Rollup merge of #73195 - ayazhafiz:i/73145, r=estebank
Provide suggestion to convert numeric op LHS rather than unwrapping RHS
Given a code
```rust
fn foo(x: u8, y: u32) -> bool {
x > y
}
fn main() {}
```
it could be more helpful to provide a suggestion to do "u32::from(x)"
rather than "y.try_into().unwrap()", since the latter may panic.
We do this by passing the LHS of a binary expression up the stack into
the coercion checker.
Closes #73145
This commit is contained in:
Dylan DPC
GitHub
commit
7bdf7d09b0
@ -1377,7 +1377,7 @@ fn coerce_inner<'a>(
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}
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if let Some(expr) = expression {
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fcx.emit_coerce_suggestions(&mut err, expr, found, expected);
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fcx.emit_coerce_suggestions(&mut err, expr, found, expected, None);
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}
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// Error possibly reported in `check_assign` so avoid emitting error again.
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@ -24,10 +24,11 @@ pub fn emit_coerce_suggestions(
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expr: &hir::Expr<'_>,
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expr_ty: Ty<'tcx>,
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expected: Ty<'tcx>,
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expected_ty_expr: Option<&'tcx hir::Expr<'tcx>>,
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) {
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self.annotate_expected_due_to_let_ty(err, expr);
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self.suggest_compatible_variants(err, expr, expected, expr_ty);
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self.suggest_deref_ref_or_into(err, expr, expected, expr_ty);
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self.suggest_deref_ref_or_into(err, expr, expected, expr_ty, expected_ty_expr);
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if self.suggest_calling_boxed_future_when_appropriate(err, expr, expected, expr_ty) {
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return;
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}
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@ -102,9 +103,11 @@ pub fn demand_coerce(
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expr: &hir::Expr<'_>,
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checked_ty: Ty<'tcx>,
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expected: Ty<'tcx>,
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expected_ty_expr: Option<&'tcx hir::Expr<'tcx>>,
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allow_two_phase: AllowTwoPhase,
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) -> Ty<'tcx> {
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let (ty, err) = self.demand_coerce_diag(expr, checked_ty, expected, allow_two_phase);
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let (ty, err) =
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self.demand_coerce_diag(expr, checked_ty, expected, expected_ty_expr, allow_two_phase);
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if let Some(mut err) = err {
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err.emit();
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}
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@ -121,6 +124,7 @@ pub fn demand_coerce_diag(
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expr: &hir::Expr<'_>,
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checked_ty: Ty<'tcx>,
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expected: Ty<'tcx>,
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expected_ty_expr: Option<&'tcx hir::Expr<'tcx>>,
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allow_two_phase: AllowTwoPhase,
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) -> (Ty<'tcx>, Option<DiagnosticBuilder<'tcx>>) {
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let expected = self.resolve_vars_with_obligations(expected);
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@ -141,7 +145,7 @@ pub fn demand_coerce_diag(
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return (expected, None);
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}
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self.emit_coerce_suggestions(&mut err, expr, expr_ty, expected);
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self.emit_coerce_suggestions(&mut err, expr, expr_ty, expected, expected_ty_expr);
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(expected, Some(err))
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}
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@ -671,6 +675,7 @@ pub fn check_for_cast(
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expr: &hir::Expr<'_>,
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checked_ty: Ty<'tcx>,
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expected_ty: Ty<'tcx>,
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expected_ty_expr: Option<&'tcx hir::Expr<'tcx>>,
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) -> bool {
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if self.tcx.sess.source_map().is_imported(expr.span) {
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// Ignore if span is from within a macro.
