@Test
public void savesOriginalTypeNameInJsDoc() {
CompilerUtil compiler = createCompiler(path("foo.js"));
compiler.compile(
createSourceFile(
path("foo.js"),
"/** @constructor */",
"var Builder = function(){};",
"/** @return {!Builder} . */",
"Builder.prototype.returnThis = function() { return this; };",
"exports.Builder = Builder"));
Scope scope = compiler.getCompiler().getTopScope();
Var var = scope.getVar("module$foo");
JSType type = var.getInitialValue().getJSType().findPropertyType("Builder");
assertTrue(type.isConstructor());
type = type.toObjectType().getTypeOfThis();
assertEquals("$jscomp.scope.Builder", type.toString());
type = type.toObjectType().getPropertyType("returnThis");
assertTrue(type.toString(), type.isFunctionType());
JSDocInfo info = type.getJSDocInfo();
assertNotNull(info);
Node node = getOnlyElement(info.getTypeNodes());
assertEquals(Token.BANG, node.getType());
node = node.getFirstChild();
assertTrue(node.isString());
assertEquals("$jscomp.scope.Builder", node.getString());
assertEquals("Builder", node.getProp(Node.ORIGINALNAME_PROP));
}
@Test
public void exportedInternalVarInheritsJsDocInfo() {
CompilerUtil compiler = createCompiler(path("foo.js"));
compiler.compile(
createSourceFile(
path("foo.js"),
"/**",
" * @constructor",
" */",
"var Greeter = function(){};",
"/**",
" * @param {string} name .",
" * @return {string} .",
" */",
"Greeter.prototype.sayHi = function(name) {",
" return 'Hello, ' + name;",
"};",
"",
"exports.Greeter = Greeter"));
JSType exportedGreeter =
compiler
.getCompiler()
.getTopScope()
.getVar("module$foo")
.getType()
.findPropertyType("Greeter");
assertTrue(exportedGreeter.isConstructor());
}
@Test
public void canReferenceConstructorDefinedInTheGlobalScope() {
CompilerUtil compiler = createCompiler(path("x/bar.js"));
compiler.compile(
createSourceFile(path("x/foo.js"), "/** @constructor */", "function Foo() {}"),
createSourceFile(
path("x/bar.js"), "/** @type {function(new: Foo)} */", "exports.Foo = Foo;"));
Scope scope = compiler.getCompiler().getTopScope();
Var var = scope.getVar("module$x$bar");
JSType type = var.getInitialValue().getJSType().findPropertyType("Foo");
assertTrue(type.isConstructor());
type = type.toObjectType().getTypeOfThis();
assertEquals("Foo", type.toString());
}
@Test
public void canReferenceConstructorExportedByAnotherModule() {
CompilerUtil compiler = createCompiler(path("x/foo.js"), path("x/bar.js"));
compiler.compile(
createSourceFile(path("x/foo.js"), "/** @constructor */", "exports.Foo = function(){};"),
createSourceFile(
path("x/bar.js"),
"var foo = require('./foo');",
"/** @type {function(new: foo.Foo)} */",
"exports.Foo = foo.Foo;"));
Scope scope = compiler.getCompiler().getTopScope();
Var var = scope.getVar("module$x$bar");
JSType type = var.getInitialValue().getJSType().findPropertyType("Foo");
assertTrue(type.isConstructor());
type = type.toObjectType().getTypeOfThis();
assertEquals("module$x$foo.Foo", type.toString());
}