not-enough-arguments

Author: Kivooeo

tests/ui/fn/fn-arg-count-mismatch-diagnostics.rs

@@ -1,15 +1,15 @@
+//! Ensure clean diagnostics for argument count mismatches without unrelated errors.
+//!
+//! `delegate!` part related: <https://github.com/rust-lang/rust/pull/140591>
+
 //@ aux-build: delegate_macro.rs
 extern crate delegate_macro;
 use delegate_macro::delegate;
 
-// Check that the only error msg we report is the
-// mismatch between the # of params, and not other
-// unrelated errors.
 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);
@@ -37,6 +37,7 @@ struct Bar;
 
 impl Bar {
     fn foo(a: u8, b: u8) {}
+
     fn bar() {
         delegate_local!(foo);
         delegate!(foo);

tests/ui/fn/fn-arg-count-mismatch-diagnostics.stderr

@@ -1,5 +1,5 @@
 error[E0061]: this function takes 2 arguments but 1 argument was supplied
-  --> $DIR/not-enough-arguments.rs:24:9
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:24:9
    |
 LL |         <Self>::$method(8)
    |         ^^^^^^^^^^^^^^^--- argument #2 of type `u8` is missing
@@ -8,7 +8,7 @@ LL |         delegate_local!(foo);
    |         -------------------- in this macro invocation
    |
 note: associated function defined here
-  --> $DIR/not-enough-arguments.rs:39:8
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:39:8
    |
 LL |     fn foo(a: u8, b: u8) {}
    |        ^^^        -----
@@ -19,20 +19,20 @@ LL |         <Self>::$method(8, /* u8 */)
    |                          ++++++++++
 
 error[E0061]: this function takes 2 arguments but 1 argument was supplied
-  --> $DIR/not-enough-arguments.rs:42:9
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:43:9
    |
 LL |         delegate!(foo);
    |         ^^^^^^^^^^^^^^ argument #2 of type `u8` is missing
    |
 note: associated function defined here
-  --> $DIR/not-enough-arguments.rs:39:8
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:39:8
    |
 LL |     fn foo(a: u8, b: u8) {}
    |        ^^^        -----
    = note: this error originates in the macro `delegate` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0061]: this function takes 2 arguments but 1 argument was supplied
-  --> $DIR/not-enough-arguments.rs:31:9
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:31:9
    |
 LL |         <$from>::$method(8)
    |         ^^^^^^^^^^^^^^^^--- argument #2 of type `u8` is missing
@@ -41,7 +41,7 @@ LL |         delegate_from!(Bar, foo);
    |         ------------------------ in this macro invocation
    |
 note: associated function defined here
-  --> $DIR/not-enough-arguments.rs:39:8
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:39:8
    |
 LL |     fn foo(a: u8, b: u8) {}
    |        ^^^        -----
@@ -52,13 +52,13 @@ LL |         <$from>::$method(8, /* u8 */)
    |                           ++++++++++
 
 error[E0061]: this function takes 4 arguments but 3 arguments were supplied
-  --> $DIR/not-enough-arguments.rs:49:5
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:50:5
    |
 LL |     foo(1, 2, 3);
    |     ^^^--------- argument #4 of type `isize` is missing
    |
 note: function defined here
-  --> $DIR/not-enough-arguments.rs:8:4
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:9:4
    |
 LL | fn foo(a: isize, b: isize, c: isize, d: isize) {
    |    ^^^                               --------
@@ -68,13 +68,13 @@ LL |     foo(1, 2, 3, /* isize */);
    |                +++++++++++++
 
 error[E0061]: this function takes 6 arguments but 3 arguments were supplied
-  --> $DIR/not-enough-arguments.rs:51:5
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:52:5
    |
 LL |     bar(1, 2, 3);
    |     ^^^--------- three arguments of type `i32`, `i32`, and `i32` are missing
    |
 note: function defined here
-  --> $DIR/not-enough-arguments.rs:13:4
+  --> $DIR/fn-arg-count-mismatch-diagnostics.rs:13:4
    |
 LL | fn bar(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32) {
    |    ^^^                         ------  ------  ------