output: { type: 'Program', body: [ { type: 'BlockStatement', body: [ { type: 'LabeledStatement', label: { type: 'Identifier', name: 'block' }, body: { type: 'ExpressionStatement', expression: { type: 'Identifier', name: 'statement' } } } ] } ] } ariya/esprima input: ({object: expression}) ariya/esprima output: { type: 'Program', body: [ { type: 'ExpressionStatement', expression: { type: 'ObjectExpression', properties: [ { type: 'Property', key: { type: 'Identifier', name: 'object' }, value: { type: 'Identifier', name: 'expression' }, kind: 'init' } ] } } ] }