@csvw-rdf-convertor/core/dist/lib/table-schema.js

This library was generated with [Nx](https://nx.dev).

import { MultiMap } from 'mnemonist';
export class TableSchema {
    get columns() {
        return this._columns;
    }
    addColumns(...columns) {
        this._columns.push(...columns);
    }
    /** you need to verify foreign keys integrity yourself */ removeColumns(...columns) {
        if (columns.some((column)=>this.primaryKey.has(column))) {
            throw new Error('Cannot remove a column that is part of the primary key');
        }
        this._columns = this._columns.filter((column)=>!columns.includes(column));
    }
    /** you need to verify foreign keys integrity yourself */ renameColumn(oldName, newName) {
        if (this.columns.includes(newName)) {
            throw new Error('Cannot rename to an existing column');
        }
        const i = this._columns.indexOf(oldName);
        if (i === -1) {
            throw new Error('Column not found');
        }
        this._columns[i] = newName;
        if (this.primaryKey.delete(oldName)) {
            this.primaryKey.delete(oldName);
            this.primaryKey.add(newName);
        }
    }
    constructor(name){
        this.name = name;
        this._columns = [];
        this.primaryKey = new Set();
        this.foreignKeys = new MultiMap(Set);
    }
}

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