author | Claus Gittinger <cg@exept.de> |
Thu, 02 Jan 1997 18:47:18 +0100 | |
changeset 2025 | 9ab95f23af33 |
parent 2024 | 71a088db4583 |
child 2030 | 94800ed9cdc5 |
permissions | -rw-r--r-- |
1827 | 1 |
" |
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COPYRIGHT (c) 1996 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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||
1943
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Object subclass:#Namespace |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Kernel-Classes' |
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! |
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!Namespace class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1996 by Claus Gittinger |
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All Rights Reserved |
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||
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
|
30 |
inclusion of the above copyright notice. This software may not |
|
31 |
be provided or otherwise made available to, or used by, any |
|
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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||
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! |
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documentation |
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" |
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A Namespace is actually a dummy class, providing a home |
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for its private classes. |
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Thus, internally, the same mechanism is used for classes in |
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a namespace and private classes. |
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This has two advantages: |
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- we only need one mechanism for both namespaces |
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and private classes |
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- there are no possible conflicts between a class |
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and a namespace named alike. |
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[author:] |
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Claus Gittinger |
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[see also:] |
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Behavior ClassDescription Class Metaclass |
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PrivateMetaclass |
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" |
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! ! |
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!Namespace class methodsFor:'instance creation'! |
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fullName:aFullNameSpacePathName |
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"given a possibly nested name of a namespace, create all required |
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66 |
intermediate spaces (if not already existing) and return the |
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bottom-level space." |
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|
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"/ break it up, check for all intermediate spaces to exist |
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"/ create them as required. |
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|
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|list idx0 idx superSpace done thisNamespace| |
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list := OrderedCollection new. |
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idx0 := 1. |
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done := false. |
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[done] whileFalse:[ |
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idx := aFullNameSpacePathName indexOf:$: startingAt:idx0. |
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(idx ~~ 0) ifTrue:[ |
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(idx < aFullNameSpacePathName size and:[(aFullNameSpacePathName at:(idx+1)) == $:]) ifTrue:[ |
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81 |
superSpace := aFullNameSpacePathName copyFrom:idx0 to:(idx-1). |
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82 |
list add:superSpace. |
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idx0 := idx +2. |
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84 |
] ifFalse:[ |
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85 |
done := true |
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moved namespace creation completely to Namespace class.
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86 |
] |
5f60d3e5ba6e
moved namespace creation completely to Namespace class.
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parents:
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87 |
] ifFalse:[ |
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done := true. |
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parents:
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89 |
] |
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parents:
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90 |
]. |
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parents:
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91 |
list add:(aFullNameSpacePathName copyFrom:idx0). |
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92 |
|
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"/ now, look and create 'em |
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94 |
|
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95 |
thisNamespace := nil. |
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96 |
list do:[:aName | |
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97 |
|key x| |
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98 |
|
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99 |
key := aName asSymbol. |
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100 |
|
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thisNamespace isNil ifTrue:[ |
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102 |
(Smalltalk includesKey:key) ifTrue:[ |
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103 |
thisNamespace := Smalltalk at:key. |
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104 |
(thisNamespace notNil |
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105 |
and:[thisNamespace isBehavior not]) ifTrue:[ |
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106 |
^ self error:'name conflict: namespace ' , aName , ' vs. global'. |
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107 |
] |
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108 |
]. |
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109 |
thisNamespace isNil ifTrue:[ |
5f60d3e5ba6e
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parents:
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|
110 |
thisNamespace := self name:key |
5f60d3e5ba6e
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111 |
] |
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parents:
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|
112 |
] ifFalse:[ |
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113 |
x := thisNamespace privateClassesAt:key. |
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114 |
x notNil ifTrue:[ |
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115 |
thisNamespace := x |
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116 |
] ifFalse:[ |
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117 |
thisNamespace := |
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118 |
self subclass:key |
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119 |
instanceVariableNames:'' |
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120 |
classVariableNames:'' |
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121 |
poolDictionaries:'' |
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122 |
privateIn:thisNamespace |
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123 |
] |
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124 |
] |
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125 |
]. |
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126 |
|
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127 |
^ thisNamespace |
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128 |
|
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129 |
"Created: 8.11.1996 / 13:41:59 / cg" |
2007
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130 |
"Modified: 20.12.1996 / 15:17:07 / cg" |
1931
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131 |
! |
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parents:
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132 |
|
2007
57434c08d720
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parents:
1943
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133 |
name:aStringOrSymbol |
57434c08d720
namespace itself is not a namespace
Claus Gittinger <cg@exept.de>
parents:
1943
diff
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|
134 |
"create a new nameSpace, named aStringOrSymbol" |
1908 | 135 |
|
2024
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
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diff
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136 |
|newNamespace existing ok| |
1828 | 137 |
|
2024
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
2015
diff
changeset
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138 |
ok := aStringOrSymbol first isLetter. |
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
2015
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|
139 |
ok ifTrue:[ |
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
2015
diff
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|
140 |
2 to:aStringOrSymbol size do:[:idx | |ch| |
71a088db4583
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parents:
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diff
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|
141 |
ch := aStringOrSymbol at:idx. |
71a088db4583
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parents:
2015
diff
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|
142 |
ok ifTrue:[ |
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
2015
diff
changeset
|
143 |
ok := ch isLetterOrDigit or:[ch == $_]. |
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
2015
diff
changeset
|
144 |
] |
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validate nameSpaces name for being a valid identifier.
