168 lines
		
	
	
		
			5.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			168 lines
		
	
	
		
			5.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| "use strict";
 | |
| 
 | |
| Object.defineProperty(exports, "__esModule", {
 | |
|   value: true
 | |
| });
 | |
| exports.default = void 0;
 | |
| var _helperPluginUtils = require("@babel/helper-plugin-utils");
 | |
| var _helperSkipTransparentExpressionWrappers = require("@babel/helper-skip-transparent-expression-wrappers");
 | |
| var _core = require("@babel/core");
 | |
| var _default = exports.default = (0, _helperPluginUtils.declare)((api, options) => {
 | |
|   var _api$assumption, _options$allowArrayLi;
 | |
|   api.assertVersion(7);
 | |
|   const iterableIsArray = (_api$assumption = api.assumption("iterableIsArray")) != null ? _api$assumption : options.loose;
 | |
|   const arrayLikeIsIterable = (_options$allowArrayLi = options.allowArrayLike) != null ? _options$allowArrayLi : api.assumption("arrayLikeIsIterable");
 | |
|   function getSpreadLiteral(spread, scope) {
 | |
|     if (iterableIsArray && !_core.types.isIdentifier(spread.argument, {
 | |
|       name: "arguments"
 | |
|     })) {
 | |
|       return spread.argument;
 | |
|     } else {
 | |
|       const node = spread.argument;
 | |
|       if (_core.types.isIdentifier(node)) {
 | |
|         const binding = scope.getBinding(node.name);
 | |
|         if (binding != null && binding.constant && binding.path.isGenericType("Array")) {
 | |
|           return node;
 | |
|         }
 | |
|       }
 | |
|       if (_core.types.isArrayExpression(node)) {
 | |
|         return node;
 | |
|       }
 | |
|       if (_core.types.isIdentifier(node, {
 | |
|         name: "arguments"
 | |
|       })) {
 | |
|         return _core.template.expression.ast`
 | |
|           Array.prototype.slice.call(${node})
 | |
|         `;
 | |
|       }
 | |
|       const args = [node];
 | |
|       let helperName = "toConsumableArray";
 | |
|       if (arrayLikeIsIterable) {
 | |
|         args.unshift(scope.path.hub.addHelper(helperName));
 | |
|         helperName = "maybeArrayLike";
 | |
|       }
 | |
|       return _core.types.callExpression(scope.path.hub.addHelper(helperName), args);
 | |
|     }
 | |
|   }
 | |
|   function hasHole(spread) {
 | |
|     return spread.elements.includes(null);
 | |
|   }
 | |
|   function hasSpread(nodes) {
 | |
|     for (let i = 0; i < nodes.length; i++) {
 | |
|       if (_core.types.isSpreadElement(nodes[i])) {
 | |
|         return true;
 | |
|       }
 | |
|     }
 | |
|     return false;
 | |
|   }
 | |
|   function push(_props, nodes) {
 | |
|     if (!_props.length) return _props;
 | |
|     nodes.push(_core.types.arrayExpression(_props));
 | |
|     return [];
 | |
|   }
 | |
|   function build(props, scope, file) {
 | |
|     const nodes = [];
 | |
|     let _props = [];
 | |
|     for (const prop of props) {
 | |
|       if (_core.types.isSpreadElement(prop)) {
 | |
|         _props = push(_props, nodes);
 | |
|         let spreadLiteral = getSpreadLiteral(prop, scope);
 | |
|         if (_core.types.isArrayExpression(spreadLiteral) && hasHole(spreadLiteral)) {
 | |
|           spreadLiteral = _core.types.callExpression(file.addHelper("arrayWithoutHoles"), [spreadLiteral]);
 | |
|         }
 | |
|         nodes.push(spreadLiteral);
 | |
|       } else {
 | |
|         _props.push(prop);
 | |
|       }
 | |
|     }
 | |
|     push(_props, nodes);
 | |
|     return nodes;
 | |
|   }
 | |
|   return {
 | |
|     name: "transform-spread",
 | |
|     visitor: {
 | |
|       ArrayExpression(path) {
 | |
|         const {
 | |
|           node,
 | |
|           scope
