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package.dist.compiler-ssr.cjs.js Maven / Gradle / Ivy
/**
* @vue/compiler-ssr v3.4.34
* (c) 2018-present Yuxi (Evan) You and Vue contributors
* @license MIT
**/
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var compilerDom = require('@vue/compiler-dom');
var shared = require('@vue/shared');
const SSR_INTERPOLATE = Symbol(`ssrInterpolate`);
const SSR_RENDER_VNODE = Symbol(`ssrRenderVNode`);
const SSR_RENDER_COMPONENT = Symbol(`ssrRenderComponent`);
const SSR_RENDER_SLOT = Symbol(`ssrRenderSlot`);
const SSR_RENDER_SLOT_INNER = Symbol(`ssrRenderSlotInner`);
const SSR_RENDER_CLASS = Symbol(`ssrRenderClass`);
const SSR_RENDER_STYLE = Symbol(`ssrRenderStyle`);
const SSR_RENDER_ATTRS = Symbol(`ssrRenderAttrs`);
const SSR_RENDER_ATTR = Symbol(`ssrRenderAttr`);
const SSR_RENDER_DYNAMIC_ATTR = Symbol(`ssrRenderDynamicAttr`);
const SSR_RENDER_LIST = Symbol(`ssrRenderList`);
const SSR_INCLUDE_BOOLEAN_ATTR = Symbol(`ssrIncludeBooleanAttr`);
const SSR_LOOSE_EQUAL = Symbol(`ssrLooseEqual`);
const SSR_LOOSE_CONTAIN = Symbol(`ssrLooseContain`);
const SSR_RENDER_DYNAMIC_MODEL = Symbol(`ssrRenderDynamicModel`);
const SSR_GET_DYNAMIC_MODEL_PROPS = Symbol(`ssrGetDynamicModelProps`);
const SSR_RENDER_TELEPORT = Symbol(`ssrRenderTeleport`);
const SSR_RENDER_SUSPENSE = Symbol(`ssrRenderSuspense`);
const SSR_GET_DIRECTIVE_PROPS = Symbol(`ssrGetDirectiveProps`);
const ssrHelpers = {
[SSR_INTERPOLATE]: `ssrInterpolate`,
[SSR_RENDER_VNODE]: `ssrRenderVNode`,
[SSR_RENDER_COMPONENT]: `ssrRenderComponent`,
[SSR_RENDER_SLOT]: `ssrRenderSlot`,
[SSR_RENDER_SLOT_INNER]: `ssrRenderSlotInner`,
[SSR_RENDER_CLASS]: `ssrRenderClass`,
[SSR_RENDER_STYLE]: `ssrRenderStyle`,
[SSR_RENDER_ATTRS]: `ssrRenderAttrs`,
[SSR_RENDER_ATTR]: `ssrRenderAttr`,
[SSR_RENDER_DYNAMIC_ATTR]: `ssrRenderDynamicAttr`,
[SSR_RENDER_LIST]: `ssrRenderList`,
[SSR_INCLUDE_BOOLEAN_ATTR]: `ssrIncludeBooleanAttr`,
[SSR_LOOSE_EQUAL]: `ssrLooseEqual`,
[SSR_LOOSE_CONTAIN]: `ssrLooseContain`,
[SSR_RENDER_DYNAMIC_MODEL]: `ssrRenderDynamicModel`,
[SSR_GET_DYNAMIC_MODEL_PROPS]: `ssrGetDynamicModelProps`,
[SSR_RENDER_TELEPORT]: `ssrRenderTeleport`,
[SSR_RENDER_SUSPENSE]: `ssrRenderSuspense`,
[SSR_GET_DIRECTIVE_PROPS]: `ssrGetDirectiveProps`
};
compilerDom.registerRuntimeHelpers(ssrHelpers);
const ssrTransformIf = compilerDom.createStructuralDirectiveTransform(
/^(if|else|else-if)$/,
compilerDom.processIf
);
function ssrProcessIf(node, context, disableNestedFragments = false, disableCommentAsIfAlternate = false) {
const [rootBranch] = node.branches;
const ifStatement = compilerDom.createIfStatement(
rootBranch.condition,
processIfBranch(rootBranch, context, disableNestedFragments)
);
context.pushStatement(ifStatement);
let currentIf = ifStatement;
for (let i = 1; i < node.branches.length; i++) {
const branch = node.branches[i];
const branchBlockStatement = processIfBranch(
branch,
context,
disableNestedFragments
);
if (branch.condition) {
currentIf = currentIf.alternate = compilerDom.createIfStatement(
branch.condition,
branchBlockStatement
);
} else {
currentIf.alternate = branchBlockStatement;
}
}
if (!currentIf.alternate && !disableCommentAsIfAlternate) {
currentIf.alternate = compilerDom.createBlockStatement([
compilerDom.createCallExpression(`_push`, ["``"])
]);
}
}
function processIfBranch(branch, context, disableNestedFragments = false) {
const { children } = branch;
const needFragmentWrapper = !disableNestedFragments && (children.length !== 1 || children[0].type !== 1) && // optimize away nested fragments when the only child is a ForNode
!(children.length === 1 && children[0].type === 11);
return processChildrenAsStatement(branch, context, needFragmentWrapper);
}
const ssrTransformFor = compilerDom.createStructuralDirectiveTransform(
"for",
compilerDom.processFor
);
function ssrProcessFor(node, context, disableNestedFragments = false) {
const needFragmentWrapper = !disableNestedFragments && (node.children.length !== 1 || node.children[0].type !== 1);
const renderLoop = compilerDom.createFunctionExpression(
compilerDom.createForLoopParams(node.parseResult)
);
renderLoop.body = processChildrenAsStatement(
node,
context,
needFragmentWrapper
);
if (!disableNestedFragments) {
context.pushStringPart(``);
}
context.pushStatement(
