From 96e580a653df08d1eff72409bb13a04f3cb3a79a Mon Sep 17 00:00:00 2001
From: Leonardo de Moura <leonardo@microsoft.com>
Date: Thu, 11 Mar 2021 09:19:49 -0800
Subject: [PATCH] chore: update stage0

---
 stage0/src/Lean/Elab/BuiltinNotation.lean |  12 +
 stage0/stdlib/Lean/Elab/BuiltinNotation.c | 340 ++++++++++++++++++++++
 2 files changed, 352 insertions(+)

diff --git a/stage0/src/Lean/Elab/BuiltinNotation.lean b/stage0/src/Lean/Elab/BuiltinNotation.lean
index 0256dbdb5c..7522cac142 100644
--- a/stage0/src/Lean/Elab/BuiltinNotation.lean
+++ b/stage0/src/Lean/Elab/BuiltinNotation.lean
@@ -78,6 +78,12 @@ private def elabParserMacroAux (prec : Syntax) (e : Syntax) : TermElabM Syntax :
   | `(parser! : $prec $e) => elabParserMacroAux prec e
   | _                     => throwUnsupportedSyntax
 
+@[builtinTermElab «leading_parser»] def elabLeadingParserMacro : TermElab :=
+  adaptExpander fun stx => match stx with
+  | `(leading_parser $e)         => elabParserMacroAux (quote Parser.maxPrec) e
+  | `(leading_parser : $prec $e) => elabParserMacroAux prec e
+  | _                            => throwUnsupportedSyntax
+
 private def elabTParserMacroAux (prec : Syntax) (e : Syntax) : TermElabM Syntax := do
   let declName? ← getDeclName?
   match declName? with
@@ -90,6 +96,12 @@ private def elabTParserMacroAux (prec : Syntax) (e : Syntax) : TermElabM Syntax
   | `(tparser! : $prec $e) => elabTParserMacroAux prec e
   | _                      => throwUnsupportedSyntax
 
+@[builtinTermElab «trailing_parser»] def elabTrailingParserMacro : TermElab :=
+  adaptExpander fun stx => match stx with
+  | `(trailing_parser $e)         => elabTParserMacroAux (quote Parser.maxPrec) e
+  | `(trailing_parser : $prec $e) => elabTParserMacroAux prec e
+  | _                             => throwUnsupportedSyntax
+
 @[builtinTermElab panic] def elabPanic : TermElab := fun stx expectedType? => do
   let arg := stx[1]
   let pos ← getRefPosition
diff --git a/stage0/stdlib/Lean/Elab/BuiltinNotation.c b/stage0/stdlib/Lean/Elab/BuiltinNotation.c
index c43a1e9150..42cf4813f0 100644
--- a/stage0/stdlib/Lean/Elab/BuiltinNotation.c
+++ b/stage0/stdlib/Lean/Elab/BuiltinNotation.c
@@ -65,6 +65,7 @@ lean_object* l_Lean_Elab_Term_elabSorry___closed__10;
 extern lean_object* l_Lean_Parser_Term_anonymousCtor___elambda__1___closed__2;
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__12;
 extern lean_object* l_Array_empty___closed__1;
+lean_object* l_Lean_Elab_Term_elabLeadingParserMacro(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_expandAssert_match__1(lean_object*);
 lean_object* lean_environment_find(lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_expandEmptyC___closed__8;
@@ -86,6 +87,7 @@ extern lean_object* l_Lean_Parser_Term_parser_x21___elambda__1___closed__2;
 lean_object* l___regBuiltin_Lean_Elab_Term_expandAssert___closed__2;
 lean_object* l_Lean_Elab_Term_expandEmptyC___closed__1;
 lean_object* l_Lean_Elab_Term_elabParen___closed__3;
+extern lean_object* l_Lean_Parser_Term_leading__parser___elambda__1___closed__2;
 lean_object* lean_expr_instantiate1(lean_object*, lean_object*);
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux_match__1___rarg(lean_object*, lean_object*, lean_object*);
 lean_object* lean_array_push(lean_object*, lean_object*);
@@ -113,6 +115,7 @@ extern lean_object* l_myMacro____x40_Init_Notation___hyg_15387____closed__9;
 lean_object* l_Lean_Elab_Term_expandDbgTrace___closed__1;
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__39;
 lean_object* l_Lean_Elab_Term_elabAnonymousCtor_match__2___rarg(lean_object*, lean_object*, lean_object*);
+lean_object* l_Lean_Elab_Term_elabTrailingParserMacro___closed__1;
 extern lean_object* l_Lean_Meta_assert___closed__1;
 lean_object* l_Lean_Elab_Term_elabParserMacro___lambda__1___closed__2;
