T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Lint fixes (#99)

Browse Source 
* Replace a single-character string literal with a character literal.

* Use is_some() instead of comparing with Some(_).

* Add code-quotes around type names in comments.

* Use !...is_empty() instead of len() != 0.

* Tidy up redundant returns.

* Remove redundant .clone() calls.

* Remove unnecessary explicit lifetime parameters.

* Tidy up unnecessary '&'s.

* Add parens to make operator precedence explicit.

* Use debug_assert_eq instead of debug_assert with ==.

* Replace a &Vec argument with a &[...].

* Replace `a = a op b` with `a op= b`.

* Avoid unnecessary closures.

* Avoid .iter() and .iter_mut() for iterating over containers.

* Remove unneeded qualification.
This commit is contained in:
Dan Gohman
2017-06-19 16:24:10 -07:00
committed by Jakob Stoklund Olesen
parent 1a480a2578
commit 61a0844b24
24 changed files with 132 additions and 137 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/cretonne/src/context.rs
View File

@@ -60,7 +60,7 @@ impl Context {
///
/// The `isa` argument is currently unused, but the verifier will soon be able to also
/// check ISA-dependent constraints.
pub fn verify<'a>(&self, isa: Option<&TargetIsa>) -> verifier::Result {
pub fn verify(&self, isa: Option<&TargetIsa>) -> verifier::Result {
verifier::verify_context(&self.func, &self.cfg, &self.domtree, isa)
}

52
lib/cretonne/src/ir/condcodes.rs
View File

@@ -88,17 +88,17 @@ impl CondCode for IntCC {
impl Display for IntCC {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
use self::IntCC::*;
f.write_str(match self {
&Equal => "eq",
&NotEqual => "ne",
&SignedGreaterThan => "sgt",
&SignedGreaterThanOrEqual => "sge",
&SignedLessThan => "slt",
&SignedLessThanOrEqual => "sle",
&UnsignedGreaterThan => "ugt",
&UnsignedGreaterThanOrEqual => "uge",
&UnsignedLessThan => "ult",
&UnsignedLessThanOrEqual => "ule",
f.write_str(match *self {
Equal => "eq",
NotEqual => "ne",
SignedGreaterThan => "sgt",
SignedGreaterThanOrEqual => "sge",
SignedLessThan => "slt",
SignedLessThanOrEqual => "sle",
UnsignedGreaterThan => "ugt",
UnsignedGreaterThanOrEqual => "uge",
UnsignedLessThan => "ult",
UnsignedLessThanOrEqual => "ule",
})
}
}
@@ -219,21 +219,21 @@ impl CondCode for FloatCC {
impl Display for FloatCC {
fn fmt(&self, f: &mut Formatter) -> fmt::Result {
use self::FloatCC::*;
f.write_str(match self {
&Ordered => "ord",
&Unordered => "uno",
&Equal => "eq",
&NotEqual => "ne",
&OrderedNotEqual => "one",
&UnorderedOrEqual => "ueq",
&LessThan => "lt",
&LessThanOrEqual => "le",
&GreaterThan => "gt",
&GreaterThanOrEqual => "ge",
&UnorderedOrLessThan => "ult",
&UnorderedOrLessThanOrEqual => "ule",
&UnorderedOrGreaterThan => "ugt",
&UnorderedOrGreaterThanOrEqual => "uge",
f.write_str(match *self {
Ordered => "ord",
Unordered => "uno",
Equal => "eq",
NotEqual => "ne",
OrderedNotEqual => "one",
UnorderedOrEqual => "ueq",
LessThan => "lt",
LessThanOrEqual => "le",
GreaterThan => "gt",
GreaterThanOrEqual => "ge",
UnorderedOrLessThan => "ult",
UnorderedOrLessThanOrEqual => "ule",
UnorderedOrGreaterThan => "ugt",
UnorderedOrGreaterThanOrEqual => "uge",
})
}
}