compilerDom.createCallExpression(context.helper(SSR_RENDER_LIST), [
node.source,
renderLoop
])
);
if (!disableNestedFragments) {
context.pushStringPart(``);
}
}
const ssrTransformSlotOutlet = (node, context) => {
if (compilerDom.isSlotOutlet(node)) {
const { slotName, slotProps } = compilerDom.processSlotOutlet(node, context);
const args = [
`_ctx.$slots`,
slotName,
slotProps || `{}`,
// fallback content placeholder. will be replaced in the process phase
`null`,
`_push`,
`_parent`
];
if (context.scopeId && context.slotted !== false) {
args.push(`"${context.scopeId}-s"`);
}
let method = SSR_RENDER_SLOT;
let parent = context.parent;
if (parent) {
const children = parent.children;
if (parent.type === 10) {
parent = context.grandParent;
}
let componentType;
if (parent.type === 1 && parent.tagType === 1 && ((componentType = compilerDom.resolveComponentType(parent, context, true)) === compilerDom.TRANSITION || componentType === compilerDom.TRANSITION_GROUP) && children.filter((c) => c.type === 1).length === 1) {
method = SSR_RENDER_SLOT_INNER;
if (!(context.scopeId && context.slotted !== false)) {
args.push("null");
}
args.push("true");
}
}
node.ssrCodegenNode = compilerDom.createCallExpression(context.helper(method), args);
}
};
function ssrProcessSlotOutlet(node, context) {
const renderCall = node.ssrCodegenNode;
if (node.children.length) {
const fallbackRenderFn = compilerDom.createFunctionExpression([]);
fallbackRenderFn.body = processChildrenAsStatement(node, context);
renderCall.arguments[3] = fallbackRenderFn;
}
if (context.withSlotScopeId) {
const slotScopeId = renderCall.arguments[6];
renderCall.arguments[6] = slotScopeId ? `${slotScopeId} + _scopeId` : `_scopeId`;
}
context.pushStatement(node.ssrCodegenNode);
}
function createSSRCompilerError(code, loc) {
return compilerDom.createCompilerError(code, loc, SSRErrorMessages);
}
const SSRErrorMessages = {
[65]: `Unsafe attribute name for SSR.`,
[66]: `Missing the 'to' prop on teleport element.`,
[67]: `Invalid AST node during SSR transform.`
};
function ssrProcessTeleport(node, context) {
const targetProp = compilerDom.findProp(node, "to");
if (!targetProp) {
context.onError(
createSSRCompilerError(66, node.loc)
);
return;
}
let target;
if (targetProp.type === 6) {
target = targetProp.value && compilerDom.createSimpleExpression(targetProp.value.content, true);
} else {
target = targetProp.exp;
}
if (!target) {
context.onError(
createSSRCompilerError(
66,
targetProp.loc
)
);
return;
}
const disabledProp = compilerDom.findProp(
node,
"disabled",
false,
true
/* allow empty */
);
const disabled = disabledProp ? disabledProp.type === 6 ? `true` : disabledProp.exp || `false` : `false`;
const contentRenderFn = compilerDom.createFunctionExpression(
[`_push`],
void 0,
// Body is added later
true,
// newline
false,
// isSlot
node.loc
);
contentRenderFn.body = processChildrenAsStatement(node, context);
context.pushStatement(
compilerDom.createCallExpression(context.helper(SSR_RENDER_TELEPORT), [
`_push`,
contentRenderFn,
target,
disabled,
`_parent`
])
);
}
const wipMap$3 = /* @__PURE__ */ new WeakMap();
function ssrTransformSuspense(node, context) {
return () => {
if (node.children.length) {
const wipEntry = {
slotsExp: null,
// to be immediately set
wipSlots: []
};
wipMap$3.set(node, wipEntry);
wipEntry.slotsExp = compilerDom.buildSlots(
node,
context,
(_props, _vForExp, children, loc) => {
const fn = compilerDom.createFunctionExpression(
[],
void 0,
// no return, assign body later
true,
// newline
false,
// suspense slots are not treated as normal slots
loc
);
wipEntry.wipSlots.push({
fn,
children
});
return fn;
}
).slots;
}
};
}
function ssrProcessSuspense(node, context) {
const wipEntry = wipMap$3.get(node);
if (!wipEntry) {
return;
}
const { slotsExp, wipSlots } = wipEntry;
for (let i = 0; i < wipSlots.length; i++) {
const slot = wipSlots[i];
slot.fn.body = processChildrenAsStatement(slot, context);
}
context.pushStatement(
compilerDom.createCallExpression(context.helper(SSR_RENDER_SUSPENSE), [
`_push`,
slotsExp
])
);
}
const rawChildrenMap = /* @__PURE__ */ new WeakMap();
const ssrTransformElement = (node, context) => {
if (node.type !== 1 || node.tagType !== 0) {
return;
}
return function ssrPostTransformElement() {
const openTag = [`<${node.tag}`];
