Struct passerine::common::lambda::Lambda [−][src]
Represents a single interpretable chunk of bytecode, think a function.
Fields
decls: usize
Number of variables declared in this scope.
code: Vec<u8>
Each byte is an opcode or a number-stream.
spans: Vec<(usize, Span)>
Each usize indexes the bytecode op that begins each line.
constants: Vec<Data>
Number-stream indexed, used to load constants.
captures: Vec<Captured>
List of positions of locals in the scope where this lambda is defined, indexes must be gauranteed to be data on the heap.
ffi: Vec<FFIFunction>
List of FFI functions (i.e. Rust functions) that can be called from this function.
Implementations
impl Lambda
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pub fn empty() -> Lambda
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Creates a new empty Lambda
to be filled.
pub fn emit(&mut self, op: Opcode)
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Emits an opcode as a byte.
pub fn emit_bytes(&mut self, bytes: &mut Vec<u8>)
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Emits a series of bytes.
pub fn emit_span(&mut self, span: &Span)
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Emits a span, should be called before an opcode is emmited. This function ties opcodes to spans in source. See index_span as well.
pub fn demit(&mut self)
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Removes the last emitted byte.
pub fn index_data(&mut self, data: Data) -> usize
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Given some data, this function adds it to the constants table, and returns the data’s index. The constants table is push only, so constants are identified by their index. The resulting usize can be split up into a number byte stream, and be inserted into the bytecode.
pub fn index_span(&self, index: usize) -> Span
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Look up the nearest span at or before the index of a specific bytecode op.
pub fn add_ffi(&mut self, function: FFIFunction) -> usize
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Adds a ffi function to the ffi table,
without checking for duplicates.
The Compiler
ensures that functions are valid
and not duplicated during codegen.
Trait Implementations
impl Clone for Lambda
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impl Debug for Lambda
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impl Display for Lambda
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fn fmt(&self, f: &mut Formatter<'_>) -> Result
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Dump a human-readable breakdown of a Lambda
’s bytecode.
Including constants, captures, and variables declared.
impl PartialEq<Lambda> for Lambda
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impl StructuralPartialEq for Lambda
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Auto Trait Implementations
impl !RefUnwindSafe for Lambda
impl !Send for Lambda
impl !Sync for Lambda
impl Unpin for Lambda
impl !UnwindSafe for Lambda
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
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>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,