+
+use inkwell::{
+    attributes::{Attribute, AttributeLoc},
+    types::{AnyType, BasicType, BasicTypeEnum},
+    values::{BasicValueEnum, CallSiteValue, FunctionValue, IntValue, PointerValue, StructValue},
+    AddressSpace, IntPredicate, OptimizationLevel,
+};
+use itertools::{chain, izip, Either, Itertools};
+
+use nac3parser::ast::{
+    self, Boolop, Cmpop, Comprehension, Constant, Expr, ExprKind, Location, Operator, StrRef,
+    Unaryop,
+};
+
 use crate::{
     codegen::{
         classes::{
@@ -30,20 +50,6 @@ use crate::{
         typedef::{FunSignature, FuncArg, Type, TypeEnum, TypeVarId, Unifier, VarMap},
     },
 };
-use inkwell::{
-    attributes::{Attribute, AttributeLoc},
-    types::{AnyType, BasicType, BasicTypeEnum},
-    values::{BasicValueEnum, CallSiteValue, FunctionValue, IntValue, PointerValue, StructValue},
-    AddressSpace, IntPredicate, OptimizationLevel,
-};
-use itertools::{chain, izip, Either, Itertools};
-use nac3parser::ast::{
-    self, Boolop, Cmpop, Comprehension, Constant, Expr, ExprKind, Location, Operator, StrRef,
-    Unaryop,
-};
-use std::cmp::min;
-use std::iter::{repeat, repeat_with};
-use std::{collections::HashMap, convert::TryInto, iter::once, iter::zip};
 
 pub fn get_subst_key(
     unifier: &mut Unifier,

nac3core/src/codegen/extern_fns.rs

@@ -1,5 +1,7 @@
-use inkwell::attributes::{Attribute, AttributeLoc};
-use inkwell::values::{BasicValueEnum, CallSiteValue, FloatValue, IntValue};
+use inkwell::{
+    attributes::{Attribute, AttributeLoc},
+    values::{BasicValueEnum, CallSiteValue, FloatValue, IntValue},
+};
 use itertools::Either;
 
 use crate::codegen::CodeGenContext;

nac3core/src/codegen/generator.rs

@@ -1,15 +1,17 @@
+use inkwell::{
+    context::Context,
+    types::{BasicTypeEnum, IntType},
+    values::{BasicValueEnum, IntValue, PointerValue},
+};
+
+use nac3parser::ast::{Expr, Stmt, StrRef};
+
 use crate::{
     codegen::{bool_to_i1, bool_to_i8, classes::ArraySliceValue, expr::*, stmt::*, CodeGenContext},
     symbol_resolver::ValueEnum,
     toplevel::{DefinitionId, TopLevelDef},
     typecheck::typedef::{FunSignature, Type},
 };
-use inkwell::{
-    context::Context,
-    types::{BasicTypeEnum, IntType},
-    values::{BasicValueEnum, IntValue, PointerValue},
-};
-use nac3parser::ast::{Expr, Stmt, StrRef};
 
 pub trait CodeGenerator {
     /// Return the module name for the code generator.

nac3core/src/codegen/irrt/mod.rs

@@ -1,4 +1,15 @@
-use crate::{symbol_resolver::SymbolResolver, typecheck::typedef::Type};
+use inkwell::{
+    attributes::{Attribute, AttributeLoc},
+    context::Context,
+    memory_buffer::MemoryBuffer,
+    module::Module,
+    types::{BasicTypeEnum, IntType},
+    values::{BasicValue, BasicValueEnum, CallSiteValue, FloatValue, IntValue},
+    AddressSpace, IntPredicate,
+};
+use itertools::Either;
+
+use nac3parser::ast::Expr;
 
 use super::{
     classes::{
@@ -10,17 +21,7 @@ use super::{
     stmt::gen_for_callback_incrementing,
     CodeGenContext, CodeGenerator,
 };
-use inkwell::{
-    attributes::{Attribute, AttributeLoc},
-    context::Context,
-    memory_buffer::MemoryBuffer,
-    module::Module,
-    types::{BasicTypeEnum, IntType},
-    values::{BasicValue, BasicValueEnum, CallSiteValue, FloatValue, IntValue},
-    AddressSpace, IntPredicate,
-};
-use itertools::Either;
-use nac3parser::ast::Expr;
+use crate::{symbol_resolver::SymbolResolver, typecheck::typedef::Type};
 
