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CFG: link heredoc start to its body

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This commit is contained in:
Arthur Baars
2020-12-03 13:30:43 +01:00
parent 49d11b1e09
commit 6c579ff608
1 changed files with 21 additions and 0 deletions
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21
ql/src/codeql_ruby/controlflow/internal/ControlFlowGraphImpl.qll
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@@ -431,6 +431,27 @@ private module Trees {
}
}
private class HeredocBeginningTree extends StandardPreOrderTree, HeredocBeginning {
final override AstNode getChildNode(int i) {
i = 0 and
result =
min(string name, HeredocBody doc, HeredocEnd end |
name = this.getValue().regexpCapture("^<<[-~]?[`']?(.*)[`']?$", 1) and
end = unique(HeredocEnd x | x = doc.getChild(_)) and
end.getValue() = name and
doc.getLocation().getFile() = this.getLocation().getFile() and
(
doc.getLocation().getStartLine() > this.getLocation().getStartLine()
or
doc.getLocation().getStartLine() = this.getLocation().getStartLine() and
doc.getLocation().getStartColumn() > this.getLocation().getStartColumn()
)
|
doc order by doc.getLocation().getStartLine(), doc.getLocation().getStartColumn()
)
}
}
private class IdentifierTree extends LeafTree, Identifier { }
private class IfElsifTree extends PreOrderTree, IfElsifAstNode {