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//! `Loc` implementation for Lua.
#![allow(
clippy::enum_glob_use,
clippy::match_same_arms,
clippy::struct_field_names,
clippy::wildcard_imports
)]
#![allow(
clippy::cast_precision_loss,
clippy::cast_possible_truncation,
clippy::cast_sign_loss
)]
use super::*;
impl Loc for LuaCode {
fn compute(node: &Node, stats: &mut Stats, is_func_space: bool, is_unit: bool) {
let (start, end) = init(node, stats, is_func_space, is_unit);
match node.kind_id().into() {
// Skip root.
Lua::Chunk => {}
// A Lua long-bracket string (`[[…]]`) can span several rows;
// credit every spanned row to PLOC to match Python's #415
// decision (#778).
Lua::String => {
add_multiline_string_ploc(node, stats, start, end);
}
// Skip tokens that are children of comment nodes.
// Lua's comment nodes have children: DASHDASH / LBRACKLBRACK (openers),
// CommentContent / CommentContent2 (body), and RBRACKRBRACK (block closer).
// Without this guard they hit the `_` arm and add their rows to `ploc`,
// which rows are already counted in `only_comment_lines`, producing
// negative `blank`. LBRACKLBRACK / RBRACKRBRACK also appear as children of
// string nodes, so we guard on the parent kind to avoid skipping them there.
Lua::DASHDASH | Lua::CommentContent | Lua::CommentContent2 => {}
Lua::LBRACKLBRACK | Lua::RBRACKRBRACK
if node.parent().is_some_and(|p| p.kind_id() == Lua::Comment) => {}
Lua::Comment => {
add_cloc_lines(stats, start, end);
}
// Standalone assignment (`x = 1`). Skip when nested inside a local variable
// declaration (`local x = 1`) — the parent VariableDeclaration already counts.
Lua::AssignmentStatement | Lua::AssignmentStatement2
if !node.parent().is_some_and(|p| {
matches!(
p.kind_id().into(),
Lua::VariableDeclaration
| Lua::VariableDeclaration2
| Lua::ImplicitVariableDeclaration
)
}) =>
{
stats.lloc.logical_lines += 1;
}
Lua::IfStatement
| Lua::ForStatement
| Lua::WhileStatement
| Lua::RepeatStatement
| Lua::DoStatement
| Lua::ReturnStatement
| Lua::BreakStatement
| Lua::GotoStatement
| Lua::LabelStatement
| Lua::VariableDeclaration
| Lua::VariableDeclaration2
| Lua::ImplicitVariableDeclaration
| Lua::FunctionDeclaration
| Lua::FunctionDeclaration2
| Lua::FunctionDeclaration3 => {
stats.lloc.logical_lines += 1;
}
_ => {
check_comment_ends_on_code_line(stats, start);
stats.ploc.lines.insert(start);
}
}
}
}