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1 -- CA13A02.A
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2 --
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3 -- Grant of Unlimited Rights
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4 --
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5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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7 -- unlimited rights in the software and documentation contained herein.
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8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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9 -- this public release, the Government intends to confer upon all
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10 -- recipients unlimited rights equal to those held by the Government.
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11 -- These rights include rights to use, duplicate, release or disclose the
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12 -- released technical data and computer software in whole or in part, in
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13 -- any manner and for any purpose whatsoever, and to have or permit others
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14 -- to do so.
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15 --
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16 -- DISCLAIMER
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17 --
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18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
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24 --*
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25 --
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26 -- OBJECTIVE:
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27 -- Check that subunits declared in generic child units of a public
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28 -- parent have the same visibility into its parent, its siblings
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29 -- (public and private), and packages on which its parent depends
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30 -- as is available at the point of their declaration.
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31 --
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32 -- TEST DESCRIPTION:
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33 -- Declare an outside elevator button operation as a subunit in a
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34 -- generic child package of the basic operation package (FA13A00.A).
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35 -- This procedure has visibility into its parent ancestor and its
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36 -- private sibling.
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37 --
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38 -- In the main program, instantiate the child package. Check that
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39 -- subunits perform as expected.
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40 --
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41 -- TEST FILES:
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42 -- The following files comprise this test:
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43 --
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44 -- FA13A00.A
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45 -- CA13A02.A
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46 --
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47 --
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48 -- CHANGE HISTORY:
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49 -- 06 Dec 94 SAIC ACVC 2.0
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50 --
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51 --!
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52
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53 -- Public generic child package of an elevator application. This package
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54 -- provides outside elevator button operations.
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55
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56 generic -- Instantiate once for each floor.
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57 Our_Floor : in Floor; -- Reference type declared in parent.
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58
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59 package FA13A00_1.CA13A02_4 is -- Outside Elevator Button Operations
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60
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61 type Light is (Up, Down, Express, Off);
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62
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63 type Direction is (Up, Down, Express);
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64
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65 function Call_Elevator (D : Direction) return Light;
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66
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67 -- other type definitions and procedure declarations in real application.
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68
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69 end FA13A00_1.CA13A02_4;
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70
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71 --==================================================================--
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72
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73 -- Context clauses required for visibility needed by separate subunit.
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74
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75 with FA13A00_0; -- Building Manager
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76
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77 with FA13A00_1.FA13A00_2; -- Floor Calculation (private)
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78
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79 with FA13A00_1.FA13A00_3; -- Move Elevator
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80
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81 use FA13A00_0;
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82
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83 package body FA13A00_1.CA13A02_4 is
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84
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85 function Call_Elevator (D : Direction) return Light is separate;
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86
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87 end FA13A00_1.CA13A02_4;
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88
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89 --==================================================================--
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90
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91 separate (FA13A00_1.CA13A02_4)
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92
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93 -- Subunit Call_Elevator declared in Outside Elevator Button Operations.
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94
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95 function Call_Elevator (D : Direction) return Light is
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96 Elevator_Button : Light;
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97
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98 begin
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99 -- See if power is on.
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100
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101 if Power = Off then -- Reference package with'ed by
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102 Elevator_Button := Off; -- the subunit parent's body.
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103
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104 else
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105 case D is
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106 when Express =>
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107 FA13A00_1.FA13A00_3.Move_Elevator -- Reference public sibling of
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108 (Penthouse, Call_Waiting); -- the subunit parent's body.
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109
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110 Elevator_Button := Express;
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111
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112 when Up =>
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113 if Current_Floor < Our_Floor then
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114 FA13A00_1.FA13A00_2.Up -- Reference private sibling of
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115 (Floor'pos (Our_Floor) -- the subunit parent's body.
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116 - Floor'pos (Current_Floor));
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117 else
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118 FA13A00_1.FA13A00_2.Down -- Reference private sibling of
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119 (Floor'pos (Current_Floor) -- the subunit parent's body.
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120 - Floor'pos (Our_Floor));
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121 end if;
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122
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123 -- Call elevator.
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124
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125 Call
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126 (Current_Floor, Call_Waiting); -- Reference subprogram declared
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127 -- in the parent of the subunit
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128 -- parent's body.
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129 Elevator_Button := Up;
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130
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131 when Down =>
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132 if Current_Floor > Our_Floor then
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133 FA13A00_1.FA13A00_2.Down -- Reference private sibling of
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134 (Floor'pos (Current_Floor) -- the subunit parent's body.
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135 - Floor'pos (Our_Floor));
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136 else
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137 FA13A00_1.FA13A00_2.Up -- Reference private sibling of
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138 (Floor'pos (Our_Floor) -- the subunit parent's body.
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139 - Floor'pos (Current_Floor));
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140 end if;
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141
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142 Elevator_Button := Down;
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143
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144 -- Call elevator.
