Examples with Expression_listContext jetbrick.template.parser.grammer.JetTemplateParser.Expression_listContext used on opensource projects

Example 1 with Expression_listContext

use of jetbrick.template.parser.grammer.JetTemplateParser.Expression_listContext in project jetbrick-template-1x by subchen.

the class JetTemplateCodeVisitor method visitInclude_directive.

@Override
public Code visitInclude_directive(Include_directiveContext ctx) {
    Expression_listContext expression_list = ctx.expression_list();
    SegmentListCode childrenCode = (SegmentListCode) expression_list.accept(this);
    if (childrenCode.size() > 2) {
        throw reportError("Arguments mismatch for #include directive.", ctx);
    }
    // argument 1: file
    SegmentCode fileCode = childrenCode.getChild(0);
    ExpressionContext fileExpression = expression_list.expression(0);
    if (!String.class.equals(fileCode.getKlass())) {
        throw reportError("Type mismatch: the first argument cannot convert from " + fileCode.getKlassName() + " to String", fileExpression);
    }
    // argument 2: parameters
    SegmentCode parametersCode = null;
    if (childrenCode.size() > 1) {
        parametersCode = childrenCode.getChild(1);
        if (!(Map.class.equals(parametersCode.getKlass()))) {
            throw reportError("Type mismatch: the second argument cannot convert from " + parametersCode.getKlassName() + " to Map", expression_list.expression(1));
        }
    }
    // 如果 file 是常量，那么进行 file.exists() 校验
    if (fileExpression instanceof Expr_constantContext) {
        String file = fileCode.toString();
        file = file.substring(1, file.length() - 1);
        file = StringEscapeUtils.unescapeJava(file);
        file = PathUtils.getAbsolutionName(resource.getName(), file);
        if (!engine.lookupResource(file)) {
            throw reportError("FileNotFoundException: " + file, fileExpression);
        }
    }
    // 生成代码
    StringBuilder source = new StringBuilder();
    source.append("JetUtils.asInclude($ctx, ");
    source.append(fileCode.toString());
    source.append(", (Map<String, Object>)");
    source.append((parametersCode != null) ? parametersCode.toString() : "null");
    source.append("); // line: ");
    source.append(ctx.getStart().getLine());
    return scopeCode.createLineCode(source.toString());
}

Example 2 with Expression_listContext

use of jetbrick.template.parser.grammer.JetTemplateParser.Expression_listContext in project jetbrick-template-1x by subchen.

the class JetTemplateCodeVisitor method visitTag_directive.

@Override
public Code visitTag_directive(Tag_directiveContext ctx) {
    String text = ctx.getChild(0).getText();
    String name = text.substring(5, text.length() - 1).trim();
    TagCode tagCode = scopeCode.createTagCode();
    tagCode.setTagId(getUid("tag"));
    scopeCode = tagCode.getMethodCode();
    scopeCode.define(Code.CONTEXT_NAME, TypedKlass.JetContext);
    // add body content
    scopeCode.setBodyCode(ctx.block().accept(this));
    scopeCode = scopeCode.pop();
    // finding tag function
    Expression_listContext expression_list = ctx.expression_list();
    SegmentListCode segmentListCode = (expression_list == null) ? SegmentListCode.EMPTY : (SegmentListCode) expression_list.accept(this);
    Class<?>[] parameterTypes = segmentListCode.getParameterTypes(JetTagContext.class);
    Method method = resolver.resolveTagMethod(name, parameterTypes);
    if (method == null) {
        throw reportError("Undefined tag definition: " + getMethodSignature(name, parameterTypes), ctx);
    }
    tagCode.setMethod(method);
    tagCode.setExpressionListCode(segmentListCode);
    return tagCode;
}

Example 3 with Expression_listContext

use of jetbrick.template.parser.grammer.JetTemplateParser.Expression_listContext in project jetbrick-template-1x by subchen.

the class JetTemplateCodeVisitor method visitExpr_static_method_invocation.

@Override
public Code visitExpr_static_method_invocation(Expr_static_method_invocationContext ctx) {
    SegmentCode static_type_name_code = (SegmentCode) ctx.static_type_name().accept(this);
    String typeName = static_type_name_code.toString();
    String name = ctx.IDENTIFIER().getText();
    // 获取静态 Class
    Class<?> beanClass = resolver.resolveClass(typeName);
    if (beanClass == null) {
        throw reportError("java.lang.ClassNotFoundException: " + typeName, static_type_name_code.getNode());
    }
    // 处理参数
    Expression_listContext expression_list = ctx.expression_list();
    SegmentListCode segmentListCode = (expression_list == null) ? SegmentListCode.EMPTY : (SegmentListCode) expression_list.accept(this);
    Class<?>[] parameterTypes = segmentListCode.getParameterTypes();
    Method method = resolver.resolveStaticMethod(beanClass, name, parameterTypes);
    if (method == null) {
        throw reportError("The static method " + getMethodSignature(name, parameterTypes) + " is undefined for the type " + beanClass.getName(), ctx.IDENTIFIER());
    }
    if (securityManager != null) {
        securityManager.checkMemberAccess(method);
    }
    // 生成代码
    StringBuilder sb = new StringBuilder();
    sb.append(ClassUtils.getShortClassName(method.getDeclaringClass()));
    sb.append('.');
    sb.append(name);
    sb.append('(');
    sb.append(segmentListCode.toString());
    sb.append(')');
    TypedKlass resultKlass = TypedKlassUtils.getMethodReturnTypedKlass(method);
    return new SegmentCode(resultKlass, sb.toString(), ctx);
}

Example 4 with Expression_listContext

use of jetbrick.template.parser.grammer.JetTemplateParser.Expression_listContext in project jetbrick-template-1x by subchen.

the class JetTemplateCodeVisitor method visitExpr_method_invocation.