13
lib/cretonne/src/ir/dfg.rs
View File

@@ -247,10 +247,11 @@ impl DataFlowGraph {
// Try to create short alias chains by finding the original source value.
// This also avoids the creation of loops.
let original = self.resolve_aliases(src);
assert!(dest != original,
"Aliasing {} to {} would create a loop",
dest,
src);
assert_ne!(dest,
original,
"Aliasing {} to {} would create a loop",
dest,
src);
let ty = self.value_type(original);
assert_eq!(self.value_type(dest),
ty,
@@ -326,8 +327,8 @@ pub enum ValueDef {
impl ValueDef {
/// Unwrap the instruction where the value was defined, or panic.
pub fn unwrap_inst(&self) -> Inst {
match self {
&ValueDef::Res(inst, _) => inst,
match *self {
ValueDef::Res(inst, _) => inst,
_ => panic!("Value is not an instruction result"),
}
}

2
lib/cretonne/src/ir/extfunc.rs
View File

@@ -70,7 +70,7 @@ impl Signature {
pub struct DisplaySignature<'a>(&'a Signature, Option<&'a RegInfo>);
fn write_list(f: &mut fmt::Formatter,
args: &Vec<ArgumentType>,
args: &[ArgumentType],
regs: Option<&RegInfo>)
-> fmt::Result {
match args.split_first() {

4
lib/cretonne/src/ir/immediates.rs
View File

@@ -314,7 +314,7 @@ fn format_float(bits: u64, w: u8, t: u8, f: &mut Formatter) -> fmt::Result {
let max_e_bits = (1u64 << w) - 1;
let t_bits = bits & ((1u64 << t) - 1); // Trailing significand.
let e_bits = (bits >> t) & max_e_bits; // Biased exponent.
let sign_bit = (bits >> w + t) & 1;
let sign_bit = (bits >> (w + t)) & 1;
let bias: i32 = (1 << (w - 1)) - 1;
let e = e_bits as i32 - bias; // Unbiased exponent.
@@ -381,7 +381,7 @@ fn parse_float(s: &str, w: u8, t: u8) -> Result<u64, &'static str> {
debug_assert!((t + w + 1).is_power_of_two(), "Unexpected IEEE format size");
let (sign_bit, s2) = if s.starts_with('-') {
(1u64 << t + w, &s[1..])
(1u64 << (t + w), &s[1..])
} else if s.starts_with('+') {
(0, &s[1..])
} else {

28
lib/cretonne/src/ir/instructions.rs
View File

@@ -286,23 +286,23 @@ impl InstructionData {
/// Any instruction that can transfer control to another EBB reveals its possible destinations
/// here.
pub fn analyze_branch<'a>(&'a self, pool: &'a ValueListPool) -> BranchInfo<'a> {
match self {
&InstructionData::Jump {
match *self {
InstructionData::Jump {
destination,
ref args,
..
} => BranchInfo::SingleDest(destination, &args.as_slice(pool)),
&InstructionData::Branch {
} => BranchInfo::SingleDest(destination, args.as_slice(pool)),
InstructionData::Branch {
destination,
ref args,
..
} => BranchInfo::SingleDest(destination, &args.as_slice(pool)[1..]),
&InstructionData::BranchIcmp {
InstructionData::BranchIcmp {
destination,
ref args,
..
} => BranchInfo::SingleDest(destination, &args.as_slice(pool)[2..]),
&InstructionData::BranchTable { table, .. } => BranchInfo::Table(table),
InstructionData::BranchTable { table, .. } => BranchInfo::Table(table),
_ => BranchInfo::NotABranch,
}
}
@@ -312,10 +312,10 @@ impl InstructionData {
///
/// Multi-destination branches like `br_table` return `None`.
pub fn branch_destination(&self) -> Option<Ebb> {
match self {
&InstructionData::Jump { destination, .. } => Some(destination),
&InstructionData::Branch { destination, .. } => Some(destination),
&InstructionData::BranchIcmp { destination, .. } => Some(destination),
match *self {
InstructionData::Jump { destination, .. } => Some(destination),
InstructionData::Branch { destination, .. } => Some(destination),
InstructionData::BranchIcmp { destination, .. } => Some(destination),
_ => None,
}
}
@@ -337,11 +337,11 @@ impl InstructionData {
///
/// Any instruction that can call another function reveals its call signature here.
pub fn analyze_call<'a>(&'a self, pool: &'a ValueListPool) -> CallInfo<'a> {
match self {
&InstructionData::Call { func_ref, ref args, .. } => {
CallInfo::Direct(func_ref, &args.as_slice(pool))
match *self {
InstructionData::Call { func_ref, ref args, .. } => {
CallInfo::Direct(func_ref, args.as_slice(pool))
}
&InstructionData::IndirectCall { sig_ref, ref args, .. } => {
InstructionData::IndirectCall { sig_ref, ref args, .. } => {
CallInfo::Indirect(sig_ref, &args.as_slice(pool)[1..])
}
_ => CallInfo::NotACall,

