diff options
Diffstat (limited to 'deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/src/lval.js')
-rwxr-xr-x | deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/src/lval.js | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/src/lval.js b/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/src/lval.js deleted file mode 100755 index fbbc38bbcb..0000000000 --- a/deps/npm/node_modules/readable-stream/node_modules/inline-process-browser/node_modules/falafel/node_modules/acorn/src/lval.js +++ /dev/null @@ -1,213 +0,0 @@ -import {types as tt} from "./tokentype" -import {Parser} from "./state" -import {reservedWords} from "./identifier" -import {has} from "./util" - -const pp = Parser.prototype - -// Convert existing expression atom to assignable pattern -// if possible. - -pp.toAssignable = function(node, isBinding) { - if (this.options.ecmaVersion >= 6 && node) { - switch (node.type) { - case "Identifier": - case "ObjectPattern": - case "ArrayPattern": - case "AssignmentPattern": - break - - case "ObjectExpression": - node.type = "ObjectPattern" - for (let i = 0; i < node.properties.length; i++) { - let prop = node.properties[i] - if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter") - this.toAssignable(prop.value, isBinding) - } - break - - case "ArrayExpression": - node.type = "ArrayPattern" - this.toAssignableList(node.elements, isBinding) - break - - case "AssignmentExpression": - if (node.operator === "=") { - node.type = "AssignmentPattern" - } else { - this.raise(node.left.end, "Only '=' operator can be used for specifying default value.") - } - break - - case "ParenthesizedExpression": - node.expression = this.toAssignable(node.expression, isBinding) - break - - case "MemberExpression": - if (!isBinding) break - - default: - this.raise(node.start, "Assigning to rvalue") - } - } - return node -} - -// Convert list of expression atoms to binding list. - -pp.toAssignableList = function(exprList, isBinding) { - let end = exprList.length - if (end) { - let last = exprList[end - 1] - if (last && last.type == "RestElement") { - --end - } else if (last && last.type == "SpreadElement") { - last.type = "RestElement" - let arg = last.argument - this.toAssignable(arg, isBinding) - if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") - this.unexpected(arg.start) - --end - } - } - for (let i = 0; i < end; i++) { - let elt = exprList[i] - if (elt) this.toAssignable(elt, isBinding) - } - return exprList -} - -// Parses spread element. - -pp.parseSpread = function(refShorthandDefaultPos) { - let node = this.startNode() - this.next() - node.argument = this.parseMaybeAssign(refShorthandDefaultPos) - return this.finishNode(node, "SpreadElement") -} - -pp.parseRest = function() { - let node = this.startNode() - this.next() - node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected() - return this.finishNode(node, "RestElement") -} - -// Parses lvalue (assignable) atom. - -pp.parseBindingAtom = function() { - if (this.options.ecmaVersion < 6) return this.parseIdent() - switch (this.type) { - case tt.name: - return this.parseIdent() - - case tt.bracketL: - let node = this.startNode() - this.next() - node.elements = this.parseBindingList(tt.bracketR, true, true) - return this.finishNode(node, "ArrayPattern") - - case tt.braceL: - return this.parseObj(true) - - default: - this.unexpected() - } -} - -pp.parseBindingList = function(close, allowEmpty, allowTrailingComma) { - let elts = [], first = true - while (!this.eat(close)) { - if (first) first = false - else this.expect(tt.comma) - if (allowEmpty && this.type === tt.comma) { - elts.push(null) - } else if (allowTrailingComma && this.afterTrailingComma(close)) { - break - } else if (this.type === tt.ellipsis) { - let rest = this.parseRest() - this.parseBindingListItem(rest) - elts.push(rest) - this.expect(close) - break - } else { - let elem = this.parseMaybeDefault(this.start, this.startLoc) - this.parseBindingListItem(elem) - elts.push(elem) - } - } - return elts -} - -pp.parseBindingListItem = function(param) { - return param -} - -// Parses assignment pattern around given atom if possible. - -pp.parseMaybeDefault = function(startPos, startLoc, left) { - if (Array.isArray(startPos)){ - if (this.options.locations && noCalls === undefined) { - // shift arguments to left by one - left = startLoc - // flatten startPos - startLoc = startPos[1] - startPos = startPos[0] - } - } - left = left || this.parseBindingAtom() - if (!this.eat(tt.eq)) return left - let node = this.startNodeAt(startPos, startLoc) - node.operator = "=" - node.left = left - node.right = this.parseMaybeAssign() - return this.finishNode(node, "AssignmentPattern") -} - -// Verify that a node is an lval — something that can be assigned -// to. - -pp.checkLVal = function(expr, isBinding, checkClashes) { - switch (expr.type) { - case "Identifier": - if (this.strict && (reservedWords.strictBind(expr.name) || reservedWords.strict(expr.name))) - this.raise(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode") - if (checkClashes) { - if (has(checkClashes, expr.name)) - this.raise(expr.start, "Argument name clash in strict mode") - checkClashes[expr.name] = true - } - break - - case "MemberExpression": - if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression") - break - - case "ObjectPattern": - for (let i = 0; i < expr.properties.length; i++) - this.checkLVal(expr.properties[i].value, isBinding, checkClashes) - break - - case "ArrayPattern": - for (let i = 0; i < expr.elements.length; i++) { - let elem = expr.elements[i] - if (elem) this.checkLVal(elem, isBinding, checkClashes) - } - break - - case "AssignmentPattern": - this.checkLVal(expr.left, isBinding, checkClashes) - break - - case "RestElement": - this.checkLVal(expr.argument, isBinding, checkClashes) - break - - case "ParenthesizedExpression": - this.checkLVal(expr.expression, isBinding, checkClashes) - break - - default: - this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue") - } -} |