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Part 1: Implement ES6 function name property semantics

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Issue #78
This commit is contained in:
janekptacijarabaci 2018-03-19 15:47:10 +01:00 • committed by Roy Tam
commit 748c69d7fd
30 changed files with 750 additions and 81 deletions
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22
js/src/vm/Interpreter.cpp
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@ -1860,7 +1860,6 @@ CASE(EnableInterruptsPseudoOpcode)
/* Various 1-byte no-ops. */
CASE(JSOP_NOP)
CASE(JSOP_NOP_DESTRUCTURING)
CASE(JSOP_UNUSED182)
CASE(JSOP_UNUSED183)
CASE(JSOP_UNUSED187)
CASE(JSOP_UNUSED192)
@ -3482,6 +3481,19 @@ CASE(JSOP_TOASYNC)
}
END_CASE(JSOP_TOASYNC)
CASE(JSOP_SETFUNNAME)
{
MOZ_ASSERT(REGS.stackDepth() >= 2);
FunctionPrefixKind prefixKind = FunctionPrefixKind(GET_UINT8(REGS.pc));
ReservedRooted<Value> name(&rootValue0, REGS.sp[-1]);
ReservedRooted<JSFunction*> fun(&rootFunction0, &REGS.sp[-2].toObject().as<JSFunction>());
if (!SetFunctionNameIfNoOwnName(cx, fun, name, prefixKind))
goto error;
REGS.sp--;
}
END_CASE(JSOP_SETFUNNAME)
CASE(JSOP_CALLEE)
MOZ_ASSERT(REGS.fp()->isFunctionFrame());
PUSH_COPY(REGS.fp()->calleev());
@ -4343,7 +4355,7 @@ js::DefFunOperation(JSContext* cx, HandleScript script, HandleObject envChain,
parent = parent->enclosingEnvironment();
/* ES5 10.5 (NB: with subsequent errata). */
RootedPropertyName name(cx, fun->name()->asPropertyName());
RootedPropertyName name(cx, fun->explicitName()->asPropertyName());
RootedShape shape(cx);
RootedObject pobj(cx);
@ -4991,7 +5003,7 @@ js::ReportRuntimeLexicalError(JSContext* cx, unsigned errorNumber,
RootedPropertyName name(cx);
if (op == JSOP_THROWSETCALLEE) {
name = script->functionNonDelazifying()->name()->asPropertyName();
name = script->functionNonDelazifying()->explicitName()->asPropertyName();
} else if (IsLocalOp(op)) {
name = FrameSlotName(script, pc)->asPropertyName();
} else if (IsAtomOp(op)) {
@ -5059,8 +5071,8 @@ js::ThrowUninitializedThis(JSContext* cx, AbstractFramePtr frame)
if (fun->isDerivedClassConstructor()) {
const char* name = "anonymous";
JSAutoByteString str;
if (fun->name()) {
if (!AtomToPrintableString(cx, fun->name(), &str))
if (fun->explicitName()) {
if (!AtomToPrintableString(cx, fun->explicitName(), &str))
return false;
name = str.ptr();
}