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server.ts
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import {connection} from "./connection"
import {DocumentStore, getOffsetFromPosition} from "./document-store"
import {createTactParser, initParser} from "./parser"
import {asLspRange, asNullableLspRange, asParserPoint} from "@server/utils/position"
import {TypeInferer} from "./TypeInferer"
import {LocalSearchScope, Referent} from "@server/psi/Referent"
import {index, IndexKey} from "./indexes"
import {AsmInstr, CallLike, Expression, NamedNode, Node} from "@server/psi/Node"
import {Reference, ResolveState, ScopeProcessor} from "@server/psi/Reference"
import {File} from "@server/psi/File"
import {CompletionContext} from "./completion/CompletionContext"
import * as lsp from "vscode-languageserver"
import {
DidChangeWatchedFilesParams,
FileChangeType,
ParameterInformation,
SymbolKind,
} from "vscode-languageserver"
import * as docs from "./documentation/documentation"
import * as inlays from "./inlays/collect"
import * as foldings from "./foldings/collect"
import * as semantic from "./semantic_tokens/collect"
import * as lens from "./lens/collect"
import * as search from "./search/implementations"
import * as path from "node:path"
import {existsSync} from "node:fs"
import type {ClientOptions} from "@shared/config-scheme"
import {
GetDocumentationAtPositionRequest,
GetDocumentationAtPositionResponse,
GetTypeAtPositionParams,
GetTypeAtPositionRequest,
GetTypeAtPositionResponse,
SetToolchainVersionNotification,
SetToolchainVersionParams,
} from "@shared/shared-msgtypes"
import {KeywordsCompletionProvider} from "./completion/providers/KeywordsCompletionProvider"
import type {CompletionProvider} from "./completion/CompletionProvider"
import {SelfCompletionProvider} from "./completion/providers/SelfCompletionProvider"
import {ReturnCompletionProvider} from "./completion/providers/ReturnCompletionProvider"
import {BaseTy, FieldsOwnerTy} from "./types/BaseTy"
import type {PrepareRenameResult} from "vscode-languageserver-protocol/lib/common/protocol"
import {
Constant,
Contract,
Field,
Fun,
InitFunction,
Message,
MessageFunction,
Primitive,
StorageMembersOwner,
Struct,
Trait,
} from "@server/psi/Decls"
import {ReferenceCompletionProvider} from "./completion/providers/ReferenceCompletionProvider"
import {OverrideCompletionProvider} from "./completion/providers/OverrideCompletionProvider"
import {TraitOrContractFieldsCompletionProvider} from "./completion/providers/TraitOrContractFieldsCompletionProvider"
import {TlbSerializationCompletionProvider} from "./completion/providers/TlbSerializationCompletionProvider"
import {MessageMethodCompletionProvider} from "./completion/providers/MessageMethodCompletionProvider"
import {MemberFunctionCompletionProvider} from "./completion/providers/MemberFunctionCompletionProvider"
import {TopLevelFunctionCompletionProvider} from "./completion/providers/TopLevelFunctionCompletionProvider"
import {measureTime, parentOfType} from "@server/psi/utils"
import {Logger} from "@server/utils/logger"
import {MapTypeCompletionProvider} from "./completion/providers/MapTypeCompletionProvider"
import {UnusedParameterInspection} from "./inspections/UnusedParameterInspection"
import {EmptyBlockInspection} from "./inspections/EmptyBlockInspection"
import {UnusedVariableInspection} from "./inspections/UnusedVariableInspection"
import {CACHE} from "./cache"
import {
FIFT_PARSED_FILES_CACHE,
findFiftFile,
findFile,
IndexRoot,
IndexRootKind,
PARSED_FILES_CACHE,
} from "./index-root"
import {StructInitializationInspection} from "./inspections/StructInitializationInspection"