2
lib/cretonne/src/ir/jumptable.rs
View File

@@ -65,7 +65,7 @@ impl JumpTableData {
/// Enumerate over all `(idx, dest)` pairs in the table in order.
///
/// This returns an iterator that skips any empty slots in the table.
pub fn entries<'a>(&'a self) -> Entries {
pub fn entries(&self) -> Entries {
Entries(self.table.iter().cloned().enumerate())
}

8
lib/cretonne/src/ir/valueloc.rs
View File

@@ -98,16 +98,16 @@ impl Default for ArgumentLoc {
impl ArgumentLoc {
/// Is this an assigned location? (That is, not `Unassigned`).
pub fn is_assigned(&self) -> bool {
match self {
&ArgumentLoc::Unassigned => false,
match *self {
ArgumentLoc::Unassigned => false,
_ => true,
}
}
/// Is this a register location?
pub fn is_reg(&self) -> bool {
match self {
&ArgumentLoc::Reg(_) => true,
match *self {
ArgumentLoc::Reg(_) => true,
_ => false,
}
}

6
lib/cretonne/src/isa/intel/binemit.rs
View File

@@ -10,13 +10,13 @@ pub static RELOC_NAMES: [&'static str; 1] = ["Call"];
// Emit single-byte opcode.
fn put_op1<CS: CodeSink + ?Sized>(bits: u16, sink: &mut CS) {
debug_assert!(bits & 0x0f00 == 0, "Invalid encoding bits for Op1*");
debug_assert_eq!(bits & 0x0f00, 0, "Invalid encoding bits for Op1*");
sink.put1(bits as u8);
}
// Emit two-byte opcode: 0F XX
fn put_op2<CS: CodeSink + ?Sized>(bits: u16, sink: &mut CS) {
debug_assert!(bits & 0x0f00 == 0x0400, "Invalid encoding bits for Op2*");
debug_assert_eq!(bits & 0x0f00, 0x0400, "Invalid encoding bits for Op2*");
sink.put1(0x0f);
sink.put1(bits as u8);
}
@@ -26,7 +26,7 @@ const PREFIX: [u8; 3] = [0x66, 0xf3, 0xf2];
// Emit single-byte opcode with mandatory prefix.
fn put_mp1<CS: CodeSink + ?Sized>(bits: u16, sink: &mut CS) {
debug_assert!(bits & 0x0c00 == 0, "Invalid encoding bits for Mp1*");
debug_assert_eq!(bits & 0x0c00, 0, "Invalid encoding bits for Mp1*");
let pp = (bits >> 8) & 3;
sink.put1(PREFIX[(pp - 1) as usize]);
sink.put1(bits as u8);

