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ENC_ASSERT

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* encoding.c (ENC_ASSERT): make an expression, and prevent the
  argument from further expansions.

* encoding.c (rb_enc_check_str): assert before using.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52359 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-10-29 14:31:48 +00:00
parent 78e436671a
commit d8a27d374a
1 changed files with 3 additions and 4 deletions
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7
encoding.c
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@ -19,7 +19,8 @@
#ifndef ENC_DEBUG
#define ENC_DEBUG 0
#endif
#define ENC_ASSERT(expr) do { if (ENC_DEBUG) {assert(expr);} } while (0)
#define ENC_ASSERT (!ENC_DEBUG)?(void)0:assert
#define MUST_STRING(str) (ENC_ASSERT(RB_TYPE_P(str, T_STRING)), str)
#undef rb_ascii8bit_encindex
#undef rb_utf8_encindex
@ -860,9 +861,7 @@ static rb_encoding* enc_compatible_str(VALUE str1, VALUE str2);
rb_encoding*
rb_enc_check_str(VALUE str1, VALUE str2)
{
rb_encoding *enc = enc_compatible_str(str1, str2);
ENC_ASSERT(TYPE(str1) == T_STRING);
ENC_ASSERT(TYPE(str2) == T_STRING);
rb_encoding *enc = enc_compatible_str(MUST_STRING(str1), MUST_STRING(str2));
if (!enc)
rb_raise(rb_eEncCompatError, "incompatible character encodings: %s and %s",
rb_enc_name(rb_enc_get(str1)),