import { registerRuntimeHelpers, isBuiltInType, createSimpleExpression, createCompilerError, createObjectProperty, getConstantType, createCallExpression, TO_DISPLAY_STRING, transformModel as transformModel$1, findProp, hasDynamicKeyVBind, transformOn as transformOn$1, createCompoundExpression, isStaticExp, checkCompatEnabled, noopDirectiveTransform, baseCompile, baseParse } from '@vue/compiler-core';
export * from '@vue/compiler-core';
import { isVoidTag, isHTMLTag, isSVGTag, makeMap, parseStringStyle, capitalize, extend } from '@vue/shared';

const V_MODEL_RADIO = Symbol((process.env.NODE_ENV !== 'production') ? `vModelRadio` : ``);
const V_MODEL_CHECKBOX = Symbol((process.env.NODE_ENV !== 'production') ? `vModelCheckbox` : ``);
const V_MODEL_TEXT = Symbol((process.env.NODE_ENV !== 'production') ? `vModelText` : ``);
const V_MODEL_SELECT = Symbol((process.env.NODE_ENV !== 'production') ? `vModelSelect` : ``);
const V_MODEL_DYNAMIC = Symbol((process.env.NODE_ENV !== 'production') ? `vModelDynamic` : ``);
const V_ON_WITH_MODIFIERS = Symbol((process.env.NODE_ENV !== 'production') ? `vOnModifiersGuard` : ``);
const V_ON_WITH_KEYS = Symbol((process.env.NODE_ENV !== 'production') ? `vOnKeysGuard` : ``);
const V_SHOW = Symbol((process.env.NODE_ENV !== 'production') ? `vShow` : ``);
const TRANSITION = Symbol((process.env.NODE_ENV !== 'production') ? `Transition` : ``);
const TRANSITION_GROUP = Symbol((process.env.NODE_ENV !== 'production') ? `TransitionGroup` : ``);
registerRuntimeHelpers({
    [V_MODEL_RADIO]: `vModelRadio`,
    [V_MODEL_CHECKBOX]: `vModelCheckbox`,
    [V_MODEL_TEXT]: `vModelText`,
    [V_MODEL_SELECT]: `vModelSelect`,
    [V_MODEL_DYNAMIC]: `vModelDynamic`,
    [V_ON_WITH_MODIFIERS]: `withModifiers`,
    [V_ON_WITH_KEYS]: `withKeys`,
    [V_SHOW]: `vShow`,
    [TRANSITION]: `Transition`,
    [TRANSITION_GROUP]: `TransitionGroup`
});

/* eslint-disable no-restricted-globals */
let decoder;
function decodeHtmlBrowser(raw, asAttr = false) {
    if (!decoder) {
        decoder = document.createElement('div');
    }
    if (asAttr) {
        decoder.innerHTML = `<div foo="${raw.replace(/"/g, '&quot;')}">`;
        return decoder.children[0].getAttribute('foo');
    }
    else {
        decoder.innerHTML = raw;
        return decoder.textContent;
    }
}