import {AsmInstructionCompletionProvider} from "./completion/providers/AsmInstructionCompletionProvider"
import {generateAsmDoc} from "./documentation/asm_documentation"
import {clearDocumentSettings, getDocumentSettings, TactSettings} from "@server/utils/settings"
import {ContractDeclCompletionProvider} from "./completion/providers/ContractDeclCompletionProvider"
import {collectFift} from "./fift/foldings/collect"
import {collectFift as collectFiftSemanticTokens} from "./fift/semantic_tokens/collect"
import {FiftReference} from "@server/fift/psi/FiftReference"
import {collectFift as collectFiftInlays} from "./fift/inlays/collect"
import {FiftReferent} from "@server/fift/psi/FiftReferent"
import {generateFiftDocFor} from "./fift/documentation/documentation"
import {UnusedContractMembersInspection} from "./inspections/UnusedContractMembersInspection"
import {generateKeywordDoc} from "@server/documentation/keywords_documentation"
import {UnusedImportInspection} from "./inspections/UnusedImportInspection"
import {ImportResolver} from "@server/psi/ImportResolver"
import {SnippetsCompletionProvider} from "@server/completion/providers/SnippetsCompletionProvider"
import {CompletionResult} from "@server/completion/WeightedCompletionItem"
import type {DocumentUri, TextEdit} from "vscode-languageserver-types"
import {MissedFieldInContractInspection} from "@server/inspections/MissedFieldInContractInspection"
import type {Node as SyntaxNode} from "web-tree-sitter"
import {TraitOrContractConstantsCompletionProvider} from "@server/completion/providers/TraitOrContractConstantsCompletionProvider"
import {generateTlBTypeDoc} from "@server/documentation/tlb_type_documentation"
import {BouncedTypeCompletionProvider} from "@server/completion/providers/BouncedTypeCompletionProvider"
import {TopLevelCompletionProvider} from "@server/completion/providers/TopLevelCompletionProvider"
import type {Intention, IntentionArguments, IntentionContext} from "@server/intentions/Intention"
import {AddExplicitType} from "@server/intentions/AddExplicitType"
import {AddImport} from "@server/intentions/AddImport"
import {NotImportedSymbolInspection} from "@server/inspections/NotImportedSymbolInspection"
import {FillFieldsStructInit, FillRequiredStructInit} from "@server/intentions/FillFieldsStructInit"
import {generateInitDoc, generateReceiverDoc} from "@server/documentation/receivers_documentation"
import {AsKeywordCompletionProvider} from "@server/completion/providers/AsKeywordCompletionProvider"
import {AddFieldInitialization} from "@server/intentions/AddFieldInitialization"
import {
WrapSelectedToRepeat,
WrapSelectedToTry,
WrapSelectedToTryCatch,
} from "@server/intentions/WrapSelected"
import {PostfixCompletionProvider} from "@server/completion/providers/PostfixCompletionProvider"
import {InvalidToolchainError, setProjectStdlibPath, Toolchain} from "@server/toolchain/toolchain"
import {ImportPathCompletionProvider} from "@server/completion/providers/ImportPathCompletionProvider"
import {FileDiff} from "@server/utils/FileDiff"
import {CompletionItemAdditionalInformation} from "@server/completion/ReferenceCompletionProcessor"
import {GetterCompletionProvider} from "@server/completion/providers/GetterCompletionProvider"
import {CompilerInspection} from "@server/inspections/CompilerInspection"
import {setToolchain, setWorkspaceRoot, toolchain} from "@server/toolchain"
import {MistiInspection} from "@server/inspections/MistInspection"
/**
* Whenever LS is initialized.
*
* @see initialize
* @see initializeFallback
*/
let initialized = false
let clientInfo: {name?: string; version?: string} = {name: "", version: ""}
/**
* Root folders for project.
* Used to find files to index.
