41 lines
1.0 KiB
JavaScript
41 lines
1.0 KiB
JavaScript
/// <reference types="./case-node.d.ts" />
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import { freeze } from '../util/object-utils.js';
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import { WhenNode } from './when-node.js';
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/**
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* @internal
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*/
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export const CaseNode = freeze({
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is(node) {
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return node.kind === 'CaseNode';
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},
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create(value) {
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return freeze({
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kind: 'CaseNode',
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value,
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});
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},
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cloneWithWhen(caseNode, when) {
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return freeze({
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...caseNode,
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when: freeze(caseNode.when ? [...caseNode.when, when] : [when]),
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});
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},
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cloneWithThen(caseNode, then) {
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return freeze({
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...caseNode,
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when: caseNode.when
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? freeze([
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...caseNode.when.slice(0, -1),
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WhenNode.cloneWithResult(caseNode.when[caseNode.when.length - 1], then),
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])
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: undefined,
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});
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},
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cloneWith(caseNode, props) {
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return freeze({
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...caseNode,
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...props,
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});
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},
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});
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