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is it langium validation can show validation error by default?i only add empty validatior(below StatemachineValidator),but not implement it,when i launch vscode extension,langium parse error and lexer error message show in example1.st file |
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i am considering using vscode.language.createDiagnosticCollection API and vscode.languages.registerCodeActionsProvider to collect langium parse and lexer error info ,and show diagnosticInfo in the example1.st file,but langium seems to have implement it like below screenshot? |
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Langium sends diagnostics to the client using the LSP push diagnostics mechanism. By default, it will convert all parser and lexer errors into error diagnostics. In addition, you can use the semantic validation API, to perform custom validation based on your AST. The |
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Langium sends diagnostics to the client using the LSP push diagnostics mechanism. By default, it will convert all parser and lexer errors into error diagnostics. In addition, you can use the semantic validation API, to perform custom validation based on your AST.
The
vscode-languageclientpackage takes care of using the vscode API to display diagnostics received from the language server connection. No need to implement this yourself.