Struct rustc_arena::DroplessArena[][src]

pub struct DroplessArena {
    start: Cell<*mut u8>,
    end: Cell<*mut u8>,
    chunks: RefCell<Vec<TypedArenaChunk<u8>>>,
}

Fields

start: Cell<*mut u8>

A pointer to the start of the free space.

end: Cell<*mut u8>

A pointer to the end of free space.

The allocation proceeds from the end of the chunk towards the start. When this pointer crosses the start pointer, a new chunk is allocated.

chunks: RefCell<Vec<TypedArenaChunk<u8>>>

A vector of arena chunks.

Implementations

Allocates a byte slice with specified layout from the current memory chunk. Returns None if there is no free space left to satisfy the request.

Allocates a slice of objects that are copied into the DroplessArena, returning a mutable reference to it. Will panic if passed a zero-sized type.

Panics:

  • Zero-sized types
  • Zero-length slices

Trait Implementations

Returns the “default value” for a type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Layout

Note: Most layout information is completely unstable and may be different between compiler versions and platforms. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 48 bytes