const isRawTextContainer = /*#__PURE__*/ makeMap('style,iframe,script,noscript', true);
const parserOptions = {
    isVoidTag,
    isNativeTag: tag => isHTMLTag(tag) || isSVGTag(tag),
    isPreTag: tag => tag === 'pre',
    decodeEntities: decodeHtmlBrowser ,
    isBuiltInComponent: (tag) => {
        if (isBuiltInType(tag, `Transition`)) {
            return TRANSITION;
        }
        else if (isBuiltInType(tag, `TransitionGroup`)) {
            return TRANSITION_GROUP;
        }
    },
    // https://html.spec.whatwg.org/multipage/parsing.html#tree-construction-dispatcher
    getNamespace(tag, parent) {
        let ns = parent ? parent.ns : 0 /* HTML */;
        if (parent && ns === 2 /* MATH_ML */) {
            if (parent.tag === 'annotation-xml') {
                if (tag === 'svg') {
                    return 1 /* SVG */;
                }
                if (parent.props.some(a => a.type === 6 /* ATTRIBUTE */ &&
                    a.name === 'encoding' &&
                    a.value != null &&
                    (a.value.content === 'text/html' ||
                        a.value.content === 'application/xhtml+xml'))) {
                    ns = 0 /* HTML */;
                }
            }
            else if (/^m(?:[ions]|text)$/.test(parent.tag) &&
                tag !== 'mglyph' &&
                tag !== 'malignmark') {
                ns = 0 /* HTML */;
            }
        }
        else if (parent && ns === 1 /* SVG */) {
            if (parent.tag === 'foreignObject' ||
                parent.tag === 'desc' ||
                parent.tag === 'title') {
                ns = 0 /* HTML */;
            }
        }
        if (ns === 0 /* HTML */) {
            if (tag === 'svg') {
                return 1 /* SVG */;
            }
            if (tag === 'math') {
                return 2 /* MATH_ML */;
            }
        }
        return ns;
    },
    // https://html.spec.whatwg.org/multipage/parsing.html#parsing-html-fragments
    getTextMode({ tag, ns }) {
        if (ns === 0 /* HTML */) {
            if (tag === 'textarea' || tag === 'title') {
                return 1 /* RCDATA */;
            }
            if (isRawTextContainer(tag)) {
                return 2 /* RAWTEXT */;
            }
        }
        return 0 /* DATA */;
    }
};

// Parse inline CSS strings for static style attributes into an object.
// This is a NodeTransform since it works on the static `style` attribute and
// converts it into a dynamic equivalent:
// style="color: red" -> :style='{ "color": "red" }'
// It is then processed by `transformElement` and included in the generated
// props.
const transformStyle = node => {
    if (node.type === 1 /* ELEMENT */) {
        node.props.forEach((p, i) => {
            if (p.type === 6 /* ATTRIBUTE */ && p.name === 'style' && p.value) {
                // replace p with an expression node
                node.props[i] = {
                    type: 7 /* DIRECTIVE */,
                    name: `bind`,
                    arg: createSimpleExpression(`style`, true, p.loc),
                    exp: parseInlineCSS(p.value.content, p.loc),
                    modifiers: [],
                    loc: p.loc
                };
            }
        });
    }
};
const parseInlineCSS = (cssText, loc) => {
    const normalized = parseStringStyle(cssText);
    return createSimpleExpression(JSON.stringify(normalized), false, loc, 3 /* CAN_STRINGIFY */);
};

function createDOMCompilerError(code, loc) {
    return createCompilerError(code, loc, (process.env.NODE_ENV !== 'production') || !true ? DOMErrorMessages : undefined);
}
const DOMErrorMessages = {
    [50 /* X_V_HTML_NO_EXPRESSION */]: `v-html is missing expression.`,
    [51 /* X_V_HTML_WITH_CHILDREN */]: `v-html will override element children.`,
    [52 /* X_V_TEXT_NO_EXPRESSION */]: `v-text is missing expression.`,
    [53 /* X_V_TEXT_WITH_CHILDREN */]: `v-text will override element children.`,
    [54 /* X_V_MODEL_ON_INVALID_ELEMENT */]: `v-model can only be used on <input>, <textarea> and <select> elements.`,
    [55 /* X_V_MODEL_ARG_ON_ELEMENT */]: `v-model argument is not supported on plain elements.`,
    [56 /* X_V_MODEL_ON_FILE_INPUT_ELEMENT */]: `v-model cannot be used on file inputs since they are read-only. Use a v-on:change listener instead.`,
    [57 /* X_V_MODEL_UNNECESSARY_VALUE */]: `Unnecessary value binding used alongside v-model. It will interfere with v-model's behavior.`,
    [58 /* X_V_SHOW_NO_EXPRESSION */]: `v-show is missing expression.`,
    [59 /* X_TRANSITION_INVALID_CHILDREN */]: `<Transition> expects exactly one child element or component.`,
    [60 /* X_IGNORED_SIDE_EFFECT_TAG */]: `Tags with side effect (<script> and <style>) are ignored in client component templates.`
};

