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package jdk.internal.reflect;

Assists in iterating down a method's signature
/** Assists in iterating down a method's signature */
class SignatureIterator { private final String sig; private int idx; public SignatureIterator(String sig) { this.sig = sig; reset(); } public void reset() { idx = 1; } public boolean atEnd() { return sig.charAt(idx) == ')'; } public String next() { if (atEnd()) return null; char c = sig.charAt(idx); if (c != '[' && c != 'L') { ++idx; return new String(new char[] { c }); } // Walk forward to end of entry int endIdx = idx; if (c == '[') { while ((c = sig.charAt(endIdx)) == '[') { endIdx++; } } if (c == 'L') { while (sig.charAt(endIdx) != ';') { endIdx++; } } int beginIdx = idx; idx = endIdx + 1; return sig.substring(beginIdx, idx); }
Should only be called when atEnd() is true. Does not change state of iterator.
/** Should only be called when atEnd() is true. Does not change state of iterator. */
public String returnType() { if (!atEnd()) { throw new InternalError("Illegal use of SignatureIterator"); } return sig.substring(idx + 1, sig.length()); } }