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/****************************************************************************** |
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* Top contributors (to current version): |
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* Morgan Deters, Tim King, Kshitij Bansal |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* Expr IO manipulation classes. |
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*/ |
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#include "expr/expr_iomanip.h" |
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#include <iomanip> |
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#include <iostream> |
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#include "options/options.h" |
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#include "options/expr_options.h" |
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namespace cvc5 { |
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namespace expr { |
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const int ExprSetDepth::s_iosIndex = std::ios_base::xalloc(); |
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const int ExprDag::s_iosIndex = std::ios_base::xalloc(); |
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ExprSetDepth::ExprSetDepth(long depth) : d_depth(depth) {} |
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void ExprSetDepth::applyDepth(std::ostream& out) { |
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out.iword(s_iosIndex) = d_depth; |
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} |
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long ExprSetDepth::getDepth(std::ostream& out) { |
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long& l = out.iword(s_iosIndex); |
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if(l == 0) { |
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// set the default print depth on this ostream |
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if(not Options::isCurrentNull()) { |
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l = options::defaultExprDepth(); |
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} |
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if(l == 0) { |
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// if called from outside the library, we may not have options |
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// available to us at this point (or perhaps the output language |
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// is not set in Options). Default to something reasonable, but |
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// don't set "l" since that would make it "sticky" for this |
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// stream. |
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return s_defaultPrintDepth; |
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} |
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} |
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return l; |
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} |
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void ExprSetDepth::setDepth(std::ostream& out, long depth) { |
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out.iword(s_iosIndex) = depth; |
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} |
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ExprSetDepth::Scope::Scope(std::ostream& out, long depth) |
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: d_out(out), d_oldDepth(ExprSetDepth::getDepth(out)) |
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{ |
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ExprSetDepth::setDepth(out, depth); |
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} |
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ExprSetDepth::Scope::~Scope() { |
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ExprSetDepth::setDepth(d_out, d_oldDepth); |
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} |
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ExprDag::ExprDag(bool dag) : d_dag(dag ? 1 : 0) {} |
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ExprDag::ExprDag(int dag) : d_dag(dag < 0 ? 0 : dag) {} |
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void ExprDag::applyDag(std::ostream& out) { |
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// (offset by one to detect whether default has been set yet) |
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out.iword(s_iosIndex) = static_cast<long>(d_dag) + 1; |
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} |
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size_t ExprDag::getDag(std::ostream& out) { |
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long& l = out.iword(s_iosIndex); |
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if(l == 0) { |
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// set the default dag setting on this ostream |
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// (offset by one to detect whether default has been set yet) |
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if(not Options::isCurrentNull()) { |
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l = options::defaultDagThresh() + 1; |
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} |
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if(l == 0) { |
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// if called from outside the library, we may not have options |
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// available to us at this point (or perhaps the output language |
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// is not set in Options). Default to something reasonable, but |
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// don't set "l" since that would make it "sticky" for this |
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// stream. |
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return s_defaultDag + 1; |
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} |
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} |
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return static_cast<size_t>(l - 1); |
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} |
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void ExprDag::setDag(std::ostream& out, size_t dag) { |
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// (offset by one to detect whether default has been set yet) |
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out.iword(s_iosIndex) = static_cast<long>(dag) + 1; |
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} |
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ExprDag::Scope::Scope(std::ostream& out, size_t dag) |
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: d_out(out), |
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d_oldDag(ExprDag::getDag(out)) { |
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ExprDag::setDag(out, dag); |
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} |
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ExprDag::Scope::~Scope() { |
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ExprDag::setDag(d_out, d_oldDag); |
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} |
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std::ostream& operator<<(std::ostream& out, ExprDag d) { |
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d.applyDag(out); |
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return out; |
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} |
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std::ostream& operator<<(std::ostream& out, ExprSetDepth sd) { |
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sd.applyDepth(out); |
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return out; |
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} |
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} // namespace expr |
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} // namespace cvc5 |