*/
let workspaceFolders: lsp.WorkspaceFolder[] | null = null
const showErrorMessage = (msg: string): void => {
void connection.sendNotification(lsp.ShowMessageNotification.type, {
type: lsp.MessageType.Error,
message: msg,
})
}
function findStdlib(settings: TactSettings, rootDir: string): string | null {
if (settings.stdlib.path !== null && settings.stdlib.path.length > 0) {
return settings.stdlib.path
}
const searchDirs = [
"node_modules/@tact-lang/compiler/src/stdlib/stdlib",
"node_modules/@tact-lang/compiler/src/stdlib",
"node_modules/@tact-lang/compiler/stdlib",
"stdlib",
]
const localFolder =
searchDirs.find(searchDir => {
return existsSync(path.join(rootDir, searchDir))
}) ?? null
if (localFolder === null) {
console.error(
"Standard library not found! Searched in:\n",
searchDirs.map(dir => path.join(rootDir, dir)).join("\n"),
)
showErrorMessage(
"Tact standard library is missing! Try installing dependencies with `yarn/npm install` or specify `tact.stdlib.path` in settings",
)
return null
}
const stdlibPath = path.join(rootDir, localFolder)
console.info(`Using Standard library from ${stdlibPath}`)
return stdlibPath
}
async function initialize(): Promise<void> {
if (!workspaceFolders || workspaceFolders.length === 0 || initialized) {
// use fallback later, see `initializeFallback`
return
}
initialized = true
const reporter = await connection.window.createWorkDoneProgress()
reporter.begin("Tact Language Server", 0)
const rootUri = workspaceFolders[0].uri
const rootDir = rootUri.slice(7)
setWorkspaceRoot(rootDir)
const settings = await getDocumentSettings(rootUri)
try {
setToolchain(
settings.toolchain.compilerPath === ""
? Toolchain.autoDetect(rootDir)
: Toolchain.fromPath(settings.toolchain.compilerPath),
)
console.info(`using toolchain ${toolchain.toString()}`)
await connection.sendNotification(SetToolchainVersionNotification, {
version: toolchain.version,
} satisfies SetToolchainVersionParams)
} catch (error) {
if (error instanceof InvalidToolchainError) {
console.info(`toolchain is invalid ${error.message}`)
showErrorMessage(error.message)
}
}
const stdlibPath = findStdlib(settings, rootDir)
if (stdlibPath !== null) {
reporter.report(50, "Indexing: (1/3) Standard Library")
const stdlibRoot = new IndexRoot(`file://${stdlibPath}`, IndexRootKind.Stdlib)
await stdlibRoot.index()
}
setProjectStdlibPath(stdlibPath)
reporter.report(55, "Indexing: (2/3) Stubs")
const stubsPath = path.join(__dirname, "stubs")
const stubsRoot = new IndexRoot(`file://${stubsPath}`, IndexRootKind.Stdlib)
await stubsRoot.index()
reporter.report(80, "Indexing: (3/3) Workspace")
const workspaceRoot = new IndexRoot(rootUri, IndexRootKind.Workspace)
await workspaceRoot.index()
reporter.report(100, "Ready")
// When we are ready, just reload all applied highlighting and hints and clear cache
// This way we support fast local resolving and then full resolving after indexing.
// Only run this in VS Code, as other editors may not handle these requests (like Helix)
if (clientInfo.name?.includes("Code") || clientInfo.name?.includes("Codium")) {
await connection.sendRequest(lsp.SemanticTokensRefreshRequest.type)
await connection.sendRequest(lsp.InlayHintRefreshRequest.type)
}
CACHE.clear()
reporter.done()
}
// eslint-disable-next-line @typescript-eslint/no-misused-promises
connection.onInitialized(async () => {
await initialize()
})
function findConfigFileDir(startPath: string, fileName: string): string | null {
let currentPath = startPath
// search only at depths up to 20
for (let i = 0; i < 20; i++) {
const potentialPath = path.join(currentPath, fileName)
if (existsSync(potentialPath)) return currentPath
const parentPath = path.dirname(currentPath)
if (parentPath === currentPath) break
currentPath = parentPath
}
return null
}
// For some reason some editors (like Neovim) doesn't pass workspace folders to initialization.
// So we need to find root first and then call initialize.