 #[must_use]
 pub fn load_irrt<'ctx>(ctx: &'ctx Context, symbol_resolver: &dyn SymbolResolver) -> Module<'ctx> {

nac3core/src/codegen/llvm_intrinsics.rs

@@ -1,12 +1,14 @@
-use crate::codegen::CodeGenContext;
-use inkwell::context::Context;
-use inkwell::intrinsics::Intrinsic;
-use inkwell::types::AnyTypeEnum::IntType;
-use inkwell::types::FloatType;
-use inkwell::values::{BasicValueEnum, CallSiteValue, FloatValue, IntValue, PointerValue};
-use inkwell::AddressSpace;
+use inkwell::{
+    context::Context,
+    intrinsics::Intrinsic,
+    types::{AnyTypeEnum::IntType, FloatType},
+    values::{BasicValueEnum, CallSiteValue, FloatValue, IntValue, PointerValue},
+    AddressSpace,
+};
 use itertools::Either;
 
+use crate::codegen::CodeGenContext;
+
 /// Returns the string representation for the floating-point type `ft` when used in intrinsic
 /// functions.
 fn get_float_intrinsic_repr(ctx: &Context, ft: FloatType) -> &'static str {

nac3core/src/codegen/mod.rs

@@ -1,12 +1,12 @@
-use crate::{
-    codegen::classes::{ListType, NDArrayType, ProxyType, RangeType},
-    symbol_resolver::{StaticValue, SymbolResolver},
-    toplevel::{helper::PrimDef, numpy::unpack_ndarray_var_tys, TopLevelContext, TopLevelDef},
-    typecheck::{
-        type_inferencer::{CodeLocation, PrimitiveStore},
-        typedef::{CallId, FuncArg, Type, TypeEnum, Unifier},
+use std::{
+    collections::{HashMap, HashSet},
+    sync::{
+        atomic::{AtomicBool, Ordering},
+        Arc,
     },
+    thread,
 };
+
 use crossbeam::channel::{unbounded, Receiver, Sender};
 use inkwell::{
     attributes::{Attribute, AttributeLoc},
@@ -24,14 +24,19 @@ use inkwell::{
     AddressSpace, IntPredicate, OptimizationLevel,
 };
 use itertools::Itertools;
-use nac3parser::ast::{Location, Stmt, StrRef};
 use parking_lot::{Condvar, Mutex};
-use std::collections::{HashMap, HashSet};
-use std::sync::{
-    atomic::{AtomicBool, Ordering},
-    Arc,
+
+use nac3parser::ast::{Location, Stmt, StrRef};
+
+use crate::{
+    codegen::classes::{ListType, NDArrayType, ProxyType, RangeType},
+    symbol_resolver::{StaticValue, SymbolResolver},
+    toplevel::{helper::PrimDef, numpy::unpack_ndarray_var_tys, TopLevelContext, TopLevelDef},
+    typecheck::{
+        type_inferencer::{CodeLocation, PrimitiveStore},
+        typedef::{CallId, FuncArg, Type, TypeEnum, Unifier},
+    },
 };
-use std::thread;
 
 pub mod builtin_fns;
 pub mod classes;

nac3core/src/codegen/numpy.rs

@@ -1,3 +1,11 @@
+use inkwell::{
+    types::{AnyTypeEnum, BasicType, BasicTypeEnum, PointerType},
+    values::{BasicValue, BasicValueEnum, IntValue, PointerValue},
+    AddressSpace, IntPredicate, OptimizationLevel,
+};
+
+use nac3parser::ast::{Operator, StrRef};
+
 use crate::{
     codegen::{
         classes::{
@@ -27,16 +35,6 @@ use crate::{
         typedef::{FunSignature, Type, TypeEnum},
     },
 };
-use inkwell::{
-    types::BasicType,
-    values::{BasicValueEnum, IntValue, PointerValue},
-    AddressSpace, IntPredicate, OptimizationLevel,
-};
-use inkwell::{
-    types::{AnyTypeEnum, BasicTypeEnum, PointerType},
-    values::BasicValue,
-};
-use nac3parser::ast::{Operator, StrRef};
 
