arg macro to define arguments on commands
This commit is contained in:
parent
d5d2ac2bee
commit
1286f5f50e
@ -5,7 +5,7 @@ use syn::parse::{Error, Result};
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use syn::spanned::Spanned;
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use syn::{Attribute, Ident, Lit, LitStr, Meta, NestedMeta, Path};
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use crate::structures::PermissionLevel;
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use crate::structures::{ApplicationCommandOptionType, Arg, PermissionLevel};
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use crate::util::{AsOption, LitExt};
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#[derive(Debug, Clone, Copy, PartialEq)]
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@ -19,6 +19,9 @@ pub enum ValueKind {
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// #[<name>([<value>, <value>, <value>, ...])]
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List,
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// #[<name>([<prop> = <value>, <prop> = <value>, ...])]
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EqualsList,
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// #[<name>(<value>)]
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SingleList,
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}
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@ -29,6 +32,9 @@ impl fmt::Display for ValueKind {
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ValueKind::Name => f.pad("`#[<name>]`"),
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ValueKind::Equals => f.pad("`#[<name> = <value>]`"),
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ValueKind::List => f.pad("`#[<name>([<value>, <value>, <value>, ...])]`"),
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ValueKind::EqualsList => {
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f.pad("`#[<name>([<prop> = <value>, <prop> = <value>, ...])]`")
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}
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ValueKind::SingleList => f.pad("`#[<name>(<value>)]`"),
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}
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}
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@ -62,14 +68,19 @@ fn to_ident(p: Path) -> Result<Ident> {
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#[derive(Debug)]
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pub struct Values {
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pub name: Ident,
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pub literals: Vec<Lit>,
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pub literals: Vec<(Option<String>, Lit)>,
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pub kind: ValueKind,
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pub span: Span,
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}
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impl Values {
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#[inline]
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pub fn new(name: Ident, kind: ValueKind, literals: Vec<Lit>, span: Span) -> Self {
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pub fn new(
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name: Ident,
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kind: ValueKind,
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literals: Vec<(Option<String>, Lit)>,
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span: Span,
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) -> Self {
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Values {
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name,
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literals,
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@ -80,6 +91,19 @@ impl Values {
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}
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pub fn parse_values(attr: &Attribute) -> Result<Values> {
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fn is_list_or_named_list(meta: &NestedMeta) -> ValueKind {
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match meta {
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// catch if the nested value is a literal value
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NestedMeta::Lit(_) => ValueKind::List,
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// catch if the nested value is a meta value
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NestedMeta::Meta(m) => match m {
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// path => some quoted value
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Meta::Path(_) => ValueKind::List,
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Meta::List(_) | Meta::NameValue(_) => ValueKind::EqualsList,
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},
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}
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}
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let meta = attr.parse_meta()?;
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match meta {
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@ -96,15 +120,19 @@ pub fn parse_values(attr: &Attribute) -> Result<Values> {
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return Err(Error::new(attr.span(), "list cannot be empty"));
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}
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if is_list_or_named_list(nested.first().unwrap()) == ValueKind::List {
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let mut lits = Vec::with_capacity(nested.len());
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for meta in nested {
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match meta {
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NestedMeta::Lit(l) => lits.push(l),
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// catch if the nested value is a literal value
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NestedMeta::Lit(l) => lits.push((None, l)),
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// catch if the nested value is a meta value
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NestedMeta::Meta(m) => match m {
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// path => some quoted value
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Meta::Path(path) => {
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let i = to_ident(path)?;
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lits.push(Lit::Str(LitStr::new(&i.to_string(), i.span())))
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lits.push((None, Lit::Str(LitStr::new(&i.to_string(), i.span()))))
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}
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Meta::List(_) | Meta::NameValue(_) => {
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return Err(Error::new(attr.span(), "cannot nest a list; only accept literals and identifiers at this level"))
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@ -120,12 +148,43 @@ pub fn parse_values(attr: &Attribute) -> Result<Values> {
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};
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Ok(Values::new(name, kind, lits, attr.span()))
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} else {
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let mut lits = Vec::with_capacity(nested.len());
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for meta in nested {
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match meta {
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// catch if the nested value is a literal value
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NestedMeta::Lit(_) => {
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return Err(Error::new(attr.span(), "key-value pairs expected"))
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}
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// catch if the nested value is a meta value
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NestedMeta::Meta(m) => match m {
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Meta::NameValue(n) => {
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let name = to_ident(n.path)?.to_string();
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let value = n.lit;
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lits.push((Some(name), value));
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}
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Meta::List(_) | Meta::Path(_) => {
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return Err(Error::new(attr.span(), "key-value pairs expected"))
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}
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},
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}
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}
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Ok(Values::new(name, ValueKind::EqualsList, lits, attr.span()))
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}
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}
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Meta::NameValue(meta) => {
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let name = to_ident(meta.path)?;
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let lit = meta.lit;
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Ok(Values::new(name, ValueKind::Equals, vec![lit], attr.span()))
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Ok(Values::new(
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name,
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ValueKind::Equals,
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vec![(None, lit)],
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attr.span(),
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))
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}
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}
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}
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@ -194,7 +253,7 @@ impl AttributeOption for Vec<String> {
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Ok(values
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.literals
