mirror of
https://github.com/amyinspace/MagicSetEditor2.git
synced 2026-06-10 04:57:00 -04:00
Twan van Laarhoven
615 lines
20 KiB
C++
615 lines
20 KiB
C++
//+----------------------------------------------------------------------------+
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//| Description: Magic Set Editor - Program to make Magic (tm) cards |
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//| Copyright: (C) Twan van Laarhoven and the other MSE developers |
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//| License: GNU General Public License 2 or later (see file COPYING) |
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//+----------------------------------------------------------------------------+
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// ----------------------------------------------------------------------------- : Includes
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#include <util/prec.hpp>
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#include <script/value.hpp>
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#include <script/to_value.hpp>
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#include <script/context.hpp>
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#include <gfx/generated_image.hpp>
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#include <util/error.hpp>
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#include <boost/pool/singleton_pool.hpp>
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// ----------------------------------------------------------------------------- : ScriptValue
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// Base cases
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String ScriptValue::toString() const {
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throw ScriptErrorConversion(typeName(), _TYPE_("string"));
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}
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int ScriptValue::toInt() const {
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throw ScriptErrorConversion(typeName(), _TYPE_("integer"));
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}
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bool ScriptValue::toBool() const {
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throw ScriptErrorConversion(typeName(), _TYPE_("boolean"));
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}
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double ScriptValue::toDouble() const {
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throw ScriptErrorConversion(typeName(), _TYPE_("double"));
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}
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Color ScriptValue::toColor() const {
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throw ScriptErrorConversion(typeName(), _TYPE_("color"));
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}
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wxDateTime ScriptValue::toDateTime() const {
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throw ScriptErrorConversion(typeName(), _TYPE_("date"));
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}
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GeneratedImageP ScriptValue::toImage(const ScriptValueP&) const {
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throw ScriptErrorConversion(typeName(), _TYPE_("image" ));
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}
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String ScriptValue::toCode() const {
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return toString();
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}
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ScriptValueP ScriptValue::eval(Context&, bool) const {
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return delay_error(ScriptErrorConversion(typeName(), _TYPE_("function")));
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}
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ScriptValueP ScriptValue::next(ScriptValueP* key_out, int* index_out) {
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throw InternalError(_("Can't convert from ")+typeName()+_(" to iterator"));
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}
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ScriptValueP ScriptValue::makeIterator(const ScriptValueP&) const {
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return delay_error(ScriptErrorConversion(typeName(), _TYPE_("collection")));
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}
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int ScriptValue::itemCount() const {
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throw ScriptErrorConversion(typeName(), _TYPE_("collection"));
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}
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CompareWhat ScriptValue::compareAs(String& compare_str, void const*& compare_ptr) const {
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compare_str = toCode();
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return COMPARE_AS_STRING;
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}
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ScriptValueP ScriptValue::getMember(const String& name) const {
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long index;
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if (name.ToLong(&index)) {
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return getIndex(index);
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} else {
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return delay_error(ScriptErrorNoMember(typeName(), name));
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}
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}
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ScriptValueP ScriptValue::getIndex(int index) const {
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return delay_error(ScriptErrorNoMember(typeName(), String()<<index));
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}
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ScriptValueP ScriptValue::simplifyClosure(ScriptClosure&) const {
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return nullptr;
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}
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ScriptValueP ScriptValue::dependencyMember(const String& name, const Dependency&) const {
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return dependency_dummy;
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}
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ScriptValueP ScriptValue::dependencyName(const ScriptValue& container, const Dependency& dep) const {
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return container.dependencyMember(toString(),dep);
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}
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ScriptValueP ScriptValue::dependencies(Context&, const Dependency&) const {
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return dependency_dummy;
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}
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void ScriptValue::dependencyThis(const Dependency& dep) {}
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bool approx_equal(double a, double b) {
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return a == b || fabs(a - b) < 1e-14;
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}
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/// compare script values for equallity
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bool equal(const ScriptValueP& a, const ScriptValueP& b) {
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if (a == b) return true;
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ScriptType at = a->type(), bt = b->type();
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if (at == bt && at == SCRIPT_INT) {
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return a->toInt() == b->toInt();
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} else if (at == bt && at == SCRIPT_BOOL) {
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return a->toBool() == b->toBool();
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} else if ((at == SCRIPT_INT || at == SCRIPT_DOUBLE) &&
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(bt == SCRIPT_INT || bt == SCRIPT_DOUBLE)) {
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return approx_equal(a->toDouble(), b->toDouble());
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} else if (at == SCRIPT_COLLECTION && bt == SCRIPT_COLLECTION) {
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// compare each element
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if (a->itemCount() != b->itemCount()) return false;
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ScriptValueP a_it = a->makeIterator();
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ScriptValueP b_it = b->makeIterator();
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while (true) {
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ScriptValueP a_v = a_it->next();
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ScriptValueP b_v = b_it->next();
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if (!a_v || !b_v) return a_v == b_v;
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if (!equal(a_v, b_v)) return false;
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}
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} else {
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String as, bs;
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const void* ap, *bp;
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CompareWhat aw = a->compareAs(as, ap);
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CompareWhat bw = b->compareAs(bs, bp);
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// compare pointers or strings
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if (aw == COMPARE_AS_STRING || bw == COMPARE_AS_STRING) {
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return as == bs;
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} else if (aw == COMPARE_AS_POINTER || bw == COMPARE_AS_POINTER) {
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return ap == bp;
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} else {
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return false;
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}
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}
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}
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// ----------------------------------------------------------------------------- : Errors
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/// A delayed error message.
