clarified file names;
authorwenzelm
Wed, 17 Feb 2016 23:15:47 +0100
changeset 62355 00f7618a9f2b
parent 62354 fdd6989cc8a0
child 62356 e307a410f46c
clarified file names;
src/Pure/ML/exn_output.ML
src/Pure/ML/exn_output_polyml.ML
src/Pure/ML/exn_properties.ML
src/Pure/ML/exn_properties_polyml.ML
src/Pure/ML/ml_compiler.ML
src/Pure/ML/ml_compiler_polyml.ML
src/Pure/ROOT
src/Pure/ROOT.ML
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/ML/exn_output.ML	Wed Feb 17 23:15:47 2016 +0100
@@ -0,0 +1,24 @@
+(*  Title:      Pure/ML/exn_output.ML
+    Author:     Makarius
+
+Auxiliary operations for exception output.
+*)
+
+signature EXN_OUTPUT =
+sig
+  val position: exn -> Position.T
+  val pretty: exn -> Pretty.T
+end;
+
+structure Exn_Output: EXN_OUTPUT =
+struct
+
+fun position exn =
+  (case PolyML.exceptionLocation exn of
+    NONE => Position.none
+  | SOME loc => Exn_Properties.position_of loc);
+
+fun pretty (exn: exn) =
+  Pretty.from_ML (pretty_ml (PolyML.prettyRepresentation (exn, ML_Options.get_print_depth ())));
+
+end;
--- a/src/Pure/ML/exn_output_polyml.ML	Wed Feb 17 23:06:24 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,24 +0,0 @@
-(*  Title:      Pure/ML/exn_output_polyml.ML
-    Author:     Makarius
-
-Auxiliary operations for exception output -- Poly/ML version.
-*)
-
-signature EXN_OUTPUT =
-sig
-  val position: exn -> Position.T
-  val pretty: exn -> Pretty.T
-end;
-
-structure Exn_Output: EXN_OUTPUT =
-struct
-
-fun position exn =
-  (case PolyML.exceptionLocation exn of
-    NONE => Position.none
-  | SOME loc => Exn_Properties.position_of loc);
-
-fun pretty (exn: exn) =
-  Pretty.from_ML (pretty_ml (PolyML.prettyRepresentation (exn, ML_Options.get_print_depth ())));
-
-end;
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/ML/exn_properties.ML	Wed Feb 17 23:15:47 2016 +0100
@@ -0,0 +1,63 @@
+(*  Title:      Pure/ML/exn_properties.ML
+    Author:     Makarius
+
+Exception properties.
+*)
+
+signature EXN_PROPERTIES =
+sig
+  val position_of: PolyML.location -> Position.T
+  val get: exn -> Properties.T
+  val update: Properties.entry list -> exn -> exn
+end;
+
+structure Exn_Properties: EXN_PROPERTIES =
+struct
+
+(* source locations *)
+
+fun props_of (loc: PolyML.location) =
+  (case YXML.parse_body (#file loc) of
+    [] => []
+  | [XML.Text file] =>
+      if file = "Standard Basis" then []
+      else [(Markup.fileN, ml_standard_path file)]
+  | body => XML.Decode.properties body);
+
+fun position_of loc =
+  Position.make
+   {line = #startLine loc,
+    offset = #startPosition loc,
+    end_offset = #endPosition loc,
+    props = props_of loc};
+
+
+(* exception properties *)
+
+fun get exn =
+  (case PolyML.exceptionLocation exn of
+    NONE => []
+  | SOME loc => props_of loc);
+
+fun update entries exn =
+  let
+    val loc =
+      the_default {file = "", startLine = 0, endLine = 0, startPosition = 0, endPosition = 0}
+        (PolyML.exceptionLocation exn);
+    val props = props_of loc;
+    val props' = fold Properties.put entries props;
+  in
+    if props = props' then exn
+    else
+      let
+        val loc' =
+          {file = YXML.string_of_body (XML.Encode.properties props'),
+            startLine = #startLine loc, endLine = #endLine loc,
+            startPosition = #startPosition loc, endPosition = #endPosition loc};
+      in
+        uninterruptible (fn _ => fn () => PolyML.raiseWithLocation (exn, loc')) ()
+          handle exn' => exn'
+      end
+  end;
+
+end;
--- a/src/Pure/ML/exn_properties_polyml.ML	Wed Feb 17 23:06:24 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,64 +0,0 @@
-(*  Title:      Pure/ML/exn_properties_polyml.ML
-    Author:     Makarius
-
-Exception properties for Poly/ML.
