1 | import * as o from '../output/output_ast';
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2 | import { R3CompiledExpression, R3Reference } from './util';
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3 | /**
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4 | * Metadata required by the factory generator to generate a `factory` function for a type.
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5 | */
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6 | export interface R3ConstructorFactoryMetadata {
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7 | /**
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8 | * String name of the type being generated (used to name the factory function).
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9 | */
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10 | name: string;
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11 | /**
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12 | * An expression representing the interface type being constructed.
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13 | */
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14 | type: R3Reference;
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15 | /**
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16 | * An expression representing the constructor type, intended for use within a class definition
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17 | * itself.
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18 | *
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19 | * This can differ from the outer `type` if the class is being compiled by ngcc and is inside
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20 | * an IIFE structure that uses a different name internally.
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21 | */
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22 | internalType: o.Expression;
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23 | /** Number of arguments for the `type`. */
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24 | typeArgumentCount: number;
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25 | /**
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26 | * Regardless of whether `fnOrClass` is a constructor function or a user-defined factory, it
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27 | * may have 0 or more parameters, which will be injected according to the `R3DependencyMetadata`
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28 | * for those parameters. If this is `null`, then the type's constructor is nonexistent and will
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29 | * be inherited from `fnOrClass` which is interpreted as the current type. If this is `'invalid'`,
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30 | * then one or more of the parameters wasn't resolvable and any attempt to use these deps will
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31 | * result in a runtime error.
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32 | */
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33 | deps: R3DependencyMetadata[] | 'invalid' | null;
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34 | /**
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35 | * Type of the target being created by the factory.
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36 | */
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37 | target: FactoryTarget;
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38 | }
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39 | export declare enum R3FactoryDelegateType {
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40 | Class = 0,
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41 | Function = 1
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42 | }
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43 | export interface R3DelegatedFnOrClassMetadata extends R3ConstructorFactoryMetadata {
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44 | delegate: o.Expression;
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45 | delegateType: R3FactoryDelegateType;
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46 | delegateDeps: R3DependencyMetadata[];
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47 | }
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48 | export interface R3ExpressionFactoryMetadata extends R3ConstructorFactoryMetadata {
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49 | expression: o.Expression;
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50 | }
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51 | export declare type R3FactoryMetadata = R3ConstructorFactoryMetadata | R3DelegatedFnOrClassMetadata | R3ExpressionFactoryMetadata;
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52 | export declare enum FactoryTarget {
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53 | Directive = 0,
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54 | Component = 1,
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55 | Injectable = 2,
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56 | Pipe = 3,
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57 | NgModule = 4
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58 | }
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59 | export interface R3DependencyMetadata {
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60 | /**
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61 | * An expression representing the token or value to be injected.
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62 | * Or `null` if the dependency could not be resolved - making it invalid.
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63 | */
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64 | token: o.Expression | null;
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65 | /**
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66 | * If an @Attribute decorator is present, this is the literal type of the attribute name, or
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67 | * the unknown type if no literal type is available (e.g. the attribute name is an expression).
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68 | * Otherwise it is null;
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69 | */
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70 | attributeNameType: o.Expression | null;
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71 | /**
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72 | * Whether the dependency has an @Host qualifier.
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73 | */
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74 | host: boolean;
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75 | /**
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76 | * Whether the dependency has an @Optional qualifier.
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77 | */
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78 | optional: boolean;
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79 | /**
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80 | * Whether the dependency has an @Self qualifier.
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81 | */
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82 | self: boolean;
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83 | /**
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84 | * Whether the dependency has an @SkipSelf qualifier.
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85 | */
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86 | skipSelf: boolean;
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87 | }
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88 | /**
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89 | * Construct a factory function expression for the given `R3FactoryMetadata`.
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90 | */
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91 | export declare function compileFactoryFunction(meta: R3FactoryMetadata): R3CompiledExpression;
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92 | export declare function createFactoryType(meta: R3FactoryMetadata): o.ExpressionType;
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93 | export declare function isDelegatedFactoryMetadata(meta: R3FactoryMetadata): meta is R3DelegatedFnOrClassMetadata;
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94 | export declare function isExpressionFactoryMetadata(meta: R3FactoryMetadata): meta is R3ExpressionFactoryMetadata;
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