Claus Gittinger <cg@exept.de>
parents:
2015
diff
changeset
|
145 |
] |
71a088db4583
validate nameSpaces name for being a valid identifier.
Claus Gittinger <cg@exept.de>
parents:
2015
diff
changeset
|
146 |
]. |
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
2015
diff
changeset
|
147 |
|
71a088db4583
validate nameSpaces name for being a valid identifier.
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parents:
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diff
changeset
|
148 |
ok ifFalse:[ |
2025 | 149 |
self error:'invalid namespace name:''' , aStringOrSymbol printString , ''' (must be a valid identifier)'. |
1931
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150 |
^ nil. |
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151 |
]. |
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parents:
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152 |
|
2015 | 153 |
(existing := Smalltalk at:aStringOrSymbol asSymbol) notNil ifTrue:[ |
154 |
^ existing |
|
155 |
]. |
|
156 |
||
2007
57434c08d720
namespace itself is not a namespace
Claus Gittinger <cg@exept.de>
parents:
1943
diff
changeset
|
157 |
newNamespace := self subclass:aStringOrSymbol asSymbol |
1931
5f60d3e5ba6e
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parents:
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diff
changeset
|
158 |
instanceVariableNames:'' |
5f60d3e5ba6e
moved namespace creation completely to Namespace class.
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parents:
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diff
changeset
|
159 |
classVariableNames:'' |
5f60d3e5ba6e
moved namespace creation completely to Namespace class.
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parents:
1908
diff
changeset
|
160 |
poolDictionaries:'' |
5f60d3e5ba6e
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parents:
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diff
changeset
|
161 |
category:'uncategorized namespace'. |
1908 | 162 |
|
1828 | 163 |
^ newNamespace |
1901 | 164 |
|
165 |
" |
|
166 |
Namespace name:'foo' |
|
167 |
(Namespace name:'foo') category:'my name space' |
|
2007
57434c08d720
namespace itself is not a namespace
Claus Gittinger <cg@exept.de>
parents:
1943
diff
changeset
|
168 |
foo at:#bar put:(Metaclass new new) |
1901 | 169 |
" |
1931
5f60d3e5ba6e
moved namespace creation completely to Namespace class.
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parents:
1908
diff
changeset
|
170 |
|
2024
71a088db4583
validate nameSpaces name for being a valid identifier.