 lean_object* lean_string_utf8_byte_size(lean_object*);
@@ -135,6 +138,7 @@ lean_object* l_Lean_MonadRef_mkInfoFromRefPos___at_myMacro____x40_Init_Notation_
 lean_object* l_Lean_Elab_Term_ensureHasType(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_elabSubst___lambda__5___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__16;
+lean_object* l_Lean_Elab_Term_elabLeadingParserMacro___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_expandAssert(lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Name_toStringWithSep(lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_elabSubst___closed__3;
@@ -188,6 +192,7 @@ lean_object* l_Lean_Elab_Term_expandShow___boxed(lean_object*, lean_object*, lea
 lean_object* l_Lean_Elab_throwUnsupportedSyntax___at___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabCDot___spec__3(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_Lean_instQuoteProd___rarg___closed__2;
 lean_object* l_Lean_Elab_Term_expandDbgTrace(lean_object*, lean_object*, lean_object*);
+lean_object* l_Lean_Elab_Term_elabTrailingParserMacro(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_mkPairs_loop___closed__1;
 extern lean_object* l_myMacro____x40_Init_Notation___hyg_13868____closed__9;
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux___closed__10;
@@ -237,6 +242,7 @@ lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabCDot(le
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux_match__1(lean_object*);
 lean_object* l_Lean_Elab_addMacroStack___at_Lean_Elab_Term_instAddErrorMessageContextTermElabM___spec__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l___regBuiltin_Lean_Elab_Term_elabParen___closed__1;
+lean_object* l_Lean_Elab_Term_elabLeadingParserMacro___closed__1;
 lean_object* l_Lean_Elab_Term_elabParen___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_Lean_Parser_maxPrec;
 lean_object* l_Lean_Elab_Term_elabSubst___lambda__4(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
@@ -255,6 +261,7 @@ lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserM
 lean_object* l_Lean_Elab_Term_elabAnonymousCtor___closed__3;
 lean_object* l___private_Init_Meta_0__Lean_quoteName(lean_object*);
 lean_object* l_Lean_Syntax_mkStrLit(lean_object*, lean_object*);
+lean_object* l_Lean_Elab_Term_elabTrailingParserMacro___lambda__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_Lean_Parser_Term_have___elambda__1___closed__1;
 extern lean_object* l_Lean_instToExprUnit___lambda__1___closed__3;
 lean_object* l_Lean_FileMap_toPosition(lean_object*, lean_object*);
@@ -262,6 +269,7 @@ lean_object* l___regBuiltin_Lean_Elab_Term_expandDbgTrace___closed__1;
 lean_object* l_Lean_MonadRef_mkInfoFromRefPos___at___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_expandCDot___spec__2___boxed(lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_elabSubst_match__1(lean_object*);
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__6;
+lean_object* l_Lean_Elab_Term_elabLeadingParserMacro___lambda__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_Lean_KernelException_toMessageData___closed__15;
 extern lean_object* l_Lean_instInhabitedSyntax;
 extern lean_object* l_Lean_Parser_Term_dbgTrace___elambda__1___closed__1;
@@ -287,6 +295,7 @@ lean_object* l_Lean_Elab_Term_elabSubst___lambda__5(lean_object*, lean_object*,
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__22;
 lean_object* l_Lean_addMacroScope(lean_object*, lean_object*, lean_object*);
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__29;
+lean_object* l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro(lean_object*);
 lean_object* l_Lean_Elab_Term_elabParserMacro___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_elabStateRefT___lambda__2___closed__7;
