public override void visit(double_question_node dqn)
{
var st = dqn.Parent;
while (!(st is statement))
{
st = st.Parent;
}
var tname = "#temp" + UniqueNumStr();
var tt = new var_statement(new ident(tname), dqn.left);
tt.var_def.Parent = tt;
var l = new List <statement>();
l.Add(tt);
l.Add(st as statement);
expression right = dqn.right;
var eq = new bin_expr(new ident(tname), new nil_const(), Operators.NotEqual, dqn.left.source_context);
var qce = new question_colon_expression(eq, new ident(tname), right, dqn.source_context);
ReplaceUsingParent(dqn, qce);
visit(qce);
ReplaceStatementUsingParent(st as statement, l);
visit(tt);
}
public static procedure_definition BuildToStringFuncForAutoClass(List <ident> names)
{
var pal = new procedure_attributes_list(proc_attribute.attr_override);
var fp = new formal_parameters();
var ff = new function_header("ToString", "string", fp, pal);
var cleft = new char_const('(');
var cright = new char_const(')');
var ccomma = new char_const(',');
bin_expr ex = new bin_expr(cleft, cright, Operators.Plus);
for (var i = 0; i < names.Count; i++)
{
var dn = new dot_node(names[i], new ident("ToString"));
var asnode = new typecast_node(names[i], new named_type_reference("object"), op_typecast.as_op);
var eqnode = new bin_expr(asnode, new nil_const(), Operators.Equal);
var expr = new question_colon_expression(eqnode, new string_const("nil"), dn);
ex.left = new bin_expr(ex.left, expr, Operators.Plus);
if (i < names.Count - 1)
{
ex.left = new bin_expr(ex.left, ccomma, Operators.Plus);
}
}
var ass = new assign("Result", ex);
return(BuildShortProcFuncDefinitionNoSC(ff, ass));
}
public statement MyStmt(expression ex, statement st)
{
// Проверить, что в ex - целый тип
// Сделать специальный узел для проверки new semantic_check("Тип проверки",params syntax_node[] ob)
// Включать этот узел первым для "сахарных" узлов синтаксического дерева
var sc = new semantic_check("ExprIsInteger", ex);
var id = new ident("#my");
var idlist = new ident_list(id);
var typ = new named_type_reference("integer");
var one = new int32_const(1);
var vdef = new var_def_statement(idlist, typ, one, definition_attribute.None, false, null);
var vstat = new var_statement(vdef, null);
var ass = new assign(new ident("#my"), one, Operators.AssignmentAddition);
var stlistwhile = new statement_list(st);
stlistwhile.Add(ass);
var bin = new bin_expr(id, ex, Operators.LessEqual);
var wh = new while_node(bin, stlistwhile, WhileCycleType.While);
var stlist = new statement_list(sc);
stlist.Add(vstat);
stlist.Add(wh);
return(stlist);
}
public override void visit(bin_expr _bin_expr)
{
executer.visit(_bin_expr);
if (_bin_expr.left != null)
this.visit((dynamic)_bin_expr.left);
if (_bin_expr.right != null)
this.visit((dynamic)_bin_expr.right);
if (_bin_expr.attributes != null)
this.visit((dynamic)_bin_expr.attributes);
}
public override void visit(bin_expr ex)
{
if (ex.operation_type == Operators.In && ex.right is diapason_expr_new diap && ex.left is addressed_value exl)
{
var el = new expression_list();
el.Add(exl, exl.source_context);
el.Add(diap.left, diap.left.source_context);
el.Add(diap.right, diap.right.source_context);
var mc = method_call.NewP(new ident("InRangeInternal", exl.source_context), el, exl.source_context);
var sug = sugared_addressed_value.NewP(ex, mc, ex.source_context);
ReplaceUsingParent(ex, sug);
visit(mc); // обойти заменённое на предмет наличия такого же синтаксического сахара
}
/*public question_colon_expression ConvertToQCE1(dot_question_node dqn)
* {
* addressed_value left = dqn.left;
* addressed_value right = dqn.right;
*
* var eq = new bin_expr(left, new nil_const(), Operators.Equal, left.source_context);
*
* var nr = Into(left, right);
*
* var q = new question_colon_expression(eq, new nil_const(), nr, dqn.source_context);
* nr.Parent = q;
* return q;
* }*/
public question_colon_expression ConvertToQCE1(dot_question_node dqn, string name)
{
addressed_value right = dqn.right;
var eq = new bin_expr(new ident(name), new nil_const(), Operators.Equal, dqn.left.source_context);
var nr = Into(new ident(name), right);
var q = new question_colon_expression(eq, new nil_const(), nr, dqn.source_context);
nr.Parent = q;
return(q);
}
public question_colon_expression ConvertToQCE(dot_question_node dqn)
{
addressed_value left = dqn.left;
addressed_value right = dqn.right;
var eq = new bin_expr(left, new nil_const(), Operators.Equal, left.source_context);
addressed_value dn = null;
var dnleft = right; // Левая часть dn
addressed_value rdqn = null;
addressed_value ldqn = null;
// Если right - это dot_question_node, то протащить внутрь него left. В силу ассоциирования слева направо достаточно на первый уровень.
