Got AST::Fragment to be created from InlineAsm

gcc/rust/ChangeLog:

	* ast/rust-expr.h (struct AnonConst):
	Got AST::Fragment to be created from InlineAsm.
	(struct InlineAsmOperand): Likewise.
	(class InlineAsm): Likewise.
	* expand/rust-macro-builtins-asm.cc (parse_reg_operand): Likewise.
	(parse_asm): likewise

gcc/rust/ast/rust-expr.h

@@ -5,6 +5,7 @@
 #include "rust-path.h"
 #include "rust-macro.h"
 #include "rust-operators.h"
+#include <memory>
 
 namespace Rust {
 namespace AST {
@@ -4620,6 +4621,23 @@ struct AnonConst
 {
   NodeId id;
   std::unique_ptr<Expr> value;
+  AnonConst () {}
+  AnonConst (const AnonConst &other)
+  {
+    id = other.id;
+    value = other.value == nullptr
+	      ? nullptr
+	      : std::unique_ptr<Expr> (other.value->clone_expr ());
+  }
+
+  AnonConst operator= (const AnonConst &other)
+  {
+    id = other.id;
+    value = other.value == nullptr
+	      ? nullptr
+	      : std::unique_ptr<Expr> (other.value->clone_expr ());
+    return *this;
+  }
 };
 
 struct InlineAsmRegOrRegClass
@@ -4664,20 +4682,79 @@ struct InlineAsmOperand
   {
     InlineAsmRegOrRegClass reg;
     std::unique_ptr<Expr> expr;
+
+    In () {}
+    In (const struct In &other)
+    {
+      reg = other.reg;
+      expr = other.expr == nullptr
+	       ? nullptr
+	       : std::unique_ptr<Expr> (other.expr->clone_expr ());
+    }
+
+    In operator= (const struct In &other)
+    {
+      reg = other.reg;
+      expr = other.expr == nullptr
+	       ? nullptr
+	       : std::unique_ptr<Expr> (other.expr->clone_expr ());
+
+      return *this;
+    }
   };
 
   struct Out
   {
     InlineAsmRegOrRegClass reg;
     bool late;
     std::unique_ptr<Expr> expr; // can be null
+
+    Out () {}
+    Out (const struct Out &other)
+    {
+      reg = other.reg;
+      late = other.late;
+      expr = other.expr == nullptr
+	       ? nullptr
+	       : std::unique_ptr<Expr> (other.expr->clone_expr ());
+    }
+
+    Out operator= (const struct Out &other)
+    {
+      reg = other.reg;
+      late = other.late;
+      expr = other.expr == nullptr
+	       ? nullptr
+	       : std::unique_ptr<Expr> (other.expr->clone_expr ());
+      return *this;
+    }
   };
 
   struct InOut
   {
     InlineAsmRegOrRegClass reg;
     bool late;
     std::unique_ptr<Expr> expr; // this can't be null
+
+    InOut () {}
+    InOut (const struct InOut &other)
+    {
+      reg = other.reg;
+      late = other.late;
+      expr = other.expr == nullptr
+	       ? nullptr
+	       : std::unique_ptr<Expr> (other.expr->clone_expr ());
+    }
+
+    InOut operator= (const struct InOut &other)
+    {
+      reg = other.reg;
+      late = other.late;
+      expr = other.expr == nullptr
+	       ? nullptr
+	       : std::unique_ptr<Expr> (other.expr->clone_expr ());
+      return *this;
+    }
   };
 
   struct SplitInOut
@@ -4686,6 +4763,33 @@ struct InlineAsmOperand
     bool late;
     std::unique_ptr<Expr> in_expr;
     std::unique_ptr<Expr> out_expr; // could be null
+
+    SplitInOut () {}
+    SplitInOut (const struct SplitInOut &other)
+    {
+      reg = other.reg;
+      late = other.late;
+      in_expr = other.in_expr == nullptr
+		  ? nullptr
+		  : std::unique_ptr<Expr> (other.in_expr->clone_expr ());
+      out_expr = other.out_expr == nullptr
+		   ? nullptr
+		   : std::unique_ptr<Expr> (other.out_expr->clone_expr ());
+    }
+
+    SplitInOut operator= (const struct SplitInOut &other)
+    {
+      reg = other.reg;
+      late = other.late;
+      in_expr = other.in_expr == nullptr
+		  ? nullptr
+		  : std::unique_ptr<Expr> (other.in_expr->clone_expr ());
+      out_expr = other.out_expr == nullptr
+		   ? nullptr
+		   : std::unique_ptr<Expr> (other.out_expr->clone_expr ());
+
+      return *this;
+    }
   };
 