const transformVHtml = (dir, node, context) => {
    const { exp, loc } = dir;
    if (!exp) {
        context.onError(createDOMCompilerError(50 /* X_V_HTML_NO_EXPRESSION */, loc));
    }
    if (node.children.length) {
        context.onError(createDOMCompilerError(51 /* X_V_HTML_WITH_CHILDREN */, loc));
        node.children.length = 0;
    }
    return {
        props: [
            createObjectProperty(createSimpleExpression(`innerHTML`, true, loc), exp || createSimpleExpression('', true))
        ]
    };
};

const transformVText = (dir, node, context) => {
    const { exp, loc } = dir;
    if (!exp) {
        context.onError(createDOMCompilerError(52 /* X_V_TEXT_NO_EXPRESSION */, loc));
    }
    if (node.children.length) {
        context.onError(createDOMCompilerError(53 /* X_V_TEXT_WITH_CHILDREN */, loc));
        node.children.length = 0;
    }
    return {
        props: [
            createObjectProperty(createSimpleExpression(`textContent`, true), exp
                ? getConstantType(exp, context) > 0
                    ? exp
                    : createCallExpression(context.helperString(TO_DISPLAY_STRING), [exp], loc)
                : createSimpleExpression('', true))
        ]
    };
};

const transformModel = (dir, node, context) => {
    const baseResult = transformModel$1(dir, node, context);
    // base transform has errors OR component v-model (only need props)
    if (!baseResult.props.length || node.tagType === 1 /* COMPONENT */) {
        return baseResult;
    }
    if (dir.arg) {
        context.onError(createDOMCompilerError(55 /* X_V_MODEL_ARG_ON_ELEMENT */, dir.arg.loc));
    }
    function checkDuplicatedValue() {
        const value = findProp(node, 'value');
        if (value) {
            context.onError(createDOMCompilerError(57 /* X_V_MODEL_UNNECESSARY_VALUE */, value.loc));
        }
    }
    const { tag } = node;
    const isCustomElement = context.isCustomElement(tag);
    if (tag === 'input' ||
        tag === 'textarea' ||
        tag === 'select' ||
        isCustomElement) {
        let directiveToUse = V_MODEL_TEXT;
        let isInvalidType = false;
        if (tag === 'input' || isCustomElement) {
            const type = findProp(node, `type`);
            if (type) {
                if (type.type === 7 /* DIRECTIVE */) {
                    // :type="foo"
                    directiveToUse = V_MODEL_DYNAMIC;
                }
                else if (type.value) {
                    switch (type.value.content) {
                        case 'radio':
                            directiveToUse = V_MODEL_RADIO;
                            break;
                        case 'checkbox':
                            directiveToUse = V_MODEL_CHECKBOX;
                            break;
                        case 'file':
                            isInvalidType = true;
                            context.onError(createDOMCompilerError(56 /* X_V_MODEL_ON_FILE_INPUT_ELEMENT */, dir.loc));
                            break;
                        default:
                            // text type
                            (process.env.NODE_ENV !== 'production') && checkDuplicatedValue();
                            break;
                    }
                }
            }
            else if (hasDynamicKeyVBind(node)) {
                // element has bindings with dynamic keys, which can possibly contain
                // "type".
                directiveToUse = V_MODEL_DYNAMIC;
            }
            else {
                // text type
                (process.env.NODE_ENV !== 'production') && checkDuplicatedValue();
            }
        }
        else if (tag === 'select') {
            directiveToUse = V_MODEL_SELECT;
        }
        else {
            // textarea
            (process.env.NODE_ENV !== 'production') && checkDuplicatedValue();
        }
        // inject runtime directive
        // by returning the helper symbol via needRuntime
        // the import will replaced a resolveDirective call.
        if (!isInvalidType) {
            baseResult.needRuntime = context.helper(directiveToUse);
        }
    }
    else {
        context.onError(createDOMCompilerError(54 /* X_V_MODEL_ON_INVALID_ELEMENT */, dir.loc));
    }
    // native vmodel doesn't need the `modelValue` props since they are also
    // passed to the runtime as `binding.value`. removing it reduces code size.
    baseResult.props = baseResult.props.filter(p => !(p.key.type === 4 /* SIMPLE_EXPRESSION */ &&
        p.key.content === 'modelValue'));
    return baseResult;
};

