/**

* Provides modeling for the `YAML` and `Psych` libraries.

*/

private import codeql.ruby.dataflow.FlowSteps

private import codeql.ruby.DataFlow

private import codeql.ruby.ApiGraphs

/**

* Gets A Node ends with YAML parse, parse_stream, parse_file methods

*/

API::Node yamlParseNode(API::Node yamlParseInstance) {

result = yamlParseInstance

or

result = yamlParseNode(yamlParseInstance).getReturn()

or

result = yamlParseNode(yamlParseInstance).getBlock()

or

result = yamlParseNode(yamlParseInstance).getAnElement()

or

result = yamlParseNode(yamlParseInstance).getParameter(_)

or

result = yamlParseNode(yamlParseInstance).getMethod(_)

or

result = yamlParseNode(yamlParseInstance).getMember(_)

or

result = yamlParseNode(yamlParseInstance).getArgument(_)

}

/**

* Gets A YAML module instance

*/

API::Node yamlLibrary() { result = API::getTopLevelMember(["YAML", "Psych"]) }