Module vval

This module provides the core data structures used by the parser, compiler and evaluator of WLambda.

Structs

• CompileError
• DropFun
  Handles calling of destructor functions.
• Env
  The runtime environment of the evaluator.
• FileRef
• LoopInfo
• Stdio
• SynPos
  Structure for holding information about origin of an AST node.
• SynPosInfo
• VValFun
  This structure is the runtime representation of a WLambda function value.

Enums

• CollectionAdd
  This type gives the end where to add the VVal::add function.
• FunType
• StackAction
  Encodes all kinds of jumps up the call stack, like break and next in Loops.
• Syntax
  Encodes the different types of AST nodes.
• UnwindAction
  Describes an action that needs to be done when returning from a function or somehow jumps unpredictably around the VM prog.
• VVal
  VVal aka. VariantValue is a data structure to represent all kinds of WLambda data structures.
• VValChr
  The internal distinction between a character and a byte. They share parts of the lexical represenation and also the semantic purspose is similar.
• VarPos
  Position of a variable represented in the CompileEnv.

Traits

• VValUserData
  You can implement your own VVal data type and provide it via global functions:

Functions

• format_escape_char
• format_vval_byt
• format_vval_str

Type Aliases

• ClosNodeRef
• EvalNode
• VValIter