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binpac: BIT-1829: throw exceptions for negative array length expressions

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This commit is contained in:
Jon Siwek 2018-05-22 13:18:20 -05:00 • committed by Tim Wojtulewicz
parent 455e2fbac5
commit 465fd6bd56
1 changed files with 6 additions and 2 deletions
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8
tools/binpac/src/pac_array.cc
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@ -283,8 +283,12 @@ void ArrayType::GenArrayLength(Output *out_cc, Env *env, const DataPtr& data)
env->LValue(arraylength_var()));
out_cc->inc_indent();
out_cc->println("{");
out_cc->println("%s = 0;",
env->LValue(arraylength_var()));
out_cc->println("throw binpac::ExceptionOutOfBound(\"%s\",",
data_id_str_.c_str());
out_cc->println(" %s, (%s) - (%s));",
env->LValue(arraylength_var()),
env->RValue(end_of_data),
env->RValue(begin_of_data));
out_cc->println("}");
out_cc->dec_indent();