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ensure arguments are included in count mismatch span

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This commit is contained in:
Andy Russell 2020-09-23 22:43:32 -04:00
parent 95daa068f1
commit 14b2d16c5c
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GPG Key ID: BE2221033EDBC374
17 changed files with 239 additions and 88 deletions
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28
compiler/rustc_hir/src/hir.rs
View File

@ -2742,4 +2742,32 @@ impl<'hir> Node<'hir> {
_ => None,
}
}
pub fn hir_id(&self) -> Option<HirId> {
match self {
Node::Item(Item { hir_id, .. })
| Node::ForeignItem(ForeignItem { hir_id, .. })
| Node::TraitItem(TraitItem { hir_id, .. })
| Node::ImplItem(ImplItem { hir_id, .. })
| Node::Field(StructField { hir_id, .. })
| Node::AnonConst(AnonConst { hir_id, .. })
| Node::Expr(Expr { hir_id, .. })
| Node::Stmt(Stmt { hir_id, .. })
| Node::Ty(Ty { hir_id, .. })
| Node::Binding(Pat { hir_id, .. })
| Node::Pat(Pat { hir_id, .. })
| Node::Arm(Arm { hir_id, .. })
| Node::Block(Block { hir_id, .. })
| Node::Local(Local { hir_id, .. })
| Node::MacroDef(MacroDef { hir_id, .. })
| Node::Lifetime(Lifetime { hir_id, .. })
| Node::Param(Param { hir_id, .. })
| Node::GenericParam(GenericParam { hir_id, .. }) => Some(*hir_id),
Node::TraitRef(TraitRef { hir_ref_id, .. }) => Some(*hir_ref_id),
Node::PathSegment(PathSegment { hir_id, .. }) => *hir_id,
Node::Variant(Variant { id, .. }) => Some(*id),
Node::Ctor(variant) => variant.ctor_hir_id(),
Node::Crate(_) | Node::Visibility(_) => None,
}
}
}

8
compiler/rustc_typeck/src/check/callee.rs
View File

@ -285,10 +285,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
arg_exprs: &'tcx [hir::Expr<'tcx>],
expected: Expectation<'tcx>,
) -> Ty<'tcx> {
let (fn_sig, def_span) = match *callee_ty.kind() {
ty::FnDef(def_id, _) => {
(callee_ty.fn_sig(self.tcx), self.tcx.hir().span_if_local(def_id))
}
let (fn_sig, def_id) = match *callee_ty.kind() {
ty::FnDef(def_id, _) => (callee_ty.fn_sig(self.tcx), Some(def_id)),
ty::FnPtr(sig) => (sig, None),
ref t => {
let mut unit_variant = None;
@ -427,7 +425,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
arg_exprs,
fn_sig.c_variadic,
TupleArgumentsFlag::DontTupleArguments,
def_span,
def_id,
);
fn_sig.output()

27
compiler/rustc_typeck/src/check/fn_ctxt/checks.rs
View File

@ -19,7 +19,7 @@ use rustc_middle::ty::fold::TypeFoldable;
use rustc_middle::ty::{self, Ty};
use rustc_session::Session;
use rustc_span::symbol::{sym, Ident};
use rustc_span::{self, Span};
use rustc_span::{self, MultiSpan, Span};
use rustc_trait_selection::traits::{self, ObligationCauseCode};
use std::mem::replace;
@ -83,7 +83,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
args_no_rcvr,
method.sig.c_variadic,
tuple_arguments,
self.tcx.hir().span_if_local(method.def_id),
Some(method.def_id),
);
method.sig.output()
}
@ -99,7 +99,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
args: &'tcx [hir::Expr<'tcx>],
c_variadic: bool,
tuple_arguments: TupleArgumentsFlag,
def_span: Option<Span>,
def_id: Option<DefId>,
) {
let tcx = self.tcx;
// Grab the argument types, supplying fresh type variables
@ -172,9 +172,26 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
);
}
if let Some(def_s) = def_span.map(|sp| tcx.sess.source_map().guess_head_span(sp)) {
err.span_label(def_s, "defined here");
if let Some(def_id) = def_id {
if let Some(node) = tcx.hir().get_if_local(def_id) {
let mut spans: MultiSpan = node
.ident()
.map(|ident| ident.span)
.unwrap_or_else(|| tcx.hir().span(node.hir_id().unwrap()))
.into();
if let Some(id) = node.body_id() {
let body = tcx.hir().body(id);
for param in body.params {
spans.push_span_label(param.span, String::new());
}
}
let def_kind = tcx.def_kind(def_id);
err.span_note(spans, &format!("{} defined here", def_kind.descr(def_id)));
}
}
if sugg_unit {
let sugg_span = tcx.sess.source_map().end_point(expr.span);
// remove closing `)` from the span