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@ -747,7 +752,6 @@ pub fn check_for_cast(
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let msg = format!("you can convert an `{}` to `{}`", checked_ty, expected_ty);
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let cast_msg = format!("you can cast an `{} to `{}`", checked_ty, expected_ty);
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let try_msg = format!("{} and panic if the converted value wouldn't fit", msg);
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let lit_msg = format!(
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"change the type of the numeric literal from `{}` to `{}`",
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checked_ty, expected_ty,
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@ -761,7 +765,6 @@ pub fn check_for_cast(
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};
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let cast_suggestion = format!("{}{} as {}", prefix, with_opt_paren(&src), expected_ty);
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let try_into_suggestion = format!("{}{}.try_into().unwrap()", prefix, with_opt_paren(&src));
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let into_suggestion = format!("{}{}.into()", prefix, with_opt_paren(&src));
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let suffix_suggestion = with_opt_paren(&format_args!(
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"{}{}",
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@ -782,22 +785,55 @@ pub fn check_for_cast(
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};
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let in_const_context = self.tcx.hir().is_inside_const_context(expr.hir_id);
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let suggest_fallible_into_or_lhs_from =
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|err: &mut DiagnosticBuilder<'_>, exp_to_found_is_fallible: bool| {
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// If we know the expression the expected type is derived from, we might be able
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// to suggest a widening conversion rather than a narrowing one (which may
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// panic). For example, given x: u8 and y: u32, if we know the span of "x",
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// x > y
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// can be given the suggestion "u32::from(x) > y" rather than
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// "x > y.try_into().unwrap()".
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let lhs_expr_and_src = expected_ty_expr.and_then(|expr| {
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match self.tcx.sess.source_map().span_to_snippet(expr.span).ok() {
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Some(src) => Some((expr, src)),
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None => None,
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}
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});
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let (span, msg, suggestion) = if let (Some((lhs_expr, lhs_src)), false) =
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(lhs_expr_and_src, exp_to_found_is_fallible)
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{
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let msg = format!(
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"you can convert `{}` from `{}` to `{}`, matching the type of `{}`",
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lhs_src, expected_ty, checked_ty, src
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);
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let suggestion = format!("{}::from({})", checked_ty, lhs_src,);
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(lhs_expr.span, msg, suggestion)
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} else {
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let msg = format!("{} and panic if the converted value wouldn't fit", msg);
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let suggestion =
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format!("{}{}.try_into().unwrap()", prefix, with_opt_paren(&src));
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(expr.span, msg, suggestion)
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};
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err.span_suggestion(span, &msg, suggestion, Applicability::MachineApplicable);
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};
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let suggest_to_change_suffix_or_into =
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|err: &mut DiagnosticBuilder<'_>, is_fallible: bool| {
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|err: &mut DiagnosticBuilder<'_>,
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found_to_exp_is_fallible: bool,
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exp_to_found_is_fallible: bool| {
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let msg = if literal_is_ty_suffixed(expr) {
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&lit_msg
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} else if in_const_context {
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// Do not recommend `into` or `try_into` in const contexts.
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return;
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} else if is_fallible {
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&try_msg
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} else if found_to_exp_is_fallible {
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return suggest_fallible_into_or_lhs_from(err, exp_to_found_is_fallible);
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} else {
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&msg
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};
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let suggestion = if literal_is_ty_suffixed(expr) {
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suffix_suggestion.clone()
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} else if is_fallible {
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try_into_suggestion
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} else {
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into_suggestion.clone()
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};
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@ -806,41 +842,54 @@ pub fn check_for_cast(
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match (&expected_ty.kind, &checked_ty.kind) {
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(&ty::Int(ref exp), &ty::Int(ref found)) => {
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let is_fallible = match (exp.bit_width(), found.bit_width()) {
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(Some(exp), Some(found)) if exp < found => true,
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(None, Some(8 | 16)) => false,
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(None, _) | (_, None) => true,
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_ => false,
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let (f2e_is_fallible, e2f_is_fallible) = match (exp.bit_width(), found.bit_width())
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{
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(Some(exp), Some(found)) if exp < found => (true, false),
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(Some(exp), Some(found)) if exp > found => (false, true),
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(None, Some(8 | 16)) => (false, true),
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(Some(8 | 16), None) => (true, false),
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(None, _) | (_, None) => (true, true),
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_ => (false, false),
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};
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suggest_to_change_suffix_or_into(err, is_fallible);
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suggest_to_change_suffix_or_into(err, f2e_is_fallible, e2f_is_fallible);
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true
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}
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(&ty::Uint(ref exp), &ty::Uint(ref found)) => {
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let is_fallible = match (exp.bit_width(), found.bit_width()) {
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(Some(exp), Some(found)) if exp < found => true,