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.into_iter()
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.map(|lit| lit.to_str())
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.map(|(_, l)| l.to_str())
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.collect())
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}
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}
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@ -204,7 +263,7 @@ impl AttributeOption for String {
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fn parse(values: Values) -> Result<Self> {
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validate(&values, &[ValueKind::Equals, ValueKind::SingleList])?;
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Ok(values.literals[0].to_str())
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Ok(values.literals[0].1.to_str())
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}
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}
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@ -213,7 +272,7 @@ impl AttributeOption for bool {
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fn parse(values: Values) -> Result<Self> {
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validate(&values, &[ValueKind::Name, ValueKind::SingleList])?;
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Ok(values.literals.get(0).map_or(true, |l| l.to_bool()))
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Ok(values.literals.get(0).map_or(true, |(_, l)| l.to_bool()))
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}
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}
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@ -222,7 +281,7 @@ impl AttributeOption for Ident {
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fn parse(values: Values) -> Result<Self> {
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validate(&values, &[ValueKind::SingleList])?;
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Ok(values.literals[0].to_ident())
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Ok(values.literals[0].1.to_ident())
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}
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}
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@ -231,7 +290,11 @@ impl AttributeOption for Vec<Ident> {
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fn parse(values: Values) -> Result<Self> {
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validate(&values, &[ValueKind::List])?;
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Ok(values.literals.into_iter().map(|l| l.to_ident()).collect())
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Ok(values
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.literals
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.into_iter()
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.map(|(_, l)| l.to_ident())
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.collect())
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}
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}
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@ -242,7 +305,7 @@ impl AttributeOption for Option<String> {
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&[ValueKind::Name, ValueKind::Equals, ValueKind::SingleList],
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)?;
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Ok(values.literals.get(0).map(|l| l.to_str()))
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Ok(values.literals.get(0).map(|(_, l)| l.to_str()))
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}
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}
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@ -253,11 +316,47 @@ impl AttributeOption for PermissionLevel {
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Ok(values
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.literals
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.get(0)
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.map(|l| PermissionLevel::from_str(&*l.to_str()).unwrap())
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.map(|(_, l)| PermissionLevel::from_str(&*l.to_str()).unwrap())
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.unwrap())
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}
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}
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impl AttributeOption for Arg {
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fn parse(values: Values) -> Result<Self> {
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validate(&values, &[ValueKind::EqualsList])?;
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let mut arg: Arg = Default::default();
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for (key, value) in &values.literals {
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match key {
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Some(s) => match s.as_str() {
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"name" => {
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arg.name = value.to_str();
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}
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"description" => {
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arg.description = value.to_str();
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}
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"required" => {
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arg.required = value.to_bool();
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}
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"default" => {
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arg.default = value.to_bool();
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}
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"kind" => arg.kind = ApplicationCommandOptionType::from_str(value.to_str()),
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_ => {
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return Err(Error::new(key.span(), "unexpected attribute"));
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}
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},
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_ => {
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return Err(Error::new(key.span(), "unnamed attribute"));
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}
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}
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}
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Ok(arg)
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}
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}
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impl<T: AttributeOption> AttributeOption for AsOption<T> {
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#[inline]
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fn parse(values: Values) -> Result<Self> {
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@ -272,7 +371,7 @@ macro_rules! attr_option_num {
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fn parse(values: Values) -> Result<Self> {
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validate(&values, &[ValueKind::SingleList])?;
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Ok(match &values.literals[0] {
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Ok(match &values.literals[0].1 {
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Lit::Int(l) => l.base10_parse::<$n>()?,
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l => {
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let s = l.to_str();
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@ -1,5 +1,6 @@
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pub mod suffixes {
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pub const COMMAND: &str = "COMMAND";
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pub const ARG: &str = "ARG";
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}
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pub use self::suffixes::*;
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@ -2,6 +2,7 @@
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#![deny(broken_intra_doc_links)]
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use proc_macro::TokenStream;
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use proc_macro2::Ident;
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use quote::quote;
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use syn::{parse::Error, parse_macro_input, parse_quote, spanned::Spanned, Lit};
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@ -32,61 +33,6 @@ macro_rules! match_options {
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};
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}
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/// The heart of the attribute-based framework.
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///
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/// This is a function attribute macro. Using this on other Rust constructs won't work.
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///
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/// ## Options
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///
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/// To alter how the framework will interpret the command,
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/// you can provide options as attributes following this `#[command]` macro.
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///
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/// Each option has its own kind of data to stock and manipulate with.
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/// They're given to the option either with the `#[option(...)]` or `#[option = ...]` syntaxes.
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/// If an option doesn't require for any data to be supplied, then it's simply an empty `#[option]`.
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///
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/// If the input to the option is malformed, the macro will give you can error, describing
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/// the correct method for passing data, and what it should be.
