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CodegenImplMap.java
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39 lines (34 loc) · 1.58 KB
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package com.jsoniter;
import com.jsoniter.spi.ClassInfo;
import com.jsoniter.spi.TypeLiteral;
import java.lang.reflect.Type;
class CodegenImplMap {
public static String genMap(ClassInfo classInfo) {
Type keyType = classInfo.typeArgs[0];
Type valueType = classInfo.typeArgs[1];
StringBuilder lines = new StringBuilder();
append(lines, "{{clazz}} map = ({{clazz}})com.jsoniter.CodegenAccess.resetExistingObject(iter);");
append(lines, "if (iter.readNull()) { return null; }");
append(lines, "if (map == null) { map = new {{clazz}}(); }");
append(lines, "if (!com.jsoniter.CodegenAccess.readObjectStart(iter)) {");
append(lines, "return map;");
append(lines, "}");
append(lines, "do {");
if (keyType == String.class) {
append(lines, "java.lang.Object mapKey = com.jsoniter.CodegenAccess.readObjectFieldAsString(iter);");
} else {
append(lines, "java.lang.Object mapKey = com.jsoniter.CodegenAccess.readMapKey(\"" +
TypeLiteral.create(keyType).getDecoderCacheKey() +"\", iter);");
}
append(lines, "map.put(mapKey, {{op}});");
append(lines, "} while (com.jsoniter.CodegenAccess.nextToken(iter) == ',');");
append(lines, "return map;");
return lines.toString()
.replace("{{clazz}}", classInfo.clazz.getName())
.replace("{{op}}", CodegenImplNative.genReadOp(valueType));
}
private static void append(StringBuilder lines, String str) {
lines.append(str);
lines.append("\n");
}
}