Module expr 

Everything needed to handle expression trees.

The important types are Expr, which represents an expression tree, and SymbolTable, which is the special collection type used for evaluation.

Structs

Expr

An expression.

SymbolTable

An appendonly map-like collection of defined symbols.

Enums

ExprData

Holds the information needed to create an instance of Expr.

OP

The supported operations in an expr.

Value

Represents a value (leaf node) in an Expr tree.

Constants

FLOAT_PRECISION

Number of precision bits to use for floating point values.

INT_PRECISION

Maximum number of significant bits to use for integer values.