Examples of org.python.pydev.parser.prettyprinterv2.PrettyPrinterV2

Package org.python.pydev.parser.prettyprinterv2

Examples of org.python.pydev.parser.prettyprinterv2.PrettyPrinterV2

org.python.pydev.parser.prettyprinterv2.PrettyPrinterV2
The initial pretty printer approach consisted of going to a scope and then printing things in that scope as it walked the structure, but this approach doesn't seem to work well because of comments, as it depends too much on how the parsing was done and the comments found (and javacc just spits them out and the parser tries to put them in good places, but this is often not what happens) So, a different approach will be tested: Instead of doing everything in a single pass, we'll traverse the structure once to create a new (flat) structure, in a 2nd step that structure will be filled with comments and in a final step, that intermediary structure will be actually written. This will also enable the parsing to be simpler (and faster) as it'll not have to move comments around to try to find a suitable position.

    public static String createSourceFromAST(SimpleNode root, boolean ignoreComments, AdapterPrefs adapterPrefs) {
        IGrammarVersionProvider versionProvider = adapterPrefs.versionProvider;
        IIndentPrefs indentPrefs = DefaultIndentPrefs.get();
        String endLineDelim = adapterPrefs.endLineDelim;


        PrettyPrinterPrefsV2 prettyPrinterPrefs = PrettyPrinterV2.createDefaultPrefs(versionProvider, indentPrefs,
                endLineDelim);


        PrettyPrinterV2 printer = new PrettyPrinterV2(prettyPrinterPrefs);
        try {
            return printer.print(root);

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            }


            PrettyPrinterPrefsV2 prefsV2 = PrettyPrinterV2.createDefaultPrefs(edit, indentPrefs,
                    PyInformationPresenter.LINE_DELIM);


            PrettyPrinterV2 prettyPrinterV2 = new PrettyPrinterV2(prefsV2);
            try {


                str = prettyPrinterV2.print(astToPrint);
            } catch (IOException e) {
                Log.log(e);
            }
        }
        return str;

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                indentPrefs = DefaultIndentPrefs.get();
            }


            PrettyPrinterPrefsV2 prefsV2 = PrettyPrinterV2.createDefaultPrefs(edit, indentPrefs, lineDelimiter);


            PrettyPrinterV2 prettyPrinterV2 = new PrettyPrinterV2(prefsV2);
            try {


                str = prettyPrinterV2.print(astToPrint);
            } catch (IOException e) {
                Log.log(e);
            }
        }
        return str;

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            }


            PrettyPrinterPrefsV2 prefsV2 = PrettyPrinterV2.createDefaultPrefs(edit, indentPrefs,
                    PyInformationPresenter.LINE_DELIM);


            PrettyPrinterV2 prettyPrinterV2 = new PrettyPrinterV2(prefsV2);
            try {


                str = prettyPrinterV2.print(astToPrint);
            } catch (IOException e) {
                Log.log(e);
            }
        }
        return str;

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        checkExpected(createdFunctionDef, expected);
    }


    private void checkExpected(SimpleNode functionDef, String expected) throws Exception {
        MakeAstValidForPrettyPrintingVisitor.makeValid(functionDef);
        PrettyPrinterV2 printer = new PrettyPrinterV2(new PrettyPrinterPrefsV2("\n", "    ",
                new IGrammarVersionProvider() {


                    public int getGrammarVersion() throws MisconfigurationException {
                        return IGrammarVersionProvider.GRAMMAR_PYTHON_VERSION_2_7;
                    }
                }));
        String result = printer.print(functionDef);
        System.out.println("Result: >>" + result +
                "<<");
        assertEquals(expected, result);
    }

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     * @param node
     * @return
     * @throws Exception
     */
    public static String makePrint(IPrettyPrinterPrefs prefs, SimpleNode node) throws Error {
        PrettyPrinterV2 printer = new PrettyPrinterV2(prefs);
        String result = "";
        try {
            result = printer.print(node);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        if (DEBUG) {
            System.out.println("\n\nResult:\n");

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        timer.printDiff();
        assertTrue(!failedComparisson[0]);
    }


    private String printNode(SimpleNode node) {
        PrettyPrinterV2 prettyPrinterV2 = new PrettyPrinterV2(new PrettyPrinterPrefsV2("\n", "    ", versionProvider));
        try {
            return prettyPrinterV2.print(node);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }


        //      final WriterEraser stringWriter = new WriterEraser();

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        String endLineDelim = adapterPrefs.endLineDelim;


        PrettyPrinterPrefsV2 prettyPrinterPrefs = PrettyPrinterV2.createDefaultPrefs(versionProvider, indentPrefs,
                endLineDelim);


        PrettyPrinterV2 printer = new PrettyPrinterV2(prettyPrinterPrefs);
        try {
            return printer.print(root);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }


    }

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