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95 lines
3.5 KiB
TypeScript
95 lines
3.5 KiB
TypeScript
// Loaded from https://deno.land/x/dnit@dnit-v1.11.0/adl-gen/runtime/adl.ts
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import type * as AST from "./sys/adlast.ts";
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import type * as utils from "./utils.ts";
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export type ScopedName = AST.ScopedName;
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export type ScopedDecl = AST.ScopedDecl;
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export type ATypeRef<_T> = {value: AST.TypeRef};
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export type ATypeExpr<_T> = {value : AST.TypeExpr};
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/**
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* A function to obtain details on a declared type.
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*/
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export interface DeclResolver {
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(decl : AST.ScopedName): AST.ScopedDecl;
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};
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export function declResolver(...astMaps : ({[key:string] : AST.ScopedDecl})[]) {
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const astMap : {[key:string] : AST.ScopedDecl} = {};
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for (let map of astMaps) {
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for (let scopedName in map) {
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astMap[scopedName] = map[scopedName];
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}
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}
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function resolver(scopedName : AST.ScopedName) : AST.ScopedDecl {
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const scopedNameStr = scopedName.moduleName + "." + scopedName.name;
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const result = astMap[scopedNameStr];
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if (result === undefined) {
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throw new Error("Unable to resolve ADL type " + scopedNameStr);
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}
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return result;
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}
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return resolver;
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}
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type Unknown = {} | null;
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type Json = {} | null;
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/* Type expressions for primitive types */
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function texprPrimitive(ptype: string): ATypeExpr<Unknown> {
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return {
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value: {
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typeRef: { kind: "primitive", value: ptype },
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parameters: []
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}
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};
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};
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function texprPrimitive1(ptype: string, etype: ATypeExpr<Unknown>): ATypeExpr<Unknown> {
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return {
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value: {
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typeRef: { kind: "primitive", value: ptype },
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parameters: [etype.value]
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}
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};
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};
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export function texprVoid() : ATypeExpr<null> {return texprPrimitive("Void");}
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export function texprBool() : ATypeExpr<boolean> {return texprPrimitive("Bool");}
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export function texprInt8() : ATypeExpr<number> {return texprPrimitive("Int8");}
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export function texprInt16() : ATypeExpr<number> {return texprPrimitive("Int16");}
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export function texprInt32() : ATypeExpr<number> {return texprPrimitive("Int32");}
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export function texprInt64() : ATypeExpr<number> {return texprPrimitive("Int64");}
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export function texprWord8() : ATypeExpr<number> {return texprPrimitive("Word8");}
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export function texprWord16() : ATypeExpr<number> {return texprPrimitive("Word16");}
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export function texprWord32() : ATypeExpr<number> {return texprPrimitive("Word32");}
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export function texprWord64() : ATypeExpr<number> {return texprPrimitive("Word64");}
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export function texprFloat() : ATypeExpr<number> {return texprPrimitive("Float");}
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export function texprDouble() : ATypeExpr<number> {return texprPrimitive("Double");}
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export function texprJson() : ATypeExpr<Json> {return texprPrimitive("Json");}
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export function texprByteVector() : ATypeExpr<Uint8Array> {return texprPrimitive("ByteVector");}
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export function texprString() : ATypeExpr<string> {return texprPrimitive("String");}
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export function texprVector<T>(etype: ATypeExpr<T>) : ATypeExpr<T[]> {
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return texprPrimitive1("Vector", etype);
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}
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export function texprStringMap<T>(etype: ATypeExpr<T>) : ATypeExpr<{[key:string]:T}> {
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return texprPrimitive1("StringMap", etype);
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}
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export function texprNullable<T>(etype: ATypeExpr<T>) : ATypeExpr<T|null> {
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return texprPrimitive1("Nullable", etype);
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}
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// "Flavoured" nominal typing.
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// https://spin.atomicobject.com/2018/01/15/typescript-flexible-nominal-typing/
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export type Flavored0<A, Name> = utils.Flavored0<A, Name>;
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export type Flavored1<A, Name, T> = utils.Flavored1<A, Name, T>;
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export type Flavored2<A, Name, T,U> = utils.Flavored2<A, Name, T,U>;
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export type Flavored3<A, Name, T,U,V> = utils.Flavored3<A, Name, T,U,V>;
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