# Struct syn::Block [−] [src]

    pub struct Block {
        pub brace_token: Brace,
        pub stmts: Vec<Stmt>,
    }

A braced block containing Rust statements.

This type is available only if Syn is built with the `"full"` feature.

## Fields

`brace_token: Brace` `stmts: Vec<Stmt>`

Statements in a block

## Implementations

### `impl Block` [src]

#### `pub fn parse_within(input: ParseStream<'_>) -> Result<Vec<Stmt>>` [src]

Parse the body of a block as zero or more statements, possibly including one trailing expression.

This function is available only if Syn is built with the `"parsing"` feature.

# Example

    use syn::{braced, token, Attribute, Block, Ident, Result, Stmt, Token};
    use syn::parse::{Parse, ParseStream};

    // Parse a function with no generics or parameter list.
    //
    //     fn playground {
    //         let mut x = 1;
    //         x += 1;
    //         println!("{}", x);
    //     }
    struct MiniFunction {
        attrs: Vec<Attribute>,
        fn_token: Token![fn],
        name: Ident,
        brace_token: token::Brace,
        stmts: Vec<Stmt>,
    }

    impl Parse for MiniFunction {
        fn parse(input: ParseStream) -> Result<Self> {
            let outer_attrs = input.call(Attribute::parse_outer)?;
            let fn_token: Token![fn] = input.parse()?;
            let name: Ident = input.parse()?;

            let content;
            let brace_token = braced!(content in input);
            let inner_attrs = content.call(Attribute::parse_inner)?;
            let stmts = content.call(Block::parse_within)?;

            Ok(MiniFunction {
                attrs: {
                    let mut attrs = outer_attrs;
                    attrs.extend(inner_attrs);
                    attrs
                },
                fn_token,
                name,
                brace_token,
                stmts,
            })
        }
    }

## Trait Implementations

### `impl Clone for Block` [src]

#### `fn clone(&self) -> Self` [src]

Returns a copy of the value. Read more

#### `pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl Parse for Block` [src]

#### `fn parse(input: ParseStream<'_>) -> Result<Self>` [src]

### `impl ToTokens for Block` [src]

#### `fn to_tokens(&self, tokens: &mut TokenStream)` [src]

Write `self` to the given `TokenStream`. Read more

#### `pub fn to_token_stream(&self) -> TokenStream` [src]

Convert `self` directly into a `TokenStream` object. Read more

#### `pub fn into_token_stream(self) -> TokenStream` [src]

Convert `self` directly into a `TokenStream` object. Read more

## Auto Trait Implementations

### `impl RefUnwindSafe for Block`

### `impl !Send for Block`

### `impl !Sync for Block`

### `impl Unpin for Block`

### `impl UnwindSafe for Block`

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &T` [src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut T` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T> Spanned for T where
T: Spanned + ?Sized,` [src]

#### `pub fn span(&Self) -> Span` [src]

Returns a `Span` covering the complete contents of this syntax tree node, or `Span::call_site()` if this node is empty. Read more

### `impl<T> ToOwned for T where
T: Clone,` [src]

#### `type Owned = T`

The resulting type after obtaining ownership.

#### `pub fn to_owned(&self) -> T` [src]

Creates owned data from borrowed data, usually by cloning. Read more

#### `pub fn clone_into(&self, target: &mut T)` [src]

🔬 This is a nightly-only experimental API. (`toowned_clone_into`)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>` [src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.