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Merge pull request #585 from InKryption/master

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Improve unused variable report accuracy
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Auguste Rame 2022-08-20 05:23:57 +02:00 committed by GitHub
commit 07ae21a25c
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1 changed files with 22 additions and 3 deletions
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25
src/Server.zig
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@ -250,7 +250,7 @@ fn publishDiagnostics(server: *Server, writer: anytype, handle: DocumentStore.Ha
while (decl_iterator.next()) |decl| {
var identifier_count: usize = 0;
var name_token_index = switch (decl.value_ptr.*) {
const name_token_index = switch (decl.value_ptr.*) {
.ast_node => |an| s: {
const an_tag = tree.nodes.items(.tag)[an];
switch (an_tag) {
@ -270,8 +270,27 @@ fn publishDiagnostics(server: *Server, writer: anytype, handle: DocumentStore.Ha
const pit_start = tree.firstToken(scope_data);
const pit_end = ast.lastToken(tree, scope_data);
for (tree.tokens.items(.tag)[pit_start..pit_end]) |tag, index| {
if (tag == .identifier and std.mem.eql(u8, tree.tokenSlice(pit_start + @intCast(u32, index)), tree.tokenSlice(name_token_index))) identifier_count += 1;
const tags = tree.tokens.items(.tag)[pit_start..pit_end];
for (tags) |tag, index| {
if (tag != .identifier) continue;
if (!std.mem.eql(u8, tree.tokenSlice(pit_start + @intCast(u32, index)), tree.tokenSlice(name_token_index))) continue;
if (index -| 1 > 0 and tags[index - 1] == .period) continue;
if (index +| 2 < tags.len and tags[index + 1] == .colon) switch (tags[index + 2]) {
.l_brace,
.keyword_inline,
.keyword_while,
.keyword_for,
.keyword_switch,
=> continue,
else => {},
};
if (index -| 2 > 0 and tags[index - 1] == .colon) switch (tags[index - 2]) {
.keyword_break,
.keyword_continue,
=> continue,
else => {},
};
identifier_count += 1;
}
if (identifier_count <= 1)