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(None, Some(8 | 16)) => false,
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(None, _) | (_, None) => true,
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_ => false,
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let (f2e_is_fallible, e2f_is_fallible) = match (exp.bit_width(), found.bit_width())
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{
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(Some(exp), Some(found)) if exp < found => (true, false),
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(Some(exp), Some(found)) if exp > found => (false, true),
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(None, Some(8 | 16)) => (false, true),
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(Some(8 | 16), None) => (true, false),
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(None, _) | (_, None) => (true, true),
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_ => (false, false),
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};
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suggest_to_change_suffix_or_into(err, is_fallible);
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suggest_to_change_suffix_or_into(err, f2e_is_fallible, e2f_is_fallible);
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true
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}
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(&ty::Int(exp), &ty::Uint(found)) => {
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let is_fallible = match (exp.bit_width(), found.bit_width()) {
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(Some(exp), Some(found)) if found < exp => false,
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(None, Some(8)) => false,
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_ => true,
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let (f2e_is_fallible, e2f_is_fallible) = match (exp.bit_width(), found.bit_width())
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{
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(Some(exp), Some(found)) if found < exp => (false, true),
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(None, Some(8)) => (false, true),
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_ => (true, true),
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};
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suggest_to_change_suffix_or_into(err, is_fallible);
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suggest_to_change_suffix_or_into(err, f2e_is_fallible, e2f_is_fallible);
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true
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}
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(&ty::Uint(_), &ty::Int(_)) => {
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suggest_to_change_suffix_or_into(err, true);
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(&ty::Uint(exp), &ty::Int(found)) => {
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let (f2e_is_fallible, e2f_is_fallible) = match (exp.bit_width(), found.bit_width())
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{
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(Some(exp), Some(found)) if found > exp => (true, false),
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(Some(8), None) => (true, false),
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_ => (true, true),
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};
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suggest_to_change_suffix_or_into(err, f2e_is_fallible, e2f_is_fallible);
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true
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}
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(&ty::Float(ref exp), &ty::Float(ref found)) => {
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if found.bit_width() < exp.bit_width() {
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suggest_to_change_suffix_or_into(err, false);
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suggest_to_change_suffix_or_into(err, false, true);
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} else if literal_is_ty_suffixed(expr) {
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err.span_suggestion(
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expr.span,
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@ -86,7 +86,7 @@ fn check_expr_meets_expectation_or_error(
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if let Some(mut err) = self.demand_suptype_diag(expr.span, expected_ty, ty) {
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let expr = expr.peel_drop_temps();
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self.suggest_deref_ref_or_into(&mut err, expr, expected_ty, ty);
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self.suggest_deref_ref_or_into(&mut err, expr, expected_ty, ty, None);
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extend_err(&mut err);
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// Error possibly reported in `check_assign` so avoid emitting error again.
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err.emit_unless(self.is_assign_to_bool(expr, expected_ty));
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@ -98,10 +98,11 @@ pub(super) fn check_expr_coercable_to_type(
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&self,
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expr: &'tcx hir::Expr<'tcx>,
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expected: Ty<'tcx>,
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expected_ty_expr: Option<&'tcx hir::Expr<'tcx>>,
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) -> Ty<'tcx> {
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let ty = self.check_expr_with_hint(expr, expected);
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// checks don't need two phase
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self.demand_coerce(expr, ty, expected, AllowTwoPhase::No)
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self.demand_coerce(expr, ty, expected, expected_ty_expr, AllowTwoPhase::No)
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}
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pub(super) fn check_expr_with_hint(
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@ -776,7 +777,7 @@ fn check_expr_assign(
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span: &Span,
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) -> Ty<'tcx> {
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let lhs_ty = self.check_expr_with_needs(&lhs, Needs::MutPlace);
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let rhs_ty = self.check_expr_coercable_to_type(&rhs, lhs_ty);
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let rhs_ty = self.check_expr_coercable_to_type(&rhs, lhs_ty, Some(lhs));
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let expected_ty = expected.coercion_target_type(self, expr.span);
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if expected_ty == self.tcx.types.bool {
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@ -1026,7 +1027,7 @@ fn check_expr_repeat(
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let (element_ty, t) = match uty {
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Some(uty) => {
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self.check_expr_coercable_to_type(&element, uty);
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self.check_expr_coercable_to_type(&element, uty, None);
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(uty, uty)
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}
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None => {
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@ -1063,7 +1064,7 @@ fn check_expr_tuple(
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let elt_ts_iter = elts.iter().enumerate().map(|(i, e)| match flds {
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Some(ref fs) if i < fs.len() => {
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let ety = fs[i].expect_ty();
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self.check_expr_coercable_to_type(&e, ety);
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self.check_expr_coercable_to_type(&e, ety, None);
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ety
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}
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_ => self.check_expr_with_expectation(&e, NoExpectation),
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@ -1237,7 +1238,7 @@ fn check_expr_struct_fields(
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// Make sure to give a type to the field even if there's
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// an error, so we can continue type-checking.
