get function [1000619]

// get purpose 1: access a list/array/map (safer version of x.get(y))

static <A> A get(L<A> l, int idx) {
  ret l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
}

// seems to conflict with other signatures
/*static <A, B> B get(Map<A, B> map, A key) {
  ret map != null ? map.get(key) : null;
}*/

static <A> A get(A[] l, int idx) {
  ret idx >= 0 && idx < l(l) ? l[idx] : null;
}

// default to false
static bool get(bool[] l, int idx) {
  ret idx >= 0 && idx < l(l) ? l[idx] : false;
}

// get purpose 2: access a field by reflection or a map

static Object get(Object o, String field) {
  try {
    if (o == null) null;
    if (o instanceof Class) return get((Class) o, field);
    
    if (o instanceof Map)
      ret ((Map) o).get(field);
      
    Field f = getOpt_findField(o.getClass(), field);
    if (f != null) {
      makeAccessible(f);
      ret f.get(o);
    }
      
    ifclass DynamicObject
      if (o cast DynamicObject)
        ret getOptDynOnly(o, field);
    endif
  } catch (Exception e) {
    throw asRuntimeException(e);
  }
  throw new RuntimeException("Field '" + field + "' not found in " + o.getClass().getName());
}

sO mapMethodLike get_raw(S field, O o) {
  ret get_raw(o, field);
}

static Object get_raw(Object o, String field) ctex {
  if (o == null) null;
  Field f = get_findField(o.getClass(), field);
  makeAccessible(f);
  ret f.get(o);
}

static Object get(Class c, String field) {
  try {
    Field f = get_findStaticField(c, field);
    makeAccessible(f);
    return f.get(null);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}

static Field get_findStaticField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
}

static Field get_findField(Class<?> c, String field) {
  Class _c = c;
  do {
    for (Field f : _c.getDeclaredFields())
      if (f.getName().equals(field))
        return f;
    _c = _c.getSuperclass();
  } while (_c != null);
  throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
}

static O mapMethodLike get(S field, O o) {
  ret get(o, field);
}

sbool get(BitSet bs, int idx) {
  ret bs != null && bs.get(idx);
}

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1	// get purpose 1: access a list/array/map (safer version of x.get(y))
2
3	static <A> A get(L<A> l, int idx) {
4	ret l != null && idx >= 0 && idx < l(l) ? l.get(idx) : null;
5	}
6
7	// seems to conflict with other signatures
8	/*static <A, B> B get(Map<A, B> map, A key) {
9	ret map != null ? map.get(key) : null;
10	}*/
11
12	static <A> A get(A[] l, int idx) {
13	ret idx >= 0 && idx < l(l) ? l[idx] : null;
14	}
15
16	// default to false
17	static bool get(bool[] l, int idx) {
18	ret idx >= 0 && idx < l(l) ? l[idx] : false;
19	}
20
21	// get purpose 2: access a field by reflection or a map
22
23	static Object get(Object o, String field) {
24	try {
25	if (o == null) null;
26	if (o instanceof Class) return get((Class) o, field);
27
28	if (o instanceof Map)
29	ret ((Map) o).get(field);
30
31	Field f = getOpt_findField(o.getClass(), field);
32	if (f != null) {
33	makeAccessible(f);
34	ret f.get(o);
35	}
36
37	ifclass DynamicObject
38	if (o cast DynamicObject)
39	ret getOptDynOnly(o, field);
40	endif
41	} catch (Exception e) {
42	throw asRuntimeException(e);
43	}
44	throw new RuntimeException("Field '" + field + "' not found in " + o.getClass().getName());
45	}
46
47	sO mapMethodLike get_raw(S field, O o) {
48	ret get_raw(o, field);
49	}
50
51	static Object get_raw(Object o, String field) ctex {
52	if (o == null) null;
53	Field f = get_findField(o.getClass(), field);
54	makeAccessible(f);
55	ret f.get(o);
56	}
57
58	static Object get(Class c, String field) {
59	try {
60	Field f = get_findStaticField(c, field);
61	makeAccessible(f);
62	return f.get(null);
63	} catch (Exception e) {
64	throw new RuntimeException(e);
65	}
66	}
67
68	static Field get_findStaticField(Class<?> c, String field) {
69	Class _c = c;
70	do {
71	for (Field f : _c.getDeclaredFields())
72	if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0)
73	return f;
74	_c = _c.getSuperclass();
75	} while (_c != null);
76	throw new RuntimeException("Static field '" + field + "' not found in " + c.getName());
77	}
78
79	static Field get_findField(Class<?> c, String field) {
80	Class _c = c;
81	do {
82	for (Field f : _c.getDeclaredFields())
83	if (f.getName().equals(field))
84	return f;
85	_c = _c.getSuperclass();
86	} while (_c != null);
87	throw new RuntimeException("Field '" + field + "' not found in " + c.getName());
88	}
89
90	static O mapMethodLike get(S field, O o) {
91	ret get(o, field);
92	}
93
94	sbool get(BitSet bs, int idx) {
95	ret bs != null && bs.get(idx);
96	}

ID	Author/Program	Comment	Date
1106	stefan	This doesn't scan superclasses... does it?	2015-09-22 20:12:23
443	#1000604 (pitcher)		2015-08-18 14:51:38

Snippet ID:	#1000619
Snippet name:	get function
Eternal ID of this version:	#1000619/17
Text MD5:	b698bb3cf617d701e5299944cab25fab
Author:	stefan
Category:
Type:	JavaX fragment (include)
Public (visible to everyone):	Yes
Archived (hidden from active list):	No
Created/modified:	2021-06-26 22:39:18
Source code size:	2536 bytes / 96 lines
Pitched / IR pitched:	No / No
Views / Downloads:	3290 / 15659
Version history:	16 change(s)
Referenced in:	[show references]

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JavaX fragment (include) [tags: use-pretranspiled]

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