-*)
-
-signature EXN_PROPERTIES =
-sig
-  val position_of: PolyML.location -> Position.T
-  val get: exn -> Properties.T
-  val update: Properties.entry list -> exn -> exn
-end;
-
-structure Exn_Properties: EXN_PROPERTIES =
-struct
-
-(* source locations *)
-
-fun props_of (loc: PolyML.location) =
-  (case YXML.parse_body (#file loc) of
-    [] => []
-  | [XML.Text file] =>
-      if file = "Standard Basis" then []
-      else [(Markup.fileN, ml_standard_path file)]
-  | body => XML.Decode.properties body);
-
-fun position_of loc =
-  Position.make
-   {line = #startLine loc,
-    offset = #startPosition loc,
-    end_offset = #endPosition loc,
-    props = props_of loc};
-
-
-(* exception properties *)
-
-fun get exn =
-  (case PolyML.exceptionLocation exn of
-    NONE => []
-  | SOME loc => props_of loc);
-
-fun update entries exn =
-  let
-    val loc =
-      the_default {file = "", startLine = 0, endLine = 0, startPosition = 0, endPosition = 0}
-        (PolyML.exceptionLocation exn);
-    val props = props_of loc;
-    val props' = fold Properties.put entries props;
-  in
-    if props = props' then exn
-    else
-      let
-        val loc' =
-          {file = YXML.string_of_body (XML.Encode.properties props'),
-            startLine = #startLine loc, endLine = #endLine loc,
-            startPosition = #startPosition loc, endPosition = #endPosition loc};
-      in
-        uninterruptible (fn _ => fn () => PolyML.raiseWithLocation (exn, loc')) ()
-          handle exn' => exn'
-      end
-  end;
-
-end;
-
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/ML/ml_compiler.ML	Wed Feb 17 23:15:47 2016 +0100
@@ -0,0 +1,288 @@
+(*  Title:      Pure/ML/ml_compiler.ML
+    Author:     Makarius
+
+Runtime compilation and evaluation.
+*)
+
+signature ML_COMPILER =
+sig
+  type flags =
+    {SML: bool, exchange: bool, redirect: bool, verbose: bool,
+      debug: bool option, writeln: string -> unit, warning: string -> unit}
+  val flags: flags
+  val verbose: bool -> flags -> flags
+  val eval: flags -> Position.T -> ML_Lex.token list -> unit
+end
+
+
+structure ML_Compiler: ML_COMPILER =
+struct
+
+(* flags *)
+
+type flags =
+  {SML: bool, exchange: bool, redirect: bool, verbose: bool,
+    debug: bool option, writeln: string -> unit, warning: string -> unit};
+
+val flags: flags =
+  {SML = false, exchange = false, redirect = false, verbose = false,
+    debug = NONE, writeln = writeln, warning = warning};
+
+fun verbose b (flags: flags) =
+  {SML = #SML flags, exchange = #exchange flags, redirect = #redirect flags,
+    verbose = b, debug = #debug flags, writeln = #writeln flags, warning = #warning flags};
+
+
+(* parse trees *)
+
+fun breakpoint_position loc =
+  let val pos = Position.reset_range (Exn_Properties.position_of loc) in
+    (case Position.offset_of pos of
+      NONE => pos
+    | SOME 1 => pos
+    | SOME j =>
+        Position.properties_of pos
+        |> Properties.put (Markup.offsetN, Markup.print_int (j - 1))
+        |> Position.of_properties)
+  end;
+
+fun report_parse_tree redirect depth space parse_tree =
+  let
+    val is_visible =
+      (case Context.thread_data () of
+        SOME context => Context_Position.is_visible_generic context
+      | NONE => true);
+    fun is_reported pos = is_visible andalso Position.is_reported pos;
+
+
+    (* syntax reports *)
+
+    fun reported_types loc types =
+      let val pos = Exn_Properties.position_of loc in
+        is_reported pos ?