9
src/test/ui/arg-count-mismatch.stderr
View File

@ -1,13 +1,16 @@
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/arg-count-mismatch.rs:5:28
|
LL | fn f(x: isize) { }
| -------------- defined here
LL |
LL | fn main() { let i: (); i = f(); }
| ^-- supplied 0 arguments
| |
| expected 1 argument
|
note: function defined here
--> $DIR/arg-count-mismatch.rs:3:4
|
LL | fn f(x: isize) { }
| ^ --------
error: aborting due to previous error

18
src/test/ui/c-variadic/variadic-ffi-1.stderr
View File

@ -7,24 +7,30 @@ LL | fn printf(_: *const u8, ...);
error[E0060]: this function takes at least 2 arguments but 0 arguments were supplied
--> $DIR/variadic-ffi-1.rs:17:9
|
LL | fn foo(f: isize, x: u8, ...);
| ----------------------------- defined here
...
LL | foo();
| ^^^-- supplied 0 arguments
| |
| expected at least 2 arguments
|
note: function defined here
--> $DIR/variadic-ffi-1.rs:10:8
|
LL | fn foo(f: isize, x: u8, ...);
| ^^^
error[E0060]: this function takes at least 2 arguments but 1 argument was supplied
--> $DIR/variadic-ffi-1.rs:18:9
|
LL | fn foo(f: isize, x: u8, ...);
| ----------------------------- defined here
...
LL | foo(1);
| ^^^ - supplied 1 argument
| |
| expected at least 2 arguments
|
note: function defined here
--> $DIR/variadic-ffi-1.rs:10:8
|
LL | fn foo(f: isize, x: u8, ...);
| ^^^
error[E0308]: mismatched types
--> $DIR/variadic-ffi-1.rs:20:56

9
src/test/ui/error-codes/E0060.stderr
View File

@ -1,13 +1,16 @@
error[E0060]: this function takes at least 1 argument but 0 arguments were supplied
--> $DIR/E0060.rs:6:14
|
LL | fn printf(_: *const u8, ...) -> u32;
| ------------------------------------ defined here
...
LL | unsafe { printf(); }
| ^^^^^^-- supplied 0 arguments
| |
| expected at least 1 argument
|
note: function defined here
--> $DIR/E0060.rs:2:8
|
LL | fn printf(_: *const u8, ...) -> u32;
| ^^^^^^
error: aborting due to previous error

18
src/test/ui/error-codes/E0061.stderr
View File

@ -1,24 +1,30 @@
error[E0061]: this function takes 2 arguments but 1 argument was supplied
--> $DIR/E0061.rs:6:5
|
LL | fn f(a: u16, b: &str) {}
| --------------------- defined here
...
LL | f(0);
| ^ - supplied 1 argument
| |
| expected 2 arguments
|
note: function defined here
--> $DIR/E0061.rs:1:4
|
LL | fn f(a: u16, b: &str) {}
| ^ ------ -------
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/E0061.rs:10:5
|
LL | fn f2(a: u16) {}
| ------------- defined here
...
LL | f2();
| ^^-- supplied 0 arguments
| |
| expected 1 argument
|
note: function defined here
--> $DIR/E0061.rs:3:4
|
LL | fn f2(a: u16) {}
| ^^ ------
error: aborting due to 2 previous errors

