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--- !ruby/object:RI::MethodDescription 
aliases: 
- !ruby/object:RI::AliasName 
  name: log
block_params: ""
comment: 
- !ruby/struct:SM::Flow::H 
  level: 3
  text: Synopsis
- !ruby/struct:SM::Flow::VERB 
  body: "  Logger#add(severity, message = nil, progname = nil) { ... }\n"
- !ruby/struct:SM::Flow::H 
  level: 3
  text: Args
- !ruby/object:SM::Flow::LIST 
  contents: 
  - !ruby/struct:SM::Flow::LI 
    label: "+severity+:"
    body: "Severity. Constants are defined in Logger namespace: <tt>DEBUG</tt>, <tt>INFO</tt>, <tt>WARN</tt>, <tt>ERROR</tt>, <tt>FATAL</tt>, or <tt>UNKNOWN</tt>."
  - !ruby/struct:SM::Flow::LI 
    label: "+message+:"
    body: The log message. A String or Exception.
  - !ruby/struct:SM::Flow::LI 
    label: "+progname+:"
    body: Program name string. Can be omitted. Treated as a message if no <tt>message</tt> and <tt>block</tt> are given.
  - !ruby/struct:SM::Flow::LI 
    label: "+block+:"
    body: Can be omitted. Called to get a message string if <tt>message</tt> is nil.
  type: :NOTE
- !ruby/struct:SM::Flow::H 
  level: 3
  text: Return
- !ruby/struct:SM::Flow::P 
  body: <tt>true</tt> if successful, <tt>false</tt> otherwise.
- !ruby/struct:SM::Flow::P 
  body: When the given severity is not high enough (for this particular logger), log no message, and return <tt>true</tt>.
- !ruby/struct:SM::Flow::H 
  level: 3
  text: Description
- !ruby/struct:SM::Flow::P 
  body: "Log a message if the given severity is high enough. This is the generic logging method. Users will be more inclined to use #debug, #info, #warn, #error, and #fatal."
- !ruby/struct:SM::Flow::P 
  body: "<b>Message format</b>: <tt>message</tt> can be any object, but it has to be converted to a String in order to log it. Generally, <tt>inspect</tt> is used if the given object is not a String. A special case is an <tt>Exception</tt> object, which will be printed in detail, including message, class, and backtrace. See #msg2str for the implementation if required."
- !ruby/struct:SM::Flow::H 
  level: 3
  text: Bugs
- !ruby/object:SM::Flow::LIST 
  contents: 
  - !ruby/struct:SM::Flow::LI 
    label: "*"
    body: Logfile is not locked.
  - !ruby/struct:SM::Flow::LI 
    label: "*"
    body: Append open does not need to lock file.
  - !ruby/struct:SM::Flow::LI 
    label: "*"
    body: But on the OS which supports multi I/O, records possibly be mixed.
  type: :BULLET
full_name: Logger#add
is_singleton: false
name: add
params: (severity, message = nil, progname = nil, &block) {|| ...}
visibility: public