rust: HIR dump and small refactor with macro expansion (#3147)gh-1338

Small refactoring for handling -Zunpretty calls:

- reuse options from main compiler invocation instead of crafting new ones.
- factor out common part.

Now also handles HIR output in a dedicated pane.
Still a lot of copy/pasting from the macro expansion.

fixes #2567

Signed-off-by: Marc Poulhiès <dkm@kataplop.net>

1 files changed, 7 insertions, 6 deletions

diff --git a/lib/compilers/rust.js b/lib/compilers/rust.js
index 622d914b0..84d0b156c 100644
--- a/lib/compilers/rust.js
+++ b/lib/compilers/rust.js
@@ -39,16 +39,17 @@ export class RustCompiler extends BaseCompiler {
         this.compiler.supportsIntel = true;
         this.compiler.supportsIrView = true;
         this.compiler.supportsRustMirView = true;
-        // Macro expansion through -Zunpretty=expanded is only available for Nightly
-        this.compiler.supportsRustMacroExpView = info.name === 'nightly' || info.semver === 'nightly';
+
+        const isNightly = info.name === 'nightly' || info.semver === 'nightly';
+        // Macro expansion (-Zunpretty=expanded) and HIR (-Zunpretty=hir-tree)
+        // are only available for Nightly
+        this.compiler.supportsRustMacroExpView = isNightly;
+        this.compiler.supportsRustHirView = isNightly;
+
         this.compiler.irArg = ['--emit', 'llvm-ir'];
         this.linker = this.compilerProps('linker');
     }
 
-    getRustMirOutputFilename(outputFilename) {
-        return outputFilename.replace(path.extname(outputFilename), '.mir');
-    }
-
     getSharedLibraryPathsAsArguments() {
         return [];
     }