private static if_node CreateIfCondition(syntax_tree_visitor syntax_tree_visitor, statements_list ifthen, statements_list ifelse, location loc)
{
//сохраняем контекст
ContextInfo contextInfo = new ContextInfo(syntax_tree_visitor);
if_node res = null;
try
{
SyntaxTree.if_node if_node = new PascalABCCompiler.SyntaxTree.if_node();
SyntaxTree.un_expr une = new PascalABCCompiler.SyntaxTree.un_expr();
une.operation_type = SyntaxTree.Operators.LogicalNOT;
une.subnode = new SyntaxTree.ident(InParallelSection);
if_node.condition = une;
if_node.then_body = new SyntaxTree.empty_statement();
if_node.then_body = new SyntaxTree.empty_statement();
res = syntax_tree_visitor.convert_strong(if_node) as if_node;
res.then_body = ifthen;
res.else_body = ifelse;
res.location = loc;
}
finally
{
//восстанавливаем контекст
contextInfo.RestoreContext(syntax_tree_visitor);
}
return res;
}
private static SyntaxTree.if_node CreateNestedRegionBorder(bool ifEnter)
{
SyntaxTree.if_node result = new PascalABCCompiler.SyntaxTree.if_node();
SyntaxTree.un_expr ue = new PascalABCCompiler.SyntaxTree.un_expr();
ue.operation_type = PascalABCCompiler.SyntaxTree.Operators.LogicalNOT;
ue.subnode = new SyntaxTree.ident(TreeConverter.compiler_string_consts.OMP_NESTED);
result.condition = ue;
SyntaxTree.assign AssignInParVar = new PascalABCCompiler.SyntaxTree.assign();
AssignInParVar.operator_type = PascalABCCompiler.SyntaxTree.Operators.Assignment;
AssignInParVar.from = new SyntaxTree.ident(ifEnter ? "true" : "false");
AssignInParVar.to = new SyntaxTree.ident(InParallelSection);
result.then_body = AssignInParVar;
return result;
}
private static SyntaxTree.procedure_definition CreateMethod(string MethodName, SyntaxTree.statement Body, string LoopVariableName, SyntaxTree.class_members ClassMember, VarInfoContainer Vars)
{
// генерация метода
SyntaxTree.procedure_definition ProcDef = new PascalABCCompiler.SyntaxTree.procedure_definition();
//ClassMember.members.Add(ProcDef);
SyntaxTree.procedure_header ProcHead = new PascalABCCompiler.SyntaxTree.procedure_header();
ProcDef.proc_header = ProcHead;
ProcHead.name = new PascalABCCompiler.SyntaxTree.method_name(null, null, new PascalABCCompiler.SyntaxTree.ident(MethodName), null);
if (LoopVariableName != "")
{
// параметр, счетчик цикла
string ParamType = "integer";
SyntaxTree.formal_parameters FormalParams = new PascalABCCompiler.SyntaxTree.formal_parameters();
ProcHead.parameters = FormalParams;
SyntaxTree.typed_parameters TypedParams = new PascalABCCompiler.SyntaxTree.typed_parameters();
FormalParams.params_list.Add(TypedParams);
SyntaxTree.ident_list idl = new PascalABCCompiler.SyntaxTree.ident_list();
TypedParams.idents = idl;
idl.Add(new SyntaxTree.ident(LoopVariableName));
SyntaxTree.named_type_reference ntr = new PascalABCCompiler.SyntaxTree.named_type_reference();
TypedParams.vars_type = ntr;
ntr.Add(new SyntaxTree.ident(ParamType));
}
SyntaxTree.block ProcBlock = new PascalABCCompiler.SyntaxTree.block();
ProcDef.proc_body = ProcBlock;
ProcBlock.defs = new PascalABCCompiler.SyntaxTree.declarations();
if (Vars.Constants.Count > 0)
{
SyntaxTree.consts_definitions_list cdl = new PascalABCCompiler.SyntaxTree.consts_definitions_list();
ProcBlock.defs.defs.Add(cdl);
// константы - в методе
for (int i = 0; i < Vars.Constants.Count; ++i)
cdl.Add(CreateClassMember(Vars.Constants[i], "") as SyntaxTree.typed_const_definition);
}
if ((Vars.ReductionVariables.Count > 0) || (Vars.PrivateVariables.Count > 0))
{
// переменные редукции - в методе тоже, но без префикса
SyntaxTree.variable_definitions vds = new PascalABCCompiler.SyntaxTree.variable_definitions();
ProcBlock.defs.defs.Add(vds);
for (int i = 0; i < Vars.ReductionVariables.Count; ++i)
vds.Add(CreateClassMember(Vars.ReductionVariables[i], "") as SyntaxTree.var_def_statement);
// и приватные переменные
for (int i = 0; i < Vars.PrivateVariables.Count; ++i)
vds.Add(CreateClassMember(Vars.PrivateVariables[i], "") as SyntaxTree.var_def_statement);
}
if (Body is SyntaxTree.statement_list)
ProcBlock.program_code = Body as SyntaxTree.statement_list;
else
{
