Struct Scope

pub struct Scope<'s> { /* private fields */ }

Provides controlled access to the parameters passed to a callable.

Implementations

impl<'s> Scope<'s>

pub fn nargs(&self) -> usize

Returns the number of arguments that can still be consumed.

pub fn pop_boolean(&mut self) -> bool

Pops the top of the stack as a boolean value.

pub fn pop_boolean_with_pos(&mut self) -> (bool, LineCol)

Pops the top of the stack as a boolean value.

pub fn pop_double(&mut self) -> f64

Pops the top of the stack as a double value.

pub fn pop_double_with_pos(&mut self) -> (f64, LineCol)

Pops the top of the stack as a double value.

pub fn pop_integer(&mut self) -> i32

Pops the top of the stack as an integer value.

pub fn pop_integer_with_pos(&mut self) -> (i32, LineCol)

Pops the top of the stack as an integer value.

pub fn pop_sep_tag(&mut self) -> ArgSep

Pops the top of the stack as a separator tag.

pub fn pop_string(&mut self) -> String

Pops the top of the stack as a string value.

pub fn pop_string_with_pos(&mut self) -> (String, LineCol)

Pops the top of the stack as a string value.

pub fn pop_value_tag(&mut self) -> ValueTag

Pops the top of the stack as a value tag.

pub fn pop_varref(&mut self) -> (SymbolKey, ExprType)

Pops the top of the stack as a variable reference.

pub fn pop_varref_with_pos(&mut self) -> (SymbolKey, ExprType, LineCol)

Pops the top of the stack as a variable reference.

pub fn return_any(self, value: Value) -> CallResult

Sets the return value of this function to value.

pub fn return_boolean(self, value: bool) -> CallResult

Sets the return value of this function to the boolean value.

pub fn return_double(self, value: f64) -> CallResult

Sets the return value of this function to the double value.

pub fn return_integer(self, value: i32) -> CallResult

Sets the return value of this function to the integer value.

pub fn return_string<S: Into<String>>(self, value: S) -> CallResult

Sets the return value of this function to the string value.

Trait Implementations

impl<'s> Drop for Scope<'s>

fn drop(&mut self)

Executes the destructor for this type.