// src/core/impl.ts
import MagicString from "magic-string";

// ../../node_modules/.pnpm/estree-walker@3.0.3/node_modules/estree-walker/src/walker.js
var WalkerBase = class {
  constructor() {
    this.should_skip = false;
    this.should_remove = false;
    this.replacement = null;
    this.context = {
      skip: () => this.should_skip = true,
      remove: () => this.should_remove = true,
      replace: (node) => this.replacement = node
    };
  }
  /**
   * @template {Node} Parent
   * @param {Parent | null | undefined} parent
   * @param {keyof Parent | null | undefined} prop
   * @param {number | null | undefined} index
   * @param {Node} node
   */
  replace(parent, prop, index, node) {
    if (parent && prop) {
      if (index != null) {
        parent[prop][index] = node;
      } else {
        parent[prop] = node;
      }
    }
  }
  /**
   * @template {Node} Parent
   * @param {Parent | null | undefined} parent
   * @param {keyof Parent | null | undefined} prop
   * @param {number | null | undefined} index
   */
  remove(parent, prop, index) {
    if (parent && prop) {
      if (index !== null && index !== void 0) {
        parent[prop].splice(index, 1);
      } else {
        delete parent[prop];
      }
    }
  }
};

// ../../node_modules/.pnpm/estree-walker@3.0.3/node_modules/estree-walker/src/sync.js
var SyncWalker = class extends WalkerBase {
  /**
   *
   * @param {SyncHandler} [enter]
   * @param {SyncHandler} [leave]
   */
  constructor(enter, leave) {
    super();
    this.should_skip = false;
    this.should_remove = false;
    this.replacement = null;
    this.context = {
      skip: () => this.should_skip = true,
      remove: () => this.should_remove = true,
      replace: (node) => this.replacement = node
    };
    this.enter = enter;
    this.leave = leave;
  }
  /**
   * @template {Node} Parent
   * @param {Node} node
   * @param {Parent | null} parent
   * @param {keyof Parent} [prop]
   * @param {number | null} [index]
   * @returns {Node | null}
   */
  visit(node, parent, prop, index) {
    if (node) {
      if (this.enter) {
        const _should_skip = this.should_skip;
        const _should_remove = this.should_remove;
        const _replacement = this.replacement;
        this.should_skip = false;
        this.should_remove = false;
        this.replacement = null;
        this.enter.call(this.context, node, parent, prop, index);
        if (this.replacement) {
          node = this.replacement;
          this.replace(parent, prop, index, node);
        }
        if (this.should_remove) {
          this.remove(parent, prop, index);
        }
        const skipped = this.should_skip;
        const removed = this.should_remove;
        this.should_skip = _should_skip;
        this.should_remove = _should_remove;
        this.replacement = _replacement;
        if (skipped)
          return node;
        if (removed)
          return null;
      }
      let key;
      for (key in node) {
        const value = node[key];
        if (value && typeof value === "object") {
          if (Array.isArray(value)) {
            const nodes = (
              /** @type {Array<unknown>} */
              value
            );
            for (let i = 0; i < nodes.length; i += 1) {
              const item = nodes[i];
              if (isNode(item)) {
                if (!this.visit(item, node, key, i)) {
                  i--;
                }
              }
            }
          } else if (isNode(value)) {
            this.visit(value, node, key, null);
          }
        }
      }
      if (this.leave) {
        const _replacement = this.replacement;
        const _should_remove = this.should_remove;
        this.replacement = null;
        this.should_remove = false;
        this.leave.call(this.context, node, parent, prop, index);
        if (this.replacement) {
          node = this.replacement;
