606 lines
22 KiB
C++
606 lines
22 KiB
C++
/*
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Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#include <algorithm>
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#include <vector>
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#include <set>
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#include "util/thread.h"
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#include "kernel/environment.h"
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#include "library/choice.h"
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#include "frontends/lean/info_manager.h"
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#include "frontends/lean/pp_options.h"
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namespace lean {
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class info_data;
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enum class info_kind { Type = 0, ExtraType, Synth, Overload, Coercion, Symbol, Identifier };
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bool operator<(info_kind k1, info_kind k2) { return static_cast<unsigned>(k1) < static_cast<unsigned>(k2); }
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class info_data_cell {
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unsigned m_column;
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MK_LEAN_RC();
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void dealloc() { delete this; }
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protected:
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friend info_data;
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virtual info_data_cell * instantiate(substitution &) const { return nullptr; }
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public:
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info_data_cell():m_column(0), m_rc(0) {}
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info_data_cell(unsigned c):m_column(c), m_rc(0) {}
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virtual ~info_data_cell() {}
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virtual info_kind kind() const = 0;
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unsigned get_column() const { return m_column; }
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virtual void display(io_state_stream const & ios, unsigned line) const = 0;
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virtual int compare(info_data_cell const & d) const {
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if (m_column != d.m_column)
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return m_column < d.m_column ? -1 : 1;
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if (kind() != d.kind())
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return kind() < d.kind() ? -1 : 1;
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return 0;
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}
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};
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class info_data {
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private:
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info_data_cell * m_ptr;
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public:
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info_data();
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info_data(info_data_cell * c):m_ptr(c) { lean_assert(c); m_ptr->inc_ref(); }
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info_data(info_data const & s):m_ptr(s.m_ptr) { if (m_ptr) m_ptr->inc_ref(); }
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info_data(info_data && s):m_ptr(s.m_ptr) { s.m_ptr = nullptr; }
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~info_data() { if (m_ptr) m_ptr->dec_ref(); }
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friend void swap(info_data & a, info_data & b) { std::swap(a.m_ptr, b.m_ptr); }
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info_data & operator=(info_data const & s) { LEAN_COPY_REF(s); }
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info_data & operator=(info_data && s) { LEAN_MOVE_REF(s); }
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int compare(info_data const & d) const { return m_ptr->compare(*d.m_ptr); }
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int compare(info_data_cell const & d) const { return m_ptr->compare(d); }
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info_data instantiate(substitution & s) const;
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unsigned get_column() const { return m_ptr->get_column(); }
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void display(io_state_stream const & ios, unsigned line) const { m_ptr->display(ios, line); }
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info_data_cell const * raw() const { return m_ptr; }
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};
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struct tmp_info_data : public info_data_cell {
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tmp_info_data(unsigned c):info_data_cell(c) {}
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virtual info_kind kind() const { lean_unreachable(); }
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virtual void display(io_state_stream const &, unsigned) const { lean_unreachable(); } // LCOV_EXCL_LINE
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};
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static info_data g_dummy(new tmp_info_data(0));
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info_data::info_data():info_data(g_dummy) {}
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info_data info_data::instantiate(substitution & s) const {
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if (auto r = m_ptr->instantiate(s)) {
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return info_data(r);
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} else {
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return *this;
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}
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}
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class type_info_data : public info_data_cell {
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protected:
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expr m_expr;
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public:
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type_info_data() {}
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type_info_data(unsigned c, expr const & e):info_data_cell(c), m_expr(e) {}
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expr const & get_type() const { return m_expr; }
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virtual info_kind kind() const { return info_kind::Type; }
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virtual void display(io_state_stream const & ios, unsigned line) const {
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ios << "-- TYPE|" << line << "|" << get_column() << "\n";
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ios << m_expr << endl;
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ios << "-- ACK" << endl;
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}
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virtual info_data_cell * instantiate(substitution & s) const {
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expr e = s.instantiate(m_expr);
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return is_eqp(e, m_expr) ? nullptr : new type_info_data(get_column(), e);
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}
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};
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class extra_type_info_data : public info_data_cell {
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protected:
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expr m_expr;
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expr m_type;
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public:
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extra_type_info_data() {}
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extra_type_info_data(unsigned c, expr const & e, expr const & t):info_data_cell(c), m_expr(e), m_type(t) {}
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virtual info_kind kind() const { return info_kind::ExtraType; }
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virtual void display(io_state_stream const & ios, unsigned line) const {
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ios << "-- EXTRA_TYPE|" << line << "|" << get_column() << "\n";
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ios << m_expr << endl;
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ios << "--" << endl;