const isEventOptionModifier = /*#__PURE__*/ makeMap(`passive,once,capture`);
const isNonKeyModifier = /*#__PURE__*/ makeMap(
// event propagation management
`stop,prevent,self,` +
    // system modifiers + exact
    `ctrl,shift,alt,meta,exact,` +
    // mouse
    `middle`);
// left & right could be mouse or key modifiers based on event type
const maybeKeyModifier = /*#__PURE__*/ makeMap('left,right');
const isKeyboardEvent = /*#__PURE__*/ makeMap(`onkeyup,onkeydown,onkeypress`, true);
const resolveModifiers = (key, modifiers, context, loc) => {
    const keyModifiers = [];
    const nonKeyModifiers = [];
    const eventOptionModifiers = [];
    for (let i = 0; i < modifiers.length; i++) {
        const modifier = modifiers[i];
        if (modifier === 'native' &&
            checkCompatEnabled("COMPILER_V_ON_NATIVE" /* COMPILER_V_ON_NATIVE */, context, loc)) {
            eventOptionModifiers.push(modifier);
        }
        else if (isEventOptionModifier(modifier)) {
            // eventOptionModifiers: modifiers for addEventListener() options,
            // e.g. .passive & .capture
            eventOptionModifiers.push(modifier);
        }
        else {
            // runtimeModifiers: modifiers that needs runtime guards
            if (maybeKeyModifier(modifier)) {
                if (isStaticExp(key)) {
                    if (isKeyboardEvent(key.content)) {
                        keyModifiers.push(modifier);
                    }
                    else {
                        nonKeyModifiers.push(modifier);
                    }
                }
                else {
                    keyModifiers.push(modifier);
                    nonKeyModifiers.push(modifier);
                }
            }
            else {
                if (isNonKeyModifier(modifier)) {
                    nonKeyModifiers.push(modifier);
                }
                else {
                    keyModifiers.push(modifier);
                }
            }
        }
    }
    return {
        keyModifiers,
        nonKeyModifiers,
        eventOptionModifiers
    };
};
const transformClick = (key, event) => {
    const isStaticClick = isStaticExp(key) && key.content.toLowerCase() === 'onclick';
    return isStaticClick
        ? createSimpleExpression(event, true)
        : key.type !== 4 /* SIMPLE_EXPRESSION */
            ? createCompoundExpression([
                `(`,
                key,
                `) === "onClick" ? "${event}" : (`,
                key,
                `)`
            ])
            : key;
};
const transformOn = (dir, node, context) => {
    return transformOn$1(dir, node, context, baseResult => {
        const { modifiers } = dir;
        if (!modifiers.length)
            return baseResult;
        let { key, value: handlerExp } = baseResult.props[0];
        const { keyModifiers, nonKeyModifiers, eventOptionModifiers } = resolveModifiers(key, modifiers, context, dir.loc);
        // normalize click.right and click.middle since they don't actually fire
        if (nonKeyModifiers.includes('right')) {
            key = transformClick(key, `onContextmenu`);
        }
        if (nonKeyModifiers.includes('middle')) {
            key = transformClick(key, `onMouseup`);
        }
        if (nonKeyModifiers.length) {
            handlerExp = createCallExpression(context.helper(V_ON_WITH_MODIFIERS), [
                handlerExp,
                JSON.stringify(nonKeyModifiers)
            ]);
        }
        if (keyModifiers.length &&
            // if event name is dynamic, always wrap with keys guard
            (!isStaticExp(key) || isKeyboardEvent(key.content))) {
            handlerExp = createCallExpression(context.helper(V_ON_WITH_KEYS), [
                handlerExp,
                JSON.stringify(keyModifiers)
            ]);
        }
        if (eventOptionModifiers.length) {
            const modifierPostfix = eventOptionModifiers.map(capitalize).join('');
            key = isStaticExp(key)
                ? createSimpleExpression(`${key.content}${modifierPostfix}`, true)
                : createCompoundExpression([`(`, key, `) + "${modifierPostfix}"`]);
        }
        return {
            props: [createObjectProperty(key, handlerExp)]
        };
    });
};

