Examples with StatContext kalang.antlr.KalangParser.StatContext used on opensource projects

Example 1 with StatContext

use of kalang.antlr.KalangParser.StatContext in project kalang by kasonyang.

the class AstBuilder method visit.

@Override
public Object visit(ParseTree tree) {
    if (tree == null) {
        System.err.print("visit null");
        Exception ex = new Exception();
        ex.printStackTrace(System.err);
        return null;
    }
    if (tree instanceof StatContext && returned) {
        diagnosisReporter.report(Diagnosis.Kind.ERROR, "unreachable statement", (StatContext) tree);
    }
    return super.visit(tree);
}

Example 2 with StatContext

use of kalang.antlr.KalangParser.StatContext in project kalang by kasonyang.

the class AstBuilder method visitBlockStmt.

public void visitBlockStmt(StatContext[] stats, BlockStmt blockStmt) {
    this.newFrame();
    if (stats == null) {
        return;
    }
    for (StatContext s : stats) {
        blockStmt.statements.add(visitStat(s));
    }
    this.popFrame();
}

Example 3 with StatContext

use of kalang.antlr.KalangParser.StatContext in project kalang by kasonyang.

the class AstBuilder method visitBlockStmt.

@Override
public AstNode visitBlockStmt(BlockStmtContext ctx) {
    BlockStmt bs = newBlock();
    List<StatContext> stats = ctx.stat();
    if (stats != null) {
        this.visitBlockStmt(stats.toArray(new StatContext[stats.size()]), bs);
    }
    mapAst(bs, ctx);
    popBlock();
    return bs;
}

Example 4 with StatContext

use of kalang.antlr.KalangParser.StatContext in project kalang by kasonyang.

the class AstBuilder method visitMethods.

private void visitMethods(ClassNode clazz) {
    thisClazz = clazz;
    for (MethodNode m : thisClazz.getDeclaredMethodNodes()) {
        BlockStmt mbody = m.getBody();
        StatContext[] stats = classNodeMetaBuilder.getStatContexts(m);
        if (stats != null) {
            method = m;
            returned = false;
            visitBlockStmt(stats, mbody);
            boolean needReturn = (m.getType() != null && !m.getType().equals(Types.VOID_TYPE));
            if (m.getBody() != null && needReturn && !returned) {
                this.diagnosisReporter.report(Diagnosis.Kind.ERROR, "Missing return statement in method:" + MethodUtil.toString(method), classNodeMetaBuilder.getMethodDeclContext(m));
            }
            new InitializationAnalyzer(compilationUnit, astLoader).check(clazz, m);
        }
        if (AstUtil.isConstructor(m)) {
            @SuppressWarnings("null") List<Statement> bodyStmts = mbody.statements;
            if (!AstUtil.hasConstructorCallStatement(bodyStmts)) {
                try {
                    bodyStmts.add(0, AstUtil.createDefaultSuperConstructorCall(thisClazz));
                } catch (MethodNotFoundException | AmbiguousMethodException ex) {
                    diagnosisReporter.report(Diagnosis.Kind.ERROR, "default constructor not found", classNodeMetaBuilder.getMethodDeclContext(m));
                }
            }
            // check super()
            int stmtsSize = mbody.statements.size();
            assert stmtsSize > 0;
            Statement firstStmt = mbody.statements.get(0);
            if (!AstUtil.isConstructorCallStatement(firstStmt)) {
                // TODO handle error
                throw new RuntimeException("missing constructor call");
            }
            mbody.statements.addAll(1, this.thisClazz.initStmts);
        }
    }
    for (ClassNode c : clazz.classes) {
        this.visitMethods(c);
    }
}