          this.replace(parent, prop, index, node);
        }
        if (this.should_remove) {
          this.remove(parent, prop, index);
        }
        const removed = this.should_remove;
        this.replacement = _replacement;
        this.should_remove = _should_remove;
        if (removed)
          return null;
      }
    }
    return node;
  }
};
function isNode(value) {
  return value !== null && typeof value === "object" && "type" in value && typeof value.type === "string";
}

// ../../node_modules/.pnpm/estree-walker@3.0.3/node_modules/estree-walker/src/index.js
function walk(ast, { enter, leave }) {
  const instance = new SyncWalker(enter, leave);
  return instance.visit(ast, null);
}

// src/core/impl.ts
import {
  extractIdentifiers,
  isFunctionType,
  isInDestructureAssignment,
  isReferencedIdentifier,
  isStaticProperty,
  walkFunctionParams
} from "@vue/compiler-core";
import { parse } from "@babel/parser";
import { genPropsAccessExp, hasOwn, isArray, isString } from "@vue/shared";
import { TS_NODE_TYPES, unwrapTSNode } from "@vue-macros/common";
var CONVERT_SYMBOL = "$";
var ESCAPE_SYMBOL = "$$";
var IMPORT_SOURCE = "vue/macros";
var shorthands = ["ref", "computed", "shallowRef", "toRef", "customRef"];
var transformCheckRE = /\W\$(?:\$|ref|computed|shallowRef|toRef|customRef)?\s*([(<])/;
function shouldTransform(src) {
  return transformCheckRE.test(src);
}
function transform(src, {
  filename,
  sourceMap,
  parserPlugins,
  importHelpersFrom = "vue"
} = {}) {
  const plugins = parserPlugins || [];
  if (filename) {
    if (/\.tsx?$/.test(filename)) {
      plugins.push("typescript");
    }
    if (filename.endsWith("x")) {
      plugins.push("jsx");
    }
  }
  const ast = parse(src, {
    sourceType: "module",
    plugins
  });
  const s = new MagicString(src);
  const res = transformAST(ast.program, s, 0);
  if (res.importedHelpers.length > 0) {
    s.prepend(
      `import { ${res.importedHelpers.map((h) => `${h} as _${h}`).join(", ")} } from '${importHelpersFrom}'
`
    );
  }
  return {
    ...res,
    code: s.toString(),
    map: sourceMap ? s.generateMap({
      source: filename,
      hires: true,
      includeContent: true
    }) : null
  };
}
function transformAST(ast, s, offset = 0, knownRefs, knownProps) {
  const userImports = /* @__PURE__ */ Object.create(null);
  for (const node of ast.body) {
    if (node.type !== "ImportDeclaration")
      continue;
    walkImportDeclaration(node);
  }
  let convertSymbol;
  let escapeSymbol;
  for (const { local, imported, source, specifier } of Object.values(
    userImports
  )) {
    if (source === IMPORT_SOURCE) {
      if (imported === ESCAPE_SYMBOL) {
        escapeSymbol = local;
      } else if (imported === CONVERT_SYMBOL) {
        convertSymbol = local;
      } else if (imported !== local) {
        error(
          `macro imports for ref-creating methods do not support aliasing.`,
          specifier
        );
      }
    }
  }
  if (!convertSymbol && !userImports[CONVERT_SYMBOL]) {
    convertSymbol = CONVERT_SYMBOL;
  }
  if (!escapeSymbol && !userImports[ESCAPE_SYMBOL]) {
    escapeSymbol = ESCAPE_SYMBOL;
  }
  const importedHelpers = /* @__PURE__ */ new Set();
  const rootScope = {};
  const scopeStack = [rootScope];
  let currentScope = rootScope;
  let escapeScope;
  const excludedIds = /* @__PURE__ */ new WeakSet();
  const parentStack = [];
  const propsLocalToPublicMap = /* @__PURE__ */ Object.create(null);
  if (knownRefs) {
    for (const key of knownRefs) {
      rootScope[key] = {};
    }
  }
  if (knownProps) {
    for (const key in knownProps) {
      const { local, isConst } = knownProps[key];
      rootScope[local] = {
        isProp: true,
        isConst: !!isConst
      };
      propsLocalToPublicMap[local] = key;
    }
  }
  function walkImportDeclaration(node) {
    const source = node.source.value;
    if (source === IMPORT_SOURCE) {