 lean_object* l_Lean_Elab_Term_expandSuffices___lambda__2___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
@@ -316,6 +325,7 @@ lean_object* l_Lean_Elab_Term_elabTParserMacro(lean_object*, lean_object*, lean_
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__3;
 lean_object* l_Lean_Elab_Term_elabStateRefT___lambda__2___closed__3;
 lean_object* l_Lean_Elab_Term_elabSorry___closed__1;
+lean_object* l_Lean_Elab_Term_elabTrailingParserMacro___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_myMacro____x40_Init_Notation___hyg_2191____closed__4;
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux___closed__7;
 lean_object* l___regBuiltin_Lean_Elab_Term_expandShow(lean_object*);
@@ -378,6 +388,7 @@ extern lean_object* l_Lean_Parser_Tactic_case___closed__7;
 lean_object* l_Lean_Meta_isExprDefEq(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l___private_Lean_Meta_Basic_0__Lean_Meta_mkFreshExprMVarImpl(lean_object*, uint8_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_myMacro____x40_Init_Notation___hyg_1398____closed__8;
+lean_object* l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro(lean_object*);
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__9;
 lean_object* l_Lean_Elab_getRefPos___at_Lean_Elab_Term_elabPanic___spec__2___rarg(lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_expandSuffices___lambda__3___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
@@ -399,6 +410,7 @@ lean_object* l_Lean_Elab_Term_elabSorry___closed__9;
 lean_object* l_Lean_Elab_Term_mkPairs___boxed(lean_object*, lean_object*, lean_object*);
 extern lean_object* l_prec_x28___x29___closed__7;
 lean_object* l_Lean_Elab_Term_elabSubst___closed__2;
+lean_object* l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro___closed__1;
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux___closed__8;
 lean_object* l_Lean_Elab_Term_elabPanic___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l___regBuiltin_Lean_Elab_Term_elabParserMacro___closed__1;
@@ -407,6 +419,7 @@ lean_object* l_Lean_Elab_Term_elabAnonymousCtor___closed__5;
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_hasCDot_match__1(lean_object*);
 extern lean_object* l_prec_x28___x29___closed__3;
 lean_object* l_Lean_Elab_Term_elabStateRefT(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
+extern lean_object* l_Lean_Parser_Term_trailing__parser___elambda__1___closed__2;
 lean_object* l_Lean_Elab_Term_mkPairs_loop(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_expandUnreachable___rarg___closed__1;
 lean_object* l_Lean_Syntax_getArg(lean_object*, lean_object*);
@@ -463,6 +476,7 @@ lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParser
 lean_object* l_Lean_throwError___at___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabCDot___spec__2___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Term_expandAssert___closed__1;
 lean_object* l_Lean_Elab_Term_elabSubst_match__2___rarg(lean_object*, lean_object*, lean_object*);
+lean_object* l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro___closed__1;
 lean_object* l_Lean_Elab_Term_elabSubst___closed__6;
 lean_object* l_Lean_Meta_withLocalDecl___at_Lean_Elab_Term_elabLetDeclAux___spec__3___rarg(lean_object*, uint8_t, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l___regBuiltin_Lean_Elab_Term_elabAnonymousCtor___closed__1;
@@ -4249,6 +4263,162 @@ x_5 = l_Lean_KeyedDeclsAttribute_addBuiltin___rarg(x_2, x_3, x_4, x_1);
 return x_5;
 }
 }
+lean_object* l_Lean_Elab_Term_elabLeadingParserMacro___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
+_start:
+{
+lean_object* x_9; uint8_t x_10; 
+x_9 = l_Lean_Parser_Term_leading__parser___elambda__1___closed__2;
+lean_inc(x_1);
+x_10 = l_Lean_Syntax_isOfKind(x_1, x_9);
+if (x_10 == 0)
+{
+lean_object* x_11; 
+lean_dec(x_2);
+lean_dec(x_1);
