rollup merge of #20258: sanxiyn/show-span-2

[rust.git] / src / librustc / session / config.rs

diff --git a/src/librustc/session/config.rs b/src/librustc/session/config.rs
index 1480ff016b53ddbed73e5bead8c540f6fa8eec9d..138f648049c73f748e6937474f7e94ff38054148 100644 (file)
--- a/src/librustc/session/config.rs
+++ b/src/librustc/session/config.rs
@@ -105,6 +105,7 @@ pub struct Options {
     pub prints: Vec<PrintRequest>,
     pub cg: CodegenOptions,
     pub color: ColorConfig,
+    pub show_span: Option<String>,
     pub externs: HashMap<String, Vec<String>>,
     pub crate_name: Option<String>,
     /// An optional name to use as the crate for std during std injection,
@@ -211,6 +212,7 @@ pub fn basic_options() -> Options {
         prints: Vec::new(),
         cg: basic_codegen_options(),
         color: Auto,
+        show_span: None,
         externs: HashMap::new(),
         crate_name: None,
         alt_std_name: None,
@@ -259,7 +261,6 @@ macro_rules! debugging_opts {
         BORROWCK_STATS,
         NO_LANDING_PADS,
         DEBUG_LLVM,
-        SHOW_SPAN,
         COUNT_TYPE_SIZES,
         META_STATS,
         GC,
@@ -299,7 +300,6 @@ pub fn debugging_opts_map() -> Vec<(&'static str, &'static str, u64)> {
      ("no-landing-pads", "omit landing pads for unwinding",
       NO_LANDING_PADS),
      ("debug-llvm", "enable debug output from LLVM", DEBUG_LLVM),
-     ("show-span", "show spans for compiler debugging", SHOW_SPAN),
      ("count-type-sizes", "count the sizes of aggregate types",
       COUNT_TYPE_SIZES),
      ("meta-stats", "gather metadata statistics", META_STATS),
@@ -754,7 +754,7 @@ pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> {
                  "[asm|llvm-bc|llvm-ir|obj|link|dep-info]"),
         opt::multi("", "print", "Comma separated list of compiler information to \
                                print on stdout",
-                 "[crate-name|output-file-names|sysroot]"),
+                 "[crate-name|file-names|sysroot]"),
         opt::flag("g",  "",  "Equivalent to -C debuginfo=2"),
         opt::flag("O", "", "Equivalent to -C opt-level=2"),
         opt::opt("o", "", "Write output to <filename>", "FILENAME"),
@@ -823,6 +823,7 @@ pub fn rustc_optgroups() -> Vec<RustcOptGroup> {
                       `flowgraph=<nodeid>` (graphviz formatted flowgraph for node), or
                       `everybody_loops` (all function bodies replaced with `loop {}`).",
                      "TYPE"),
+        opt::opt_u("", "show-span", "Show spans for compiler debugging", "expr|pat|ty"),
         opt::flagopt("", "dep-info",
                  "Output dependency info to <filename> after compiling, \
                   in a format suitable for use by Makefiles", "FILENAME"),
@@ -1114,8 +1115,8 @@ pub fn build_session_options(matches: &getopts::Matches) -> Options {
             None => early_error("--extern value must be of the format `foo=bar`"),
         };
 
-        match externs.entry(name.to_string()) {
-            Vacant(entry) => { entry.set(vec![location.to_string()]); },
+        match externs.entry(&name.to_string()) {
+            Vacant(entry) => { entry.insert(vec![location.to_string()]); },
             Occupied(mut entry) => { entry.get_mut().push(location.to_string()); },
         }
     }
@@ -1143,6 +1144,7 @@ pub fn build_session_options(matches: &getopts::Matches) -> Options {
         prints: prints,
         cg: cg,
         color: color,
+        show_span: None,
         externs: externs,
         crate_name: crate_name,
         alt_std_name: None,