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/** Only when trying to use the object will the error be thrown.
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* This can be 'caught' by the "or else" construct
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*/
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class ScriptDelayedError : public ScriptValue {
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public:
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inline ScriptDelayedError(const ScriptError& error) : error(error) {}
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ScriptType type() const override { return SCRIPT_ERROR; }
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// all of these throw
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String typeName() const override { throw error; }
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String toString() const override { throw error; }
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double toDouble() const override { throw error; }
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int toInt() const override { throw error; }
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bool toBool() const override { throw error; }
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Color toColor() const override { throw error; }
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wxDateTime toDateTime() const override { throw error; }
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GeneratedImageP toImage(const ScriptValueP& thisP) const override { throw error; }
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int itemCount() const override { throw error; }
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CompareWhat compareAs(String&, void const*&) const override { throw error; }
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// these can propagate the error
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ScriptValueP getMember(const String& name) const override { return delay_error(error); }
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ScriptValueP dependencyMember(const String& name, const Dependency&) const override { return delay_error(error); }
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ScriptValueP dependencies(Context&, const Dependency&) const override { return delay_error(error); }
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ScriptValueP makeIterator(const ScriptValueP&) const override { return delay_error(error); }
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ScriptValueP eval(Context&, bool openScope) const override { return delay_error(error); }
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private:
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ScriptError error; // the error message
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};
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ScriptValueP delay_error(const ScriptError& error) {
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return make_intrusive<ScriptDelayedError>(error);
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}
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// ----------------------------------------------------------------------------- : Iterators
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ScriptType ScriptIterator::type() const { return SCRIPT_ITERATOR; }
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String ScriptIterator::typeName() const { return _("iterator"); }
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CompareWhat ScriptIterator::compareAs(String&, void const*&) const { return COMPARE_NO; }
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ScriptValueP ScriptIterator::makeIterator(const ScriptValueP& thisP) const { return thisP; }
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// Iterator over a range of integers
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class ScriptRangeIterator : public ScriptIterator {
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public:
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// Construct a range iterator with the given bounds (inclusive)
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ScriptRangeIterator(int start, int end)
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: pos(start), start(start), end(end)
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{}
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ScriptValueP next(ScriptValueP* key_out, int* index_out) override {
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if (pos <= end) {
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if (key_out) *key_out = to_script(pos-start);
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if (index_out) *index_out = (int)pos;
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return to_script(pos++);
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} else {
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return ScriptValueP();
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}
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}
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private:
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int pos, start, end;
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};
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ScriptValueP rangeIterator(int start, int end) {
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return make_intrusive<ScriptRangeIterator>(start, end);
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}
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// ----------------------------------------------------------------------------- : Integers
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#ifdef USE_INTRUSIVE_PTR
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#define USE_POOL_ALLOCATOR
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#endif
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// Integer values
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class ScriptInt : public ScriptValue {
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public:
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ScriptInt(int v) : value(v) {}
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ScriptType type() const override { return SCRIPT_INT; }
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String typeName() const override { return _TYPE_("integer"); }
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String toString() const override { return String() << value; }
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double toDouble() const override { return value; }
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int toInt() const override { return value; }
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protected:
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#ifdef USE_POOL_ALLOCATOR
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virtual void destroy() {
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boost::singleton_pool<ScriptValue, sizeof(ScriptInt)>::free(this);
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}
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#endif
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private:
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int value;
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};
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#if defined(USE_POOL_ALLOCATOR) && !defined(USE_INTRUSIVE_PTR)
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// deallocation function for pool allocated integers
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void destroy_value(ScriptInt* v) {
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boost::singleton_pool<ScriptValue, sizeof(ScriptInt)>::free(v);
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}
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#endif
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ScriptValueP to_script(int v) {
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#ifdef USE_POOL_ALLOCATOR
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#ifdef USE_INTRUSIVE_PTR
