33 lines
1.1 KiB
Rust
33 lines
1.1 KiB
Rust
use rustpython_ast::{Constant, ExprKind, Stmt, StmtKind};
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use crate::ast::types::Range;
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use crate::checkers::ast::Checker;
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use crate::registry::Diagnostic;
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use crate::violations;
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// B018
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pub fn useless_expression(checker: &mut Checker, body: &[Stmt]) {
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for stmt in body {
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if let StmtKind::Expr { value } = &stmt.node {
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match &value.node {
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ExprKind::List { .. } | ExprKind::Dict { .. } | ExprKind::Set { .. } => {
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checker.diagnostics.push(Diagnostic::new(
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violations::UselessExpression,
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Range::from_located(value),
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));
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}
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ExprKind::Constant { value: val, .. } => match &val {
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Constant::Str { .. } | Constant::Ellipsis => {}
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_ => {
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checker.diagnostics.push(Diagnostic::new(
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violations::UselessExpression,
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Range::from_located(value),
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));
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}
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},
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_ => {}
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}
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}
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}
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}
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