diff --git a/internal/lsp/cmd/cmd.go b/internal/lsp/cmd/cmd.go
index 7225ae8..5f669f3 100644
--- a/internal/lsp/cmd/cmd.go
+++ b/internal/lsp/cmd/cmd.go
@@ -281,10 +281,10 @@
 		ContentFormat: []protocol.MarkupKind{opts.PreferredContentFormat},
 	}
 	params.Capabilities.TextDocument.DocumentSymbol.HierarchicalDocumentSymbolSupport = opts.HierarchicalDocumentSymbolSupport
-	params.Capabilities.TextDocument.SemanticTokens = &protocol.SemanticTokensClientCapabilities{}
+	params.Capabilities.TextDocument.SemanticTokens = protocol.SemanticTokensClientCapabilities{}
 	params.Capabilities.TextDocument.SemanticTokens.Formats = []string{"relative"}
 	params.Capabilities.TextDocument.SemanticTokens.Requests.Range = true
-	params.Capabilities.TextDocument.SemanticTokens.Requests.Full.Delta = true
+	params.Capabilities.TextDocument.SemanticTokens.Requests.Full = true
 	params.Capabilities.TextDocument.SemanticTokens.TokenTypes = lsp.SemanticTypes()
 	params.Capabilities.TextDocument.SemanticTokens.TokenModifiers = lsp.SemanticModifiers()
 	params.InitializationOptions = map[string]interface{}{
diff --git a/internal/lsp/helper/helper.go b/internal/lsp/helper/helper.go
index 06b2457..4d1dc41 100644
--- a/internal/lsp/helper/helper.go
+++ b/internal/lsp/helper/helper.go
@@ -72,7 +72,11 @@
 				cm = ", "
 			}
 			t.Param += fmt.Sprintf("%s%s %s", cm, t.paramnames[i], p)
-			t.Invoke += fmt.Sprintf("%s%s", cm, t.paramnames[i])
+			this := t.paramnames[i]
+			if this == "_" {
+				this = "nil"
+			}
+			t.Invoke += fmt.Sprintf("%s%s", cm, this)
 		}
 		if len(t.Results) > 1 {
 			t.Result = "("
diff --git a/internal/lsp/protocol/tsclient.go b/internal/lsp/protocol/tsclient.go
index d30594b..0670e11 100644
--- a/internal/lsp/protocol/tsclient.go
+++ b/internal/lsp/protocol/tsclient.go
@@ -2,8 +2,8 @@
 
 // Package protocol contains data types and code for LSP jsonrpcs
 // generated automatically from vscode-languageserver-node
-// commit: 60a5a7825e6f54f57917091f394fd8db7d1724bc
-// last fetched Thu Sep 10 2020 09:21:57 GMT-0400 (Eastern Daylight Time)
+// commit: 901fd40345060d159f07d234bbc967966a929a34
+// last fetched Mon Oct 26 2020 09:10:42 GMT-0400 (Eastern Daylight Time)
 
 // Code generated (see typescript/README.md) DO NOT EDIT.
 
diff --git a/internal/lsp/protocol/tsprotocol.go b/internal/lsp/protocol/tsprotocol.go
index c3532b5..06ee908 100644
--- a/internal/lsp/protocol/tsprotocol.go
+++ b/internal/lsp/protocol/tsprotocol.go
@@ -1,7 +1,7 @@
 // Package protocol contains data types and code for LSP jsonrpcs
 // generated automatically from vscode-languageserver-node
-// commit: 60a5a7825e6f54f57917091f394fd8db7d1724bc
-// last fetched Thu Sep 10 2020 09:21:57 GMT-0400 (Eastern Daylight Time)
+// commit: 901fd40345060d159f07d234bbc967966a929a34
+// last fetched Mon Oct 26 2020 09:10:42 GMT-0400 (Eastern Daylight Time)
 package protocol
 
 // Code generated (see typescript/README.md) DO NOT EDIT.
@@ -122,6 +122,11 @@
 	 * Must be contained by the [`range`](#CallHierarchyItem.range).
 	 */
 	SelectionRange Range `json:"selectionRange"`
+	/**
+	 * A data entry field that is preserved between a call hierarchy prepare and
+	 * incoming calls or outgoing calls requests.
+	 */
+	Data interface{} `json:"data,omitempty"`
 }
 
