commit c4e386620ebbcb792b54376c410a9d353b6437ce · kitten.sh/graphql.web

README.md

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

     

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

     

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

     

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       The stated goals of any reimplementation are:

     

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

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

     

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

     

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

     

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

     

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       The stated goals of any reimplementation are:

     

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

+1 -1

package.json

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       {

     

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

     

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

     

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         "version": "0.1.2",

     

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

     

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

     

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

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       {

     

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

     

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

     

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         "version": "0.1.3",

     

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

     

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

     

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

src/index.ts

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       export * from './parser';

     

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       export * from './visitor';

     

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       export * from './printer';

     

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       export * from './parser';

     

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       export * from './visitor';

     

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       export * from './printer';

     

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       export * from './values';

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src/values.ts

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

     

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       import { Kind } from './kind';

     

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       import { Maybe } from './types';

     

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       export function valueFromASTUntyped(

     

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         node: ValueNode,

     

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

     

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       ): unknown {

     

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         switch (node.kind) {

     

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           case Kind.NULL:

     

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             return null;

     

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           case Kind.INT:

     

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             return parseInt(node.value, 10);

     

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           case Kind.FLOAT:

     

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             return parseFloat(node.value);

     

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           case Kind.STRING:

     

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           case Kind.ENUM:

     

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           case Kind.BOOLEAN:

     

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             return node.value;

     

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           case Kind.LIST: {

     

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             const values: unknown[] = [];

     

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             for (const value of node.values)

     

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

     

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             return values;

     

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           }

     

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           case Kind.OBJECT: {

     

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             const obj = Object.create(null);

     

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             for (const field of node.fields)

     

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

     

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             return obj;

     

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           }

     

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           case Kind.VARIABLE:

     

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

     

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         }

     

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       }

     

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       export function valueFromTypeNode(

     

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         node: ValueNode,

     

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         type: TypeNode,

     

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

     

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       ): unknown {

     

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

     

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           const variableName = node.name.value;

     

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           return variables

     

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

     

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             : undefined;

     

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

     

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           return node.kind !== Kind.NULL

     

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             ? valueFromTypeNode(node, type, variables)

     

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             : undefined

     

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

     

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           return null;

     

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

     

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

     

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             const values: unknown[] = [];

     

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             for (const value of node.values) {

     

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

     

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               if (coerced === undefined) {

     

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                 return undefined;

     

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               } else {

     

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                 values.push(coerced);

     

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               }

     

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             }

     

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             return values;

     

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           }

     

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

     

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           switch (type.name.value) {

     

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             case 'Int':

     

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             case 'Float':

     

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             case 'String':

     

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             case 'Bool':

     

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

     

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                 ? valueFromASTUntyped(node, variables)

     

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                 : undefined;

     

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             default:

     

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               return valueFromASTUntyped(node, variables);

     

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           }

     

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         }

     

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       }