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Allow untyped imports

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This commit is contained in:
Andy Hanson
2016-10-27 07:19:37 -07:00
parent b5ba3152ff
commit 4937d9c8b4
24 changed files with 402 additions and 25 deletions
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35
src/compiler/checker.ts
View File

@@ -1069,7 +1069,7 @@ namespace ts {
const moduleSymbol = resolveExternalModuleName(node, (<ImportDeclaration>node.parent).moduleSpecifier);
if (moduleSymbol) {
const exportDefaultSymbol = isShorthandAmbientModuleSymbol(moduleSymbol) ?
const exportDefaultSymbol = isUntypedModuleSymbol(moduleSymbol) ?
moduleSymbol :
moduleSymbol.exports["export="] ?
getPropertyOfType(getTypeOfSymbol(moduleSymbol.exports["export="]), "default") :
@@ -1145,7 +1145,7 @@ namespace ts {
if (targetSymbol) {
const name = specifier.propertyName || specifier.name;
if (name.text) {
if (isShorthandAmbientModuleSymbol(moduleSymbol)) {
if (isUntypedModuleSymbol(moduleSymbol)) {
return moduleSymbol;
}
@@ -1365,8 +1365,9 @@ namespace ts {
}
const isRelative = isExternalModuleNameRelative(moduleName);
const quotedName = '"' + moduleName + '"';
if (!isRelative) {
const symbol = getSymbol(globals, '"' + moduleName + '"', SymbolFlags.ValueModule);
const symbol = getSymbol(globals, quotedName, SymbolFlags.ValueModule);
if (symbol) {
// merged symbol is module declaration symbol combined with all augmentations
return getMergedSymbol(symbol);
@@ -1395,6 +1396,28 @@ namespace ts {
}
}
// May be an untyped module. If so, ignore resolutionDiagnostic.
if (!isRelative && resolvedModule && !extensionIsTypeScript(resolvedModule.extension)) {
if (compilerOptions.noImplicitAny) {
if (moduleNotFoundError) {
error(errorNode,
Diagnostics.A_package_for_0_was_found_at_1_but_is_untyped_Because_noImplicitAny_is_enabled_this_package_must_have_a_declaration,
moduleReference,
resolvedModule.resolvedFileName);
}
return undefined;
}
// Create a new symbol to represent the untyped module and store it in globals.
// This provides a name to the module. See the test tests/cases/fourslash/untypedModuleImport.ts
const newSymbol = createSymbol(SymbolFlags.ValueModule, quotedName);
// Module symbols are expected to have 'exports', although since this is an untyped module it can be empty.
newSymbol.exports = createMap<Symbol>();
// Cache it so subsequent accesses will return the same module.
globals[quotedName] = newSymbol;
return newSymbol;
}
if (moduleNotFoundError) {
// report errors only if it was requested
if (resolutionDiagnostic) {
@@ -3462,7 +3485,7 @@ namespace ts {
function getTypeOfFuncClassEnumModule(symbol: Symbol): Type {
const links = getSymbolLinks(symbol);
if (!links.type) {
if (symbol.valueDeclaration.kind === SyntaxKind.ModuleDeclaration && isShorthandAmbientModuleSymbol(symbol)) {
if (symbol.flags & SymbolFlags.Module && isUntypedModuleSymbol(symbol)) {
links.type = anyType;
}
else {
@@ -19011,7 +19034,7 @@ namespace ts {
function moduleExportsSomeValue(moduleReferenceExpression: Expression): boolean {
let moduleSymbol = resolveExternalModuleName(moduleReferenceExpression.parent, moduleReferenceExpression);
if (!moduleSymbol || isShorthandAmbientModuleSymbol(moduleSymbol)) {
if (!moduleSymbol || isUntypedModuleSymbol(moduleSymbol)) {
// If the module is not found or is shorthand, assume that it may export a value.
return true;
}
@@ -19512,7 +19535,7 @@ namespace ts {
(typeReferenceDirectives || (typeReferenceDirectives = [])).push(typeReferenceDirective);
}
else {
// found at least one entry that does not originate from type reference directive
// found at least one entry that does not originate from type reference directive
return undefined;
}
}

