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made a start with script functions

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git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@62 0fc631ac-6414-0410-93d0-97cfa31319b6
This commit is contained in:
twanvl
2006-10-31 12:17:36 +00:00
parent 0caaf01a78
commit 1ffaa5bd58
20 changed files with 372 additions and 29 deletions
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src/script/value.hpp
+30 -4
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@@ -36,8 +36,7 @@ enum ScriptType
, SCRIPT_STRING
, SCRIPT_COLOR
, SCRIPT_IMAGE
, SCRIPT_BUILDIN_FUN
, SCRIPT_SCRIPT_FUN
, SCRIPT_FUNCTION
, SCRIPT_OBJECT
, SCRIPT_DUMMY
};
@@ -77,6 +76,8 @@ class ScriptValue {
virtual ScriptValueP makeIterator() const;
/// Return the next item for this iterator, or ScriptValueP() if there is no such item
virtual ScriptValueP next();
/// Return the number of items in this value (assuming it is a collection)
virtual int itemCount() const;
/// Signal that a script depends on a member of this value
virtual void signalDependent(Context&, const Dependency&, const String& name);
@@ -166,6 +167,7 @@ class ScriptCollection : public ScriptValue {
virtual ScriptValueP makeIterator() const {
return new_intrusive1<ScriptCollectionIterator<Collection> >(value);
}
virtual int itemCount() const { return (int)value->size(); }
private:
/// Store a pointer to a collection, collections are only ever used for structures owned outside the script
const Collection* value;
@@ -203,6 +205,7 @@ class ScriptMap : public ScriptValue {
virtual ScriptValueP getMember(const String& name) const {
return get_member(*value, name);
}
virtual int itemCount() const { return (int)value->size(); }
private:
/// Store a pointer to a collection, collections are only ever used for structures owned outside the script
const Collection* value;
@@ -271,7 +274,7 @@ inline ScriptValueP toScript(const shared_ptr<T>& v) { return new_intrusive1<Scr
class ScriptBuildin_##name : public ScriptValue { \
dep \
/* virtual */ ScriptType type() const \
{ return SCRIPT_BUILDIN_FUN; } \
{ return SCRIPT_FUNCTION; } \
virtual String typeName() const \
{ return _("build in function '") _(#name) _("'"); } \
virtual ScriptValueP eval(Context&) const; \
@@ -284,7 +287,7 @@ inline ScriptValueP toScript(const shared_ptr<T>& v) { return new_intrusive1<Scr
* @code
* SCRIPT_FUNCTION(my_function) {
* SCRIPT_PARAM(String, my_string_param);
* ...
* ... my_string_param ...
* }
* @endcode
* Throws an error if the parameter is not found.
@@ -292,6 +295,29 @@ inline ScriptValueP toScript(const shared_ptr<T>& v) { return new_intrusive1<Scr
#define SCRIPT_PARAM(Type, name) \
Type name = *ctx.getVariable(_(#name))
/// Retrieve an optional parameter
/** Usage:
* @code
* SCRIPT_FUNCTION(my_function) {
* SCRIPT_OPTIONAL_PARAM(String, my_string_param) {
* ... my_string_param ...
* }
* ...
* }
* @endcode
*/
#define SCRIPT_OPTIONAL_PARAM(Type, name) SCRIPT_OPTIONAL_PARAM_N(Type, name, #name)
#define SCRIPT_OPTIONAL_PARAM_N(Type, str, name) \
ScriptValueP name##_ = ctx.getVariableOpt(_(str)); \
Type name = name##_ ? *name##_ : Type(); \
if (name##_)
/// Retrieve an optional parameter with a default value
#define SCRIPT_PARAM_DEFAULT(Type, name, def) \
ScriptValueP name##_ = ctx.getVariableOpt(_(#name)); \
Type name = name##_ ? *name##_ : def
/// Return a value from a SCRIPT_FUNCTION
#define SCRIPT_RETURN(value) return toScript(value)