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ios << m_type << endl;
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ios << "-- ACK" << endl;
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}
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virtual info_data_cell * instantiate(substitution & s) const {
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expr e = s.instantiate(m_expr);
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expr t = s.instantiate(m_type);
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return is_eqp(e, m_expr) && is_eqp(t, m_type) ? nullptr : new extra_type_info_data(get_column(), e, t);
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}
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};
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class synth_info_data : public type_info_data {
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public:
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synth_info_data(unsigned c, expr const & e):type_info_data(c, e) {}
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virtual info_kind kind() const { return info_kind::Synth; }
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virtual void display(io_state_stream const & ios, unsigned line) const {
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ios << "-- SYNTH|" << line << "|" << get_column() << "\n";
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ios << m_expr << endl;
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ios << "-- ACK" << endl;
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}
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virtual info_data_cell * instantiate(substitution & s) const {
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expr e = s.instantiate(m_expr);
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return is_eqp(e, m_expr) ? nullptr : new synth_info_data(get_column(), e);
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}
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expr const & get_expr() const { return m_expr; }
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};
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class overload_info_data : public info_data_cell {
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expr m_choices;
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public:
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overload_info_data(unsigned c, expr const & e):info_data_cell(c), m_choices(e) {}
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virtual info_kind kind() const { return info_kind::Overload; }
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virtual void display(io_state_stream const & ios, unsigned line) const {
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ios << "-- OVERLOAD|" << line << "|" << get_column() << "\n";
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options os = ios.get_options();
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os = os.update(get_pp_full_names_option_name(), true);
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auto new_ios = ios.update_options(os);
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for (unsigned i = 0; i < get_num_choices(m_choices); i++) {
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if (i > 0)
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ios << "--\n";
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new_ios << get_choice(m_choices, i) << endl;
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}
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new_ios << "-- ACK" << endl;
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}
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};
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class coercion_info_data : public info_data_cell {
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expr m_expr;
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expr m_type;
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public:
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coercion_info_data(unsigned c, expr const & e, expr const & t):
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info_data_cell(c), m_expr(e), m_type(t) {}
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virtual info_kind kind() const { return info_kind::Coercion; }
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virtual void display(io_state_stream const & ios, unsigned line) const {
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ios << "-- COERCION|" << line << "|" << get_column() << "\n";
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options os = ios.get_options();
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os = os.update(get_pp_coercion_option_name(), true);
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ios.update_options(os) << m_expr << endl << "--" << endl << m_type << endl;
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ios << "-- ACK" << endl;
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}
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};
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class symbol_info_data : public info_data_cell {
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name m_symbol;
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public:
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symbol_info_data(unsigned c, name const & s):info_data_cell(c), m_symbol(s) {}
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virtual info_kind kind() const { return info_kind::Symbol; }
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virtual void display(io_state_stream const & ios, unsigned line) const {
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ios << "-- SYMBOL|" << line << "|" << get_column() << "\n";
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ios << m_symbol << "\n";
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ios << "-- ACK" << endl;
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}
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};
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class identifier_info_data : public info_data_cell {
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name m_full_id;
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public:
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identifier_info_data(unsigned c, name const & full_id):info_data_cell(c), m_full_id(full_id) {}
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virtual info_kind kind() const { return info_kind::Identifier; }
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virtual void display(io_state_stream const & ios, unsigned line) const {
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ios << "-- IDENTIFIER|" << line << "|" << get_column() << "\n";
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ios << m_full_id << "\n";
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ios << "-- ACK" << endl;
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}
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};
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info_data mk_type_info(unsigned c, expr const & e) { return info_data(new type_info_data(c, e)); }
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info_data mk_extra_type_info(unsigned c, expr const & e, expr const & t) { return info_data(new extra_type_info_data(c, e, t)); }
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info_data mk_synth_info(unsigned c, expr const & e) { return info_data(new synth_info_data(c, e)); }
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info_data mk_overload_info(unsigned c, expr const & e) { return info_data(new overload_info_data(c, e)); }
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info_data mk_coercion_info(unsigned c, expr const & e, expr const & t) { return info_data(new coercion_info_data(c, e, t)); }
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info_data mk_symbol_info(unsigned c, name const & s) { return info_data(new symbol_info_data(c, s)); }
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info_data mk_identifier_info(unsigned c, name const & full_id) { return info_data(new identifier_info_data(c, full_id)); }
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struct info_data_cmp {
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int operator()(info_data const & i1, info_data const & i2) const { return i1.compare(i2); }
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};
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struct info_manager::imp {
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typedef rb_tree<info_data, info_data_cmp> info_data_set;
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/** \brief Saved environment + options for a given line and iteration
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Whenever "lean server" starts processing a file again, we bump the iteration.