 /**
@@ -219,8 +224,8 @@
 		 */
 		Window interface{} `json:"window,omitempty"`
 		/**
-		 * Whether client supports handling progress notifications. If set servers are allowed to
-		 * report in `workDoneProgress` property in the request specific server capabilities.
+		 * Whether client supports server initiated progress using the
+		 * `window/workDoneProgress/create` request.
 		 *
 		 * Since 3.15.0
 		 */
@@ -264,6 +269,31 @@
 	 */
 	IsPreferred bool `json:"isPreferred,omitempty"`
 	/**
+	 * Marks that the code action cannot currently be applied.
+	 *
+	 * Clients should follow the following guidelines regarding disabled code actions:
+	 *
+	 *   - Disabled code actions are not shown in automatic [lightbulb](https://code.visualstudio.com/docs/editor/editingevolved#_code-action)
+	 *     code action menu.
+	 *
+	 *   - Disabled actions are shown as faded out in the code action menu when the user request a more specific type
+	 *     of code action, such as refactorings.
+	 *
+	 *   - If the user has a [keybinding](https://code.visualstudio.com/docs/editor/refactoring#_keybindings-for-code-actions)
+	 *     that auto applies a code action and only a disabled code actions are returned, the client should show the user an
+	 *     error message with `reason` in the editor.
+	 *
+	 * @since 3.16.0
+	 */
+	Disabled struct {
+		/**
+		 * Human readable description of why the code action is currently disabled.
+		 *
+		 * This is displayed in the code actions UI.
+		 */
+		Reason string `json:"reason"`
+	} `json:"disabled,omitempty"`
+	/**
 	 * The workspace edit this code action performs.
 	 */
 	Edit WorkspaceEdit `json:"edit,omitempty"`
@@ -273,6 +303,13 @@
 	 * executed and then the command.
 	 */
 	Command *Command `json:"command,omitempty"`
+	/**
+	 * A data entry field that is preserved on a code action between
+	 * a `textDocument/codeAction` and a `codeAction/resolve` request.
+	 *
+	 * @since 3.16.0 - proposed state
+	 */
+	Data interface{} `json:"data,omitempty"`
 }
 
 /**
@@ -307,9 +344,36 @@
 	} `json:"codeActionLiteralSupport,omitempty"`
 	/**
 	 * Whether code action supports the `isPreferred` property.
+	 *
 	 * @since 3.15.0
 	 */
 	IsPreferredSupport bool `json:"isPreferredSupport,omitempty"`
+	/**
+	 * Whether code action supports the `disabled` property.
+	 *
+	 * @since 3.16.0 - proposed state
+	 */
+	DisabledSupport bool `json:"disabledSupport,omitempty"`
+	/**
+	 * Whether code action supports the `data` property which is
+	 * preserved between a `textDocument/codeAction` and a
+	 * `codeAction/resolve` request.
+	 *
+	 * @since 3.16.0 - proposed state
+	 */
+	DataSupport bool `json:"dataSupport,omitempty"`
+	/**
+	 * Whether the client support resolving additional code action
+	 * properties via a separate `codeAction/resolve` request.
+	 *
+	 * @since 3.16.0 - proposed state
+	 */
+	ResolveSupport struct {
+		/**
+		 * The properties that a client can resolve lazily.
+		 */
+		Properties []string `json:"properties"`
+	} `json:"resolveSupport,omitempty"`
 }
 
 /**
@@ -350,6 +414,13 @@
 	 * may list out every specific kind they provide.
 	 */
 	CodeActionKinds []CodeActionKind `json:"codeActionKinds,omitempty"`
+	/**
+	 * The server provides support to resolve additional
+	 * information for a code action.
+	 *
+	 * @since 3.16.0
+	 */
+	ResolveProvider bool `json:"resolveProvider,omitempty"`
 	WorkDoneProgressOptions
 }
 
