253 lines
6.9 KiB
JavaScript
253 lines
6.9 KiB
JavaScript
import * as Equal from "../Equal.js";
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import { dual } from "../Function.js";
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import { globalValue } from "../GlobalValue.js";
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import * as Hash from "../Hash.js";
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import { format, NodeInspectSymbol, toJSON } from "../Inspectable.js";
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import { pipeArguments } from "../Pipeable.js";
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import { hasProperty } from "../Predicate.js";
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import { EffectPrototype, effectVariance } from "./effectable.js";
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import * as option from "./option.js";
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/** @internal */
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export const TagTypeId = /*#__PURE__*/Symbol.for("effect/Context/Tag");
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/** @internal */
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export const ReferenceTypeId = /*#__PURE__*/Symbol.for("effect/Context/Reference");
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/** @internal */
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const STMSymbolKey = "effect/STM";
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/** @internal */
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export const STMTypeId = /*#__PURE__*/Symbol.for(STMSymbolKey);
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/** @internal */
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export const TagProto = {
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...EffectPrototype,
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_op: "Tag",
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[STMTypeId]: effectVariance,
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[TagTypeId]: {
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_Service: _ => _,
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_Identifier: _ => _
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},
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toString() {
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return format(this.toJSON());
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},
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toJSON() {
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return {
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_id: "Tag",
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key: this.key,
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stack: this.stack
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};
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},
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[NodeInspectSymbol]() {
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return this.toJSON();
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},
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of(self) {
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return self;
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},
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context(self) {
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return make(this, self);
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}
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};
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export const ReferenceProto = {
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...TagProto,
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[ReferenceTypeId]: ReferenceTypeId
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};
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/** @internal */
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export const makeGenericTag = key => {
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const limit = Error.stackTraceLimit;
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Error.stackTraceLimit = 2;
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const creationError = new Error();
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Error.stackTraceLimit = limit;
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const tag = Object.create(TagProto);
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Object.defineProperty(tag, "stack", {
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get() {
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return creationError.stack;
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}
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});
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tag.key = key;
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return tag;
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};
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/** @internal */
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export const Tag = id => () => {
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const limit = Error.stackTraceLimit;
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Error.stackTraceLimit = 2;
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const creationError = new Error();
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Error.stackTraceLimit = limit;
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function TagClass() {}
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Object.setPrototypeOf(TagClass, TagProto);
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TagClass.key = id;
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Object.defineProperty(TagClass, "stack", {
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get() {
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return creationError.stack;
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}
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});
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return TagClass;
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};
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/** @internal */
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export const Reference = () => (id, options) => {
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const limit = Error.stackTraceLimit;
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Error.stackTraceLimit = 2;
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const creationError = new Error();
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Error.stackTraceLimit = limit;
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function ReferenceClass() {}
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Object.setPrototypeOf(ReferenceClass, ReferenceProto);
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ReferenceClass.key = id;
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ReferenceClass.defaultValue = options.defaultValue;
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Object.defineProperty(ReferenceClass, "stack", {
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get() {
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return creationError.stack;
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}
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});
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return ReferenceClass;
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};
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/** @internal */
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export const TypeId = /*#__PURE__*/Symbol.for("effect/Context");
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/** @internal */
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export const ContextProto = {
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[TypeId]: {
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_Services: _ => _
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},
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[Equal.symbol](that) {
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if (isContext(that)) {
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if (this.unsafeMap.size === that.unsafeMap.size) {
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for (const k of this.unsafeMap.keys()) {
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if (!that.unsafeMap.has(k) || !Equal.equals(this.unsafeMap.get(k), that.unsafeMap.get(k))) {
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return false;
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}
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}
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return true;
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}
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}
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return false;
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},
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[Hash.symbol]() {
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return Hash.cached(this, Hash.number(this.unsafeMap.size));
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},
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pipe() {
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return pipeArguments(this, arguments);
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},
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toString() {
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return format(this.toJSON());
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},
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toJSON() {
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return {
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_id: "Context",