+x_11 = l_Lean_Elab_throwUnsupportedSyntax___at___private_Lean_Elab_Binders_0__Lean_Elab_Term_expandBinderModifier___spec__1___rarg(x_8);
+return x_11;
+}
+else
+{
+lean_object* x_12; lean_object* x_13; lean_object* x_14; lean_object* x_27; uint8_t x_28; 
+x_12 = lean_unsigned_to_nat(1u);
+x_13 = l_Lean_Syntax_getArg(x_1, x_12);
+x_27 = l_Lean_nullKind___closed__2;
+lean_inc(x_13);
+x_28 = l_Lean_Syntax_isOfKind(x_13, x_27);
+if (x_28 == 0)
+{
+lean_object* x_29; 
+x_29 = lean_box(0);
+x_14 = x_29;
+goto block_26;
+}
+else
+{
+lean_object* x_30; lean_object* x_31; lean_object* x_32; uint8_t x_33; 
+x_30 = l_Lean_Syntax_getArgs(x_13);
+x_31 = lean_array_get_size(x_30);
+lean_dec(x_30);
+x_32 = lean_unsigned_to_nat(0u);
+x_33 = lean_nat_dec_eq(x_31, x_32);
+lean_dec(x_31);
+if (x_33 == 0)
+{
+lean_object* x_34; 
+x_34 = lean_box(0);
+x_14 = x_34;
+goto block_26;
+}
+else
+{
+lean_object* x_35; lean_object* x_36; lean_object* x_37; lean_object* x_38; 
+lean_dec(x_13);
+x_35 = lean_unsigned_to_nat(2u);
+x_36 = l_Lean_Syntax_getArg(x_1, x_35);
+lean_dec(x_1);
+x_37 = l_Lean_Elab_Term_elabParserMacro___lambda__1___closed__2;
+x_38 = l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux(x_37, x_36, x_2, x_3, x_4, x_5, x_6, x_7, x_8);
+return x_38;
+}
+}
+block_26:
+{
+lean_object* x_15; uint8_t x_16; 
+lean_dec(x_14);
+x_15 = l_Lean_nullKind___closed__2;
+lean_inc(x_13);
+x_16 = l_Lean_Syntax_isOfKind(x_13, x_15);
+if (x_16 == 0)
+{
+lean_object* x_17; 
+lean_dec(x_13);
+lean_dec(x_2);
+lean_dec(x_1);
+x_17 = l_Lean_Elab_throwUnsupportedSyntax___at___private_Lean_Elab_Binders_0__Lean_Elab_Term_expandBinderModifier___spec__1___rarg(x_8);
+return x_17;
+}
+else
+{
+lean_object* x_18; lean_object* x_19; lean_object* x_20; uint8_t x_21; 
+x_18 = l_Lean_Syntax_getArgs(x_13);
+x_19 = lean_array_get_size(x_18);
+lean_dec(x_18);
+x_20 = lean_unsigned_to_nat(2u);
+x_21 = lean_nat_dec_eq(x_19, x_20);
+lean_dec(x_19);
+if (x_21 == 0)
+{
+lean_object* x_22; 
+lean_dec(x_13);
+lean_dec(x_2);
+lean_dec(x_1);
+x_22 = l_Lean_Elab_throwUnsupportedSyntax___at___private_Lean_Elab_Binders_0__Lean_Elab_Term_expandBinderModifier___spec__1___rarg(x_8);
+return x_22;
+}
+else
+{
+lean_object* x_23; lean_object* x_24; lean_object* x_25; 
+x_23 = l_Lean_Syntax_getArg(x_13, x_12);
+lean_dec(x_13);
+x_24 = l_Lean_Syntax_getArg(x_1, x_20);
+lean_dec(x_1);
+x_25 = l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabParserMacroAux(x_23, x_24, x_2, x_3, x_4, x_5, x_6, x_7, x_8);
+return x_25;
+}
+}
+}
+}
+}
+}
+static lean_object* _init_l_Lean_Elab_Term_elabLeadingParserMacro___closed__1() {
+_start:
+{
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Term_elabLeadingParserMacro___lambda__1___boxed), 8, 0);
+return x_1;
+}
+}
+lean_object* l_Lean_Elab_Term_elabLeadingParserMacro(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
+_start:
+{
+lean_object* x_10; lean_object* x_11; 
+x_10 = l_Lean_Elab_Term_elabLeadingParserMacro___closed__1;
+x_11 = l_Lean_Elab_Term_adaptExpander(x_10, x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9);
+return x_11;
+}
+}
+lean_object* l_Lean_Elab_Term_elabLeadingParserMacro___lambda__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
+_start:
+{
+lean_object* x_9; 
+x_9 = l_Lean_Elab_Term_elabLeadingParserMacro___lambda__1(x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8);
+lean_dec(x_7);
+lean_dec(x_6);
+lean_dec(x_5);
+lean_dec(x_4);
+lean_dec(x_3);
+return x_9;
+}
+}
+static lean_object* _init_l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro___closed__1() {
+_start:
+{
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Term_elabLeadingParserMacro), 9, 0);
+return x_1;
+}
+}
+lean_object* l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro(lean_object* x_1) {
+_start:
+{