@@ -374,6 +445,18 @@
 }
 
 /**
+ * Structure to capture a description for an error code.
+ *
+ * @since 3.16.0 - proposed state
+ */
+type CodeDescription struct {
+	/**
+	 * An URI to open with more information about the diagnostic error.
+	 */
+	Href URI `json:"href"`
+}
+
+/**
  * A code lens represents a [command](#Command) that should be shown along with
  * source text, like the number of references, a way to run tests, etc.
  *
@@ -585,16 +668,22 @@
 		 * Client support insert replace edit to control different behavior if a
 		 * completion item is inserted in the text or should replace text.
 		 *
-		 * @since 3.16.0 - Proposed state
+		 * @since 3.16.0 - proposed state
 		 */
 		InsertReplaceSupport bool `json:"insertReplaceSupport,omitempty"`
 		/**
-		 * Client supports to resolve `additionalTextEdits` in the `completionItem/resolve`
-		 * request. So servers can postpone computing them.
+		 * Indicates which properties a client can resolve lazily on a completion
+		 * item. Before version 3.16.0 only the predefined properties `documentation`
+		 * and `details` could be resolved lazily.
 		 *
-		 * @since 3.16.0 - Proposed state
+		 * @since 3.16.0 - proposed state
 		 */
-		ResolveAdditionalTextEditsSupport bool `json:"resolveAdditionalTextEditsSupport,omitempty"`
+		ResolveSupport struct {
+			/**
+			 * The properties that a client can resolve lazily.
+			 */
+			Properties []string `json:"properties"`
+		} `json:"resolveSupport,omitempty"`
 	} `json:"completionItem,omitempty"`
 	CompletionItemKind struct {
 		/**
@@ -722,7 +811,7 @@
 	 * *Note 2:* If an `InsertReplaceEdit` is returned the edit's insert range must be a prefix of
 	 * the edit's replace range, that means it must be contained and starting at the same position.
 	 *
-	 * @since 3.16.0 additional type `InsertReplaceEdit` - Proposed state
+	 * @since 3.16.0 additional type `InsertReplaceEdit` - proposed state
 	 */
 	TextEdit *TextEdit/*TextEdit | InsertReplaceEdit*/ `json:"textEdit,omitempty"`
 	/**
@@ -1041,10 +1130,14 @@
 	Severity DiagnosticSeverity `json:"severity,omitempty"`
 	/**
 	 * The diagnostic's code, which usually appear in the user interface.
-	 *
-	 * @since 3.16.0 Support for `DiagnosticCode` - Proposed state
 	 */
-	Code interface{}/* float64 | string | DiagnosticCode*/ `json:"code,omitempty"`
+	Code interface{}/*number | string*/ `json:"code,omitempty"`
+	/**
+	 * An optional property to describe the error code.
+	 *
+	 * @since 3.16.0 - proposed state
+	 */
+	CodeDescription CodeDescription `json:"codeDescription,omitempty"`
 	/**
 	 * A human-readable string describing the source of this
 	 * diagnostic, e.g. 'typescript' or 'super lint'. It usually
@@ -1066,22 +1159,13 @@
 	 * a scope collide all definitions can be marked via this property.
 	 */
 	RelatedInformation []DiagnosticRelatedInformation `json:"relatedInformation,omitempty"`
-}
-
-/**
- * Structure to capture more complex diagnostic codes.
- *
- * @since 3.16.0 - Proposed state
- */
-type DiagnosticCode struct {
 	/**
-	 * The actual code
+	 * A data entry field that is preserved between a `textDocument/publishDiagnostics`
+	 * notification and `textDocument/codeAction` request.
+	 *
+	 * @since 3.16.0 - proposed state
 	 */
-	Value string/*string | number*/ `json:"value"`
-	/**
-	 * A target URI to open with more information about the diagnostic error.
-	 */
-	Target URI `json:"target"`
+	Data interface{} `json:"data,omitempty"`
 }
 
 /**
@@ -1545,7 +1629,7 @@
 	/**
 	 * Tags for this completion item.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	Tags []SymbolTag `json:"tags,omitempty"`
 	/**
@@ -1556,13 +1640,13 @@
 	Deprecated bool `json:"deprecated,omitempty"`
 	/**
 	 * The range enclosing this symbol not including leading/trailing whitespace but everything else
-	 * like comments. This information is typically used to determine if the clients cursor is
+	 * like comments. This information is typically used to determine if the the clients cursor is
 	 * inside the symbol to reveal in the symbol in the UI.
 	 */
 	Range Range `json:"range"`
 	/**
 	 * The range that should be selected and revealed when this symbol is being picked, e.g the name of a function.
-	 * Must be contained by the `range`.
+	 * Must be contained by the the `range`.
 	 */
 	SelectionRange Range `json:"selectionRange"`
 	/**
@@ -1604,7 +1688,7 @@
 	 * `DocumentSymbol` if `hierarchicalDocumentSymbolSupport` is set to true.
 	 * Clients supporting tags have to handle unknown tags gracefully.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	TagSupport struct {
 		/**
@@ -1612,12 +1696,26 @@
 		 */
 		ValueSet []SymbolTag `json:"valueSet"`
 	} `json:"tagSupport,omitempty"`
+	/**
+	 * The client supports an additional label presented in the UI when
+	 * registering a document symbol provider.
+	 *
+	 * @since 3.16.0
+	 */
+	LabelSupport bool `json:"labelSupport,omitempty"`
 }
 