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return ScriptValueP(
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new(boost::singleton_pool<ScriptValue, sizeof(ScriptInt)>::malloc())
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ScriptInt(v));
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#else
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return ScriptValueP(
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new(boost::singleton_pool<ScriptValue, sizeof(ScriptInt)>::malloc())
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ScriptInt(v),
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destroy_value); // deallocation function
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#endif
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#else
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return make_intrusive<ScriptInt>(v);
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#endif
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}
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// ----------------------------------------------------------------------------- : Booleans
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// Boolean values
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class ScriptBool : public ScriptValue {
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public:
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ScriptBool(bool v) : value(v) {}
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ScriptType type() const override { return SCRIPT_BOOL; }
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String typeName() const override { return _TYPE_("boolean"); }
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String toString() const override { return value ? _("true") : _("false"); }
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bool toBool() const override { return value; }
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// bools don't autoconvert to int
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private:
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bool value;
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};
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/* NOTE: previous versions used ScriptInts as booleans, this gives problems
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* when we use a pool allocator for them, because the pool is destroyed before these globals.
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*/
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ScriptValueP script_true (new ScriptBool(true));
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ScriptValueP script_false(new ScriptBool(false));
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// ----------------------------------------------------------------------------- : Doubles
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// Double values
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class ScriptDouble : public ScriptValue {
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public:
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ScriptDouble(double v) : value(v) {}
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ScriptType type() const override { return SCRIPT_DOUBLE; }
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String typeName() const override { return _TYPE_("double"); }
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String toString() const override { return String() << value; }
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double toDouble() const override { return value; }
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int toInt() const override { return (int)value; }
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private:
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double value;
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};
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ScriptValueP to_script(double v) {
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return make_intrusive<ScriptDouble>(v);
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}
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// ----------------------------------------------------------------------------- : String type
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String quote_string(String const& str) {
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String out;
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out.reserve(str.size() + 2);
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out += _('"');
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FOR_EACH_CONST(c, str) {
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if (c == _('"') || c == _('\\')) { out += _('\\'); out += c; }
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else if (c == _('\1')) out += _("\\<");
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else if (c == _('\n')) out += _("\\n");
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else if (c == _('\r')) out += _("\\r");
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else if (c == _('\t')) out += _("\\t");
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else out += c;
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}
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out += _('"');
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return out;
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}
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// String values
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class ScriptString : public ScriptValue {
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public:
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ScriptString(const String& v) : value(v) {}
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ScriptType type() const override { return SCRIPT_STRING; }
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String typeName() const override { return _TYPE_("string") + _(" (\"") + (value.size() < 30 ? value : value.substr(0,30) + _("...")) + _("\")"); }
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String toString() const override { return value; }
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String toCode() const override {
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return quote_string(value);
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}
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double toDouble() const override {
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double d;
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if (value.ToDouble(&d)) {
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return d;
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} else {
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throw ScriptErrorConversion(value, typeName(), _TYPE_("double"));
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}
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}
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int toInt() const override {
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long l;
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if (value.ToLong(&l)) {
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return l;
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} else {
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throw ScriptErrorConversion(value, typeName(), _TYPE_("integer"));
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}
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}
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bool toBool() const override {
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if (value == _("yes") || value == _("true")) {
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return true;
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} else if (value == _("no") || value == _("false") || value.empty()) {
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return false;
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} else {
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throw ScriptErrorConversion(value, typeName(), _TYPE_("boolean"));