@Override
public Code visitExpr_method_invocation(Expr_method_invocationContext ctx) {
    // 处理参数
    Expression_listContext expression_list = ctx.expression_list();
    SegmentListCode segmentListCode = (expression_list == null) ? SegmentListCode.EMPTY : (SegmentListCode) expression_list.accept(this);
    Class<?>[] parameterTypes = segmentListCode.getParameterTypes();
    // 查找方法
    SegmentCode code = (SegmentCode) ctx.expression().accept(this);
    assert_not_null_constantContext(code.getNode());
    code = code.asBoxedSegmentCode();
    Class<?> beanClass = code.getKlass();
    String name = ctx.IDENTIFIER().getText();
    Method bean_method = resolver.resolveMethod(beanClass, name, parameterTypes);
    Method tool_method = (bean_method != null) ? null : resolver.resolveToolMethod(beanClass, name, parameterTypes);
    boolean tool_advanced = false;
    if (bean_method == null && tool_method == null) {
        tool_method = resolver.resolveToolMethod_advanced(beanClass, name, parameterTypes);
        tool_advanced = true;
    }
    if (bean_method == null && tool_method == null) {
        // reportError
        StringBuilder err = new StringBuilder(128);
        err.append("The method ").append(getMethodSignature(name, parameterTypes));
        err.append(" is undefined for the type ");
        err.append(beanClass.getName());
        err.append('.');
        if (Object.class.equals(beanClass)) {
            err.append("\n advise: ");
            if (code.getNode() instanceof Expr_identifierContext) {
                err.append("Please use #define(type ");
                err.append(code.getNode().getText());
                err.append(") to define variable type.");
            } else {
                err.append("Please use #set(type xxx = ");
                err.append(code.getNode().getText());
                err.append(") to define expression type.");
            }
        }
        throw reportError(err.toString(), ctx.IDENTIFIER());
    }
    boolean isSafeCall = globalSafeCall || "?.".equals(ctx.getChild(1).getText());
    // 得到方法的返回类型
    Method method = (bean_method == null) ? tool_method : bean_method;
    if (securityManager != null) {
        securityManager.checkMemberAccess(method);
    }
    TypedKlass resultKlass = TypedKlassUtils.getMethodReturnTypedKlass(method);
    boolean boxWhenSafeCall = resultKlass.isPrimitive();
    if (isSafeCall) {
        resultKlass = resultKlass.asBoxedTypedKlass();
    }
    // 生成code
    StringBuilder sb = new StringBuilder(64);
    if (tool_method != null) {
        // tool method
        if (isSafeCall) {
            // 安全调用，防止 NullPointException
            sb.append('(');
            sb.append(code.toString());
            sb.append("==null)?(");
            sb.append(resultKlass.getSource());
            sb.append(")null:");
            if (boxWhenSafeCall) {
                sb.append(resultKlass.getSource()).append(".valueOf(");
            }
        }
        sb.append(ClassUtils.getShortClassName(tool_method.getDeclaringClass()));
        sb.append('.');
        sb.append(name);
        sb.append('(');
        sb.append(code.toString());
        if (tool_advanced) {
            sb.append(",$ctx");
        }
        if (segmentListCode.size() > 0) {
            sb.append(',');
        }
    } else {
        if (isSafeCall) {
            // 安全调用，防止 NullPointException
            sb.append('(');
            sb.append(code.toString());
            sb.append("==null)?(");
            sb.append(resultKlass.getSource());
            sb.append(")null:");
            if (boxWhenSafeCall) {
                sb.append(resultKlass.getSource()).append(".valueOf(");
            }
        }
        sb.append(code.toString());
        sb.append('.');
        sb.append(name);
        sb.append('(');
    }
    if (segmentListCode.size() > 0) {
        sb.append(segmentListCode.toString());
    }
    sb.append(')');
    if (isSafeCall) {
        // 为了安全起见，用()包起来
        if (boxWhenSafeCall) {
            sb.append(')');
        }
        sb.insert(0, '(').append(')');
    }
    return new SegmentCode(resultKlass, sb.toString(), ctx);
}

Example 5 with Expression_listContext

use of jetbrick.template.parser.grammer.JetTemplateParser.Expression_listContext in project jetbrick-template-1x by subchen.

the class JetTemplateCodeVisitor method visitExpr_new_object.

@Override
public Code visitExpr_new_object(Expr_new_objectContext ctx) {
    SegmentCode code = (SegmentCode) ctx.type().accept(this);
    Expression_listContext expression_list = ctx.expression_list();
    SegmentListCode segmentListCode = (expression_list == null) ? SegmentListCode.EMPTY : (SegmentListCode) expression_list.accept(this);
    Class<?>[] parameterTypes = segmentListCode.getParameterTypes();
    // 查找对应的构造函数
    Class<?> beanClass = code.getKlass();
    Constructor<?> constructor = resolver.resolveConstructor(beanClass, parameterTypes);
    if (constructor == null) {
        // reportError
        StringBuilder err = new StringBuilder(128);
        err.append("The constructor ");
        err.append(getMethodSignature(beanClass.getSimpleName(), parameterTypes));
        err.append(" is undefined for the type ");
        err.append(beanClass.getName());
        err.append('.');
        throw reportError(err.toString(), ctx.type());
    }
    // 生成代码
    StringBuilder source = new StringBuilder(32);
    source.append("(new ").append(code.toString()).append('(');
    if (segmentListCode.size() > 0) {
        source.append(segmentListCode.toString());
    }
    source.append("))");
    return new SegmentCode(code.getTypedKlass(), source.toString(), ctx);
}