 /**
  * Provider options for a [DocumentSymbolRequest](#DocumentSymbolRequest).
  */
 type DocumentSymbolOptions struct {
+	/**
+	 * A human-readable string that is shown when multiple outlines trees
+	 * are shown for the same document.
+	 *
+	 * @since 3.16.0 - proposed state
+	 */
+	Label string `json:"label,omitempty"`
 	WorkDoneProgressOptions
 }
 
@@ -2114,13 +2212,13 @@
 	/**
 	 * The server provides Call Hierarchy support.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	CallHierarchyProvider interface{}/* bool | CallHierarchyOptions | CallHierarchyRegistrationOptions*/ `json:"callHierarchyProvider,omitempty"`
 	/**
 	 * The server provides semantic tokens support.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	SemanticTokensProvider interface{}/*SemanticTokensOptions | SemanticTokensRegistrationOptions*/ `json:"semanticTokensProvider,omitempty"`
 	/**
@@ -2132,7 +2230,7 @@
 /**
  * A special text edit to provide an insert and a replace operation.
  *
- * @since 3.16.0 - Proposed state
+ * @since 3.16.0 - proposed state
  */
 type InsertReplaceEdit struct {
 	/**
@@ -2188,7 +2286,7 @@
 	TargetRange Range `json:"targetRange"`
 	/**
 	 * The range that should be selected and revealed when this link is being followed, e.g the name of a function.
-	 * Must be contained by the `targetRange`. See also `DocumentSymbol#range`
+	 * Must be contained by the the `targetRange`. See also `DocumentSymbol#range`
 	 */
 	TargetSelectionRange Range `json:"targetSelectionRange"`
 }
@@ -2285,6 +2383,44 @@
 type MessageType float64
 
 /**
+ * Moniker definition to match LSIF 0.5 moniker definition.
+ *
+ * @since 3.16.0
+ */
+type Moniker struct {
+	/**
+	 * The scheme of the moniker. For example tsc or .Net
+	 */
+	Scheme string `json:"scheme"`
+	/**
+	 * The identifier of the moniker. The value is opaque in LSIF however
+	 * schema owners are allowed to define the structure if they want.
+	 */
+	Identifier string `json:"identifier"`
+	/**
+	 * The scope in which the moniker is unique
+	 */
+	Unique UniquenessLevel `json:"unique"`
+	/**
+	 * The moniker kind if known.
+	 */
+	Kind MonikerKind `json:"kind,omitempty"`
+}
+
+/**
+ * The moniker kind.
+ *
+ * @since 3.16.0
+ */
+type MonikerKind string
+
+type MonikerParams struct {
+	TextDocumentPositionParams
+	WorkDoneProgressParams
+	PartialResultParams
+}
+
+/**
  * Represents a parameter of a callable-signature. A parameter can
  * have a label and a doc-comment.
  */
@@ -2390,11 +2526,19 @@
 	 */
 	VersionSupport bool `json:"versionSupport,omitempty"`
 	/**
-	 * Clients support complex diagnostic codes (e.g. code and target URI).
+	 * Client supports a codeDescription property
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
-	ComplexDiagnosticCodeSupport bool `json:"complexDiagnosticCodeSupport,omitempty"`
+	CodeDescriptionSupport bool `json:"codeDescriptionSupport,omitempty"`
+	/**
+	 * Whether code action supports the `data` property which is
+	 * preserved between a `textDocument/publishDiagnostics` and
+	 * `textDocument/codeAction` request.
+	 *
+	 * @since 3.16.0 - proposed state
+	 */
+	DataSupport bool `json:"dataSupport,omitempty"`
 }
 
 /**
@@ -2679,6 +2823,45 @@
 /**
  * @since 3.16.0 - Proposed state
  */
+type SemanticTokensClientCapabilities struct {
+	/**
+	 * Whether implementation supports dynamic registration. If this is set to `true`
+	 * the client supports the new `(TextDocumentRegistrationOptions & StaticRegistrationOptions)`
+	 * return value for the corresponding server capability as well.
+	 */
+	DynamicRegistration bool `json:"dynamicRegistration,omitempty"`
+	/**
+	 * Which requests the client supports and might send to the server
+	 */
+	Requests struct {
+		/**
+		 * The client will send the `textDocument/semanticTokens/range` request if
+		 * the server provides a corresponding handler.
+		 */
+		Range bool/*boolean | {		}*/ `json:"range,omitempty"`
+		/**
+		 * The client will send the `textDocument/semanticTokens/full` request if
+		 * the server provides a corresponding handler.
+		 */
+		Full interface{}/*boolean | <elided struct>*/ `json:"full,omitempty"`
+	} `json:"requests"`
+	/**
+	 * The token types that the client supports.
+	 */
+	TokenTypes []string `json:"tokenTypes"`
+	/**
+	 * The token modifiers that the client supports.
+	 */
+	TokenModifiers []string `json:"tokenModifiers"`
+	/**
+	 * The formats the clients supports.
+	 */
+	Formats []TokenFormat `json:"formats"`
+}
+
+/**
+ * @since 3.16.0 - Proposed state
+ */
 type SemanticTokensDelta struct {
 	ResultID string `json:"resultId,omitempty"`
 	/**
@@ -2752,7 +2935,7 @@
 	/**
 	 * Server supports providing semantic tokens for a full document.
 	 */
-	Full bool/*boolean | <elided struct>*/ `json:"full,omitempty"`
+	Full interface{}/*boolean | <elided struct>*/ `json:"full,omitempty"`
 	WorkDoneProgressOptions
 }
 