20
src/test/ui/hrtb/issue-58451.stderr
View File

@ -1,16 +1,16 @@
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/issue-58451.rs:12:9
|
LL | / fn f<I>(i: I)
LL | | where
LL | | I: IntoIterator,
LL | | I::Item: for<'a> Into<&'a ()>,
| |__________________________________- defined here
...
LL | f(&[f()]);
| ^-- supplied 0 arguments
| |
| expected 1 argument
LL | f(&[f()]);
| ^-- supplied 0 arguments
| |
| expected 1 argument
|
note: function defined here
--> $DIR/issue-58451.rs:5:4
|
LL | fn f<I>(i: I)
| ^ ----
error: aborting due to previous error

9
src/test/ui/issues/issue-18819.stderr
View File

@ -1,13 +1,16 @@
error[E0061]: this function takes 2 arguments but 1 argument was supplied
--> $DIR/issue-18819.rs:16:5
|
LL | fn print_x(_: &dyn Foo<Item=bool>, extra: &str) {
| ----------------------------------------------- defined here
...
LL | print_x(X);
| ^^^^^^^ - supplied 1 argument
| |
| expected 2 arguments
|
note: function defined here
--> $DIR/issue-18819.rs:11:4
|
LL | fn print_x(_: &dyn Foo<Item=bool>, extra: &str) {
| ^^^^^^^ ---------------------- -----------
error: aborting due to previous error

9
src/test/ui/issues/issue-26094.stderr
View File

@ -4,11 +4,14 @@ error[E0061]: this function takes 0 arguments but 1 argument was supplied
LL | $other(None)
| ---- supplied 1 argument
...
LL | fn some_function() {}
| ------------------ defined here
...
LL | some_macro!(some_function);
| ^^^^^^^^^^^^^ expected 0 arguments
|
note: function defined here
--> $DIR/issue-26094.rs:7:4
|
LL | fn some_function() {}
| ^^^^^^^^^^^^^
error: aborting due to previous error

9
src/test/ui/issues/issue-4935.stderr
View File

@ -1,13 +1,16 @@
error[E0061]: this function takes 1 argument but 2 arguments were supplied
--> $DIR/issue-4935.rs:5:13
|
LL | fn foo(a: usize) {}
| ---------------- defined here
LL |
LL | fn main() { foo(5, 6) }
| ^^^ - - supplied 2 arguments
| |
| expected 1 argument
|
note: function defined here
--> $DIR/issue-4935.rs:3:4
|
LL | fn foo(a: usize) {}
| ^^^ --------
error: aborting due to previous error

