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							159 lines
						
					
					
						
							5.4 KiB
						
					
					
				
			
		
		
	
	
							159 lines
						
					
					
						
							5.4 KiB
						
					
					
				"use strict";
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Object.defineProperty(exports, "__esModule", {
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  value: true
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});
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exports.default = void 0;
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var _core = require("@babel/core");
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var _helperPluginUtils = require("@babel/helper-plugin-utils");
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var _template = require("@babel/template");
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const DefineAccessorHelper = _template.default.expression.ast`
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function (type, obj, key, fn) {
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  var desc = { configurable: true, enumerable: true };
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  desc[type] = fn;
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  return Object.defineProperty(obj, key, desc);
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}`;
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DefineAccessorHelper._compact = true;
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var _default = (0, _helperPluginUtils.declare)((api, options) => {
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  var _api$assumption;
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  api.assertVersion(7);
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  const setComputedProperties = (_api$assumption = api.assumption("setComputedProperties")) != null ? _api$assumption : options.loose;
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  const pushComputedProps = setComputedProperties ? pushComputedPropsLoose : pushComputedPropsSpec;
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  function buildDefineAccessor(state, type, obj, key, fn) {
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    let helper;
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    if (state.availableHelper("defineAccessor")) {
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      helper = state.addHelper("defineAccessor");
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    } else {
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      const file = state.file;
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      helper = file.get("fallbackDefineAccessorHelper");
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      if (!helper) {
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        const id = file.scope.generateUidIdentifier("defineAccessor");
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        file.scope.push({
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          id,
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          init: DefineAccessorHelper
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        });
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        file.set("fallbackDefineAccessorHelper", helper = id);
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      }
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      helper = _core.types.cloneNode(helper);
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    }
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    return _core.types.callExpression(helper, [_core.types.stringLiteral(type), obj, key, fn]);
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  }
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  function getValue(prop) {
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    if (_core.types.isObjectProperty(prop)) {
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      return prop.value;
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    } else if (_core.types.isObjectMethod(prop)) {
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      return _core.types.functionExpression(null, prop.params, prop.body, prop.generator, prop.async);
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    }
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  }
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  function pushAssign(objId, prop, body) {
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    body.push(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.memberExpression(_core.types.cloneNode(objId), prop.key, prop.computed || _core.types.isLiteral(prop.key)), getValue(prop))));
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  }
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  function pushAccessorDefine({
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    body,
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    computedProps,
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    initPropExpression,
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    objId,
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    state
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  }, prop) {
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    const kind = prop.kind;
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    const key = !prop.computed && _core.types.isIdentifier(prop.key) ? _core.types.stringLiteral(prop.key.name) : prop.key;
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    const value = getValue(prop);
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    if (computedProps.length === 1) {
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      return buildDefineAccessor(state, kind, initPropExpression, key, value);
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    } else {
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      body.push(_core.types.expressionStatement(buildDefineAccessor(state, kind, _core.types.cloneNode(objId), key, value)));
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    }
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  }
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  function pushComputedPropsLoose(info) {
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    for (const prop of info.computedProps) {
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      if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
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        const single = pushAccessorDefine(info, prop);
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        if (single) return single;
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      } else {
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        pushAssign(_core.types.cloneNode(info.objId), prop, info.body);
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      }
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    }
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  }
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  function pushComputedPropsSpec(info) {
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    const {
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      objId,
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      body,
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      computedProps,
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      state
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    } = info;
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    for (const prop of computedProps) {
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      const key = _core.types.toComputedKey(prop);
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      if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
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        const single = pushAccessorDefine(info, prop);
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        if (single) return single;
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      } else {
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        const value = getValue(prop);
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        if (computedProps.length === 1) {
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          return _core.types.callExpression(state.addHelper("defineProperty"), [info.initPropExpression, key, value]);
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        } else {
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          body.push(_core.types.expressionStatement(_core.types.callExpression(state.addHelper("defineProperty"), [_core.types.cloneNode(objId), key, value])));
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        }
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      }
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    }
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  }
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  return {
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    name: "transform-computed-properties",
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    visitor: {
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      ObjectExpression: {
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        exit(path, state) {
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          const {
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            node,
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            parent,
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            scope
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          } = path;
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          let hasComputed = false;
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          for (const prop of node.properties) {
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            hasComputed = prop.computed === true;
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            if (hasComputed) break;
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          }
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          if (!hasComputed) return;
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          const initProps = [];
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          const computedProps = [];
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          let foundComputed = false;
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          for (const prop of node.properties) {
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            if (_core.types.isSpreadElement(prop)) {
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              continue;
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            }
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            if (prop.computed) {
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              foundComputed = true;
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            }
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            if (foundComputed) {
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              computedProps.push(prop);
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            } else {
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              initProps.push(prop);
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            }
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          }
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          const objId = scope.generateUidIdentifierBasedOnNode(parent);
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          const initPropExpression = _core.types.objectExpression(initProps);
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          const body = [];
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          body.push(_core.types.variableDeclaration("var", [_core.types.variableDeclarator(objId, initPropExpression)]));
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          const single = pushComputedProps({
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            scope,
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            objId,
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            body,
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            computedProps,
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            initPropExpression,
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            state
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          });
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          if (single) {
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            path.replaceWith(single);
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          } else {
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            body.push(_core.types.expressionStatement(_core.types.cloneNode(objId)));
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            path.replaceWithMultiple(body);
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          }
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        }
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      }
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    }
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  };
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});
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exports.default = _default;
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//# sourceMappingURL=index.js.map
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