   struct Const
@@ -4696,6 +4800,18 @@ struct InlineAsmOperand
   struct Sym
   {
     std::unique_ptr<Expr> sym;
+
+    Sym () {}
+    Sym (const struct Sym &other)
+    {
+      sym = std::unique_ptr<Expr> (other.sym->clone_expr ());
+    }
+
+    Sym operator= (const struct Sym &other)
+    {
+      sym = std::unique_ptr<Expr> (other.sym->clone_expr ());
+      return *this;
+    }
   };
   RegisterType registerType;
 
@@ -4706,6 +4822,12 @@ struct InlineAsmOperand
   struct Const cnst;
   struct Sym sym;
 
+  InlineAsmOperand () {}
+  InlineAsmOperand (const InlineAsmOperand &other)
+    : in (other.in), out (other.out), inOut (other.inOut),
+      splitInOut (other.splitInOut), cnst (other.cnst), sym (other.sym)
+  {}
+
   location_t locus;
 };
 
@@ -4739,7 +4861,7 @@ struct TupleTemplateStr
 };
 
 // Inline Assembly Node
-class InlineAsm : private ExprWithoutBlock
+class InlineAsm : public ExprWithoutBlock
 {
 private:
   location_t locus;
@@ -4775,10 +4897,9 @@ class InlineAsm : private ExprWithoutBlock
 
   void set_outer_attrs (std::vector<Attribute> v) override { outer_attrs = v; }
 
-  ExprWithoutBlock *clone_expr_without_block_impl () const override
+  InlineAsm *clone_expr_without_block_impl () const override
   {
-    rust_unreachable ();
-    return nullptr;
+    return new InlineAsm (*this);
   }
 };
 

gcc/rust/expand/rust-macro-builtins-asm.cc

@@ -220,27 +220,40 @@ parse_reg_operand (Parser<MacroInvocLexer> &parser, TokenId last_token_id,
   bool is_explicit_reg = false;
   bool is_global_asm = inlineAsm.is_global_asm;
   if (!is_global_asm && check_identifier (parser, "in"))
-    {}
+    {
+      return tl::nullopt;
+    }
   else if (!is_global_asm && check_identifier (parser, "out"))
-    {}
+    {
+      return tl::nullopt;
+    }
   else if (!is_global_asm && check_identifier (parser, "lateout"))
-    {}
+    {
+      return tl::nullopt;
+    }
   else if (!is_global_asm && check_identifier (parser, "inout"))
-    {}
+    {
+      return tl::nullopt;
+    }
   else if (!is_global_asm && check_identifier (parser, "inlateout"))
-    {}
+    {
+      return tl::nullopt;
+    }
   else if (parser.peek_current_token ()->get_id () == CONST)
     {
       rust_unreachable ();
       // todo: Please handle const
+      return tl::nullopt;
     }
   else if (false && check_identifier (parser, "sym"))
     {
       // todo: Please handle sym
+      return tl::nullopt;
     }
   else if (false && check_identifier (parser, "label"))
     {
       // todo: Please handle label
+      return tl::nullopt;
     }
   else
     {
@@ -518,7 +531,13 @@ parse_asm (location_t invoc_locus, AST::MacroInvocData &invoc,
   // operands stream, also handles the optional ","
   parse_asm_arg (parser, last_token_id, inlineAsmCtx);
 
-  return tl::nullopt;
+  AST::SingleASTNode single
+    = AST::SingleASTNode (inlineAsmCtx.inlineAsm.clone_expr_without_block ());
+  std::vector<AST::SingleASTNode> single_vec = {single};
+
+  AST::Fragment fragment_ast
+    = AST::Fragment (single_vec, std::vector<std::unique_ptr<AST::Token>> ());
+  return fragment_ast;
 }
 
 } // namespace Rust