Incorrect AST generation with actions

[pluralia]

An AST, generated from the grammar bellow, doesn't contain an interface StaticAccessExpression. Also, interfaces StaticSymbolReference and StaticMemberAccess are generated incorrectly.

Model:
    elements+=Element*;

Element:
    StaticAccessExpression;

StaticAccessExpression:
    {StaticSymbolReference} ref=ID
    ({StaticMemberAccess.receiver=current} '.' member=ID)*;

StaticSymbolReference:
    {StaticSymbolReference} ref=ID;

StaticMemberAccess:
    {StaticMemberAccess} '.' member=ID;

terminal ID: /\$?[_a-zA-Z][\w_]*/;

Langium version: 0.2.1

Steps To Reproduce

1. Generate an AST with the grammar above
2. Check out the StaticAccessExpression, StaticSymbolReference and StaticMemberAccess interfaces in the AST

The current behavior

The generated AST doesn't contain the StaticAccessExpression interface. StaticSymbolReference and StaticMemberAccess interfaces don't extend StaticAccessExpression.

export interface StaticSymbolReference extends AstNode {
    member: string
    receiver: StaticAccessExpression
    ref: string
}

export interface StaticMemberAccess extends StaticSymbolReference {}

The expected behavior

A correctly generated AST:

export interface StaticAccessExpression extends Element {}

export interface StaticSymbolReference extends StaticAccessExpression {
    ref: string
}

export interface StaticMemberAccess extends StaticAccessExpression {
    member: string
    receiver: StaticAccessExpression
}

[pluralia]

@jbicker Should I close this issue? The PR is merged.

[jbicker]

Closed :-)