Upgrade to 2018 edition (#1769)

Author: emilio

Cargo.toml

@@ -15,6 +15,7 @@ repository = "https://github.com/rust-lang/rust-bindgen"
 documentation = "https://docs.rs/bindgen"
 homepage = "https://rust-lang.github.io/rust-bindgen/"
 version = "0.53.2"
+edition = "2018"
 build = "build.rs"
 
 include = [

src/callbacks.rs

@@ -1,7 +1,7 @@
 //! A public API for more fine-grained customization of bindgen behavior.
 
-pub use ir::enum_ty::{EnumVariantCustomBehavior, EnumVariantValue};
-pub use ir::int::IntKind;
+pub use crate::ir::enum_ty::{EnumVariantCustomBehavior, EnumVariantValue};
+pub use crate::ir::int::IntKind;
 use std::fmt;
 use std::panic::UnwindSafe;
 

src/clang.rs

@@ -4,9 +4,9 @@
 #![allow(non_upper_case_globals, dead_code)]
 
 
+use crate::ir::context::BindgenContext;
 use cexpr;
 use clang_sys::*;
-use ir::context::BindgenContext;
 use regex;
 use std::ffi::{CStr, CString};
 use std::fmt;
@@ -1085,8 +1085,8 @@ impl Type {
     pub fn fallible_layout(
         &self,
         ctx: &BindgenContext,
-    ) -> Result<::ir::layout::Layout, LayoutError> {
-        use ir::layout::Layout;
+    ) -> Result<crate::ir::layout::Layout, LayoutError> {
+        use crate::ir::layout::Layout;
         let size = self.fallible_size(ctx)?;
         let align = self.fallible_align(ctx)?;
         Ok(Layout::new(size, align))

src/codegen/helpers.rs

@@ -1,7 +1,7 @@
 //! Helpers for code generation that don't need macro expansion.
 
-use ir::context::BindgenContext;
-use ir::layout::Layout;
+use crate::ir::context::BindgenContext;
+use crate::ir::layout::Layout;
 use proc_macro2::{Ident, Span, TokenStream};
 use quote::TokenStreamExt;
 
@@ -136,10 +136,10 @@ pub fn bitfield_unit(ctx: &BindgenContext, layout: Layout) -> TokenStream {
 }
 
 pub mod ast_ty {
-    use ir::context::BindgenContext;
-    use ir::function::FunctionSig;
-    use ir::layout::Layout;
-    use ir::ty::FloatKind;
+    use crate::ir::context::BindgenContext;
+    use crate::ir::function::FunctionSig;
+    use crate::ir::layout::Layout;
+    use crate::ir::ty::FloatKind;
     use proc_macro2::{self, TokenStream};
     use std::str::FromStr;
 

src/codegen/impl_debug.rs

@@ -1,7 +1,7 @@
-use ir::comp::{BitfieldUnit, CompKind, Field, FieldData, FieldMethods};
-use ir::context::BindgenContext;
-use ir::item::{HasTypeParamInArray, IsOpaque, Item, ItemCanonicalName};
-use ir::ty::{TypeKind, RUST_DERIVE_IN_ARRAY_LIMIT};
+use crate::ir::comp::{BitfieldUnit, CompKind, Field, FieldData, FieldMethods};
+use crate::ir::context::BindgenContext;
+use crate::ir::item::{HasTypeParamInArray, IsOpaque, Item, ItemCanonicalName};
+use crate::ir::ty::{TypeKind, RUST_DERIVE_IN_ARRAY_LIMIT};
 use proc_macro2;
 
 pub fn gen_debug_impl(

src/codegen/impl_partialeq.rs

@@ -1,7 +1,7 @@
-use ir::comp::{CompInfo, CompKind, Field, FieldMethods};
-use ir::context::BindgenContext;
-use ir::item::{IsOpaque, Item};
-use ir::ty::{TypeKind, RUST_DERIVE_IN_ARRAY_LIMIT};
+use crate::ir::comp::{CompInfo, CompKind, Field, FieldMethods};
+use crate::ir::context::BindgenContext;
+use crate::ir::item::{IsOpaque, Item};
+use crate::ir::ty::{TypeKind, RUST_DERIVE_IN_ARRAY_LIMIT};
 use proc_macro2;
 
 /// Generate a manual implementation of `PartialEq` trait for the

src/codegen/mod.rs

@@ -15,36 +15,37 @@ use self::struct_layout::StructLayoutTracker;
 
 use super::BindgenOptions;
 
-use ir::analysis::{HasVtable, Sizedness};
-use ir::annotations::FieldAccessorKind;
-use ir::comment;
-use ir::comp::{
+use crate::ir::analysis::{HasVtable, Sizedness};
+use crate::ir::annotations::FieldAccessorKind;
+use crate::ir::comment;
+use crate::ir::comp::{
     Base, Bitfield, BitfieldUnit, CompInfo, CompKind, Field, FieldData,
     FieldMethods, Method, MethodKind,
 };
-use ir::context::{BindgenContext, ItemId};
-use ir::derive::{
+use crate::ir::context::{BindgenContext, ItemId};
+use crate::ir::derive::{
     CanDerive, CanDeriveCopy, CanDeriveDebug, CanDeriveDefault, CanDeriveEq,
     CanDeriveHash, CanDeriveOrd, CanDerivePartialEq, CanDerivePartialOrd,
 };
-use ir::dot;
-use ir::enum_ty::{Enum, EnumVariant, EnumVariantValue};
-use ir::function::{Abi, Function, FunctionKind, FunctionSig, Linkage};
-use ir::int::IntKind;
-use ir::item::{IsOpaque, Item, ItemCanonicalName, ItemCanonicalPath};
-use ir::item_kind::ItemKind;
-use ir::layout::Layout;
-use ir::module::Module;
-use ir::objc::{ObjCInterface, ObjCMethod};
-use ir::template::{
+use crate::ir::dot;
+use crate::ir::enum_ty::{Enum, EnumVariant, EnumVariantValue};
+use crate::ir::function::{Abi, Function, FunctionKind, FunctionSig, Linkage};
+use crate::ir::int::IntKind;
+use crate::ir::item::{IsOpaque, Item, ItemCanonicalName, ItemCanonicalPath};
+use crate::ir::item_kind::ItemKind;
+use crate::ir::layout::Layout;
+use crate::ir::module::Module;
+use crate::ir::objc::{ObjCInterface, ObjCMethod};
+use crate::ir::template::{
     AsTemplateParam, TemplateInstantiation, TemplateParameters,
 };
-use ir::ty::{Type, TypeKind};
-use ir::var::Var;
+use crate::ir::ty::{Type, TypeKind};
+use crate::ir::var::Var;
 
