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Fix build with rust nightly by updating try block syntax. (#2965)

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This commit is contained in:
Zach Lute 2018-08-25 21:02:24 -07:00 • committed by Seiichi Uchida
parent 10512a59d0
commit ca19c9a35a
6 changed files with 71 additions and 69 deletions
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81
Cargo.lock generated
View file

@ -331,7 +331,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -401,15 +401,15 @@ dependencies = [
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@ -418,7 +418,7 @@ dependencies = [
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@ -541,9 +546,9 @@ dependencies = [
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@ -608,7 +613,7 @@ dependencies = [
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@ -840,7 +845,7 @@ dependencies = [
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6
Cargo.toml
View file

@ -47,9 +47,9 @@ env_logger = "0.5"
getopts = "0.2" getopts = "0.2"
derive-new = "0.5" derive-new = "0.5"
cargo_metadata = "0.6" cargo_metadata = "0.6"
rustc-ap-rustc_target = "235.0.0" rustc-ap-rustc_target = "237.0.0"
rustc-ap-syntax = "235.0.0" rustc-ap-syntax = "237.0.0"
rustc-ap-syntax_pos = "235.0.0" rustc-ap-syntax_pos = "237.0.0"
failure = "0.1.1" failure = "0.1.1"
[dev-dependencies] [dev-dependencies]

2
src/closures.rs
View file

@ -173,7 +173,7 @@ fn rewrite_closure_expr(
match expr.node { match expr.node {
ast::ExprKind::Match(..) ast::ExprKind::Match(..)
| ast::ExprKind::Block(..) | ast::ExprKind::Block(..)
| ast::ExprKind::Catch(..) | ast::ExprKind::TryBlock(..)
| ast::ExprKind::Loop(..) | ast::ExprKind::Loop(..)
| ast::ExprKind::Struct(..) => true, | ast::ExprKind::Struct(..) => true,

17
src/expr.rs
View file

@ -317,22 +317,17 @@ pub fn format_expr(
// We do not format these expressions yet, but they should still // We do not format these expressions yet, but they should still
// satisfy our width restrictions. // satisfy our width restrictions.
ast::ExprKind::InlineAsm(..) => Some(context.snippet(expr.span).to_owned()), ast::ExprKind::InlineAsm(..) => Some(context.snippet(expr.span).to_owned()),
ast::ExprKind::Catch(ref block) => { ast::ExprKind::TryBlock(ref block) => {
if let rw @ Some(_) = rewrite_single_line_block( if let rw @ Some(_) =
context, rewrite_single_line_block(context, "try ", block, Some(&expr.attrs), None, shape)
"do catch ", {
block,
Some(&expr.attrs),
None,
shape,
) {
rw rw
} else { } else {
// 9 = `do catch ` // 9 = `try `
let budget = shape.width.saturating_sub(9); let budget = shape.width.saturating_sub(9);
Some(format!( Some(format!(
"{}{}", "{}{}",
"do catch ", "try ",
rewrite_block( rewrite_block(
block, block,
Some(&expr.attrs), Some(&expr.attrs),

17
tests/source/catch.rs
View file

@ -1,27 +1,28 @@
#![feature(catch_expr)] // rustfmt-edition: Edition2018
#![feature(try_blocks)]
fn main() { fn main() {
let x = do catch { let x = try {
foo()? foo()?
}; };
let x = do catch /* Invisible comment */ { foo()? }; let x = try /* Invisible comment */ { foo()? };
let x = do catch { let x = try {
unsafe { foo()? } unsafe { foo()? }
}; };
let y = match (do catch { let y = match (try {
foo()? foo()?
}) { }) {
_ => (), _ => (),
}; };
do catch { try {
foo()?; foo()?;
}; };
do catch { try {
// Regular do catch block // Regular try block
}; };
} }

17
tests/target/catch.rs
View file

@ -1,21 +1,22 @@
#![feature(catch_expr)] // rustfmt-edition: Edition2018
#![feature(try_blocks)]
fn main() { fn main() {
let x = do catch { foo()? }; let x = try { foo()? };
let x = do catch /* Invisible comment */ { foo()? }; let x = try /* Invisible comment */ { foo()? };
let x = do catch { unsafe { foo()? } }; let x = try { unsafe { foo()? } };
let y = match (do catch { foo()? }) { let y = match (try { foo()? }) {
_ => (), _ => (),
}; };
do catch { try {
foo()?; foo()?;
}; };
do catch { try {
// Regular do catch block // Regular try block
}; };
} }