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*/
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struct env_info {
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unsigned m_line;
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unsigned m_iteration;
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environment m_env;
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options m_options;
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env_info():m_line(0), m_iteration(0) {}
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env_info(unsigned l, unsigned i, environment const & env, options const & o):
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m_line(l), m_iteration(i), m_env(env), m_options(o) {}
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friend bool operator<(env_info const & i1, env_info const & i2) { return i1.m_line < i2.m_line; }
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};
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mutex m_mutex;
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bool m_block_new_info;
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std::vector<info_data_set> m_line_data;
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std::vector<bool> m_line_valid;
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std::set<env_info> m_env_info;
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unsigned m_iteration; // current interation
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unsigned m_processed_upto;
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imp():m_block_new_info(false), m_iteration(0), m_processed_upto(0) {}
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void block_new_info(bool f) {
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lock_guard<mutex> lc(m_mutex);
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m_block_new_info = f;
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}
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void synch_line(unsigned l) {
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lean_assert(l > 0);
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if (l >= m_line_data.size()) {
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m_line_data.resize(l+1);
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m_line_valid.resize(l+1, false);
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}
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}
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void save_environment_options(unsigned l, environment const & env, options const & o) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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// erase all entries in m_env_info such that e.m_line <= l and e.m_iteration < m_iteration
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auto it = m_env_info.begin();
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auto end = m_env_info.end();
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while (it != end) {
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if (it->m_line > l)
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break;
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else if (it->m_line <= l && it->m_iteration < m_iteration)
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it = m_env_info.erase(it);
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else
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++it;
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}
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m_env_info.insert(env_info(l, m_iteration, env, o));
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}
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void add_type_info(unsigned l, unsigned c, expr const & e) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].insert(mk_type_info(c, e));
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}
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void add_extra_type_info(unsigned l, unsigned c, expr const & e, expr const & t) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].insert(mk_extra_type_info(c, e, t));
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}
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void add_synth_info(unsigned l, unsigned c, expr const & e) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].insert(mk_synth_info(c, e));
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}
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void add_overload_info(unsigned l, unsigned c, expr const & e) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].insert(mk_overload_info(c, e));
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}
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void add_coercion_info(unsigned l, unsigned c, expr const & e, expr const & t) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].insert(mk_coercion_info(c, e, t));
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}
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void erase_coercion_info(unsigned l, unsigned c) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].erase(mk_coercion_info(c, expr(), expr()));
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}
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void add_symbol_info(unsigned l, unsigned c, name const & s) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].insert(mk_symbol_info(c, s));
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}
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void add_identifier_info(unsigned l, unsigned c, name const & full_id) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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synch_line(l);
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m_line_data[l].insert(mk_identifier_info(c, full_id));
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}
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static info_data_set instantiate(info_data_set const & s, substitution & subst) {
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info_data_set r;
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s.for_each([&](info_data const & d) {
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r.insert(d.instantiate(subst));
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});
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return r;
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}
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void instantiate(substitution const & s) {