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services: Array.from(this.unsafeMap).map(toJSON)
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};
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},
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[NodeInspectSymbol]() {
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return this.toJSON();
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}
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};
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/** @internal */
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export const makeContext = unsafeMap => {
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const context = Object.create(ContextProto);
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context.unsafeMap = unsafeMap;
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return context;
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};
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const serviceNotFoundError = tag => {
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const error = new Error(`Service not found${tag.key ? `: ${String(tag.key)}` : ""}`);
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if (tag.stack) {
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const lines = tag.stack.split("\n");
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if (lines.length > 2) {
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const afterAt = lines[2].match(/at (.*)/);
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if (afterAt) {
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error.message = error.message + ` (defined at ${afterAt[1]})`;
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}
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}
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}
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if (error.stack) {
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const lines = error.stack.split("\n");
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lines.splice(1, 3);
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error.stack = lines.join("\n");
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}
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return error;
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};
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/** @internal */
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export const isContext = u => hasProperty(u, TypeId);
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/** @internal */
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export const isTag = u => hasProperty(u, TagTypeId);
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/** @internal */
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export const isReference = u => hasProperty(u, ReferenceTypeId);
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const _empty = /*#__PURE__*/makeContext(/*#__PURE__*/new Map());
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/** @internal */
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export const empty = () => _empty;
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/** @internal */
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export const make = (tag, service) => makeContext(new Map([[tag.key, service]]));
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/** @internal */
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export const add = /*#__PURE__*/dual(3, (self, tag, service) => {
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const map = new Map(self.unsafeMap);
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map.set(tag.key, service);
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return makeContext(map);
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});
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const defaultValueCache = /*#__PURE__*/globalValue("effect/Context/defaultValueCache", () => new Map());
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const getDefaultValue = tag => {
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if (defaultValueCache.has(tag.key)) {
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return defaultValueCache.get(tag.key);
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}
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const value = tag.defaultValue();
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defaultValueCache.set(tag.key, value);
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return value;
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};
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/** @internal */
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export const unsafeGetReference = (self, tag) => {
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return self.unsafeMap.has(tag.key) ? self.unsafeMap.get(tag.key) : getDefaultValue(tag);
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};
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/** @internal */
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export const unsafeGet = /*#__PURE__*/dual(2, (self, tag) => {
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if (!self.unsafeMap.has(tag.key)) {
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if (ReferenceTypeId in tag) return getDefaultValue(tag);
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throw serviceNotFoundError(tag);
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}
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return self.unsafeMap.get(tag.key);
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});
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/** @internal */
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export const get = unsafeGet;
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/** @internal */
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export const getOrElse = /*#__PURE__*/dual(3, (self, tag, orElse) => {
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if (!self.unsafeMap.has(tag.key)) {
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return isReference(tag) ? getDefaultValue(tag) : orElse();
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}
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return self.unsafeMap.get(tag.key);
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});
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/** @internal */
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export const getOption = /*#__PURE__*/dual(2, (self, tag) => {
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if (!self.unsafeMap.has(tag.key)) {
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return isReference(tag) ? option.some(getDefaultValue(tag)) : option.none;
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}
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return option.some(self.unsafeMap.get(tag.key));
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});
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/** @internal */
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export const merge = /*#__PURE__*/dual(2, (self, that) => {
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const map = new Map(self.unsafeMap);
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for (const [tag, s] of that.unsafeMap) {
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map.set(tag, s);
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}
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return makeContext(map);
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});
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/** @internal */
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export const mergeAll = (...ctxs) => {
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const map = new Map();
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for (const ctx of ctxs) {
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for (const [tag, s] of ctx.unsafeMap) {
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map.set(tag, s);
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}
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}
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return makeContext(map);
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};
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/** @internal */
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export const pick = (...tags) => self => {
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const tagSet = new Set(tags.map(_ => _.key));
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const newEnv = new Map();
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for (const [tag, s] of self.unsafeMap.entries()) {
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if (tagSet.has(tag)) {
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newEnv.set(tag, s);
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}
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}
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return makeContext(newEnv);
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};
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/** @internal */
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export const omit = (...tags) => self => {
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const newEnv = new Map(self.unsafeMap);
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for (const tag of tags) {
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newEnv.delete(tag.key);
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}
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return makeContext(newEnv);
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};
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//# sourceMappingURL=context.js.map
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