      s.remove(node.start + offset, node.end + offset);
    }
    for (const specifier of node.specifiers) {
      const local = specifier.local.name;
      const imported = specifier.type === "ImportSpecifier" && specifier.imported.type === "Identifier" && specifier.imported.name || "default";
      userImports[local] = {
        source,
        local,
        imported,
        specifier
      };
    }
  }
  function isRefCreationCall(callee) {
    if (!convertSymbol || getCurrentScope()[convertSymbol] !== void 0) {
      return false;
    }
    if (callee === convertSymbol) {
      return convertSymbol;
    }
    if (callee[0] === "$" && shorthands.includes(callee.slice(1))) {
      return callee;
    }
    return false;
  }
  function error(msg, node) {
    const e = new Error(msg);
    e.node = node;
    throw e;
  }
  function helper(msg) {
    importedHelpers.add(msg);
    return `_${msg}`;
  }
  function getCurrentScope() {
    return scopeStack.reduce((prev, curr) => ({ ...prev, ...curr }), {});
  }
  function registerBinding(id, binding) {
    excludedIds.add(id);
    if (currentScope) {
      currentScope[id.name] = binding ? binding : false;
    } else {
      error(
        "registerBinding called without active scope, something is wrong.",
        id
      );
    }
  }
  const registerRefBinding = (id, isConst = false) => registerBinding(id, { isConst });
  let tempVarCount = 0;
  function genTempVar() {
    return `__$temp_${++tempVarCount}`;
  }
  function snip(node) {
    return s.original.slice(node.start + offset, node.end + offset);
  }
  function findUpParent() {
    return parentStack.slice().reverse().find(({ type }) => !TS_NODE_TYPES.includes(type));
  }
  function walkScope(node, isRoot = false) {
    for (const stmt of node.body) {
      if (stmt.type === "VariableDeclaration") {
        walkVariableDeclaration(stmt, isRoot);
      } else if (stmt.type === "FunctionDeclaration" || stmt.type === "ClassDeclaration") {
        if (stmt.declare || !stmt.id)
          continue;
        registerBinding(stmt.id);
      } else if ((stmt.type === "ForOfStatement" || stmt.type === "ForInStatement") && stmt.left.type === "VariableDeclaration") {
        walkVariableDeclaration(stmt.left);
      } else if (stmt.type === "ExportNamedDeclaration" && stmt.declaration && stmt.declaration.type === "VariableDeclaration") {
        walkVariableDeclaration(stmt.declaration, isRoot);
      } else if (stmt.type === "LabeledStatement" && stmt.body.type === "VariableDeclaration") {
        walkVariableDeclaration(stmt.body, isRoot);
      }
    }
  }
  function walkVariableDeclaration(stmt, isRoot = false) {
    if (stmt.declare) {
      return;
    }
    for (const decl of stmt.declarations) {
      let refCall;
      const init = decl.init ? unwrapTSNode(decl.init) : null;
      const isCall = init && init.type === "CallExpression" && init.callee.type === "Identifier";
      if (isCall && (refCall = isRefCreationCall(init.callee.name))) {
        processRefDeclaration(
          refCall,
          decl.id,
          decl.init,
          init,
          stmt.kind === "const"
        );
      } else {
        const isProps = isRoot && isCall && init.callee.name === "defineProps";
        for (const id of extractIdentifiers(decl.id)) {
          if (isProps) {
            excludedIds.add(id);
          } else {
            registerBinding(id);
          }
        }
      }
    }
  }
  function processRefDeclaration(method, id, init, call, isConst) {
    excludedIds.add(call.callee);
    if (method === convertSymbol) {
      s.remove(call.callee.start + offset, call.callee.end + offset);
      if (id.type === "Identifier") {
        registerRefBinding(id, isConst);
      } else if (id.type === "ObjectPattern") {
        processRefObjectPattern(id, init, isConst);
      } else if (id.type === "ArrayPattern") {
