/// <summary>
/// while文のコンパイル
/// </summary>
/// <param name="ilgen">IL Generator</param>
/// <param name="stmt">while文</param>
static void CompileWhileStmt(ILGenerator ilgen, MWhileStmt stmt)
{
var l1 = ilgen.DefineLabel();
var l2 = ilgen.DefineLabel();
ilgen.MarkLabel(l1);
CompileExpr(ilgen, stmt.Cond);
ilgen.Emit(OpCodes.Brfalse, l2);
CompileStmt(ilgen, stmt.Body);
ilgen.Emit(OpCodes.Br, l1);
ilgen.MarkLabel(l2);
}
/// <summary>
/// while文の型推論
/// </summary>
/// <param name="stmt">while文</param>
static void TypeinfWhileStmt(MWhileStmt stmt)
{
TypeinfExpr(stmt.Cond);
Unification(stmt.Pos, stmt.Cond.Type, new DotNetType(typeof(bool)));
TypeinfStmt(stmt.Body);
}