Rust: Extend data flow library instantiation for global data flow #18056
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hvitved
requested changes
Nov 21, 2024
| /** | ||
| * The value of a parameter at function entry, viewed as a node in a data | ||
| * flow graph. | ||
| */ | ||
| final class ParameterNode extends AstCfgFlowNode, TParameterNode { | ||
| final class NormalParameterNode extends ParameterNode, TParameterNode { |
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Perhaps PositionalParameterNode instead?
| Node getPreUpdateNode() { none() } | ||
| Node getPreUpdateNode() { result = TExprNode(n) } | ||
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| final override CfgScope getCfgScope() { result = n.getAstNode().getEnclosingCfgScope() } |
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| final override CfgScope getCfgScope() { result = n.getAstNode().getEnclosingCfgScope() } | ||
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| final override Location getLocation() { result = n.getAstNode().getLocation() } |
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No need for the intermediate .getAstNode()
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| final override Location getLocation() { result = n.getAstNode().getLocation() } | ||
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| final override string toString() { result = n.getAstNode().toString() } |
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No need for the intermediate .getAstNode()
| @@ -185,7 +230,10 @@ module Node { | |||
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| /** A data flow node that represents a value returned by a callable. */ | |||
| final class ReturnNode extends ExprNode { | |||
| ReturnNode() { this.getCfgNode().getASuccessor() instanceof ExitCfgNode } | |||
| ReturnNode() { | |||
| this.getCfgNode().getASuccessor() instanceof ExitCfgNode or | |||
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Is this disjunct actually needed?
| predicate isParameterNode(ParameterNode p, DataFlowCallable c, ParameterPosition pos) { none() } | ||
| /** Holds if `p` is a parameter of `c` at the position `pos`. */ | ||
| predicate isParameterNode(ParameterNode p, DataFlowCallable c, ParameterPosition pos) { | ||
| p.getCfgNode().getAstNode() = pos.getParameterIn(c.asCfgScope().(Function).getParamList()) |
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Use Callable instead of Function to also include closures.
| cached | ||
| newtype TParameterPosition = | ||
| TPositionalParameterPosition(int i) { | ||
| exists(any(ParamList l).getParam(i)) or exists(any(ArgList l).getArg(i)) |
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Alternatively, i in [0 .. max([any(ParamList l).getNumberOfParams(), any(ArgList l).getNumberOfArgs()] - 1].
| testFailures | ||
| | main.rs:45:10:45:10 | a | Fixed missing result: hasValueFlow=14 | |
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The MISSING marked should be removed in the test.
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