if (right.GetType() == typeof(dot_question_node))
{
var dqn_int = right as dot_question_node;
ldqn = dqn_int.left;
dnleft = ldqn;
rdqn = dqn_int.right;
// необходимо left протащить внутрь в ldqn
}
// Пока right - это dot_node, то необходимо протаскивать left чтобы присоединить его к первому не dot_node
while (dnleft.GetType() == typeof(dot_node))
{
dn = dnleft;
dnleft = (dnleft as dot_node).left;
}
// В итоге в dnleft - самый внутренний left, который уже не является dot_node
dnleft = new dot_node(left, dnleft, left.source_context); // Прикрепили right к самому внутреннему левому узлу в нотации a.b.c.d
if (dn != null)
{
(dn as dot_node).left = dnleft;
}
else if (rdqn == null)
{
right = dnleft;
}
else
{
right = new dot_question_node(dnleft, (right as dot_question_node).right, dnleft.source_context);
}
var q = new question_colon_expression(eq, new nil_const(), right, dqn.source_context);
right.Parent = q;
return(q);
}
private expression CreateConditionFromCaseVariant(expression param, expression_list list)
{
var res = list.expressions.Aggregate(new bool_const(false) as expression, (acc, expr) =>
{
bin_expr currentExpr = null;
diapason_expr diap = expr as diapason_expr;
if (diap != null)
{
currentExpr = new bin_expr(new bin_expr(param, diap.left, Operators.GreaterEqual),
new bin_expr(param, diap.right, Operators.LessEqual),
Operators.LogicalAND);
}
else
{
currentExpr = new bin_expr(param, expr, Operators.Equal);
}
return(new bin_expr(acc, currentExpr, Operators.LogicalOR));
});
return(res);
}
protected bool HasExtendedIs(bin_expr expr)
{
if (expr.left is bin_expr leftBinExpr &&
expr.right is bin_expr rightBinExpr)
{
return(HasExtendedIs(leftBinExpr) || HasExtendedIs(rightBinExpr));
}
if (expr.left is is_pattern_expr ||
expr.right is is_pattern_expr)
{
return(true);
}
if (expr.left is bin_expr lBinExpr)
{
return(HasExtendedIs(lBinExpr));
}
if (expr.right is bin_expr rBinExpr)
{
return(HasExtendedIs(rBinExpr));
}
return(false);
}
public virtual void visit(bin_expr _bin_expr)
{
DefaultVisit(_bin_expr);
}
public virtual void post_do_visit(bin_expr _bin_expr)
{
}
public override void visit(bin_expr _bin_expr)
{
DefaultVisit(_bin_expr);
pre_do_visit(_bin_expr);
visit(bin_expr.left);
visit(bin_expr.right);
post_do_visit(_bin_expr);
}
public override void Exit(syntax_tree_node st)
{
bracket_expr bre = st as bracket_expr;
if (bre != null)
{
if (bre.expr is int32_const)
{
Replace(st, bre.expr);
}
}
bin_expr vs = st as bin_expr;
if (vs != null)
{
if (vs.left is int32_const && vs.right is int32_const)
{
var a = vs.left as int32_const;
var b = vs.right as int32_const;
var op = vs.operation_type;
syntax_tree_node res;
switch (op)
{
case Operators.Plus:
res = new int32_const(a.val + b.val);
break;
case Operators.Minus:
res = new int32_const(a.val - b.val);
break;
case Operators.Multiplication:
res = new int32_const(a.val * b.val);
break;
case Operators.Division:
res = new double_const((double)a.val / b.val);
break;
case Operators.Greater:
res = new bool_const(a.val > b.val);
break;
case Operators.Less:
res = new bool_const(a.val < b.val);
break;
case Operators.GreaterEqual:
res = new bool_const(a.val >= b.val);
break;
case Operators.LessEqual:
res = new bool_const(a.val <= b.val);
break;
default:
res = vs;
break;
}
Replace(vs, res);
}
if (vs.left is int32_const && vs.right is double_const || vs.right is int32_const && vs.left is double_const || vs.left is double_const && vs.right is double_const)
{
double x, y;
if (vs.left is int32_const)
{
x = (vs.left as int32_const).val;
}
else
{
x = (vs.left as double_const).val;
}
if (vs.right is int32_const)
{
y = (vs.right as int32_const).val;
}
else
{
y = (vs.right as double_const).val;
}
var op = vs.operation_type;
syntax_tree_node res;
switch (op)
{
case Operators.Plus:
res = new double_const(x + y);
break;
case Operators.Minus:
res = new double_const(x - y);
break;
case Operators.Multiplication:
res = new double_const(x * y);
break;
case Operators.Division:
res = new double_const(x / y);
break;
case Operators.Greater:
res = new bool_const(x > y);
break;
case Operators.Less:
res = new bool_const(x < y);
break;
case Operators.GreaterEqual:
res = new bool_const(x >= y);
break;
case Operators.LessEqual:
res = new bool_const(x <= y);
break;
default:
res = vs;
break;
}
Replace(vs, res);
}
}
base.Exit(st); // это обязательно!