+          let
+            val xml =
+              ML_Name_Space.displayTypeExpression (types, depth, space)
+              |> pretty_ml |> Pretty.from_ML |> Pretty.string_of
+              |> Output.output |> YXML.parse_body;
+          in cons (pos, fn () => Markup.ML_typing, fn () => YXML.string_of_body xml) end
+      end;
+
+    fun reported_entity kind loc decl =
+      let
+        val pos = Exn_Properties.position_of loc;
+        val def_pos = Exn_Properties.position_of decl;
+      in
+        (is_reported pos andalso pos <> def_pos) ?
+          let
+            fun markup () =
+              (Markup.entityN, (Markup.kindN, kind) :: Position.def_properties_of def_pos);
+          in cons (pos, markup, fn () => "") end
+      end;
+
+    fun reported_completions loc names =
+      let val pos = Exn_Properties.position_of loc in
+        if is_reported pos andalso not (null names) then
+          let
+            val completion = Completion.names pos (map (fn a => (a, ("ML", a))) names);
+            val xml = Completion.encode completion;
+          in cons (pos, fn () => Markup.completion, fn () => YXML.string_of_body xml) end
+        else I
+      end;
+
+    fun reported _ (PolyML.PTnextSibling tree) = reported_tree (tree ())
+      | reported _ (PolyML.PTfirstChild tree) = reported_tree (tree ())
+      | reported loc (PolyML.PTtype types) = reported_types loc types
+      | reported loc (PolyML.PTdeclaredAt decl) = reported_entity Markup.ML_defN loc decl
+      | reported loc (PolyML.PTopenedAt decl) = reported_entity Markup.ML_openN loc decl
+      | reported loc (PolyML.PTstructureAt decl) = reported_entity Markup.ML_structureN loc decl
+      | reported loc pt =
+          (case ML_Parse_Tree.completions pt of
+            SOME names => reported_completions loc names
+          | NONE => I)
+    and reported_tree (loc, props) = fold (reported loc) props;
+
+    val persistent_reports = reported_tree parse_tree [];
+
+    fun output () =
+      persistent_reports
+      |> map (fn (pos, markup, text) => Position.reported_text pos (markup ()) (text ()))
+      |> Output.report;
+    val _ =
+      if not (null persistent_reports) andalso redirect andalso Multithreading.enabled ()
+      then
+        Execution.print
+          {name = "ML_Compiler.report", pos = Position.thread_data (), pri = Task_Queue.urgent_pri}
+          output
+      else output ();
+
+
+    (* breakpoints *)
+
+    fun breakpoints _ (PolyML.PTnextSibling tree) = breakpoints_tree (tree ())
+      | breakpoints _ (PolyML.PTfirstChild tree) = breakpoints_tree (tree ())
+      | breakpoints loc pt =
+          (case ML_Parse_Tree.breakpoint pt of
+            SOME b =>
+              let val pos = breakpoint_position loc in
+                if is_reported pos then
+                  let val id = serial ();
+                  in cons ((pos, Markup.ML_breakpoint id), (id, (b, pos))) end
+                else I
+              end
+          | NONE => I)
+    and breakpoints_tree (loc, props) = fold (breakpoints loc) props;
+
+    val all_breakpoints = rev (breakpoints_tree parse_tree []);
+    val _ = Position.reports (map #1 all_breakpoints);
+    val _ =
+      if is_some (Context.thread_data ()) then
+        Context.>> (fold (ML_Env.add_breakpoint o #2) all_breakpoints)
+      else ();
+  in () end;
+
+
+(* eval ML source tokens *)
+
+fun eval (flags: flags) pos toks =
+  let
+    val _ = Secure.secure_mltext ();
+    val space = ML_Env.name_space {SML = #SML flags, exchange = #exchange flags};
