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Allow returning Dictionary after merging

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This commit is contained in:
kobewi 2022-09-08 18:14:10 +02:00
parent 9b94c80e9a
commit eb0a624902
4 changed files with 27 additions and 0 deletions
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7
core/variant/dictionary.cpp
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@ -249,6 +249,7 @@ void Dictionary::clear() {
}
void Dictionary::merge(const Dictionary &p_dictionary, bool p_overwrite) {
ERR_FAIL_COND_MSG(_p->read_only, "Dictionary is in read-only state.");
for (const KeyValue<Variant, Variant> &E : p_dictionary._p->variant_map) {
if (p_overwrite || !has(E.key)) {
operator[](E.key) = E.value;
@ -256,6 +257,12 @@ void Dictionary::merge(const Dictionary &p_dictionary, bool p_overwrite) {
}
}
Dictionary Dictionary::merged(const Dictionary &p_dictionary, bool p_overwrite) const {
Dictionary ret = duplicate();
ret.merge(p_dictionary, p_overwrite);
return ret;
}
void Dictionary::_unref() const {
ERR_FAIL_NULL(_p);
if (_p->refcount.unref()) {

1
core/variant/dictionary.h
View File

@ -64,6 +64,7 @@ public:
bool is_empty() const;
void clear();
void merge(const Dictionary &p_dictionary, bool p_overwrite = false);
Dictionary merged(const Dictionary &p_dictionary, bool p_overwrite = false) const;
bool has(const Variant &p_key) const;
bool has_all(const Array &p_keys) const;

1
core/variant/variant_call.cpp
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@ -2205,6 +2205,7 @@ static void _register_variant_builtin_methods() {
bind_method(Dictionary, is_empty, sarray(), varray());
bind_method(Dictionary, clear, sarray(), varray());
bind_method(Dictionary, merge, sarray("dictionary", "overwrite"), varray(false));
bind_method(Dictionary, merged, sarray("dictionary", "overwrite"), varray(false));
bind_method(Dictionary, has, sarray("key"), varray());
bind_method(Dictionary, has_all, sarray("keys"), varray());
bind_method(Dictionary, find_key, sarray("value"), varray());

18
doc/classes/Dictionary.xml
View File

@ -340,6 +340,24 @@
[b]Note:[/b] [method merge] is [i]not[/i] recursive. Nested dictionaries are considered as keys that can be overwritten or not depending on the value of [param overwrite], but they will never be merged together.
</description>
</method>
<method name="merged" qualifiers="const">
<return type="Dictionary" />
<param index="0" name="dictionary" type="Dictionary" />
<param index="1" name="overwrite" type="bool" default="false" />
<description>
Returns a copy of this dictionary merged with the other [param dictionary]. By default, duplicate keys are not copied over, unless [param overwrite] is [code]true[/code]. See also [method merge].
This method is useful for quickly making dictionaries with default values:
[codeblock]
var base = { "fruit": "apple", "vegetable": "potato" }
var extra = { "fruit": "orange", "dressing": "vinegar" }
# Prints { "fruit": "orange", "vegetable": "potato", "dressing": "vinegar" }
print(extra.merged(base))
# Prints { "fruit": "apple", "vegetable": "potato", "dressing": "vinegar" }
print(extra.merged(base, true))
[/codeblock]
See also [method merge].
</description>
</method>
<method name="size" qualifiers="const">
<return type="int" />
<description>