Use ui_file_as_string in gdb/compile/

[deliverable/binutils-gdb.git] / gdb / rust-exp.y

diff --git a/gdb/rust-exp.y b/gdb/rust-exp.y
index aeb605887aa6e844a7f4cad3c99ba41f7da34dfc..dffccd0605bb5ef6e2e9d25d8eabd248461a01d7 100644 (file)
--- a/gdb/rust-exp.y
+++ b/gdb/rust-exp.y
@@ -276,6 +276,7 @@ struct rust_op
 %token <voidval> KW_EXTERN
 %token <voidval> KW_CONST
 %token <voidval> KW_FN
+%token <voidval> KW_SIZEOF
 
 /* Operator tokens.  */
 %token <voidval> DOTDOT
@@ -371,7 +372,7 @@ expr:
 |      array_expr
 |      idx_expr
 |      range_expr
-|      unop_expr
+|      unop_expr /* Must precede call_expr because of ambiguity with sizeof.  */
 |      binop_expr
 |      paren_expr
 |      call_expr
@@ -428,10 +429,14 @@ struct_expr_tail:
                }
 ;
 
-/* S{} is documented as valid but seems to be an unstable feature, so
-   it is left out here.  */
 struct_expr_list:
-       struct_expr_tail
+       /* %empty */
+               {
+                 VEC (set_field) **result
+                   = OBSTACK_ZALLOC (&work_obstack, VEC (set_field) *);
+                 $$ = result;
+               }
+|      struct_expr_tail
                {
                  VEC (set_field) **result
                    = OBSTACK_ZALLOC (&work_obstack, VEC (set_field) *);
@@ -573,7 +578,8 @@ unop_expr:
 
 |      '&' KW_MUT expr %prec UNARY
                { $$ = ast_unary (UNOP_ADDR, $3); }
-
+|   KW_SIZEOF '(' expr ')' %prec UNARY
+        { $$ = ast_unary (UNOP_SIZEOF, $3); }
 ;
 
 binop_expr:
@@ -868,6 +874,7 @@ static const struct token_info identifier_tokens[] =
   { "true", KW_TRUE, OP_NULL },
   { "extern", KW_EXTERN, OP_NULL },
   { "fn", KW_FN, OP_NULL },
+  { "sizeof", KW_SIZEOF, OP_NULL },
 };
 
 /* Operator tokens, sorted longest first.  */
@@ -968,17 +975,15 @@ super_name (const struct rust_op *ident, unsigned int n_supers)
       int i;
       int len;
       VEC (int) *offsets = NULL;
-      unsigned int current_len, previous_len;
+      unsigned int current_len;
       struct cleanup *cleanup;
 
       cleanup = make_cleanup (VEC_cleanup (int), &offsets);
       current_len = cp_find_first_component (scope);
-      previous_len = 0;
       while (scope[current_len] != '\0')
        {
          VEC_safe_push (int, offsets, current_len);
          gdb_assert (scope[current_len] == ':');
-         previous_len = current_len;
          /* The "::".  */
          current_len += 2;
          current_len += cp_find_first_component (scope
@@ -2192,6 +2197,7 @@ convert_ast_to_expression (struct parser_state *state,
     case UNOP_COMPLEMENT:
     case UNOP_IND:
     case UNOP_ADDR:
+    case UNOP_SIZEOF:
       convert_ast_to_expression (state, operation->left.op, top);
       write_exp_elt_opcode (state, operation->opcode);
       break;