Examples with Clause edu.mit.csail.sdg.ast.Clause used on opensource projects

Example 1 with Clause

use of edu.mit.csail.sdg.ast.Clause in project org.alloytools.alloy by AlloyTools.

the class CompModule method resolveCommand.

/**
 * Resolve a particular command.
 */
private Command resolveCommand(Command cmd, ConstList<Sig> exactSigs, Expr globalFacts) throws Err {
    Command parent = cmd.parent == null ? null : resolveCommand(cmd.parent, exactSigs, globalFacts);
    String cname = ((ExprVar) (cmd.formula)).label;
    Expr e;
    Clause declaringClause = null;
    if (cmd.check) {
        // We prefer assertion in the
        List<Object> m = getRawQS(2, cname);
        // topmost module
        if (m.size() == 0 && cname.indexOf('/') < 0)
            m = getRawNQS(this, 2, cname);
        if (m.size() > 1)
            unique(cmd.pos, cname, m);
        if (m.size() < 1)
            throw new ErrorSyntax(cmd.pos, "The assertion \"" + cname + "\" cannot be found.");
        Expr expr = (Expr) (m.get(0));
        e = expr.not();
    } else {
        // We prefer fun/pred in the
        List<Object> m = getRawQS(4, cname);
        // topmost module
        if (m.size() == 0 && cname.indexOf('/') < 0)
            m = getRawNQS(this, 4, cname);
        if (m.size() > 1)
            unique(cmd.pos, cname, m);
        if (m.size() < 1)
            throw new ErrorSyntax(cmd.pos, "The predicate/function \"" + cname + "\" cannot be found.");
        Func f = (Func) (m.get(0));
        declaringClause = f;
        e = f.getBody();
        if (!f.isPred)
            e = e.in(f.returnDecl);
        if (f.decls.size() > 0)
            e = ExprQt.Op.SOME.make(null, null, f.decls, e);
    }
    if (e == null)
        e = ExprConstant.TRUE;
    TempList<CommandScope> sc = new TempList<CommandScope>(cmd.scope.size());
    for (CommandScope et : cmd.scope) {
        Sig s = getRawSIG(et.sig.pos, et.sig.label);
        if (s == null)
            throw new ErrorSyntax(et.sig.pos, "The sig \"" + et.sig.label + "\" cannot be found.");
        sc.add(new CommandScope(null, s, et.isExact, et.startingScope, et.endingScope, et.increment));
    }
    if (cmd.nameExpr != null) {
        cmd.nameExpr.setReferenced(declaringClause);
    }
    return new Command(cmd.pos, cmd.nameExpr, cmd.label, cmd.check, cmd.overall, cmd.bitwidth, cmd.maxseq, cmd.expects, sc.makeConst(), exactSigs, globalFacts.and(e), parent);
}

Example 2 with Clause

use of edu.mit.csail.sdg.ast.Clause in project org.alloytools.alloy by AlloyTools.

the class OurSyntaxWidget method doNav.

private void doNav() {
    try {
        String text = pane.getText();
        int[] sel = getCurrentWordSelection(text);
        Pos pos = Pos.toPos(text, sel[0], sel[1]);
        if (pos == null)
            return;
        String currentWord = getCurrentWord();
        if (currentWord == null)
            return;
        CompModule module = getModule();
        if (module == null)
            return;
        Expr expr = module.find(pos);
        if (expr != null) {
            Clause clause = expr.referenced();
            if (clause != null) {
                Pos where = clause.pos();
                if (where.sameFile(module.pos()))
                    select(where);
                else {
                    OurSyntaxWidget ow = parent.open(where);
                    if (ow != null) {
                        ow.select(where);
                    }
                }
            }
        }
    } catch (Exception e) {
    // Ignore, this is a best effort thingy
    }
}

Example 3 with Clause

use of edu.mit.csail.sdg.ast.Clause in project org.alloytools.alloy by AlloyTools.

the class OurSyntaxWidget method getTooltip.

public String getTooltip(MouseEvent event) {
    try {
        int offset = pane.viewToModel(event.getPoint());
        CompModule module = getModule();
        if (module == null)
            return null;
        String text = pane.getText();
        Pos pos = Pos.toPos(text, offset, offset + 1);
        Expr expr = module.find(pos);
        if (expr instanceof ExprBad) {
            return expr.toString();
        }
        if (expr != null) {
            Clause referenced = expr.referenced();
            if (referenced != null) {
                String s = referenced.explain();
                String table = "<html><pre>" + s + "</pre></html>";
                s = table.replaceAll("\n", "<br/>");
                return s;
            } else if (expr instanceof ExprConstant) {
                String token = pos.substring(text);
                if (token != null) {
                    String match = expr.toString();
                    if (!Objects.equals(token, match))
                        return match;
                }
            }
        }
    } catch (Exception e) {
    // e.printStackTrace();
    // ignore compile errors etc.
    }
    return null;
}