async function initializeFallback(uri: string): Promise<void> {
// let's try to initialize with this way
const filepath = uri.slice(7)
const projectDir = findConfigFileDir(path.dirname(filepath), "tact.config.json")
if (projectDir === null) {
console.info(`project directory not found, using file directory`)
const dir = path.dirname(filepath)
workspaceFolders = [
{
uri: `file://${dir}`,
name: path.basename(dir),
},
]
await initialize()
return
}
console.info(`found project directory: ${projectDir}`)
workspaceFolders = [
{
uri: `file://${projectDir}`,
name: path.basename(projectDir),
},
]
await initialize()
}
async function runInspections(uri: string, file: File): Promise<void> {
const inspections = [
new UnusedParameterInspection(),
new EmptyBlockInspection(),
new UnusedVariableInspection(),
new StructInitializationInspection(),
new UnusedContractMembersInspection(),
new UnusedImportInspection(),
new MissedFieldInContractInspection(),
new NotImportedSymbolInspection(),
]
const settings = await getDocumentSettings(uri)
const diagnostics: lsp.Diagnostic[] = []
for (const inspection of inspections) {
if (settings.inspections.disabled.includes(inspection.id)) {
continue
}
diagnostics.push(...inspection.inspect(file))
}
const asyncInspections = [
...(settings.linters.compiler.enable ? [new CompilerInspection()] : []),
...(settings.linters.misti.enable ? [new MistiInspection()] : []),
]
for (const inspection of asyncInspections) {
if (settings.inspections.disabled.includes(inspection.id)) {
continue
}
const allDiagnostics = diagnostics
void inspection.inspect(file).then(diagnostics => {
allDiagnostics.push(...diagnostics)
void connection.sendDiagnostics({uri, diagnostics: allDiagnostics})
})
}
await connection.sendDiagnostics({uri, diagnostics})
}
connection.onInitialize(async (initParams: lsp.InitializeParams): Promise<lsp.InitializeResult> => {
console.info("Started new session")
console.info("Running in", initParams.clientInfo?.name)
console.info("workspaceFolders:", initParams.workspaceFolders)
if (initParams.clientInfo) {
clientInfo = initParams.clientInfo
}
workspaceFolders = initParams.workspaceFolders ?? []
const opts = initParams.initializationOptions as ClientOptions | undefined
const treeSitterUri = opts?.treeSitterWasmUri ?? `${__dirname}/tree-sitter.wasm`
const tactLangUri = opts?.tactLangWasmUri ?? `${__dirname}/tree-sitter-tact.wasm`
const fiftLangUri = opts?.fiftLangWasmUri ?? `${__dirname}/tree-sitter-fift.wasm`
await initParser(treeSitterUri, tactLangUri, fiftLangUri)
const documents = new DocumentStore(connection)
documents.onDidOpen(async event => {
const uri = event.document.uri
console.info("open:", uri)
if (!initialized) {
await initializeFallback(uri)
}
const file = findFile(uri)
index.addFile(uri, file)
if (event.document.languageId === "tact" || uri.endsWith(".tact")) {
await runInspections(uri, file)
}
})
documents.onDidChangeContent(async event => {
if (event.document.version === 1) {
return
}
const uri = event.document.uri
console.info("changed:", uri)
if (uri.endsWith(".fif")) {
FIFT_PARSED_FILES_CACHE.delete(uri)
findFiftFile(uri, event.document.getText())
return
}
index.fileChanged(uri)
const file = findFile(uri, event.document.getText(), true)
index.addFile(uri, file, false)
if (event.document.languageId === "tact" || uri.endsWith(".tact")) {
await runInspections(uri, file)
}
})
connection.onDidChangeWatchedFiles((params: DidChangeWatchedFilesParams) => {
for (const change of params.changes) {
const uri = change.uri
if (!uri.endsWith(".tact")) continue
if (change.type === FileChangeType.Created) {
console.info(`Find external create of ${uri}`)
const file = findFile(uri)
index.addFile(uri, file)
continue
}
if (!PARSED_FILES_CACHE.has(uri)) {
// we don't care about this file
continue
}
if (change.type === FileChangeType.Changed) {
console.info(`Find external change of ${uri}`)
index.fileChanged(uri)
const file = findFile(uri, undefined, true)
index.addFile(uri, file, false)
}
if (change.type === FileChangeType.Deleted) {
console.info(`Find external delete of ${uri}`)
index.removeFile(uri)
}
}
})
connection.onDidChangeConfiguration(() => {
clearDocumentSettings()
