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chain binding with gaps

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This commit is contained in:
Dima Granetchi
2014-11-20 18:05:03 +02:00
parent 28d3a5850a
commit da54ed7921
2 changed files with 84 additions and 51 deletions
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src/bindx/BindxExt.hx
+42 -39
View File
@@ -72,7 +72,7 @@ class BindExt {
var res = macro
$b { chain.bind.concat(chain.init).concat([macro function __unbind__():Void { $b { chain.unbind } }]) };
//trace(new Printer().printExpr(res));
trace(new Printer().printExpr(res));
return res;
}
@@ -93,7 +93,7 @@ class BindExt {
var listenerName = 'listener${i+1}';
var listenerNameExpr = macro $i { listenerName };
var value = 'value${i+1}';
var value = 'value${i}';
var valueExpr = macro $i { value };
var fieldName = prev.field.name;
@@ -103,52 +103,57 @@ class BindExt {
var fieldListener:Expr;
if (field.bindable) zeroListener = { f:field, l:listenerNameExpr };
if (field.bindable) {
var type = Context.typeof(field.e).toComplexType();
var type = Context.typeof(field.e).toComplexType();
var unbind:Expr;
if (prev.bindable) {
unbind = BindMacros.bindingSignalProvider.getClassFieldUnbindExpr(valueExpr, prev.field, prevListenerNameExpr );
res.bind.push(macro var $value:Null<$type> = null );
var unbind = BindMacros.bindingSignalProvider.getClassFieldUnbindExpr(valueExpr, prev.field, prevListenerNameExpr );
fieldListenerBody.push(macro
res.unbind.push(macro if ($valueExpr != null) { $unbind; $valueExpr = null; } );
fieldListenerBody.push(macro
if (n != null) {
$ { BindMacros.bindingSignalProvider.getClassFieldBindExpr(macro n, prev.field, prevListenerNameExpr ) }
$prevListenerNameExpr($a { prev.params != null ? [] : [macro n.$fieldName, macro n.$fieldName] } );
}
);
if (field.params != null) {
fieldListenerBody.unshift(macro var n:Null<$type> = $valueExpr = $e );
fieldListenerBody.unshift(macro if ($valueExpr != null) $unbind );
fieldListener = macro function $listenerName ():Void {
$b { fieldListenerBody };
};
} else {
fieldListenerBody.push(macro
if (n != null) {
$prevListenerNameExpr($a { prev.params != null ? [] : [macro n.$fieldName, macro n.$fieldName] } );
}
);
}
if (field.params != null) {
if (prev.bindable) {
if (field.bindable) {
fieldListenerBody.unshift(macro $valueExpr = n );
fieldListenerBody.unshift(macro if ($valueExpr != null) $unbind );
} else {
fieldListenerBody.unshift(macro if (n != null) ${BindMacros.bindingSignalProvider.getClassFieldUnbindExpr(macro n, prev.field, prevListenerNameExpr )} );
}
}
else {
fieldListenerBody.unshift(macro var n:Null<$type> = $e );
fieldListener = macro function $listenerName ():Void $b { fieldListenerBody };
}
else {
if (prev.bindable) {
fieldListenerBody.unshift(macro $valueExpr = n );
fieldListenerBody.unshift(macro if ($valueExpr != null) $unbind );
fieldListenerBody.unshift(macro if (o != null) ${BindMacros.bindingSignalProvider.getClassFieldUnbindExpr(macro o, prev.field, prevListenerNameExpr )} );
fieldListener = macro function $listenerName (o:Null<$type>, n:Null<$type>):Void {
$b { fieldListenerBody };
};
}
res.bind.push(fieldListener);
res.unbind.push(macro if ($valueExpr != null) { $unbind; $valueExpr = null; } );
}
else {
//trace(printer.printExpr(field.e) + " . " + field.field.name);
/*if (field.params != null) {
fieldListenerBody.unshift(macro var n = $e );
fieldListener = macro function $listenerName () {
$b { fieldListenerBody };
};
}
else {
fieldListener = macro function $listenerName (o, n) {
$b { fieldListenerBody };
};
}*/
fieldListener = macro function $listenerName (o:Null<$type>, n:Null<$type>):Void
$b { fieldListenerBody };
}
res.bind.push(fieldListener);
prevListenerName = listenerName;
prevListenerNameExpr = listenerNameExpr;
}
@@ -157,10 +162,8 @@ class BindExt {
Context.error("Chain is not bindable", pos);
}
var bind = BindMacros.bindingSignalProvider.getClassFieldBindExpr(zeroListener.f.e, zeroListener.f.field, zeroListener.l );
var unbind = BindMacros.bindingSignalProvider.getClassFieldUnbindExpr(zeroListener.f.e, zeroListener.f.field, zeroListener.l );
res.init.push(bind);
res.unbind.push(unbind);
res.init.push(BindMacros.bindingSignalProvider.getClassFieldBindExpr(zeroListener.f.e, zeroListener.f.field, zeroListener.l ));
res.unbind.push(BindMacros.bindingSignalProvider.getClassFieldUnbindExpr(zeroListener.f.e, zeroListener.f.field, zeroListener.l ));
if (zeroListener.f.params != null) {
res.init.push(macro ${zeroListener.l}());
}