29
lib/cretonne/src/licm.rs
View File

@@ -21,18 +21,13 @@ pub fn do_licm(func: &mut Function,
let invariant_inst = remove_loop_invariant_instructions(lp, func, cfg, loop_analysis);
// Then we create the loop's pre-header and fill it with the invariant instructions
// Then we remove the invariant instructions from the loop body
if invariant_inst.len() > 0 {
if !invariant_inst.is_empty() {
// If the loop has a natural pre-header we use it, otherwise we create it.
let mut pos;
match has_pre_header(&func.layout,
cfg,
domtree,
loop_analysis.loop_header(lp).clone()) {
match has_pre_header(&func.layout, cfg, domtree, loop_analysis.loop_header(lp)) {
None => {
let pre_header = create_pre_header(loop_analysis.loop_header(lp).clone(),
func,
cfg,
domtree);
let pre_header =
create_pre_header(loop_analysis.loop_header(lp), func, cfg, domtree);
pos = Cursor::new(&mut func.layout);
pos.goto_bottom(pre_header);
pos.prev_inst();
@@ -47,7 +42,7 @@ pub fn do_licm(func: &mut Function,
// The last instruction of the pre-header is the termination instruction (usually
// a jump) so we need to insert just before this.
for inst in invariant_inst {
pos.insert_inst(inst.clone());
pos.insert_inst(inst);
}
}
}
@@ -146,7 +141,7 @@ fn remove_loop_invariant_instructions(lp: Loop,
for ebb in postorder_ebbs_loop(loop_analysis, cfg, lp).iter().rev() {
// Arguments of the EBB are loop values
for val in func.dfg.ebb_args(*ebb) {
loop_values.insert(val.clone());
loop_values.insert(*val);
}
pos.goto_top(*ebb);
while let Some(inst) = pos.next_inst() {
@@ -164,7 +159,7 @@ fn remove_loop_invariant_instructions(lp: Loop,
// If the instruction is not loop-invariant we push its results in the set of
// loop values
for out in func.dfg.inst_results(inst) {
loop_values.insert(out.clone());
loop_values.insert(*out);
}
}
}
@@ -176,7 +171,7 @@ fn remove_loop_invariant_instructions(lp: Loop,
fn postorder_ebbs_loop(loop_analysis: &LoopAnalysis, cfg: &ControlFlowGraph, lp: Loop) -> Vec<Ebb> {
let mut grey = HashSet::new();
let mut black = HashSet::new();
let mut stack = vec![loop_analysis.loop_header(lp).clone()];
let mut stack = vec![loop_analysis.loop_header(lp)];
let mut postorder = Vec::new();
while !stack.is_empty() {
@@ -187,13 +182,13 @@ fn postorder_ebbs_loop(loop_analysis: &LoopAnalysis, cfg: &ControlFlowGraph, lp:
stack.push(node);
// Get any children we've never seen before.
for child in cfg.get_successors(node) {
if loop_analysis.is_in_loop(child.clone(), lp) && !grey.contains(child) {
stack.push(child.clone());
if loop_analysis.is_in_loop(*child, lp) && !grey.contains(child) {
stack.push(*child);
}
}
} else if !black.contains(&node) {
postorder.push(node.clone());
black.insert(node.clone());
postorder.push(node);
black.insert(node);
}
}
postorder

6
lib/cretonne/src/regalloc/allocatable_set.rs
View File

@@ -50,14 +50,14 @@ impl AllocatableSet {
/// It is an error to take a register that doesn't have all of its register units available.
pub fn take(&mut self, rc: RegClass, reg: RegUnit) {
let (idx, bits) = bitmask(rc, reg);
debug_assert!((self.avail[idx] & bits) == bits, "Not available");
debug_assert_eq!(self.avail[idx] & bits, bits, "Not available");
self.avail[idx] &= !bits;
}
/// Make `reg` available for allocation again.
pub fn free(&mut self, rc: RegClass, reg: RegUnit) {
let (idx, bits) = bitmask(rc, reg);
debug_assert!((self.avail[idx] & bits) == 0, "Not allocated");
debug_assert_eq!(self.avail[idx] & bits, 0, "Not allocated");
self.avail[idx] |= bits;
}
@@ -118,7 +118,7 @@ impl Iterator for RegSetIter {
let unit = unit_offset + word.trailing_zeros() as RegUnit;
// Clear that lowest bit so we won't find it again.
*word = *word & (*word - 1);
*word &= *word - 1;
return Some(unit);
}

4
lib/cretonne/src/regalloc/pressure.rs
View File

@@ -199,7 +199,7 @@ impl Pressure {
/// Reset all counts to 0, both base and transient.
pub fn reset(&mut self) {
for e in self.toprc.iter_mut() {
for e in &mut self.toprc {
e.base_count = 0;
e.transient_count = 0;
}
@@ -220,7 +220,7 @@ impl Pressure {
/// Reset all transient counts to 0.
pub fn reset_transient(&mut self) {
for e in self.toprc.iter_mut() {
for e in &mut self.toprc {
e.transient_count = 0;
}
}

2
lib/cretonne/src/regalloc/reload.rs
View File

@@ -233,7 +233,7 @@ impl<'a> Context<'a> {
// Create a live range for the new reload.
let affinity = Affinity::Reg(cand.regclass.into());
self.liveness.create_dead(reg, dfg.value_def(reg), affinity);
self.liveness.extend_locally(reg, ebb, inst, &pos.layout);
self.liveness.extend_locally(reg, ebb, inst, pos.layout);
}
// Rewrite arguments.