@@ -2793,6 +2976,16 @@
 	StaticRegistrationOptions
 }
 
+type SemanticTokensWorkspaceClientCapabilities struct {
+	/**
+	 * Whether the client implementation supports a refresh request send from the server
+	 * to the client. This is useful if a server detects a project wide configuration change
+	 * which requires a re-calculation of all semantic tokens provided by the server issuing
+	 * the request.
+	 */
+	RefreshSupport bool `json:"refreshSupport,omitempty"`
+}
+
 type ServerCapabilities = struct {
 	/**
 	 * Defines how text documents are synced. Is either a detailed structure defining each notification or
@@ -2894,13 +3087,13 @@
 	/**
 	 * The server provides Call Hierarchy support.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	CallHierarchyProvider interface{}/* bool | CallHierarchyOptions | CallHierarchyRegistrationOptions*/ `json:"callHierarchyProvider,omitempty"`
 	/**
 	 * The server provides semantic tokens support.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	SemanticTokensProvider interface{}/*SemanticTokensOptions | SemanticTokensRegistrationOptions*/ `json:"semanticTokensProvider,omitempty"`
 	/**
@@ -3149,7 +3342,7 @@
 	/**
 	 * Tags for this completion item.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	Tags []SymbolTag `json:"tags,omitempty"`
 	/**
@@ -3289,23 +3482,28 @@
 	 */
 	SelectionRange SelectionRangeClientCapabilities `json:"selectionRange,omitempty"`
 	/**
-	 * Capabilities specific to `textDocument/publishDiagnostics`.
+	 * Capabilities specific to `textDocument/publishDiagnostics` notification.
 	 */
 	PublishDiagnostics PublishDiagnosticsClientCapabilities `json:"publishDiagnostics,omitempty"`
 	/**
-	 * Capabilities specific to the `textDocument/callHierarchy`.
+	 * Capabilities specific to the various call hierarchy requests.
 	 *
 	 * @since 3.16.0
 	 */
 	CallHierarchy CallHierarchyClientCapabilities `json:"callHierarchy,omitempty"`
-
-	// missing in source, generated
-	SemanticTokens *SemanticTokensClientCapabilities `json:"semanticTokens,omitempty"`
+	/**
+	 * Capabilities specific to the various semantic token requsts.
+	 *
+	 * @since 3.16.0 - Proposed state
+	 */
+	SemanticTokens SemanticTokensClientCapabilities `json:"semanticTokens,omitempty"`
 }
 
 /**
  * An event describing a change to a text document. If range and rangeLength are omitted
  * the new text is considered to be the full content of the document.
+ *
+ * @deprecated Use the text document from the new vscode-languageserver-textdocument package.
  */
 type TextDocumentContentChangeEvent = struct {
 	/**
@@ -3477,6 +3675,8 @@
 	NewText string `json:"newText"`
 }
 
+type TokenFormat = string
+
 type TraceValues = string /*'off' | 'messages' | 'verbose'*/
 
 /**
@@ -3516,11 +3716,18 @@
 /**
  * A tagging type for string properties that are actually URIs
  *
- * @since 3.16.0 - Proposed state
+ * @since 3.16.0 - proposed state
  */
 type URI = string
 
 /**
+ * Moniker uniqueness level to define scope of the moniker.
+ *
+ * @since 3.16.0
+ */
+type UniquenessLevel string
+
+/**
  * General parameters to unregister a request or notification.
  */
 type Unregistration struct {
@@ -3617,8 +3824,8 @@
 	 */
 	Window struct {
 		/**
-		 * Whether client supports handling progress notifications. If set servers are allowed to
-		 * report in `workDoneProgress` property in the request specific server capabilities.
+		 * Whether client supports server initiated progress using the
+		 * `window/workDoneProgress/create` request.
 		 *
 		 * Since 3.15.0
 		 */
@@ -3711,6 +3918,13 @@
 	 * Capabilities specific to the `workspace/executeCommand` request.
 	 */
 	ExecuteCommand ExecuteCommandClientCapabilities `json:"executeCommand,omitempty"`
+	/**
+	 * Capabilities specific to the semantic token requsts scoped to the
+	 * workspace.
+	 *
+	 * @since 3.16.0 - proposed state.
+	 */
+	SemanticTokens SemanticTokensWorkspaceClientCapabilities `json:"semanticTokens,omitempty"`
 }
 