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self.check_expr_coercable_to_type(&field.expr, field_type);
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self.check_expr_coercable_to_type(&field.expr, field_type, None);
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}
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// Make sure the programmer specified correct number of fields.
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@ -1735,7 +1736,7 @@ fn check_expr_index(
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match self.lookup_indexing(expr, base, base_t, idx_t, needs) {
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Some((index_ty, element_ty)) => {
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// two-phase not needed because index_ty is never mutable
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self.demand_coerce(idx, idx_t, index_ty, AllowTwoPhase::No);
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self.demand_coerce(idx, idx_t, index_ty, None, AllowTwoPhase::No);
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element_ty
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}
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None => {
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@ -1788,7 +1789,7 @@ fn check_expr_yield(
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) -> Ty<'tcx> {
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match self.resume_yield_tys {
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Some((resume_ty, yield_ty)) => {
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self.check_expr_coercable_to_type(&value, yield_ty);
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self.check_expr_coercable_to_type(&value, yield_ty, None);
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resume_ty
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}
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@ -1797,7 +1798,7 @@ fn check_expr_yield(
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// information. Hence, we check the source of the yield expression here and check its
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// value's type against `()` (this check should always hold).
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None if src.is_await() => {
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self.check_expr_coercable_to_type(&value, self.tcx.mk_unit());
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self.check_expr_coercable_to_type(&value, self.tcx.mk_unit(), None);
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self.tcx.mk_unit()
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}
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_ => {
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@ -1836,11 +1837,11 @@ fn check_expr_asm_operand(&self, expr: &'tcx hir::Expr<'tcx>, is_input: bool) {
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match ty.kind {
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ty::FnDef(..) => {
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let fnptr_ty = self.tcx.mk_fn_ptr(ty.fn_sig(self.tcx));
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self.demand_coerce(expr, ty, fnptr_ty, AllowTwoPhase::No);
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self.demand_coerce(expr, ty, fnptr_ty, None, AllowTwoPhase::No);
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}
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ty::Ref(_, base_ty, mutbl) => {
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let ptr_ty = self.tcx.mk_ptr(ty::TypeAndMut { ty: base_ty, mutbl });
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self.demand_coerce(expr, ty, ptr_ty, AllowTwoPhase::No);
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self.demand_coerce(expr, ty, ptr_ty, None, AllowTwoPhase::No);
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}
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_ => {}
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}
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@ -1046,7 +1046,7 @@ fn typeck_tables_of_with_fallback<'tcx>(
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// Gather locals in statics (because of block expressions).
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GatherLocalsVisitor { fcx: &fcx, parent_id: id }.visit_body(body);
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fcx.check_expr_coercable_to_type(&body.value, revealed_ty);
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fcx.check_expr_coercable_to_type(&body.value, revealed_ty, None);
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fcx.write_ty(id, revealed_ty);
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@ -4123,7 +4123,7 @@ fn check_argument_types(
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let coerce_ty = expected.only_has_type(self).unwrap_or(formal_ty);
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// We're processing function arguments so we definitely want to use
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// two-phase borrows.