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///
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/// The list of available options, is, as follows:
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///
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/// | Syntax | Description | Argument explanation |
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/// | ---------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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/// | `#[checks(identifiers)]` | Preconditions that must met before the command's execution. | `identifiers` is a comma separated list of identifiers referencing functions marked by the `#[check]` macro |
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/// | `#[aliases(names)]` | Alternative names to refer to this command. | `names` is a comma separated list of desired aliases. |
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/// | `#[description(desc)]` </br> `#[description = desc]` | The command's description or summary. | `desc` is a string describing the command. |
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/// | `#[usage(use)]` </br> `#[usage = use]` | The command's intended usage. | `use` is a string stating the schema for the command's usage. |
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/// | `#[example(ex)]` </br> `#[example = ex]` | An example of the command's usage. May be called multiple times to add many examples at once. | `ex` is a string |
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/// | `#[delimiters(delims)]` | Argument delimiters specific to this command. Overrides the global list of delimiters in the framework. | `delims` is a comma separated list of strings |
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/// | `#[min_args(min)]` </br> `#[max_args(max)]` </br> `#[num_args(min_and_max)]` | The expected length of arguments that the command must receive in order to function correctly. | `min`, `max` and `min_and_max` are 16-bit, unsigned integers. |
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/// | `#[required_permissions(perms)]` | Set of permissions the user must possess. | `perms` is a comma separated list of permission names.</br> These can be found at [Discord's official documentation](https://discord.com/developers/docs/topics/permissions). |
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/// | `#[allowed_roles(roles)]` | Set of roles the user must possess. | `roles` is a comma separated list of role names. |
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/// | `#[help_available]` </br> `#[help_available(b)]` | If the command should be displayed in the help message. | `b` is a boolean. If no boolean is provided, the value is assumed to be `true`. |
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/// | `#[only_in(ctx)]` | Which environment the command can be executed in. | `ctx` is a string with the accepted values `guild`/`guilds` and `dm`/`dms` (Direct Message). |
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/// | `#[bucket(name)]` </br> `#[bucket = name]` | What bucket will impact this command. | `name` is a string containing the bucket's name.</br> Refer to [the bucket example in the standard framework](https://docs.rs/serenity/*/serenity/framework/standard/struct.StandardFramework.html#method.bucket) for its usage. |
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/// | `#[owners_only]` </br> `#[owners_only(b)]` | If this command is exclusive to owners. | `b` is a boolean. If no boolean is provided, the value is assumed to be `true`. |
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/// | `#[owner_privilege]` </br> `#[owner_privilege(b)]` | If owners can bypass certain options. | `b` is a boolean. If no boolean is provided, the value is assumed to be `true`. |
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/// | `#[sub_commands(commands)]` | The sub or children commands of this command. They are executed in the form: `this-command sub-command`. | `commands` is a comma separated list of identifiers referencing functions marked by the `#[command]` macro. |
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///
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/// Documentation comments (`///`) applied onto the function are interpreted as sugar for the
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/// `#[description]` option. When more than one application of the option is performed,
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/// the text is delimited by newlines. This mimics the behaviour of regular doc-comments,
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/// which are sugar for the `#[doc = "..."]` attribute. If you wish to join lines together,
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/// however, you have to end the previous lines with `\$`.
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///
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/// # Notes
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/// The name of the command is parsed from the applied function,
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/// or may be specified inside the `#[command]` attribute, a lá `#[command("foobar")]`.
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///
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/// This macro attribute generates static instances of `Command` and `CommandOptions`,
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/// conserving the provided options.
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///
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/// The names of the instances are all uppercased names of the command name.
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/// For example, with a name of "foo":
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/// ```rust,ignore
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/// pub static FOO_COMMAND_OPTIONS: CommandOptions = CommandOptions { ... };
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/// pub static FOO_COMMAND: Command = Command { options: FOO_COMMAND_OPTIONS, ... };
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/// ```
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#[proc_macro_attribute]
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pub fn command(attr: TokenStream, input: TokenStream) -> TokenStream {
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let mut fun = parse_macro_input!(input as CommandFun);
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@ -107,6 +53,9 @@ pub fn command(attr: TokenStream, input: TokenStream) -> TokenStream {
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let name = &name[..];
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match name {
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"arg" => options
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.cmd_args
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.push(propagate_err!(attributes::parse(values))),
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"example" => {
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options
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.examples
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@ -134,6 +83,7 @@ pub fn command(attr: TokenStream, input: TokenStream) -> TokenStream {
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examples,
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required_permissions,
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allow_slash,
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mut cmd_args,
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} = options;
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propagate_err!(create_declaration_validations(&mut fun));
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@ -151,11 +101,47 @@ pub fn command(attr: TokenStream, input: TokenStream) -> TokenStream {
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let cooked = fun.cooked.clone();
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let command_path = quote!(crate::framework::Command);
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let arg_path = quote!(crate::framework::Arg);
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populate_fut_lifetimes_on_refs(&mut fun.args);
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let args = fun.args;
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(quote! {
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let arg_idents = cmd_args
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.iter()
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.map(|arg| n.with_suffix(arg.name.as_str()).with_suffix(ARG))
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.collect::<Vec<Ident>>();
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let mut tokens = cmd_args
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.iter_mut()
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.map(|arg| {
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let Arg {
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name,
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description,
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kind,
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required,
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default,
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} = arg;
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let an = n.with_suffix(name.as_str()).with_suffix(ARG);
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quote! {
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#(#cooked)*
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#[allow(missing_docs)]
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pub static #an: #arg_path = #arg_path {
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name: #name,
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description: #description,
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required: #required,
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default: #default,
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kind: #kind,
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};
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}
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})
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.fold(quote! {}, |mut a, b| {
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a.extend(b);
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a
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});
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tokens.extend(quote! {
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#(#cooked)*
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#[allow(missing_docs)]
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pub static #n: #command_path = #command_path {
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@ -166,6 +152,7 @@ pub fn command(attr: TokenStream, input: TokenStream) -> TokenStream {
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examples: &[#(#examples),*],
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required_permissions: #required_permissions,
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allow_slash: #allow_slash,
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args: &[#(&#arg_idents),*],
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};
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#(#cooked)*
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@ -179,163 +166,7 @@ pub fn command(attr: TokenStream, input: TokenStream) -> TokenStream {
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_output
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}.boxed()
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}
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})
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.into()
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}
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/// A macro that transforms `async` functions (and closures) into plain functions, whose
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/// return type is a boxed [`Future`].