const needTagForRuntime = node.tag === "textarea" || node.tag.indexOf("-") > 0;
const hasDynamicVBind = compilerDom.hasDynamicKeyVBind(node);
const hasCustomDir = node.props.some(
(p) => p.type === 7 && !shared.isBuiltInDirective(p.name)
);
const needMergeProps = hasDynamicVBind || hasCustomDir;
if (needMergeProps) {
const { props, directives } = compilerDom.buildProps(
node,
context,
node.props,
false,
false,
true
);
if (props || directives.length) {
const mergedProps = buildSSRProps(props, directives, context);
const propsExp = compilerDom.createCallExpression(
context.helper(SSR_RENDER_ATTRS),
[mergedProps]
);
if (node.tag === "textarea") {
const existingText = node.children[0];
if (!existingText || existingText.type !== 5) {
const tempId = `_temp${context.temps++}`;
propsExp.arguments = [
compilerDom.createAssignmentExpression(
compilerDom.createSimpleExpression(tempId, false),
mergedProps
)
];
rawChildrenMap.set(
node,
compilerDom.createCallExpression(context.helper(SSR_INTERPOLATE), [
compilerDom.createConditionalExpression(
compilerDom.createSimpleExpression(`"value" in ${tempId}`, false),
compilerDom.createSimpleExpression(`${tempId}.value`, false),
compilerDom.createSimpleExpression(
existingText ? existingText.content : ``,
true
),
false
)
])
);
}
} else if (node.tag === "input") {
const vModel = findVModel(node);
if (vModel) {
const tempId = `_temp${context.temps++}`;
const tempExp = compilerDom.createSimpleExpression(tempId, false);
propsExp.arguments = [
compilerDom.createSequenceExpression([
compilerDom.createAssignmentExpression(tempExp, mergedProps),
compilerDom.createCallExpression(context.helper(compilerDom.MERGE_PROPS), [
tempExp,
compilerDom.createCallExpression(
context.helper(SSR_GET_DYNAMIC_MODEL_PROPS),
[
tempExp,
// existing props
vModel.exp
// model
]
)
])
])
];
}
}
if (needTagForRuntime) {
propsExp.arguments.push(`"${node.tag}"`);
}
openTag.push(propsExp);
}
}
let dynamicClassBinding = void 0;
let staticClassBinding = void 0;
let dynamicStyleBinding = void 0;
for (let i = 0; i < node.props.length; i++) {
const prop = node.props[i];
if (node.tag === "input" && isTrueFalseValue(prop)) {
continue;
}
if (prop.type === 7) {
if (prop.name === "html" && prop.exp) {
rawChildrenMap.set(
node,
compilerDom.createCompoundExpression([`(`, prop.exp, `) ?? ''`])
);
} else if (prop.name === "text" && prop.exp) {
node.children = [compilerDom.createInterpolation(prop.exp, prop.loc)];
} else if (prop.name === "slot") {
context.onError(
compilerDom.createCompilerError(40, prop.loc)
);
} else if (isTextareaWithValue(node, prop) && prop.exp) {
if (!needMergeProps) {
node.children = [compilerDom.createInterpolation(prop.exp, prop.loc)];
}
} else if (!needMergeProps && prop.name !== "on") {
const directiveTransform = context.directiveTransforms[prop.name];
if (directiveTransform) {
const { props, ssrTagParts } = directiveTransform(
prop,
node,
context
);
if (ssrTagParts) {
openTag.push(...ssrTagParts);
}
for (let j = 0; j < props.length; j++) {
const { key, value } = props[j];
if (compilerDom.isStaticExp(key)) {
let attrName = key.content;
if (attrName === "key" || attrName === "ref") {
continue;
}
if (attrName === "class") {
openTag.push(
` class="`,
dynamicClassBinding = compilerDom.createCallExpression(
context.helper(SSR_RENDER_CLASS),
[value]
),
`"`
);
} else if (attrName === "style") {
if (dynamicStyleBinding) {
mergeCall(dynamicStyleBinding, value);
} else {
openTag.push(
` style="`,
dynamicStyleBinding = compilerDom.createCallExpression(
context.helper(SSR_RENDER_STYLE),
[value]
),
`"`
);
}
} else {
attrName = node.tag.indexOf("-") > 0 ? attrName : shared.propsToAttrMap[attrName] || attrName.toLowerCase();
if (shared.isBooleanAttr(attrName)) {
openTag.push(
compilerDom.createConditionalExpression(
compilerDom.createCallExpression(
context.helper(SSR_INCLUDE_BOOLEAN_ATTR),
[value]
),
compilerDom.createSimpleExpression(" " + attrName, true),
compilerDom.createSimpleExpression("", true),
false
)
);
} else if (shared.isSSRSafeAttrName(attrName)) {
openTag.push(
compilerDom.createCallExpression(context.helper(SSR_RENDER_ATTR), [
key,
value
])
);
} else {
context.onError(
createSSRCompilerError(
65,
key.loc
)
);
}
}
} else {
const args = [key, value];
if (needTagForRuntime) {