void connection.sendRequest(lsp.InlayHintRefreshRequest.type)
void connection.sendRequest(lsp.CodeLensRefreshRequest.type)
})
function nodeAtPosition(params: lsp.TextDocumentPositionParams, file: File): SyntaxNode | null {
const cursorPosition = asParserPoint(params.position)
return file.rootNode.descendantForPosition(cursorPosition)
}
async function provideDocumentation(
uri: string,
params: lsp.HoverParams,
): Promise<lsp.Hover | null> {
if (uri.endsWith(".fif")) {
const file = findFiftFile(uri)
const hoverNode = nodeAtPosition(params, file)
if (!hoverNode || hoverNode.type !== "identifier") return null
const doc = generateFiftDocFor(hoverNode, file)
if (doc === null) return null
return {
range: asLspRange(hoverNode),
contents: {
kind: "markdown",
value: doc,
},
}
}
const file = findFile(params.textDocument.uri)
const hoverNode = nodeAtPosition(params, file)
if (!hoverNode) return null
if (hoverNode.type === "initOf") {
const doc = generateKeywordDoc("initOf")
if (doc === null) return null
return {
range: asLspRange(hoverNode),
contents: {
kind: "markdown",
value: doc,
},
}
}
if (hoverNode.type === "tvm_instruction") {
const asmExpression = hoverNode.parent
if (!asmExpression) return null
const instr = new AsmInstr(asmExpression, file)
const actualName = instr.info()?.mnemonic
if (!actualName) return null
const doc = generateAsmDoc(actualName)
if (doc === null) return null
return {
range: asLspRange(hoverNode),
contents: {
kind: "markdown",
value: doc,
},
}
}
const parent = hoverNode.parent
if (parent?.type === "tlb_serialization") {
const doc = generateTlBTypeDoc(hoverNode.text)
if (doc === null) return null
return {
range: asLspRange(hoverNode),
contents: {
kind: "markdown",
value: doc,
},
}
}
if (
hoverNode.type === "receive" ||
hoverNode.type === "external" ||
hoverNode.type === "bounced"
) {
const parent = hoverNode.parent
if (!parent) return null
const func = new MessageFunction(parent, file)
const doc = generateReceiverDoc(func)
if (doc === null) return null
return {
range: asLspRange(hoverNode),
contents: {
kind: "markdown",
value: doc,
},
}
}
if (hoverNode.type === "init") {
const parent = hoverNode.parent
if (!parent) return null
const func = new InitFunction(parent, file)
const doc = generateInitDoc(func)
if (doc === null) return null
return {
range: asLspRange(hoverNode),
contents: {
kind: "markdown",
value: doc,
},
}
}
if (
hoverNode.type !== "identifier" &&
hoverNode.type !== "type_identifier" &&
hoverNode.type !== "self"
) {
return null
}
const res = Reference.resolve(NamedNode.create(hoverNode, file))
if (res === null) {
if (process.env["TACT_LS_DEV"] !== "true") {
return null
}
return {
range: asLspRange(hoverNode),
contents: {
kind: "plaintext",
value: hoverNode.type,
},
}
}
const doc = await docs.generateDocFor(res, hoverNode)
if (doc === null) return null
return {
range: asLspRange(hoverNode),
contents: {
kind: "markdown",
value: doc,
},
}
}
connection.onRequest(
lsp.HoverRequest.type,
async (params: lsp.HoverParams): Promise<lsp.Hover | null> => {
const uri = params.textDocument.uri
return provideDocumentation(uri, params)
},
)
connection.onRequest(
lsp.DefinitionRequest.type,
(params: lsp.DefinitionParams): lsp.Location[] | lsp.LocationLink[] => {
const uri = params.textDocument.uri
if (uri.endsWith(".fif")) {
const file = findFiftFile(uri)
const node = nodeAtPosition(params, file)
if (!node || node.type !== "identifier") return []
const definition = FiftReference.resolve(node, file)
if (!definition) return []
return [
{
uri: file.uri,
range: asLspRange(definition),
},
]
}
const file = findFile(uri)
const hoverNode = nodeAtPosition(params, file)
if (!hoverNode) return []
if (hoverNode.type === "string" && hoverNode.parent?.type === "import") {
const importedFile = ImportResolver.resolveNode(file, hoverNode)
if (!importedFile) return []
const startOfFile = {
start: {line: 0, character: 0},
end: {line: 0, character: 0},
}
const hoverRange = asLspRange(hoverNode)
return [
{
targetUri: `file://${importedFile}`,
targetRange: startOfFile,
targetSelectionRange: startOfFile,
originSelectionRange: {
start: {
line: hoverRange.start.line,
character: hoverRange.start.character + 1,