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///
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/// # Transformation
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///
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/// The macro transforms an `async` function, which may look like this:
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///
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/// ```rust,no_run
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/// async fn foo(n: i32) -> i32 {
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/// n + 4
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/// }
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/// ```
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///
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/// into this (some details omitted):
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///
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/// ```rust,no_run
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/// use std::future::Future;
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/// use std::pin::Pin;
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///
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/// fn foo(n: i32) -> Pin<Box<dyn std::future::Future<Output = i32>>> {
|
||||
/// Box::pin(async move {
|
||||
/// n + 4
|
||||
/// })
|
||||
/// }
|
||||
/// ```
|
||||
///
|
||||
/// This transformation also applies to closures, which are converted more simply. For instance,
|
||||
/// this closure:
|
||||
///
|
||||
/// ```rust,no_run
|
||||
/// # #![feature(async_closure)]
|
||||
/// #
|
||||
/// async move |x: i32| {
|
||||
/// x * 2 + 4
|
||||
/// }
|
||||
/// # ;
|
||||
/// ```
|
||||
///
|
||||
/// is changed to:
|
||||
///
|
||||
/// ```rust,no_run
|
||||
/// |x: i32| {
|
||||
/// Box::pin(async move {
|
||||
/// x * 2 + 4
|
||||
/// })
|
||||
/// }
|
||||
/// # ;
|
||||
/// ```
|
||||
///
|
||||
/// ## How references are handled
|
||||
///
|
||||
/// When a function contains references, their lifetimes are constrained to the returned
|
||||
/// [`Future`]. If the above `foo` function had `&i32` as a parameter, the transformation would be
|
||||
/// instead this:
|
||||
///
|
||||
/// ```rust,no_run
|
||||
/// use std::future::Future;
|
||||
/// use std::pin::Pin;
|
||||
///
|
||||
/// fn foo<'fut>(n: &'fut i32) -> Pin<Box<dyn std::future::Future<Output = i32> + 'fut>> {
|
||||
/// Box::pin(async move {
|
||||
/// *n + 4
|
||||
/// })
|
||||
/// }
|
||||
/// ```
|
||||
///
|
||||
/// Explicitly specifying lifetimes (in the parameters or in the return type) or complex usage of
|
||||
/// lifetimes (e.g. `'a: 'b`) is not supported.
|
||||
///
|
||||
/// # Necessity for the macro
|
||||
///
|
||||
/// The macro performs the transformation to permit the framework to store and invoke the functions.
|
||||
///
|
||||
/// Functions marked with the `async` keyword will wrap their return type with the [`Future`] trait,
|
||||
/// which a state-machine generated by the compiler for the function will implement. This complicates
|
||||
/// matters for the framework, as [`Future`] is a trait. Depending on a type that implements a trait
|
||||
/// is done with two methods in Rust:
|
||||
///
|
||||
/// 1. static dispatch - generics
|
||||
/// 2. dynamic dispatch - trait objects
|
||||
///
|
||||
/// First method is infeasible for the framework. Typically, the framework will contain a plethora
|
||||
/// of different commands that will be stored in a single list. And due to the nature of generics,
|
||||
/// generic types can only resolve to a single concrete type. If commands had a generic type for
|
||||
/// their function's return type, the framework would be unable to store commands, as only a single
|
||||
/// [`Future`] type from one of the commands would get resolved, preventing other commands from being
|
||||
/// stored.
|
||||
///
|
||||
/// Second method involves heap allocations, but is the only working solution. If a trait is
|
||||
/// object-safe (which [`Future`] is), the compiler can generate a table of function pointers
|
||||
/// (a vtable) that correspond to certain implementations of the trait. This allows to decide
|
||||
/// which implementation to use at runtime. Thus, we can use the interface for the [`Future`] trait,
|
||||
/// and avoid depending on the underlying value (such as its size). To opt-in to dynamic dispatch,
|
||||
/// trait objects must be used with a pointer, like references (`&` and `&mut`) or `Box`. The
|
||||
/// latter is what's used by the macro, as the ownership of the value (the state-machine) must be
|
||||
/// given to the caller, the framework in this case.
|
||||
///
|
||||
/// The macro exists to retain the normal syntax of `async` functions (and closures), while
|
||||
/// granting the user the ability to pass those functions to the framework, like command functions
|
||||
/// and hooks (`before`, `after`, `on_dispatch_error`, etc.).
|
||||
///
|
||||
/// # Notes
|
||||
///
|
||||
/// If applying the macro on an `async` closure, you will need to enable the `async_closure`
|
||||
/// feature. Inputs to procedural macro attributes must be valid Rust code, and `async`
|
||||
/// closures are not stable yet.