+    val opt_context = Context.thread_data ();
+
+
+    (* input *)
+
+    val location_props = op ^ (YXML.output_markup (":", #props (Position.dest pos)));
+
+    val input_explode =
+      if #SML flags then String.explode
+      else maps (String.explode o Symbol.esc) o Symbol.explode;
+
+    val input_buffer =
+      Unsynchronized.ref (toks |> map (`(input_explode o ML_Lex.check_content_of)));
+
+    fun get () =
+      (case ! input_buffer of
+        (c :: cs, tok) :: rest => (input_buffer := (cs, tok) :: rest; SOME c)
+      | ([], _) :: rest => (input_buffer := rest; SOME #" ")
+      | [] => NONE);
+
+    fun get_pos () =
+      (case ! input_buffer of
+        (_ :: _, tok) :: _ => ML_Lex.pos_of tok
+      | ([], tok) :: _ => ML_Lex.end_pos_of tok
+      | [] => Position.none);
+
+
+    (* output *)
+
+    val writeln_buffer = Unsynchronized.ref Buffer.empty;
+    fun write s = Unsynchronized.change writeln_buffer (Buffer.add s);
+    fun output_writeln () = #writeln flags (trim_line (Buffer.content (! writeln_buffer)));
+
+    val warnings = Unsynchronized.ref ([]: string list);
+    fun warn msg = Unsynchronized.change warnings (cons msg);
+    fun output_warnings () = List.app (#warning flags) (rev (! warnings));
+
+    val error_buffer = Unsynchronized.ref Buffer.empty;
+    fun err msg = Unsynchronized.change error_buffer (Buffer.add msg #> Buffer.add "\n");
+    fun flush_error () = #writeln flags (trim_line (Buffer.content (! error_buffer)));
+    fun raise_error msg = error (trim_line (Buffer.content (Buffer.add msg (! error_buffer))));
+
+    fun message {message = msg, hard, location = loc, context = _} =
+      let
+        val pos = Exn_Properties.position_of loc;
+        val txt =
+          (if hard then "ML error" else "ML warning") ^ Position.here pos ^ ":\n" ^
+          Pretty.string_of (Pretty.from_ML (pretty_ml msg));
+      in if hard then err txt else warn txt end;
+
+
+    (* results *)
+
+    val depth = ML_Options.get_print_depth ();
+
+    fun apply_result {fixes, types, signatures, structures, functors, values} =
+      let
+        fun display disp x =
+          if depth > 0 then
+            (disp x |> pretty_ml |> Pretty.from_ML |> Pretty.string_of |> write; write "\n")
+          else ();
+
+        fun apply_fix (a, b) =
+          (#enterFix space (a, b); display ML_Name_Space.displayFix (a, b));
+        fun apply_type (a, b) =
+          (#enterType space (a, b); display ML_Name_Space.displayType (b, depth, space));
+        fun apply_sig (a, b) =
+          (#enterSig space (a, b); display ML_Name_Space.displaySig (b, depth, space));
+        fun apply_struct (a, b) =
+          (#enterStruct space (a, b); display ML_Name_Space.displayStruct (b, depth, space));
+        fun apply_funct (a, b) =
+          (#enterFunct space (a, b); display ML_Name_Space.displayFunct (b, depth, space));
+        fun apply_val (a, b) =
+          (#enterVal space (a, b); display ML_Name_Space.displayVal (b, depth, space));
+      in
+        List.app apply_fix fixes;
+        List.app apply_type types;
+        List.app apply_sig signatures;
+        List.app apply_struct structures;
+        List.app apply_funct functors;
+        List.app apply_val values
+      end;
+
+    exception STATIC_ERRORS of unit;
+
+    fun result_fun (phase1, phase2) () =
+     ((case phase1 of
+        NONE => ()
+      | SOME parse_tree => report_parse_tree (#redirect flags) depth space parse_tree);
+      (case phase2 of
+        NONE => raise STATIC_ERRORS ()
+      | SOME code =>
+          apply_result
