1 files changed, 0 insertions, 284 deletions
diff --git a/node_modules/@babel/plugin-transform-parameters/lib/rest.js b/node_modules/@babel/plugin-transform-parameters/lib/rest.js
deleted file mode 100644
index 2ae054b1..00000000
--- a/node_modules/@babel/plugin-transform-parameters/lib/rest.js
+++ /dev/null
@@ -1,284 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = convertFunctionRest;
-var _core = require("@babel/core");
-var _shadowUtils = require("./shadow-utils.js");
-const buildRest = _core.template.statement(`
-  for (var LEN = ARGUMENTS.length,
-           ARRAY = new Array(ARRAY_LEN),
-           KEY = START;
-       KEY < LEN;
-       KEY++) {
-    ARRAY[ARRAY_KEY] = ARGUMENTS[KEY];
-  }
-`);
-const restIndex = _core.template.expression(`
-  (INDEX < OFFSET || ARGUMENTS.length <= INDEX) ? undefined : ARGUMENTS[INDEX]
-`);
-const restIndexImpure = _core.template.expression(`
-  REF = INDEX, (REF < OFFSET || ARGUMENTS.length <= REF) ? undefined : ARGUMENTS[REF]
-`);
-const restLength = _core.template.expression(`
-  ARGUMENTS.length <= OFFSET ? 0 : ARGUMENTS.length - OFFSET
-`);
-function referencesRest(path, state) {
-  if (path.node.name === state.name) {
-    return path.scope.bindingIdentifierEquals(state.name, state.outerBinding);
-  }
-  return false;
-}
-const memberExpressionOptimisationVisitor = {
-  Scope(path, state) {
-    if (!path.scope.bindingIdentifierEquals(state.name, state.outerBinding)) {
-      path.skip();
-    }
-  },
-  Flow(path) {
-    if (path.isTypeCastExpression()) return;
-    path.skip();
-  },
-  Function(path, state) {
-    const oldNoOptimise = state.noOptimise;
-    state.noOptimise = true;
-    path.traverse(memberExpressionOptimisationVisitor, state);
-    state.noOptimise = oldNoOptimise;
-    path.skip();
-  },
-  ReferencedIdentifier(path, state) {
-    const {
-      node
-    } = path;
-    if (node.name === "arguments") {
-      state.deopted = true;
-    }
-    if (!referencesRest(path, state)) return;
-    if (state.noOptimise) {
-      state.deopted = true;
-    } else {
-      const {
-        parentPath
-      } = path;
-      if (parentPath.listKey === "params" && parentPath.key < state.offset) {
-        return;
-      }
-      if (parentPath.isMemberExpression({
-        object: node
-      })) {
-        const grandparentPath = parentPath.parentPath;
-        const argsOptEligible = !state.deopted && !(grandparentPath.isAssignmentExpression() && parentPath.node === grandparentPath.node.left || grandparentPath.isLVal() || grandparentPath.isForXStatement() || grandparentPath.isUpdateExpression() || grandparentPath.isUnaryExpression({
-          operator: "delete"
-        }) || (grandparentPath.isCallExpression() || grandparentPath.isNewExpression()) && parentPath.node === grandparentPath.node.callee);
-        if (argsOptEligible) {
-          if (parentPath.node.computed) {
-            if (parentPath.get("property").isBaseType("number")) {
-              state.candidates.push({
-                cause: "indexGetter",
-                path
-              });
-              return;
-            }
-          } else if (parentPath.node.property.name === "length") {
-            state.candidates.push({
-              cause: "lengthGetter",
-              path
-            });
-            return;
-          }
-        }
-      }
-      if (state.offset === 0 && parentPath.isSpreadElement()) {
-        const call = parentPath.parentPath;
-        if (call.isCallExpression() && call.node.arguments.length === 1) {
-          state.candidates.push({
-            cause: "argSpread",
-            path
-          });
-          return;
-        }
-      }
-      state.references.push(path);
-    }
-  },
-  BindingIdentifier(path, state) {
-    if (referencesRest(path, state)) {
-      state.deopted = true;
-    }
-  }
-};
-function getParamsCount(node) {
-  let count = node.params.length;
-  if (count > 0 && _core.types.isIdentifier(node.params[0], {
-    name: "this"
-  })) {
-    count -= 1;
-  }
-  return count;
-}
-function hasRest(node) {
-  const length = node.params.length;
-  return length > 0 && _core.types.isRestElement(node.params[length - 1]);
-}
-function optimiseIndexGetter(path, argsId, offset) {
-  const offsetLiteral = _core.types.numericLiteral(offset);
-  let index;
-  const parent = path.parent;
-  if (_core.types.isNumericLiteral(parent.property)) {
-    index = _core.types.numericLiteral(parent.property.value + offset);
-  } else if (offset === 0) {
-    index = parent.property;
-  } else {
-    index = _core.types.binaryExpression("+", parent.property, _core.types.cloneNode(offsetLiteral));
-  }
