97 lines
3.6 KiB
JavaScript
97 lines
3.6 KiB
JavaScript
/* eslint max-len: "off" */
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import * as util from "util";
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/**
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* Mapping of messages to be used in Babel.
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* Messages can include $0-style placeholders.
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*/
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export const MESSAGES = {
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tailCallReassignmentDeopt:
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"Function reference has been reassigned, so it will probably be dereferenced, therefore we can't optimise this with confidence",
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classesIllegalBareSuper: "Illegal use of bare super",
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classesIllegalSuperCall:
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"Direct super call is illegal in non-constructor, use super.$1() instead",
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scopeDuplicateDeclaration: "Duplicate declaration $1",
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settersNoRest: "Setters aren't allowed to have a rest",
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noAssignmentsInForHead: "No assignments allowed in for-in/of head",
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expectedMemberExpressionOrIdentifier:
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"Expected type MemberExpression or Identifier",
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invalidParentForThisNode:
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"We don't know how to handle this node within the current parent - please open an issue",
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readOnly: "$1 is read-only",
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unknownForHead: "Unknown node type $1 in ForStatement",
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didYouMean: "Did you mean $1?",
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codeGeneratorDeopt:
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"Note: The code generator has deoptimised the styling of $1 as it exceeds the max of $2.",
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missingTemplatesDirectory:
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"no templates directory - this is most likely the result of a broken `npm publish`. Please report to https://github.com/babel/babel/issues",
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unsupportedOutputType: "Unsupported output type $1",
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illegalMethodName: "Illegal method name $1",
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lostTrackNodePath:
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"We lost track of this node's position, likely because the AST was directly manipulated",
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modulesIllegalExportName: "Illegal export $1",
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modulesDuplicateDeclarations:
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"Duplicate module declarations with the same source but in different scopes",
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undeclaredVariable: "Reference to undeclared variable $1",
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undeclaredVariableType:
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"Referencing a type alias outside of a type annotation",
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undeclaredVariableSuggestion:
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"Reference to undeclared variable $1 - did you mean $2?",
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traverseNeedsParent:
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"You must pass a scope and parentPath unless traversing a Program/File. Instead of that you tried to traverse a $1 node without passing scope and parentPath.",
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traverseVerifyRootFunction:
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"You passed `traverse()` a function when it expected a visitor object, are you sure you didn't mean `{ enter: Function }`?",
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traverseVerifyVisitorProperty:
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"You passed `traverse()` a visitor object with the property $1 that has the invalid property $2",
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traverseVerifyNodeType:
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"You gave us a visitor for the node type $1 but it's not a valid type",
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pluginNotObject:
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"Plugin $2 specified in $1 was expected to return an object when invoked but returned $3",
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pluginNotFunction:
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"Plugin $2 specified in $1 was expected to return a function but returned $3",
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pluginUnknown:
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"Unknown plugin $1 specified in $2 at $3, attempted to resolve relative to $4",
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pluginInvalidProperty: "Plugin $1 provided an invalid property of $2",
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};
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/**
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* Get a message with $0 placeholders replaced by arguments.
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*/
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export function get(key: string, ...args: Array<any>): string {
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const msg = MESSAGES[key];
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if (!msg) throw new ReferenceError(`Unknown message ${JSON.stringify(key)}`);
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// stringify args
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args = parseArgs(args);
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// replace $0 placeholders with args
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return msg.replace(/\$(\d+)/g, function(str, i) {
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return args[i - 1];
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});
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}
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/**
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* Stingify arguments to be used inside messages.
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*/
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export function parseArgs(args: Array<any>): Array<string> {
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return args.map(function(val) {
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if (val != null && val.inspect) {
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return val.inspect();
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} else {
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try {
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return JSON.stringify(val) || val + "";
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} catch (e) {
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return util.inspect(val);
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}
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}
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});
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}
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