Enum CompileError

pub enum CompileError {
    UnknownVariable(Identifier),
    UnknownFunction(Identifier, usize),
    SameVariableInPattern(Identifier),
    UnknownLabel(Identifier),
    ModuleLoadError(ModuleLoadError),
    UnknownStringFormatter(Identifier),
}

Function calling convention

Caller

for func(arg0, arg1, closure2)

• push arg0
• push arg1
• push_closure { (copy of the current scope), (start address) }
• call (&func, return address)

Callee

for func($arg0, $arg1, closure2)

• new_frame { scope id, return address }
• pop_closure
• pop slot_1
• pop slot_0
• (function body here)
• return // pop frame

Important note

Things are compiled backwards. This makes us handling jump-ish code much easier, since most of the jumps (or reference to an address of a code to be precise) are going forward, so we don’t have to do something like “acquire a placeholder, replace it with jump when the jump target address was determined”.

Variants

UnknownVariable(Identifier)

UnknownFunction(Identifier, usize)

SameVariableInPattern(Identifier)

UnknownLabel(Identifier)

ModuleLoadError(ModuleLoadError)

UnknownStringFormatter(Identifier)

Trait Implementations

impl Debug for CompileError

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

Formats the value using the given formatter.

impl Display for CompileError

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

Formats the value using the given formatter.

impl Error for CompileError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<CompileError> for XQError

fn from(source: CompileError) -> Self

Converts to this type from the input type.

impl From<ModuleLoadError> for CompileError

fn from(source: ModuleLoadError) -> Self

Converts to this type from the input type.