 /// Creates an uninitialized `NDArray` instance.
 fn create_ndarray_uninitialized<'ctx, G: CodeGenerator + ?Sized>(

nac3core/src/codegen/stmt.rs

@@ -1,3 +1,16 @@
+use inkwell::{
+    attributes::{Attribute, AttributeLoc},
+    basic_block::BasicBlock,
+    types::{BasicType, BasicTypeEnum},
+    values::{BasicValue, BasicValueEnum, FunctionValue, IntValue, PointerValue},
+    IntPredicate,
+};
+use itertools::{izip, Itertools};
+
+use nac3parser::ast::{
+    Constant, ExcepthandlerKind, Expr, ExprKind, Location, Stmt, StmtKind, StrRef,
+};
+
 use super::{
     classes::{ArrayLikeIndexer, ArraySliceValue, ListValue, RangeValue},
     expr::{destructure_range, gen_binop_expr},
@@ -14,17 +27,6 @@ use crate::{
         typedef::{iter_type_vars, FunSignature, Type, TypeEnum},
     },
 };
-use inkwell::{
-    attributes::{Attribute, AttributeLoc},
-    basic_block::BasicBlock,
-    types::{BasicType, BasicTypeEnum},
-    values::{BasicValue, BasicValueEnum, FunctionValue, IntValue, PointerValue},
-    IntPredicate,
-};
-use itertools::{izip, Itertools};
-use nac3parser::ast::{
-    Constant, ExcepthandlerKind, Expr, ExprKind, Location, Stmt, StmtKind, StrRef,
-};
 
 /// See [`CodeGenerator::gen_var_alloc`].
 pub fn gen_var<'ctx>(

nac3core/src/codegen/test.rs

@@ -1,3 +1,20 @@
+use std::{
+    collections::{HashMap, HashSet},
+    sync::Arc,
+};
+
+use indexmap::IndexMap;
+use indoc::indoc;
+use inkwell::{
+    targets::{InitializationConfig, Target},
+    OptimizationLevel,
+};
+use nac3parser::{
+    ast::{fold::Fold, FileName, StrRef},
+    parser::parse_program,
+};
+use parking_lot::RwLock;
+
 use crate::{
     codegen::{
         classes::{ListType, NDArrayType, ProxyType, RangeType},
@@ -15,20 +32,6 @@ use crate::{
         typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
     },
 };
-use indexmap::IndexMap;
-use indoc::indoc;
-use inkwell::{
-    targets::{InitializationConfig, Target},
-    OptimizationLevel,
-};
-use nac3parser::ast::FileName;
-use nac3parser::{
-    ast::{fold::Fold, StrRef},
-    parser::parse_program,
-};
-use parking_lot::RwLock;
-use std::collections::{HashMap, HashSet};
-use std::sync::Arc;
 
 struct Resolver {
     id_to_type: HashMap<StrRef, Type>,

nac3core/src/symbol_resolver.rs

@@ -1,7 +1,15 @@
-use std::fmt::Debug;
-use std::rc::Rc;
-use std::sync::Arc;
-use std::{collections::HashMap, collections::HashSet, fmt::Display};
+use std::{
+    collections::{HashMap, HashSet},
+    fmt::{Debug, Display},
+    rc::Rc,
+    sync::Arc,
+};
+
+use inkwell::values::{BasicValueEnum, FloatValue, IntValue, PointerValue, StructValue};
+use itertools::{chain, izip, Itertools};
+use parking_lot::RwLock;
+
+use nac3parser::ast::{Constant, Expr, Location, StrRef};
 
 use crate::{
     codegen::{CodeGenContext, CodeGenerator},
@@ -11,10 +19,6 @@ use crate::{
         typedef::{Type, TypeEnum, Unifier, VarMap},
     },
 };
-use inkwell::values::{BasicValueEnum, FloatValue, IntValue, PointerValue, StructValue};
-use itertools::{chain, izip, Itertools};
-use nac3parser::ast::{Constant, Expr, Location, StrRef};
-use parking_lot::RwLock;
 
 #[derive(Clone, PartialEq, Debug)]
 pub enum SymbolValue {

nac3core/src/toplevel/builtins.rs

@@ -1,6 +1,5 @@
 use std::iter::once;
 
-use helper::{debug_assert_prim_is_allowed, make_exception_fields, PrimDefDetails};
 use indexmap::IndexMap;
 use inkwell::{
     attributes::{Attribute, AttributeLoc},
@@ -11,6 +10,10 @@ use inkwell::{
 use itertools::Either;
 use strum::IntoEnumIterator;
 