36
src/test/ui/methods/method-call-err-msg.stderr
View File

@ -1,35 +1,44 @@
error[E0061]: this function takes 0 arguments but 1 argument was supplied
--> $DIR/method-call-err-msg.rs:13:7
|
LL | fn zero(self) -> Foo { self }
| -------------------- defined here
...
LL | x.zero(0)
| ^^^^ - supplied 1 argument
| |
| expected 0 arguments
|
note: associated function defined here
--> $DIR/method-call-err-msg.rs:5:8
|
LL | fn zero(self) -> Foo { self }
| ^^^^ ----
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/method-call-err-msg.rs:14:7
|
LL | fn one(self, _: isize) -> Foo { self }
| ----------------------------- defined here
...
LL | .one()
| ^^^- supplied 0 arguments
| |
| expected 1 argument
|
note: associated function defined here
--> $DIR/method-call-err-msg.rs:6:8
|
LL | fn one(self, _: isize) -> Foo { self }
| ^^^ ---- --------
error[E0061]: this function takes 2 arguments but 1 argument was supplied
--> $DIR/method-call-err-msg.rs:15:7
|
LL | fn two(self, _: isize, _: isize) -> Foo { self }
| --------------------------------------- defined here
...
LL | .two(0);
| ^^^ - supplied 1 argument
| |
| expected 2 arguments
|
note: associated function defined here
--> $DIR/method-call-err-msg.rs:7:8
|
LL | fn two(self, _: isize, _: isize) -> Foo { self }
| ^^^ ---- -------- --------
error[E0599]: no method named `take` found for struct `Foo` in the current scope
--> $DIR/method-call-err-msg.rs:19:7
@ -53,13 +62,16 @@ LL | .take()
error[E0061]: this function takes 3 arguments but 0 arguments were supplied
--> $DIR/method-call-err-msg.rs:21:7
|
LL | fn three<T>(self, _: T, _: T, _: T) -> Foo { self }
| ------------------------------------------ defined here
...
LL | y.three::<usize>();
| ^^^^^--------- supplied 0 arguments
| |
| expected 3 arguments
|
note: associated function defined here
--> $DIR/method-call-err-msg.rs:8:8
|
LL | fn three<T>(self, _: T, _: T, _: T) -> Foo { self }
| ^^^^^ ---- ---- ---- ----
error: aborting due to 5 previous errors

19
src/test/ui/not-enough-arguments.rs
View File

@ -6,7 +6,26 @@ fn foo(a: isize, b: isize, c: isize, d:isize) {
panic!();
}
// Check that all arguments are shown in the error message, even if they're across multiple lines.
fn bar(
a: i32,
b: i32,
c: i32,
d: i32,
e: i32,
f: i32,
) {
println!("{}", a);
println!("{}", b);
println!("{}", c);
println!("{}", d);
println!("{}", e);
println!("{}", f);
}
fn main() {
foo(1, 2, 3);
//~^ ERROR this function takes 4 arguments but 3
bar(1, 2, 3);
//~^ ERROR this function takes 6 arguments but 3
}

39
src/test/ui/not-enough-arguments.stderr
View File

@ -1,14 +1,43 @@
error[E0061]: this function takes 4 arguments but 3 arguments were supplied
--> $DIR/not-enough-arguments.rs:10:3
--> $DIR/not-enough-arguments.rs:27:3
|
LL | fn foo(a: isize, b: isize, c: isize, d:isize) {
| --------------------------------------------- defined here
...
LL | foo(1, 2, 3);
| ^^^ - - - supplied 3 arguments
| |
| expected 4 arguments
|
note: function defined here
--> $DIR/not-enough-arguments.rs:5:4
|
LL | fn foo(a: isize, b: isize, c: isize, d:isize) {
| ^^^ -------- -------- -------- -------
error: aborting due to previous error
error[E0061]: this function takes 6 arguments but 3 arguments were supplied
--> $DIR/not-enough-arguments.rs:29:3
|
LL | bar(1, 2, 3);
| ^^^ - - - supplied 3 arguments
| |
| expected 6 arguments
|
note: function defined here
--> $DIR/not-enough-arguments.rs:10:4
|
LL | fn bar(
| ^^^
LL | a: i32,
| ------
LL | b: i32,
| ------
LL | c: i32,
| ------
LL | d: i32,
| ------
LL | e: i32,
| ------
LL | f: i32,
| ------
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0061`.