args.push(`"${node.tag}"`);
}
openTag.push(
compilerDom.createCallExpression(
context.helper(SSR_RENDER_DYNAMIC_ATTR),
args
)
);
}
}
}
}
} else {
const name = prop.name;
if (node.tag === "textarea" && name === "value" && prop.value) {
rawChildrenMap.set(node, shared.escapeHtml(prop.value.content));
} else if (!needMergeProps) {
if (name === "key" || name === "ref") {
continue;
}
if (name === "class" && prop.value) {
staticClassBinding = JSON.stringify(prop.value.content);
}
openTag.push(
` ${prop.name}` + (prop.value ? `="${shared.escapeHtml(prop.value.content)}"` : ``)
);
}
}
}
if (dynamicClassBinding && staticClassBinding) {
mergeCall(dynamicClassBinding, staticClassBinding);
removeStaticBinding(openTag, "class");
}
if (context.scopeId) {
openTag.push(` ${context.scopeId}`);
}
node.ssrCodegenNode = compilerDom.createTemplateLiteral(openTag);
};
};
function buildSSRProps(props, directives, context) {
let mergePropsArgs = [];
if (props) {
if (props.type === 14) {
mergePropsArgs = props.arguments;
} else {
mergePropsArgs.push(props);
}
}
if (directives.length) {
for (const dir of directives) {
mergePropsArgs.push(
compilerDom.createCallExpression(context.helper(SSR_GET_DIRECTIVE_PROPS), [
`_ctx`,
...compilerDom.buildDirectiveArgs(dir, context).elements
])
);
}
}
return mergePropsArgs.length > 1 ? compilerDom.createCallExpression(context.helper(compilerDom.MERGE_PROPS), mergePropsArgs) : mergePropsArgs[0];
}
function isTrueFalseValue(prop) {
if (prop.type === 7) {
return prop.name === "bind" && prop.arg && compilerDom.isStaticExp(prop.arg) && (prop.arg.content === "true-value" || prop.arg.content === "false-value");
} else {
return prop.name === "true-value" || prop.name === "false-value";
}
}
function isTextareaWithValue(node, prop) {
return !!(node.tag === "textarea" && prop.name === "bind" && compilerDom.isStaticArgOf(prop.arg, "value"));
}
function mergeCall(call, arg) {
const existing = call.arguments[0];
if (existing.type === 17) {
existing.elements.push(arg);
} else {
call.arguments[0] = compilerDom.createArrayExpression([existing, arg]);
}
}
function removeStaticBinding(tag, binding) {
const regExp = new RegExp(`^ ${binding}=".+"$`);
const i = tag.findIndex((e) => typeof e === "string" && regExp.test(e));
if (i > -1) {
tag.splice(i, 1);
}
}
function findVModel(node) {
return node.props.find(
(p) => p.type === 7 && p.name === "model" && p.exp
);
}
function ssrProcessElement(node, context) {
const isVoidTag = context.options.isVoidTag || shared.NO;
const elementsToAdd = node.ssrCodegenNode.elements;
for (let j = 0; j < elementsToAdd.length; j++) {
context.pushStringPart(elementsToAdd[j]);
}
if (context.withSlotScopeId) {
context.pushStringPart(compilerDom.createSimpleExpression(`_scopeId`, false));
}
context.pushStringPart(`>`);
const rawChildren = rawChildrenMap.get(node);
if (rawChildren) {
context.pushStringPart(rawChildren);
} else if (node.children.length) {
processChildren(node, context);
}
if (!isVoidTag(node.tag)) {
context.pushStringPart(``);
}
}
const wipMap$2 = /* @__PURE__ */ new WeakMap();
function ssrTransformTransitionGroup(node, context) {
return () => {
const tag = compilerDom.findProp(node, "tag");
if (tag) {
const otherProps = node.props.filter((p) => p !== tag);
const { props, directives } = compilerDom.buildProps(
node,
context,
otherProps,
true,
false,
true
);
let propsExp = null;
if (props || directives.length) {
propsExp = compilerDom.createCallExpression(context.helper(SSR_RENDER_ATTRS), [
buildSSRProps(props, directives, context)
]);
}
wipMap$2.set(node, {
tag,
propsExp,
scopeId: context.scopeId || null
});
}
};
}
function ssrProcessTransitionGroup(node, context) {
const entry = wipMap$2.get(node);
if (entry) {
const { tag, propsExp, scopeId } = entry;
if (tag.type === 7) {
context.pushStringPart(`<`);
context.pushStringPart(tag.exp);
if (propsExp) {
context.pushStringPart(propsExp);
}
if (scopeId) {
context.pushStringPart(` ${scopeId}`);
}
context.pushStringPart(`>`);
processChildren(
node,
context,
false,
/**
* TransitionGroup has the special runtime behavior of flattening and
* concatenating all children into a single fragment (in order for them to
* be patched using the same key map) so we need to account for that here
* by disabling nested fragment wrappers from being generated.
