bjoernager/rust
bjoernager/rust
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implement generic_arg_infer for array lengths

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This commit is contained in:
lcnr 2021-12-23 10:01:51 +01:00
parent 5aa0239b16
commit e3f5cc6c38
19 changed files with 161 additions and 51 deletions
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13
compiler/rustc_hir_pretty/src/lib.rs
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@ -358,7 +358,7 @@ impl<'a> State<'a> {
self.word("[");
self.print_type(&ty);
self.word("; ");
self.print_anon_const(length);
self.print_array_length(length);
self.word("]");
}
hir::TyKind::Typeof(ref e) => {
@ -1065,6 +1065,13 @@ impl<'a> State<'a> {
self.print_else(elseopt)
}
pub fn print_array_length(&mut self, len: &hir::ArrayLen) {
match len {
hir::ArrayLen::Infer(_, _) => self.word("_"),
hir::ArrayLen::Body(ct) => self.print_anon_const(ct),
}
}
pub fn print_anon_const(&mut self, constant: &hir::AnonConst) {
self.ann.nested(self, Nested::Body(constant.body))
}
@ -1140,12 +1147,12 @@ impl<'a> State<'a> {
self.end()
}
fn print_expr_repeat(&mut self, element: &hir::Expr<'_>, count: &hir::AnonConst) {
fn print_expr_repeat(&mut self, element: &hir::Expr<'_>, count: &hir::ArrayLen) {
self.ibox(INDENT_UNIT);
self.word("[");
self.print_expr(element);
self.word_space(";");
self.print_anon_const(count);
self.print_array_length(count);
self.word("]");
self.end()
}