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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substitution tmp_s = s;
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unsigned sz = m_line_data.size();
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for (unsigned i = 0; i < sz; i++) {
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m_line_data[i] = instantiate(m_line_data[i], tmp_s);
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}
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}
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void merge(info_manager::imp const & m, bool overwrite) {
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if (m.m_line_data.empty())
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return;
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lock_guard<mutex> lc(m_mutex);
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if (m_block_new_info)
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return;
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unsigned sz = m.m_line_data.size();
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for (unsigned i = 1; i < sz; i++) {
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info_data_set s = m.m_line_data[i];
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if (s.empty())
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continue;
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synch_line(i);
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if (!overwrite && m_line_valid[i])
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continue;
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unsigned range = m_line_data[i].empty() ? 0 : m_line_data[i].max()->get_column() + 1;
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s.for_each([&](info_data const & d) {
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if (overwrite || d.get_column() >= range)
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m_line_data[i].insert(d);
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});
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}
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}
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void insert_line(unsigned l) {
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lock_guard<mutex> lc(m_mutex);
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lean_assert(m_line_data.size() == m_line_valid.size());
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synch_line(l);
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if (m_processed_upto > l - 1)
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m_processed_upto = l - 1;
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m_line_data.push_back(info_data_set());
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m_line_valid.push_back(false);
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unsigned i = m_line_data.size();
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while (i > l) {
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--i;
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m_line_data[i] = m_line_data[i-1];
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m_line_valid[i] = m_line_valid[i-1];
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}
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m_line_valid[l] = false;
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}
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void remove_line(unsigned l) {
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lock_guard<mutex> lc(m_mutex);
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lean_assert(m_line_data.size() == m_line_valid.size());
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lean_assert(l > 0);
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if (l >= m_line_data.size())
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return;
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lean_assert(!m_line_data.empty());
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for (unsigned i = l; i < m_line_data.size() - 1; i++) {
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m_line_data[i] = m_line_data[i+1];
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m_line_valid[i] = m_line_valid[i+1];
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}
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m_line_data.pop_back();
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m_line_valid.pop_back();
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if (m_processed_upto > l - 1)
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m_processed_upto = l - 1;
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}
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void invalidate_line_col_core(unsigned l, optional<unsigned> const & c) {
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lock_guard<mutex> lc(m_mutex);
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lean_assert(m_line_data.size() == m_line_valid.size());
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synch_line(l);
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if (m_processed_upto > l - 1)
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m_processed_upto = l - 1;
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if (!c) {
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m_line_data[l] = info_data_set();
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} else {
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info_data_set new_set;
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m_line_data[l].for_each([&](info_data const & d) {
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if (d.get_column() < *c)
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new_set.insert(d);
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});
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m_line_data[l] = new_set;
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}
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m_line_valid[l] = false;
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}
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void invalidate_line(unsigned l) {
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invalidate_line_col_core(l, optional<unsigned>());
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}
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void invalidate_line_col(unsigned l, unsigned c) {
|
|
invalidate_line_col_core(l, optional<unsigned>(c));
|
|
}
|
|
|
|
void set_processed_upto(unsigned l) {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
