Stabilize PATH option for --print KIND=PATH

Description of the `PATH` option: > A filepath may optionally be specified for each requested information > kind, in the format `--print KIND=PATH`, just like for `--emit`. When > a path is specified, information will be written there instead of to > stdout.
rust-lang · Sep 7, 2023 · caf6ce5 · caf6ce5
1 parent bf1e3f3
commit caf6ce5
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Showing 8 changed files with 8 additions and 34 deletions.
diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
@@ -2160,12 +2160,6 @@ fn collect_print_requests(
     prints.extend(matches.opt_strs("print").into_iter().map(|req| {
         let (req, out) = split_out_file_name(&req);
 
-        if out.is_some() && !unstable_opts.unstable_options {
-            handler.early_error(
-                "the `-Z unstable-options` flag must also be passed to \
-                 enable the path print option",
-            );
-        }
         let kind = match PRINT_KINDS.iter().find(|&&(name, _)| name == req) {
             Some((_, PrintKind::TargetSpec)) => {
                 if unstable_opts.unstable_options {

diff --git a/src/doc/rustc/src/command-line-arguments.md b/src/doc/rustc/src/command-line-arguments.md
@@ -260,6 +260,10 @@ The valid types of print values are:
   This returns rustc's minimum supported deployment target if no `*_DEPLOYMENT_TARGET` variable
   is present in the environment, or otherwise returns the variable's parsed value.
 
+A filepath may optionally be specified for each requested information kind, in
+the format `--print KIND=PATH`, just like for `--emit`. When a path is
+specified, information will be written there instead of to stdout.
+
 [conditional compilation]: ../reference/conditional-compilation.html
 [deployment target]: https://developer.apple.com/library/archive/documentation/DeveloperTools/Conceptual/cross_development/Configuring/configuring.html
 

diff --git a/src/doc/unstable-book/src/compiler-flags/path-options.md b/src/doc/unstable-book/src/compiler-flags/path-options.md
diff --git a/tests/run-make/print-cfg/Makefile b/tests/run-make/print-cfg/Makefile
@@ -13,19 +13,19 @@ all: default output_to_file
 
 output_to_file:
 	# Backend-independent, printed by rustc_driver_impl/src/lib.rs
-	$(RUSTC) --target x86_64-pc-windows-gnu --print cfg=$(TMPDIR)/cfg.txt -Z unstable-options
+	$(RUSTC) --target x86_64-pc-windows-gnu --print cfg=$(TMPDIR)/cfg.txt
 	$(CGREP) windows < $(TMPDIR)/cfg.txt
 
 	# Printed from CodegenBackend trait impl in rustc_codegen_llvm/src/lib.rs
-	$(RUSTC) --print relocation-models=$(TMPDIR)/relocation-models.txt -Z unstable-options
+	$(RUSTC) --print relocation-models=$(TMPDIR)/relocation-models.txt
 	$(CGREP) dynamic-no-pic < $(TMPDIR)/relocation-models.txt
 
 	# Printed by compiler/rustc_codegen_llvm/src/llvm_util.rs
-	$(RUSTC) --target wasm32-unknown-unknown --print target-features=$(TMPDIR)/target-features.txt -Z unstable-options
+	$(RUSTC) --target wasm32-unknown-unknown --print target-features=$(TMPDIR)/target-features.txt
 	$(CGREP) reference-types < $(TMPDIR)/target-features.txt
 
 	# Printed by C++ code in rustc_llvm/llvm-wrapper/PassWrapper.cpp
-	$(RUSTC) --target wasm32-unknown-unknown --print target-cpus=$(TMPDIR)/target-cpus.txt -Z unstable-options
+	$(RUSTC) --target wasm32-unknown-unknown --print target-cpus=$(TMPDIR)/target-cpus.txt
 	$(CGREP) generic < $(TMPDIR)/target-cpus.txt
 
 ifdef IS_WINDOWS

diff --git a/tests/ui/feature-gates/print-with-path.cfg.stderr b/tests/ui/feature-gates/print-with-path.cfg.stderr
diff --git a/tests/ui/feature-gates/print-with-path.rs b/tests/ui/feature-gates/print-with-path.rs
diff --git a/tests/ui/feature-gates/print-with-path.target-cpus.stderr b/tests/ui/feature-gates/print-with-path.target-cpus.stderr
diff --git a/tests/ui/feature-gates/print-with-path.target-features.stderr b/tests/ui/feature-gates/print-with-path.target-features.stderr