2
lib/cretonne/src/regalloc/spilling.rs
View File

@@ -226,7 +226,7 @@ impl<'a> Context<'a> {
// Add register def to pressure, spill if needed.
while let Err(mask) = self.pressure.take_transient(op.regclass) {
dbg!("Need {} reg from {} throughs", op.regclass, throughs.len());
self.spill_from(mask, throughs, dfg, &pos.layout);
self.spill_from(mask, throughs, dfg, pos.layout);
}
}
}

3
lib/cretonne/src/result.rs
View File

@@ -3,7 +3,6 @@
use verifier;
use std::error::Error as StdError;
use std::fmt;
use std::result;
/// A compilation error.
///
@@ -32,7 +31,7 @@ pub enum CtonError {
}
/// A Cretonne compilation result.
pub type CtonResult = result::Result<(), CtonError>;
pub type CtonResult = Result<(), CtonError>;
impl fmt::Display for CtonError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {

4
lib/cretonne/src/simple_gvn.rs
View File

@@ -16,7 +16,7 @@ fn trivially_unsafe_for_gvn(opcode: Opcode) -> bool {
pub fn do_simple_gvn(func: &mut Function, cfg: &mut ControlFlowGraph) {
let mut visible_values: HashMap<InstructionData, Inst> = HashMap::new();
let domtree = DominatorTree::with_function(func, &cfg);
let domtree = DominatorTree::with_function(func, cfg);
// Visit EBBs in a reverse post-order.
let mut pos = Cursor::new(&mut func.layout);
@@ -47,7 +47,7 @@ pub fn do_simple_gvn(func: &mut Function, cfg: &mut ControlFlowGraph) {
use std::collections::hash_map::Entry::*;
match entry {
Occupied(mut entry) => {
if domtree.dominates(*entry.get(), inst, &pos.layout) {
if domtree.dominates(*entry.get(), inst, pos.layout) {
func.dfg.replace_with_aliases(inst, *entry.get());
pos.remove_inst_and_step_back();
} else {

2
lib/cretonne/src/topo_order.rs
View File

@@ -73,7 +73,7 @@ impl TopoOrder {
}
}
}
return self.stack.pop();
self.stack.pop()
}
}

