Method parse

rhino/src/main/java/org/mozilla/javascript/Parser.java:614–629

Builds a parse tree from the given source string. @return an AstRoot object representing the parsed program. If the parse fails, null will be returned. (The parse failure will result in a call to the ErrorReporter from CompilerEnvirons.)

(String sourceString, String sourceURI, int lineno)

     *     ErrorReporter} from {@link CompilerEnvirons}.)
     */
    public AstRoot parse(String sourceString, String sourceURI, int lineno) {
        if (parseFinished) throw new IllegalStateException("parser reused");
        this.sourceURI = sourceURI;
        if (compilerEnv.isIdeMode()) {
            this.sourceChars = sourceString.toCharArray();
        }
        currentPos = ts = new TokenStream(this, null, sourceString, lineno);
        try {
            return parse();
        } catch (IOException iox) {
            // Should never happen
            throw new IllegalStateException();
        } finally {
            parseFinished = true;
        }
    }

    /**
     * Builds a parse tree from the given sourcereader.