        processRefArrayPattern(id, init, isConst);
      }
    } else if (id.type === "Identifier") {
      registerRefBinding(id, isConst);
      s.overwrite(
        call.start + offset,
        call.start + method.length + offset,
        helper(method.slice(1))
      );
    } else {
      error(`${method}() cannot be used with destructure patterns.`, call);
    }
  }
  function processRefObjectPattern(pattern, value, isConst, tempVar, path = []) {
    if (!tempVar) {
      tempVar = genTempVar();
      s.overwrite(pattern.start + offset, pattern.end + offset, tempVar);
    }
    let nameId;
    for (const p of pattern.properties) {
      let key;
      let defaultValue;
      if (p.type === "ObjectProperty") {
        if (p.key.start === p.value.start) {
          nameId = p.key;
          if (p.value.type === "Identifier") {
            excludedIds.add(p.value);
          } else if (p.value.type === "AssignmentPattern" && p.value.left.type === "Identifier") {
            excludedIds.add(p.value.left);
            defaultValue = p.value.right;
          }
        } else {
          key = p.computed ? p.key : p.key.name;
          if (p.value.type === "Identifier") {
            nameId = p.value;
          } else if (p.value.type === "ObjectPattern") {
            processRefObjectPattern(p.value, value, isConst, tempVar, [
              ...path,
              key
            ]);
          } else if (p.value.type === "ArrayPattern") {
            processRefArrayPattern(p.value, value, isConst, tempVar, [
              ...path,
              key
            ]);
          } else if (p.value.type === "AssignmentPattern") {
            if (p.value.left.type === "Identifier") {
              nameId = p.value.left;
              defaultValue = p.value.right;
            } else if (p.value.left.type === "ObjectPattern") {
              processRefObjectPattern(p.value.left, value, isConst, tempVar, [
                ...path,
                [key, p.value.right]
              ]);
            } else if (p.value.left.type === "ArrayPattern") {
              processRefArrayPattern(p.value.left, value, isConst, tempVar, [
                ...path,
                [key, p.value.right]
              ]);
            } else {
            }
          }
        }
      } else {
        error(`reactivity destructure does not support rest elements.`, p);
      }
      if (nameId) {
        registerRefBinding(nameId, isConst);
        const source = pathToString(tempVar, path);
        const keyStr = isString(key) ? `'${key}'` : key ? snip(key) : `'${nameId.name}'`;
        const defaultStr = defaultValue ? `, ${snip(defaultValue)}` : ``;
        s.appendLeft(
          value.end + offset,
          `,
  ${nameId.name} = ${helper(
            "toRef"
          )}(${source}, ${keyStr}${defaultStr})`
        );
      }
    }
    if (nameId) {
      s.appendLeft(value.end + offset, ";");
    }
  }
  function processRefArrayPattern(pattern, value, isConst, tempVar, path = []) {
    if (!tempVar) {
      tempVar = genTempVar();
      s.overwrite(pattern.start + offset, pattern.end + offset, tempVar);
    }
    let nameId;
    for (let i = 0; i < pattern.elements.length; i++) {
      const e = pattern.elements[i];
      if (!e)
        continue;
      let defaultValue;
      if (e.type === "Identifier") {
        nameId = e;
      } else if (e.type === "AssignmentPattern") {
        nameId = e.left;
        defaultValue = e.right;
      } else if (e.type === "RestElement") {
        error(`reactivity destructure does not support rest elements.`, e);
      } else if (e.type === "ObjectPattern") {
        processRefObjectPattern(e, value, isConst, tempVar, [...path, i]);
      } else if (e.type === "ArrayPattern") {
        processRefArrayPattern(e, value, isConst, tempVar, [...path, i]);
      }
      if (nameId) {
        registerRefBinding(nameId, isConst);
