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package com.jsoniter;

import java.lang.reflect.Type;

import java.util.HashMap;

import java.util.Map;

class CodegenImplMap {

public static String genMap(Class clazz, Type[] typeArgs) {

Type valueType = 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 {");

append(lines, "String field = com.jsoniter.CodegenAccess.readObjectFieldAsString(iter);");

append(lines, "map.put(field, {{op}});");

append(lines, "} while (com.jsoniter.CodegenAccess.nextToken(iter) == ',');");

append(lines, "return map;");

return lines.toString().replace("{{clazz}}", clazz.getName()).replace("{{op}}", CodegenImplNative.genReadOp(valueType));

}

private static void append(StringBuilder lines, String str) {

lines.append(str);

lines.append("\n");

}

}