Examples with StrategoTerm org.spoofax.terms.StrategoTerm used on opensource projects

Example 1 with StrategoTerm

use of org.spoofax.terms.StrategoTerm in project spoofax by metaborg.

the class JSGLRCompletionService method createCompletionInsertAtEnd.

private ICompletion createCompletionInsertAtEnd(String name, String text, String additionalInfo, StrategoAppl change, boolean blankLineCompletion) {
    final StrategoTerm oldNode = (StrategoTerm) change.getSubterm(0);
    final StrategoTerm newNode = (StrategoTerm) change.getSubterm(1);
    // expected two lists
    if (change.getSubtermCount() != 2 || !(oldNode instanceof IStrategoList) || !(newNode instanceof IStrategoList)) {
        return null;
    }
    final String sort = ImploderAttachment.getElementSort(oldNode);
    int insertionPoint, suffixPoint;
    ITokens tokenizer = ImploderAttachment.getTokenizer(oldNode);
    final ImploderAttachment oldListIA = oldNode.getAttachment(ImploderAttachment.TYPE);
    int tokenPosition;
    // node
    if (oldNode.getSubtermCount() == 0) {
        tokenPosition = oldListIA.getLeftToken().getIndex() - 1 > 0 ? oldListIA.getLeftToken().getIndex() - 1 : 0;
        while ((tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_LAYOUT || tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_ERROR) && tokenPosition > 0) tokenPosition--;
        insertionPoint = tokenizer.getTokenAt(tokenPosition).getEndOffset();
    } else {
        // if list is not empty
        // insert after at end offset of the rightmost token of the element before the
        // completion
        StrategoTerm elementBefore = (StrategoTerm) oldNode.getSubterm(oldNode.getAllSubterms().length - 1);
        int leftIdx = elementBefore.getAttachment(ImploderAttachment.TYPE).getLeftToken().getIndex();
        int rightIdx = elementBefore.getAttachment(ImploderAttachment.TYPE).getRightToken().getIndex();
        while ((tokenizer.getTokenAt(rightIdx).getKind() == IToken.TK_LAYOUT || tokenizer.getTokenAt(rightIdx).getLength() == 0) && rightIdx > leftIdx) {
            rightIdx--;
        }
        insertionPoint = tokenizer.getTokenAt(rightIdx).getEndOffset();
        tokenPosition = rightIdx;
    }
    suffixPoint = insertionPoint + 1;
    // if completion is triggered in an empty line, consume that line
    IToken checkToken;
    boolean blankLine = false;
    if (blankLineCompletion) {
        for (; tokenPosition < tokenizer.getTokenCount(); tokenPosition++) {
            checkToken = tokenizer.getTokenAt(tokenPosition);
            if (tokenizer.toString(checkToken, checkToken).contains("\n")) {
                suffixPoint = checkToken.getEndOffset();
                if (!blankLine) {
                    blankLine = true;
                } else {
                    break;
                }
            }
        }
    }
    return new Completion(name, sort, text, additionalInfo, insertionPoint + 1, suffixPoint, CompletionKind.expansion);
}

Example 2 with StrategoTerm

use of org.spoofax.terms.StrategoTerm in project spoofax by metaborg.

the class JSGLRCompletionService method createCompletionInsertionTermFixing.