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self.demand_coerce(&arg, checked_ty, coerce_ty, AllowTwoPhase::Yes);
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self.demand_coerce(&arg, checked_ty, coerce_ty, None, AllowTwoPhase::Yes);
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final_arg_types.push((i, checked_ty, coerce_ty));
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// 3. Relate the expected type and the formal one,
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@ -4541,7 +4541,7 @@ pub fn check_decl_initializer(
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self.demand_eqtype(init.span, local_ty, init_ty);
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init_ty
|
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} else {
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self.check_expr_coercable_to_type(init, local_ty)
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self.check_expr_coercable_to_type(init, local_ty, None)
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}
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}
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@ -5027,6 +5027,7 @@ pub fn suggest_deref_ref_or_into(
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expr: &hir::Expr<'_>,
|
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expected: Ty<'tcx>,
|
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found: Ty<'tcx>,
|
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expected_ty_expr: Option<&'tcx hir::Expr<'tcx>>,
|
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) {
|
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if let Some((sp, msg, suggestion, applicability)) = self.check_ref(expr, found, expected) {
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err.span_suggestion(sp, msg, suggestion, applicability);
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@ -5037,7 +5038,7 @@ pub fn suggest_deref_ref_or_into(
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let sp = self.sess().source_map().guess_head_span(sp);
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err.span_label(sp, &format!("{} defined here", found));
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}
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} else if !self.check_for_cast(err, expr, found, expected) {
|
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} else if !self.check_for_cast(err, expr, found, expected, expected_ty_expr) {
|
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let is_struct_pat_shorthand_field =
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self.is_hir_id_from_struct_pattern_shorthand_field(expr.hir_id, expr.span);
|
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let methods = self.get_conversion_methods(expr.span, expected, found, expr.hir_id);
|
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|
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@ -57,9 +57,9 @@ pub fn check_binop(
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match BinOpCategory::from(op) {
|
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BinOpCategory::Shortcircuit => {
|
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// && and || are a simple case.
|
||||
self.check_expr_coercable_to_type(lhs_expr, tcx.types.bool);
|
||||
self.check_expr_coercable_to_type(lhs_expr, tcx.types.bool, None);
|
||||
let lhs_diverges = self.diverges.get();
|
||||
self.check_expr_coercable_to_type(rhs_expr, tcx.types.bool);
|
||||
self.check_expr_coercable_to_type(rhs_expr, tcx.types.bool, None);
|
||||
|
||||
// Depending on the LHS' value, the RHS can never execute.
|
||||
self.diverges.set(lhs_diverges);
|
||||
@ -170,7 +170,7 @@ fn check_overloaded_binop(
|
||||
kind: TypeVariableOriginKind::MiscVariable,
|
||||
span: lhs_expr.span,
|
||||
});
|
||||
self.demand_coerce(lhs_expr, lhs_ty, fresh_var, AllowTwoPhase::No)
|
||||
self.demand_coerce(lhs_expr, lhs_ty, fresh_var, Some(rhs_expr), AllowTwoPhase::No)
|
||||
}
|
||||
IsAssign::Yes => {
|
||||
// rust-lang/rust#52126: We have to use strict
|
||||
@ -196,7 +196,7 @@ fn check_overloaded_binop(
|
||||
let result = self.lookup_op_method(lhs_ty, &[rhs_ty_var], Op::Binary(op, is_assign));
|
||||
|
||||
// see `NB` above
|
||||
let rhs_ty = self.check_expr_coercable_to_type(rhs_expr, rhs_ty_var);
|
||||
let rhs_ty = self.check_expr_coercable_to_type(rhs_expr, rhs_ty_var, Some(lhs_expr));
|
||||
let rhs_ty = self.resolve_vars_with_obligations(rhs_ty);
|
||||
|
||||
let return_ty = match result {
|
||||
|
||||
320
src/test/ui/numeric/numeric-cast-binop.fixed
Normal file
320
src/test/ui/numeric/numeric-cast-binop.fixed
Normal file
@ -0,0 +1,320 @@
|
||||
// run-rustfix
|
||||
|
||||
// The `try_into` suggestion doesn't include this, but we do suggest it after applying it
|
||||
use std::convert::TryInto;
|
||||
|
||||
#[allow(unused_must_use)]
|
||||
fn main() {
|
||||
let x_usize: usize = 1;
|
||||
let x_u128: u128 = 2;
|
||||
let x_u64: u64 = 3;
|
||||
let x_u32: u32 = 4;
|
||||
let x_u16: u16 = 5;
|
||||
let x_u8: u8 = 6;
|
||||
let x_isize: isize = 7;
|
||||
let x_i64: i64 = 8;
|
||||
let x_i32: i32 = 9;
|
||||
let x_i16: i16 = 10;
|
||||
let x_i8: i8 = 11;
|
||||
let x_i128: i128 = 12;
|
||||
|
||||
/* u<->u */
|
||||
{
|
||||
u16::from(x_u8) > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
u32::from(x_u8) > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
u64::from(x_u8) > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
u128::from(x_u8) > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
usize::from(x_u8) > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u16 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
u32::from(x_u16) > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
u64::from(x_u16) > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
u128::from(x_u16) > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
usize::from(x_u16) > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u32 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_u16.into();
|
||||
//~^ ERROR mismatched types
|
||||
u64::from(x_u32) > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
u128::from(x_u32) > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u64 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_u16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_u32.into();
|
||||
//~^ ERROR mismatched types
|
||||
u128::from(x_u64) > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u128 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_u16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_u32.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_u64.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_usize > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
|
||||
/* i<->i */
|
||||
{
|
||||
i16::from(x_i8) > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
i32::from(x_i8) > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
i64::from(x_i8) > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_i8) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
isize::from(x_i8) > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i16 > x_i8.into();
|
||||
//~^ ERROR mismatched types