|
||||
///
|
||||
/// [`Future`]: std::future::Future
|
||||
#[proc_macro_attribute]
|
||||
pub fn hook(_attr: TokenStream, input: TokenStream) -> TokenStream {
|
||||
let hook = parse_macro_input!(input as Hook);
|
||||
|
||||
match hook {
|
||||
Hook::Function(mut fun) => {
|
||||
let cooked = fun.cooked;
|
||||
let visibility = fun.visibility;
|
||||
let fun_name = fun.name;
|
||||
let body = fun.body;
|
||||
let ret = fun.ret;
|
||||
|
||||
populate_fut_lifetimes_on_refs(&mut fun.args);
|
||||
let args = fun.args;
|
||||
|
||||
(quote! {
|
||||
#(#cooked)*
|
||||
#[allow(missing_docs)]
|
||||
#visibility fn #fun_name<'fut>(#(#args),*) -> ::serenity::futures::future::BoxFuture<'fut, #ret> {
|
||||
use ::serenity::futures::future::FutureExt;
|
||||
|
||||
async move {
|
||||
let _output: #ret = { #(#body)* };
|
||||
#[allow(unreachable_code)]
|
||||
_output
|
||||
}.boxed()
|
||||
}
|
||||
})
|
||||
.into()
|
||||
}
|
||||
Hook::Closure(closure) => {
|
||||
let cooked = closure.cooked;
|
||||
let args = closure.args;
|
||||
let ret = closure.ret;
|
||||
let body = closure.body;
|
||||
|
||||
(quote! {
|
||||
#(#cooked)*
|
||||
|#args| #ret {
|
||||
use ::serenity::futures::future::FutureExt;
|
||||
|
||||
async move { #body }.boxed()
|
||||
}
|
||||
})
|
||||
.into()
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
tokens.into()
|
||||
}
|
||||
|
@ -1,14 +1,10 @@
|
||||
use std::str::FromStr;
|
||||
|
||||
use proc_macro2::TokenStream as TokenStream2;
|
||||
use quote::{quote, ToTokens};
|
||||
use syn::{
|
||||
braced,
|
||||
parse::{Error, Parse, ParseStream, Result},
|
||||
punctuated::Punctuated,
|
||||
spanned::Spanned,
|
||||
Attribute, Block, Expr, ExprClosure, FnArg, Ident, Pat, ReturnType, Stmt, Token, Type,
|
||||
Visibility,
|
||||
Attribute, Block, FnArg, Ident, Pat, ReturnType, Stmt, Token, Type, Visibility,
|
||||
};
|
||||
|
||||
use crate::util::{self, Argument, AsOption, Parenthesised};
|
||||
@ -169,115 +165,6 @@ impl ToTokens for CommandFun {
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct FunctionHook {
|
||||
/// `#[...]`-style attributes.
|
||||
pub attributes: Vec<Attribute>,
|
||||
/// Populated by cooked attributes. These are attributes outside of the realm of this crate's procedural macros
|
||||
/// and will appear in generated output.
|
||||
pub cooked: Vec<Attribute>,
|
||||
pub visibility: Visibility,
|
||||
pub name: Ident,
|
||||
pub args: Vec<Argument>,
|
||||
pub ret: Type,
|
||||
pub body: Vec<Stmt>,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct ClosureHook {
|
||||
/// `#[...]`-style attributes.
|
||||
pub attributes: Vec<Attribute>,
|
||||
/// Populated by cooked attributes. These are attributes outside of the realm of this crate's procedural macros
|
||||
/// and will appear in generated output.
|
||||
pub cooked: Vec<Attribute>,
|
||||
pub args: Punctuated<Pat, Token![,]>,
|
||||
pub ret: ReturnType,
|
||||
pub body: Box<Expr>,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum Hook {
|
||||
Function(FunctionHook),
|
||||
Closure(ClosureHook),
|
||||
}
|
||||
|
||||
impl Parse for Hook {
|
||||
fn parse(input: ParseStream<'_>) -> Result<Self> {
|
||||
let mut attributes = input.call(Attribute::parse_outer)?;
|
||||
let cooked = remove_cooked(&mut attributes);
|
||||
|
||||
if is_function(input) {
|
||||
parse_function_hook(input, attributes, cooked).map(Self::Function)
|
||||
} else {
|
||||
parse_closure_hook(input, attributes, cooked).map(Self::Closure)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn is_function(input: ParseStream<'_>) -> bool {
|
||||
input.peek(Token![pub]) || (input.peek(Token![async]) && input.peek2(Token![fn]))
|
||||
}
|
||||
|
||||
fn parse_function_hook(
|
||||
input: ParseStream<'_>,
|
||||
attributes: Vec<Attribute>,
|
||||
cooked: Vec<Attribute>,
|
||||
) -> Result<FunctionHook> {
|
||||
let visibility = input.parse::<Visibility>()?;
|
||||
|
||||
input.parse::<Token![async]>()?;
|
||||
input.parse::<Token![fn]>()?;
|
||||
|
||||
let name = input.parse()?;
|
||||
|
||||
// (...)