64
lib/cretonne/src/verifier/mod.rs
View File

@@ -229,21 +229,21 @@ impl<'a> Verifier<'a> {
self.verify_value(inst, res)?;
}
match &self.func.dfg[inst] {
&MultiAry { ref args, .. } => {
match self.func.dfg[inst] {
MultiAry { ref args, .. } => {
self.verify_value_list(inst, args)?;
}
&Jump {
Jump {
destination,
ref args,
..
} |
&Branch {
Branch {
destination,
ref args,
..
} |
&BranchIcmp {
BranchIcmp {
destination,
ref args,
..
@@ -251,41 +251,41 @@ impl<'a> Verifier<'a> {
self.verify_ebb(inst, destination)?;
self.verify_value_list(inst, args)?;
}
&BranchTable { table, .. } => {
BranchTable { table, .. } => {
self.verify_jump_table(inst, table)?;
}
&Call { func_ref, ref args, .. } => {
Call { func_ref, ref args, .. } => {
self.verify_func_ref(inst, func_ref)?;
self.verify_value_list(inst, args)?;
}
&IndirectCall { sig_ref, ref args, .. } => {
IndirectCall { sig_ref, ref args, .. } => {
self.verify_sig_ref(inst, sig_ref)?;
self.verify_value_list(inst, args)?;
}
&StackLoad { stack_slot, .. } |
&StackStore { stack_slot, .. } => {
StackLoad { stack_slot, .. } |
StackStore { stack_slot, .. } => {
self.verify_stack_slot(inst, stack_slot)?;
}
// Exhaustive list so we can't forget to add new formats
&Nullary { .. } |
&Unary { .. } |
&UnaryImm { .. } |
&UnaryIeee32 { .. } |
&UnaryIeee64 { .. } |
&Binary { .. } |
&BinaryImm { .. } |
&Ternary { .. } |
&InsertLane { .. } |
&ExtractLane { .. } |
&IntCompare { .. } |
&IntCompareImm { .. } |
&FloatCompare { .. } |
&HeapLoad { .. } |
&HeapStore { .. } |
&Load { .. } |
&Store { .. } |
&RegMove { .. } => {}
Nullary { .. } |
Unary { .. } |
UnaryImm { .. } |
UnaryIeee32 { .. } |
UnaryIeee64 { .. } |
Binary { .. } |
BinaryImm { .. } |
Ternary { .. } |
InsertLane { .. } |
ExtractLane { .. } |
IntCompare { .. } |
IntCompareImm { .. } |
FloatCompare { .. } |
HeapLoad { .. } |
HeapStore { .. } |
Load { .. } |
Store { .. } |
RegMove { .. } => {}
}
Ok(())
@@ -627,14 +627,14 @@ impl<'a> Verifier<'a> {
got_succs.extend(cfg.get_successors(ebb));
let missing_succs: Vec<Ebb> = expected_succs.difference(&got_succs).cloned().collect();
if missing_succs.len() != 0 {
if !missing_succs.is_empty() {
return err!(ebb,
"cfg lacked the following successor(s) {:?}",
missing_succs);
}
let excess_succs: Vec<Ebb> = got_succs.difference(&expected_succs).cloned().collect();
if excess_succs.len() != 0 {
if !excess_succs.is_empty() {
return err!(ebb, "cfg had unexpected successor(s) {:?}", excess_succs);
}
@@ -642,14 +642,14 @@ impl<'a> Verifier<'a> {
got_preds.extend(cfg.get_predecessors(ebb).iter().map(|&(_, inst)| inst));
let missing_preds: Vec<Inst> = expected_preds.difference(&got_preds).cloned().collect();
if missing_preds.len() != 0 {
if !missing_preds.is_empty() {
return err!(ebb,
"cfg lacked the following predecessor(s) {:?}",
missing_preds);
}
let excess_preds: Vec<Inst> = got_preds.difference(&expected_preds).cloned().collect();
if excess_preds.len() != 0 {
if !excess_preds.is_empty() {
return err!(ebb, "cfg had unexpected predecessor(s) {:?}", excess_preds);
}

6
lib/filecheck/src/checker.rs
View File

@@ -66,7 +66,7 @@ impl Directive {
return Err(Error::Syntax(format!("invalid variable name in regex: {}", rest)));
}
let var = rest[0..varlen].to_string();
if !rest[varlen..].starts_with("=") {
if !rest[varlen..].starts_with('=') {
return Err(Error::Syntax(format!("expected '=' after variable '{}' in regex: {}",
var,
rest)));
@@ -196,7 +196,7 @@ impl Checker {
// Check if `pat` matches in `range`.
state.recorder.directive(dct_idx);
if let Some((match_begin, match_end)) = state.match_positive(pat, range)? {
if let &Directive::Unordered(_) = dct {
if let Directive::Unordered(_) = *dct {
// This was an unordered unordered match.
// Keep track of the largest matched position, but leave `last_ordered` alone.
state.max_match = max(state.max_match, match_end);
@@ -231,7 +231,7 @@ impl Checker {
// Verify any pending `not:` directives after the last ordered directive.
for (not_idx, not_begin, rx) in nots.drain(..) {
state.recorder.directive(not_idx);
if let Some(_) = rx.find(&text[not_begin..]) {
if rx.find(&text[not_begin..]).is_some() {
// Matched `not:` pattern.
// TODO: Use matched range for an error message.
return Ok(false);

4
lib/filecheck/src/lib.rs
View File

@@ -4,8 +4,8 @@
//! A list of directives is typically extracted from a file containing a test case. The test case
//! is then run through the program under test, and its output matched against the directives.
//!
//! See the [CheckerBuilder](struct.CheckerBuilder.html) and [Checker](struct.Checker.html) types
//! for the main library API.
//! See the [`CheckerBuilder`](struct.CheckerBuilder.html) and [`Checker`](struct.Checker.html)
//! types for the main library API.
//!
//! # Directives
//!