 /**
@@ -3834,7 +4048,7 @@
 	 * The client supports tags on `SymbolInformation`.
 	 * Clients supporting tags have to handle unknown tags gracefully.
 	 *
-	 * @since 3.16.0 - Proposed state
+	 * @since 3.16.0 - proposed state
 	 */
 	TagSupport struct {
 		/**
@@ -3864,20 +4078,6 @@
 	PartialResultParams
 }
 
-// generated
-type SemanticTokensClientCapabilities struct {
-	TokenModifiers []string
-	Formats        []string
-	Requests       struct {
-		Range bool
-		Full  struct {
-			Delta bool
-		}
-	}
-	DynamicRegistration bool
-	TokenTypes          []string
-}
-
 const (
 	/**
 	 * Empty kind.
@@ -4159,6 +4359,19 @@
 
 	Log MessageType = 4
 	/**
+	 * The moniker represent a symbol that is imported into a project
+	 */
+	Import MonikerKind = "import"
+	/**
+	 * The moniker represents a symbol that is exported from a project
+	 */
+	Export MonikerKind = "export"
+	/**
+	 * The moniker represents a symbol that is local to a project (e.g. a local
+	 * variable of a function, a class not visible outside the project, ...)
+	 */
+	Local MonikerKind = "local"
+	/**
 	 * Supports creating new files and folders.
 	 */
 
@@ -4254,6 +4467,26 @@
 
 	Incremental TextDocumentSyncKind = 2
 	/**
+	 * The moniker is only unique inside a document
+	 */
+	Document UniquenessLevel = "document"
+	/**
+	 * The moniker is unique inside a project for which a dump got created
+	 */
+	Project UniquenessLevel = "project"
+	/**
+	 * The moniker is unique inside the group to which a project belongs
+	 */
+	Group UniquenessLevel = "group"
+	/**
+	 * The moniker is unique inside the moniker scheme.
+	 */
+	Scheme UniquenessLevel = "scheme"
+	/**
+	 * The moniker is globally unique
+	 */
+	Global UniquenessLevel = "global"
+	/**
 	 * Interested in create events.
 	 */
 
diff --git a/internal/lsp/protocol/tsserver.go b/internal/lsp/protocol/tsserver.go
index d1dada3..c6db497 100644
--- a/internal/lsp/protocol/tsserver.go
+++ b/internal/lsp/protocol/tsserver.go
@@ -2,8 +2,8 @@
 
 // Package protocol contains data types and code for LSP jsonrpcs
 // generated automatically from vscode-languageserver-node
-// commit: 60a5a7825e6f54f57917091f394fd8db7d1724bc
-// last fetched Thu Sep 10 2020 09:21:57 GMT-0400 (Eastern Daylight Time)
+// commit: 901fd40345060d159f07d234bbc967966a929a34
+// last fetched Mon Oct 26 2020 09:10:42 GMT-0400 (Eastern Daylight Time)
 
 // Code generated (see typescript/README.md) DO NOT EDIT.
 
