getLocal method

@override Expression? getLocal(String name)

Returns a variable that references the name local.

Implementation

@override
o.Expression? getLocal(String name) {
  if (name == EventHandlerVars.event.name) {
    return EventHandlerVars.event;
  }
  if (!_state.localDeclarations.containsKey(name)) {
    // Check if a local for `name` exists.
    var currView = _state.view!;
    var result = _state.locals[name];
    while (result == null && currView.declarationElement.view != null) {
      currView = currView.declarationElement.view!;
      result = currView.nameResolver._state.locals[name];
    }
    if (result == null) return null; // No local for `name`.
    var expression = getPropertyInView(result, _state.view!, currView);
    final type = currView.nameResolver._state.localTypes[name];
    if (type != null && type != o.dynamicType) {
      expression = unsafeCast(expression, type);
    }
    final modifiers = [o.StmtModifier.finalStmt];
    // Cache in shared view state for reuse if requested in other scopes.
    // Since locals are view wide, the variable name is guaranteed to be
    // unique in any generated method.
    _state.localDeclarations[name] = o.DeclareVarStmt(
      'local_$name',
      expression,
      null,
      modifiers,
    );
  }
  _localsInScope.add(name); // Cache local in this method scope.
  return o.ReadVarExpr(_state.localDeclarations[name]!.name);
}