| // Copyright (C) 2015 André Bargull. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| es6id: 18.2.1.2 |
| description: Throws a TypeError if a global function cannot be defined. |
| info: | |
| Runtime Semantics: EvalDeclarationInstantiation( body, varEnv, lexEnv, strict) |
| |
| ... |
| 8. For each d in varDeclarations, in reverse list order do |
| a. If d is neither a VariableDeclaration or a ForBinding, then |
| i. Assert: d is either a FunctionDeclaration or a GeneratorDeclaration. |
| ii. NOTE If there are multiple FunctionDeclarations for the same name, the last declaration is used. |
| iii. Let fn be the sole element of the BoundNames of d. |
| iv. If fn is not an element of declaredFunctionNames, then |
| 1. If varEnvRec is a global Environment Record, then |
| a. Let fnDefinable be varEnvRec.CanDeclareGlobalFunction(fn). |
| b. ReturnIfAbrupt(fnDefinable). |
| c. If fnDefinable is false, throw TypeError exception. |
| ... |
| flags: [noStrict] |
| ---*/ |
| |
| var error; |
| try { |
| eval("function NaN(){}"); |
| } catch (e) { |
| error = e; |
| } |
| |
| assert(error instanceof TypeError); |