        const source = pathToString(tempVar, path);
        const defaultStr = defaultValue ? `, ${snip(defaultValue)}` : ``;
        s.appendLeft(
          value.end + offset,
          `,
  ${nameId.name} = ${helper(
            "toRef"
          )}(${source}, ${i}${defaultStr})`
        );
      }
    }
    if (nameId) {
      s.appendLeft(value.end + offset, ";");
    }
  }
  function pathToString(source, path) {
    if (path.length > 0) {
      for (const seg of path) {
        if (isArray(seg)) {
          source = `(${source}${segToString(seg[0])} || ${snip(seg[1])})`;
        } else {
          source += segToString(seg);
        }
      }
    }
    return source;
  }
  function segToString(seg) {
    if (typeof seg === "number") {
      return `[${seg}]`;
    } else if (typeof seg === "string") {
      return `.${seg}`;
    } else {
      return snip(seg);
    }
  }
  function rewriteId(scope, id, parent, parentStack2) {
    if (hasOwn(scope, id.name)) {
      const binding = scope[id.name];
      if (binding) {
        if (binding.isConst && (parent.type === "AssignmentExpression" && id === parent.left || parent.type === "UpdateExpression")) {
          error(`Assignment to constant variable.`, id);
        }
        const { isProp } = binding;
        if (isStaticProperty(parent) && parent.shorthand) {
          if (!parent.inPattern || isInDestructureAssignment(parent, parentStack2)) {
            if (isProp) {
              if (escapeScope) {
                registerEscapedPropBinding(id);
                s.appendLeft(
                  id.end + offset,
                  `: __props_${propsLocalToPublicMap[id.name]}`
                );
              } else {
                s.appendLeft(
                  id.end + offset,
                  `: ${genPropsAccessExp(propsLocalToPublicMap[id.name])}`
                );
              }
            } else {
              s.appendLeft(id.end + offset, `: ${id.name}.value`);
            }
          }
        } else if (isProp) {
          if (escapeScope) {
            registerEscapedPropBinding(id);
            s.overwrite(
              id.start + offset,
              id.end + offset,
              `__props_${propsLocalToPublicMap[id.name]}`
            );
          } else {
            s.overwrite(
              id.start + offset,
              id.end + offset,
              genPropsAccessExp(propsLocalToPublicMap[id.name])
            );
          }
        } else {
          s.appendLeft(id.end + offset, ".value");
        }
      }
      return true;
    }
    return false;
  }
  const propBindingRefs = {};
  function registerEscapedPropBinding(id) {
    if (!propBindingRefs.hasOwnProperty(id.name)) {
      propBindingRefs[id.name] = true;
      const publicKey = propsLocalToPublicMap[id.name];
      s.prependRight(
        offset,
        `const __props_${publicKey} = ${helper(
          `toRef`
        )}(__props, '${publicKey}');
`
      );
    }
  }
  walkScope(ast, true);
  walk(ast, {
    enter(node, parent) {
      parent && parentStack.push(parent);
      if (isFunctionType(node)) {
        scopeStack.push(currentScope = {});
        walkFunctionParams(node, registerBinding);
        if (node.body.type === "BlockStatement") {
          walkScope(node.body);
        }
        return;
      }
      if (node.type === "CatchClause") {
        scopeStack.push(currentScope = {});
        if (node.param && node.param.type === "Identifier") {
          registerBinding(node.param);
        }
        walkScope(node.body);
        return;
      }
      if (node.type === "BlockStatement" && !isFunctionType(parent)) {
        scopeStack.push(currentScope = {});
        walkScope(node);
        return;
      }
      if (parent && parent.type.startsWith("TS") && !TS_NODE_TYPES.includes(parent.type)) {
        return this.skip();
      }
      if (node.type === "Identifier") {
