Struct SourceMapper 

pub struct SourceMapper<'a> {
    pub main_path: ModulePath,
    pub resolver: &'a dyn Resolver,
    pub mangler: &'a dyn Mangler,
    pub sourcemap: RefCell<BasicSourceMap>,
}

Generate a SourceMap by keeping track of loaded files and mangled identifiers.

SourceMapper is a proxy that implements Mangler and Resolver. To record a SourceMap, invoke the compiler with this instance as both the mangler and the resolver. Call SourceMapper::finish to get the final SourceMap once finished recording.

Fields

main_path: ModulePath

resolver: &'a dyn Resolver

mangler: &'a dyn Mangler

sourcemap: RefCell<BasicSourceMap>

Implementations

impl<'a> SourceMapper<'a>

pub fn new( main_path: ModulePath, resolver: &'a dyn Resolver, mangler: &'a dyn Mangler, ) -> Self

Create a new SourceMapper from a mangler and a resolver.

pub fn finish(self) -> BasicSourceMap

Consume this and return a BasicSourceMap.

Trait Implementations

impl<'a> Mangler for SourceMapper<'a>

fn mangle(&self, path: &ModulePath, item: &str) -> String

Turn an import path and item name into a mangled WGSL identifier.

fn unmangle(&self, mangled: &str) -> Option<(ModulePath, String)>

Reverse the Mangler::mangle operation. Implementing this is optional.

fn mangle_types( &self, item: &str, variant: u32, types: &[TypeExpression], ) -> String

Used for generics. Is experimental. Implementing is optional.

impl<'a> Resolver for SourceMapper<'a>

fn resolve_source( &self, path: &ModulePath, ) -> Result<Cow<'a, str>, ResolveError>

Try to resolve a source file identified by a module path.

fn display_name(&self, path: &ModulePath) -> Option<String>

Get the display name of the module path. Implementing this is optional.

fn fs_path(&self, path: &ModulePath) -> Result<PathBuf, ResolveError>

Get the filesystem path of the module path. Implementing this is optional.

fn canonical_path(&self, path: &ModulePath) -> ModulePath

Get the canonical form of a module path.

fn module_path(&self, _fs_path: &Path) -> Result<ModulePath, ResolveError>

Get the module path of the filesystem path. Implementing this is optional.