SyntaxTree.statement_list stl = new PascalABCCompiler.SyntaxTree.statement_list();
stl.subnodes.Add(Body);
ProcBlock.program_code = stl;
}
//присваивания для переменных редукции
if (Vars.ReductionVariables.Count > 0)
{
SyntaxTree.statement_list LoopBodyInit = new PascalABCCompiler.SyntaxTree.statement_list();
SyntaxTree.statement_list LoopBodyFinal = new PascalABCCompiler.SyntaxTree.statement_list();
for (int i = 0; i < Vars.ReductionVariables.Count; ++i)
{
//присваивание начального значения
SyntaxTree.assign Assign = new PascalABCCompiler.SyntaxTree.assign();
Assign.operator_type = PascalABCCompiler.SyntaxTree.Operators.Assignment;
Assign.to = new SyntaxTree.ident(Vars.ReductionVariables[i].name);
bool isBool = Vars.ReductionVariables[i].type.name.ToLower() == "boolean";
switch (Vars.ReductionActions[i])
{
case ReductionOperations.and:
{
if (isBool)
Assign.from = new SyntaxTree.bool_const(true);
else
{
//отрицание нуля
Assign.from = new SyntaxTree.int32_const(0);
LoopBodyInit.subnodes.Add(Assign);
Assign = new PascalABCCompiler.SyntaxTree.assign();
Assign.operator_type = PascalABCCompiler.SyntaxTree.Operators.Assignment;
Assign.to = new SyntaxTree.ident(Vars.ReductionVariables[i].name);
SyntaxTree.un_expr ue = new PascalABCCompiler.SyntaxTree.un_expr();
ue.operation_type = PascalABCCompiler.SyntaxTree.Operators.LogicalNOT;
ue.subnode = new SyntaxTree.ident(Vars.ReductionVariables[i].name);
Assign.from = ue;
}
break;
}
case ReductionOperations.or:
if (isBool)
Assign.from = new SyntaxTree.bool_const(false);
else
{
Assign.from = new SyntaxTree.int32_const(0);
}
break;
case ReductionOperations.xor: //
case ReductionOperations.plus: //см следующую ветку
case ReductionOperations.minus: Assign.from = new SyntaxTree.int32_const(0); break;
case ReductionOperations.mult: Assign.from = new SyntaxTree.int32_const(1); break;
}
LoopBodyInit.Add(Assign);
//присваивание после итерации
Assign = new PascalABCCompiler.SyntaxTree.assign();
Assign.operator_type = PascalABCCompiler.SyntaxTree.Operators.Assignment;
Assign.to = new SyntaxTree.ident("$" + Vars.ReductionVariables[i].name);
SyntaxTree.bin_expr From = new PascalABCCompiler.SyntaxTree.bin_expr();
From.left = new SyntaxTree.ident("$" + Vars.ReductionVariables[i].name);
From.right = new SyntaxTree.ident(Vars.ReductionVariables[i].name);
Assign.from = From;
switch (Vars.ReductionActions[i])
{
case ReductionOperations.and: From.operation_type = PascalABCCompiler.SyntaxTree.Operators.LogicalAND; break;
case ReductionOperations.or: From.operation_type = PascalABCCompiler.SyntaxTree.Operators.LogicalOR; break;
case ReductionOperations.xor: From.operation_type = PascalABCCompiler.SyntaxTree.Operators.BitwiseXOR; break;
case ReductionOperations.plus: From.operation_type = PascalABCCompiler.SyntaxTree.Operators.Plus; break;
case ReductionOperations.minus: From.operation_type = PascalABCCompiler.SyntaxTree.Operators.Minus; break;
case ReductionOperations.mult: From.operation_type = PascalABCCompiler.SyntaxTree.Operators.Multiplication; break;
}
LoopBodyFinal.Add(Assign);
}
//создаем обьект для блокировки в классе
SyntaxTree.var_def_statement Lvds = new PascalABCCompiler.SyntaxTree.var_def_statement();
SyntaxTree.ident_list Lidl = new PascalABCCompiler.SyntaxTree.ident_list();
Lvds.vars = Lidl;
Lidl.Add(new SyntaxTree.ident("$ReductionLock"));
SyntaxTree.named_type_reference Lntr = new PascalABCCompiler.SyntaxTree.named_type_reference();
Lvds.vars_type = Lntr;
Lntr.Add(new SyntaxTree.ident("object"));
SyntaxTree.new_expr Lne = new PascalABCCompiler.SyntaxTree.new_expr();
Lvds.inital_value = Lne;
Lne.type = Lntr;
ClassMember.members.Add(Lvds);
//создаем lock Statement на обьекте с присваиваниями в конце итерации
SyntaxTree.lock_stmt reductionLock = new PascalABCCompiler.SyntaxTree.lock_stmt();
reductionLock.lock_object = new SyntaxTree.ident("$ReductionLock");
reductionLock.stmt = LoopBodyFinal;
//собираем все вместе и присваиваем это телу процедуры
LoopBodyInit.subnodes.AddRange(ProcBlock.program_code.subnodes);
LoopBodyInit.subnodes.Add(reductionLock);
ProcBlock.program_code = LoopBodyInit;
}
return ProcDef;
}