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authorbors <bors@rust-lang.org>2023-01-18 22:58:30 +0000
committerbors <bors@rust-lang.org>2023-01-18 22:58:30 +0000
commit8b11574ca07f95dd33861d145a43708c20cb4eb5 (patch)
treee01a6e2adbef96b60c5d06afcb9992c5e93a72cb /tests
parent333ee6c466972185973d5097f8b5fb0f9fb13fa5 (diff)
parenta8086cf9dfbe733f1172dfba816c8e65d3f35e76 (diff)
downloadrust-8b11574ca07f95dd33861d145a43708c20cb4eb5.tar.gz
rust-8b11574ca07f95dd33861d145a43708c20cb4eb5.zip
Auto merge of #107041 - Nilstrieb:back-to-being-clueless-whether-it-really-is-a-literal, r=compiler-errors
Revert "Improve heuristics whether `format_args` string is a source literal"

This reverts commit e6c02aad9345925cfed74f86b414c4d0715d381b (from #106195).

Keeps the code improvements from the PR and the test (as a known-bug).

Works around #106408 while a proper fix is discussed more thoroughly in #106505, as proposed by `@tmandry.`

Reopens #106191

r? compiler-errors
Diffstat (limited to 'tests')
-rw-r--r--tests/ui/fmt/auxiliary/format-string-proc-macro.rs12
-rw-r--r--tests/ui/fmt/indoc-issue-106408.rs9
-rw-r--r--tests/ui/fmt/respanned-literal-issue-106191.rs9
-rw-r--r--tests/ui/fmt/respanned-literal-issue-106191.stderr21
4 files changed, 30 insertions, 21 deletions
diff --git a/tests/ui/fmt/auxiliary/format-string-proc-macro.rs b/tests/ui/fmt/auxiliary/format-string-proc-macro.rs
index 539c8fb27b3..1b7ef93f41d 100644
--- a/tests/ui/fmt/auxiliary/format-string-proc-macro.rs
+++ b/tests/ui/fmt/auxiliary/format-string-proc-macro.rs
@@ -28,6 +28,7 @@ pub fn err_with_input_span(input: TokenStream) -> TokenStream {
     TokenStream::from(TokenTree::Literal(lit))
 }
 
+
 #[proc_macro]
 pub fn respan_to_invalid_format_literal(input: TokenStream) -> TokenStream {
     let mut s = Literal::string("{");
@@ -38,3 +39,14 @@ pub fn respan_to_invalid_format_literal(input: TokenStream) -> TokenStream {
         TokenTree::from(Group::new(Delimiter::Parenthesis, TokenTree::from(s).into())),
     ])
 }
+
+#[proc_macro]
+pub fn capture_a_with_prepended_space_preserve_span(input: TokenStream) -> TokenStream {
+    let mut s = Literal::string(" {a}");
+    s.set_span(input.into_iter().next().unwrap().span());
+    TokenStream::from_iter([
+        TokenTree::from(Ident::new("format", Span::call_site())),
+        TokenTree::from(Punct::new('!', Spacing::Alone)),
+        TokenTree::from(Group::new(Delimiter::Parenthesis, TokenTree::from(s).into())),
+    ])
+}
diff --git a/tests/ui/fmt/indoc-issue-106408.rs b/tests/ui/fmt/indoc-issue-106408.rs
new file mode 100644
index 00000000000..e4e3093b590
--- /dev/null
+++ b/tests/ui/fmt/indoc-issue-106408.rs
@@ -0,0 +1,9 @@
+// aux-build:format-string-proc-macro.rs
+// check-pass
+
+extern crate format_string_proc_macro;
+
+fn main() {
+    let a = 0;
+    format_string_proc_macro::capture_a_with_prepended_space_preserve_span!("{a}");
+}
diff --git a/tests/ui/fmt/respanned-literal-issue-106191.rs b/tests/ui/fmt/respanned-literal-issue-106191.rs
index 44642a10fc0..bb741c0ef93 100644
--- a/tests/ui/fmt/respanned-literal-issue-106191.rs
+++ b/tests/ui/fmt/respanned-literal-issue-106191.rs
@@ -1,10 +1,15 @@
 // aux-build:format-string-proc-macro.rs
+// check-fail
+// known-bug: #106191
+// unset-rustc-env:RUST_BACKTRACE
+// had to be reverted
+// error-pattern:internal compiler error
+// failure-status:101
+// dont-check-compiler-stderr
 
 extern crate format_string_proc_macro;
 
 fn main() {
     format_string_proc_macro::respan_to_invalid_format_literal!("¡");
-    //~^ ERROR invalid format string: expected `'}'` but string was terminated
     format_args!(r#concat!("¡        {"));
-    //~^ ERROR invalid format string: expected `'}'` but string was terminated
 }
diff --git a/tests/ui/fmt/respanned-literal-issue-106191.stderr b/tests/ui/fmt/respanned-literal-issue-106191.stderr
index 73a3af65a38..16717f42253 100644
--- a/tests/ui/fmt/respanned-literal-issue-106191.stderr
+++ b/tests/ui/fmt/respanned-literal-issue-106191.stderr
@@ -1,19 +1,2 @@
-error: invalid format string: expected `'}'` but string was terminated
-  --> $DIR/respanned-literal-issue-106191.rs:6:65
-   |
-LL |     format_string_proc_macro::respan_to_invalid_format_literal!("¡");
-   |                                                                 ^^^ expected `'}'` in format string
-   |
-   = note: if you intended to print `{`, you can escape it using `{{`
-
-error: invalid format string: expected `'}'` but string was terminated
-  --> $DIR/respanned-literal-issue-106191.rs:8:18
-   |
-LL |     format_args!(r#concat!("¡        {"));
-   |                  ^^^^^^^^^^^^^^^^^^^^^^^ expected `'}'` in format string
-   |
-   = note: if you intended to print `{`, you can escape it using `{{`
-   = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: aborting due to 2 previous errors
-
+                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  query stack during panic:
+end of query stack