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codeql/ql/src/codeql_ruby/ast/Pattern.qll
2021-02-09 12:17:21 +01:00

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private import codeql_ruby.AST
private import codeql.Locations
private import internal.Pattern
private import internal.TreeSitter
private import internal.Variable
/** A pattern. */
class Pattern extends AstNode {
override Pattern::Range range;
Pattern() { range = this }
/** Gets a variable used in (or introduced by) this pattern. */
Variable getAVariable() { result = range.getAVariable() }
}
/** A simple variable pattern. */
class VariablePattern extends Pattern {
override VariablePattern::Range range;
/** Gets the variable used in (or introduced by) this pattern. */
Variable getVariable() { access(this, result) }
}
/**
* A tuple pattern.
*
* This includes both tuple patterns in parameters and assignments.
*/
class TuplePattern extends Pattern {
override TuplePattern::Range range;
/** Gets the `i`th pattern in this tuple pattern. */
final Pattern getElement(int i) { result = range.getElement(i) }
/** Gets a sub pattern in this tuple pattern. */
final Pattern getAnElement() { result = this.getElement(_) }
}