@@ -18,7 +18,6 @@
 type Server interface {
 	DidChangeWorkspaceFolders(context.Context, *DidChangeWorkspaceFoldersParams) error
 	WorkDoneProgressCancel(context.Context, *WorkDoneProgressCancelParams) error
-	SemanticTokensRefresh(context.Context) error
 	Initialized(context.Context, *InitializedParams) error
 	Exit(context.Context) error
 	DidChangeConfiguration(context.Context, *DidChangeConfigurationParams) error
@@ -43,6 +42,7 @@
 	SemanticTokensFull(context.Context, *SemanticTokensParams) (*SemanticTokens /*SemanticTokens | null*/, error)
 	SemanticTokensFullDelta(context.Context, *SemanticTokensDeltaParams) (interface{} /* SemanticTokens | SemanticTokensDelta | nil*/, error)
 	SemanticTokensRange(context.Context, *SemanticTokensRangeParams) (*SemanticTokens /*SemanticTokens | null*/, error)
+	SemanticTokensRefresh(context.Context) error
 	Initialize(context.Context, *ParamInitialize) (*InitializeResult, error)
 	Shutdown(context.Context) error
 	WillSaveWaitUntil(context.Context, *WillSaveTextDocumentParams) ([]TextEdit /*TextEdit[] | null*/, error)
@@ -55,6 +55,7 @@
 	DocumentHighlight(context.Context, *DocumentHighlightParams) ([]DocumentHighlight /*DocumentHighlight[] | null*/, error)
 	DocumentSymbol(context.Context, *DocumentSymbolParams) ([]interface{} /*SymbolInformation[] | DocumentSymbol[] | null*/, error)
 	CodeAction(context.Context, *CodeActionParams) ([]CodeAction /*(Command | CodeAction)[] | null*/, error)
+	ResolveCodeAction(context.Context, *CodeAction) (*CodeAction, error)
 	Symbol(context.Context, *WorkspaceSymbolParams) ([]SymbolInformation /*SymbolInformation[] | null*/, error)
 	CodeLens(context.Context, *CodeLensParams) ([]CodeLens /*CodeLens[] | null*/, error)
 	ResolveCodeLens(context.Context, *CodeLens) (*CodeLens, error)
@@ -66,6 +67,7 @@
 	Rename(context.Context, *RenameParams) (*WorkspaceEdit /*WorkspaceEdit | null*/, error)
 	PrepareRename(context.Context, *PrepareRenameParams) (*Range /*Range | { range: Range, placeholder: string } | { defaultBehavior: boolean } | null*/, error)
 	ExecuteCommand(context.Context, *ExecuteCommandParams) (interface{} /*any | null*/, error)
+	Moniker(context.Context, *MonikerParams) ([]Moniker /*Moniker[] | null*/, error)
 	NonstandardRequest(ctx context.Context, method string, params interface{}) (interface{}, error)
 }
 
@@ -85,9 +87,6 @@
 		}
 		err := server.WorkDoneProgressCancel(ctx, &params)
 		return true, reply(ctx, nil, err)
-	case "workspace/semanticTokens/refresh": // notif
-		err := server.SemanticTokensRefresh(ctx)
-		return true, reply(ctx, nil, err)
 	case "initialized": // notif
 		var params InitializedParams
 		if err := json.Unmarshal(r.Params(), &params); err != nil {
@@ -252,6 +251,12 @@
 		}
 		resp, err := server.SemanticTokensRange(ctx, &params)
 		return true, reply(ctx, resp, err)
+	case "workspace/semanticTokens/refresh": // req
+		if len(r.Params()) > 0 {
+			return true, reply(ctx, nil, errors.Errorf("%w: expected no params", jsonrpc2.ErrInvalidParams))
+		}
+		err := server.SemanticTokensRefresh(ctx)
+		return true, reply(ctx, nil, err)
 	case "initialize": // req
 		var params ParamInitialize
 		if err := json.Unmarshal(r.Params(), &params); err != nil {
@@ -335,6 +340,13 @@
 		}
 		resp, err := server.CodeAction(ctx, &params)
 		return true, reply(ctx, resp, err)
+	case "codeAction/resolve": // req
+		var params CodeAction
+		if err := json.Unmarshal(r.Params(), &params); err != nil {
+			return true, sendParseError(ctx, reply, err)
+		}
+		resp, err := server.ResolveCodeAction(ctx, &params)
+		return true, reply(ctx, resp, err)
 	case "workspace/symbol": // req
 		var params WorkspaceSymbolParams
 		if err := json.Unmarshal(r.Params(), &params); err != nil {
@@ -412,6 +424,13 @@
 		}
 		resp, err := server.ExecuteCommand(ctx, &params)
 		return true, reply(ctx, resp, err)
+	case "textDocument/moniker": // req
+		var params MonikerParams
+		if err := json.Unmarshal(r.Params(), &params); err != nil {
+			return true, sendParseError(ctx, reply, err)
+		}
+		resp, err := server.Moniker(ctx, &params)
+		return true, reply(ctx, resp, err)
 
 	default:
 		return false, nil
@@ -426,10 +445,6 @@
 	return s.Conn.Notify(ctx, "window/workDoneProgress/cancel", params)
 }
 
-func (s *serverDispatcher) SemanticTokensRefresh(ctx context.Context) error {
-	return s.Conn.Notify(ctx, "workspace/semanticTokens/refresh", nil)
-}
-
 func (s *serverDispatcher) Initialized(ctx context.Context, params *InitializedParams) error {
 	return s.Conn.Notify(ctx, "initialized", params)
 }
@@ -577,6 +592,10 @@
 	return result, nil
 }
 