Claus Gittinger <cg@exept.de>
parents:
2015
diff
changeset
|
171 |
"Modified: 2.1.1997 / 18:41:22 / cg" |
1828 | 172 |
! |
173 |
||
174 |
new |
|
1943
0ec17e4627ae
better displayString & commentary
Claus Gittinger <cg@exept.de>
parents:
1934
diff
changeset
|
175 |
"catch new - namespaces are not to be created by the user" |
0ec17e4627ae
better displayString & commentary
Claus Gittinger <cg@exept.de>
parents:
1934
diff
changeset
|
176 |
|
1828 | 177 |
self error:'namespaces are not to be created with new' |
1943
0ec17e4627ae
better displayString & commentary
Claus Gittinger <cg@exept.de>
parents:
1934
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178 |
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"Modified: 8.11.1996 / 21:38:00 / cg" |
1828 | 180 |
! ! |
181 |
||
1908 | 182 |
!Namespace class methodsFor:'accessing'! |
1827 | 183 |
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184 |
allClasses |
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185 |
|classes| |
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186 |
|
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classes := IdentitySet new. |
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self allBehaviorsDo:[:aClass | classes add:aClass]. |
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189 |
^ classes |
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190 |
|
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191 |
"Modified: 20.12.1996 / 15:34:50 / cg" |
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192 |
! |
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193 |
|
1827 | 194 |
at:classNameSymbol |
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195 |
"return a class from the namespace defined by the receiver" |
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196 |
|
1828 | 197 |
^ self privateClassesAt:classNameSymbol |
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198 |
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199 |
"Modified: 8.11.1996 / 21:39:41 / cg" |
1827 | 200 |
! |
201 |
||
202 |
at:classNameSymbol ifAbsent:exceptionBlock |
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203 |
"return a class or an alternative |
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204 |
from the namespace defined by the receiver" |
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205 |
|
1827 | 206 |
|cls| |
207 |
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1828 | 208 |
cls := self privateClassesAt:classNameSymbol. |
1827 | 209 |
cls isNil ifTrue:[ |
210 |
^ exceptionBlock value |
|
211 |
]. |
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212 |
^ cls |
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213 |
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"Modified: 8.11.1996 / 21:40:01 / cg" |
1827 | 215 |
! |
216 |
||
217 |
at:classNameSymbol put:aClass |
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218 |
"add a class to the namespace defined by the receiver" |
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219 |
|
1828 | 220 |
^ self privateClassesAt:classNameSymbol put:aClass |
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221 |
|
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222 |
"Modified: 8.11.1996 / 21:40:12 / cg" |
1827 | 223 |
! ! |
224 |
||
1908 | 225 |
!Namespace class methodsFor:'enumerating'! |
1816 | 226 |
|
227 |
allBehaviorsDo:aBlock |
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228 |
"enumerate all classes in this namespace" |
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229 |
|
1828 | 230 |
self privateClassesDo:aBlock |
1816 | 231 |
|
232 |
"Created: 26.10.1996 / 12:29:01 / cg" |
|
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233 |
"Modified: 8.11.1996 / 21:39:20 / cg" |
1816 | 234 |
! ! |
235 |
||
1908 | 236 |
!Namespace class methodsFor:'fileOut'! |
1828 | 237 |
|
238 |
basicFileOutDefinitionOn:aStream |
|
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239 |
"redefined to generate another definition message" |
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240 |
|
1934 | 241 |
self == Namespace ifTrue:[ |
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242 |
super basicFileOutDefinitionOn:aStream |
1934 | 243 |
] ifFalse:[ |
244 |
aStream nextPutAll:('Namespace name:' , self name storeString) |
|
245 |
] |
|
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246 |
|
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247 |
"Modified: 8.11.1996 / 21:39:03 / cg" |
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248 |
! ! |
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249 |
|
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250 |
!Namespace class methodsFor:'printing & storing'! |
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251 |
|
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252 |
displayString |
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253 |
"return a printed represenation - here, a reminder is appended, |
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254 |
that this is not a regular class" |
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255 |
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256 |
self == Namespace ifTrue:[ |
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257 |
^ super displayString |
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258 |
]. |
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259 |
^ self name , ' (* namespace *)' |
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260 |
|
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261 |
"Created: 8.11.1996 / 21:37:24 / cg" |
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262 |
"Modified: 20.12.1996 / 15:11:31 / cg" |
1828 | 263 |
! ! |
264 |
||
1908 | 265 |
!Namespace class methodsFor:'queries'! |
1816 | 266 |
|
267 |
isNamespace |
|
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268 |
"return true - I am a namespace" |
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269 |
|
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270 |
self == Namespace ifTrue:[^ false]. |
1816 | 271 |
^ true |
272 |
||
273 |
"Created: 26.10.1996 / 11:13:36 / cg" |
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274 |
"Modified: 20.12.1996 / 15:11:45 / cg" |
1816 | 275 |
! ! |
276 |
||
277 |
!Namespace class methodsFor:'documentation'! |
|
278 |
||
279 |
version |
|
2025 | 280 |
^ '$Header: /cvs/stx/stx/libbasic/NameSpace.st,v 1.14 1997-01-02 17:47:18 cg Exp $' |
1816 | 281 |
! ! |