Parser/parser/src/context.rs at main · RustPython/Parser · GitHub

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use crate::ast::{self, Expr, ExprContext};

pub(crate) fn set_context(expr: Expr, ctx: ExprContext) -> Expr {

match expr {

Expr::Name(ast::ExprName { id, range, .. }) => ast::ExprName { id, ctx, range }.into(),

Expr::Tuple(ast::ExprTuple { elts, range, .. }) => ast::ExprTuple {

elts: elts.into_iter().map(|elt| set_context(elt, ctx)).collect(),

range,

ctx,

}

.into(),

Expr::List(ast::ExprList { elts, range, .. }) => ast::ExprList {

elts: elts.into_iter().map(|elt| set_context(elt, ctx)).collect(),

range,

ctx,

}

.into(),

Expr::Attribute(ast::ExprAttribute {

value, attr, range, ..

}) => ast::ExprAttribute {

value,

attr,

range,

ctx,

}

.into(),

Expr::Subscript(ast::ExprSubscript {

value,

slice,

range,

}) => ast::ExprSubscript {

value,

slice,

range,

ctx,

}

.into(),

Expr::Starred(ast::ExprStarred { value, range, .. }) => ast::ExprStarred {

value: Box::new(set_context(*value, ctx)),

range,

ctx,

}

.into(),

_ => expr,

}

#[cfg(test)]

mod tests {

use crate::{ast, Parse};

#[test]

fn test_assign_name() {

let source = "x = (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_assign_tuple() {

let source = "(x, y) = (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

#[cfg(feature = "all-nodes-with-ranges")]

fn test_assign_list() {

let source = "[x, y] = (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_assign_attribute() {

let source = "x.y = (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_assign_subscript() {

let source = "x[y] = (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_assign_starred() {

let source = "(x, *y) = (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_assign_for() {

let source = "for x in (1, 2, 3): pass";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

#[cfg(feature = "all-nodes-with-ranges")]

fn test_assign_list_comp() {

let source = "x = [y for y in (1, 2, 3)]";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

#[cfg(feature = "all-nodes-with-ranges")]

fn test_assign_set_comp() {

let source = "x = {y for y in (1, 2, 3)}";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

#[cfg(feature = "all-nodes-with-ranges")]

fn test_assign_with() {

let source = "with 1 as x: pass";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_assign_named_expr() {

let source = "if x:= 1: pass";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_ann_assign_name() {

let source = "x: int = 1";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_aug_assign_name() {

let source = "x += 1";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_aug_assign_attribute() {

let source = "x.y += (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_aug_assign_subscript() {

let source = "x[y] += (1, 2, 3)";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_del_name() {

let source = "del x";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_del_attribute() {

let source = "del x.y";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

#[test]

fn test_del_subscript() {

let source = "del x[y]";

let parse_ast = ast::Suite::parse(source, "<test>").unwrap();

insta::assert_debug_snapshot!(parse_ast);

}

Parser/parser/src/context.rs at main · RustPython/Parser · GitHub

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