+lean_object* x_2; lean_object* x_3; lean_object* x_4; lean_object* x_5; 
+x_2 = l_Lean_Elab_Term_termElabAttribute;
+x_3 = l_Lean_Parser_Term_leading__parser___elambda__1___closed__2;
+x_4 = l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro___closed__1;
+x_5 = l_Lean_KeyedDeclsAttribute_addBuiltin___rarg(x_2, x_3, x_4, x_1);
+return x_5;
+}
+}
 lean_object* l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux_match__1___rarg(lean_object* x_1, lean_object* x_2, lean_object* x_3) {
 _start:
 {
@@ -4663,6 +4833,162 @@ x_5 = l_Lean_KeyedDeclsAttribute_addBuiltin___rarg(x_2, x_3, x_4, x_1);
 return x_5;
 }
 }
+lean_object* l_Lean_Elab_Term_elabTrailingParserMacro___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
+_start:
+{
+lean_object* x_9; uint8_t x_10; 
+x_9 = l_Lean_Parser_Term_trailing__parser___elambda__1___closed__2;
+lean_inc(x_1);
+x_10 = l_Lean_Syntax_isOfKind(x_1, x_9);
+if (x_10 == 0)
+{
+lean_object* x_11; 
+lean_dec(x_2);
+lean_dec(x_1);
+x_11 = l_Lean_Elab_throwUnsupportedSyntax___at___private_Lean_Elab_Binders_0__Lean_Elab_Term_expandBinderModifier___spec__1___rarg(x_8);
+return x_11;
+}
+else
+{
+lean_object* x_12; lean_object* x_13; lean_object* x_14; lean_object* x_27; uint8_t x_28; 
+x_12 = lean_unsigned_to_nat(1u);
+x_13 = l_Lean_Syntax_getArg(x_1, x_12);
+x_27 = l_Lean_nullKind___closed__2;
+lean_inc(x_13);
+x_28 = l_Lean_Syntax_isOfKind(x_13, x_27);
+if (x_28 == 0)
+{
+lean_object* x_29; 
+x_29 = lean_box(0);
+x_14 = x_29;
+goto block_26;
+}
+else
+{
+lean_object* x_30; lean_object* x_31; lean_object* x_32; uint8_t x_33; 
+x_30 = l_Lean_Syntax_getArgs(x_13);
+x_31 = lean_array_get_size(x_30);
+lean_dec(x_30);
+x_32 = lean_unsigned_to_nat(0u);
+x_33 = lean_nat_dec_eq(x_31, x_32);
+lean_dec(x_31);
+if (x_33 == 0)
+{
+lean_object* x_34; 
+x_34 = lean_box(0);
+x_14 = x_34;
+goto block_26;
+}
+else
+{
+lean_object* x_35; lean_object* x_36; lean_object* x_37; lean_object* x_38; 
+lean_dec(x_13);
+x_35 = lean_unsigned_to_nat(2u);
+x_36 = l_Lean_Syntax_getArg(x_1, x_35);
+lean_dec(x_1);
+x_37 = l_Lean_Elab_Term_elabParserMacro___lambda__1___closed__2;
+x_38 = l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux(x_37, x_36, x_2, x_3, x_4, x_5, x_6, x_7, x_8);
+return x_38;
+}
+}
+block_26:
+{
+lean_object* x_15; uint8_t x_16; 
+lean_dec(x_14);
+x_15 = l_Lean_nullKind___closed__2;
+lean_inc(x_13);
+x_16 = l_Lean_Syntax_isOfKind(x_13, x_15);
+if (x_16 == 0)
+{
+lean_object* x_17; 
+lean_dec(x_13);
+lean_dec(x_2);
+lean_dec(x_1);
+x_17 = l_Lean_Elab_throwUnsupportedSyntax___at___private_Lean_Elab_Binders_0__Lean_Elab_Term_expandBinderModifier___spec__1___rarg(x_8);
+return x_17;
+}
+else
+{
+lean_object* x_18; lean_object* x_19; lean_object* x_20; uint8_t x_21; 
+x_18 = l_Lean_Syntax_getArgs(x_13);
+x_19 = lean_array_get_size(x_18);
+lean_dec(x_18);
+x_20 = lean_unsigned_to_nat(2u);
+x_21 = lean_nat_dec_eq(x_19, x_20);
+lean_dec(x_19);
+if (x_21 == 0)
+{
+lean_object* x_22; 
+lean_dec(x_13);
+lean_dec(x_2);
+lean_dec(x_1);
+x_22 = l_Lean_Elab_throwUnsupportedSyntax___at___private_Lean_Elab_Binders_0__Lean_Elab_Term_expandBinderModifier___spec__1___rarg(x_8);
+return x_22;
+}
+else
+{
+lean_object* x_23; lean_object* x_24; lean_object* x_25; 
+x_23 = l_Lean_Syntax_getArg(x_13, x_12);
+lean_dec(x_13);
+x_24 = l_Lean_Syntax_getArg(x_1, x_20);
+lean_dec(x_1);
+x_25 = l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux(x_23, x_24, x_2, x_3, x_4, x_5, x_6, x_7, x_8);
+return x_25;
+}
+}
+}
+}
+}
+}
+static lean_object* _init_l_Lean_Elab_Term_elabTrailingParserMacro___closed__1() {
+_start:
+{
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Term_elabTrailingParserMacro___lambda__1___boxed), 8, 0);
+return x_1;
+}
+}
+lean_object* l_Lean_Elab_Term_elabTrailingParserMacro(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9) {