|
||||
let Parenthesised(args) = input.parse::<Parenthesised<FnArg>>()?;
|
||||
|
||||
let ret = match input.parse::<ReturnType>()? {
|
||||
ReturnType::Type(_, t) => (*t).clone(),
|
||||
ReturnType::Default => {
|
||||
Type::Verbatim(TokenStream2::from_str("()").expect("Invalid str to create `()`-type"))
|
||||
}
|
||||
};
|
||||
|
||||
// { ... }
|
||||
let bcont;
|
||||
braced!(bcont in input);
|
||||
let body = bcont.call(Block::parse_within)?;
|
||||
|
||||
let args = args
|
||||
.into_iter()
|
||||
.map(parse_argument)
|
||||
.collect::<Result<Vec<_>>>()?;
|
||||
|
||||
Ok(FunctionHook {
|
||||
attributes,
|
||||
cooked,
|
||||
visibility,
|
||||
name,
|
||||
args,
|
||||
ret,
|
||||
body,
|
||||
})
|
||||
}
|
||||
|
||||
fn parse_closure_hook(
|
||||
input: ParseStream<'_>,
|
||||
attributes: Vec<Attribute>,
|
||||
cooked: Vec<Attribute>,
|
||||
) -> Result<ClosureHook> {
|
||||
input.parse::<Token![async]>()?;
|
||||
let closure = input.parse::<ExprClosure>()?;
|
||||
|
||||
Ok(ClosureHook {
|
||||
attributes,
|
||||
cooked,
|
||||
args: closure.inputs,
|
||||
ret: closure.output,
|
||||
body: closure.body,
|
||||
})
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum PermissionLevel {
|
||||
Unrestricted,
|
||||
@ -327,14 +214,89 @@ impl ToTokens for PermissionLevel {
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub(crate) enum ApplicationCommandOptionType {
|
||||
SubCommand,
|
||||
SubCommandGroup,
|
||||
String,
|
||||
Integer,
|
||||
Boolean,
|
||||
User,
|
||||
Channel,
|
||||
Role,
|
||||
Mentionable,
|
||||
Unknown,
|
||||
}
|
||||
|
||||
impl ApplicationCommandOptionType {
|
||||
pub fn from_str(s: String) -> Self {
|
||||
match s.as_str() {
|
||||
"SubCommand" => Self::SubCommand,
|
||||
"SubCommandGroup" => Self::SubCommandGroup,
|
||||
"String" => Self::String,
|
||||
"Integer" => Self::Integer,
|
||||
"Boolean" => Self::Boolean,
|
||||
"User" => Self::User,
|
||||
"Channel" => Self::Channel,
|
||||
"Role" => Self::Role,
|
||||
"Mentionable" => Self::Mentionable,
|
||||
_ => Self::Unknown,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl ToTokens for ApplicationCommandOptionType {
|
||||
fn to_tokens(&self, stream: &mut TokenStream2) {
|
||||
let path = quote!(serenity::model::interactions::ApplicationCommandOptionType);
|
||||
let variant = match self {
|
||||
ApplicationCommandOptionType::SubCommand => quote!(SubCommand),
|
||||
ApplicationCommandOptionType::SubCommandGroup => quote!(SubCommandGroup),
|
||||
ApplicationCommandOptionType::String => quote!(String),
|
||||
ApplicationCommandOptionType::Integer => quote!(Integer),
|
||||
ApplicationCommandOptionType::Boolean => quote!(Boolean),
|
||||
ApplicationCommandOptionType::User => quote!(User),
|
||||
ApplicationCommandOptionType::Channel => quote!(Channel),
|
||||
ApplicationCommandOptionType::Role => quote!(Role),
|
||||
ApplicationCommandOptionType::Mentionable => quote!(Mentionable),
|
||||
ApplicationCommandOptionType::Unknown => quote!(Unknown),
|
||||
};
|
||||
|
||||
stream.extend(quote! {
|
||||
#path::#variant
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub(crate) struct Arg {
|
||||
pub name: String,
|
||||
pub description: String,
|
||||
pub kind: ApplicationCommandOptionType,
|
||||
pub required: bool,
|
||||
pub default: bool,
|
||||
}
|
||||
|
||||
impl Default for Arg {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
name: String::new(),
|
||||
description: String::new(),
|
||||
kind: ApplicationCommandOptionType::String,
|
||||
required: false,
|
||||
default: false,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Default)]
|
||||
pub struct Options {
|
||||
pub(crate) struct Options {
|
||||
pub aliases: Vec<String>,
|
||||
pub description: AsOption<String>,
|
||||
pub usage: AsOption<String>,
|
||||
pub examples: Vec<String>,
|
||||
pub required_permissions: PermissionLevel,
|
||||
pub allow_slash: bool,
|
||||
pub cmd_args: Vec<Arg>,
|
||||
}
|
||||
|
||||
impl Options {
|
||||
|
@ -1,4 +1,5 @@
|
||||
use crate::{
|
||||
framework::RegexFramework,
|
||||
guild_data::CtxGuildData,
|
||||
join_channel, play_audio,
|
||||
sound::{JoinSoundCtx, Sound},
|
||||
@ -8,7 +9,9 @@ use crate::{
|
||||
use serenity::{
|
||||
async_trait,
|
||||
client::{Context, EventHandler},
|
||||
