json: reduce use of naked new in json-building code

No functional change intended.

gcc/ChangeLog:
	* diagnostic-format-json.cc: Use type-specific "set_*" functions
	of json::object to avoid naked new of json value subclasses.
	* diagnostic-format-sarif.cc: Likewise.
	* gcov.cc: Likewise.
	* json.cc (object::set_string): New.
	(object::set_integer): New.
	(object::set_float): New.
	(object::set_bool): New.
	(selftest::test_writing_objects): Use object::set_string.
	* json.h (object::set_string): New decl.
	(object::set_integer): New decl.
	(object::set_float): New decl.
	(object::set_bool): New decl.
	* optinfo-emit-json.cc: Use type-specific "set_*" functions of
	json::object to avoid naked new of json value subclasses.
	* timevar.cc: Likewise.
	* tree-diagnostic-path.cc: Likewise.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/json.h b/gcc/json.h
index 6cc58c8..6fadd11 100644
--- a/gcc/json.h
+++ b/gcc/json.h
@@ -102,6 +102,13 @@ class object : public value
   void set (const char *key, value *v);
   value *get (const char *key) const;
 
+  void set_string (const char *key, const char *utf8_value);
+  void set_integer (const char *key, long v);
+  void set_float (const char *key, double v);
+
+  /* Set to literal true/false.  */
+  void set_bool (const char *key, bool v);
+
  private:
   typedef hash_map <char *, value *,
     simple_hashmap_traits<nofree_string_hash, value *> > map_t;