+use super::{
+    helper::{debug_assert_prim_is_allowed, make_exception_fields, PrimDefDetails},
+    *,
+};
 use crate::{
     codegen::{
         builtin_fns,
@@ -23,8 +26,6 @@ use crate::{
     typecheck::typedef::{into_var_map, iter_type_vars, TypeVar, VarMap},
 };
 
-use super::*;
-
 type BuiltinInfo = Vec<(Arc<RwLock<TopLevelDef>>, Option<Stmt>)>;
 
 pub fn get_exn_constructor(

nac3core/src/toplevel/composer.rs

@@ -1,6 +1,8 @@
-use nac3parser::ast::fold::Fold;
 use std::rc::Rc;
 
+use nac3parser::ast::fold::Fold;
+
+use super::*;
 use crate::{
     codegen::{expr::get_subst_key, stmt::exn_constructor},
     symbol_resolver::SymbolValue,
@@ -10,8 +12,6 @@ use crate::{
     },
 };
 
-use super::*;
-
 pub struct ComposerConfig {
     pub kernel_ann: Option<&'static str>,
     pub kernel_invariant_ann: &'static str,

nac3core/src/toplevel/helper.rs

@@ -1,14 +1,17 @@
 use std::convert::TryInto;
 
-use crate::symbol_resolver::SymbolValue;
-use crate::toplevel::numpy::unpack_ndarray_var_tys;
-use crate::typecheck::typedef::{into_var_map, iter_type_vars, Mapping, TypeVarId, VarMap};
-use ast::ExprKind;
-use nac3parser::ast::{Constant, Location};
 use strum::IntoEnumIterator;
 use strum_macros::EnumIter;
 
+use ast::ExprKind;
+use nac3parser::ast::{Constant, Location};
+
 use super::*;
+use crate::{
+    symbol_resolver::SymbolValue,
+    toplevel::numpy::unpack_ndarray_var_tys,
+    typecheck::typedef::{into_var_map, iter_type_vars, Mapping, TypeVarId, VarMap},
+};
 
 /// All primitive types and functions in nac3core.
 #[derive(Clone, Copy, Debug, EnumIter, PartialEq, Eq)]

nac3core/src/toplevel/mod.rs

@@ -6,24 +6,24 @@ use std::{
     sync::Arc,
 };
 
-use super::codegen::CodeGenContext;
-use super::typecheck::type_inferencer::PrimitiveStore;
-use super::typecheck::typedef::{
-    FunSignature, FuncArg, SharedUnifier, Type, TypeEnum, Unifier, VarMap,
-};
-use crate::{
-    codegen::CodeGenerator,
-    symbol_resolver::{SymbolResolver, ValueEnum},
-    typecheck::{
-        type_inferencer::CodeLocation,
-        typedef::{CallId, TypeVarId},
-    },
-};
 use inkwell::values::BasicValueEnum;
 use itertools::Itertools;
-use nac3parser::ast::{self, Location, Stmt, StrRef};
 use parking_lot::RwLock;
 
+use nac3parser::ast::{self, Location, Stmt, StrRef};
+
+use crate::{
+    codegen::{CodeGenContext, CodeGenerator},
+    symbol_resolver::{SymbolResolver, ValueEnum},
+    typecheck::{
+        type_inferencer::{CodeLocation, PrimitiveStore},
+        typedef::{
+            CallId, FunSignature, FuncArg, SharedUnifier, Type, TypeEnum, TypeVarId, Unifier,
+            VarMap,
+        },
+    },
+};
+
 #[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Hash, Debug)]
 pub struct DefinitionId(pub usize);
 

nac3core/src/toplevel/numpy.rs

@@ -1,3 +1,5 @@
+use itertools::Itertools;
+
 use crate::{
     toplevel::helper::PrimDef,
     typecheck::{
@@ -5,7 +7,6 @@ use crate::{
         typedef::{Type, TypeEnum, TypeVarId, Unifier, VarMap},
     },
 };
-use itertools::Itertools;
 
