Support extracting of type information from tagged templates

It looks like even if I have a resolver that resolves to components that use tagged templates like styled-components, the type annotations aren't extracted.

Consider the following example:

import styled from "styled-components";

interface FlexProps {
    bool: boolean
}

const Flex = styled('div')<FlexProps>`
	display: flex;
`;

/** @component */
export default Flex;

When used with an react-docgen-annotation-resolver, the type definitions won't be extracted.

I scoped it to this place in code that's responsible for finding type annotations: https://github.com/okonet/react-docgen/blob/8fb401089e3fe2b38d41638bc5690436e23aceb3/src/utils/getTypeAnnotation.js#L22

and it looks like it's searching for specific key typeAnnotation in the AST. For styled-component example, though, it won't present. But what's going to present is

Node {
     type: 'TaggedTemplateExpression',
     start: 95,
     end: 138,
     loc: SourceLocation { start: [Position], end: [Position] },
     tag:
      Node {
        type: 'CallExpression',
        start: 95,
        end: 108,
        loc: [SourceLocation],
        callee: [Node],
        arguments: [Array] },
     quasi:
      Node {
        type: 'TemplateLiteral',
        start: 119,
        end: 138,
        loc: [SourceLocation],
        expressions: [],
        quasis: [Array] },
     typeParameters:
      Node {
        type: 'TSTypeParameterInstantiation',
        start: 108,
        end: 119,
        loc: [SourceLocation],
        params: [Array] } },

So, it looks like there is something related to types in there but its not being properly handled.

Does anyone has any pointers on how to fix it?

Bắt đầu trong src/utils/getTypeAnnotation.js, tại phần tra cứu type annotation được liên kết trong issue, sau đó so sánh AST TaggedTemplateExpression được hiển thị với các node hiện đang được xử lý. Theo dõi cách react-docgen-annotation-resolver sử dụng kết quả. Hoàn thành khi các định nghĩa type như FlexProps được trích xuất từ ví dụ styled-components.