VMContext class

A runtime context of the VM.

Any code executed inside the VM has a context, that holds blocks variables, functions and classes instances.

Implementers
Available Extensions

Constructors

VMContext(ASTBlock block, {VMContext? parent, VMTypeResolver? typeResolver})

Properties

block → ASTBlock
The runtime block of this context.
final
externalFunctionMapper ↔ ApolloExternalFunctionMapper?
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
parent → VMContext?
The parent context.
final
root → VMContext?
The root context.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
typeResolver → VMTypeResolver
The type resolver. If not defined for this instance will get from parent.
no setter

Methods

declareVariable(ASTTypedVariable variable) → bool
Declares a variable of type and name without a initial value.
declareVariableWithValue(ASTType type, String name, ASTValue? value) → bool
Declares a variable of type and name with an optional value in this context.
getClassInstance() → ASTValue?
The visible object class instance from this context.
getField(String name) → ASTVariable?
Returns an ASTVariable of field name.
getFunction(String name, ASTFunctionSignature parametersSignature) → ASTFunctionDeclaration?
Returns a function of name and parametersSignature
getMappedExternalFunction<R>(String fName, [ASTFunctionSignature? parametersSignature]) → ASTExternalFunction<R>?
Returns an ASTExternalFunction of fName and parametersSignature.
getVariable(String name, bool allowClassFields) → FutureOr<ASTVariable?>
Returns an ASTVariable of name in this context.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
setVariable(String name, ASTValue value, bool allowField) → bool
Sets an already declared variable of name with value in this context.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

getCurrent() → VMContext?
Static access for the current VMContext.
setCurrent(VMContext? context) → VMContext?
Static setter for the current VMContext.