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A JSClass is a JSType now, and has a JSScope. Added addSlot, getSlot, getScope.

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This commit is contained in:
beard%netscape.com 2000-06-23 05:09:37 +00:00
parent 6317d3c276
commit 6ccb94e600
2 changed files with 94 additions and 10 deletions
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52
js/js2/jsclasses.h
View File

@ -39,25 +39,67 @@
namespace JavaScript {
namespace JSClasses {
using JSTypes::JSValue;
using JSTypes::JSType;
using JSTypes::JSScope;
struct JSSlot {
const JSType* mType;
uint32 mIndex;
JSSlot() : mType(0)
{
}
};
#if defined(XP_MAC)
// copied from default template parameters in map.
typedef gc_allocator<std::pair<const String, JSSlot> > gc_slot_allocator;
#elif defined(XP_UNIX)
typedef JSTypes::gc_map_allocator gc_slot_allocator;
#elif defined(_WIN32)
typedef gc_allocator<JSSlot> gc_slot_allocator;
#endif
/**
* Represents a class in the JavaScript 2 (ECMA 4) language.
* Since a class is in essence a scope, we make this explicit
* by deriving JSClass from JSScope.
* Since a class defines a scope, and is defined in a scope,
* a new scope is created whose parent scope is the scope of
* class definition.
*/
class JSClass : public JSScope {
class JSClass : public JSType {
protected:
String mName;
JSClass* mSuperClass;
JSScope* mScope;
uint32 mSlotCount;
std::map<String, JSSlot, std::less<const String>, gc_slot_allocator> mSlots;
public:
JSClass(const String& name, JSClass* superClass = 0)
: mName(name), mSuperClass(superClass)
JSClass(JSScope* scope, const String& name, JSClass* superClass = 0)
: JSType(superClass), mName(name), mSuperClass(superClass), mSlotCount(0)
{
mScope = new JSScope(scope);
setProperty(widenCString("methods"), JSValue(mScope));
}
const String& getName() { return mName; }
JSClass* getSuperClass() { return mSuperClass; }
JSScope* getScope() { return mScope; }
JSSlot& addSlot(const String& name, const JSType* type)
{
JSSlot& slot = mSlots[name];
ASSERT(slot.mType == 0);
slot.mType = type;
slot.mIndex = mSlotCount++;
return slot;
}
JSSlot& getSlot(const String& name)
{
return mSlots[name];
}
};
} /* namespace JSClasses */

52
js2/src/jsclasses.h
View File

@ -39,25 +39,67 @@
namespace JavaScript {
namespace JSClasses {
using JSTypes::JSValue;
using JSTypes::JSType;
using JSTypes::JSScope;
struct JSSlot {
const JSType* mType;
uint32 mIndex;
JSSlot() : mType(0)
{
}
};
#if defined(XP_MAC)
// copied from default template parameters in map.
typedef gc_allocator<std::pair<const String, JSSlot> > gc_slot_allocator;
#elif defined(XP_UNIX)
typedef JSTypes::gc_map_allocator gc_slot_allocator;
#elif defined(_WIN32)
typedef gc_allocator<JSSlot> gc_slot_allocator;
#endif
/**
* Represents a class in the JavaScript 2 (ECMA 4) language.
* Since a class is in essence a scope, we make this explicit
* by deriving JSClass from JSScope.
* Since a class defines a scope, and is defined in a scope,
* a new scope is created whose parent scope is the scope of
* class definition.
*/
class JSClass : public JSScope {
class JSClass : public JSType {
protected:
String mName;
JSClass* mSuperClass;
JSScope* mScope;
uint32 mSlotCount;
std::map<String, JSSlot, std::less<const String>, gc_slot_allocator> mSlots;
public:
JSClass(const String& name, JSClass* superClass = 0)
: mName(name), mSuperClass(superClass)
JSClass(JSScope* scope, const String& name, JSClass* superClass = 0)
: JSType(superClass), mName(name), mSuperClass(superClass), mSlotCount(0)
{
mScope = new JSScope(scope);
setProperty(widenCString("methods"), JSValue(mScope));
}
const String& getName() { return mName; }
JSClass* getSuperClass() { return mSuperClass; }
JSScope* getScope() { return mScope; }
JSSlot& addSlot(const String& name, const JSType* type)
{
JSSlot& slot = mSlots[name];
ASSERT(slot.mType == 0);
slot.mType = type;
slot.mIndex = mSlotCount++;
return slot;
}
JSSlot& getSlot(const String& name)
{
return mSlots[name];
}
};
} /* namespace JSClasses */