Implement negation for non-existing nodes#200

Merged

bors[bot] merged 29 commits intomainfrom feature/negation-without-existence

Sep 16, 2021

+1,009-531

Commits on Sep 13, 2021

Add syntax for optional nodes (marked with ? postfix) and improve error messages for non-bound variables
thomaskrause
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Use a struct to describe the vector of nodes
thomaskrause
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Re-organize the functions to create the execution plan to prepare adding non-existing nodes
thomaskrause
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Add empty implementation of the non existing unary operator.
thomaskrause
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Implement some of the NonExistingUnaryOperator functionality
thomaskrause
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Only support binary operators with a retrieve_matches() function
thomaskrause
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More consistent names for the node search related helper structs
thomaskrause
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Move NodeDescArg as private struct into nodesearch package
thomaskrause
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Remove now unused function
thomaskrause
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Refactor NodeSearch to make it easier to extract the filter functions without re-implementing the complex logic
thomaskrause
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Add an unary operator for negated operators refering to non-existing nodes
thomaskrause
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Exclude all optional nodes from the component calculation
thomaskrause
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Add the original operator to the non-existing unary operator.
thomaskrause
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Add a search test for negated dominance and non-existance
thomaskrause
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Explicitly mark this case as todo!() instead of failing silently
thomaskrause
committed

Commits on Sep 14, 2021