--- /dev/null
+
+// for us typescript ignorati, having an import makes this file a module
+import * as fs from 'fs';
+import * as ts from 'typescript';
+
+// This file contains various utilities having to do with producing strings
+// and managing output
+
+// ------ create files
+let dir = process.env['HOME'];
+const srcDir = '/vscode-languageserver-node'
+export const fnames = [
+ `${dir}${srcDir}/protocol/src/common/protocol.ts`,
+ `${dir}/${srcDir}/protocol/src/browser/main.ts`, `${dir}${srcDir}/types/src/main.ts`,
+ `${dir}${srcDir}/jsonrpc/src/node/main.ts`
+];
+export const gitHash = '901fd40345060d159f07d234bbc967966a929a34'
+let outFname = 'tsprotocol.go';
+let fda: number, fdb: number, fde: number; // file descriptors
+
+export function createOutputFiles() {
+ fda = fs.openSync('/tmp/ts-a', 'w') // dump of AST
+ fdb = fs.openSync('/tmp/ts-b', 'w') // unused, for debugging
+ fde = fs.openSync(outFname, 'w') // generated Go
+}
+export function pra(s: string) {
+ return (fs.writeSync(fda, s))
+}
+export function prb(s: string) {
+ return (fs.writeSync(fdb, s))
+}
+export function prgo(s: string) {
+ return (fs.writeSync(fde, s))
+}
+
+// Get the hash value of the git commit
+export function git(): string {
+ let a = fs.readFileSync(`${dir}${srcDir}/.git/HEAD`).toString();
+ // ref: refs/heads/foo, or a hash like
+ // cc12d1a1c7df935012cdef5d085cdba04a7c8ebe
+ if (a.charAt(a.length - 1) == '\n') {
+ a = a.substring(0, a.length - 1);
+ }
+ if (a.length == 40) {
+ return a // a hash
+ }
+ if (a.substring(0, 5) == 'ref: ') {
+ const fname = `${dir}${srcDir}/.git/` + a.substring(5);
+ let b = fs.readFileSync(fname).toString()
+ if (b.length == 41) {
+ return b.substring(0, 40);
+ }
+ }
+ throw new Error('failed to find the git commit hash')
+}
+
+// Produce a header for Go output files
+export function computeHeader(pkgDoc: boolean): string {
+ let lastMod = 0
+ let lastDate: Date
+ for (const f of fnames) {
+ const st = fs.statSync(f)
+ if (st.mtimeMs > lastMod) {
+ lastMod = st.mtimeMs
+ lastDate = st.mtime
+ }
+ }
+ const a =
+ `// Package protocol contains data types and code for LSP jsonrpcs\n` +
+ `// generated automatically from vscode-languageserver-node\n` +
+ `// commit: ${gitHash}\n` +
+ `// last fetched ${lastDate}\n`
+ const b = 'package protocol\n'
+ const c = `\n// Code generated (see typescript/README.md) DO NOT EDIT.\n\n`
+ if (pkgDoc) {
+ return a + b + c
+ }
+ else {
+ return b + a + c
+ }
+};
+
+// Turn a typescript name into an exportable Go name, and appease lint
+export function goName(s: string): string {
+ let ans = s
+ if (s.charAt(0) == '_') {
+ ans = 'Inner' + s.substring(1)
+ }
+ else { ans = s.substring(0, 1).toUpperCase() + s.substring(1) };
+ ans = ans.replace(/Uri$/, 'URI')
+ ans = ans.replace(/Id$/, 'ID')
+ return ans
+}
+
+// Generate JSON tag for a struct field
+export function JSON(n: ts.PropertySignature): string {
+ const json = `\`json:"${n.name.getText()}${
+ n.questionToken != undefined ? ',omitempty' : ''}"\``;
+ return json
+}
+
+// Generate modifying prefixes and suffixes to ensure
+// consts are unique. (Go consts are package-level, but Typescript's are
+// not.) Use suffixes to minimize changes to gopls.