private ICompletion createCompletionInsertionTermFixing(String name, String text, String additionalInfo, String prefix, String suffix, StrategoAppl change, String completionKind) {
    final StrategoTerm newNode = (StrategoTerm) change.getSubterm(0);
    if (change.getSubtermCount() != 1 || !(newNode instanceof IStrategoAppl)) {
        return null;
    }
    final String sort = ImploderAttachment.getSort(newNode);
    int insertionPoint, suffixPoint;
    ITokens tokenizer = ImploderAttachment.getTokenizer(newNode);
    final StrategoTerm topMostAmb = findTopMostAmbNode(newNode);
    final ImploderAttachment topMostAmbIA = topMostAmb.getAttachment(ImploderAttachment.TYPE);
    // get the last non-layout token before the topmost ambiguity
    int tokenPosition = topMostAmbIA.getLeftToken().getIndex() - 1 > 0 ? topMostAmbIA.getLeftToken().getIndex() - 1 : 0;
    while ((tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_LAYOUT || tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_ERROR) && tokenPosition > 0) tokenPosition--;
    insertionPoint = tokenizer.getTokenAt(tokenPosition).getEndOffset();
    if (topMostAmbIA.getRightToken().getEndOffset() < topMostAmbIA.getRightToken().getStartOffset()) {
        // keep all the characters after the last non-layout token if completion ends with a
        // placeholder
        tokenPosition = topMostAmbIA.getRightToken().getIndex();
        while (tokenPosition > 0 && (tokenizer.getTokenAt(tokenPosition).getEndOffset() < tokenizer.getTokenAt(tokenPosition).getStartOffset() || tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_LAYOUT)) tokenPosition--;
        suffixPoint = tokenizer.getTokenAt(tokenPosition).getEndOffset() + 1;
    } else {
        // skip all the (erroneous) characters that were in the text already
        suffixPoint = topMostAmbIA.getRightToken().getEndOffset() + 1;
    }
    CompletionKind kind;
    if (completionKind.equals("recovery")) {
        kind = CompletionKind.recovery;
    } else if (completionKind.equals("expansionEditing")) {
        kind = CompletionKind.expansionEditing;
    } else {
        kind = CompletionKind.expansion;
    }
    return new Completion(name, sort, text, additionalInfo, insertionPoint + 1, suffixPoint, kind, prefix, suffix);
}

Example 3 with StrategoTerm

use of org.spoofax.terms.StrategoTerm in project spoofax by metaborg.

the class JSGLRCompletionService method getCompletionTermsFromAST.

private Collection<IStrategoTerm> getCompletionTermsFromAST(ISpoofaxParseUnit completionParseResult) {
    if (completionParseResult == null) {
        return Lists.newLinkedList();
    }
    StrategoTerm ast = (StrategoTerm) completionParseResult.ast();
    if (ast == null) {
        return Lists.newLinkedList();
    }
    Collection<IStrategoTerm> completionTerm = findCompletionTerm(ast);
    return completionTerm;
}

Example 4 with StrategoTerm

use of org.spoofax.terms.StrategoTerm in project spoofax by metaborg.

the class JSGLRCompletionService method createCompletionReplaceTerm.

private ICompletion createCompletionReplaceTerm(String name, String text, String additionalInfo, StrategoAppl change, boolean blankLineCompletion, String prefix, String suffix) {
    final StrategoTerm oldNode = (StrategoTerm) change.getSubterm(0);
    final StrategoTerm newNode = (StrategoTerm) change.getSubterm(1);
    if (change.getSubtermCount() != 2 || !(newNode instanceof IStrategoAppl) || !(oldNode instanceof IStrategoAppl)) {
        return null;
    }
    final String sort = ImploderAttachment.getSort(oldNode);
    int insertionPoint, suffixPoint;
    final ImploderAttachment oldNodeIA = oldNode.getAttachment(ImploderAttachment.TYPE);
    ITokens tokenizer = ImploderAttachment.getTokenizer(oldNode);
    // check if it's an empty node
    if (oldNodeIA.getLeftToken().getStartOffset() > oldNodeIA.getRightToken().getEndOffset()) {
        // get the last non-layout token before the new node
        int tokenPosition = oldNodeIA.getLeftToken().getIndex() - 1 > 0 ? oldNodeIA.getLeftToken().getIndex() - 1 : 0;
        while (tokenPosition > 0 && (tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_LAYOUT || tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_ERROR)) tokenPosition--;
        insertionPoint = tokenizer.getTokenAt(tokenPosition).getEndOffset();
        // if completion does not spam multiple lines preserve everything starting at the first non-layout char
        if (!additionalInfo.contains("\n")) {
            tokenPosition = oldNodeIA.getLeftToken().getIndex() + 1 < tokenizer.getTokenCount() ? oldNodeIA.getLeftToken().getIndex() + 1 : tokenizer.getTokenCount() - 1;
            while (tokenPosition < tokenizer.getTokenCount() && (tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_LAYOUT || tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_ERROR)) tokenPosition++;
            suffixPoint = tokenizer.getTokenAt(tokenPosition).getStartOffset();
        } else {
            // if completion spams multiple lines keep the lines
            suffixPoint = insertionPoint + 1;
        }
        // if completion is triggered in an empty line, consume that line
        IToken checkToken;
        boolean blankLine = false;
        if (blankLineCompletion) {
            for (; tokenPosition < tokenizer.getTokenCount(); tokenPosition++) {
                checkToken = tokenizer.getTokenAt(tokenPosition);
                if (tokenizer.toString(checkToken, checkToken).contains("\n")) {
                    suffixPoint = checkToken.getEndOffset();
                    if (!blankLine) {
                        blankLine = true;
                    } else {
                        break;
                    }
                }
            }
        }
    } else {
        // if not, do a regular replacement
        insertionPoint = oldNodeIA.getLeftToken().getStartOffset() - 1;
        suffixPoint = oldNodeIA.getRightToken().getEndOffset() + 1;
    }
    CompletionKind kind;
    if (prefix.equals("") && suffix.equals("")) {
        kind = CompletionKind.expansion;
    } else {
        kind = CompletionKind.expansionEditing;
    }
    return new Completion(name, sort, text, additionalInfo, insertionPoint + 1, suffixPoint, kind, prefix, suffix);
}

