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struct.c: show keyword_init: true on inspect

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for debugging if it's specified for the Struct class.
This follows up r61137.

We don't provide a method to check it because I don't think of any use
case, but showing this to inspect would be helpful for debugging if
someone is debugging whether keyword_init is properly enabled or not.

In this commit, I didn't show `keyword_init: false` because of backward
compatibility. Ideally any application should not depend on the behavior
of inspect, but I don't have strong motivation to break it too.

[close GH-1773]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61181 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
k0kubun 2017-12-12 15:03:45 +00:00
parent 1dcdb86876
commit 8411f58ed7
2 changed files with 13 additions and 0 deletions
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11
struct.c
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@ -294,6 +294,16 @@ define_aset_method(VALUE nstr, VALUE name, VALUE off)
rb_add_method_iseq(nstr, SYM2ID(name), iseq, NULL, METHOD_VISI_PUBLIC);
}
static VALUE
rb_struct_s_inspect(VALUE klass)
{
VALUE inspect = rb_class_name(klass);
if (RTEST(struct_ivar_get(klass, id_keyword_init))) {
rb_str_cat_cstr(inspect, "(keyword_init: true)");
}
return inspect;
}
static VALUE
setup_struct(VALUE nstr, VALUE members)
{
@ -306,6 +316,7 @@ setup_struct(VALUE nstr, VALUE members)
rb_define_singleton_method(nstr, "new", rb_class_new_instance, -1);
rb_define_singleton_method(nstr, "[]", rb_class_new_instance, -1);
rb_define_singleton_method(nstr, "members", rb_struct_s_members_m, 0);
rb_define_singleton_method(nstr, "inspect", rb_struct_s_inspect, 0);
ptr_members = RARRAY_CONST_PTR(members);
len = RARRAY_LEN(members);
for (i=0; i< len; i++) {

2
test/ruby/test_struct.rb
View file

@ -102,6 +102,8 @@ module TestStruct
assert_raise(ArgumentError) { @Struct::KeywordInitTrue.new(1, b: 2) }
assert_raise(ArgumentError) { @Struct::KeywordInitTrue.new(a: 1, b: 2, c: 3) }
assert_equal @Struct::KeywordInitTrue.new(a: 1, b: 2).values, @Struct::KeywordInitFalse.new(1, 2).values
assert_equal "#{@Struct}::KeywordInitFalse", @Struct::KeywordInitFalse.inspect
assert_equal "#{@Struct}::KeywordInitTrue(keyword_init: true)", @Struct::KeywordInitTrue.inspect
@Struct.instance_eval do
remove_const(:KeywordInitTrue)