librustc_driver2.loops.rs

#![crate_name = "rustc_driver"]
#![crate_type = "lib"]
#![unstable]

extern crate rustc;

#[macro_use]
extern crate syntax;

pub mod driver {
    use rustc::middle::ty;
    use syntax::ast;
    use syntax::ast_map;

    pub fn compile_input() {
        {
            let expanded_crate: ast::Crate = unimplemented!();

            let mut forest = ast_map::Forest::new(expanded_crate);
            let arenas = ty::CtxtArenas::new();
            let ast_map = assign_node_ids_and_map(&mut forest);


            let analysis = phase_3_run_analysis_passes(ast_map,
                                                       &arenas);

        };
    }
    pub fn assign_node_ids_and_map<'ast>(forest: &'ast mut ast_map::Forest)
     -> ast_map::Map<'ast> {
        loop  { }
    }
    pub fn phase_3_run_analysis_passes<'tcx>(
                                             ast_map: ast_map::Map<'tcx>,
                                             arenas:
                                                 &'tcx ty::CtxtArenas<'tcx>)
     -> ty::CrateAnalysis<'tcx> {
        loop  { }
    }
}

transcript

% CFG_LLVM_LINKAGE_FILE=/Users/fklock/Dev/Mozilla/rust-drop-lts-chkpt/objdir-dbg/x86_64-apple-darwin/rt/llvmdeps.rs DYLD_LIBRARY_PATH=/Users/fklock/Dev/Mozilla/rust-drop-lts-chkpt/objdir-dbg/x86_64-apple-darwin/stage1/lib:$DYLD_LIBRARY_PATH   x86_64-apple-darwin/stage1/bin/rustc --cfg stage1   --cfg debug -C prefer-dynamic --target=x86_64-apple-darwin  -D warnings -L "x86_64-apple-darwin/rt" -L "/Users/fklock/Dev/Mozilla/rust-drop-lts-chkpt/objdir-dbg/x86_64-apple-darwin/llvm/Release+Asserts/lib" -L ""   -C extra-filename=-4e7c5e5c /tmp/librustc_driver2.loops.rs
/tmp/librustc_driver2.loops.rs:25:57: 25:63 error: `arenas` does not live long enough
/tmp/librustc_driver2.loops.rs:25                                                        &arenas);
                                                                                          ^~~~~~
/tmp/librustc_driver2.loops.rs:19:66: 27:10 note: reference must be valid for the block suffix following statement 1 at 19:65...
/tmp/librustc_driver2.loops.rs:19             let mut forest = ast_map::Forest::new(expanded_crate);
/tmp/librustc_driver2.loops.rs:20             let arenas = ty::CtxtArenas::new();
/tmp/librustc_driver2.loops.rs:21             let ast_map = assign_node_ids_and_map(&mut forest);
/tmp/librustc_driver2.loops.rs:22 
/tmp/librustc_driver2.loops.rs:23 
/tmp/librustc_driver2.loops.rs:24             let analysis = phase_3_run_analysis_passes(ast_map,
                                  ...
/tmp/librustc_driver2.loops.rs:20:47: 27:10 note: ...but borrowed value is only valid for the block suffix following statement 2 at 20:46
/tmp/librustc_driver2.loops.rs:20             let arenas = ty::CtxtArenas::new();
/tmp/librustc_driver2.loops.rs:21             let ast_map = assign_node_ids_and_map(&mut forest);
/tmp/librustc_driver2.loops.rs:22 
/tmp/librustc_driver2.loops.rs:23 
/tmp/librustc_driver2.loops.rs:24             let analysis = phase_3_run_analysis_passes(ast_map,
/tmp/librustc_driver2.loops.rs:25                                                        &arenas);
                                  ...
error: aborting due to previous error