}
public virtual void visit(bin_expr _bin_expr)
{
}
public override void visit(bin_expr node)
{
node.left.visit(this);
int left = intStack.Pop();
node.right.visit(this);
int right = intStack.Pop();
switch (node.operation_type)
{
case Operators.Minus:
intStack.Push(left - right);
break;
case Operators.Plus:
intStack.Push(left + right);
break;
case Operators.Multiplication:
intStack.Push(left * right);
break;
case Operators.Division:
intStack.Push(left / right);
break;
case Operators.Greater:
intStack.Push(left > right ? 1 : 0);
break;
case Operators.Less:
intStack.Push(left < right ? 1 : 0);
break;
case Operators.GreaterEqual:
intStack.Push(left >= right ? 1 : 0);
break;
case Operators.LessEqual:
intStack.Push(left <= right ? 1 : 0);
break;
case Operators.Equal:
intStack.Push(left == right ? 1 : 0);
break;
case Operators.NotEqual:
intStack.Push(left != right ? 1 : 0);
break;
case Operators.BitwiseLeftShift:
intStack.Push(left << right);
break;
case Operators.BitwiseRightShift:
intStack.Push(left >> right);
break;
case Operators.BitwiseAND:
intStack.Push(left & right);
break;
case Operators.BitwiseOR:
intStack.Push(left | right);
break;
case Operators.BitwiseXOR:
intStack.Push(left ^ right);
break;
default:
throw new InvalidIntegerExpression();
}
}
public override void visit(bin_expr _bin_expr)
{
_bin_expr.left.visit(this);
_bin_expr.right.visit(this);
}
public override void visit(bin_expr n)
{
fs.WriteLine(n.GetType().Name + " " + n.operation_type);
base.DefaultVisit(n);
}
private CollectionDesugaringResult DesugarCollectionPattern(collection_pattern pattern, expression matchingExpression)
{
Debug.Assert(!pattern.IsRecursive, "All recursive patterns should be desugared into simple patterns at this point");
var desugaringResult = new CollectionDesugaringResult();
var collectionItems = pattern.parameters;
var gapItemMet = false;
var gapIndex = 0;
var exprBeforeGap = new List <pattern_parameter>();
var exprAfterGap = new List <pattern_parameter>();
for (int i = 0; i < collectionItems.Count; ++i)
{
if (collectionItems[i] is collection_pattern_gap_parameter)
{
if (gapItemMet)
{
throw new SyntaxVisitorError("REPEATED_DOTDOT_COLLECTION_PATTERN_EXPR",
pattern.source_context);
}
gapItemMet = true;
gapIndex = i;
continue;
}
if (gapItemMet)
{
exprAfterGap.Insert(0, collectionItems[i]);
}
else
{
exprBeforeGap.Add(collectionItems[i]);
}
}
var successMatchingCheck = GetCollectionItemsEqualCheckBeforeGap(
matchingExpression as addressed_value, exprBeforeGap, desugaringResult);
if (gapItemMet && exprAfterGap.Count != 0)
{
var afterGapEqual = GetCollectionItemsEqualCheckAfterGap(
matchingExpression as addressed_value, exprAfterGap, desugaringResult);
if (afterGapEqual != null)
{
successMatchingCheck = successMatchingCheck == null ?
afterGapEqual :
bin_expr.LogicalAnd(successMatchingCheck, afterGapEqual);
}
}
// если добавлять в and, то все равно ран тайм эррор, будто вычисляет все, даже если первое = false
desugaringResult.CollectionLengthCheck = new bin_expr(
new dot_node(matchingExpression as addressed_value, new ident(CountPropertyName), pattern.source_context),
new int32_const(exprBeforeGap.Count + exprAfterGap.Count),
Operators.GreaterEqual,
pattern.source_context
);
if (!gapItemMet)
{
var lengthWithoutGapCheck = new bin_expr(
new dot_node(matchingExpression as addressed_value, new ident(CountPropertyName), pattern.source_context),
new int32_const(exprBeforeGap.Count),
Operators.Equal,
pattern.source_context
);
successMatchingCheck = successMatchingCheck == null ?
lengthWithoutGapCheck :
bin_expr.LogicalAnd(lengthWithoutGapCheck, successMatchingCheck);
}
desugaringResult.SuccessMatchingCheck = successMatchingCheck == null ?
new bool_const(true) :
successMatchingCheck;
return(desugaringResult);
}
public override void visit(bin_expr _bin_expr)
{
text = "operator_type: " + _bin_expr.operation_type.ToString();
}
public override void visit(bin_expr _bin_expr)
{
prepare_node(_bin_expr.left, "left");
prepare_node(_bin_expr.right, "right");
}
public virtual void visit(bin_expr _bin_expr)
{
}
public virtual void visit(bin_expr _bin_expr)
{
DefaultVisit(_bin_expr);
}