2
lib/reader/src/isaspec.rs
View File

@@ -25,7 +25,7 @@ pub enum IsaSpec {
impl IsaSpec {
/// If the `IsaSpec` contains exactly 1 `TargetIsa` we return a reference to it
pub fn unique_isa(&self) -> Option<&TargetIsa> {
if let &IsaSpec::Some(ref isa_vec) = self {
if let IsaSpec::Some(ref isa_vec) = *self {
if isa_vec.len() == 1 {
return Some(&*isa_vec[0]);
}

16
lib/reader/src/lexer.rs
View File

@@ -171,7 +171,7 @@ impl<'a> Lexer<'a> {
// Scan a single-char token.
fn scan_char(&mut self, tok: Token<'a>) -> Result<LocatedToken<'a>, LocatedError> {
assert!(self.lookahead != None);
assert_ne!(self.lookahead, None);
let loc = self.loc();
self.next_ch();
token(tok, loc)
@@ -184,7 +184,7 @@ impl<'a> Lexer<'a> {
-> Result<LocatedToken<'a>, LocatedError> {
let loc = self.loc();
for _ in 0..count {
assert!(self.lookahead != None);
assert_ne!(self.lookahead, None);
self.next_ch();
}
token(tok, loc)
@@ -206,7 +206,7 @@ impl<'a> Lexer<'a> {
fn scan_comment(&mut self) -> Result<LocatedToken<'a>, LocatedError> {
let loc = self.loc();
let text = self.rest_of_line();
return token(Token::Comment(text), loc);
token(Token::Comment(text), loc)
}
// Scan a number token which can represent either an integer or floating point number.
@@ -305,8 +305,8 @@ impl<'a> Lexer<'a> {
// decoded token.
fn numbered_entity(prefix: &str, number: u32) -> Option<Token<'a>> {
match prefix {
"v" => Value::with_number(number).map(|v| Token::Value(v)),
"ebb" => Ebb::with_number(number).map(|ebb| Token::Ebb(ebb)),
"v" => Value::with_number(number).map(Token::Value),
"ebb" => Ebb::with_number(number).map(Token::Ebb),
"ss" => Some(Token::StackSlot(number)),
"jt" => Some(Token::JumpTable(number)),
"fn" => Some(Token::FuncRef(number)),
@@ -339,7 +339,7 @@ impl<'a> Lexer<'a> {
};
if is_vector {
if number <= u16::MAX as u32 {
base_type.by(number as u16).map(|t| Token::Type(t))
base_type.by(number as u16).map(Token::Type)
} else {
None
}
@@ -352,7 +352,7 @@ impl<'a> Lexer<'a> {
let loc = self.loc();
let begin = self.pos + 1;
assert!(self.lookahead == Some('%'));
assert_eq!(self.lookahead, Some('%'));
while let Some(c) = self.next_ch() {
if !(c.is_ascii() && c.is_alphanumeric() || c == '_') {
@@ -368,7 +368,7 @@ impl<'a> Lexer<'a> {
let loc = self.loc();
let begin = self.pos + 1;
assert!(self.lookahead == Some('#'));
assert_eq!(self.lookahead, Some('#'));
while let Some(c) = self.next_ch() {
if !char::is_digit(c, 16) {

6
lib/reader/src/parser.rs
View File

@@ -282,7 +282,7 @@ impl<'a> Parser<'a> {
None => break,
}
}
return self.lookahead;
self.lookahead
}
// Begin gathering comments associated with `entity`.
@@ -397,7 +397,7 @@ impl<'a> Parser<'a> {
fn error(&self, message: &str) -> Error {
Error {
location: self.loc.clone(),
location: self.loc,
message: message.to_string(),
}
}
@@ -1066,7 +1066,7 @@ impl<'a> Parser<'a> {
self.consume();
self.parse_instruction(results, encoding, result_locations, ctx, ebb)?;
}
_ if results.len() != 0 => return err!(self.loc, "expected -> or ="),
_ if !results.is_empty() => return err!(self.loc, "expected -> or ="),
_ => self.parse_instruction(results, encoding, result_locations, ctx, ebb)?,
}
}

2
lib/reader/src/sourcemap.rs
View File

@@ -208,7 +208,7 @@ impl MutableSourceMap for SourceMap {
}
fn def_entity(&mut self, entity: AnyEntity, loc: &Location) -> Result<()> {
if self.locations.insert(entity, loc.clone()).is_some() {
if self.locations.insert(entity, *loc).is_some() {
err!(loc, "duplicate entity: {}", entity)
} else {
Ok(())