@dillonkearns/elm-graphql
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JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.print = print;
var _visitor = require('./visitor');
/**
* Converts an AST into a string, using one set of reasonable
* formatting rules.
*/
function print(ast) {
return (0, _visitor.visit)(ast, { leave: printDocASTReducer });
} /**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
var printDocASTReducer = {
Name: function Name(node) {
return node.value;
},
Variable: function Variable(node) {
return '$' + node.name;
},
// Document
Document: function Document(node) {
return join(node.definitions, '\n\n') + '\n';
},
OperationDefinition: function OperationDefinition(node) {
var op = node.operation;
var name = node.name;
var varDefs = wrap('(', join(node.variableDefinitions, ', '), ')');
var directives = join(node.directives, ' ');
var selectionSet = node.selectionSet;
// Anonymous queries with no directives or variable definitions can use
// the query short form.
return !name && !directives && !varDefs && op === 'query' ? selectionSet : join([op, join([name, varDefs]), directives, selectionSet], ' ');
},
VariableDefinition: function VariableDefinition(_ref) {
var variable = _ref.variable,
type = _ref.type,
defaultValue = _ref.defaultValue;
return variable + ': ' + type + wrap(' = ', defaultValue);
},
SelectionSet: function SelectionSet(_ref2) {
var selections = _ref2.selections;
return block(selections);
},
Field: function Field(_ref3) {
var alias = _ref3.alias,
name = _ref3.name,
args = _ref3.arguments,
directives = _ref3.directives,
selectionSet = _ref3.selectionSet;
return join([wrap('', alias, ': ') + name + wrap('(', join(args, ', '), ')'), join(directives, ' '), selectionSet], ' ');
},
Argument: function Argument(_ref4) {
var name = _ref4.name,
value = _ref4.value;
return name + ': ' + value;
},
// Fragments
FragmentSpread: function FragmentSpread(_ref5) {
var name = _ref5.name,
directives = _ref5.directives;
return '...' + name + wrap(' ', join(directives, ' '));
},
InlineFragment: function InlineFragment(_ref6) {
var typeCondition = _ref6.typeCondition,
directives = _ref6.directives,
selectionSet = _ref6.selectionSet;
return join(['...', wrap('on ', typeCondition), join(directives, ' '), selectionSet], ' ');
},
FragmentDefinition: function FragmentDefinition(_ref7) {
var name = _ref7.name,
typeCondition = _ref7.typeCondition,
directives = _ref7.directives,
selectionSet = _ref7.selectionSet;
return 'fragment ' + name + ' on ' + typeCondition + ' ' + wrap('', join(directives, ' '), ' ') + selectionSet;
},
// Value
IntValue: function IntValue(_ref8) {
var value = _ref8.value;
return value;
},
FloatValue: function FloatValue(_ref9) {
var value = _ref9.value;
return value;
},
StringValue: function StringValue(_ref10) {
var value = _ref10.value;
return JSON.stringify(value);
},
BooleanValue: function BooleanValue(_ref11) {
var value = _ref11.value;
return JSON.stringify(value);
},
NullValue: function NullValue() {
return 'null';
},
EnumValue: function EnumValue(_ref12) {
var value = _ref12.value;
return value;
},
ListValue: function ListValue(_ref13) {
var values = _ref13.values;
return '[' + join(values, ', ') + ']';
},
ObjectValue: function ObjectValue(_ref14) {
var fields = _ref14.fields;
return '{' + join(fields, ', ') + '}';
},
ObjectField: function ObjectField(_ref15) {
var name = _ref15.name,
value = _ref15.value;
return name + ': ' + value;
},
// Directive
Directive: function Directive(_ref16) {
var name = _ref16.name,
args = _ref16.arguments;
return '@' + name + wrap('(', join(args, ', '), ')');
},
// Type
NamedType: function NamedType(_ref17) {
var name = _ref17.name;
return name;
},
ListType: function ListType(_ref18) {
var type = _ref18.type;
