rawsql-ts/dist/parsers/utils/LexemeCommentUtils.js

High-performance SQL parser and AST analyzer written in TypeScript. Provides fast parsing and advanced transformation capabilities.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.extractLexemeComments = extractLexemeComments;
// Extracts positioned comments from a lexeme while preserving order and duplicates.
function extractLexemeComments(lexeme) {
    const before = [];
    const after = [];
    if (!lexeme) {
        return { before, after };
    }
    if (lexeme.positionedComments && lexeme.positionedComments.length > 0) {
        for (const positioned of lexeme.positionedComments) {
            if (!positioned.comments || positioned.comments.length === 0) {
                continue;
            }
            if (positioned.position === "before") {
                before.push(...positioned.comments);
            }
            else if (positioned.position === "after") {
                after.push(...positioned.comments);
            }
        }
    }
    else if (lexeme.comments && lexeme.comments.length > 0) {
        before.push(...lexeme.comments);
    }
    return { before, after };
}
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