diff options
Diffstat (limited to 'chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js')
| -rw-r--r-- | chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js new file mode 100644 index 00000000000..ddd88baf979 --- /dev/null +++ b/chromium/third_party/node/node_modules/@babel/traverse/lib/path/replacement.js @@ -0,0 +1,260 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.replaceWithMultiple = replaceWithMultiple; +exports.replaceWithSourceString = replaceWithSourceString; +exports.replaceWith = replaceWith; +exports._replaceWith = _replaceWith; +exports.replaceExpressionWithStatements = replaceExpressionWithStatements; +exports.replaceInline = replaceInline; + +var _codeFrame = require("@babel/code-frame"); + +var _index = require("../index"); + +var _index2 = require("./index"); + +var _cache = require("../cache"); + +var _parser = require("@babel/parser"); + +var _t = require("@babel/types"); + +var _helperHoistVariables = require("@babel/helper-hoist-variables"); + +const { + FUNCTION_TYPES, + arrowFunctionExpression, + assignmentExpression, + awaitExpression, + blockStatement, + callExpression, + cloneNode, + expressionStatement, + identifier, + inheritLeadingComments, + inheritTrailingComments, + inheritsComments, + isExpression, + isProgram, + isStatement, + removeComments, + returnStatement, + toSequenceExpression, + validate, + yieldExpression +} = _t; + +function replaceWithMultiple(nodes) { + var _pathCache$get; + + this.resync(); + nodes = this._verifyNodeList(nodes); + inheritLeadingComments(nodes[0], this.node); + inheritTrailingComments(nodes[nodes.length - 1], this.node); + (_pathCache$get = _cache.path.get(this.parent)) == null ? void 0 : _pathCache$get.delete(this.node); + this.node = this.container[this.key] = null; + const paths = this.insertAfter(nodes); + + if (this.node) { + this.requeue(); + } else { + this.remove(); + } + + return paths; +} + +function replaceWithSourceString(replacement) { + this.resync(); + + try { + replacement = `(${replacement})`; + replacement = (0, _parser.parse)(replacement); + } catch (err) { + const loc = err.loc; + + if (loc) { + err.message += " - make sure this is an expression.\n" + (0, _codeFrame.codeFrameColumns)(replacement, { + start: { + line: loc.line, + column: loc.column + 1 + } + }); + err.code = "BABEL_REPLACE_SOURCE_ERROR"; + } + + throw err; + } + + replacement = replacement.program.body[0].expression; + + _index.default.removeProperties(replacement); + + return this.replaceWith(replacement); +} + +function replaceWith(replacement) { + this.resync(); + + if (this.removed) { + throw new Error("You can't replace this node, we've already removed it"); + } + + if (replacement instanceof _index2.default) { + replacement = replacement.node; + } + + if (!replacement) { + throw new Error("You passed `path.replaceWith()` a falsy node, use `path.remove()` instead"); + } + + if (this.node === replacement) { + return [this]; + } + + if (this.isProgram() && !isProgram(replacement)) { + throw new Error("You can only replace a Program root node with another Program node"); + } + + if (Array.isArray(replacement)) { + throw new Error("Don't use `path.replaceWith()` with an array of nodes, use `path.replaceWithMultiple()`"); + } + + if (typeof replacement === "string") { + throw new Error("Don't use `path.replaceWith()` with a source string, use `path.replaceWithSourceString()`"); + } + + let nodePath = ""; + + if (this.isNodeType("Statement") && isExpression(replacement)) { + if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement) && !this.parentPath.isExportDefaultDeclaration()) { + replacement = expressionStatement(replacement); + nodePath = "expression"; + } + } + + if (this.isNodeType("Expression") && isStatement(replacement)) { + if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement)) { + return this.replaceExpressionWithStatements([replacement]); + } + } + + const oldNode = this.node; + + if (oldNode) { + inheritsComments(replacement, oldNode); + removeComments(oldNode); + } + + this._replaceWith(replacement); + + this.type = replacement.type; + this.setScope(); + this.requeue(); + return [nodePath ? this.get(nodePath) : this]; +} + +function _replaceWith(node) { + var _pathCache$get2; + + if (!this.container) { + throw new ReferenceError("Container is falsy"); + } + + if (this.inList) { + validate(this.parent, this.key, [node]); + } else { + validate(this.parent, this.key, node); + } + + this.debug(`Replace with ${node == null ? void 0 : node.type}`); + (_pathCache$get2 = _cache.path.get(this.parent)) == null ? void 0 : _pathCache$get2.set(node, this).delete(this.node); + this.node = this.container[this.key] = node; +} + +function replaceExpressionWithStatements(nodes) { + this.resync(); + const nodesAsSequenceExpression = toSequenceExpression(nodes, this.scope); + + if (nodesAsSequenceExpression) { + return this.replaceWith(nodesAsSequenceExpression)[0].get("expressions"); + } + + const functionParent = this.getFunctionParent(); + const isParentAsync = functionParent == null ? void 0 : functionParent.is("async"); + const isParentGenerator = functionParent == null ? void 0 : functionParent.is("generator"); + const container = arrowFunctionExpression([], blockStatement(nodes)); + this.replaceWith(callExpression(container, [])); + const callee = this.get("callee"); + (0, _helperHoistVariables.default)(callee.get("body"), id => { + this.scope.push({ + id + }); + }, "var"); + const completionRecords = this.get("callee").getCompletionRecords(); + + for (const path of completionRecords) { + if (!path.isExpressionStatement()) continue; + const loop = path.findParent(path => path.isLoop()); + + if (loop) { + let uid = loop.getData("expressionReplacementReturnUid"); + + if (!uid) { + uid = callee.scope.generateDeclaredUidIdentifier("ret"); + callee.get("body").pushContainer("body", returnStatement(cloneNode(uid))); + loop.setData("expressionReplacementReturnUid", uid); + } else { + uid = identifier(uid.name); + } + + path.get("expression").replaceWith(assignmentExpression("=", cloneNode(uid), path.node.expression)); + } else { + path.replaceWith(returnStatement(path.node.expression)); + } + } + + callee.arrowFunctionToExpression(); + const newCallee = callee; + + const needToAwaitFunction = isParentAsync && _index.default.hasType(this.get("callee.body").node, "AwaitExpression", FUNCTION_TYPES); + + const needToYieldFunction = isParentGenerator && _index.default.hasType(this.get("callee.body").node, "YieldExpression", FUNCTION_TYPES); + + if (needToAwaitFunction) { + newCallee.set("async", true); + + if (!needToYieldFunction) { + this.replaceWith(awaitExpression(this.node)); + } + } + + if (needToYieldFunction) { + newCallee.set("generator", true); + this.replaceWith(yieldExpression(this.node, true)); + } + + return newCallee.get("body.body"); +} + +function replaceInline(nodes) { + this.resync(); + + if (Array.isArray(nodes)) { + if (Array.isArray(this.container)) { + nodes = this._verifyNodeList(nodes); + + const paths = this._containerInsertAfter(nodes); + + this.remove(); + return paths; + } else { + return this.replaceWithMultiple(nodes); + } + } else { + return this.replaceWith(nodes); + } +}
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