flx_lsp 0.3.0 
flx_lsp: ^0.3.0 copied to clipboard
Language server for .flx — diagnostics, completion, hover, go-to-definition and document symbols, speaking LSP over stdio.
flx_lsp #
Language server for flx. Speaks LSP over stdio; editors launch it, you generally should not.
dart pub global activate flx_lsp
For VS Code, install the extension from
tools/vscode-flx
rather than wiring this up by hand.
Features #
| Syntax diagnostics | Per keystroke — same message, position and hint as the build |
| Type errors | On save, mapped back onto the .flx that produced them |
| Completion | Hooks, widgets, arguments, enum shorthands, Icons, local bindings, composables |
| Hover | Signatures and docs; the route for a @page; the expression behind a binding |
| Go to definition | Composables across files, bindings, parameters — including from inside ${…} |
| … and into Dart | Hooks, widgets, your own classes: useState lands in flx_runtime, Text in Flutter |
| Outline & workspace symbols | Composables with their bindings nested |
The design constraint #
The parser is fatally strict, and a file you are typing into does not parse —
Column { ⟨cursor⟩ } has an empty block, which is a syntax error. So
completion reads the token stream, never the AST, and falls back to a
truncated tokenization when even the lexer fails on a half-typed string.
Navigation and the outline use the last successful parse rather than
emptying themselves on every keystroke.
Options #
initializationOptions.semanticDiagnostics: false turns off the Dart analyzer
pass. It is on by default, and it writes files: type-checking requires
transpiling the folder on save, so generated .dart appears as a side effect.
License #
BSD-3-Clause.
Metadata
Documentation
Publisher
unverified uploader
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Metadata
Language server for .flx — diagnostics, completion, hover, go-to-definition and document symbols, speaking LSP over stdio.
Repository (GitHub)
View/report issues
Topics
#flutter #dsl #lsp #language-server
License
BSD-3-Clause (license)