4
src/compiler/diagnosticMessages.json
View File

@@ -2869,6 +2869,10 @@
"category": "Error",
"code": 6143
},
"A package for '{0}' was found at '{1}', but is untyped. Because '--noImplicitAny' is enabled, this package must have a declaration.": {
"category": "Error",
"code": 6144
},
"Variable '{0}' implicitly has an '{1}' type.": {
"category": "Error",
"code": 7005

4
src/compiler/program.ts
View File

@@ -1324,6 +1324,7 @@ namespace ts {
// - it's not a top level JavaScript module that exceeded the search max
const elideImport = isJsFileFromNodeModules && currentNodeModulesDepth > maxNodeModuleJsDepth;
// Don't add the file if it has a bad extension (e.g. 'tsx' if we don't have '--allowJs')
// This may still end up being an untyped module -- the file won't be included but imports will be allowed.
const shouldAddFile = resolvedFileName && !getResolutionDiagnostic(options, resolution) && !options.noResolve && i < file.imports.length && !elideImport;
if (elideImport) {
@@ -1571,8 +1572,9 @@ namespace ts {
/* @internal */
/**
* Returns a DiagnosticMessage if we can't use a resolved module due to its extension.
* Returns a DiagnosticMessage if we won't include a resolved module due to its extension.
* The DiagnosticMessage's parameters are the imported module name, and the filename it resolved to.
* This returns a diagnostic even if the module will be an untyped module.
*/
export function getResolutionDiagnostic(options: CompilerOptions, { extension }: ResolvedModule): DiagnosticMessage | undefined {
switch (extension) {

5
src/compiler/utilities.ts
View File

@@ -406,8 +406,9 @@ namespace ts {
((<ModuleDeclaration>node).name.kind === SyntaxKind.StringLiteral || isGlobalScopeAugmentation(<ModuleDeclaration>node));
}
export function isShorthandAmbientModuleSymbol(moduleSymbol: Symbol): boolean {
return isShorthandAmbientModule(moduleSymbol.valueDeclaration);
/** Given a symbol for a module, checks that it is either an untyped import or a shorthand ambient module. */
export function isUntypedModuleSymbol(moduleSymbol: Symbol): boolean {
return !moduleSymbol.valueDeclaration || isShorthandAmbientModule(moduleSymbol.valueDeclaration);
}
function isShorthandAmbientModule(node: Node): boolean {

38
src/harness/harness.ts
View File

@@ -1108,22 +1108,7 @@ namespace Harness {
const option = getCommandLineOption(name);
if (option) {
const errors: ts.Diagnostic[] = [];
switch (option.type) {
case "boolean":
options[option.name] = value.toLowerCase() === "true";
break;
case "string":
options[option.name] = value;
break;
// If not a primitive, the possible types are specified in what is effectively a map of options.
case "list":
options[option.name] = ts.parseListTypeOption(<ts.CommandLineOptionOfListType>option, value, errors);
break;
default:
options[option.name] = ts.parseCustomTypeOption(<ts.CommandLineOptionOfCustomType>option, value, errors);
break;
}
options[option.name] = optionValue(option, value, errors);
if (errors.length > 0) {
throw new Error(`Unknown value '${value}' for compiler option '${name}'.`);
}
@@ -1135,6 +1120,27 @@ namespace Harness {
}
}
function optionValue(option: ts.CommandLineOption, value: string, errors: ts.Diagnostic[]): any {
switch (option.type) {
case "boolean":
return value.toLowerCase() === "true";
case "string":
return value;
case "number": {
const number = parseInt(value, 10);
if (isNaN(number)) {
throw new Error(`Value must be a number, got: ${JSON.stringify(value)}`);
}
return number;
}
// If not a primitive, the possible types are specified in what is effectively a map of options.
case "list":
return ts.parseListTypeOption(<ts.CommandLineOptionOfListType>option, value, errors);
default:
return ts.parseCustomTypeOption(<ts.CommandLineOptionOfCustomType>option, value, errors);
}
}
export interface TestFile {
unitName: string;
content: string;