Example 5 with StrategoTerm

use of org.spoofax.terms.StrategoTerm in project spoofax by metaborg.

the class JSGLRCompletionService method createCompletionInsertBefore.

private ICompletion createCompletionInsertBefore(String name, String text, String additionalInfo, StrategoAppl change) {
    final StrategoTerm oldNode = (StrategoTerm) change.getSubterm(0);
    final StrategoTerm newNode = (StrategoTerm) change.getSubterm(1);
    // expect two terms and 1st should be an element of a list
    final StrategoTerm oldList = (StrategoTerm) ParentAttachment.getParent(oldNode);
    if (change.getSubtermCount() != 2 || !(oldNode instanceof IStrategoAppl) || !(newNode instanceof IStrategoList) || !(oldList instanceof IStrategoList)) {
        return null;
    }
    final String sort = ImploderAttachment.getSort(oldNode);
    int insertionPoint, suffixPoint;
    ITokens tokenizer = ImploderAttachment.getTokenizer(oldNode);
    IStrategoTerm[] subterms = oldList.getAllSubterms();
    int indexOfElement;
    for (indexOfElement = 0; indexOfElement < subterms.length; indexOfElement++) {
        if (subterms[indexOfElement] == oldNode)
            break;
    }
    // if inserted element is first (only two elements)
    if (indexOfElement == 0) {
        // insert after the first non-layout token before the leftmost token of the
        // completion node
        final ImploderAttachment oldNodeIA = oldNode.getAttachment(ImploderAttachment.TYPE);
        int tokenPosition = oldNodeIA.getLeftToken().getIndex() - 1 > 0 ? oldNodeIA.getLeftToken().getIndex() - 1 : 0;
        while ((tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_LAYOUT || tokenizer.getTokenAt(tokenPosition).getKind() == IToken.TK_ERROR) && tokenPosition > 0) tokenPosition--;
        insertionPoint = tokenizer.getTokenAt(tokenPosition).getEndOffset();
    } else {
        // if inserted element is not first
        // insert after at end offset of the rightmost token of the element before the
        // completion
        StrategoTerm elementBefore = (StrategoTerm) oldList.getSubterm(indexOfElement - 1);
        insertionPoint = elementBefore.getAttachment(ImploderAttachment.TYPE).getRightToken().getEndOffset();
    }
    // if completion is separated by a newline, preserve indentation of the subsequent node
    // else separation follows from the grammar
    String separator = "";
    for (int i = text.length() - 1; i >= 0; i--) {
        if (text.charAt(i) == additionalInfo.charAt(additionalInfo.length() - 1)) {
            break;
        }
        separator = text.charAt(i) + separator;
    }
    IToken checkToken = oldNode.getAttachment(ImploderAttachment.TYPE).getLeftToken();
    int checkTokenIdx = oldNode.getAttachment(ImploderAttachment.TYPE).getLeftToken().getIndex();
    suffixPoint = insertionPoint;
    if (separator.contains("\n")) {
        for (; checkTokenIdx >= 0; checkTokenIdx--) {
            checkToken = tokenizer.getTokenAt(checkTokenIdx);
            if (tokenizer.toString(checkToken, checkToken).contains("\n")) {
                break;
            }
            suffixPoint = checkToken.getStartOffset();
        }
    } else {
        suffixPoint = checkToken.getStartOffset();
    }
    return new Completion(name, sort, text, additionalInfo, insertionPoint + 1, suffixPoint, CompletionKind.expansion);
}