Struct Block

pub struct Block { /* private fields */ }

Defines a code block. This is used to define a function body.

Implementations

impl Block

pub fn new(before: &str) -> Self

Returns an empty code block.

Arguments

• before - The contents to add before the block. This can be an empty “” if you don’t want anything before the block.

Examples

use rust_codegen::Block;
 
let mut block = Block::new("");

pub fn line<T>(&mut self, line: T) -> &mut Self

where T: ToString,

Push a line to the code block.

Arguments

• line - The line to add to the code block.

Examples

use rust_codegen::Block;
 
let mut block = Block::new("");
block.line("println!(\"Hello, world!\");");

pub fn push_block(&mut self, block: Block) -> &mut Self

Push a nested block to this block.

Arguments

• block - The block to push to this block.

Examples

use rust_codegen::Block;
 
let mut block_1 = Block::new("");
block_1.line("println!(\"Hello, world!\");");
 
let mut block_2 = Block::new("");
block_2.line("println!(\"from Rust!!\");");
 
block_1.push_block(block_2);

pub fn after(&mut self, after: &str) -> &mut Self

Add a snippet after the block.

Arguments

• after - The snippet to add after the code block.

Examples

use rust_codegen::Block;
 
let mut block = Block::new("This is before");
block.after("This is after");

pub fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the block using the given formatter.

Arguments

• fmt - The formatter to use.

Examples

use rust_codegen::{Block, Formatter};
 
let mut dest = String::new();
let mut fmt = Formatter::new(&mut dest);
 
let mut block = Block::new("This is before");
block.fmt(&mut fmt);

Trait Implementations

impl Clone for Block

fn clone(&self) -> Block

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Block

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.