+_start:
+{
+lean_object* x_10; lean_object* x_11; 
+x_10 = l_Lean_Elab_Term_elabTrailingParserMacro___closed__1;
+x_11 = l_Lean_Elab_Term_adaptExpander(x_10, x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9);
+return x_11;
+}
+}
+lean_object* l_Lean_Elab_Term_elabTrailingParserMacro___lambda__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8) {
+_start:
+{
+lean_object* x_9; 
+x_9 = l_Lean_Elab_Term_elabTrailingParserMacro___lambda__1(x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8);
+lean_dec(x_7);
+lean_dec(x_6);
+lean_dec(x_5);
+lean_dec(x_4);
+lean_dec(x_3);
+return x_9;
+}
+}
+static lean_object* _init_l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro___closed__1() {
+_start:
+{
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Elab_Term_elabTrailingParserMacro), 9, 0);
+return x_1;
+}
+}
+lean_object* l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro(lean_object* x_1) {
+_start:
+{
+lean_object* x_2; lean_object* x_3; lean_object* x_4; lean_object* x_5; 
+x_2 = l_Lean_Elab_Term_termElabAttribute;
+x_3 = l_Lean_Parser_Term_trailing__parser___elambda__1___closed__2;
+x_4 = l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro___closed__1;
+x_5 = l_Lean_KeyedDeclsAttribute_addBuiltin___rarg(x_2, x_3, x_4, x_1);
+return x_5;
+}
+}
 lean_object* l_Lean_Elab_getRefPos___at_Lean_Elab_Term_elabPanic___spec__2___rarg(lean_object* x_1, lean_object* x_2, lean_object* x_3) {
 _start:
 {
@@ -10918,6 +11244,13 @@ lean_mark_persistent(l___regBuiltin_Lean_Elab_Term_elabParserMacro___closed__1);
 res = l___regBuiltin_Lean_Elab_Term_elabParserMacro(lean_io_mk_world());
 if (lean_io_result_is_error(res)) return res;
 lean_dec_ref(res);
+l_Lean_Elab_Term_elabLeadingParserMacro___closed__1 = _init_l_Lean_Elab_Term_elabLeadingParserMacro___closed__1();
+lean_mark_persistent(l_Lean_Elab_Term_elabLeadingParserMacro___closed__1);
+l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro___closed__1 = _init_l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro___closed__1();
+lean_mark_persistent(l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro___closed__1);
+res = l___regBuiltin_Lean_Elab_Term_elabLeadingParserMacro(lean_io_mk_world());
+if (lean_io_result_is_error(res)) return res;
+lean_dec_ref(res);
 l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux___closed__1 = _init_l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux___closed__1();
 lean_mark_persistent(l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux___closed__1);
 l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux___closed__2 = _init_l___private_Lean_Elab_BuiltinNotation_0__Lean_Elab_Term_elabTParserMacroAux___closed__2();
@@ -10945,6 +11278,13 @@ lean_mark_persistent(l___regBuiltin_Lean_Elab_Term_elabTParserMacro___closed__1)
 res = l___regBuiltin_Lean_Elab_Term_elabTParserMacro(lean_io_mk_world());
 if (lean_io_result_is_error(res)) return res;
 lean_dec_ref(res);
+l_Lean_Elab_Term_elabTrailingParserMacro___closed__1 = _init_l_Lean_Elab_Term_elabTrailingParserMacro___closed__1();
+lean_mark_persistent(l_Lean_Elab_Term_elabTrailingParserMacro___closed__1);
+l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro___closed__1 = _init_l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro___closed__1();
+lean_mark_persistent(l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro___closed__1);
+res = l___regBuiltin_Lean_Elab_Term_elabTrailingParserMacro(lean_io_mk_world());
+if (lean_io_result_is_error(res)) return res;
+lean_dec_ref(res);
 l_Lean_Elab_Term_elabPanic___closed__1 = _init_l_Lean_Elab_Term_elabPanic___closed__1();
 lean_mark_persistent(l_Lean_Elab_Term_elabPanic___closed__1);
 l_Lean_Elab_Term_elabPanic___closed__2 = _init_l_Lean_Elab_Term_elabPanic___closed__2();