*/
true,
/**
* TransitionGroup filters out comment children at runtime and thus
* doesn't expect comments to be present during hydration. We need to
* account for that by disabling the empty comment that is otherwise
* rendered for a falsy v-if that has no v-else specified. (#6715)
*/
true
);
context.pushStringPart(``);
} else {
context.pushStringPart(`<${tag.value.content}`);
if (propsExp) {
context.pushStringPart(propsExp);
}
if (scopeId) {
context.pushStringPart(` ${scopeId}`);
}
context.pushStringPart(`>`);
processChildren(node, context, false, true);
context.pushStringPart(``);
}
} else {
processChildren(node, context, true, true, true);
}
}
const wipMap$1 = /* @__PURE__ */ new WeakMap();
function ssrTransformTransition(node, context) {
return () => {
const appear = compilerDom.findProp(node, "appear", false, true);
wipMap$1.set(node, !!appear);
};
}
function ssrProcessTransition(node, context) {
node.children = node.children.filter((c) => c.type !== 3);
const appear = wipMap$1.get(node);
if (appear) {
context.pushStringPart(``);
processChildren(node, context, false, true);
context.pushStringPart(` `);
} else {
processChildren(node, context, false, true);
}
}
const wipMap = /* @__PURE__ */ new WeakMap();
const WIP_SLOT = Symbol();
const componentTypeMap = /* @__PURE__ */ new WeakMap();
const ssrTransformComponent = (node, context) => {
if (node.type !== 1 || node.tagType !== 1) {
return;
}
const component = compilerDom.resolveComponentType(
node,
context,
true
/* ssr */
);
const isDynamicComponent = shared.isObject(component) && component.callee === compilerDom.RESOLVE_DYNAMIC_COMPONENT;
componentTypeMap.set(node, component);
if (shared.isSymbol(component)) {
if (component === compilerDom.SUSPENSE) {
return ssrTransformSuspense(node, context);
} else if (component === compilerDom.TRANSITION_GROUP) {
return ssrTransformTransitionGroup(node, context);
} else if (component === compilerDom.TRANSITION) {
return ssrTransformTransition(node);
}
return;
}
const vnodeBranches = [];
const clonedNode = clone(node);
return function ssrPostTransformComponent() {
if (clonedNode.children.length) {
compilerDom.buildSlots(clonedNode, context, (props, vFor, children) => {
vnodeBranches.push(
createVNodeSlotBranch(props, vFor, children, context)
);
return compilerDom.createFunctionExpression(void 0);
});
}
let propsExp = `null`;
if (node.props.length) {
const { props, directives } = compilerDom.buildProps(
node,
context,
void 0,
true,
isDynamicComponent
);
if (props || directives.length) {
propsExp = buildSSRProps(props, directives, context);
}
}
const wipEntries = [];
wipMap.set(node, wipEntries);
const buildSSRSlotFn = (props, _vForExp, children, loc) => {
const param0 = props && compilerDom.stringifyExpression(props) || `_`;
const fn = compilerDom.createFunctionExpression(
[param0, `_push`, `_parent`, `_scopeId`],
void 0,
// no return, assign body later
true,
// newline
true,
// isSlot
loc
);
wipEntries.push({
type: WIP_SLOT,
fn,
children,
// also collect the corresponding vnode branch built earlier
vnodeBranch: vnodeBranches[wipEntries.length]
});
return fn;
};
const slots = node.children.length ? compilerDom.buildSlots(node, context, buildSSRSlotFn).slots : `null`;
if (typeof component !== "string") {
node.ssrCodegenNode = compilerDom.createCallExpression(
context.helper(SSR_RENDER_VNODE),
[
`_push`,
compilerDom.createCallExpression(context.helper(compilerDom.CREATE_VNODE), [
component,
propsExp,
slots
]),
`_parent`
]
);
} else {
node.ssrCodegenNode = compilerDom.createCallExpression(
context.helper(SSR_RENDER_COMPONENT),
[component, propsExp, slots, `_parent`]
);
}
};
};
function ssrProcessComponent(node, context, parent) {
const component = componentTypeMap.get(node);
if (!node.ssrCodegenNode) {
if (component === compilerDom.TELEPORT) {
return ssrProcessTeleport(node, context);
} else if (component === compilerDom.SUSPENSE) {
return ssrProcessSuspense(node, context);
} else if (component === compilerDom.TRANSITION_GROUP) {
return ssrProcessTransitionGroup(node, context);
} else {
if (parent.type === WIP_SLOT) {
context.pushStringPart(``);
}
if (component === compilerDom.TRANSITION) {
return ssrProcessTransition(node, context);
}
processChildren(node, context);
}
} else {
const wipEntries = wipMap.get(node) || [];
for (let i = 0; i < wipEntries.length; i++) {
const { fn, vnodeBranch } = wipEntries[i];
fn.body = compilerDom.createIfStatement(
compilerDom.createSimpleExpression(`_push`, false),
processChildrenAsStatement(
wipEntries[i],
context,
false,
true
),
vnodeBranch
);
}
if (context.withSlotScopeId) {
