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Delete the AST after lowering

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This commit is contained in:
Jonas Schievink 2015-12-25 17:17:45 +01:00
parent 93a655940d
commit 389e8e3b81
2 changed files with 13 additions and 3 deletions
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2
src/librustc/session/config.rs
View File

@ -622,6 +622,8 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
"force nonzeroing move optimization on"),
keep_mtwt_tables: bool = (false, parse_bool,
"don't clear the resolution tables after analysis"),
keep_ast: bool = (false, parse_bool,
"keep the AST after lowering it to HIR"),
}
pub fn default_lib_output() -> CrateType {

14
src/librustc_driver/driver.rs
View File

@ -144,6 +144,14 @@ pub fn compile_input(sess: Session,
"early lint checks",
|| lint::check_ast_crate(&sess, &expanded_crate));
let opt_crate = if sess.opts.debugging_opts.keep_ast ||
sess.opts.debugging_opts.save_analysis {
Some(&expanded_crate)
} else {
drop(expanded_crate);
None
};
phase_3_run_analysis_passes(&sess,
&cstore,
hir_map,
@ -157,7 +165,7 @@ pub fn compile_input(sess: Session,
CompileState::state_after_analysis(input,
&tcx.sess,
outdir,
&expanded_crate,
opt_crate,
tcx.map.krate(),
&analysis,
&mir_map,
@ -360,7 +368,7 @@ impl<'a, 'ast, 'tcx> CompileState<'a, 'ast, 'tcx> {
fn state_after_analysis(input: &'a Input,
session: &'a Session,
out_dir: &'a Option<PathBuf>,
krate: &'a ast::Crate,
krate: Option<&'a ast::Crate>,
hir_crate: &'a hir::Crate,
analysis: &'a ty::CrateAnalysis,
mir_map: &'a MirMap<'tcx>,
@ -372,7 +380,7 @@ impl<'a, 'ast, 'tcx> CompileState<'a, 'ast, 'tcx> {
analysis: Some(analysis),
mir_map: Some(mir_map),
tcx: Some(tcx),
krate: Some(krate),
krate: krate,
hir_crate: Some(hir_crate),
lcx: Some(lcx),
crate_name: Some(crate_name),