forked from json-iterator/java
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCodegenImplMap.java
More file actions
54 lines (51 loc) · 2.31 KB
/
CodegenImplMap.java
File metadata and controls
54 lines (51 loc) · 2.31 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
package com.jsoniter.output;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
class CodegenImplMap {
public static String genMap(Class clazz, Type[] typeArgs) {
Type keyType = String.class;
Type valueType = Object.class;
if (typeArgs.length == 0) {
// default to Map<String, Object>
} else if (typeArgs.length == 2) {
keyType = typeArgs[0];
valueType = typeArgs[1];
} else {
throw new IllegalArgumentException(
"can not bind to generic collection without argument types, " +
"try syntax like TypeLiteral<Map<String, String>>{}");
}
if (keyType != String.class) {
throw new IllegalArgumentException("map key must be String");
}
if (clazz == Map.class) {
clazz = HashMap.class;
}
StringBuilder lines = new StringBuilder();
append(lines, "public static void encode_(java.lang.Object obj, com.jsoniter.output.JsonStream stream) throws java.io.IOException {");
append(lines, "if (obj == null) { stream.writeNull(); return; }");
append(lines, "java.util.Map map = (java.util.Map)obj;");
append(lines, "java.util.Iterator iter = map.entrySet().iterator();");
append(lines, "if(!iter.hasNext()) { stream.writeEmptyObject(); return; }");
append(lines, "java.util.Map.Entry entry = (java.util.Map.Entry)iter.next();");
append(lines, "stream.writeObjectStart();");
append(lines, "stream.writeObjectField((String)entry.getKey());");
append(lines, "{{op}}");
append(lines, "while(iter.hasNext()) {");
append(lines, "entry = (java.util.Map.Entry)iter.next();");
append(lines, "stream.writeMore();");
append(lines, "stream.writeObjectField((String)entry.getKey());");
append(lines, "{{op}}");
append(lines, "}");
append(lines, "stream.writeObjectEnd();");
append(lines, "}");
return lines.toString()
.replace("{{clazz}}", clazz.getName())
.replace("{{op}}", CodegenImplNative.genWriteOp("entry.getValue()", valueType));
}
private static void append(StringBuilder lines, String str) {
lines.append(str);
lines.append("\n");
}
}