Stmt *new_stmt(StmtKind kind, SrcPos pos)
{
var s = (Stmt *)ast_alloc(sizeof(Stmt));
s->pos = pos;
s->kind = kind;
return(s);
}
Stmt new_stmt(StmtKind kind, SrcPos pos)
{
var s = new Stmt();
s.pos = pos;
s.kind = kind;
return(s);
}
public StmtState(string regBegin, string regEnd, string memBegin, string memEnd)
{
this.regBegin = regBegin;
this.regEnd = regEnd;
this.memBegin = memBegin;
this.memEnd = memEnd;
stmtKind = StmtKind.Other;
indenter = null;
}
/// <summary>
/// create a new statment node
/// </summary>
/// <param name="kind"></param>
/// <param name="name"></param>
/// <param name="Linenum"></param>
/// <param name="scope"></param>
public TreeNode(StmtKind kind, string name, int Linenum, string scope)
: this()
{
this.NodeKind = NodeKind.stmtK;
this.Kind = kind;
this.Type = TokenType.NONE;
this.Name = name;
this.LineNum = Linenum;
this.Scope = scope;
}
public TreeNode(StmtKind stmtkind) // creates a TreeNode of Stmd kind
{
childrens = new TreeNode[3];
for (int i = 0; i < 3; i++)
{
childrens[i] = null;
}
nodekind = NodeKind.StmtK;
this.stmtkind = stmtkind;
}
/// <summary>
/// create a new statment node
/// </summary>
/// <param name="kind"></param>
/// <param name="name"></param>
/// <param name="Linenum"></param>
/// <param name="scope"></param>
public TreeNode(StmtKind kind, string name, int Linenum, string scope)
: this()
{
this.NodeKind = NodeKind.stmtK;
this.Kind = kind;
this.Type = TokenType.NONE;
this.Name = name;
this.LineNum = Linenum;
this.Scope = scope;
}
void SetKind(FileWriter writer, StmtKind kind)
{
if (kind == stmtKind)
{
return;
}
indenter?.Dispose();
indenter = null;
switch (stmtKind)
{
case StmtKind.Other:
break;
case StmtKind.Register:
writer.WriteLine(regEnd);
break;
case StmtKind.Memory:
writer.WriteLine(memEnd);
break;
default:
throw new InvalidOperationException();
}
switch (kind)
{
case StmtKind.Other:
break;
case StmtKind.Register:
writer.WriteLine(regBegin);
indenter = writer.Indent();
break;
case StmtKind.Memory:
writer.WriteLine(memBegin);
indenter = writer.Indent();
break;
default:
throw new InvalidOperationException();
}
stmtKind = kind;
}
TreeNode newStmtNode(StmtKind kind)
{
TreeNode t = new TreeNode();
int i;
if (t == null)
{
Console.Write("Out of memory error at line %d\n");
}
else
{
for (i = 0; i < MAXCHILDREN; i++)
{
t.child.Add(null);
}
t.sibling = null;
t.nodekind = NodeKind.StmtK;
t.kind.stmt = kind;
}
return(t);
}
internal static void statements(this TextWriter trapFile, Statement stmt, StmtKind kind)
{
trapFile.WriteTuple("statements", stmt, (int)kind);
}
internal static Tuple statements(Statement stmt, StmtKind kind) => new Tuple("statements", stmt, kind);