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Bug 455828 - General cleanup in ControlFlowGraphBuilder

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Change-Id: I46cfe23fc10bed235d091afaec8eec29dd7d62ac
Signed-off-by: Nathan Ridge <zeratul976@hotmail.com>
This commit is contained in:
Nathan Ridge 2015-02-17 01:39:56 -05:00 • committed by Gerrit Code Review @ Eclipse.org
parent cd65a29016
commit d0ef9d1d82
1 changed files with 11 additions and 18 deletions
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29
codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/internal/model/cfg/ControlFlowGraphBuilder.java
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@ -146,14 +146,11 @@ public class ControlFlowGraphBuilder {
return node;
}
private IBasicBlock createSubGraph(IBasicBlock prev, IASTNode body) {
private IBasicBlock createSubGraph(IBasicBlock prev, IASTStatement body) {
if (body instanceof IASTCompoundStatement) {
IASTCompoundStatement comp = (IASTCompoundStatement) body;
IASTNode[] children = comp.getChildren();
for (int i = 0; i < children.length; i++) {
IASTNode node = children[i];
IBasicBlock last = createSubGraph(prev, node);
prev = last;
for (IASTStatement statement : comp.getStatements()) {
prev = createSubGraph(prev, statement);
}
} else if (body instanceof IASTExpressionStatement || body instanceof IASTDeclarationStatement || body instanceof IASTNullStatement) {
if (isThrowStatement(body) || isExitStatement(body)) {
@ -327,20 +324,17 @@ public class ControlFlowGraphBuilder {
return conn;
}
private void createSwitchBody(DecisionNode switchNode, IConnectorNode mergeNode, IASTStatement body) {
private void createSwitchBody(IDecisionNode switchNode, IConnectorNode mergeNode, IASTStatement body) {
if (!(body instanceof IASTCompoundStatement))
return; // bad
IASTCompoundStatement comp = (IASTCompoundStatement) body;
IASTNode[] children = comp.getChildren();
IBasicBlock prev = switchNode;
for (int i = 0; i < children.length; i++) {
IASTNode elem = children[i];
if (elem instanceof IASTCaseStatement || elem instanceof IASTDefaultStatement) {
for (IASTStatement statement : comp.getStatements()) {
if (statement instanceof IASTCaseStatement || statement instanceof IASTDefaultStatement) {
IBranchNode lbl = null;
if (elem instanceof IASTCaseStatement) {
IASTCaseStatement caseSt = (IASTCaseStatement) elem;
lbl = factory.createBranchNode(caseSt);
} else if (elem instanceof IASTDefaultStatement) {
if (statement instanceof IASTCaseStatement) {
lbl = factory.createBranchNode(statement);
} else if (statement instanceof IASTDefaultStatement) {
lbl = factory.createBranchNode(IBranchNode.DEFAULT);
}
if (!(prev instanceof IExitNode) && prev != switchNode) {
@ -354,12 +348,11 @@ public class ControlFlowGraphBuilder {
addOutgoing(switchNode, lbl);
continue;
}
if (elem instanceof IASTBreakStatement) {
if (statement instanceof IASTBreakStatement) {
prev = addJump(prev, mergeNode);
continue;
}
IBasicBlock last = createSubGraph(prev, elem);
prev = last;
prev = createSubGraph(prev, statement);
}
addJump(prev, mergeNode);
}