+            ((code
+              |> Runtime.debugging opt_context
+              |> Runtime.toplevel_error (err o Runtime.exn_message)) ())));
+
+
+    (* compiler invocation *)
+
+    val debug =
+      (case #debug flags of
+        SOME debug => debug
+      | NONE => ML_Options.debugger_enabled opt_context);
+
+    val parameters =
+     [PolyML.Compiler.CPOutStream write,
+      PolyML.Compiler.CPNameSpace space,
+      PolyML.Compiler.CPErrorMessageProc message,
+      PolyML.Compiler.CPLineNo (the_default 0 o Position.line_of o get_pos),
+      PolyML.Compiler.CPLineOffset (the_default 0 o Position.offset_of o get_pos),
+      PolyML.Compiler.CPFileName location_props,
+      PolyML.Compiler.CPPrintDepth ML_Options.get_print_depth,
+      PolyML.Compiler.CPCompilerResultFun result_fun,
+      PolyML.Compiler.CPPrintInAlphabeticalOrder false] @
+     ML_Compiler_Parameters.debug debug;
+
+    val _ =
+      (while not (List.null (! input_buffer)) do
+        PolyML.compiler (get, parameters) ())
+      handle exn =>
+        if Exn.is_interrupt exn then reraise exn
+        else
+          let
+            val exn_msg =
+              (case exn of
+                STATIC_ERRORS () => ""
+              | Runtime.TOPLEVEL_ERROR => ""
+              | _ => "Exception- " ^ Pretty.string_of (Exn_Output.pretty exn) ^ " raised");
+            val _ = output_warnings ();
+            val _ = output_writeln ();
+          in raise_error exn_msg end;
+  in
+    if #verbose flags then (output_warnings (); flush_error (); output_writeln ())
+    else ()
+  end;
+
+end;
--- a/src/Pure/ML/ml_compiler_polyml.ML	Wed Feb 17 23:06:24 2016 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,288 +0,0 @@
-(*  Title:      Pure/ML/ml_compiler_polyml.ML
-    Author:     Makarius
-
-Runtime compilation and evaluation -- Poly/ML version.
-*)
-
-signature ML_COMPILER =
-sig
-  type flags =
-    {SML: bool, exchange: bool, redirect: bool, verbose: bool,
-      debug: bool option, writeln: string -> unit, warning: string -> unit}
-  val flags: flags
-  val verbose: bool -> flags -> flags
-  val eval: flags -> Position.T -> ML_Lex.token list -> unit
-end
-
-
-structure ML_Compiler: ML_COMPILER =
-struct
-
-(* flags *)
-
-type flags =
-  {SML: bool, exchange: bool, redirect: bool, verbose: bool,
-    debug: bool option, writeln: string -> unit, warning: string -> unit};
-
-val flags: flags =
-  {SML = false, exchange = false, redirect = false, verbose = false,
-    debug = NONE, writeln = writeln, warning = warning};
-
-fun verbose b (flags: flags) =
-  {SML = #SML flags, exchange = #exchange flags, redirect = #redirect flags,
-    verbose = b, debug = #debug flags, writeln = #writeln flags, warning = #warning flags};
-
-
-(* parse trees *)
-
-fun breakpoint_position loc =
-  let val pos = Position.reset_range (Exn_Properties.position_of loc) in
-    (case Position.offset_of pos of
-      NONE => pos
-    | SOME 1 => pos
-    | SOME j =>
-        Position.properties_of pos
-        |> Properties.put (Markup.offsetN, Markup.print_int (j - 1))
-        |> Position.of_properties)
-  end;
-
-fun report_parse_tree redirect depth space parse_tree =
-  let
-    val is_visible =
-      (case Context.thread_data () of
-        SOME context => Context_Position.is_visible_generic context
-      | NONE => true);
-    fun is_reported pos = is_visible andalso Position.is_reported pos;
-
-
-    (* syntax reports *)
-
-    fun reported_types loc types =
-      let val pos = Exn_Properties.position_of loc in
-        is_reported pos ?
