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AS3: Show try graph heads in Graphviz distinguished

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This commit is contained in:
Jindra Petřík
2021-01-23 19:45:15 +01:00
parent 550307e3fe
commit adabbfab35
3 changed files with 33 additions and 2 deletions
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30
libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/exporters/script/PcodeGraphVizExporter.java
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@@ -31,6 +31,7 @@ import com.jpexs.decompiler.flash.exporters.script.graphviz.TokenType;
import com.jpexs.decompiler.flash.helpers.GraphTextWriter;
import com.jpexs.decompiler.flash.tags.base.ASMSource;
import com.jpexs.decompiler.graph.Graph;
import com.jpexs.decompiler.graph.GraphException;
import com.jpexs.decompiler.graph.GraphPart;
import com.jpexs.decompiler.graph.GraphSource;
import com.jpexs.decompiler.graph.ScopeStack;
@@ -98,16 +99,41 @@ public class PcodeGraphVizExporter {
for (GraphPart h : heads) {
populateParts(h, allBlocks);
}
List<GraphException> exceptions = graph.getExceptions();
Set<Long> knownAddresses = graphSource.getImportantAddresses();
int h = 0;
List<Integer> exPassedStarts = new ArrayList<>();
List<Integer> exPassedEnds = new ArrayList<>();
for (GraphPart head : heads) {
String headName = "start";
if (heads.size() > 1) {
if (heads.size() > 1 && head.start != 0) {
h++;
headName = "start" + h;
}
writer.append(headName + " [shape=\"circle\"]\r\n");
String headLabel = "";
List<String> headLabels = new ArrayList<>();
for (int e = 0; e < exceptions.size(); e++) {
GraphException ex = exceptions.get(e);
if (head.start == ex.start && !exPassedStarts.contains(e)) {
headLabels.add("try " + e + " begin");
exPassedStarts.add(e);
break;
}
if (head.start == ex.end && !exPassedEnds.contains(e)) {
headLabels.add("try " + e + " end");
exPassedEnds.add(e);
break;
}
if (head.start == ex.target) {
headLabels.add("try " + e + " target");
}
}
if (!headLabels.isEmpty()) {
headLabel = String.join("\\n", headLabels);
}
writer.append(headName + " [shape=\"circle\"" + (headLabel.isEmpty() ? "" : " label=\"" + headLabel + "\"") + "]\r\n");
writer.append(headName + ":s -> " + getBlockName(graphSource, head) + ":n;\r\n");
}
for (GraphPart part : allBlocks) {

4
libsrc/ffdec_lib/src/com/jpexs/decompiler/graph/Graph.java
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@@ -124,6 +124,10 @@ public class Graph {
}
}
public List<GraphException> getExceptions() {
return exceptions;
}
protected static void populateParts(GraphPart part, Set<GraphPart> allParts) {
if (allParts.contains(part)) {
return;