feat(lsp): implement self-hosted LSP module (Phase 5)#132
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Implements Phase 5 of the self-hosting roadmap: LSP server in Gradient. **New File: compiler/lsp.gr** Core Types: - LspServer: LSP server instance with document store - TextDocumentItem, VersionedTextDocumentIdentifier: document management - LspPosition, LspRange: positions and ranges in documents - LspDiagnostic: diagnostic messages with severity - Hover: hover information content - CompletionItem, CompletionItemKind: completion support - ServerCapabilities, ServerInfo: server metadata - InitializeParams, InitializeResult: initialization protocol - DocumentSymbol, LspSymbolKind: document symbols Enums: - LspDiagnosticSeverity: Error/Warning/Info/Hint - CompletionItemKind: Text/Method/Function/Constructor/etc. - LspSymbolKind: renamed to avoid conflict with query.gr's SymbolKind Core Functions: - new_lsp_server: create LSP server instance - initialize: LSP initialization handshake - did_open/did_change/did_close/did_save: document lifecycle - hover: hover information at position - completion: completion items at position - document_symbol: extract document symbols - goto_definition: go-to-definition navigation - run_diagnostics: compile and collect diagnostics - new_document_store, store_document, get_document: document management - word_at_position: extract identifier at position - get_builtin_functions, get_keywords: built-in knowledge - is_builtin, is_keyword: identifier classification **Self-Hosting Tests (All 12 Passing):** - all_modules_plus_lsp_concatenated_parses_and_typechecks_clean ✅ - lsp_gr_concatenated_exposes_expected_symbols ✅ Part of #116 (Self-Hosting Epic) Closes #124 (Phase 5: LSP)
graydeon
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Apr 11, 2026
Implements Phase 5 of the self-hosting roadmap: LSP server in Gradient. **New File: compiler/lsp.gr** Core Types: - LspServer: LSP server instance with document store - TextDocumentItem, VersionedTextDocumentIdentifier: document management - LspPosition, LspRange: positions and ranges in documents - LspDiagnostic: diagnostic messages with severity - Hover: hover information content - CompletionItem, CompletionItemKind: completion support - ServerCapabilities, ServerInfo: server metadata - InitializeParams, InitializeResult: initialization protocol - DocumentSymbol, LspSymbolKind: document symbols Enums: - LspDiagnosticSeverity: Error/Warning/Info/Hint - CompletionItemKind: Text/Method/Function/Constructor/etc. - LspSymbolKind: renamed to avoid conflict with query.gr's SymbolKind Core Functions: - new_lsp_server: create LSP server instance - initialize: LSP initialization handshake - did_open/did_change/did_close/did_save: document lifecycle - hover: hover information at position - completion: completion items at position - document_symbol: extract document symbols - goto_definition: go-to-definition navigation - run_diagnostics: compile and collect diagnostics - new_document_store, store_document, get_document: document management - word_at_position: extract identifier at position - get_builtin_functions, get_keywords: built-in knowledge - is_builtin, is_keyword: identifier classification **Self-Hosting Tests (All 12 Passing):** - all_modules_plus_lsp_concatenated_parses_and_typechecks_clean ✅ - lsp_gr_concatenated_exposes_expected_symbols ✅ Part of #116 (Self-Hosting Epic) Closes #124 (Phase 5: LSP)
graydeon
added a commit
that referenced
this pull request
Apr 11, 2026
Implements Phase 5 of the self-hosting roadmap: LSP server in Gradient. **New File: compiler/lsp.gr** Core Types: - LspServer: LSP server instance with document store - TextDocumentItem, VersionedTextDocumentIdentifier: document management - LspPosition, LspRange: positions and ranges in documents - LspDiagnostic: diagnostic messages with severity - Hover: hover information content - CompletionItem, CompletionItemKind: completion support - ServerCapabilities, ServerInfo: server metadata - InitializeParams, InitializeResult: initialization protocol - DocumentSymbol, LspSymbolKind: document symbols Enums: - LspDiagnosticSeverity: Error/Warning/Info/Hint - CompletionItemKind: Text/Method/Function/Constructor/etc. - LspSymbolKind: renamed to avoid conflict with query.gr's SymbolKind Core Functions: - new_lsp_server: create LSP server instance - initialize: LSP initialization handshake - did_open/did_change/did_close/did_save: document lifecycle - hover: hover information at position - completion: completion items at position - document_symbol: extract document symbols - goto_definition: go-to-definition navigation - run_diagnostics: compile and collect diagnostics - new_document_store, store_document, get_document: document management - word_at_position: extract identifier at position - get_builtin_functions, get_keywords: built-in knowledge - is_builtin, is_keyword: identifier classification **Self-Hosting Tests (All 12 Passing):** - all_modules_plus_lsp_concatenated_parses_and_typechecks_clean ✅ - lsp_gr_concatenated_exposes_expected_symbols ✅ Part of #116 (Self-Hosting Epic) Closes #124 (Phase 5: LSP)
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Summary
Implements Phase 5 of the self-hosting roadmap: LSP server in Gradient.
New File: compiler/lsp.gr
Core Types
Enums
Core Functions
Naming Changes
Self-Hosting Tests (All 12 Passing)
Related Issues