-          let
-            val xml =
-              ML_Name_Space.displayTypeExpression (types, depth, space)
-              |> pretty_ml |> Pretty.from_ML |> Pretty.string_of
-              |> Output.output |> YXML.parse_body;
-          in cons (pos, fn () => Markup.ML_typing, fn () => YXML.string_of_body xml) end
-      end;
-
-    fun reported_entity kind loc decl =
-      let
-        val pos = Exn_Properties.position_of loc;
-        val def_pos = Exn_Properties.position_of decl;
-      in
-        (is_reported pos andalso pos <> def_pos) ?
-          let
-            fun markup () =
-              (Markup.entityN, (Markup.kindN, kind) :: Position.def_properties_of def_pos);
-          in cons (pos, markup, fn () => "") end
-      end;
-
-    fun reported_completions loc names =
-      let val pos = Exn_Properties.position_of loc in
-        if is_reported pos andalso not (null names) then
-          let
-            val completion = Completion.names pos (map (fn a => (a, ("ML", a))) names);
-            val xml = Completion.encode completion;
-          in cons (pos, fn () => Markup.completion, fn () => YXML.string_of_body xml) end
-        else I
-      end;
-
-    fun reported _ (PolyML.PTnextSibling tree) = reported_tree (tree ())
-      | reported _ (PolyML.PTfirstChild tree) = reported_tree (tree ())
-      | reported loc (PolyML.PTtype types) = reported_types loc types
-      | reported loc (PolyML.PTdeclaredAt decl) = reported_entity Markup.ML_defN loc decl
-      | reported loc (PolyML.PTopenedAt decl) = reported_entity Markup.ML_openN loc decl
-      | reported loc (PolyML.PTstructureAt decl) = reported_entity Markup.ML_structureN loc decl
-      | reported loc pt =
-          (case ML_Parse_Tree.completions pt of
-            SOME names => reported_completions loc names
-          | NONE => I)
-    and reported_tree (loc, props) = fold (reported loc) props;
-
-    val persistent_reports = reported_tree parse_tree [];
-
-    fun output () =
-      persistent_reports
-      |> map (fn (pos, markup, text) => Position.reported_text pos (markup ()) (text ()))
-      |> Output.report;
-    val _ =
-      if not (null persistent_reports) andalso redirect andalso Multithreading.enabled ()
-      then
-        Execution.print
-          {name = "ML_Compiler.report", pos = Position.thread_data (), pri = Task_Queue.urgent_pri}
-          output
-      else output ();
-
-
-    (* breakpoints *)
-
-    fun breakpoints _ (PolyML.PTnextSibling tree) = breakpoints_tree (tree ())
-      | breakpoints _ (PolyML.PTfirstChild tree) = breakpoints_tree (tree ())
-      | breakpoints loc pt =
-          (case ML_Parse_Tree.breakpoint pt of
-            SOME b =>
-              let val pos = breakpoint_position loc in
-                if is_reported pos then
-                  let val id = serial ();
-                  in cons ((pos, Markup.ML_breakpoint id), (id, (b, pos))) end
-                else I
-              end
-          | NONE => I)
-    and breakpoints_tree (loc, props) = fold (breakpoints loc) props;
-
-    val all_breakpoints = rev (breakpoints_tree parse_tree []);
-    val _ = Position.reports (map #1 all_breakpoints);
-    val _ =
-      if is_some (Context.thread_data ()) then
-        Context.>> (fold (ML_Env.add_breakpoint o #2) all_breakpoints)