 use proc_macro2::{self, Ident, Span};
 use quote::TokenStreamExt;
 
+use crate::{Entry, HashMap, HashSet};
 use std;
 use std::borrow::Cow;
 use std::cell::Cell;
@@ -53,7 +54,6 @@ use std::fmt::Write;
 use std::iter;
 use std::ops;
 use std::str::FromStr;
-use {Entry, HashMap, HashSet};
 
 // Name of type defined in constified enum module
 pub static CONSTIFIED_ENUM_MODULE_REPR_NAME: &'static str = "Type";
@@ -483,7 +483,7 @@ impl CodeGenerator for Var {
         result: &mut CodegenResult<'a>,
         item: &Item,
     ) {
-        use ir::var::VarType;
+        use crate::ir::var::VarType;
         debug!("<Var as CodeGenerator>::codegen: item = {:?}", item);
         debug_assert!(item.is_enabled_for_codegen(ctx));
 
@@ -1310,7 +1310,7 @@ impl<'a> FieldCodegen<'a> for BitfieldUnit {
         F: Extend<proc_macro2::TokenStream>,
         M: Extend<proc_macro2::TokenStream>,
     {
-        use ir::ty::RUST_DERIVE_IN_ARRAY_LIMIT;
+        use crate::ir::ty::RUST_DERIVE_IN_ARRAY_LIMIT;
 
         result.saw_bitfield_unit();
 
@@ -3855,10 +3855,10 @@ pub(crate) fn codegen(
 
 mod utils {
     use super::{error, ToRustTyOrOpaque};
-    use ir::context::BindgenContext;
-    use ir::function::{Abi, FunctionSig};
-    use ir::item::{Item, ItemCanonicalPath};
-    use ir::ty::TypeKind;
+    use crate::ir::context::BindgenContext;
+    use crate::ir::function::{Abi, FunctionSig};
+    use crate::ir::item::{Item, ItemCanonicalPath};
+    use crate::ir::ty::TypeKind;
     use proc_macro2;
     use std::borrow::Cow;
     use std::mem;

src/codegen/struct_layout.rs

@@ -2,10 +2,10 @@
 
 use super::helpers;
 
-use ir::comp::CompInfo;
-use ir::context::BindgenContext;
-use ir::layout::Layout;
-use ir::ty::{Type, TypeKind};
+use crate::ir::comp::CompInfo;
+use crate::ir::context::BindgenContext;
+use crate::ir::layout::Layout;
+use crate::ir::ty::{Type, TypeKind};
 use proc_macro2::{self, Ident, Span};
 use std::cmp;
 

src/ir/analysis/derive.rs

@@ -3,17 +3,17 @@
 use std::fmt;
 
 use super::{generate_dependencies, ConstrainResult, MonotoneFramework};
-use ir::analysis::has_vtable::HasVtable;
-use ir::comp::CompKind;
-use ir::context::{BindgenContext, ItemId};
-use ir::derive::CanDerive;
-use ir::function::FunctionSig;
-use ir::item::{IsOpaque, Item};
-use ir::template::TemplateParameters;
-use ir::traversal::{EdgeKind, Trace};
-use ir::ty::RUST_DERIVE_IN_ARRAY_LIMIT;
-use ir::ty::{Type, TypeKind};
-use {Entry, HashMap, HashSet};
+use crate::ir::analysis::has_vtable::HasVtable;
+use crate::ir::comp::CompKind;
+use crate::ir::context::{BindgenContext, ItemId};
+use crate::ir::derive::CanDerive;
+use crate::ir::function::FunctionSig;
+use crate::ir::item::{IsOpaque, Item};
+use crate::ir::template::TemplateParameters;
+use crate::ir::traversal::{EdgeKind, Trace};
+use crate::ir::ty::RUST_DERIVE_IN_ARRAY_LIMIT;
+use crate::ir::ty::{Type, TypeKind};
+use crate::{Entry, HashMap, HashSet};
 
 /// Which trait to consider when doing the `CannotDerive` analysis.
 #[derive(Debug, Copy, Clone)]

src/ir/analysis/has_destructor.rs

@@ -1,11 +1,11 @@
 //! Determining which types have destructors
 
 use super::{generate_dependencies, ConstrainResult, MonotoneFramework};
-use ir::comp::{CompKind, Field, FieldMethods};
-use ir::context::{BindgenContext, ItemId};
-use ir::traversal::EdgeKind;
-use ir::ty::TypeKind;
-use {HashMap, HashSet};
+use crate::ir::comp::{CompKind, Field, FieldMethods};
+use crate::ir::context::{BindgenContext, ItemId};
+use crate::ir::traversal::EdgeKind;
+use crate::ir::ty::TypeKind;
+use crate::{HashMap, HashSet};
 
 /// An analysis that finds for each IR item whether it has a destructor or not
 ///