rust@3c1c072 (original) (raw)

11 files changed

lines changed

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@@ -463,6 +463,7 @@ fn handle_explain(early_dcx: &EarlyDiagCtxt, registry: Registry, code: &str, col
463	463	// Allow "E0123" or "0123" form.
464	464	let upper_cased_code = code.to_ascii_uppercase();
465	465	if let Ok(code) = upper_cased_code.strip_prefix('E').unwrap_or(&upper_cased_code).parse::<u32>()
	466	+ && code <= ErrCode::MAX_AS_U32
466	467	&& let Ok(description) = registry.try_find_description(ErrCode::from_u32(code))
467	468	{
468	469	let mut is_in_code_block = false;

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@@ -0,0 +1,3 @@
	1	+// It's a valid error with no added explanation
	2	+//@ compile-flags: --explain E9999
	3	+//~? ERROR: E9999 is not a valid error code

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@@ -0,0 +1,2 @@
	1	+error: E9999 is not a valid error code
	2	+

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@@ -0,0 +1,2 @@
	1	+//@ compile-flags: --explain error_code
	2	+//~? ERROR: error_code is not a valid error code

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	1	+error: error_code is not a valid error code
	2	+

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@@ -0,0 +1,57 @@
	1	+An unresolved name was used.
	2	+
	3	+Erroneous code examples:
	4	+
	5	+```
	6	+something_that_doesnt_exist::foo;
	7	+// error: unresolved name `something_that_doesnt_exist::foo`
	8	+
	9	+// or:
	10	+
	11	+trait Foo {
	12	+ fn bar() {
	13	+ Self; // error: unresolved name `Self`
	14	+ }
	15	+}
	16	+
	17	+// or:
	18	+
	19	+let x = unknown_variable; // error: unresolved name `unknown_variable`
	20	+```
	21	+
	22	+Please verify that the name wasn't misspelled and ensure that the
	23	+identifier being referred to is valid for the given situation. Example:
	24	+
	25	+```
	26	+enum something_that_does_exist {
	27	+ Foo,
	28	+}
	29	+```
	30	+
	31	+Or:
	32	+
	33	+```
	34	+mod something_that_does_exist {
	35	+ pub static foo : i32 = 0i32;
	36	+}
	37	+
	38	+something_that_does_exist::foo; // ok!
	39	+```
	40	+
	41	+Or:
	42	+
	43	+```
	44	+let unknown_variable = 12u32;
	45	+let x = unknown_variable; // ok!
	46	+```
	47	+
	48	+If the item is not defined in the current module, it must be imported using a
	49	+`use` statement, like so:
	50	+
	51	+```
	52	+use foo::bar;
	53	+bar();
	54	+```
	55	+
	56	+If the item you are importing is not defined in some super-module of the
	57	+current module, then it must also be declared as public (e.g., `pub fn`).

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	1	+// Check that we don't crash on error codes exceeding our internal limit.
	2	+// issue: https://github.com/rust-lang/rust/issues/140647
	3	+//@ compile-flags: --explain E10000
	4	+//~? ERROR: E10000 is not a valid error code

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	1	+error: E10000 is not a valid error code
	2	+