feat: implement scanSync

binding.gyp

@@ -16,7 +16,8 @@
             ],
             "include_dirs": [
                 "<!@(node -p \"require('node-addon-api').include\")",
-                "<!@(pwd)/libpg_query"
+                "<!@(pwd)/libpg_query",
+                "<!@(pwd)/libpg_query/vendor",
             ],
             "cflags!": [
                 "-fno-exceptions"

src/addon.cc

@@ -34,6 +34,11 @@ Napi::Object Init(Napi::Env env, Napi::Object exports) {
       Napi::Function::New(env, FingerprintAsync)
   );
 
+  exports.Set(
+      Napi::String::New(env, "scanSync"),
+      Napi::Function::New(env, ScanSync)
+  );
+
   exports.Set(
       Napi::String::New(env, "splitWithScannerSync"),
       Napi::Function::New(env, SplitWithScannerSync)

src/lib/binding.ts

@@ -1,5 +1,6 @@
 import bindings from 'bindings'
 import type { Node } from './ast'
+import type { TokenKind, KeywordKind } from './tokens'
 
 const loadAddon = () => bindings('queryparser')
 
@@ -19,6 +20,7 @@ let PgQuery: {
     callback: (err: Error | null, result: string) => void,
   ) => void
   fingerprintSync: (query: string) => string
+  scanSync: (query: string) => ScanResult
   splitWithScannerSync: (query: string) => {
     location: number
     length: number
@@ -30,6 +32,15 @@ export type ParseResult = {
   version: number
 }
 
+export interface Token {
+  kind: TokenKind
+  start: number
+  end: number
+  keyword: KeywordKind
+}
+
+export type ScanResult = Token[]
+
 export function parseQuery(query: string) {
   return new Promise<ParseResult>((resolve, reject) => {
     PgQuery ??= loadAddon()
@@ -69,6 +80,10 @@ export function fingerprintSync(query: string): string {
   return (PgQuery ??= loadAddon()).fingerprintSync(query)
 }
 
+export function scanSync(query: string) {
+  return (PgQuery ??= loadAddon()).scanSync(query)
+}
+
 export function splitWithScannerSync(query: string) {
   return (PgQuery ??= loadAddon()).splitWithScannerSync(query)
 }

src/lib/index.ts

@@ -2,4 +2,5 @@ export * from './ast.js'
 export * from './binding.js'
 export * from './node.js'
 export * from './select.js'
+export * from './tokens.js'
 export * from './walk.js'