},
end: {
line: hoverRange.end.line,
character: hoverRange.end.character - 1,
},
},
} as lsp.LocationLink,
]
}
// resolve `initOf Foo()`
// ^^^^^^ this
// to `init` function of the contract or contract name
if (hoverNode.type === "initOf") {
const resolved = Reference.resolveInitOf(hoverNode, file)
if (!resolved) return []
return [
{
uri: resolved.file.uri,
range: asLspRange(resolved.node),
},
]
}
if (
hoverNode.type !== "identifier" &&
hoverNode.type !== "self" &&
hoverNode.type !== "type_identifier"
) {
return []
}
const element = NamedNode.create(hoverNode, file)
const res = Reference.resolve(element)
if (res === null) {
console.warn(`Cannot find definition for: ${hoverNode.text}`)
return []
}
const ident = res.nameIdentifier()
if (ident === null) return []
return [
{
uri: res.file.uri,
range: asLspRange(ident),
},
]
},
)
connection.onRequest(
lsp.TypeDefinitionRequest.type,
(params: lsp.TypeDefinitionParams): lsp.Definition | lsp.DefinitionLink[] => {
const uri = params.textDocument.uri
const file = findFile(uri)
const hoverNode = nodeAtPosition(params, file)
if (!hoverNode) return []
if (
hoverNode.type !== "identifier" &&
hoverNode.type !== "self" &&
hoverNode.type !== "type_identifier"
) {
return []
}
const type = TypeInferer.inferType(new Expression(hoverNode, file))
if (type === null) {
console.warn(`Cannot infer type for Go to Type Definition for: ${hoverNode.text}`)
return []
}
if (type instanceof BaseTy) {
const anchor = type.anchor as NamedNode
const name = anchor.nameIdentifier()
if (name === null) return []
return [
{
uri: anchor.file.uri,
range: asLspRange(name),
},
]
}
return []
},
)
connection.onRequest(
lsp.CompletionResolveRequest.type,
async (item: lsp.CompletionItem): Promise<lsp.CompletionItem> => {
if (!item.data) return item
const data = item.data as CompletionItemAdditionalInformation
if (
data.file === undefined ||
data.elementFile === undefined ||
data.name === undefined
) {
return item
}
const settings = await getDocumentSettings(data.file.uri)
if (!settings.completion.addImports) return item
const file = findFile(data.file.uri)
const elementFile = findFile(data.elementFile.uri)
// skip the same file element
if (file.uri === elementFile.uri) return item
const importPath = elementFile.importPath(file)
// already imported
if (file.alreadyImport(importPath)) return item
// some files like stubs or stdlib imported implicitly
if (elementFile.isImportedImplicitly()) return item
// guard for multi projects
if (index.hasSeveralDeclarations(data.name)) return item
const positionToInsert = file.positionForNextImport()
const extraLine = positionToInsert.line === 0 && file.imports().length === 0 ? "\n" : ""
const diff = FileDiff.forFile(elementFile.uri)
diff.appendAsPrevLine(positionToInsert.line, `import "${importPath}";${extraLine}`)
return {
...item,
additionalTextEdits: diff.toTextEdits(),
}
},
)
connection.onRequest(
lsp.CompletionRequest.type,
async (params: lsp.CompletionParams): Promise<lsp.CompletionItem[]> => {
const uri = params.textDocument.uri
const file = findFile(uri)
const content = file.content
const parser = createTactParser()
const offset = getOffsetFromPosition(
content,
params.position.line,
params.position.character + 1,
)
const start = content.slice(0, offset)
const end = content.slice(offset)
// Let's say we want to get autocompletion in the following code:
//
// fun foo(p: Builder) {
// p.
// } // ^ caret here
//
// Regular parsers, including those that can recover from errors, will not
// be able to parse this code well enough for us to recognize this situation.
// Some Language Servers try to do this, but they end up with a lot of
// incomprehensible and complex code that doesn't work well.
//
// The approach we use is very simple, instead of parsing the code above,
// we transform it into:
//
// fun foo(p: Builder) {
// p.dummyIdentifier
// } // ^ caret here
//
// Which will be parsed without any problems now.
//
// Now that we have valid code, we can use `Reference.processResolveVariants`
// to resolve `DummyIdentifier` into a list of possible variants, which will
// become the autocompletion list. See `Reference` class documentation.
