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Added Python-like .get() method to Dictionary in GDScript #20488

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Added .get() method to Dictionary class in GDScript to return the value if the key exists, or return Null if the key does not exist.
This commit is contained in:
m 2018-07-30 00:04:32 -04:00
parent 451e5fd051
commit bf1867aaab
4 changed files with 23 additions and 0 deletions
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9
core/dictionary.cpp
View file

@ -112,6 +112,15 @@ Variant Dictionary::get_valid(const Variant &p_key) const {
return E.get();
}
Variant Dictionary::get(const Variant &p_key, const Variant &p_default) const {
const Variant *result = getptr(p_key);
if (!result) {
return p_default;
}
return *result;
}
int Dictionary::size() const {
return _p->variant_map.size();

1
core/dictionary.h
View file

@ -58,6 +58,7 @@ public:
Variant *getptr(const Variant &p_key);
Variant get_valid(const Variant &p_key) const;
Variant get(const Variant &p_key, const Variant &p_default) const;
int size() const;
bool empty() const;

2
core/variant_call.cpp
View file

@ -486,6 +486,7 @@ struct _VariantCall {
VCALL_LOCALMEM0R(Dictionary, keys);
VCALL_LOCALMEM0R(Dictionary, values);
VCALL_LOCALMEM1R(Dictionary, duplicate);
VCALL_LOCALMEM2R(Dictionary, get);
VCALL_LOCALMEM2(Array, set);
VCALL_LOCALMEM1R(Array, get);
@ -1679,6 +1680,7 @@ void register_variant_methods() {
ADDFUNC0R(DICTIONARY, ARRAY, Dictionary, keys, varray());
ADDFUNC0R(DICTIONARY, ARRAY, Dictionary, values, varray());
ADDFUNC1R(DICTIONARY, DICTIONARY, Dictionary, duplicate, BOOL, "deep", varray(false));
ADDFUNC2R(DICTIONARY, NIL, Dictionary, get, NIL, "key", NIL, "default", varray(Variant()));
ADDFUNC0R(ARRAY, INT, Array, size, varray());
ADDFUNC0R(ARRAY, BOOL, Array, empty, varray());

11
doc/classes/Dictionary.xml
View file

@ -87,6 +87,17 @@
Return the list of values in the [code]Dictionary[/code].
</description>
</method>
<method name="get">
<return type="Variant">
</return>
<argument index="0" name="key" type="Variant">
</argument>
<argument index="1" name="default" type="Variant" default="null">
</argument>
<description>
Returns the current value for the specified key in the [code]Dictionary[/code]. If the key does not exist, the method returns the value of the optional default argument, or Null if it is omitted.
</description>
</method>
</methods>
<constants>
</constants>