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}
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}
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Color toColor() const override {
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optional<Color> c = parse_color(value);
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if (!c.has_value()) {
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throw ScriptErrorConversion(value, typeName(), _TYPE_("color"));
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}
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return *c;
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}
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wxDateTime toDateTime() const override {
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wxDateTime date;
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String::const_iterator end;
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if (!date.ParseDateTime(value,&end) || end != value.end()) {
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throw ScriptErrorConversion(value, typeName(), _TYPE_("date"));
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}
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return date;
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}
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GeneratedImageP toImage(const ScriptValueP&) const override {
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if (value.empty()) {
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return make_intrusive<BlankImage>();
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} else {
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return make_intrusive<PackagedImage>(value);
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}
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}
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int itemCount() const override { return (int)value.size(); }
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ScriptValueP getMember(const String& name) const override {
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// get member returns characters
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long index;
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if (name.ToLong(&index) && index >= 0 && (size_t)index < value.size()) {
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return to_script(String(1,value[index]));
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} else {
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return delay_error(_ERROR_2_("has no member value", value, name));
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}
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}
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private:
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String value;
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};
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ScriptValueP to_script(const String& v) {
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return make_intrusive<ScriptString>(v);
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}
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// ----------------------------------------------------------------------------- : Color
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// Color values
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class ScriptColor : public ScriptValue {
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public:
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ScriptColor(const Color& v) : value(v) {}
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ScriptType type() const override { return SCRIPT_COLOR; }
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String typeName() const override { return _TYPE_("color"); }
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Color toColor() const override { return value; }
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// colors don't auto convert to int, use to_int to force
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String toString() const override {
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return format_color(value);
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}
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private:
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Color value;
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};
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ScriptValueP to_script(Color v) {
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return make_intrusive<ScriptColor>(v);
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}
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// ----------------------------------------------------------------------------- : DateTime
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// wxDateTime values
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class ScriptDateTime : public ScriptValue {
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public:
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ScriptDateTime(const wxDateTime& v) : value(v) {}
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ScriptType type() const override { return SCRIPT_DATETIME; }
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String typeName() const override { return _TYPE_("date"); }
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wxDateTime toDateTime() const override { return value; }
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String toString() const override {
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return value.Format(_("%Y-%m-%d %H:%M:%S"));
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}
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private:
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wxDateTime value;
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};
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ScriptValueP to_script(wxDateTime v) {
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return make_intrusive<ScriptDateTime>(v);
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}
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// ----------------------------------------------------------------------------- : Nil type
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// the nil object
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class ScriptNil : public ScriptValue {
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public:
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ScriptType type() const override { return SCRIPT_NIL; }
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String typeName() const override { return _TYPE_("nil"); }
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String toString() const override { return String(); }
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double toDouble() const override { return 0.0; }
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int toInt() const override { return 0; }
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bool toBool() const override { return false; }
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Color toColor() const override { return wxTransparentColour; }
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GeneratedImageP toImage(const ScriptValueP&) const {
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return make_intrusive<BlankImage>();
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}
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String toCode() const override {
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return "nil";
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}
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ScriptValueP eval(Context& ctx, bool) const override {
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// nil(input) == input
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return ctx.getVariable(SCRIPT_VAR_input);
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}
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};