node.ssrCodegenNode.arguments.push(`_scopeId`);
}
if (typeof component === "string") {
context.pushStatement(
compilerDom.createCallExpression(`_push`, [node.ssrCodegenNode])
);
} else {
context.pushStatement(node.ssrCodegenNode);
}
}
}
const rawOptionsMap = /* @__PURE__ */ new WeakMap();
const [baseNodeTransforms, baseDirectiveTransforms] = compilerDom.getBaseTransformPreset(true);
const vnodeNodeTransforms = [...baseNodeTransforms, ...compilerDom.DOMNodeTransforms];
const vnodeDirectiveTransforms = {
...baseDirectiveTransforms,
...compilerDom.DOMDirectiveTransforms
};
function createVNodeSlotBranch(slotProps, vFor, children, parentContext) {
const rawOptions = rawOptionsMap.get(parentContext.root);
const subOptions = {
...rawOptions,
// overwrite with vnode-based transforms
nodeTransforms: [
...vnodeNodeTransforms,
...rawOptions.nodeTransforms || []
],
directiveTransforms: {
...vnodeDirectiveTransforms,
...rawOptions.directiveTransforms || {}
}
};
const wrapperProps = [];
if (slotProps) {
wrapperProps.push({
type: 7,
name: "slot",
exp: slotProps,
arg: void 0,
modifiers: [],
loc: compilerDom.locStub
});
}
if (vFor) {
wrapperProps.push(shared.extend({}, vFor));
}
const wrapperNode = {
type: 1,
ns: 0,
tag: "template",
tagType: 3,
props: wrapperProps,
children,
loc: compilerDom.locStub,
codegenNode: void 0
};
subTransform(wrapperNode, subOptions, parentContext);
return compilerDom.createReturnStatement(children);
}
function subTransform(node, options, parentContext) {
const childRoot = compilerDom.createRoot([node]);
const childContext = compilerDom.createTransformContext(childRoot, options);
childContext.ssr = false;
childContext.scopes = { ...parentContext.scopes };
childContext.identifiers = { ...parentContext.identifiers };
childContext.imports = parentContext.imports;
compilerDom.traverseNode(childRoot, childContext);
["helpers", "components", "directives"].forEach((key) => {
childContext[key].forEach((value, helperKey) => {
if (key === "helpers") {
const parentCount = parentContext.helpers.get(helperKey);
if (parentCount === void 0) {
parentContext.helpers.set(helperKey, value);
} else {
parentContext.helpers.set(helperKey, value + parentCount);
}
} else {
parentContext[key].add(value);
}
});
});
}
function clone(v) {
if (shared.isArray(v)) {
return v.map(clone);
} else if (shared.isPlainObject(v)) {
const res = {};
for (const key in v) {
res[key] = clone(v[key]);
}
return res;
} else {
return v;
}
}
function ssrCodegenTransform(ast, options) {
const context = createSSRTransformContext(ast, options);
if (options.ssrCssVars) {
const cssContext = compilerDom.createTransformContext(compilerDom.createRoot([]), options);
const varsExp = compilerDom.processExpression(
compilerDom.createSimpleExpression(options.ssrCssVars, false),
cssContext
);
context.body.push(
compilerDom.createCompoundExpression([`const _cssVars = { style: `, varsExp, `}`])
);
Array.from(cssContext.helpers.keys()).forEach((helper) => {
ast.helpers.add(helper);
});
}
const isFragment = ast.children.length > 1 && ast.children.some((c) => !compilerDom.isText(c));
processChildren(ast, context, isFragment);
ast.codegenNode = compilerDom.createBlockStatement(context.body);
ast.ssrHelpers = Array.from(
/* @__PURE__ */ new Set([
...Array.from(ast.helpers).filter((h) => h in ssrHelpers),
...context.helpers
])
);
ast.helpers = new Set(Array.from(ast.helpers).filter((h) => !(h in ssrHelpers)));
}
function createSSRTransformContext(root, options, helpers = /* @__PURE__ */ new Set(), withSlotScopeId = false) {
const body = [];
let currentString = null;
return {
root,
options,
body,
helpers,
withSlotScopeId,
onError: options.onError || ((e) => {
throw e;
}),
helper(name) {
helpers.add(name);
return name;
},
pushStringPart(part) {
if (!currentString) {
const currentCall = compilerDom.createCallExpression(`_push`);
body.push(currentCall);
currentString = compilerDom.createTemplateLiteral([]);
currentCall.arguments.push(currentString);
}
const bufferedElements = currentString.elements;
const lastItem = bufferedElements[bufferedElements.length - 1];
if (shared.isString(part) && shared.isString(lastItem)) {
bufferedElements[bufferedElements.length - 1] += part;
} else {
bufferedElements.push(part);
}
},
pushStatement(statement) {
currentString = null;
body.push(statement);
}
};
}
function createChildContext(parent, withSlotScopeId = parent.withSlotScopeId) {
return createSSRTransformContext(
parent.root,
parent.options,
parent.helpers,
withSlotScopeId
);
}
function processChildren(parent, context, asFragment = false, disableNestedFragments = false, disableCommentAsIfAlternate = false) {
