diff options
| -rw-r--r-- | src/librustc_metadata/creader.rs | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/src/librustc_metadata/creader.rs b/src/librustc_metadata/creader.rs index dcb0fb73aa7..042252bc13e 100644 --- a/src/librustc_metadata/creader.rs +++ b/src/librustc_metadata/creader.rs @@ -20,7 +20,7 @@ use rustc::hir::map::Definitions; use rustc::hir::def_id::LOCAL_CRATE; use std::ops::Deref; -use std::path::PathBuf; +use std::path::{Path, PathBuf}; use std::{cmp, fs}; use syntax::ast; @@ -229,13 +229,14 @@ impl<'a> CrateLoader<'a> { let dependencies: Vec<CrateNum> = cnum_map.iter().cloned().collect(); let raw_proc_macros = crate_root.proc_macro_data.map(|_| { - if self.sess.opts.debugging_opts.dual_proc_macros { - let host_lib = host_lib.as_ref().unwrap(); - self.dlsym_proc_macros(host_lib.dylib.as_ref().map(|p| p.0.clone()), - &host_lib.metadata.get_root(), span) - } else { - self.dlsym_proc_macros(dylib.clone().map(|p| p.0), &crate_root, span) - } + let temp_root; + let (dlsym_dylib, dlsym_root) = match &host_lib { + Some(host_lib) => + (&host_lib.dylib, { temp_root = host_lib.metadata.get_root(); &temp_root }), + None => (&dylib, &crate_root), + }; + let dlsym_dylib = dlsym_dylib.as_ref().expect("no dylib for a proc-macro crate"); + self.dlsym_proc_macros(&dlsym_dylib.0, dlsym_root.disambiguator, span) }); let interpret_alloc_index: Vec<u32> = crate_root.interpret_alloc_index @@ -567,17 +568,13 @@ impl<'a> CrateLoader<'a> { } fn dlsym_proc_macros(&self, - dylib: Option<PathBuf>, - root: &CrateRoot<'_>, + path: &Path, + disambiguator: CrateDisambiguator, span: Span ) -> &'static [ProcMacro] { use std::env; use crate::dynamic_lib::DynamicLibrary; - let path = match dylib { - Some(dylib) => dylib, - None => span_bug!(span, "proc-macro crate not dylib"), - }; // Make sure the path contains a / or the linker will search for it. let path = env::current_dir().unwrap().join(path); let lib = match DynamicLibrary::open(Some(&path)) { @@ -585,7 +582,7 @@ impl<'a> CrateLoader<'a> { Err(err) => self.sess.span_fatal(span, &err), }; - let sym = self.sess.generate_proc_macro_decls_symbol(root.disambiguator); + let sym = self.sess.generate_proc_macro_decls_symbol(disambiguator); let decls = unsafe { let sym = match lib.symbol(&sym) { Ok(f) => f, |