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/// The preallocated nil value
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ScriptValueP script_nil = make_intrusive<ScriptNil>();
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// ----------------------------------------------------------------------------- : Collection base
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String ScriptCollectionBase::toCode() const {
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String ret = _("[");
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bool first = true;
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ScriptValueP it = makeIterator();
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ScriptValueP key;
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int index = -1;
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while (ScriptValueP v = it->next(&key,&index)) {
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if (!first) ret += _(",");
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first = false;
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if (index == -1) {
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ret += key->toCode();
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ret += _(":");
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}
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ret += v->toCode();
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}
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ret += _("]");
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return ret;
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}
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// ----------------------------------------------------------------------------- : Custom collection
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// Iterator over a custom collection
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class ScriptCustomCollectionIterator : public ScriptIterator {
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public:
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ScriptCustomCollectionIterator(ScriptCustomCollection const* col, ScriptValueP const& col_owned)
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: col(col), col_owned(col_owned), pos(0), it(col->key_value.begin()) {}
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ScriptValueP next(ScriptValueP* key_out, int* index_out) override {
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if (pos < col->value.size()) {
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if (key_out) *key_out = to_script((int)pos);
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if (index_out) *index_out = (int)pos;
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return col->value.at(pos++);
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} else if (it != col->key_value.end()) {
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if (key_out) *key_out = to_script(it->first);
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if (index_out) *index_out = -1;
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return (it++)->second;
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} else {
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return ScriptValueP();
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}
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}
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private:
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ScriptCustomCollection const* col;
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ScriptValueP col_owned; // own the collection so it doesn't get deleted
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size_t pos;
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map<String,ScriptValueP>::const_iterator it;
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};
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ScriptValueP ScriptCustomCollection::getMember(const String& name) const {
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map<String,ScriptValueP>::const_iterator it = key_value.find(name);
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if (it != key_value.end()) {
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return it->second;
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} else {
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return ScriptValue::getMember(name);
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}
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}
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|
ScriptValueP ScriptCustomCollection::getIndex(int index) const {
|
|
if (index >= 0 && (size_t)index < value.size()) {
|
|
return value.at(index);
|
|
} else {
|
|
return ScriptValue::getIndex(index);
|
|
}
|
|
}
|
|
ScriptValueP ScriptCustomCollection::makeIterator(const ScriptValueP& thisP) const {
|
|
return make_intrusive<ScriptCustomCollectionIterator>(this, thisP);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------- : Concat collection
|
|
|
|
// Iterator over a concatenated collection
|
|
class ScriptConcatCollectionIterator : public ScriptIterator {
|
|
public:
|
|
ScriptConcatCollectionIterator(const ScriptValueP& itA, const ScriptValueP& itB)
|
|
: itA(itA), itB(itB) {}
|
|
ScriptValueP next(ScriptValueP* key_out, int* index_out) override {
|
|
if (itA) {
|
|
ScriptValueP v = itA->next(key_out, index_out);
|
|
if (v) return v;
|
|
else itA = ScriptValueP();
|
|
}
|
|
// TODO: somehow fix up the keys
|
|
return itB->next(key_out, index_out);
|
|
}
|
|
private:
|
|
ScriptValueP itA, itB;
|
|
};
|
|
|
|
ScriptValueP ScriptConcatCollection::getMember(const String& name) const {
|
|
ScriptValueP member = a->getMember(name);
|
|
if (member->type() != SCRIPT_ERROR) return member;
|
|
long index;
|
|
int itemsInA = a->itemCount();
|
|
if (name.ToLong(&index) && index - itemsInA >= 0 && index - itemsInA < b->itemCount()) {
|
|
// adjust integer index
|
|
return b->getMember(String() << (index - itemsInA));
|
|
} else {
|
|
return b->getMember(name);
|
|
}
|
|
}
|
|
ScriptValueP ScriptConcatCollection::getIndex(int index) const {
|
|
int itemsInA = a->itemCount();
|
|
if (index < itemsInA) {
|
|
return a->getIndex(index);
|
|
} else {
|
|
return b->getIndex(index - itemsInA);
|
|
}
|
|
}
|
|
ScriptValueP ScriptConcatCollection::makeIterator(const ScriptValueP& thisP) const {
|
|
return make_intrusive<ScriptConcatCollectionIterator>(a->makeIterator(a), b->makeIterator(b));
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------- : Default arguments / closure
|
|
|
|
ScriptType ScriptClosure::type() const {
|
|
return SCRIPT_FUNCTION;
|
|
}
|
|
String ScriptClosure::typeName() const {
|
|
return fun->typeName() + _(" closure");
|
|
}
|
|
|
|
void ScriptClosure::addBinding(Variable v, const ScriptValueP& value) {
|
|
bindings.push_back(make_pair(v,value));
|
|
}
|
|
ScriptValueP ScriptClosure::getBinding(Variable v) const {
|
|
FOR_EACH_CONST(b, bindings) {
|
|
if (b.first == v) return b.second;
|
|
}
|
|
return ScriptValueP();
|
|
}
|
|
|
|
ScriptValueP ScriptClosure::simplify() {
|
|
return fun->simplifyClosure(*this);
|
|
}
|
|
|
|
ScriptValueP ScriptClosure::eval(Context& ctx, bool openScope) const {
|
|
unique_ptr<LocalScope> scope = openScope ? make_unique<LocalScope>(ctx) : nullptr;
|
|
applyBindings(ctx);
|
|
return fun->eval(ctx, openScope);
|
|
}
|
|
ScriptValueP ScriptClosure::dependencies(Context& ctx, const Dependency& dep) const {
|
|
LocalScope scope(ctx);
|
|
applyBindings(ctx);
|
|
return fun->dependencies(ctx, dep);
|
|
}
|
|
void ScriptClosure::applyBindings(Context& ctx) const {
|
|
FOR_EACH_CONST(b, bindings) {
|
|
if (ctx.getVariableScope(b.first) != 0) {
|
|
// variables passed as arguments (i.e. in scope 0) override these default bindings
|
|
ctx.setVariable(b.first, b.second);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
ScriptType ScriptRule::type() const { return SCRIPT_FUNCTION; }
|
|
String ScriptRule::typeName() const { return fun->typeName() + _("_rule"); }
|
|
ScriptValueP ScriptRule::eval(Context& ctx, bool openScope) const {
|
|
return ctx.makeClosure(fun);
|
|
}
|