synch_line(l);
|
|
m_processed_upto = l;
|
|
}
|
|
|
|
void commit_upto(unsigned l, bool valid) {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
if (m_block_new_info)
|
|
return;
|
|
synch_line(l);
|
|
for (unsigned i = m_processed_upto; i < l && i < m_line_valid.size(); i++)
|
|
m_line_valid[i] = valid;
|
|
m_processed_upto = l;
|
|
}
|
|
|
|
bool is_invalidated(unsigned l) {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
lean_assert(m_line_data.size() == m_line_valid.size());
|
|
if (l >= m_line_valid.size())
|
|
return true;
|
|
return !m_line_valid[l];
|
|
}
|
|
|
|
void display_core(environment const & env, options const & o, io_state const & ios, unsigned line) {
|
|
io_state_stream out = regular(env, ios).update_options(o);
|
|
m_line_data[line].for_each([&](info_data const & d) {
|
|
d.display(out, line);
|
|
});
|
|
}
|
|
|
|
void display(environment const & env, io_state const & ios, unsigned line) {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
if (line >= m_line_data.size() || m_line_data[line].empty()) {
|
|
// do nothing
|
|
} else if (m_env_info.empty()) {
|
|
display_core(env, ios.get_options(), ios, line);
|
|
} else {
|
|
auto it = m_env_info.begin();
|
|
auto end = m_env_info.end();
|
|
lean_assert(it != end);
|
|
if (it->m_line > line) {
|
|
display_core(env, ios.get_options(), ios, line);
|
|
return;
|
|
}
|
|
while (true) {
|
|
lean_assert(it->m_line <= line);
|
|
lean_assert(it != end);
|
|
auto next = it;
|
|
++next;
|
|
if (next == end || next->m_line > line) {
|
|
display_core(it->m_env, join(it->m_options, ios.get_options()), ios, line);
|
|
return;
|
|
}
|
|
it = next;
|
|
}
|
|
}
|
|
}
|
|
|
|
optional<pair<environment, options>> get_final_env_opts() {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
if (m_env_info.empty()) {
|
|
return optional<pair<environment, options>>();
|
|
} else {
|
|
auto it = m_env_info.end();
|
|
--it;
|
|
return optional<pair<environment, options>>(mk_pair(it->m_env, it->m_options));
|
|
}
|
|
}
|
|
|
|
optional<pair<environment, options>> get_closest_env_opts(unsigned linenum) {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
auto it = m_env_info.begin();
|
|
if (it == m_env_info.end())
|
|
return optional<pair<environment, options>>();
|
|
if (it->m_line > linenum)
|
|
return optional<pair<environment, options>>(it->m_env, it->m_options);
|
|
while (true) {
|
|
lean_assert(it != m_env_info.end() && it->m_line <= linenum);
|
|
auto next = it;
|
|
next++;
|
|
if (next == m_env_info.end() || next->m_line > linenum)
|
|
return optional<pair<environment, options>>(mk_pair(it->m_env, it->m_options));
|
|
it = next;
|
|
}
|
|
}
|
|
|
|
optional<expr> get_type_at(unsigned line, unsigned col) {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
if (line >= m_line_data.size())
|
|
return none_expr();
|
|
if (auto it = m_line_data[line].find(mk_type_info(col, expr())))
|
|
return some_expr(static_cast<type_info_data const *>(it->raw())->get_type());
|
|
else
|
|
return none_expr();
|
|
}
|
|
|
|
optional<expr> get_meta_at(unsigned line, unsigned col) {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
if (line >= m_line_data.size())
|
|
return none_expr();
|
|
if (auto it = m_line_data[line].find(mk_synth_info(col, expr())))
|
|
return some_expr(static_cast<synth_info_data const *>(it->raw())->get_expr());
|
|
else
|
|
return none_expr();
|
|
}
|
|
|
|
unsigned get_processed_upto() {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
return m_processed_upto;
|
|
}
|
|
|
|
void clear() {
|
|
lock_guard<mutex> lc(m_mutex);
|
|
if (m_block_new_info)
|
|
return;
|
|
m_line_data.clear();
|
|
m_line_valid.clear();
|
|
}
|
|
};
|
|
|
|
info_manager::info_manager():m_ptr(new imp()) {}
|
|
info_manager::~info_manager() {}
|
|
void info_manager::add_type_info(unsigned l, unsigned c, expr const & e) { m_ptr->add_type_info(l, c, e); }
|
|
void info_manager::add_extra_type_info(unsigned l, unsigned c, expr const & e, expr const & t) { m_ptr->add_extra_type_info(l, c, e, t); }
|
|
void info_manager::add_synth_info(unsigned l, unsigned c, expr const & e) { m_ptr->add_synth_info(l, c, e); }
|
|
void info_manager::add_overload_info(unsigned l, unsigned c, expr const & e) { m_ptr->add_overload_info(l, c, e); }
|
|
void info_manager::add_coercion_info(unsigned l, unsigned c, expr const & e, expr const & t) { m_ptr->add_coercion_info(l, c, e, t); }
|
|
void info_manager::erase_coercion_info(unsigned l, unsigned c) { m_ptr->erase_coercion_info(l, c); }
|
|
void info_manager::add_symbol_info(unsigned l, unsigned c, name const & s) { m_ptr->add_symbol_info(l, c, s); }
|
|
void info_manager::add_identifier_info(unsigned l, unsigned c, name const & full_id) {
|
|
m_ptr->add_identifier_info(l, c, full_id);
|
|
}
|
|
void info_manager::instantiate(substitution const & s) { m_ptr->instantiate(s); }
|
|
void info_manager::merge(info_manager const & m, bool overwrite) { m_ptr->merge(*m.m_ptr, overwrite); }
|
|
void info_manager::insert_line(unsigned l) { m_ptr->insert_line(l); }
|
|
void info_manager::remove_line(unsigned l) { m_ptr->remove_line(l); }
|
|
void info_manager::invalidate_line(unsigned l) { m_ptr->invalidate_line(l); }
|
|
void info_manager::invalidate_line_col(unsigned l, unsigned c) { m_ptr->invalidate_line_col(l, c); }
|
|
void info_manager::commit_upto(unsigned l, bool valid) { m_ptr->commit_upto(l, valid); }
|
|
void info_manager::set_processed_upto(unsigned l) { m_ptr->set_processed_upto(l); }
|
|
bool info_manager::is_invalidated(unsigned l) const { return m_ptr->is_invalidated(l); }
|
|
void info_manager::save_environment_options(unsigned l, environment const & env, options const & o) {
|
|
m_ptr->save_environment_options(l, env, o);
|
|
}
|
|
void info_manager::clear() { m_ptr->clear(); }
|
|
optional<pair<environment, options>> info_manager::get_final_env_opts() const { return m_ptr->get_final_env_opts(); }
|
|
optional<pair<environment, options>> info_manager::get_closest_env_opts(unsigned linenum) const { return m_ptr->get_closest_env_opts(linenum); }
|
|
void info_manager::display(environment const & env, io_state const & ios, unsigned line) const { m_ptr->display(env, ios, line); }
|
|
unsigned info_manager::get_processed_upto() const { return m_ptr->m_processed_upto; }
|
|
optional<expr> info_manager::get_type_at(unsigned line, unsigned col) const { return m_ptr->get_type_at(line, col); }
|
|
optional<expr> info_manager::get_meta_at(unsigned line, unsigned col) const { return m_ptr->get_meta_at(line, col); }
|
|
void info_manager::block_new_info(bool f) {
|
|
m_ptr->block_new_info(f);
|
|
}
|
|
}
|