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old value support in chain binding

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Dima Granetchi
2014-11-25 19:11:35 +02:00
parent 228ee2d026
commit 1b1a40ce2a
1 changed files with 5 additions and 5 deletions
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src/bindx/BindxExt.hx
+5 -5
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@@ -215,12 +215,12 @@ class BindExt {
if (first != null)
Context.warning('${expr.toString()} is not full bindable. Can bind only "${first.e.toString()}".', expr.pos);
return prepareChain(fields, macro listener, expr.pos, prefix);
return prepareChain(fields, macro listener, expr, prefix);
}
inline static function listenerName(idx:Int, prefix) return '${prefix}listener$idx';
static function prepareChain(fields:Array<FieldExpr>, listener:Expr, pos:Position, prefix = ""):Chain {
static function prepareChain(fields:Array<FieldExpr>, expr:Expr, listener:Expr, prefix = ""):Chain {
var res:Chain = { init:[], bind:[], unbind:[], expr:null, zeroName:null };
var prevListenerName = listenerName(0, prefix);
@@ -265,11 +265,12 @@ class BindExt {
fieldListenerBody.push(macro if (n != null)
$ { BindMacros.bindingSignalProvider.getClassFieldBindExpr(macro n, prev.field, prevListenerNameExpr ) });
}
var callPrev = macro $prevListenerNameExpr($a { prev.params != null ? [] : [macro null, macro n != null ? n.$fieldName : null] } );
var callPrev = macro $prevListenerNameExpr($a { prev.params != null ? [] : [macro o != null ? o.$fieldName : null, macro n != null ? n.$fieldName : null] } );
fieldListenerBody.push(callPrev);
if (field.params != null) {
fieldListenerBody.unshift(macro var n:Null<$type> = try $e catch (e:Dynamic) null );
fieldListenerBody.unshift(macro var o:Null<$type> = null );
fieldListener = macro function $listenerName ():Void $b { fieldListenerBody };
} else {
@@ -289,13 +290,12 @@ class BindExt {
}
if (zeroListener == null || zeroListener.f.bindable == false)
throw new bindx.Error("Chain is not bindable.", pos);
throw new bindx.Error("Chain is not bindable.", expr.pos);
var zeroName = res.zeroName = zeroListener.f.e.toString();
if (zeroName != "this")
res.init.unshift(macro var $zeroName = $i{zeroName});
// TODO: local var
res.bind.push(BindMacros.bindingSignalProvider.getClassFieldBindExpr(macro $i{zeroName}, zeroListener.f.field, zeroListener.l ));
res.unbind.push(BindMacros.bindingSignalProvider.getClassFieldUnbindExpr(macro $i{zeroName}, zeroListener.f.field, zeroListener.l ));