From a320ffeafd62b349f6143ceb6b44547c746b08bc Mon Sep 17 00:00:00 2001 From: Federico Bond Date: Tue, 19 Dec 2017 12:45:04 -0300 Subject: Avoid output messages size blow-up using huge bignums literals --- libsolidity/ast/Types.cpp | 20 +++++++++++++++++--- libsolidity/ast/Types.h | 4 ++++ 2 files changed, 21 insertions(+), 3 deletions(-) (limited to 'libsolidity') diff --git a/libsolidity/ast/Types.cpp b/libsolidity/ast/Types.cpp index 21daac2c..716a1204 100644 --- a/libsolidity/ast/Types.cpp +++ b/libsolidity/ast/Types.cpp @@ -949,11 +949,25 @@ bool RationalNumberType::operator==(Type const& _other) const return m_value == other.m_value; } -string RationalNumberType::toString(bool) const +string RationalNumberType::bigintToString(dev::bigint const& _num, bool _short) +{ + string str = _num.str(); + if (_short && str.size() > 32) + { + int omitted = str.size() - 8; + return str.substr(0, 4) + "...(" + to_string(omitted) + " digits omitted)..." + str.substr(str.size() - 4, 4); + } + return str; +} + +string RationalNumberType::toString(bool _short) const { if (!isFractional()) - return "int_const " + m_value.numerator().str(); - return "rational_const " + m_value.numerator().str() + '/' + m_value.denominator().str(); + return "int_const " + bigintToString(m_value.numerator(), _short); + + string numerator = bigintToString(m_value.numerator(), _short); + string denominator = bigintToString(m_value.denominator(), _short); + return "rational_const " + numerator + '/' + denominator; } u256 RationalNumberType::literalValue(Literal const*) const diff --git a/libsolidity/ast/Types.h b/libsolidity/ast/Types.h index a54e4e09..05f23d04 100644 --- a/libsolidity/ast/Types.h +++ b/libsolidity/ast/Types.h @@ -437,6 +437,10 @@ private: /// @returns true if the literal is a valid rational number. static std::tuple parseRational(std::string const& _value); + + /// @returns a truncated readable representation of the bigint keeping only + /// up to 4 leading and 4 trailing digits. + static std::string bigintToString(dev::bigint const& num, bool _short); }; /** -- cgit v1.2.3