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Added copy constructor to model generator (non-private-fields) #48

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Added copy constructor to model generator (non-private-fields) #48

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29 changes: 25 additions & 4 deletions lib/syntax.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -214,19 +214,23 @@ class ClassDefinition {
}
}

String get _fieldList {
String _generateFieldList({int indentLevel = 1, String delimiter = ";"}) {
return fields.keys.map((key) {
final f = fields[key];
final fieldName =
fixFieldName(key, typeDef: f, privateField: privateFields);
final sb = new StringBuffer();
sb.write('\t');
sb.write('\t' * indentLevel);
_addTypeDef(f, sb);
sb.write(' $fieldName;');
sb.write(' $fieldName$delimiter');
return sb.toString();
}).join('\n');
}

String get _fieldList {
return _generateFieldList();
}

String get _gettersSetters {
return fields.keys.map((key) {
final f = fields[key];
Expand Down Expand Up @@ -293,6 +297,23 @@ class ClassDefinition {
return sb.toString();
}

String get _copyConstructor {
final sb = new StringBuffer();
sb.write('\t$name copyWithUpdate({');
sb.write(_generateFieldList(indentLevel: 2, delimiter: ","));
sb.write('\t}) {');
sb.write('\t\treturn $name(');
fields.keys.forEach((key) {
final f = fields[key];
final fieldName =
fixFieldName(key, typeDef: f, privateField: privateFields);
sb.write('$fieldName: $fieldName ?? this.$fieldName,');
});
sb.write(');'); // return $name(...
sb.write('}');
return sb.toString();
}

String get _jsonParseFunc {
final sb = new StringBuffer();
sb.write('\t$name');
Expand Down Expand Up @@ -320,7 +341,7 @@ class ClassDefinition {
if (privateFields) {
return 'class $name {\n$_fieldList\n\n$_defaultPrivateConstructor\n\n$_gettersSetters\n\n$_jsonParseFunc\n\n$_jsonGenFunc\n}\n';
} else {
return 'class $name {\n$_fieldList\n\n$_defaultConstructor\n\n$_jsonParseFunc\n\n$_jsonGenFunc\n}\n';
return 'class $name {\n$_fieldList\n\n$_defaultConstructor\n\n$_copyConstructor\n\n$_jsonParseFunc\n\n$_jsonGenFunc\n}\n';
}
}
}