if (asFragment) {
context.pushStringPart(``);
}
const { children } = parent;
for (let i = 0; i < children.length; i++) {
const child = children[i];
switch (child.type) {
case 1:
switch (child.tagType) {
case 0:
ssrProcessElement(child, context);
break;
case 1:
ssrProcessComponent(child, context, parent);
break;
case 2:
ssrProcessSlotOutlet(child, context);
break;
case 3:
break;
default:
context.onError(
createSSRCompilerError(
67,
child.loc
)
);
const exhaustiveCheck2 = child;
return exhaustiveCheck2;
}
break;
case 2:
context.pushStringPart(shared.escapeHtml(child.content));
break;
case 3:
context.pushStringPart(``);
break;
case 5:
context.pushStringPart(
compilerDom.createCallExpression(context.helper(SSR_INTERPOLATE), [
child.content
])
);
break;
case 9:
ssrProcessIf(
child,
context,
disableNestedFragments,
disableCommentAsIfAlternate
);
break;
case 11:
ssrProcessFor(child, context, disableNestedFragments);
break;
case 10:
break;
case 12:
case 8:
break;
default:
context.onError(
createSSRCompilerError(
67,
child.loc
)
);
const exhaustiveCheck = child;
return exhaustiveCheck;
}
}
if (asFragment) {
context.pushStringPart(``);
}
}
function processChildrenAsStatement(parent, parentContext, asFragment = false, withSlotScopeId = parentContext.withSlotScopeId) {
const childContext = createChildContext(parentContext, withSlotScopeId);
processChildren(parent, childContext, asFragment);
return compilerDom.createBlockStatement(childContext.body);
}
const ssrTransformModel = (dir, node, context) => {
const model = dir.exp;
function checkDuplicatedValue() {
const value = compilerDom.findProp(node, "value");
if (value) {
context.onError(
compilerDom.createDOMCompilerError(
60,
value.loc
)
);
}
}
function processOption(plainNode) {
if (plainNode.tag === "option") {
if (plainNode.props.findIndex((p) => p.name === "selected") === -1) {
const value = findValueBinding(plainNode);
plainNode.ssrCodegenNode.elements.push(
compilerDom.createConditionalExpression(
compilerDom.createCallExpression(context.helper(SSR_INCLUDE_BOOLEAN_ATTR), [
compilerDom.createConditionalExpression(
compilerDom.createCallExpression(`Array.isArray`, [model]),
compilerDom.createCallExpression(context.helper(SSR_LOOSE_CONTAIN), [
model,
value
]),
compilerDom.createCallExpression(context.helper(SSR_LOOSE_EQUAL), [
model,
value
])
)
]),
compilerDom.createSimpleExpression(" selected", true),
compilerDom.createSimpleExpression("", true),
false
)
);
}
} else if (plainNode.tag === "optgroup") {
plainNode.children.forEach(
(option) => processOption(option)
);
}
}
if (node.tagType === 0) {
const res = { props: [] };
const defaultProps = [
// default value binding for text type inputs
compilerDom.createObjectProperty(`value`, model)
];
if (node.tag === "input") {
const type = compilerDom.findProp(node, "type");
if (type) {
const value = findValueBinding(node);
if (type.type === 7) {
res.ssrTagParts = [
compilerDom.createCallExpression(context.helper(SSR_RENDER_DYNAMIC_MODEL), [
type.exp,
model,
value
])
];
} else if (type.value) {
switch (type.value.content) {
case "radio":
res.props = [
compilerDom.createObjectProperty(
`checked`,
compilerDom.createCallExpression(context.helper(SSR_LOOSE_EQUAL), [
model,
value
])
)
];
break;
case "checkbox":
const trueValueBinding = compilerDom.findProp(node, "true-value");
if (trueValueBinding) {
const trueValue = trueValueBinding.type === 6 ? JSON.stringify(trueValueBinding.value.content) : trueValueBinding.exp;
res.props = [
compilerDom.createObjectProperty(
`checked`,
compilerDom.createCallExpression(context.helper(SSR_LOOSE_EQUAL), [
model,
trueValue
])
)
];
} else {
res.props = [
compilerDom.createObjectProperty(
`checked`,
compilerDom.createConditionalExpression(
compilerDom.createCallExpression(`Array.isArray`, [model]),
compilerDom.createCallExpression(context.helper(SSR_LOOSE_CONTAIN), [
model,
value
]),
model
)
)
];
}
break;
case "file":
context.onError(
compilerDom.createDOMCompilerError(
59,
dir.loc
)
);
break;
default:
checkDuplicatedValue();
res.props = defaultProps;
break;
}
}
} else if (compilerDom.hasDynamicKeyVBind(node)) ; else {
checkDuplicatedValue();
res.props = defaultProps;
}
} else if (node.tag === "textarea") {
checkDuplicatedValue();
node.children = [compilerDom.createInterpolation(model, model.loc)];
} else if (node.tag === "select") {
node.children.forEach((child) => {
if (child.type === 1) {
processOption(child);
}
});
} else {
context.onError(
compilerDom.createDOMCompilerError(
57,
dir.loc
)
);
}
return res;
} else {
