Struct netsblox_ast::ParserBuilder

pub struct ParserBuilder { /* private fields */ }

Builder for Parser.

Implementations

impl ParserBuilder

pub fn optimize(&mut self, value: bool) -> &mut Self

If true, the emitted syntax tree will be processed by static optimizations. Defaults to false.

pub fn omit_nonhat_scripts(&mut self, value: bool) -> &mut Self

If true, the parser will skip script blocks that lack a hat block. This is typically desirable since free floating blocks are never automatically executed, and thus are typically not needed for translation efforts. Defaults to true.

pub fn adjust_to_zero_index(&mut self, value: bool) -> &mut Self

If true, the emitted syntax tree will be automatically adjusted to support convenient translation into languages with zero-based indexing. For instance, with this enabled, an item X of _ block will emit X-1 as the index rather than X, and similar for other list-based blocks. Defaults to false.

pub fn name_transformer(
    &mut self,
    value: Rc<dyn Fn(&str) -> Result<String, ()>>
) -> &mut Self

All symbol names in the program will be passed through this function, allowing easy conversion of Snap! names to, e.g., valid C-like identifiers. The default operation performs no conversion.

pub fn build(&self) -> Result<Parser, ParserBuilderError>

Builds a new Parser.

Errors

If a required field has not been initialized.

Trait Implementations

impl Clone for ParserBuilder

fn clone(&self) -> ParserBuilder

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for ParserBuilder

fn default() -> Self

Returns the “default value” for a type.