 | |
|         } = path;
 | |
|         const elements = node.elements;
 | |
|         if (!hasSpread(elements)) return;
 | |
|         const nodes = build(elements, scope, this.file);
 | |
|         let first = nodes[0];
 | |
|         if (nodes.length === 1 && first !== elements[0].argument) {
 | |
|           path.replaceWith(first);
 | |
|           return;
 | |
|         }
 | |
|         if (!_core.types.isArrayExpression(first)) {
 | |
|           first = _core.types.arrayExpression([]);
 | |
|         } else {
 | |
|           nodes.shift();
 | |
|         }
 | |
|         path.replaceWith(_core.types.callExpression(_core.types.memberExpression(first, _core.types.identifier("concat")), nodes));
 | |
|       },
 | |
|       CallExpression(path) {
 | |
|         const {
 | |
|           node,
 | |
|           scope
 | |
|         } = path;
 | |
|         const args = node.arguments;
 | |
|         if (!hasSpread(args)) return;
 | |
|         const calleePath = (0, _helperSkipTransparentExpressionWrappers.skipTransparentExprWrappers)(path.get("callee"));
 | |
|         if (calleePath.isSuper()) {
 | |
|           throw path.buildCodeFrameError("It's not possible to compile spread arguments in `super()` without compiling classes.\n" + "Please add '@babel/plugin-transform-classes' to your Babel configuration.");
 | |
|         }
 | |
|         let contextLiteral = scope.buildUndefinedNode();
 | |
|         node.arguments = [];
 | |
|         let nodes;
 | |
|         if (args.length === 1 && _core.types.isIdentifier(args[0].argument, {
 | |
|           name: "arguments"
 | |
|         })) {
 | |
|           nodes = [args[0].argument];
 | |
|         } else {
 | |
|           nodes = build(args, scope, this.file);
 | |
|         }
 | |
|         const first = nodes.shift();
 | |
|         if (nodes.length) {
 | |
|           node.arguments.push(_core.types.callExpression(_core.types.memberExpression(first, _core.types.identifier("concat")), nodes));
 | |
|         } else {
 | |
|           node.arguments.push(first);
 | |
|         }
 | |
|         const callee = calleePath.node;
 | |
|         if (_core.types.isMemberExpression(callee)) {
 | |
|           const temp = scope.maybeGenerateMemoised(callee.object);
 | |
|           if (temp) {
 | |
|             callee.object = _core.types.assignmentExpression("=", temp, callee.object);
 | |
|             contextLiteral = temp;
 | |
|           } else {
 | |
|             contextLiteral = _core.types.cloneNode(callee.object);
 | |
|           }
 | |
|         }
 | |
|         node.callee = _core.types.memberExpression(node.callee, _core.types.identifier("apply"));
 | |
|         if (_core.types.isSuper(contextLiteral)) {
 | |
|           contextLiteral = _core.types.thisExpression();
 | |
|         }
 | |
|         node.arguments.unshift(_core.types.cloneNode(contextLiteral));
 | |
|       },
 | |
|       NewExpression(path) {
 | |
|         const {
 | |
|           node,
 | |
|           scope
 | |
|         } = path;
 | |
|         if (!hasSpread(node.arguments)) return;
 | |
|         const nodes = build(node.arguments, scope, this.file);
 | |
|         const first = nodes.shift();
 | |
|         let args;
 | |
|         if (nodes.length) {
 | |
|           args = _core.types.callExpression(_core.types.memberExpression(first, _core.types.identifier("concat")), nodes);
 | |
|         } else {
 | |
|           args = first;
 | |
|         }
 | |
|         path.replaceWith(_core.types.callExpression(path.hub.addHelper("construct"), [node.callee, args]));
 | |
|       }
 | |
|     }
 | |
|   };
 | |
| });
 | |
| 
 | |
| //# sourceMappingURL=index.js.map
 |