Function transform

transform(node: Expression, config: TransformConfig): Expression

Transform an AST tree, returning a new tree with modifications

Parameters

node: Expression
config: TransformConfig

Returns Expression

Example

// Rename all columns named 'old' to 'new'
const newAst = transform(ast, {
  column: (node) => {
    const data = getExprData(node);
    if (data.name.name === 'old') {
      return makeExpr('column', { ...data, name: { ...data.name, name: 'new' } });
    }
  }
});