From eed593eba6a18a71d876ac49178aeeb0aad6b7c0 Mon Sep 17 00:00:00 2001 From: zzak Date: Sat, 19 Jan 2013 02:37:01 +0000 Subject: * struct.c (Struct.new): Document Struct.new with block Patch by Hiroyuki Iwatsuki [Bug #7674] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- struct.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'struct.c') diff --git a/struct.c b/struct.c index fc03130987..5e9f9a15a1 100644 --- a/struct.c +++ b/struct.c @@ -283,9 +283,10 @@ rb_struct_define(const char *name, ...) /* * call-seq: - * Struct.new( [aString] [, aSym]+> ) -> StructClass - * StructClass.new(arg, ...) -> obj - * StructClass[arg, ...] -> obj + * Struct.new( [aString] [, aSym]+> ) -> StructClass + * Struct.new( [aString] [, aSym]+> ) {|StructClass| block } -> StructClass + * StructClass.new(arg, ...) -> obj + * StructClass[arg, ...] -> obj * * Creates a new class, named by aString, containing accessor * methods for the given symbols. If the name aString is @@ -296,6 +297,16 @@ rb_struct_define(const char *name, ...) * letter. Assigning a structure class to a constant effectively gives * the class the name of the constant. * + * If a block is given, it will be evaluated in the context of + * StructClass, passing StructClass as a parameter. + * + * Customer = Struct.new(:name, :address) do + * def greeting + * "Hello #{name}!" + * end + * end + * Customer.new("Dave", "123 Main").greeting # => "Hello Dave!" + * * Struct::new returns a new Class object, * which can then be used to create specific instances of the new * structure. The number of actual parameters must be -- cgit v1.2.3