return '[' + type + ']';
},
NonNullType: function NonNullType(_ref19) {
var type = _ref19.type;
return type + '!';
},
// Type System Definitions
SchemaDefinition: function SchemaDefinition(_ref20) {
var directives = _ref20.directives,
operationTypes = _ref20.operationTypes;
return join(['schema', join(directives, ' '), block(operationTypes)], ' ');
},
OperationTypeDefinition: function OperationTypeDefinition(_ref21) {
var operation = _ref21.operation,
type = _ref21.type;
return operation + ': ' + type;
},
ScalarTypeDefinition: function ScalarTypeDefinition(_ref22) {
var name = _ref22.name,
directives = _ref22.directives;
return join(['scalar', name, join(directives, ' ')], ' ');
},
ObjectTypeDefinition: function ObjectTypeDefinition(_ref23) {
var name = _ref23.name,
interfaces = _ref23.interfaces,
directives = _ref23.directives,
fields = _ref23.fields;
return join(['type', name, wrap('implements ', join(interfaces, ', ')), join(directives, ' '), block(fields)], ' ');
},
FieldDefinition: function FieldDefinition(_ref24) {
var name = _ref24.name,
args = _ref24.arguments,
type = _ref24.type,
directives = _ref24.directives;
return name + wrap('(', join(args, ', '), ')') + ': ' + type + wrap(' ', join(directives, ' '));
},
InputValueDefinition: function InputValueDefinition(_ref25) {
var name = _ref25.name,
type = _ref25.type,
defaultValue = _ref25.defaultValue,
directives = _ref25.directives;
return join([name + ': ' + type, wrap('= ', defaultValue), join(directives, ' ')], ' ');
},
InterfaceTypeDefinition: function InterfaceTypeDefinition(_ref26) {
var name = _ref26.name,
directives = _ref26.directives,
fields = _ref26.fields;
return join(['interface', name, join(directives, ' '), block(fields)], ' ');
},
UnionTypeDefinition: function UnionTypeDefinition(_ref27) {
var name = _ref27.name,
directives = _ref27.directives,
types = _ref27.types;
return join(['union', name, join(directives, ' '), '= ' + join(types, ' | ')], ' ');
},
EnumTypeDefinition: function EnumTypeDefinition(_ref28) {
var name = _ref28.name,
directives = _ref28.directives,
values = _ref28.values;
return join(['enum', name, join(directives, ' '), block(values)], ' ');
},
EnumValueDefinition: function EnumValueDefinition(_ref29) {
var name = _ref29.name,
directives = _ref29.directives;
return join([name, join(directives, ' ')], ' ');
},
InputObjectTypeDefinition: function InputObjectTypeDefinition(_ref30) {
var name = _ref30.name,
directives = _ref30.directives,
fields = _ref30.fields;
return join(['input', name, join(directives, ' '), block(fields)], ' ');
},
TypeExtensionDefinition: function TypeExtensionDefinition(_ref31) {
var definition = _ref31.definition;
return 'extend ' + definition;
},
DirectiveDefinition: function DirectiveDefinition(_ref32) {
var name = _ref32.name,
args = _ref32.arguments,
locations = _ref32.locations;
return 'directive @' + name + wrap('(', join(args, ', '), ')') + ' on ' + join(locations, ' | ');
}
};
/**
* Given maybeArray, print an empty string if it is null or empty, otherwise
* print all items together separated by separator if provided
*/
function join(maybeArray, separator) {
return maybeArray ? maybeArray.filter(function (x) {
return x;
}).join(separator || '') : '';
}
/**
* Given array, print each item on its own line, wrapped in an
* indented "{ }" block.
*/
function block(array) {
return array && array.length !== 0 ? indent('{\n' + join(array, '\n')) + '\n}' : '{}';
}
/**
* If maybeString is not null or empty, then wrap with start and end, otherwise
* print an empty string.
*/
function wrap(start, maybeString, end) {
return maybeString ? start + maybeString + (end || '') : '';
}
function indent(maybeString) {
return maybeString && maybeString.replace(/\n/g, '\n ');
}