 /// Creates a `ndarray` [`Type`] with the given type arguments.
 ///

nac3core/src/toplevel/test.rs

@@ -1,21 +1,24 @@
+use std::{collections::HashMap, sync::Arc};
+
+use indoc::indoc;
+use parking_lot::Mutex;
+use test_case::test_case;
+
+use nac3parser::{
+    ast::{fold::Fold, FileName},
+    parser::parse_program,
+};
+
 use super::*;
-use crate::toplevel::helper::PrimDef;
-use crate::typecheck::typedef::into_var_map;
 use crate::{
     codegen::CodeGenContext,
     symbol_resolver::{SymbolResolver, ValueEnum},
-    toplevel::DefinitionId,
+    toplevel::{helper::PrimDef, DefinitionId},
     typecheck::{
         type_inferencer::PrimitiveStore,
-        typedef::{Type, Unifier},
+        typedef::{into_var_map, Type, Unifier},
     },
 };
-use indoc::indoc;
-use nac3parser::ast::FileName;
-use nac3parser::{ast::fold::Fold, parser::parse_program};
-use parking_lot::Mutex;
-use std::{collections::HashMap, sync::Arc};
-use test_case::test_case;
 
 struct ResolverInternal {
     id_to_type: Mutex<HashMap<StrRef, Type>>,

nac3core/src/toplevel/type_annotation.rs

@@ -1,10 +1,14 @@
-use super::*;
-use crate::symbol_resolver::SymbolValue;
-use crate::toplevel::helper::{PrimDef, PrimDefDetails};
-use crate::typecheck::typedef::VarMap;
-use nac3parser::ast::Constant;
 use strum::IntoEnumIterator;
 
+use nac3parser::ast::Constant;
+
+use super::*;
+use crate::{
+    symbol_resolver::SymbolValue,
+    toplevel::helper::{PrimDef, PrimDefDetails},
+    typecheck::typedef::VarMap,
+};
+
 #[derive(Clone, Debug)]
 pub enum TypeAnnotation {
     Primitive(Type),

nac3core/src/typecheck/function_check.rs

@@ -1,13 +1,16 @@
-use crate::toplevel::helper::PrimDef;
+use std::{collections::HashSet, iter::once};
 
-use super::type_inferencer::Inferencer;
-use super::typedef::{Type, TypeEnum};
 use nac3parser::ast::{
     self, Constant, Expr, ExprKind,
     Operator::{LShift, RShift},
     Stmt, StmtKind, StrRef,
 };
-use std::{collections::HashSet, iter::once};
+
+use super::{
+    type_inferencer::Inferencer,
+    typedef::{Type, TypeEnum},
+};
+use crate::toplevel::helper::PrimDef;
 
 impl<'a> Inferencer<'a> {
     fn should_have_value(&mut self, expr: &Expr<Option<Type>>) -> Result<(), HashSet<String>> {

nac3core/src/typecheck/magic_methods.rs

@@ -1,18 +1,22 @@
-use crate::symbol_resolver::SymbolValue;
-use crate::toplevel::helper::PrimDef;
-use crate::toplevel::numpy::{make_ndarray_ty, unpack_ndarray_var_tys};
-use crate::typecheck::{
-    type_inferencer::*,
-    typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
-};
+use std::{cmp::max, collections::HashMap, rc::Rc};
+
 use itertools::{iproduct, Itertools};
-use nac3parser::ast::StrRef;
-use nac3parser::ast::{Cmpop, Operator, Unaryop};
-use std::cmp::max;
-use std::collections::HashMap;
-use std::rc::Rc;
 use strum::IntoEnumIterator;
 
+use nac3parser::ast::{Cmpop, Operator, StrRef, Unaryop};
+
+use crate::{
+    symbol_resolver::SymbolValue,
+    toplevel::{
+        helper::PrimDef,
+        numpy::{make_ndarray_ty, unpack_ndarray_var_tys},
+    },
+    typecheck::{
+        type_inferencer::*,
+        typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
+    },
+};
+
 /// The variant of a binary operator.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum BinopVariant {

nac3core/src/typecheck/type_error.rs

@@ -1,14 +1,14 @@
-use std::collections::HashMap;
-use std::fmt::Display;
+use std::{collections::HashMap, fmt::Display};
 
-use crate::typecheck::{magic_methods::HasOpInfo, typedef::TypeEnum};
+use itertools::Itertools;
+
+use nac3parser::ast::{Cmpop, Location, StrRef};
 
 use super::{
     magic_methods::Binop,
     typedef::{RecordKey, Type, Unifier},
 };
-use itertools::Itertools;
-use nac3parser::ast::{Cmpop, Location, StrRef};
+use crate::typecheck::{magic_methods::HasOpInfo, typedef::TypeEnum};
 
