diff options
Diffstat (limited to 'subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/rewriters/IVariableRenamer.java')
-rw-r--r-- | subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/rewriters/IVariableRenamer.java | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/rewriters/IVariableRenamer.java b/subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/rewriters/IVariableRenamer.java new file mode 100644 index 00000000..ce446e0d --- /dev/null +++ b/subprojects/viatra-runtime-matchers/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/rewriters/IVariableRenamer.java | |||
@@ -0,0 +1,59 @@ | |||
1 | /******************************************************************************* | ||
2 | * Copyright (c) 2010-2015, Zoltan Ujhelyi, Marton Bur, Istvan Rath and Daniel Varro | ||
3 | * This program and the accompanying materials are made available under the | ||
4 | * terms of the Eclipse Public License v. 2.0 which is available at | ||
5 | * http://www.eclipse.org/legal/epl-v20.html. | ||
6 | * | ||
7 | * SPDX-License-Identifier: EPL-2.0 | ||
8 | *******************************************************************************/ | ||
9 | package tools.refinery.viatra.runtime.matchers.psystem.rewriters; | ||
10 | |||
11 | import tools.refinery.viatra.runtime.matchers.psystem.PVariable; | ||
12 | import tools.refinery.viatra.runtime.matchers.psystem.queries.PQuery; | ||
13 | |||
14 | /** | ||
15 | * Helper interface to ease the naming of the new variables during flattening | ||
16 | * | ||
17 | * @author Marton Bur | ||
18 | * | ||
19 | */ | ||
20 | public interface IVariableRenamer { | ||
21 | /** | ||
22 | * Creates a variable name based on a given variable and a given query. It only creates a String, doesn't set | ||
23 | * anything. | ||
24 | * | ||
25 | * @param pVariable | ||
26 | * @param query | ||
27 | * @return the new variable name as a String | ||
28 | */ | ||
29 | String createVariableName(PVariable pVariable, PQuery query); | ||
30 | |||
31 | public class SameName implements IVariableRenamer { | ||
32 | @Override | ||
33 | public String createVariableName(PVariable pVariable, PQuery query) { | ||
34 | return pVariable.getName(); | ||
35 | } | ||
36 | } | ||
37 | |||
38 | public class HierarchicalName implements IVariableRenamer { | ||
39 | |||
40 | private int callCount; | ||
41 | |||
42 | public void setCallCount(int callCount) { | ||
43 | this.callCount = callCount; | ||
44 | } | ||
45 | |||
46 | @Override | ||
47 | public String createVariableName(PVariable pVariable, PQuery query) { | ||
48 | // make sure to keep the "_" prefix before anonymous variables | ||
49 | String newVarName = getShortName(query) + "<" + callCount + ">" + "_" + pVariable.getName(); | ||
50 | return pVariable.getName().startsWith("_") ? "_" + newVarName : newVarName ; | ||
51 | } | ||
52 | |||
53 | private String getShortName(PQuery query) { | ||
54 | String fullyQualifiedName = query.getFullyQualifiedName(); | ||
55 | int beginIndex = fullyQualifiedName.lastIndexOf('.') + 1; | ||
56 | return fullyQualifiedName.substring(beginIndex); | ||
57 | } | ||
58 | } | ||
59 | } \ No newline at end of file | ||