Ruby: Implement localMustFlowStep
#14303
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| node2.asExpr() = SsaImpl::getARead(def) | ||
| ) | ||
| or | ||
| node1.asExpr() = node2.asExpr().(CfgNodes::ExprNodes::AssignExprCfgNode).getRhs() |
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This looks good to me, I was just wondering if there was overlap between this line and def.(Ssa::WriteDefinition).assigns(node1.asExpr()) above. Both seem to be related to assignments. Similar question about SsaFlow::toParameterNodeImpl and the special handling for (ImplicitBlockArgumentNode).getParameterNode(_).
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This looks good to me, I was just wondering if there was overlap between this line and def.(Ssa::WriteDefinition).assigns(node1.asExpr()) above. Both seem to be related to assignments.
The first line is about flow from e to SSA def for x in x = e, and the second line is about flow from e to the whole assignment expression x = e.
Similar question about SsaFlow::toParameterNodeImpl and the special handling for (ImplicitBlockArgumentNode).getParameterNode(_).
This is because implicit block parameters and arguments are not covered by our SSA analysis, otherwise you are right it would be an instance of that.
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LGTM, just had a question.
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Now that we track types in data flow, implementing
localMustFlowStepmeans that we will also get type-based call-target pruning, as implemented in the shared library.