return compilerDom.transformModel(dir, node, context);
}
};
function findValueBinding(node) {
const valueBinding = compilerDom.findProp(node, "value");
return valueBinding ? valueBinding.type === 7 ? valueBinding.exp : compilerDom.createSimpleExpression(valueBinding.value.content, true) : compilerDom.createSimpleExpression(`null`, false);
}
const ssrTransformShow = (dir, node, context) => {
if (!dir.exp) {
context.onError(
compilerDom.createDOMCompilerError(61)
);
}
return {
props: [
compilerDom.createObjectProperty(
`style`,
compilerDom.createConditionalExpression(
dir.exp,
compilerDom.createSimpleExpression(`null`, false),
compilerDom.createObjectExpression([
compilerDom.createObjectProperty(
`display`,
compilerDom.createSimpleExpression(`none`, true)
)
]),
false
)
)
]
};
};
const filterChild = (node) => node.children.filter((n) => n.type !== 3);
const hasSingleChild = (node) => filterChild(node).length === 1;
const ssrInjectFallthroughAttrs = (node, context) => {
if (node.type === 0) {
context.identifiers._attrs = 1;
}
if (node.type === 1 && node.tagType === 1 && (node.tag === "transition" || node.tag === "Transition" || node.tag === "KeepAlive" || node.tag === "keep-alive")) {
const rootChildren = filterChild(context.root);
if (rootChildren.length === 1 && rootChildren[0] === node) {
if (hasSingleChild(node)) {
injectFallthroughAttrs(node.children[0]);
}
return;
}
}
const parent = context.parent;
if (!parent || parent.type !== 0) {
return;
}
if (node.type === 10 && hasSingleChild(node)) {
let hasEncounteredIf = false;
for (const c of filterChild(parent)) {
if (c.type === 9 || c.type === 1 && compilerDom.findDir(c, "if")) {
if (hasEncounteredIf) return;
hasEncounteredIf = true;
} else if (
// node before v-if
!hasEncounteredIf || // non else nodes
!(c.type === 1 && compilerDom.findDir(c, /else/, true))
) {
return;
}
}
injectFallthroughAttrs(node.children[0]);
} else if (hasSingleChild(parent)) {
injectFallthroughAttrs(node);
}
};
function injectFallthroughAttrs(node) {
if (node.type === 1 && (node.tagType === 0 || node.tagType === 1) && !compilerDom.findDir(node, "for")) {
node.props.push({
type: 7,
name: "bind",
arg: void 0,
exp: compilerDom.createSimpleExpression(`_attrs`, false),
modifiers: [],
loc: compilerDom.locStub
});
}
}
const ssrInjectCssVars = (node, context) => {
if (!context.ssrCssVars) {
return;
}
if (node.type === 0) {
context.identifiers._cssVars = 1;
}
const parent = context.parent;
if (!parent || parent.type !== 0) {
return;
}
if (node.type === 10) {
for (const child of node.children) {
injectCssVars(child);
}
} else {
injectCssVars(node);
}
};
function injectCssVars(node) {
if (node.type === 1 && (node.tagType === 0 || node.tagType === 1) && !compilerDom.findDir(node, "for")) {
if (node.tag === "suspense" || node.tag === "Suspense") {
for (const child of node.children) {
if (child.type === 1 && child.tagType === 3) {
child.children.forEach(injectCssVars);
} else {
injectCssVars(child);
}
}
} else {
node.props.push({
type: 7,
name: "bind",
arg: void 0,
exp: compilerDom.createSimpleExpression(`_cssVars`, false),
modifiers: [],
loc: compilerDom.locStub
});
}
}
}
function compile(source, options = {}) {
options = {
...options,
...compilerDom.parserOptions,
ssr: true,
inSSR: true,
scopeId: options.mode === "function" ? null : options.scopeId,
// always prefix since compiler-ssr doesn't have size concern
prefixIdentifiers: true,
// disable optimizations that are unnecessary for ssr
cacheHandlers: false,
hoistStatic: false
};
const ast = typeof source === "string" ? compilerDom.baseParse(source, options) : source;
rawOptionsMap.set(ast, options);
compilerDom.transform(ast, {
...options,
hoistStatic: false,
nodeTransforms: [
ssrTransformIf,
ssrTransformFor,
compilerDom.trackVForSlotScopes,
compilerDom.transformExpression,
ssrTransformSlotOutlet,
ssrInjectFallthroughAttrs,
ssrInjectCssVars,
ssrTransformElement,
ssrTransformComponent,
compilerDom.trackSlotScopes,
compilerDom.transformStyle,
...options.nodeTransforms || []
// user transforms
],
directiveTransforms: {
// reusing core v-bind
bind: compilerDom.transformBind,
on: compilerDom.transformOn,
// model and show have dedicated SSR handling
model: ssrTransformModel,
show: ssrTransformShow,
// the following are ignored during SSR
// on: noopDirectiveTransform,
cloak: compilerDom.noopDirectiveTransform,
once: compilerDom.noopDirectiveTransform,
memo: compilerDom.noopDirectiveTransform,
...options.directiveTransforms || {}
// user transforms
}
});
ssrCodegenTransform(ast, options);
return compilerDom.generate(ast, options);
}
exports.compile = compile;