model::{channel::Channel, guild::Guild, id::GuildId, voice::VoiceState},
|
||||
model::{
|
||||
channel::Channel, guild::Guild, id::GuildId, interactions::Interaction, voice::VoiceState,
|
||||
},
|
||||
utils::shard_id,
|
||||
};
|
||||
|
||||
@ -33,6 +36,18 @@ pub struct Handler;
|
||||
|
||||
#[serenity::async_trait]
|
||||
impl EventHandler for Handler {
|
||||
async fn cache_ready(&self, ctx: Context, _: Vec<GuildId>) {
|
||||
let framework = ctx
|
||||
.data
|
||||
.read()
|
||||
.await
|
||||
.get::<RegexFramework>()
|
||||
.cloned()
|
||||
.expect("RegexFramework not found in context");
|
||||
|
||||
framework.build_slash(ctx).await;
|
||||
}
|
||||
|
||||
async fn guild_create(&self, ctx: Context, guild: Guild, is_new: bool) {
|
||||
if is_new {
|
||||
if let Ok(token) = env::var("DISCORDBOTS_TOKEN") {
|
||||
@ -154,4 +169,8 @@ SELECT name, id, plays, public, server_id, uploader_id
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
async fn interaction_create(&self, ctx: Context, interaction: Interaction) {
|
||||
//
|
||||
}
|
||||
}
|
||||
|
@ -1,7 +1,8 @@
|
||||
use serenity::{
|
||||
async_trait,
|
||||
builder::CreateEmbed,
|
||||
cache::Cache,
|
||||
client::Context,
|
||||
constants::MESSAGE_CODE_LIMIT,
|
||||
framework::{
|
||||
standard::{Args, CommandResult, Delimiter},
|
||||
Framework,
|
||||
@ -13,7 +14,9 @@ use serenity::{
|
||||
guild::{Guild, Member},
|
||||
id::{ChannelId, GuildId, UserId},
|
||||
interactions::Interaction,
|
||||
prelude::{ApplicationCommandOptionType, InteractionResponseType},
|
||||
},
|
||||
prelude::TypeMapKey,
|
||||
Result as SerenityResult,
|
||||
};
|
||||
|
||||
@ -24,9 +27,6 @@ use regex::{Match, Regex, RegexBuilder};
|
||||
use std::{collections::HashMap, fmt};
|
||||
|
||||
use crate::{guild_data::CtxGuildData, MySQL};
|
||||
use serenity::builder::CreateEmbed;
|
||||
use serenity::cache::Cache;
|
||||
use serenity::model::prelude::InteractionResponseType;
|
||||
use std::sync::Arc;
|
||||
|
||||
type CommandFn = for<'fut> fn(
|
||||
@ -190,6 +190,15 @@ pub enum PermissionLevel {
|
||||
Restricted,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct Arg {
|
||||
pub name: &'static str,
|
||||
pub description: &'static str,
|
||||
pub kind: ApplicationCommandOptionType,
|
||||
pub required: bool,
|
||||
pub default: bool,
|
||||
}
|
||||
|
||||
pub struct Command {
|
||||
pub fun: CommandFn,
|
||||
pub names: &'static [&'static str],
|
||||
@ -198,6 +207,7 @@ pub struct Command {
|
||||
pub examples: &'static [&'static str],
|
||||
pub required_permissions: PermissionLevel,
|
||||
pub allow_slash: bool,
|
||||
pub args: &'static [&'static Arg],
|
||||
}
|
||||
|
||||
impl Command {
|
||||
@ -267,53 +277,11 @@ impl fmt::Debug for Command {
|
||||
f.debug_struct("Command")
|
||||
.field("name", &self.names[0])
|
||||
.field("required_permissions", &self.required_permissions)
|
||||
.field("args", &self.args)
|
||||
.finish()
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
pub trait SendIterator {
|
||||
async fn say_lines(
|
||||
self,
|
||||
http: impl AsRef<Http> + Send + Sync + 'async_trait,
|
||||
content: impl Iterator<Item = String> + Send + 'async_trait,
|
||||
) -> SerenityResult<()>;
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl SendIterator for ChannelId {
|
||||
async fn say_lines(
|
||||
self,
|
||||
http: impl AsRef<Http> + Send + Sync + 'async_trait,
|
||||
content: impl Iterator<Item = String> + Send + 'async_trait,
|
||||
) -> SerenityResult<()> {
|
||||
let mut current_content = String::new();
|
||||
|
||||
for line in content {
|
||||
if current_content.len() + line.len() > MESSAGE_CODE_LIMIT as usize {
|
||||
self.send_message(&http, |m| {
|
||||
m.allowed_mentions(|am| am.empty_parse())
|
||||
.content(¤t_content)
|
||||
})
|
||||
.await?;
|
||||
|
||||
current_content = line;
|
||||
} else {
|
||||
current_content = format!("{}\n{}", current_content, line);
|
||||
}
|
||||
}
|
||||
if !current_content.is_empty() {
|
||||
self.send_message(&http, |m| {
|
||||
m.allowed_mentions(|am| am.empty_parse())
|
||||
.content(¤t_content)
|
||||
})
|
||||
.await?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
pub struct RegexFramework {
|
||||
commands: HashMap<String, &'static Command>,
|
||||
command_matcher: Regex,
|
||||
@ -323,6 +291,10 @@ pub struct RegexFramework {