-      else ();
-  in () end;
-
-
-(* eval ML source tokens *)
-
-fun eval (flags: flags) pos toks =
-  let
-    val _ = Secure.secure_mltext ();
-    val space = ML_Env.name_space {SML = #SML flags, exchange = #exchange flags};
-    val opt_context = Context.thread_data ();
-
-
-    (* input *)
-
-    val location_props = op ^ (YXML.output_markup (":", #props (Position.dest pos)));
-
-    val input_explode =
-      if #SML flags then String.explode
-      else maps (String.explode o Symbol.esc) o Symbol.explode;
-
-    val input_buffer =
-      Unsynchronized.ref (toks |> map (`(input_explode o ML_Lex.check_content_of)));
-
-    fun get () =
-      (case ! input_buffer of
-        (c :: cs, tok) :: rest => (input_buffer := (cs, tok) :: rest; SOME c)
-      | ([], _) :: rest => (input_buffer := rest; SOME #" ")
-      | [] => NONE);
-
-    fun get_pos () =
-      (case ! input_buffer of
-        (_ :: _, tok) :: _ => ML_Lex.pos_of tok
-      | ([], tok) :: _ => ML_Lex.end_pos_of tok
-      | [] => Position.none);
-
-
-    (* output *)
-
-    val writeln_buffer = Unsynchronized.ref Buffer.empty;
-    fun write s = Unsynchronized.change writeln_buffer (Buffer.add s);
-    fun output_writeln () = #writeln flags (trim_line (Buffer.content (! writeln_buffer)));
-
-    val warnings = Unsynchronized.ref ([]: string list);
-    fun warn msg = Unsynchronized.change warnings (cons msg);
-    fun output_warnings () = List.app (#warning flags) (rev (! warnings));
-
-    val error_buffer = Unsynchronized.ref Buffer.empty;
-    fun err msg = Unsynchronized.change error_buffer (Buffer.add msg #> Buffer.add "\n");
-    fun flush_error () = #writeln flags (trim_line (Buffer.content (! error_buffer)));
-    fun raise_error msg = error (trim_line (Buffer.content (Buffer.add msg (! error_buffer))));
-
-    fun message {message = msg, hard, location = loc, context = _} =
-      let
-        val pos = Exn_Properties.position_of loc;
-        val txt =
-          (if hard then "ML error" else "ML warning") ^ Position.here pos ^ ":\n" ^
-          Pretty.string_of (Pretty.from_ML (pretty_ml msg));
-      in if hard then err txt else warn txt end;
-
-
-    (* results *)
-
-    val depth = ML_Options.get_print_depth ();
-
-    fun apply_result {fixes, types, signatures, structures, functors, values} =
-      let
-        fun display disp x =
-          if depth > 0 then
-            (disp x |> pretty_ml |> Pretty.from_ML |> Pretty.string_of |> write; write "\n")
-          else ();
-
-        fun apply_fix (a, b) =
-          (#enterFix space (a, b); display ML_Name_Space.displayFix (a, b));
-        fun apply_type (a, b) =
-          (#enterType space (a, b); display ML_Name_Space.displayType (b, depth, space));
-        fun apply_sig (a, b) =
-          (#enterSig space (a, b); display ML_Name_Space.displaySig (b, depth, space));
-        fun apply_struct (a, b) =
-          (#enterStruct space (a, b); display ML_Name_Space.displayStruct (b, depth, space));
-        fun apply_funct (a, b) =
-          (#enterFunct space (a, b); display ML_Name_Space.displayFunct (b, depth, space));
-        fun apply_val (a, b) =
-          (#enterVal space (a, b); display ML_Name_Space.displayVal (b, depth, space));
-      in