-  const {
-    scope,
-    parentPath
-  } = path;
-  if (!scope.isPure(index)) {
-    const temp = scope.generateUidIdentifierBasedOnNode(index);
-    scope.push({
-      id: temp,
-      kind: "var"
-    });
-    parentPath.replaceWith(restIndexImpure({
-      ARGUMENTS: argsId,
-      OFFSET: offsetLiteral,
-      INDEX: index,
-      REF: _core.types.cloneNode(temp)
-    }));
-  } else {
-    parentPath.replaceWith(restIndex({
-      ARGUMENTS: argsId,
-      OFFSET: offsetLiteral,
-      INDEX: index
-    }));
-    const replacedParentPath = parentPath;
-    const offsetTestPath = replacedParentPath.get("test");
-    const valRes = offsetTestPath.get("left").evaluate();
-    if (valRes.confident) {
-      if (valRes.value === true) {
-        replacedParentPath.replaceWith(scope.buildUndefinedNode());
-      } else {
-        offsetTestPath.replaceWith(offsetTestPath.get("right"));
-      }
-    }
-  }
-}
-function optimiseLengthGetter(path, argsId, offset) {
-  if (offset) {
-    path.parentPath.replaceWith(restLength({
-      ARGUMENTS: argsId,
-      OFFSET: _core.types.numericLiteral(offset)
-    }));
-  } else {
-    path.replaceWith(argsId);
-  }
-}
-function convertFunctionRest(path) {
-  const {
-    node,
-    scope
-  } = path;
-  if (!hasRest(node)) return false;
-  const restPath = path.get(`params.${node.params.length - 1}.argument`);
-  if (!restPath.isIdentifier()) {
-    const shadowedParams = new Set();
-    (0, _shadowUtils.collectShadowedParamsNames)(restPath, path.scope, shadowedParams);
-    let needsIIFE = shadowedParams.size > 0;
-    if (!needsIIFE) {
-      const state = {
-        needsOuterBinding: false,
-        scope
-      };
-      restPath.traverse(_shadowUtils.iifeVisitor, state);
-      needsIIFE = state.needsOuterBinding;
-    }
-    if (needsIIFE) {
-      path.ensureBlock();
-      path.set("body", _core.types.blockStatement([(0, _shadowUtils.buildScopeIIFE)(shadowedParams, path.node.body)]));
-    }
-  }
-  let rest = restPath.node;
-  node.params.pop();
-  if (_core.types.isPattern(rest)) {
-    const pattern = rest;
-    rest = scope.generateUidIdentifier("ref");
-    const declar = _core.types.variableDeclaration("let", [_core.types.variableDeclarator(pattern, rest)]);
-    path.ensureBlock();
-    node.body.body.unshift(declar);
-  } else if (rest.name === "arguments") {
-    scope.rename(rest.name);
-  }
-  const argsId = _core.types.identifier("arguments");
-  const paramsCount = getParamsCount(node);
-  const state = {
-    references: [],
-    offset: paramsCount,
-    argumentsNode: argsId,
-    outerBinding: scope.getBindingIdentifier(rest.name),
-    candidates: [],
-    name: rest.name,
-    deopted: false
-  };
-  path.traverse(memberExpressionOptimisationVisitor, state);
-  if (!state.deopted && !state.references.length) {
-    for (const {
-      path,
-      cause
-    } of state.candidates) {
-      const clonedArgsId = _core.types.cloneNode(argsId);
-      switch (cause) {
-        case "indexGetter":
-          optimiseIndexGetter(path, clonedArgsId, state.offset);
-          break;
-        case "lengthGetter":
-          optimiseLengthGetter(path, clonedArgsId, state.offset);
-          break;
-        default:
-          path.replaceWith(clonedArgsId);
-      }
-    }
-    return true;
-  }
-  state.references.push(...state.candidates.map(({
-    path
-  }) => path));
-  const start = _core.types.numericLiteral(paramsCount);
-  const key = scope.generateUidIdentifier("key");
-  const len = scope.generateUidIdentifier("len");
-  let arrKey, arrLen;
-  if (paramsCount) {
-    arrKey = _core.types.binaryExpression("-", _core.types.cloneNode(key), _core.types.cloneNode(start));
-    arrLen = _core.types.conditionalExpression(_core.types.binaryExpression(">", _core.types.cloneNode(len), _core.types.cloneNode(start)), _core.types.binaryExpression("-", _core.types.cloneNode(len), _core.types.cloneNode(start)), _core.types.numericLiteral(0));
-  } else {
-    arrKey = _core.types.identifier(key.name);
-    arrLen = _core.types.identifier(len.name);
-  }
-  const loop = buildRest({
-    ARGUMENTS: argsId,
-    ARRAY_KEY: arrKey,
-    ARRAY_LEN: arrLen,
-    START: start,
-    ARRAY: rest,
-    KEY: key,
-    LEN: len
-  });
-  if (state.deopted) {
-    node.body.body.unshift(loop);
-  } else {
-    let target = path.getEarliestCommonAncestorFrom(state.references).getStatementParent();
-    target.findParent(path => {
-      if (path.isLoop()) {
-        target = path;
-      } else {
-        return path.isFunction();
-      }
-    });
-    target.insertBefore(loop);
-  }
-  return true;
-}
-
-//# sourceMappingURL=rest.js.map