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Remove unreachable branch in format_args ast lowering.

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This commit is contained in:
Mara Bos 2023-01-13 19:01:59 +01:00
parent b6c988b041
commit 0554401fcc
1 changed files with 8 additions and 19 deletions
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15
compiler/rustc_ast_lowering/src/format.rs
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@ -442,25 +442,14 @@ fn expand_format_args<'hir>(
let args_ident = Ident::new(sym::args, macsp);
let (args_pat, args_hir_id) = ctx.pat_ident(macsp, args_ident);
let args = ctx.arena.alloc_from_iter(argmap.iter().map(|&(arg_index, ty)| {
if let Some(arg) = arguments.get(arg_index) {
let arg = &arguments[arg_index];
let sp = arg.expr.span.with_ctxt(macsp.ctxt());
let args_ident_expr = ctx.expr_ident(macsp, args_ident, args_hir_id);
let arg = ctx.arena.alloc(ctx.expr(
sp,
hir::ExprKind::Field(
args_ident_expr,
Ident::new(sym::integer(arg_index), macsp),
),
hir::ExprKind::Field(args_ident_expr, Ident::new(sym::integer(arg_index), macsp)),
));
make_argument(ctx, sp, arg, ty)
} else {
ctx.expr(
macsp,
hir::ExprKind::Err(
ctx.tcx.sess.delay_span_bug(macsp, format!("no arg at {arg_index}")),
),
)
}
}));
let elements: Vec<_> = arguments
.iter()