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Export the plugin registrar from proc-macro crates (and not much else)

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This commit is contained in:
Michael Woerister 2016-12-02 18:00:41 -05:00
parent ea9f61353a
commit 93da4f81bf
1 changed files with 9 additions and 1 deletions
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10
src/librustc_trans/back/symbol_export.rs
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@ -60,6 +60,14 @@ impl ExportedSymbols {
local_crate.push(("main".to_string(), SymbolExportLevel::C));
}
if let Some(id) = scx.sess().derive_registrar_fn.get() {
let svh = &scx.link_meta().crate_hash;
let def_id = scx.tcx().map.local_def_id(id);
let idx = def_id.index;
let registrar = scx.sess().generate_derive_registrar_symbol(svh, idx);
local_crate.push((registrar, SymbolExportLevel::C));
}
if scx.sess().crate_types.borrow().contains(&config::CrateTypeDylib) {
local_crate.push((scx.metadata_symbol_name(),
SymbolExportLevel::Rust));
@ -135,8 +143,8 @@ pub fn crate_export_threshold(crate_type: config::CrateType)
match crate_type {
config::CrateTypeExecutable |
config::CrateTypeStaticlib |
config::CrateTypeCdylib => SymbolExportLevel::C,
config::CrateTypeProcMacro |
config::CrateTypeCdylib => SymbolExportLevel::C,
config::CrateTypeRlib |
config::CrateTypeMetadata |
config::CrateTypeDylib => SymbolExportLevel::Rust,