+func (s *serverDispatcher) SemanticTokensRefresh(ctx context.Context) error {
+	return Call(ctx, s.Conn, "workspace/semanticTokens/refresh", nil, nil)
+}
+
 func (s *serverDispatcher) Initialize(ctx context.Context, params *ParamInitialize) (*InitializeResult, error) {
 	var result *InitializeResult
 	if err := Call(ctx, s.Conn, "initialize", params, &result); err != nil {
@@ -669,6 +688,14 @@
 	return result, nil
 }
 
+func (s *serverDispatcher) ResolveCodeAction(ctx context.Context, params *CodeAction) (*CodeAction, error) {
+	var result *CodeAction
+	if err := Call(ctx, s.Conn, "codeAction/resolve", params, &result); err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
 func (s *serverDispatcher) Symbol(ctx context.Context, params *WorkspaceSymbolParams) ([]SymbolInformation /*SymbolInformation[] | null*/, error) {
 	var result []SymbolInformation /*SymbolInformation[] | null*/
 	if err := Call(ctx, s.Conn, "workspace/symbol", params, &result); err != nil {
@@ -757,6 +784,14 @@
 	return result, nil
 }
 
+func (s *serverDispatcher) Moniker(ctx context.Context, params *MonikerParams) ([]Moniker /*Moniker[] | null*/, error) {
+	var result []Moniker /*Moniker[] | null*/
+	if err := Call(ctx, s.Conn, "textDocument/moniker", params, &result); err != nil {
+		return nil, err
+	}
+	return result, nil
+}
+
 func (s *serverDispatcher) NonstandardRequest(ctx context.Context, method string, params interface{}) (interface{}, error) {
 	var result interface{}
 	if err := Call(ctx, s.Conn, method, params, &result); err != nil {
diff --git a/internal/lsp/server_gen.go b/internal/lsp/server_gen.go
index 99fc6b0..258e922 100644
--- a/internal/lsp/server_gen.go
+++ b/internal/lsp/server_gen.go
@@ -36,8 +36,8 @@
 	return s.didChange(ctx, params)
 }
 
-func (s *Server) DidChangeConfiguration(ctx context.Context, changed *protocol.DidChangeConfigurationParams) error {
-	return s.didChangeConfiguration(ctx, changed)
+func (s *Server) DidChangeConfiguration(ctx context.Context, _ *protocol.DidChangeConfigurationParams) error {
+	return s.didChangeConfiguration(ctx, nil)
 }
 
 func (s *Server) DidChangeWatchedFiles(ctx context.Context, params *protocol.DidChangeWatchedFilesParams) error {
@@ -116,6 +116,10 @@
 	return notImplemented("LogTrace")
 }
 
+func (s *Server) Moniker(context.Context, *protocol.MonikerParams) ([]protocol.Moniker, error) {
+	return nil, notImplemented("Moniker")
+}
+
 func (s *Server) NonstandardRequest(ctx context.Context, method string, params interface{}) (interface{}, error) {
 	return s.nonstandardRequest(ctx, method, params)
 }
@@ -152,6 +156,10 @@
 	return nil, notImplemented("Resolve")
 }
 
+func (s *Server) ResolveCodeAction(context.Context, *protocol.CodeAction) (*protocol.CodeAction, error) {
+	return nil, notImplemented("ResolveCodeAction")
+}
+
 func (s *Server) ResolveCodeLens(context.Context, *protocol.CodeLens) (*protocol.CodeLens, error) {
 	return nil, notImplemented("ResolveCodeLens")
 }
diff --git a/internal/lsp/source/options.go b/internal/lsp/source/options.go
index d764a90..e8ebe33 100644
--- a/internal/lsp/source/options.go
+++ b/internal/lsp/source/options.go
@@ -538,12 +538,11 @@
 	// Check if the client supports hierarchical document symbols.
 	o.HierarchicalDocumentSymbolSupport = caps.TextDocument.DocumentSymbol.HierarchicalDocumentSymbolSupport
 	// Check if the client supports semantic tokens
-	if c := caps.TextDocument.SemanticTokens; c != nil {
-		o.SemanticTypes = c.TokenTypes
-		o.SemanticMods = c.TokenModifiers
-		// we don't need Requests, as we support full functionality
-		// we don't need Formats, as there is only one, for now
-	}
+	o.SemanticTypes = caps.TextDocument.SemanticTokens.TokenTypes
+	o.SemanticMods = caps.TextDocument.SemanticTokens.TokenModifiers
+	// we don't need Requests, as we support full functionality
+	// we don't need Formats, as there is only one, for now
+
 }
 
 func (o *Options) Clone() *Options {