tidos_macro 0.6.6

Procedural macros for the Tidos component framework.
Documentation 
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use proc_macro2::{Delimiter, TokenTree};
use syn::buffer::Cursor;

pub fn matches_corresponding_command_tag(cursor: Cursor, target_tag: &str) -> bool {
	if let Some((a, _, _)) = cursor.group(Delimiter::Brace) {
		let peeked: Vec<TokenTree> = a.token_stream().into_iter().take(2).collect();

		peeked.len() == 2
			&& matches!(peeked[0], TokenTree::Punct(ref punct) if punct.as_char() == '/')
			&& matches!(peeked[1], TokenTree::Ident(ref ident) if ident.to_string() == target_tag)
	} else {
		false
	}
}

pub fn matches_case_statement(cursor: Cursor) -> bool {
	if let Some((a, _, _)) = cursor.group(Delimiter::Brace) {
		let peeked: Vec<TokenTree> = a.token_stream().into_iter().take(3).collect();

		peeked.len() >= 3
			&& matches!(peeked[0], TokenTree::Punct(ref punct) if punct.as_char() == ':')
			&& matches!(peeked[1], TokenTree::Ident(ref ident) if ident.to_string().as_str() == "case")
	} else {
		false
	}
}

pub fn is_cursor_on_new_if_branch(cursor: &Cursor) -> bool {
	is_cursor_on_else_if_branch(cursor)
		|| is_cursor_on_else_branch(cursor)
		|| is_cursor_on_end_of_if_branch(cursor)
}

pub fn is_cursor_on_else_if_branch(cursor: &Cursor) -> bool {
	if let Some((a, _, _)) = cursor.group(Delimiter::Brace) {
		let peeked: Vec<TokenTree> = a.token_stream().into_iter().take(3).collect();

		peeked.len() >= 3
			&& matches!(&peeked[0], TokenTree::Punct(p) if p.as_char() == ':')
			&& matches!(&peeked[1], TokenTree::Ident(i) if i.to_string() == "else")
			&& matches!(&peeked[2], TokenTree::Ident(i) if i.to_string() == "if")
	} else {
		false
	}
}

pub fn is_cursor_on_else_branch(cursor: &Cursor) -> bool {
	if let Some((a, _, _)) = cursor.group(Delimiter::Brace) {
		let peeked: Vec<TokenTree> = a.token_stream().into_iter().take(2).collect();

		peeked.len() >= 2
			&& matches!(&peeked[0], TokenTree::Punct(p) if p.as_char() == ':')
			&& matches!(&peeked[1], TokenTree::Ident(i) if i.to_string() == "else")
	} else {
		false
	}
}

pub fn is_cursor_on_end_of_if_branch(cursor: &Cursor) -> bool {
	if let Some((a, _, _)) = cursor.group(Delimiter::Brace) {
		let peeked: Vec<TokenTree> = a.token_stream().into_iter().take(2).collect();

		peeked.len() >= 2
			&& matches!(&peeked[0], TokenTree::Punct(p) if p.as_char() == '/')
			&& matches!(&peeked[1], TokenTree::Ident(i) if i.to_string() == "if")
	} else {
		false
	}
}