18
src/test/ui/span/issue-34264.stderr
View File

@ -53,13 +53,16 @@ LL | fn bar(_: x, y: usize) {}
error[E0061]: this function takes 2 arguments but 3 arguments were supplied
--> $DIR/issue-34264.rs:7:5
|
LL | fn foo(Option<i32>, String) {}
| --------------------------- defined here
...
LL | foo(Some(42), 2, "");
| ^^^ -------- - -- supplied 3 arguments
| |
| expected 2 arguments
|
note: function defined here
--> $DIR/issue-34264.rs:1:4
|
LL | fn foo(Option<i32>, String) {}
| ^^^ ----------- ------
error[E0308]: mismatched types
--> $DIR/issue-34264.rs:8:13
@ -70,13 +73,16 @@ LL | bar("", "");
error[E0061]: this function takes 2 arguments but 3 arguments were supplied
--> $DIR/issue-34264.rs:10:5
|
LL | fn bar(x, y: usize) {}
| ------------------- defined here
...
LL | bar(1, 2, 3);
| ^^^ - - - supplied 3 arguments
| |
| expected 2 arguments
|
note: function defined here
--> $DIR/issue-34264.rs:3:4
|
LL | fn bar(x, y: usize) {}
| ^^^ - --------
error: aborting due to 6 previous errors

42
src/test/ui/span/missing-unit-argument.stderr
View File

@ -12,34 +12,42 @@ LL | let _: Result<(), String> = Ok(());
error[E0061]: this function takes 2 arguments but 0 arguments were supplied
--> $DIR/missing-unit-argument.rs:12:5
|
LL | fn foo(():(), ():()) {}
| -------------------- defined here
...
LL | foo();
| ^^^-- supplied 0 arguments
| |
| expected 2 arguments
|
note: function defined here
--> $DIR/missing-unit-argument.rs:1:4
|
LL | fn foo(():(), ():()) {}
| ^^^ ----- -----
error[E0061]: this function takes 2 arguments but 1 argument was supplied
--> $DIR/missing-unit-argument.rs:13:5
|
LL | fn foo(():(), ():()) {}
| -------------------- defined here
...
LL | foo(());
| ^^^ -- supplied 1 argument
| |
| expected 2 arguments
|
note: function defined here
--> $DIR/missing-unit-argument.rs:1:4
|
LL | fn foo(():(), ():()) {}
| ^^^ ----- -----
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/missing-unit-argument.rs:14:5
|
LL | fn bar(():()) {}
| ------------- defined here
...
LL | bar();
| ^^^-- supplied 0 arguments
|
note: function defined here
--> $DIR/missing-unit-argument.rs:2:4
|
LL | fn bar(():()) {}
| ^^^ -----
help: expected the unit value `()`; create it with empty parentheses
|
LL | bar(());
@ -48,12 +56,14 @@ LL | bar(());
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/missing-unit-argument.rs:15:7
|
LL | fn baz(self, (): ()) { }
| -------------------- defined here
...
LL | S.baz();
| ^^^- supplied 0 arguments
|
note: associated function defined here
--> $DIR/missing-unit-argument.rs:6:8
|
LL | fn baz(self, (): ()) { }
| ^^^ ---- ------
help: expected the unit value `()`; create it with empty parentheses
|
LL | S.baz(());
@ -62,12 +72,14 @@ LL | S.baz(());
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/missing-unit-argument.rs:16:7
|
LL | fn generic<T>(self, _: T) { }
| ------------------------- defined here
...
LL | S.generic::<()>();
| ^^^^^^^------ supplied 0 arguments
|
note: associated function defined here
--> $DIR/missing-unit-argument.rs:7:8
|
LL | fn generic<T>(self, _: T) { }
| ^^^^^^^ ---- ----
help: expected the unit value `()`; create it with empty parentheses
|
LL | S.generic::<()>(());

9
src/test/ui/type-alias-enum-variants/enum-variant-priority-higher-than-other-inherent.stderr
View File

@ -1,13 +1,16 @@
error[E0061]: this function takes 1 argument but 0 arguments were supplied
--> $DIR/enum-variant-priority-higher-than-other-inherent.rs:21:5
|
LL | V(u8)
| ----- defined here
...
LL | <E>::V();
| ^^^^^^-- supplied 0 arguments
| |
| expected 1 argument
|
note: tuple variant defined here
--> $DIR/enum-variant-priority-higher-than-other-inherent.rs:5:5
|
LL | V(u8)
| ^^^^^
error[E0308]: mismatched types
--> $DIR/enum-variant-priority-higher-than-other-inherent.rs:22:17