ParseReason Enumeration

Provides reasons for a parsing operation in a language service.

Namespace:  Microsoft.VisualStudio.Package
Assembly:  Microsoft.VisualStudio.Package.LanguageService.9.0 (in Microsoft.VisualStudio.Package.LanguageService.9.0.dll)


Public Enumeration ParseReason
Dim instance As ParseReason
public enum ParseReason
public enum class ParseReason
public enum ParseReason


Member name Description
None A placeholder value indicating that no parsing should be done.
MemberSelect Parse the separator character before the current location to obtain a list of members for the class.
HighlightBraces Parse to find the matching language pairs (such as "{" and "}" or "<" and ">") that enclose the given location so they and their contents can be highlighted.
MemberSelectAndHighlightBraces Parse the character at the current location to complete a member selection and to highlight the matching pair to the parsed character (such as a ")" after a method name).
MatchBraces Parse the language pair at the given location to finds its match.
Check Parse the entire source file, checking for errors. This pass should also create lists of matching language pairs, triplets, members, and methods.
CompleteWord Parse to get the partially completed word before the current position in order to show a list of possible completions (members, arguments, methods).
DisplayMemberList Parse the separator and the possible name before it, to obtain a list of members to be shown in a member completion list.
QuickInfo Parse the identifier or selection at the given location to obtain type information to be shown in an IntelliSense quick info tool tip.
MethodTip Parse the method name before the current position to produce a list of all overloaded method signatures that match the method name.
Autos Parse the code block at the given location to obtain any expressions that might be of interest in the Autos debugging window (an expression is the name of variable or parameter that can be evaluated to produce a value).
CodeSpan Parse the section of code containing the specified location to find the extent of the statement. Used in validating breakpoints.
Goto Parse the identifier or expression at the specified location to obtain a possible URI of a file where the identifier is defined, declared, or referenced.


These are all the reasons a parsing operation is performed in a language service. Most reasons confine parsing to the current line and therefore are very fast, some reasons call for a more extensive parsing that can take a while and are therefore typically done on a background thread.

See Also


Microsoft.VisualStudio.Package Namespace