commit c4e386620ebbcb792b54376c410a9d353b6437ce · kitten.sh/graphql.web

README.md

···

       44
       44
        
       | `visit` | A recursive reimplementation of GraphQL.js’ visitor. | [Source](./src/printer.ts) |

     

       45
       45
        
       | `Kind` | The GraphQL.js’ `Kind` enum, containing supported `ASTNode` kinds. | [Source](./src/kind.ts) |

     

       46
       46
        
       | `GraphQLError` | `GraphQLError` stripped of source/location debugging. | [Source](./src/kind.ts) |

     

       47
       47
       +
       | `valueFromASTUntyped` | Coerces AST values into JS values. | [Source](./src/values.ts) |

     

       47
       48
        
       

     

       48
       49
        
       The stated goals of any reimplementation are:

     

       49
       50
        
       1. Not to implement any execution or type system parts of the GraphQL

+1 -1

package.json

···

       1
       1
        
       {

     

       2
       2
        
         "name": "@0no-co/graphql.web",

     

       3
       3
        
         "description": "A spec-compliant client-side GraphQL implementation",

     

       4
       4
       -
         "version": "0.1.2",

     

       4
       4
       +
         "version": "0.1.3",

     

       5
       5
        
         "author": "0no.co <hi@0no.co>",

     

       6
       6
        
         "source": "./src/index.ts",

     

       7
       7
        
         "main": "./dist/graphql.web",

src/index.ts

···

       4
       4
        
       export * from './parser';

     

       5
       5
        
       export * from './visitor';

     

       6
       6
        
       export * from './printer';

     

       7
       7
       +
       export * from './values';

+79

src/values.ts

···

       1
       1
       +
       import { TypeNode, ValueNode } from './ast';

     

       2
       2
       +
       import { Kind } from './kind';

     

       3
       3
       +
       import { Maybe } from './types';

     

       4
       4
       +
       

     

       5
       5
       +
       export function valueFromASTUntyped(

     

       6
       6
       +
         node: ValueNode,

     

       7
       7
       +
         variables?: Maybe<Record<string, any>>,

     

       8
       8
       +
       ): unknown {

     

       9
       9
       +
         switch (node.kind) {

     

       10
       10
       +
           case Kind.NULL:

     

       11
       11
       +
             return null;

     

       12
       12
       +
           case Kind.INT:

     

       13
       13
       +
             return parseInt(node.value, 10);

     

       14
       14
       +
           case Kind.FLOAT:

     

       15
       15
       +
             return parseFloat(node.value);

     

       16
       16
       +
           case Kind.STRING:

     

       17
       17
       +
           case Kind.ENUM:

     

       18
       18
       +
           case Kind.BOOLEAN:

     

       19
       19
       +
             return node.value;

     

       20
       20
       +
           case Kind.LIST: {

     

       21
       21
       +
             const values: unknown[] = [];

     

       22
       22
       +
             for (const value of node.values)

     

       23
       23
       +
               values.push(valueFromASTUntyped(value, variables));

     

       24
       24
       +
             return values;

     

       25
       25
       +
           }

     

       26
       26
       +
           case Kind.OBJECT: {

     

       27
       27
       +
             const obj = Object.create(null);

     

       28
       28
       +
             for (const field of node.fields)

     

       29
       29
       +
               obj[field.name.value] = valueFromASTUntyped(field.value, variables);

     

       30
       30
       +
             return obj;

     

       31
       31
       +
           }

     

       32
       32
       +
           case Kind.VARIABLE:

     

       33
       33
       +
             return variables && variables[node.name.value];

     

       34
       34
       +
         }

     

       35
       35
       +
       }

     

       36
       36
       +
       

     

       37
       37
       +
       export function valueFromTypeNode(

     

       38
       38
       +
         node: ValueNode,

     

       39
       39
       +
         type: TypeNode,

     

       40
       40
       +
         variables?: Maybe<Record<string, any>>,

     

       41
       41
       +
       ): unknown {

     

       42
       42
       +
         if (node.kind === Kind.VARIABLE) {

     

       43
       43
       +
           const variableName = node.name.value;

     

       44
       44
       +
           return variables

     

       45
       45
       +
             ? valueFromTypeNode(variables[variableName], type, variables)

     

       46
       46
       +
             : undefined;

     

       47
       47
       +
         } else if (type.kind === Kind.NON_NULL_TYPE) {

     

       48
       48
       +
           return node.kind !== Kind.NULL

     

       49
       49
       +
             ? valueFromTypeNode(node, type, variables)

     

       50
       50
       +
             : undefined

     

       51
       51
       +
         } else if (node.kind === Kind.NULL) {

     

       52
       52
       +
           return null;

     

       53
       53
       +
         } else if (type.kind === Kind.LIST_TYPE) {

     

       54
       54
       +
           if (node.kind === Kind.LIST) {

     

       55
       55
       +
             const values: unknown[] = [];

     

       56
       56
       +
             for (const value of node.values) {

     

       57
       57
       +
               const coerced = valueFromTypeNode(value, type.type, variables);

     

       58
       58
       +
               if (coerced === undefined) {

     

       59
       59
       +
                 return undefined;

     

       60
       60
       +
               } else {

     

       61
       61
       +
                 values.push(coerced);

     

       62
       62
       +
               }

     

       63
       63
       +
             }

     

       64
       64
       +
             return values;

     

       65
       65
       +
           }

     

       66
       66
       +
         } else if (type.kind === Kind.NAMED_TYPE) {

     

       67
       67
       +
           switch (type.name.value) {

     

       68
       68
       +
             case 'Int':

     

       69
       69
       +
             case 'Float':

     

       70
       70
       +
             case 'String':

     

       71
       71
       +
             case 'Bool':

     

       72
       72
       +
               return type.name.value + 'Value' === node.kind

     

       73
       73
       +
                 ? valueFromASTUntyped(node, variables)

     

       74
       74
       +
                 : undefined;

     

       75
       75
       +
             default:

     

       76
       76
       +
               return valueFromASTUntyped(node, variables);

     

       77
       77
       +
           }

     

       78
       78
       +
         }

     

       79
       79
       +
       }