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Check if bitflags deps pulls its weight

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Bitflags is generally a good dependency -- it's lightweight, well
maintained and embraced by the ecosystem.

I wonder, however, do we really need it? Doesn't feel like it adds much
to be honest.
This commit is contained in:
Aleksey Kladov 2021-04-04 12:06:01 +03:00
parent c9bcbf9a43
commit d1474ae518
5 changed files with 33 additions and 34 deletions
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1
Cargo.lock generated
View File

@ -498,7 +498,6 @@ version = "0.0.0"
dependencies = [
"anymap",
"base_db",
"bitflags",
"cfg",
"cov-mark",
"dashmap",

1
crates/hir_def/Cargo.toml
View File

@ -10,7 +10,6 @@ edition = "2018"
doctest = false
[dependencies]
bitflags = "1.2.1"
cov-mark = { version = "1.1", features = ["thread-local"] }
dashmap = { version = "4.0.2", features = ["raw-api"] }
log = "0.4.8"

18
crates/hir_def/src/data.rs
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@ -50,7 +50,7 @@ impl FunctionData {
let mut flags = func.flags;
if is_varargs {
flags |= FnFlags::IS_VARARGS;
flags.bits |= FnFlags::IS_VARARGS;
}
Arc::new(FunctionData {
@ -71,37 +71,37 @@ impl FunctionData {
}
pub fn has_body(&self) -> bool {
self.flags.contains(FnFlags::HAS_BODY)
self.flags.bits & FnFlags::HAS_BODY != 0
}
/// True if the first param is `self`. This is relevant to decide whether this
/// can be called as a method.
pub fn has_self_param(&self) -> bool {
self.flags.contains(FnFlags::HAS_SELF_PARAM)
self.flags.bits & FnFlags::HAS_SELF_PARAM != 0
}
pub fn is_default(&self) -> bool {
self.flags.contains(FnFlags::IS_DEFAULT)
self.flags.bits & FnFlags::IS_DEFAULT != 0
}
pub fn is_const(&self) -> bool {
self.flags.contains(FnFlags::IS_CONST)
self.flags.bits & FnFlags::IS_CONST != 0
}
pub fn is_async(&self) -> bool {
self.flags.contains(FnFlags::IS_ASYNC)
self.flags.bits & FnFlags::IS_ASYNC != 0
}
pub fn is_unsafe(&self) -> bool {
self.flags.contains(FnFlags::IS_UNSAFE)
self.flags.bits & FnFlags::IS_UNSAFE != 0
}
pub fn is_in_extern_block(&self) -> bool {
self.flags.contains(FnFlags::IS_IN_EXTERN_BLOCK)
self.flags.bits & FnFlags::IS_IN_EXTERN_BLOCK != 0
}
pub fn is_varargs(&self) -> bool {
self.flags.contains(FnFlags::IS_VARARGS)
self.flags.bits & FnFlags::IS_VARARGS != 0
}
}

29
crates/hir_def/src/item_tree.rs
View File

@ -569,20 +569,21 @@ pub enum Param {
Varargs,
}
bitflags::bitflags! {
/// NOTE: Shared with `FunctionData`
pub(crate) struct FnFlags: u8 {
const HAS_SELF_PARAM = 1 << 0;
const HAS_BODY = 1 << 1;
const IS_DEFAULT = 1 << 2;
const IS_CONST = 1 << 3;
const IS_ASYNC = 1 << 4;
const IS_UNSAFE = 1 << 5;
/// Whether the function is located in an `extern` block (*not* whether it is an
/// `extern "abi" fn`).
const IS_IN_EXTERN_BLOCK = 1 << 6;
const IS_VARARGS = 1 << 7;
}
#[derive(Debug, Clone, Copy, Eq, PartialEq, Default)]
pub(crate) struct FnFlags {
pub(crate) bits: u8,
}
impl FnFlags {
pub(crate) const HAS_SELF_PARAM: u8 = 1 << 0;
pub(crate) const HAS_BODY: u8 = 1 << 1;
pub(crate) const IS_DEFAULT: u8 = 1 << 2;
pub(crate) const IS_CONST: u8 = 1 << 3;
pub(crate) const IS_ASYNC: u8 = 1 << 4;
pub(crate) const IS_UNSAFE: u8 = 1 << 5;
/// Whether the function is located in an `extern` block (*not* whether it is an
/// `extern "abi" fn`).
pub(crate) const IS_IN_EXTERN_BLOCK: u8 = 1 << 6;
pub(crate) const IS_VARARGS: u8 = 1 << 7;
}
#[derive(Debug, Clone, Eq, PartialEq)]

18
crates/hir_def/src/item_tree/lower.rs
View File

@ -411,24 +411,24 @@ impl Ctx {
let ast_id = self.source_ast_id_map.ast_id(func);
let mut flags = FnFlags::empty();
let mut flags = FnFlags::default();
if func.body().is_some() {
flags |= FnFlags::HAS_BODY;
flags.bits |= FnFlags::HAS_BODY;
}
if has_self_param {
flags |= FnFlags::HAS_SELF_PARAM;
flags.bits |= FnFlags::HAS_SELF_PARAM;
}
if func.default_token().is_some() {
flags |= FnFlags::IS_DEFAULT;
flags.bits |= FnFlags::IS_DEFAULT;
}
if func.const_token().is_some() {
flags |= FnFlags::IS_CONST;
flags.bits |= FnFlags::IS_CONST;
}
if func.async_token().is_some() {
flags |= FnFlags::IS_ASYNC;
flags.bits |= FnFlags::IS_ASYNC;
}
if func.unsafe_token().is_some() {
flags |= FnFlags::IS_UNSAFE;
flags.bits |= FnFlags::IS_UNSAFE;
}
let mut res = Function {
@ -653,9 +653,9 @@ impl Ctx {
let func_id = self.lower_function(&ast)?;
let func = &mut self.data().functions[func_id.index];
if is_intrinsic_fn_unsafe(&func.name) {
func.flags |= FnFlags::IS_UNSAFE;
func.flags.bits |= FnFlags::IS_UNSAFE;
}
func.flags |= FnFlags::IS_IN_EXTERN_BLOCK;
func.flags.bits |= FnFlags::IS_IN_EXTERN_BLOCK;
func_id.into()
}
ast::ExternItem::Static(ast) => {