diff options
Diffstat (limited to 'js/src/jit-test/tests/debug/envChain_object-executeInGlobalWithBindings-empty.js')
-rw-r--r-- | js/src/jit-test/tests/debug/envChain_object-executeInGlobalWithBindings-empty.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/envChain_object-executeInGlobalWithBindings-empty.js b/js/src/jit-test/tests/debug/envChain_object-executeInGlobalWithBindings-empty.js new file mode 100644 index 0000000000..8e89d51dd7 --- /dev/null +++ b/js/src/jit-test/tests/debug/envChain_object-executeInGlobalWithBindings-empty.js @@ -0,0 +1,51 @@ +// Verify the environment chain for Debugger.Object described in +// js/src/vm/EnvironmentObject.h. + +// Passing empty bindings shouldn't create WithEnvironmentObject. + +const g = newGlobal({newCompartment: true}); +const dbg = new Debugger(); +const gw = dbg.addDebuggee(g); + +const bindings = {}; + +const envs = JSON.parse(gw.executeInGlobalWithBindings(` +var qualified = 10; +unqualified = 20; +let lexical = 30; +this.prop = 40; + +const envs = []; +let env = getInnerMostEnvironmentObject(); +while (env) { + envs.push({ + type: getEnvironmentObjectType(env) || "*global*", + qualified: !!Object.getOwnPropertyDescriptor(env, "qualified"), + unqualified: !!Object.getOwnPropertyDescriptor(env, "unqualified"), + lexical: !!Object.getOwnPropertyDescriptor(env, "lexical"), + prop: !!Object.getOwnPropertyDescriptor(env, "prop"), + }); + + env = getEnclosingEnvironmentObject(env); +} +JSON.stringify(envs); +`, bindings).return); + +assertEq(envs.length, 2, + "WithEnvironmentObject shouldn't be created if there's no binding"); + +let i = 0, env; + +env = envs[i]; i++; +assertEq(env.type, "GlobalLexicalEnvironmentObject"); +assertEq(env.qualified, false); +assertEq(env.unqualified, false); +assertEq(env.lexical, true, "lexical must live in the GlobalLexicalEnvironmentObject"); +assertEq(env.prop, false); + +env = envs[i]; i++; +assertEq(env.type, "*global*"); +assertEq(env.qualified, true, "qualified var must live in the global"); +assertEq(env.unqualified, true, "unqualified name must live in the global"); +assertEq(env.lexical, false); +assertEq(env.prop, true, "this property must live in the global"); |