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//! `Loc` implementation for Mozcpp.
#![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 MozcppCode {
fn compute<'a>(
node: &Node<'a>,
code: &[u8],
ancestors: Ancestors<'a, '_>,
stats: &mut Stats,
is_func_space: bool,
) {
use Mozcpp::*;
let start = init(node, stats, is_func_space);
match node.kind_id().into() {
DeclarationList | FieldDeclarationList | TranslationUnit => {}
// A `raw_string_literal` (`R"(…)"`) or a `string_literal` written
// across adjacent lines can span multiple rows; credit every
// spanned row to PLOC to match Python's #415 decision (#778).
RawStringLiteral | StringLiteral => {
add_multiline_string_ploc(node, ancestors, stats, start);
}
Comment => {
add_comment_lines::<Self>(node, code, ancestors, stats);
}
WhileStatement | SwitchStatement | CaseStatement | IfStatement | ForStatement
| ReturnStatement | BreakStatement | ContinueStatement | GotoStatement
| ThrowStatement | TryStatement | TryStatement2 | ExpressionStatement
| ExpressionStatement2 | LabeledStatement | StatementIdentifier => {
stats.lloc.count_logical_line();
}
Declaration => {
if node.count_specific_ancestors::<MozcppCode>(
ancestors,
|node| {
matches!(
node.kind_id().into(),
WhileStatement | ForStatement | IfStatement
)
},
|node| node.kind_id() == CompoundStatement,
) == 0
{
stats.lloc.count_logical_line();
}
}
kind => {
check_comment_ends_on_code_line(stats, start);
stats.ploc.lines.insert(start);
// As reported here: https://github.com/tree-sitter/tree-sitter-cpp/issues/276
// `tree-sitter-cpp` doesn't expand macros, providing a single
// `PreprocArg` node for the entire macro argument, so every row
// that node spans is PLOC rather than blank.
//
// Bounded by `add_string_interior_ploc`, and therefore by
// `Node::end_line` rather than the raw end row: a body whose
// last continuation is a dangling backslash ends at column 0 of
// the row below, which the node does not occupy (#1423).
if let PreprocArg = kind {
add_string_interior_ploc(node, stats, start);
}
}
}
}
}