chore: import upstream snapshot with attribution

2026-07-13 13:32:57 +08:00
commit cd420f9332
4811 changed files with 884702 additions and 0 deletions
@@ -0,0 +1,208 @@
+import type { EditorView } from "@codemirror/view";
+import type { Diagnostic } from "@codemirror/lint";
+import type { TableSchema } from "@internal/tsql";
+import { parseTSQLSelect, SyntaxError, QueryError, validateQuery } from "@internal/tsql";
+
+/**
+ * Configuration for the TSQL linter
+ */
+export interface TSQLLinterConfig {
+  /** Optional schema for validating table/column names */
+  schema?: TableSchema[];
+  /** Delay in milliseconds before running the linter (debouncing) */
+  delay?: number;
+}
+
+/**
+ * Extract line and column from a TSQL error message
+ * Error format: "Syntax error at line X:Y: message"
+ */
+function parseErrorPosition(message: string): { line: number; column: number } | null {
+  const match = message.match(/at line (\d+):(\d+)/);
+  if (match) {
+    return {
+      line: parseInt(match[1], 10),
+      column: parseInt(match[2], 10),
+    };
+  }
+  return null;
+}
+
+/**
+ * Convert line/column to a document position
+ */
+function positionToOffset(doc: string, line: number, column: number): number {
+  const lines = doc.split("\n");
+
+  // line is 1-indexed
+  let offset = 0;
+  for (let i = 0; i < line - 1 && i < lines.length; i++) {
+    offset += lines[i].length + 1; // +1 for newline
+  }
+
+  return offset + column;
+}
+
+/**
+ * Find the end of a word/token at the given position
+ */
+function findTokenEnd(doc: string, start: number): number {
+  let end = start;
+
+  // Scan forward until we hit whitespace or end of string
+  while (end < doc.length && /\S/.test(doc[end])) {
+    end++;
+  }
+
+  // If we didn't move, include at least one character
+  if (end === start) {
+    end = Math.min(start + 1, doc.length);
+  }
+
+  return end;
+}
+
+/**
+ * Create a TSQL linter function for CodeMirror
+ *
+ * This linter uses the TSQL ANTLR parser to detect syntax errors
+ * and optionally validates against a schema.
+ *
+ * @param config - Linter configuration
+ * @returns A linter function for use with CodeMirror's linter extension
+ */
+export function createTSQLLinter(
+  config: TSQLLinterConfig = {}
+): (view: EditorView) => Diagnostic[] {
+  const { schema = [] } = config;
+
+  return (view: EditorView): Diagnostic[] => {
+    const content = view.state.doc.toString().trim();
+
+    // Return no errors for empty content
+    if (!content) {
+      return [];
+    }
+
+    const diagnostics: Diagnostic[] = [];
+
+    try {
+      // Try to parse the query
+      const ast = parseTSQLSelect(content);
+
+      // If parsing succeeds and we have a schema, run schema validation
+      if (schema.length > 0) {
+        const validationResult = validateQuery(ast, schema);
+
+        for (const issue of validationResult.issues) {
+          // Map validation severity to CodeMirror diagnostic severity
+          const severity: "error" | "warning" | "info" =
+            issue.severity === "error"
+              ? "error"
+              : issue.severity === "warning"
+                ? "warning"
+                : "info";
+
+          diagnostics.push({
+            from: 0,
+            to: content.length,
+            severity,
+            message: issue.message,
+            source: "tsql",
+          });
+        }
+      }
+    } catch (error) {
+      if (error instanceof SyntaxError) {
+        const position = parseErrorPosition(error.message);
+
+        let from: number;
+        let to: number;
+
+        if (position) {
+          from = positionToOffset(content, position.line, position.column);
+          to = findTokenEnd(content, from);
+        } else {
+          // If we can't parse the position, highlight the whole query
+          from = 0;
+          to = content.length;
+        }
+
+        // Clean up the error message
+        let message = error.message;
+        // Remove the "Syntax error at line X:Y: " prefix if present
+        message = message.replace(/^Syntax error at line \d+:\d+:\s*/, "");
+
+        diagnostics.push({
+          from,
+          to,
+          severity: "error",
+          message: message,
+          source: "tsql",
+        });
+      } else if (error instanceof QueryError) {
+        // Schema validation errors don't have position info,
+        // so highlight the whole query
+        diagnostics.push({
+          from: 0,
+          to: content.length,
+          severity: "warning",
+          message: error.message,
+          source: "tsql",
+        });
+      } else if (error instanceof Error) {
+        // Unknown error
+        diagnostics.push({
+          from: 0,
+          to: content.length,
+          severity: "error",
+          message: error.message,
+          source: "tsql",
+        });
+      }
+    }
+
+    return diagnostics;
+  };
+}
+
+/**
+ * Check if a TSQL query is valid
+ *
+ * @param query - The query to validate
+ * @returns true if the query is valid, false otherwise
+ */
+export function isValidTSQLQuery(query: string): boolean {
+  if (!query.trim()) {
+    return true; // Empty queries are considered valid
+  }
+
+  try {
+    parseTSQLSelect(query);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Get error message for a TSQL query, if any
+ *
+ * @param query - The query to validate
+ * @returns Error message if invalid, null if valid
+ */
+export function getTSQLError(query: string): string | null {
+  if (!query.trim()) {
+    return null;
+  }
+
+  try {
+    parseTSQLSelect(query);
+    return null;
+  } catch (error) {
+    if (error instanceof Error) {
+      return error.message;
+    }
+    return "Unknown error";
+  }
+}