 #[derive(Debug, Clone)]
 pub enum TypeErrorKind {

nac3core/src/typecheck/type_inferencer/mod.rs

@@ -1,32 +1,36 @@
-use std::cmp::max;
-use std::collections::{HashMap, HashSet};
-use std::convert::{From, TryInto};
-use std::iter::once;
-use std::{cell::RefCell, sync::Arc};
+use std::{
+    cell::RefCell,
+    cmp::max,
+    collections::{HashMap, HashSet},
+    convert::{From, TryInto},
+    iter::once,
+    sync::Arc,
+};
+
+use itertools::{izip, Itertools};
+
+use nac3parser::ast::{
+    self,
+    fold::{self, Fold},
+    Arguments, Comprehension, ExprContext, ExprKind, Located, Location, StrRef,
+};
 
 use super::{
     magic_methods::*,
     type_error::{TypeError, TypeErrorKind},
     typedef::{
-        into_var_map, iter_type_vars, Call, CallId, FunSignature, FuncArg, OperatorInfo,
+        into_var_map, iter_type_vars, Call, CallId, FunSignature, FuncArg, Mapping, OperatorInfo,
         RecordField, RecordKey, Type, TypeEnum, TypeVar, Unifier, VarMap,
     },
 };
-use crate::toplevel::type_annotation::TypeAnnotation;
 use crate::{
     symbol_resolver::{SymbolResolver, SymbolValue},
     toplevel::{
         helper::{arraylike_flatten_element_type, arraylike_get_ndims, PrimDef},
         numpy::{make_ndarray_ty, unpack_ndarray_var_tys},
+        type_annotation::TypeAnnotation,
         TopLevelContext, TopLevelDef,
     },
-    typecheck::typedef::Mapping,
-};
-use itertools::{izip, Itertools};
-use nac3parser::ast::{
-    self,
-    fold::{self, Fold},
-    Arguments, Comprehension, ExprContext, ExprKind, Located, Location, StrRef,
 };
 
 #[cfg(test)]

nac3core/src/typecheck/type_inferencer/test.rs

@@ -1,17 +1,19 @@
-use super::super::{magic_methods::with_fields, typedef::*};
+use std::iter::zip;
+
+use indexmap::IndexMap;
+use indoc::indoc;
+use parking_lot::RwLock;
+use test_case::test_case;
+
+use nac3parser::{ast::FileName, parser::parse_program};
+
 use super::*;
 use crate::{
     codegen::CodeGenContext,
     symbol_resolver::ValueEnum,
     toplevel::{helper::PrimDef, DefinitionId, TopLevelDef},
+    typecheck::{magic_methods::with_fields, typedef::*},
 };
-use indexmap::IndexMap;
-use indoc::indoc;
-use nac3parser::ast::FileName;
-use nac3parser::parser::parse_program;
-use parking_lot::RwLock;
-use std::iter::zip;
-use test_case::test_case;
 
 struct Resolver {
     id_to_type: HashMap<StrRef, Type>,

nac3core/src/typecheck/typedef/mod.rs

@@ -1,21 +1,28 @@
-use super::magic_methods::{Binop, HasOpInfo};
-use super::type_error::{TypeError, TypeErrorKind};
-use super::unification_table::{UnificationKey, UnificationTable};
-use crate::symbol_resolver::SymbolValue;
-use crate::toplevel::helper::PrimDef;
-use crate::toplevel::{DefinitionId, TopLevelContext, TopLevelDef};
-use crate::typecheck::magic_methods::OpInfo;
-use crate::typecheck::type_inferencer::PrimitiveStore;
+use std::{
+    borrow::Cow,
+    cell::RefCell,
+    collections::{HashMap, HashSet},
+    fmt::{self, Display},
+    iter::{repeat, zip},
+    rc::Rc,
+    sync::{Arc, Mutex},
+};
+
 use indexmap::IndexMap;
 use itertools::{repeat_n, Itertools};
+
 use nac3parser::ast::{Cmpop, Location, StrRef, Unaryop};
-use std::cell::RefCell;
-use std::collections::HashMap;
-use std::fmt::{self, Display};
-use std::iter::{repeat, zip};
-use std::rc::Rc;
-use std::sync::{Arc, Mutex};
-use std::{borrow::Cow, collections::HashSet};
+
+use super::{
+    magic_methods::{Binop, HasOpInfo},
+    type_error::{TypeError, TypeErrorKind},
+    unification_table::{UnificationKey, UnificationTable},
+};
+use crate::{
+    symbol_resolver::SymbolValue,
+    toplevel::{helper::PrimDef, DefinitionId, TopLevelContext, TopLevelDef},
+    typecheck::{magic_methods::OpInfo, type_inferencer::PrimitiveStore},
+};
 
