InterpretedFunction class - runtime library

Constructors

InterpretedFunction.constructor(SConstructorDeclaration declaration, Environment closure, RuntimeType? owner)
InterpretedFunction.declaration(SFunctionDeclaration declaration, Environment closure, RuntimeType? declaredReturnType, bool isNullable, {AppliedRuntimeType? declaredReturnTypeApplied, bool lenientBounds = false})
InterpretedFunction.expression(SFunctionExpression expression, Environment closure)
InterpretedFunction.method(SMethodDeclaration declaration, Environment closure, RuntimeType? owner)

Properties

arity → int: no setteroverride
callableRuntimeType → RuntimeType: DFUB5: the structural function type of this callable, used by is/as and return-type checks against T Function(...) annotations.
no setter
canCallWithoutArgs → bool: GEN-095 (D8f): true when the function can be called with no arguments, i.e. it has no required positional parameters and no required-named parameters. Used by the binary-expression visitor to decide whether to auto-invoke a function value (legitimate for zero-arg thunks, wrong for any callback that takes arguments — see semantics_gesture_delegate_test where onHorizontalDrag == null was crashing because the comparison auto-invoked the (DragUpdateDetails d) {} callback with []).
no setter
closure → Environment: no setter
declaredReturnType → RuntimeType?: final
declaredReturnTypeApplied → AppliedRuntimeType?: DFUB6: the declared return type with its applied type arguments preserved (e.g. Box<int> / List<String>), when the return type is a generic SNamedType. Null for raw / unresolvable / non-generic return types. SAstNode has no parent references, so the applied return type must be captured here at declaration time — the return statement cannot walk up the AST to re-read the annotation. Used by visitReturnStatement._checkAppliedGenericReturn.
final
hashCode → int: The hash code for this object.
no setterinherited
isAbstract → bool: final
isAsync → bool: final
isAsyncGenerator → bool: final
isFactory → bool: final
isGenerator → bool: final
isGetter → bool: final
isInitializer → bool: final
isNullable → bool: final
isSetter → bool: final
maxPositionalArity → int: The number of positional parameters this function can accept — required and optional together.
no setter
namedParameterNames → List<String>: Get all named parameter names.
no setter
ownerType → RuntimeType?: final
positionalParameterNames → List<String>: Get all positional parameter names (required and optional).
no setter
redirectedFactoryTarget → SConstructorName?: final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
typeParameterBounds → Map<String, RuntimeType?>: final
typeParameterNames → List<String>: final

Methods

bind(RuntimeValue instance) → Callable: Binds 'this' to a specific instance, returning a new callable where the closure has 'this' defined.
call(InterpreterVisitor visitor, List<Object?> positionalArguments, [Map<String, Object?> namedArguments = const {}, List<RuntimeType>? typeArguments]) → Object?: override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
override

Operators

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

Static Methods

checkBindingType(Environment env, STypeAnnotation? typeNode, Object? value, {String? describedAs}) → Object?: The value to bind to a written type typeNode, after checking it and applying the one conversion Dart applies here.
checkForEachBinding(Environment env, SAstNode? loopVariable, Object? element) → Object?: The value to bind to a for-each loop variable for one iteration, checked against the variable's written type.
clearParentMap() → void: Clear the parent map. Should be called at the start of each top-level execution to prevent unbounded growth across multiple executions.
resolveBinding(Environment env, STypeAnnotation? typeNode, {String? describedAs}) → ResolvedBinding?: The value-independent half of a binding check, resolved once.
resolveForEachBinding(Environment env, SAstNode? loopVariable) → ResolvedBinding?: resolveBinding for a for-each loop variable: the resolved check, or null when the loop needs none.