blob: ee67f517bf00c47d7e4cc5e4d48bf256aa4bea68 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jface.text.reconciler;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.text.Assert;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.reconciler.DirtyRegion;
/**
* Abstract implementation of a reconcile step.
*
* @since 3.0
*/
public abstract class AbstractReconcileStep implements IReconcileStep {
private IReconcileStep fNextStep;
private IReconcileStep fPreviousStep;
private IProgressMonitor fProgressMonitor;
protected IReconcilableModel fInputModel;
/**
* Creates an intermediate reconcile step which adds
* the given step to the pipe.
*
* @param step the reconcile step
*/
public AbstractReconcileStep(IReconcileStep step) {
Assert.isNotNull(step);
fNextStep= step;
fNextStep.setPreviousStep(this);
}
/**
* Creates the last reconcile step of the pipe.
*/
public AbstractReconcileStep() {
}
public boolean isLastStep() {
return fNextStep == null;
}
public boolean isFirstStep() {
return fPreviousStep == null;
}
/*
* @see org.eclipse.text.reconcilerpipe.IReconcilerResultCollector#setProgressMonitor(org.eclipse.core.runtime.IProgressMonitor)
*/
public void setProgressMonitor(IProgressMonitor monitor) {
fProgressMonitor= monitor;
if (!isLastStep())
fNextStep.setProgressMonitor(monitor);
}
/*
* @see org.eclipse.jface.text.reconciler.IReconcileStep#getProgressMonitor()
*/
public IProgressMonitor getProgressMonitor() {
return fProgressMonitor;
}
/*
* @see IReconcileStep#reconcile(IRegion)
*/
public final IReconcileResult[] reconcile(IRegion partition) {
IReconcileResult[] result= reconcileModel(null, partition);
if (!isLastStep()) {
fNextStep.setInputModel(getModel());
IReconcileResult[] nextResult= fNextStep.reconcile(partition);
return merge(result, convertToInputModel(nextResult));
}
return result;
}
/*
* @see IReconcileStep#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion, org.eclipse.jface.text.IRegion)
*/
public final IReconcileResult[] reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
IReconcileResult[] result= reconcileModel(dirtyRegion, subRegion);
if (!isLastStep()) {
fNextStep.setInputModel(getModel());
IReconcileResult[] nextResult= fNextStep.reconcile(dirtyRegion, subRegion);
return merge(result, convertToInputModel(nextResult));
}
return result;
}
/**
* Reconciles the model of this reconcile step. The
* result is based on the input model.
*
* @param dirtyRegion the document region which has been changed
* @param subRegion the sub region in the dirty region which should be reconciled
* @return an array with reconcile results
*/
abstract protected IReconcileResult[] reconcileModel(DirtyRegion dirtyRegion, IRegion subRegion);
/**
* Adapts the given an array with reconcile results to
* this step's input model and returns it.
*
* @param inputResults an array with reconcile results
* @return an array with the reconcile results adapted to the input model
*/
protected IReconcileResult[] convertToInputModel(IReconcileResult[] inputResults) {
return inputResults;
}
/**
* Merges the two reconcile result arrays.
*
* @param results1 an array with reconcile results
* @param results2 an array with reconcile results
* @return an array with the merged reconcile results
*/
private IReconcileResult[] merge(IReconcileResult[] results1, IReconcileResult[] results2) {
if (results1 == null)
return results2;
if (results2 == null)
return results1;
// XXX: not yet performance optimized
Collection collection= new ArrayList(Arrays.asList(results1));
collection.addAll(Arrays.asList(results2));
return (IReconcileResult[])collection.toArray(new IReconcileResult[collection.size()]);
}
/*
* @see IProgressMonitor#isCanceled()
*/
protected final boolean isCanceled() {
return fProgressMonitor != null && fProgressMonitor.isCanceled();
}
/*
* @see IReconcileStep#setPreviousStep(IReconcileStep)
*/
public void setPreviousStep(IReconcileStep step) {
Assert.isNotNull(step);
Assert.isTrue(fPreviousStep == null);
fPreviousStep= step;
}
/*
* @see IReconcileStep#setInputModel(Object)
*/
public void setInputModel(IReconcilableModel inputModel) {
fInputModel= inputModel;
if (!isLastStep())
fNextStep.setInputModel(getModel());
}
/**
* Returns the reconcilable input model.
*
* @return the reconcilable input model.
*/
public IReconcilableModel getInputModel() {
return fInputModel;
}
/**
* Returns the reconcilable model.
*
* @return the reconcilable model
*/
abstract public IReconcilableModel getModel();
}
|
