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Diffstat (limited to 'node_modules/regenerator-transform/src/leap.js')
| -rw-r--r-- | node_modules/regenerator-transform/src/leap.js | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/node_modules/regenerator-transform/src/leap.js b/node_modules/regenerator-transform/src/leap.js deleted file mode 100644 index afbcda04..00000000 --- a/node_modules/regenerator-transform/src/leap.js +++ /dev/null @@ -1,179 +0,0 @@ -/** - * Copyright (c) 2014-present, Facebook, Inc. - * - * This source code is licensed under the MIT license found in the - * LICENSE file in the root directory of this source tree. - */ - -import assert from "assert"; -import { Emitter } from "./emit"; -import { inherits } from "util"; -import { getTypes } from "./util"; - -function Entry() { - assert.ok(this instanceof Entry); -} - -function FunctionEntry(returnLoc) { - Entry.call(this); - getTypes().assertLiteral(returnLoc); - this.returnLoc = returnLoc; -} - -inherits(FunctionEntry, Entry); -exports.FunctionEntry = FunctionEntry; - -function LoopEntry(breakLoc, continueLoc, label) { - Entry.call(this); - - const t = getTypes(); - - t.assertLiteral(breakLoc); - t.assertLiteral(continueLoc); - - if (label) { - t.assertIdentifier(label); - } else { - label = null; - } - - this.breakLoc = breakLoc; - this.continueLoc = continueLoc; - this.label = label; -} - -inherits(LoopEntry, Entry); -exports.LoopEntry = LoopEntry; - -function SwitchEntry(breakLoc) { - Entry.call(this); - getTypes().assertLiteral(breakLoc); - this.breakLoc = breakLoc; -} - -inherits(SwitchEntry, Entry); -exports.SwitchEntry = SwitchEntry; - -function TryEntry(firstLoc, catchEntry, finallyEntry) { - Entry.call(this); - - const t = getTypes(); - t.assertLiteral(firstLoc); - - if (catchEntry) { - assert.ok(catchEntry instanceof CatchEntry); - } else { - catchEntry = null; - } - - if (finallyEntry) { - assert.ok(finallyEntry instanceof FinallyEntry); - } else { - finallyEntry = null; - } - - // Have to have one or the other (or both). - assert.ok(catchEntry || finallyEntry); - - this.firstLoc = firstLoc; - this.catchEntry = catchEntry; - this.finallyEntry = finallyEntry; -} - -inherits(TryEntry, Entry); -exports.TryEntry = TryEntry; - -function CatchEntry(firstLoc, paramId) { - Entry.call(this); - - const t = getTypes(); - - t.assertLiteral(firstLoc); - t.assertIdentifier(paramId); - - this.firstLoc = firstLoc; - this.paramId = paramId; -} - -inherits(CatchEntry, Entry); -exports.CatchEntry = CatchEntry; - -function FinallyEntry(firstLoc, afterLoc) { - Entry.call(this); - const t = getTypes(); - t.assertLiteral(firstLoc); - t.assertLiteral(afterLoc); - this.firstLoc = firstLoc; - this.afterLoc = afterLoc; -} - -inherits(FinallyEntry, Entry); -exports.FinallyEntry = FinallyEntry; - -function LabeledEntry(breakLoc, label) { - Entry.call(this); - - const t = getTypes(); - - t.assertLiteral(breakLoc); - t.assertIdentifier(label); - - this.breakLoc = breakLoc; - this.label = label; -} - -inherits(LabeledEntry, Entry); -exports.LabeledEntry = LabeledEntry; - -function LeapManager(emitter) { - assert.ok(this instanceof LeapManager); - - assert.ok(emitter instanceof Emitter); - - this.emitter = emitter; - this.entryStack = [new FunctionEntry(emitter.finalLoc)]; -} - -let LMp = LeapManager.prototype; -exports.LeapManager = LeapManager; - -LMp.withEntry = function(entry, callback) { - assert.ok(entry instanceof Entry); - this.entryStack.push(entry); - try { - callback.call(this.emitter); - } finally { - let popped = this.entryStack.pop(); - assert.strictEqual(popped, entry); - } -}; - -LMp._findLeapLocation = function(property, label) { - for (let i = this.entryStack.length - 1; i >= 0; --i) { - let entry = this.entryStack[i]; - let loc = entry[property]; - if (loc) { - if (label) { - if (entry.label && - entry.label.name === label.name) { - return loc; - } - } else if (entry instanceof LabeledEntry) { - // Ignore LabeledEntry entries unless we are actually breaking to - // a label. - } else { - return loc; - } - } - } - - return null; -}; - -LMp.getBreakLoc = function(label) { - return this._findLeapLocation("breakLoc", label); -}; - -LMp.getContinueLoc = function(label) { - return this._findLeapLocation("continueLoc", label); -}; |