 #[cfg(test)]
 mod test;

nac3core/src/typecheck/typedef/test.rs

@@ -1,10 +1,12 @@
-use super::super::magic_methods::with_fields;
-use super::*;
+use std::collections::HashMap;
+
 use indoc::indoc;
 use itertools::Itertools;
-use std::collections::HashMap;
 use test_case::test_case;
 
+use super::*;
+use crate::typecheck::magic_methods::with_fields;
+
 impl Unifier {
     /// Check whether two types are equal.
     fn eq(&mut self, a: Type, b: Type) -> bool {

nac3ld/src/lib.rs

@@ -21,13 +21,12 @@
     clippy::wildcard_imports
 )]
 
+use std::{collections::HashMap, mem, ptr, slice, str};
+
+use byteorder::{ByteOrder, LittleEndian};
+
 use dwarf::*;
 use elf::*;
-use std::collections::HashMap;
-use std::{mem, ptr, slice, str};
-
-extern crate byteorder;
-use byteorder::{ByteOrder, LittleEndian};
 
 mod dwarf;
 mod elf;

nac3parser/src/config_comment_helper.rs

@@ -1,8 +1,10 @@
-use crate::ast::Ident;
-use crate::ast::Location;
-use crate::error::*;
-use crate::token::Tok;
+use crate::{
+    ast::{Ident, Location},
+    error::*,
+    token::Tok,
+};
 use lalrpop_util::ParseError;
+
 use nac3ast::*;
 
 pub fn make_config_comment(

nac3parser/src/error.rs

@@ -1,13 +1,12 @@
 //! Define internal parse error types
 //! The goal is to provide a matching and a safe error API, maksing errors from LALR
-use lalrpop_util::ParseError as LalrpopError;
-
-use crate::ast::Location;
-use crate::token::Tok;
-
 use std::error::Error;
 use std::fmt;
 
+use lalrpop_util::ParseError as LalrpopError;
+
+use crate::{ast::Location, token::Tok};
+
 /// Represents an error during lexical scanning.
 #[derive(Debug, PartialEq)]
 pub struct LexicalError {

nac3parser/src/fstring.rs

@@ -1,12 +1,11 @@
-use std::iter;
-use std::mem;
-use std::str;
-
-use crate::ast::{Constant, ConversionFlag, Expr, ExprKind, Location};
-use crate::error::{FStringError, FStringErrorType, ParseError};
-use crate::parser::parse_expression;
+use std::{iter, mem, str};
 
 use self::FStringErrorType::*;
+use crate::{
+    ast::{Constant, ConversionFlag, Expr, ExprKind, Location},
+    error::{FStringError, FStringErrorType, ParseError},
+    parser::parse_expression,
+};
 
 struct FStringParser<'a> {
     chars: iter::Peekable<str::Chars<'a>>,

nac3parser/src/function.rs

@@ -1,8 +1,11 @@
-use ahash::RandomState;
 use std::collections::HashSet;
 
-use crate::ast;
-use crate::error::{LexicalError, LexicalErrorType};
+use ahash::RandomState;
+
+use crate::{
+    ast,
+    error::{LexicalError, LexicalErrorType},
+};
 
 pub struct ArgumentList {
     pub args: Vec<ast::Expr>,

nac3parser/src/lexer.rs

@@ -1,17 +1,17 @@
 //! This module takes care of lexing python source text.
 //!
 //! This means source code is translated into separate tokens.
+use std::{char, cmp::Ordering, num::IntErrorKind, str::FromStr};
 