+export function constName(nm: string, type: string): string {
+ let pref = new Map<string, string>([
+ ['DiagnosticSeverity', 'Severity'], ['WatchKind', 'Watch'],
+ ['SignatureHelpTriggerKind', 'Sig'], ['CompletionItemTag', 'Compl']
+ ]) // typeName->prefix
+ let suff = new Map<string, string>([
+ ['CompletionItemKind', 'Completion'], ['InsertTextFormat', 'TextFormat'],
+ ['SymbolTag', 'Symbol']
+ ])
+ let ans = nm;
+ if (pref.get(type)) ans = pref.get(type) + ans;
+ if (suff.has(type)) ans = ans + suff.get(type)
+ return ans
+}
+
+// Find the comments associated with an AST node
+export function getComments(node: ts.Node): string {
+ const sf = node.getSourceFile();
+ const start = node.getStart(sf, false)
+ const starta = node.getStart(sf, true)
+ const x = sf.text.substring(starta, start)
+ return x
+}
+
+
+// --------- printing the AST, for debugging
+
+export function printAST(program: ts.Program) {
+ // dump the ast, for debugging
+ const f = function (n: ts.Node) {
+ describe(n, pra)
+ };
+ for (const sourceFile of program.getSourceFiles()) {
+ if (!sourceFile.isDeclarationFile) {
+ // walk the tree to do stuff
+ ts.forEachChild(sourceFile, f);
+ }
+ }
+ pra('\n')
+ for (const key of Object.keys(seenThings).sort()) {
+ pra(`${key}: ${seenThings[key]} \n`)
+ }
+}
+
+// Used in printing the AST
+let seenThings = new Map<string, number>();
+function seenAdd(x: string) {
+ seenThings[x] = (seenThings[x] === undefined ? 1 : seenThings[x] + 1)
+}
+
+function describe(node: ts.Node, pr: (s: string) => any) {
+ if (node === undefined) {
+ return
+ }
+ let indent = '';
+
+ function f(n: ts.Node) {
+ seenAdd(kinds(n))
+ if (ts.isIdentifier(n)) {
+ pr(`${indent} ${loc(n)} ${strKind(n)} ${n.text} \n`)
+ }
+ else if (ts.isPropertySignature(n) || ts.isEnumMember(n)) {
+ pra(`${indent} ${loc(n)} ${strKind(n)} \n`)
+ }
+ else if (ts.isTypeLiteralNode(n)) {
+ let m = n.members
+ pr(`${indent} ${loc(n)} ${strKind(n)} ${m.length} \n`)
+ }
+ else if (ts.isStringLiteral(n)) {
+ pr(`${indent} ${loc(n)} ${strKind(n)} ${n.text} \n`)
+ }
+ else { pr(`${indent} ${loc(n)} ${strKind(n)} \n`) };
+ indent += ' .'
+ ts.forEachChild(n, f)
+ indent = indent.slice(0, indent.length - 2)
+ }
+ f(node)
+}
+
+
+// For debugging, say where an AST node is in a file
+export function loc(node: ts.Node): string {
+ const sf = node.getSourceFile();
+ const start = node.getStart()
+ const x = sf.getLineAndCharacterOfPosition(start)
+ const full = node.getFullStart()
+ const y = sf.getLineAndCharacterOfPosition(full)
+ let fn = sf.fileName
+ const n = fn.search(/-node./)
+ fn = fn.substring(n + 6)
+ return `${fn} ${x.line + 1}: ${x.character + 1} (${y.line + 1}: ${
+ y.character + 1})`
+}
+// --- various string stuff
+
+// return a string of the kinds of the immediate descendants
+// as part of printing the AST tree
+function kinds(n: ts.Node): string {
+ let res = 'Seen ' + strKind(n);
+ function f(n: ts.Node): void { res += ' ' + strKind(n) };
+ ts.forEachChild(n, f)
+ return res
+}
+
+// What kind of AST node is it? This would just be typescript's
+// SyntaxKind[n.kind] except that the default names for some nodes
+// are misleading
+export function strKind(n: ts.Node): string {
+ if (n == null || n == undefined) {
+ return 'null'
+ }
+ const x = ts.SyntaxKind[n.kind];
+ // some of these have two names
+ switch (x) {
+ default:
+ return x;
+ case 'FirstAssignment':
+ return 'EqualsToken';
+ case 'FirstBinaryOperator':
+ return 'LessThanToken';
+ case 'FirstCompoundAssignment':
+ return 'PlusEqualsToken';
+ case 'FirstContextualKeyword':
+ return 'AbstractKeyword';
+ case 'FirstLiteralToken':
+ return 'NumericLiteral';
+ case 'FirstNode':
+ return 'QualifiedName';
+ case 'FirstTemplateToken':
+ return 'NoSubstitutionTemplateLiteral';
+ case 'LastTemplateToken':
+ return 'TemplateTail';
+ case 'FirstTypeNode':
+ return 'TypePredicate';
+ }
+}
projects / dotfiles / .git / blobdiff