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Fix off-by-one with RubyVM::Shape.exhaust_shapes

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Previously, the method left one shape available (MAX_SHAPE_ID) when
called without arguments.
This commit is contained in:
Alan Wu 2023-11-22 11:35:42 -05:00
parent 0e59d91eed
commit 341321f115
1 changed files with 1 additions and 1 deletions
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shape.c
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@ -1062,7 +1062,7 @@ rb_shape_exhaust(int argc, VALUE *argv, VALUE self)
{ {
rb_check_arity(argc, 0, 1); rb_check_arity(argc, 0, 1);
int offset = argc == 1 ? NUM2INT(argv[0]) : 0; int offset = argc == 1 ? NUM2INT(argv[0]) : 0;
GET_SHAPE_TREE()->next_shape_id = MAX_SHAPE_ID - offset; GET_SHAPE_TREE()->next_shape_id = MAX_SHAPE_ID - offset + 1;
return Qnil; return Qnil;
} }