|
||||
case_insensitive: bool,
|
||||
}
|
||||
|
||||
impl TypeMapKey for RegexFramework {
|
||||
type Value = Arc<RegexFramework>;
|
||||
}
|
||||
|
||||
impl RegexFramework {
|
||||
pub fn new<T: Into<u64>>(client_id: T) -> Self {
|
||||
Self {
|
||||
@ -354,6 +326,8 @@ impl RegexFramework {
|
||||
}
|
||||
|
||||
pub fn add_command(mut self, command: &'static Command) -> Self {
|
||||
info!("{:?}", command);
|
||||
|
||||
for name in command.names {
|
||||
self.commands.insert(name.to_string(), command);
|
||||
}
|
||||
@ -388,6 +362,10 @@ impl RegexFramework {
|
||||
|
||||
self
|
||||
}
|
||||
|
||||
pub async fn build_slash(&self, http: impl AsRef<Http>) {
|
||||
//
|
||||
}
|
||||
}
|
||||
|
||||
enum PermissionCheck {
|
||||
|
42
src/main.rs
42
src/main.rs
@ -215,6 +215,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
|
||||
|
||||
framework = framework.build();
|
||||
|
||||
let framework_arc = Arc::new(framework);
|
||||
|
||||
let mut client =
|
||||
Client::builder(&env::var("DISCORD_TOKEN").expect("Missing token from environment"))
|
||||
.intents(
|
||||
@ -222,7 +224,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
|
||||
| GatewayIntents::GUILD_MESSAGES
|
||||
| GatewayIntents::GUILDS,
|
||||
)
|
||||
.framework(framework)
|
||||
.framework_arc(framework_arc.clone())
|
||||
.application_id(application_id.0)
|
||||
.event_handler(Handler)
|
||||
.register_songbird()
|
||||
@ -242,7 +244,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
|
||||
data.insert::<GuildDataCache>(guild_data_cache);
|
||||
data.insert::<JoinSoundCache>(join_sound_cache);
|
||||
data.insert::<MySQL>(mysql_pool);
|
||||
|
||||
data.insert::<RegexFramework>(framework_arc.clone());
|
||||
data.insert::<ReqwestClient>(Arc::new(reqwest::Client::new()));
|
||||
|
||||
if let Some(audio_index) = audio_index {
|
||||
@ -425,6 +427,20 @@ Please select a category from the following:
|
||||
#[command]
|
||||
#[aliases("p")]
|
||||
#[required_permissions(Managed)]
|
||||
#[arg(
|
||||
name = "query",
|
||||
description = "Play sound with the specified name or ID",
|
||||
kind = "String",
|
||||
required = true,
|
||||
default = true
|
||||
)]
|
||||
#[arg(
|
||||
name = "loop",
|
||||
description = "Whether to loop the sound or not (default: no)",
|
||||
kind = "Boolean",
|
||||
required = false,
|
||||
default = false
|
||||
)]
|
||||
async fn play(
|
||||
ctx: &Context,
|
||||
invoke: &(dyn CommandInvoke + Sync + Send),
|
||||
@ -443,8 +459,14 @@ async fn play(
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[command]
|
||||
#[command("loop")]
|
||||
#[required_permissions(Managed)]
|
||||
#[arg(
|
||||
name = "query",
|
||||
description = "Play sound with the specified name or ID",
|
||||
kind = "String",
|
||||
required = true
|
||||
)]
|
||||
async fn loop_play(
|
||||
ctx: &Context,
|
||||
invoke: &(dyn CommandInvoke + Sync + Send),
|
||||
@ -524,6 +546,12 @@ async fn play_cmd(ctx: &Context, guild: Guild, user_id: UserId, args: Args, loop
|
||||
|
||||
#[command("ambience")]
|
||||
#[required_permissions(Managed)]
|
||||
#[arg(
|
||||
name = "name",
|
||||
description = "Play sound with the specified name",
|
||||
kind = "String",
|
||||
required = false
|
||||
)]
|
||||
async fn play_ambience(
|
||||
ctx: &Context,
|
||||
invoke: &(dyn CommandInvoke + Sync + Send),
|
||||
@ -687,6 +715,7 @@ There is a maximum sound limit per user. This can be removed by subscribing at *
|
||||
}
|
||||
|
||||
#[command("volume")]
|
||||
#[aliases("vol")]
|
||||
#[required_permissions(Managed)]
|
||||
async fn change_volume(
|
||||
ctx: &Context,
|
||||
@ -753,6 +782,7 @@ async fn change_volume(
|
||||
|
||||
#[command("prefix")]
|
||||
#[required_permissions(Restricted)]
|
||||
#[allow_slash(false)]
|
||||
async fn change_prefix(
|
||||
ctx: &Context,
|
||||
invoke: &(dyn CommandInvoke + Sync + Send),
|
||||
@ -1057,6 +1087,12 @@ INSERT INTO roles (guild_id, role)
|
||||
}
|
||||
|
||||
#[command("list")]
|
||||
#[arg(
|
||||
name = "me",
|
||||
description = "Whether to list your sounds or server sounds (default: server)",
|
||||
kind = "Boolean",
|
||||
required = false
|
||||
)]
|
||||
async fn list_sounds(
|
||||
ctx: &Context,
|
||||
invoke: &(dyn CommandInvoke + Sync + Send),
|
||||
|
Loading…
Reference in New Issue
Block a user