-        List.app apply_fix fixes;
-        List.app apply_type types;
-        List.app apply_sig signatures;
-        List.app apply_struct structures;
-        List.app apply_funct functors;
-        List.app apply_val values
-      end;
-
-    exception STATIC_ERRORS of unit;
-
-    fun result_fun (phase1, phase2) () =
-     ((case phase1 of
-        NONE => ()
-      | SOME parse_tree => report_parse_tree (#redirect flags) depth space parse_tree);
-      (case phase2 of
-        NONE => raise STATIC_ERRORS ()
-      | SOME code =>
-          apply_result
-            ((code
-              |> Runtime.debugging opt_context
-              |> Runtime.toplevel_error (err o Runtime.exn_message)) ())));
-
-
-    (* compiler invocation *)
-
-    val debug =
-      (case #debug flags of
-        SOME debug => debug
-      | NONE => ML_Options.debugger_enabled opt_context);
-
-    val parameters =
-     [PolyML.Compiler.CPOutStream write,
-      PolyML.Compiler.CPNameSpace space,
-      PolyML.Compiler.CPErrorMessageProc message,
-      PolyML.Compiler.CPLineNo (the_default 0 o Position.line_of o get_pos),
-      PolyML.Compiler.CPLineOffset (the_default 0 o Position.offset_of o get_pos),
-      PolyML.Compiler.CPFileName location_props,
-      PolyML.Compiler.CPPrintDepth ML_Options.get_print_depth,
-      PolyML.Compiler.CPCompilerResultFun result_fun,
-      PolyML.Compiler.CPPrintInAlphabeticalOrder false] @
-     ML_Compiler_Parameters.debug debug;
-
-    val _ =
-      (while not (List.null (! input_buffer)) do
-        PolyML.compiler (get, parameters) ())
-      handle exn =>
-        if Exn.is_interrupt exn then reraise exn
-        else
-          let
-            val exn_msg =
-              (case exn of
-                STATIC_ERRORS () => ""
-              | Runtime.TOPLEVEL_ERROR => ""
-              | _ => "Exception- " ^ Pretty.string_of (Exn_Output.pretty exn) ^ " raised");
-            val _ = output_warnings ();
-            val _ = output_writeln ();
-          in raise_error exn_msg end;
-  in
-    if #verbose flags then (output_warnings (); flush_error (); output_writeln ())
-    else ()
-  end;
-
-end;
--- a/src/Pure/ROOT	Wed Feb 17 23:06:24 2016 +0100
+++ b/src/Pure/ROOT	Wed Feb 17 23:15:47 2016 +0100
@@ -163,11 +163,11 @@
     "Isar/token.ML"
     "Isar/toplevel.ML"
     "Isar/typedecl.ML"
-    "ML/exn_output_polyml.ML"
-    "ML/exn_properties_polyml.ML"
+    "ML/exn_output.ML"
+    "ML/exn_properties.ML"
     "ML/install_pp_polyml.ML"
     "ML/ml_antiquotation.ML"
-    "ML/ml_compiler_polyml.ML"
+    "ML/ml_compiler.ML"
     "ML/ml_context.ML"
     "ML/ml_env.ML"
     "ML/ml_file.ML"
--- a/src/Pure/ROOT.ML	Wed Feb 17 23:06:24 2016 +0100
+++ b/src/Pure/ROOT.ML	Wed Feb 17 23:15:47 2016 +0100
@@ -98,7 +98,7 @@
 
 (* concurrency within the ML runtime *)
 
-use "ML/exn_properties_polyml.ML";
+use "ML/exn_properties.ML";
 
 if ML_System.name = "polyml-5.5.0"
   orelse ML_System.name = "polyml-5.5.1"
@@ -200,11 +200,11 @@
 use "ML/ml_syntax.ML";
 use "ML/ml_env.ML";
 use "ML/ml_options.ML";
-use "ML/exn_output_polyml.ML";
+use "ML/exn_output.ML";
 use "ML/ml_options.ML";
 use "Isar/runtime.ML";
 use "PIDE/execution.ML";
-use "ML/ml_compiler_polyml.ML";
+use "ML/ml_compiler.ML";
 
 use "skip_proof.ML";
 use "goal.ML";