-pub use super::token::Tok;
-use crate::ast::{FileName, Location};
-use crate::error::{LexicalError, LexicalErrorType};
-use std::char;
-use std::cmp::Ordering;
-use std::num::IntErrorKind;
-use std::str::FromStr;
 use unic_emoji_char::is_emoji_presentation;
 use unic_ucd_ident::{is_xid_continue, is_xid_start};
 
+pub use super::token::Tok;
+use crate::{
+    ast::{FileName, Location},
+    error::{LexicalError, LexicalErrorType},
+};
+
 #[derive(Clone, Copy, PartialEq, Debug, Default)]
 struct IndentationLevel {
     tabs: usize,

nac3parser/src/parser.rs

@@ -5,14 +5,16 @@
 //! parse a whole program, a single statement, or a single
 //! expression.
 
-use nac3ast::Location;
 use std::iter;
 
-use crate::ast::{self, FileName};
-use crate::error::ParseError;
-use crate::lexer;
+use nac3ast::Location;
+
 pub use crate::mode::Mode;
-use crate::python;
+use crate::{
+    ast::{self, FileName},
+    error::ParseError,
+    lexer, python,
+};
 
 /*
  * Parse python code.

nac3parser/src/token.rs

@@ -1,8 +1,9 @@
 //! Different token definitions.
 //! Loosely based on token.h from CPython source:
-use crate::ast;
 use std::fmt::{self, Write};
 
+use crate::ast;
+
 /// Python source code can be tokenized in a sequence of these tokens.
 #[derive(Clone, Debug, PartialEq)]
 pub enum Tok {

nac3standalone/src/basic_symbol_resolver.rs

@@ -1,6 +1,13 @@
-use nac3core::nac3parser::ast::{self, StrRef};
+use std::{
+    collections::{HashMap, HashSet},
+    sync::Arc,
+};
+
+use parking_lot::{Mutex, RwLock};
+
 use nac3core::{
     codegen::CodeGenContext,
+    nac3parser::ast::{self, StrRef},
     symbol_resolver::{SymbolResolver, SymbolValue, ValueEnum},
     toplevel::{DefinitionId, TopLevelDef},
     typecheck::{
@@ -8,9 +15,6 @@ use nac3core::{
         typedef::{Type, Unifier},
     },
 };
-use parking_lot::{Mutex, RwLock};
-use std::collections::HashSet;
-use std::{collections::HashMap, sync::Arc};
 
 pub struct ResolverInternal {
     pub id_to_type: Mutex<HashMap<StrRef, Type>>,

nac3standalone/src/main.rs

@@ -8,20 +8,30 @@
 #![warn(clippy::pedantic)]
 #![allow(clippy::too_many_lines, clippy::wildcard_imports)]
 
+use std::{
+    collections::{HashMap, HashSet},
+    fs,
+    num::NonZeroUsize,
+    path::Path,
+    sync::Arc,
+};
+
 use clap::Parser;
-use nac3core::inkwell::{
-    memory_buffer::MemoryBuffer, module::Linkage, passes::PassBuilderOptions,
-    support::is_multithreaded, targets::*, OptimizationLevel,
-};
-use nac3core::nac3parser::{
-    ast::{Constant, Expr, ExprKind, StmtKind, StrRef},
-    parser,
-};
+use parking_lot::{Mutex, RwLock};
+
 use nac3core::{
     codegen::{
         concrete_type::ConcreteTypeStore, irrt::load_irrt, CodeGenLLVMOptions,
         CodeGenTargetMachineOptions, CodeGenTask, DefaultCodeGenerator, WithCall, WorkerRegistry,
     },
+    inkwell::{
+        memory_buffer::MemoryBuffer, module::Linkage, passes::PassBuilderOptions,
+        support::is_multithreaded, targets::*, OptimizationLevel,
+    },
+    nac3parser::{
+        ast::{Constant, Expr, ExprKind, StmtKind, StrRef},
+        parser,
+    },
     symbol_resolver::SymbolResolver,
     toplevel::{
         composer::{ComposerConfig, TopLevelComposer},
@@ -34,10 +44,6 @@ use nac3core::{
         typedef::{FunSignature, Type, Unifier, VarMap},
     },
 };
-use parking_lot::{Mutex, RwLock};
-use std::collections::HashSet;
-use std::num::NonZeroUsize;
-use std::{collections::HashMap, fs, path::Path, sync::Arc};
 
 mod basic_symbol_resolver;
 use basic_symbol_resolver::*;