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Make graph.toString return dot representation of graph

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This commit is contained in:
Alexey Andreev 2018-02-04 22:30:07 +03:00
parent 6d68010416
commit 4f9110f7b1
1 changed files with 24 additions and 2 deletions
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26
core/src/main/java/org/teavm/common/GraphBuilder.java
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@ -99,11 +99,11 @@ public class GraphBuilder {
return builtGraph;
}
private static class GraphImpl implements Graph {
private static final class GraphImpl implements Graph {
private final int[][] incomingEdgeList;
private final int[][] outgoingEdgeList;
public GraphImpl(int[][] incomingEdgeList, int[][] outgoingEdgeList) {
GraphImpl(int[][] incomingEdgeList, int[][] outgoingEdgeList) {
this.incomingEdgeList = incomingEdgeList;
this.outgoingEdgeList = outgoingEdgeList;
}
@ -148,5 +148,27 @@ public class GraphBuilder {
public int outgoingEdgesCount(int node) {
return outgoingEdgeList[node].length;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("digraph {\n");
for (int i = 0; i < size(); ++i) {
if (outgoingEdgesCount(i) > 0) {
sb.append(" ").append(i).append(" -> { ");
int[] outgoingEdges = outgoingEdges(i);
sb.append(outgoingEdges[0]);
for (int j = 1; j < outgoingEdges.length; ++j) {
sb.append(", ").append(outgoingEdges[j]);
}
sb.append(" }\n");
}
}
sb.append("}");
return sb.toString();
}
}
}