diff options
author | marcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-04-16 03:16:10 +0000 |
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committer | marcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2012-04-16 03:16:10 +0000 |
commit | 1dbe0f0672cfc16c875d0a47bde266ddbaa8ba98 (patch) | |
tree | e1830cf693e2c6fae36a7a68dd5bd77ce67d1510 /struct.c | |
parent | 33399fe8248a25132343b1b5be3a35357c3d9099 (diff) |
* struct.c: Add Struct#to_h [Feature #6276]
[ref #4862] [rubyspec:2082ef46d46e]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35341 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'struct.c')
-rw-r--r-- | struct.c | 26 |
1 files changed, 26 insertions, 0 deletions
@@ -586,6 +586,31 @@ rb_struct_to_a(VALUE s) return rb_ary_new4(RSTRUCT_LEN(s), RSTRUCT_PTR(s)); } +/* + * call-seq: + * struct.to_h -> hash + * + * Returns the values for this instance as a hash with keys + * corresponding to the instance variable name. + * + * Customer = Struct.new(:name, :address, :zip) + * joe = Customer.new("Joe Smith", "123 Maple, Anytown NC", 12345) + * joe.to_h[:address] #=> "123 Maple, Anytown NC" + */ + +static VALUE +rb_struct_to_h(VALUE s) +{ + VALUE h = rb_hash_new(); + VALUE members = rb_struct_members(s); + long i; + + for (i=0; i<RSTRUCT_LEN(s); i++) { + rb_hash_aset(h, rb_ary_entry(members, i), RSTRUCT_PTR(s)[i]); + } + return h; +} + /* :nodoc: */ VALUE rb_struct_init_copy(VALUE copy, VALUE s) @@ -961,6 +986,7 @@ Init_Struct(void) rb_define_method(rb_cStruct, "inspect", rb_struct_inspect, 0); rb_define_alias(rb_cStruct, "to_s", "inspect"); rb_define_method(rb_cStruct, "to_a", rb_struct_to_a, 0); + rb_define_method(rb_cStruct, "to_h", rb_struct_to_h, 0); rb_define_method(rb_cStruct, "values", rb_struct_to_a, 0); rb_define_method(rb_cStruct, "size", rb_struct_size, 0); rb_define_method(rb_cStruct, "length", rb_struct_size, 0); |