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-rw-r--r--support/texlab/src/capabilities.rs46
1 files changed, 46 insertions, 0 deletions
diff --git a/support/texlab/src/capabilities.rs b/support/texlab/src/capabilities.rs
new file mode 100644
index 0000000000..92acd2fbee
--- /dev/null
+++ b/support/texlab/src/capabilities.rs
@@ -0,0 +1,46 @@
+use lsp_types::{ClientCapabilities, MarkupKind};
+
+pub trait ClientCapabilitiesExt {
+ fn has_definition_link_support(&self) -> bool;
+
+ fn has_hierarchical_document_symbol_support(&self) -> bool;
+
+ fn has_work_done_progress(&self) -> bool;
+
+ fn has_hover_markdown_support(&self) -> bool;
+}
+
+impl ClientCapabilitiesExt for ClientCapabilities {
+ fn has_definition_link_support(&self) -> bool {
+ self.text_document
+ .as_ref()
+ .and_then(|cap| cap.definition.as_ref())
+ .and_then(|cap| cap.link_support)
+ == Some(true)
+ }
+
+ fn has_hierarchical_document_symbol_support(&self) -> bool {
+ self.text_document
+ .as_ref()
+ .and_then(|cap| cap.document_symbol.as_ref())
+ .and_then(|cap| cap.hierarchical_document_symbol_support)
+ == Some(true)
+ }
+
+ fn has_work_done_progress(&self) -> bool {
+ self.window.as_ref().and_then(|cap| cap.work_done_progress) == Some(true)
+ }
+
+ fn has_hover_markdown_support(&self) -> bool {
+ if let Some(formats) = self
+ .text_document
+ .as_ref()
+ .and_then(|cap| cap.hover.as_ref())
+ .and_then(|cap| cap.content_format.as_ref())
+ {
+ formats.contains(&MarkupKind::Markdown)
+ } else {
+ false
+ }
+ }
+}