const newContent = `${start}DummyIdentifier${end}`
const tree = parser.parse(newContent)
if (!tree) return []
const cursorPosition = asParserPoint(params.position)
const cursorNode = tree.rootNode.descendantForPosition(cursorPosition)
if (
cursorNode === null ||
(cursorNode.type !== "identifier" &&
cursorNode.type !== "type_identifier" &&
cursorNode.type !== "string" &&
cursorNode.type !== "tvm_instruction")
) {
return []
}
const element = new NamedNode(cursorNode, new File(uri, tree, newContent))
const ref = new Reference(element)
const ctx = new CompletionContext(
newContent,
element,
params.position,
params.context?.triggerKind ?? lsp.CompletionTriggerKind.Invoked,
await getDocumentSettings(uri),
)
const result = new CompletionResult()
const providers: CompletionProvider[] = [
new SnippetsCompletionProvider(),
new KeywordsCompletionProvider(),
new AsKeywordCompletionProvider(),
new ImportPathCompletionProvider(),
new MapTypeCompletionProvider(),
new BouncedTypeCompletionProvider(),
new GetterCompletionProvider(),
new ContractDeclCompletionProvider(),
new TopLevelFunctionCompletionProvider(),
new TopLevelCompletionProvider(),
new MemberFunctionCompletionProvider(),
new MessageMethodCompletionProvider(),
new TlbSerializationCompletionProvider(),
new OverrideCompletionProvider(),
new TraitOrContractFieldsCompletionProvider(),
new TraitOrContractConstantsCompletionProvider(),
new SelfCompletionProvider(),
new ReturnCompletionProvider(),
new ReferenceCompletionProvider(ref),
new AsmInstructionCompletionProvider(),
new PostfixCompletionProvider(),
]
providers.forEach((provider: CompletionProvider) => {
if (!provider.isAvailable(ctx)) return
provider.addCompletion(ctx, result)
})
return result.sorted()
},
)
connection.onRequest(
lsp.InlayHintRequest.type,
async (params: lsp.InlayHintParams): Promise<lsp.InlayHint[] | null> => {
const uri = params.textDocument.uri
if (uri.endsWith(".fif")) {
const file = findFiftFile(uri)
const settings = await getDocumentSettings(uri)
return collectFiftInlays(file, settings.hints.gasFormat, settings.fift.hints)
}
const file = findFile(uri)
const settings = await getDocumentSettings(uri)
return inlays.collect(file, settings.hints, settings.gas)
},
)
connection.onRequest(
lsp.ImplementationRequest.type,
(params: lsp.ImplementationParams): lsp.Definition | lsp.LocationLink[] => {
const uri = params.textDocument.uri
const file = findFile(uri)
const elementNode = nodeAtPosition(params, file)
if (!elementNode) return []
if (
elementNode.type !== "identifier" &&
elementNode.type !== "self" &&
elementNode.type !== "type_identifier"
) {
return []
}
const element = NamedNode.create(elementNode, file)
const res = Reference.resolve(element)
if (res === null) return []
if (res instanceof Trait) {
return search.implementations(res).map(impl => ({
uri: impl.file.uri,
range: asNullableLspRange(impl.nameIdentifier()),
}))
}
if (res instanceof Fun) {
return search.implementationsFun(res).map(impl => ({
uri: impl.file.uri,
range: asNullableLspRange(impl.nameIdentifier()),
}))
}
return []
},
)
connection.onRequest(lsp.RenameRequest.type, (params: lsp.RenameParams) => {
const uri = params.textDocument.uri
const file = findFile(uri)
const renameNode = nodeAtPosition(params, file)
if (!renameNode) return null
const result = new Referent(renameNode, file).findReferences(true, false, false)
if (result.length === 0) return null
const changes: Record<DocumentUri, TextEdit[]> = {}
result.forEach(node => {
const uri = node.file.uri
const element = {
range: asLspRange(node.node),
newText: params.newName,
}
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
if (changes[uri]) {
changes[uri].push(element)
} else {
changes[uri] = [element]
}
})
return {changes}
})
connection.onRequest(
lsp.PrepareRenameRequest.type,
(params: lsp.PrepareRenameParams): PrepareRenameResult | null => {
const uri = params.textDocument.uri
const file = findFile(uri)
const renameNode = nodeAtPosition(params, file)
if (!renameNode) return null
if (renameNode.type !== "identifier" && renameNode.type !== "type_identifier") {
return null
}
const element = NamedNode.create(renameNode, file)
const res = Reference.resolve(element)
if (res === null) return null
if (res.file.fromStdlib || res.file.fromStubs) {
showErrorMessage(`Can not rename element from Standard Library`)
return null
}
return {
range: asLspRange(renameNode),
defaultBehavior: true,
placeholder: renameNode.text,
}
},
)
connection.onRequest(
lsp.DocumentHighlightRequest.type,
(params: lsp.DocumentHighlightParams): lsp.DocumentHighlight[] | null => {
const file = findFile(params.textDocument.uri)
const highlightNode = nodeAtPosition(params, file)
if (!highlightNode) return null
if (
highlightNode.type !== "identifier" &&
highlightNode.type !== "self" &&
highlightNode.type !== "type_identifier"
) {
return []
}
const result = new Referent(highlightNode, file).findReferences(true, true, true)
if (result.length === 0) return null