Struct Stack 

pub struct Stack(/* private fields */);

A stack with a list of stack frames.

StackFrames can have the following different types:

• source file (bottom of stack)
• modules ( e.g. mod my_lib { ... })
• init calls (e.g. std::geo2d::Circle(radius = 1m))
• function calls (e.g. std::print("µcad"))
• bodies (e.g. { ... })

Implementations

impl Stack

pub fn put_local( &mut self, id: Option<Identifier>, symbol: Symbol, ) -> EvalResult<()>

Put (or overwrite any existing) symbol into the current stack frame.

• id: identifier of the symbol to add/set. The symbol’s internal identifier is used when None.

pub fn current_module_name(&self) -> QualifiedName

Get name of current module.

pub fn current_workbench_name(&self) -> Option<QualifiedName>

Get name of current workbench.

pub fn current_frame(&self) -> Option<&StackFrame>

Return the current stack frame if there is any.

pub fn pretty_print_call_trace( &self, f: &mut dyn Write, source_by_hash: &impl GetSourceByHash, ) -> Result

Pretty print call trace.

Trait Implementations

impl Default for Stack

fn default() -> Stack

Returns the “default value” for a type.

impl Display for Stack

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

Formats the value using the given formatter.

impl Locals for Stack

fn current_name(&self) -> QualifiedName

Get name of current workbench or module (might be empty).

fn open(&mut self, frame: StackFrame)

Don’t use this function directly.

fn close(&mut self)

Close scope (stack pop).

fn set_local_value(&mut self, id: Identifier, value: Value) -> EvalResult<()>

Set/add a named local value to current locals.

fn get_local_value(&self, id: &Identifier) -> EvalResult<Value>

Get a named local value from locals.

fn get_model(&self) -> EvalResult<Model>

Get a property value from current model.

fn fetch(&self, id: &Identifier) -> EvalResult<Symbol>

Fetch a local variable from current stack frame.