|
||||
i32::from(x_i16) > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
i64::from(x_i16) > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_i16) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
isize::from(x_i16) > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i32 > x_i8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_i16.into();
|
||||
//~^ ERROR mismatched types
|
||||
i64::from(x_i32) > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_i32) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i64 > x_i8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_i16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_i32.into();
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_i64) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i128 > x_i8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_i16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_i32.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_i64.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_isize > x_i8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
|
||||
/* u<->i */
|
||||
{
|
||||
x_u8 > x_i8.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
i16::from(x_u8) > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
i32::from(x_u8) > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
i64::from(x_u8) > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_u8) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
isize::from(x_u8) > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u16 > x_i8.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_i16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
i32::from(x_u16) > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
i64::from(x_u16) > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_u16) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u32 > x_i8.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_i16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_i32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
i64::from(x_u32) > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_u32) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u64 > x_i8.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_i16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_i32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_i64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
i128::from(x_u64) > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u128 > x_i8.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_usize > x_i8.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_isize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
|
||||
/* i<->u */
|
||||
{
|
||||
x_i8 > x_u8.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i16 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i32 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i64 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u32.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i128 > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u16.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u32.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u64.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_isize > x_u8.into();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u16.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u32.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u64.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u128.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_usize.try_into().unwrap();
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
}
|
||||
320
src/test/ui/numeric/numeric-cast-binop.rs
Normal file
320
src/test/ui/numeric/numeric-cast-binop.rs
Normal file
@ -0,0 +1,320 @@
|
||||
// run-rustfix
|
||||
|
||||
// The `try_into` suggestion doesn't include this, but we do suggest it after applying it
|
||||
use std::convert::TryInto;
|
||||
|
||||
#[allow(unused_must_use)]
|
||||
fn main() {
|
||||
let x_usize: usize = 1;
|
||||
let x_u128: u128 = 2;
|
||||
let x_u64: u64 = 3;
|
||||
let x_u32: u32 = 4;
|
||||
let x_u16: u16 = 5;
|
||||
let x_u8: u8 = 6;
|
||||
let x_isize: isize = 7;
|
||||
let x_i64: i64 = 8;
|
||||
let x_i32: i32 = 9;
|
||||
let x_i16: i16 = 10;
|
||||
let x_i8: i8 = 11;
|
||||
let x_i128: i128 = 12;
|
||||
|
||||
/* u<->u */
|
||||
{
|
||||
x_u8 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u16 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u32 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u64 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u128 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_usize > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
|
||||
/* i<->i */
|
||||
{
|
||||
x_i8 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i16 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i32 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i64 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i128 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_isize > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
|
||||
/* u<->i */
|
||||
{
|
||||
x_u8 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u8 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u16 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u16 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u32 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u32 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u64 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u64 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_u128 > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_u128 > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_usize > x_i8;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i16;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i32;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i64;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_i128;
|
||||
//~^ ERROR mismatched types
|
||||
x_usize > x_isize;
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
|
||||
/* i<->u */
|
||||
{
|
||||
x_i8 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i8 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i16 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i16 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i32 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i32 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i64 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i64 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_i128 > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_i128 > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
|
||||
x_isize > x_u8;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u16;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u32;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u64;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_u128;
|
||||
//~^ ERROR mismatched types
|
||||
x_isize > x_usize;
|
||||
//~^ ERROR mismatched types
|
||||
}
|
||||
}
|
||||
1385
src/test/ui/numeric/numeric-cast-binop.stderr
Normal file
1385
src/test/ui/numeric/numeric-cast-binop.stderr
Normal file
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user