RustPython-Parser/core/src/mode.rs
Jeong YunWon a3d9d8cb14 numerous refactoring
- Split parser core and compiler core. Fix #14
- AST int type to `u32`
- Updated asdl_rs.py and update_asdl.sh fix #6
- Use `ruff_python_ast::SourceLocation` for Python source location. Deleted our own Location.
- Renamed ast::Located to ast::Attributed to distinguish terms for TextSize and SourceLocation
- `ast::<Node>`s for TextSize located ast. `ast::located::<Node>` for Python source located ast.
- And also strictly renaming `located` to refer only python location related interfaces.
- `SourceLocator` to convert locations.
- New `source-code` features of to disable python locations when unnecessary.
- Also including fully merging https://github.com/astral-sh/RustPython/pull/4 closes #9
2023-05-10 14:35:38 +09:00

33 lines
967 B
Rust

//! Control in the different modes by which a source file can be parsed.
/// The mode argument specifies in what way code must be parsed.
#[derive(Clone, Copy)]
pub enum Mode {
/// The code consists of a sequence of statements.
Module,
/// The code consists of a sequence of interactive statement.
Interactive,
/// The code consists of a single expression.
Expression,
}
impl std::str::FromStr for Mode {
type Err = ModeParseError;
fn from_str(s: &str) -> Result<Self, ModeParseError> {
match s {
"exec" | "single" => Ok(Mode::Module),
"eval" => Ok(Mode::Expression),
_ => Err(ModeParseError),
}
}
}
/// Returned when a given mode is not valid.
#[derive(Debug)]
pub struct ModeParseError;
impl std::fmt::Display for ModeParseError {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, r#"mode must be "exec", "eval", or "single""#)
}
}