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

Example 1 with VarDeclContext

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

the class AstBuilder method visitLocalVarDecl.

@Override
public Statement visitLocalVarDecl(LocalVarDeclContext ctx) {
    MultiStmt ms = new MultiStmt();
    for (VarDeclContext v : ctx.varDecl()) {
        TypeContext varType = v.varType;
        Type exceptedType = varType == null ? null : parseType(varType);
        ExprNode initExpr = null;
        ExpressionContext initExprContext = v.expression();
        if (initExprContext != null) {
            if (initExprContext instanceof LiteralExprContext) {
                initExpr = this.parseLiteral(((LiteralExprContext) initExprContext).literal(), exceptedType);
            } else {
                initExpr = visitExpression(initExprContext);
            }
        }
        VarInfo varInfo = varDecl(v, initExpr == null ? Types.getRootType() : initExpr.getType());
        LocalVarNode localVar = this.declareLocalVar(varInfo.name, varInfo.type, varInfo.modifier, ctx);
        if (localVar == null)
            return null;
        VarDeclStmt vds = new VarDeclStmt(localVar);
        ms.statements.add(vds);
        if (initExpr != null) {
            AssignExpr assignExpr = new AssignExpr(new VarExpr(localVar), initExpr);
            mapAst(assignExpr, v);
            ms.statements.add(new ExprStmt(assignExpr));
        }
        mapAst(localVar, ctx);
    }
    return ms;
}

Example 2 with VarDeclContext

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

the class AstBuilder method visitFieldDecl.

@Override
public Void visitFieldDecl(FieldDeclContext ctx) {
    int fieldModifier = this.parseModifier(ctx.varModifier());
    for (VarDeclContext vd : ctx.varDecl()) {
        ExprNode initExpr;
        if (vd.expression() != null) {
            initExpr = visitExpression(vd.expression());
        } else {
            initExpr = null;
        }
        VarInfo varInfo = varDecl(vd, initExpr == null ? Types.getRootType() : initExpr.getType());
        varInfo.modifier |= fieldModifier;
        FieldNode fieldNode = thisClazz.createField(varInfo.type, varInfo.name, varInfo.modifier);
        // TODO simplify it
        if (initExpr != null) {
            if (AstUtil.isStatic(fieldNode.modifier)) {
                thisClazz.staticInitStmts.add(new ExprStmt(new AssignExpr(new StaticFieldExpr(new ClassReference(thisClazz), fieldNode), initExpr)));
            } else {
                thisClazz.initStmts.add(new ExprStmt(new AssignExpr(new ObjectFieldExpr(new ThisExpr(getThisType()), fieldNode), initExpr)));
            }
        }
    }
    return null;
}