ContextModel class

The context model keeps track of all known variables and functions.

It is structured hierarchically to offer nested scopes.

Constructors

ContextModel.new()

Creates a new, empty root context model.

Properties

functions → Set<MathFunction>

Function set of this scope.

final

hashCode → int

The hash code for this object.

no setter, inherited

parentScope → ContextModel?

The parent scope.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

variables → Map<String, Expression>

Variable map of this scope (name -> expression).

final

Methods

bindFunction(MathFunction f) → void

Binds a function to this context.

bindVariable(Variable v, Expression e) → void

Binds a variable to an expression in this context.

bindVariableName(String vName, Expression e) → void

Binds a variable name to an expression in this context.

createChildScope() → ContextModel

Returns a new child scope of this scope.

getExpression(String varName) → Expression

Returns the bound expression for the given variable. Performs recursive lookup through parentScope.

getFunction(String name) → MathFunction

Returns the function for the given function name. Performs recursive lookup through parentScope.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

unbindVariableName(String vName) → void

Unbinds a variable name in this context

Operators

operator ==(Object other) → bool

The equality operator.

inherited