const transformShow = (dir, node, context) => {
    const { exp, loc } = dir;
    if (!exp) {
        context.onError(createDOMCompilerError(58 /* X_V_SHOW_NO_EXPRESSION */, loc));
    }
    return {
        props: [],
        needRuntime: context.helper(V_SHOW)
    };
};

const transformTransition = (node, context) => {
    if (node.type === 1 /* ELEMENT */ &&
        node.tagType === 1 /* COMPONENT */) {
        const component = context.isBuiltInComponent(node.tag);
        if (component === TRANSITION) {
            return () => {
                if (!node.children.length) {
                    return;
                }
                // warn multiple transition children
                if (hasMultipleChildren(node)) {
                    context.onError(createDOMCompilerError(59 /* X_TRANSITION_INVALID_CHILDREN */, {
                        start: node.children[0].loc.start,
                        end: node.children[node.children.length - 1].loc.end,
                        source: ''
                    }));
                }
                // check if it's s single child w/ v-show
                // if yes, inject "persisted: true" to the transition props
                const child = node.children[0];
                if (child.type === 1 /* ELEMENT */) {
                    for (const p of child.props) {
                        if (p.type === 7 /* DIRECTIVE */ && p.name === 'show') {
                            node.props.push({
                                type: 6 /* ATTRIBUTE */,
                                name: 'persisted',
                                value: undefined,
                                loc: node.loc
                            });
                        }
                    }
                }
            };
        }
    }
};
function hasMultipleChildren(node) {
    // #1352 filter out potential comment nodes.
    const children = (node.children = node.children.filter(c => c.type !== 3 /* COMMENT */ &&
        !(c.type === 2 /* TEXT */ && !c.content.trim())));
    const child = children[0];
    return (children.length !== 1 ||
        child.type === 11 /* FOR */ ||
        (child.type === 9 /* IF */ && child.branches.some(hasMultipleChildren)));
}

const ignoreSideEffectTags = (node, context) => {
    if (node.type === 1 /* ELEMENT */ &&
        node.tagType === 0 /* ELEMENT */ &&
        (node.tag === 'script' || node.tag === 'style')) {
        context.onError(createDOMCompilerError(60 /* X_IGNORED_SIDE_EFFECT_TAG */, node.loc));
        context.removeNode();
    }
};

const DOMNodeTransforms = [
    transformStyle,
    ...((process.env.NODE_ENV !== 'production') ? [transformTransition] : [])
];
const DOMDirectiveTransforms = {
    cloak: noopDirectiveTransform,
    html: transformVHtml,
    text: transformVText,
    model: transformModel,
    on: transformOn,
    show: transformShow
};
function compile(template, options = {}) {
    return baseCompile(template, extend({}, parserOptions, options, {
        nodeTransforms: [
            // ignore <script> and <tag>
            // this is not put inside DOMNodeTransforms because that list is used
            // by compiler-ssr to generate vnode fallback branches
            ignoreSideEffectTags,
            ...DOMNodeTransforms,
            ...(options.nodeTransforms || [])
        ],
        directiveTransforms: extend({}, DOMDirectiveTransforms, options.directiveTransforms || {}),
        transformHoist: null 
    }));
}
function parse(template, options = {}) {
    return baseParse(template, extend({}, parserOptions, options));
}

export { DOMDirectiveTransforms, DOMNodeTransforms, TRANSITION, TRANSITION_GROUP, V_MODEL_CHECKBOX, V_MODEL_DYNAMIC, V_MODEL_RADIO, V_MODEL_SELECT, V_MODEL_TEXT, V_ON_WITH_KEYS, V_ON_WITH_MODIFIERS, V_SHOW, compile, createDOMCompilerError, parse, parserOptions, transformStyle };