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description CodeQL AST node reference for the Python language

CodeQL AST nodes for python language

Expected test results for local PrintAst.ql query

This repo contains a variant of the open-source PrintAst.ql query for python language, with modifications for local testing:

CodeQL's core AST classes for python language

Expression Types

  • Call - Function/method calls (e.g., func(args))
  • Attribute - Attribute access (e.g., obj.attr, module.function)
  • Subscript - Subscript operations (e.g., obj[key], list[0])
  • Name - Variable references and identifiers
  • StringLiteral - String literals (e.g., "hello", 'world')
  • Bytes - Byte string literals
  • List - List literals (e.g., [1, 2, 3])
  • Dict - Dictionary literals (e.g., {"key": "value"})
  • KeyValuePair - Key-value pairs in dictionaries
  • BinOp - Binary operations (e.g., +, -, *)
  • UnaryExpr - Unary expressions (e.g., not, -)

Statement Types

  • FunctionDef - Function definitions
  • FunctionExpr - Function expressions
  • Function - Function objects
  • ClassDef - Class definitions
  • ClassExpr - Class expressions
  • Class - Class objects
  • Import - Import statements (import module)
  • ImportFrom - From-import statements (from module import name)
  • ImportExpr - Import expressions
  • Assign - Assignment statements (e.g., x = y)
  • AssignStmt - Assignment statement nodes
  • If - Conditional statements
  • For - For loop statements
  • While - While loop statements
  • Return - Return statements
  • ExprStmt - Expression statements
  • Pass - Pass statements

Parameters and Arguments

  • Parameter - Function parameters
  • arguments - Function argument lists
  • parameters - Function parameter lists

Control Flow

  • StmtList - Statement lists (body, orelse)
  • body - Statement body containers
  • orelse - Else clause containers

YAML Support (for configuration files)

  • YamlScalar - YAML scalar values
  • YamlMapping - YAML mapping/dictionary structures
  • YamlSequence - YAML sequence/list structures
  • YamlAliasNode - YAML alias references

Expected test results for open-source PrintAst.ql query

The following links can be fetched to get the expected results for different unit tests of the open-source PrintAst.ql query for the python language: