#!/bin/bash
#
# mktheorytraits
# Morgan Deters <mdeters@cs.nyu.edu> for CVC4
# Copyright (c) 2010-2011  The CVC4 Project
#
# The purpose of this script is to create theory_traits.h from a template
# and a list of theory kinds.
#
# Invocation:
#
#   mktheorytraits template-file theory-kind-files...
#
# Output is to standard out.
#

copyright=2010-2011

cat <<EOF
/*********************                                                        */
/** theory_traits.h
 **
 ** Copyright $copyright  The AcSys Group, New York University, and as below.
 **
 ** This header file automatically generated by:
 **
 **     $0 $@
 **
 ** for the CVC4 project.
 **/

EOF

me=$(basename "$0")

template=$1; shift

theory_traits=
theory_includes=
theory_for_each_macro="#define CVC4_FOR_EACH_THEORY \\
"

theory_has_check="false"
theory_has_propagate="false"
theory_has_static_learning="false"
theory_has_presolve="false"

theory_stable_infinite="false"
theory_finite="false"
theory_polite="false"

rewriter_class=
rewriter_header=

theory_id=
theory_class=

seen_theory=false
seen_theory_builtin=false

function theory {
  # theory T header

  lineno=${BASH_LINENO[0]}

  # this script doesn't care about the theory class information, but
  # makes does make sure it's there
  seen_theory=true
  if [ "$1" = THEORY_BUILTIN ]; then
    if $seen_theory_builtin; then
      echo "$kf:$lineno: error: \"builtin\" theory redefined" >&2
      exit 1
    fi
    seen_theory_builtin=true
  elif [ -z "$1" -o -z "$2" -o -z "$3" ]; then
    echo "$kf:$lineno: error: \"theory\" directive missing class or header argument" >&2
    exit 1
  elif ! expr "$2" : '\(::*\)' >/dev/null; then
    echo "$kf:$lineno: warning: theory class \`$2' isn't fully-qualified (e.g., ::CVC4::theory::foo)" >&2
  elif ! expr "$2" : '\(::CVC4::theory::*\)' >/dev/null; then
    echo "$kf:$lineno: warning: theory class not under ::CVC4::theory namespace" >&2
  fi

  theory_id="$1"
  theory_class="$2"

  theory_includes="${theory_includes}#include \"$3\"
"
  theory_for_each_macro="${theory_for_each_macro} CVC4_FOR_EACH_THEORY_STATEMENT(CVC4::theory::${theory_id}) \\
"
}

function rewriter {
  # rewriter class header
  lineno=${BASH_LINENO[0]}
  check_theory_seen

  rewriter_class="$1"
  rewriter_header="$2"

  theory_includes="${theory_includes}#include \"$2\"
"
}

function endtheory {
  # endtheory
  lineno=${BASH_LINENO[0]}
  check_theory_seen

  theory_traits="${theory_traits}
template<>
struct TheoryTraits<${theory_id}> {
    typedef ${theory_class} theory_class;
    typedef ${rewriter_class} rewriter_class;

    static const bool isStableInfinite = ${theory_stable_infinite};
    static const bool isFinite = ${theory_finite};
    static const bool isPolite = ${theory_polite};

    static const bool hasCheck = ${theory_has_check};
    static const bool hasPropagate = ${theory_has_propagate};
    static const bool hasStaticLearning = ${theory_has_static_learning};
    static const bool hasPresolve = ${theory_has_presolve};
};
"

  theory_has_check="false"
  theory_has_propagate="false"
  theory_has_static_learning="false"
  theory_has_presolve="false"

  theory_stable_infinite="false"
  theory_finite="false"
  theory_polite="false"

  rewriter_class=
  rewriter_header=

  theory_id=
  theory_class=

  lineno=${BASH_LINENO[0]}
}


function properties {
  # properties property*
  lineno=${BASH_LINENO[0]}
  check_theory_seen
  while (( $# ));
  do
    property="$1"
    case "$property" in
       finite) theory_finite="true";;
       stable-infinite) theory_stable_infinite="true";;
       polite) theory_polite="true";;
       check) theory_has_check="true";;
       propagate) theory_has_propagate="true";;
       staticLearning) theory_has_static_learning="true";;
       presolve) theory_has_presolve="true";
    esac
    shift
  done
}

function sort {
  # sort TYPE ["comment"]
  lineno=${BASH_LINENO[0]}
  check_theory_seen
  register_sort "$1" "$2"
}

function variable {
  # variable K ["comment"]
  lineno=${BASH_LINENO[0]}
  check_theory_seen
  register_kind "$1" 0 "$2"
}

function operator {
  # operator K #children ["comment"]
  lineno=${BASH_LINENO[0]}
  check_theory_seen
  register_kind "$1" "$2" "$3"
}

function parameterized {
  # parameterized K1 K2 #children ["comment"]
  lineno=${BASH_LINENO[0]}
  check_theory_seen
  register_kind "$1" "$3" "$4"
}

function constant {
  # constant K T Hasher header ["comment"]
  lineno=${BASH_LINENO[0]}
  check_theory_seen
  register_kind "$1" 0 "$5"
}

function register_sort {
  id=$1
  comment=$2
  type_constant_to_theory_id="${type_constant_to_theory_id}   case $id: return $theory_id; break;
"
}

function register_kind {
  r=$1
  nc=$2
  comment=$3
  kind_to_theory_id="${kind_to_theory_id}   case kind::$r: return $theory_id; break;
"
}

function check_theory_seen {
  if ! $seen_theory; then
    echo "$kf:$lineno: error: no \"theory\" declaration found (it has to be first)" >&2
    exit 1
  fi
}

function check_builtin_theory_seen {
  if ! $seen_theory_builtin; then
    echo "$me: warning: no declaration for the builtin theory found" >&2
  fi
}

while [ $# -gt 0 ]; do
  kf=$1
  seen_theory=false
  b=$(basename $(dirname "$kf"))
  kind_decls="${kind_decls}
  /* from $b */
"
  kind_printers="${kind_printers}
  /* from $b */
"
  source "$kf"
  check_theory_seen
  shift
done
check_builtin_theory_seen

## output

text=$(cat "$template")
for var in theory_traits theory_for_each_macro theory_includes; do
  eval text="\${text//\\\$\\{$var\\}/\${$var}}"
done
error=`expr "$text" : '.*\${\([^}]*\)}.*'`
if [ -n "$error" ]; then
  echo "$template:0: error: undefined replacement \${$error}" >&2
  exit 1
fi
echo "$text"