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145
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146 Call
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147 (Current_Floor, Call_Waiting); -- Reference subprogram declared
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148 -- in the parent of the subunit
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149 -- parent's body.
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150 end case;
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151
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152 if not Call_Waiting (Current_Floor) -- Reference private part of the
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153 then -- parent of the subunit parent's
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154 -- body.
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155 TC_Operation := false;
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156 end if;
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157
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158 end if;
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159
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160 return Elevator_Button;
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161
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162 end Call_Elevator;
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163
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164 --==================================================================--
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165
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166 with FA13A00_1.CA13A02_4; -- Outside Elevator Button Operations
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167 -- implicitly with Basic Elevator
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168 -- Operations
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169 with Report;
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170
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171 procedure CA13A02 is
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172
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173 begin
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174
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175 Report.Test ("CA13A02", "Check that subunits declared in generic child " &
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176 "units of a public parent have the same visibility into " &
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177 "its parent, its parent's siblings, and packages on " &
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178 "which its parent depends");
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179
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180 -- Going from floor one to penthouse.
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181
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182 Going_To_Penthouse:
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183 declare
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184 -- Declare instance of the child generic elevator package for penthouse.
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185
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186 package Call_Elevator_Pkg is new FA13A00_1.CA13A02_4
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187 (FA13A00_1.Penthouse);
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188
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189 use Call_Elevator_Pkg;
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190
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191 Call_Button_Light : Light;
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192
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193 begin
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194
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195 Call_Button_Light := Call_Elevator (Express);
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196
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197 if not FA13A00_1.TC_Operation or Call_Button_Light /= Express then
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198 Report.Failed ("Incorrect elevator operation going to penthouse");
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199 end if;
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200
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201 end Going_To_Penthouse;
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202
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203 -- Going from penthouse to basement.
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204
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205 Going_To_Basement:
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206 declare
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207 -- Declare instance of the child generic elevator package for basement.
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208
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209 package Call_Elevator_Pkg is new FA13A00_1.CA13A02_4
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210 (FA13A00_1.Basement);
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211
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212 use Call_Elevator_Pkg;
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213
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214 Call_Button_Light : Light;
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215
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216 begin
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217
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218 Call_Button_Light := Call_Elevator (Down);
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219
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220 if not FA13A00_1.TC_Operation or Call_Button_Light /= Down then
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221 Report.Failed ("Incorrect elevator operation going to basement");
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222 end if;
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223
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224 end Going_To_Basement;
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225
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226 -- Going from basement to floor three.
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227
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228 Going_To_Floor3:
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229 declare
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230 -- Declare instance of the child generic elevator package for floor
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231 -- three.
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232
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233 package Call_Elevator_Pkg is new FA13A00_1.CA13A02_4
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234 (FA13A00_1.Floor3);
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235
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236 use Call_Elevator_Pkg;
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237
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238 Call_Button_Light : Light;
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239
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240 begin
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241
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242 Call_Button_Light := Call_Elevator (Up);
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243
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244 if not FA13A00_1.TC_Operation or Call_Button_Light /= Up then
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245 Report.Failed ("Incorrect elevator operation going to floor 3");
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246 end if;
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247
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248 end Going_To_Floor3;
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249
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250 -- Going from floor three to floor two.
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251
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252 Going_To_Floor2:
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253 declare
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254 -- Declare instance of the child generic elevator package for floor two.
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255
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256 package Call_Elevator_Pkg is new FA13A00_1.CA13A02_4
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257 (FA13A00_1.Floor2);
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258
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259 use Call_Elevator_Pkg;
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260
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261 Call_Button_Light : Light;
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262
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263 begin
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264
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265 Call_Button_Light := Call_Elevator (Up);
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266
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267 if not FA13A00_1.TC_Operation or Call_Button_Light /= Up then
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268 Report.Failed ("Incorrect elevator operation going to floor 2");
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269 end if;
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270
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271 end Going_To_Floor2;
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272
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273 -- Going to floor one.
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274
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275 Going_To_Floor1:
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276 declare
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277 -- Declare instance of the child generic elevator package for floor one.
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278
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279 package Call_Elevator_Pkg is new FA13A00_1.CA13A02_4
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280 (FA13A00_1.Floor1);
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281
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282 use Call_Elevator_Pkg;
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283
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284 Call_Button_Light : Light;
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285
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286 begin
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287 -- Calling elevator from floor one.
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288
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289 FA13A00_1.Current_Floor := FA13A00_1.Floor1;
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290
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291 Call_Button_Light := Call_Elevator (Down);
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292
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293 if not FA13A00_1.TC_Operation or Call_Button_Light /= Down then
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294 Report.Failed ("Incorrect elevator operation going to floor 1");
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295 end if;
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296
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297 end Going_To_Floor1;
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298
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299 Report.Result;
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300
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301 end CA13A02;
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