        const binding = rootScope[node.name];
        if (
          // if inside $$(), skip unless this is a destructured prop binding
          !(escapeScope && (!binding || !binding.isProp)) && isReferencedIdentifier(node, parent, parentStack) && !excludedIds.has(node)
        ) {
          let i = scopeStack.length;
          while (i--) {
            if (rewriteId(scopeStack[i], node, parent, parentStack)) {
              return;
            }
          }
        }
      }
      if (node.type === "CallExpression" && node.callee.type === "Identifier") {
        const callee = node.callee.name;
        const refCall = isRefCreationCall(callee);
        const parent2 = findUpParent();
        if (refCall && (!parent2 || parent2.type !== "VariableDeclarator")) {
          return error(
            `${refCall} can only be used as the initializer of a variable declaration.`,
            node
          );
        }
        if (escapeSymbol && getCurrentScope()[escapeSymbol] === void 0 && callee === escapeSymbol) {
          escapeScope = node;
          s.remove(node.callee.start + offset, node.callee.end + offset);
          if ((parent2 == null ? void 0 : parent2.type) === "ExpressionStatement") {
            let i = (node.leadingComments ? node.leadingComments[0].start : node.start) + offset;
            while (i--) {
              const char = s.original.charAt(i);
              if (char === "\n") {
                s.prependRight(node.start + offset, ";");
                break;
              } else if (!/\s/.test(char)) {
                break;
              }
            }
          }
        }
      }
    },
    leave(node, parent) {
      parent && parentStack.pop();
      if (node.type === "BlockStatement" && !isFunctionType(parent) || isFunctionType(node)) {
        scopeStack.pop();
        currentScope = scopeStack[scopeStack.length - 1] || null;
      }
      if (node === escapeScope) {
        escapeScope = void 0;
      }
    }
  });
  return {
    rootRefs: Object.keys(rootScope).filter((key) => {
      const binding = rootScope[key];
      return binding && !binding.isProp;
    }),
    importedHelpers: [...importedHelpers]
  };
}

// src/core/helper/code.ts?raw
var code_default = "export function createPropsRestProxy(props,excludedKeys){const ret={};for(const key in props){if(!excludedKeys.includes(key)){Object.defineProperty(ret,key,{enumerable:true,get:()=>props[key]})}}return ret}\n";

// src/core/helper/index.ts
var helperId = "/vue-macros/reactivity-transform/helper";

// src/core/index.ts
import {
  DEFINE_PROPS,
  MagicString as MagicString2,
  getTransformResult,
  isCallOf,
  parseSFC,
  resolveObjectKey
} from "@vue-macros/common";
function transformVueSFC(code, id) {
  const s = new MagicString2(code);
  const { script, scriptSetup, getScriptAst, getSetupAst } = parseSFC(code, id);
  let refBindings;
  let propsDestructuredBindings;
  if (script && shouldTransform(script.content)) {
    const offset = script.loc.start.offset;
    const { importedHelpers, rootRefs } = transformAST(
      getScriptAst(),
      s,
      offset
    );
    refBindings = rootRefs;
    importHelpers(s, script.loc.start.offset, importedHelpers);
  }
  if (scriptSetup) {
    const ast = getSetupAst();
    for (const node of ast.body) {
      processDefineProps(node);
    }
    if (propsDestructuredBindings || refBindings || shouldTransform(scriptSetup.content)) {
      const { importedHelpers } = transformAST(
        ast,
        s,
        scriptSetup.loc.start.offset,
        refBindings,
        propsDestructuredBindings
      );
      importHelpers(s, scriptSetup.loc.start.offset, importedHelpers);
    }
  }
  return getTransformResult(s, id);
  function processDefineProps(node) {
    if (node.type !== "VariableDeclaration")
      return;
    const decl = node.declarations.find(
      (decl2) => isCallOf(decl2.init, DEFINE_PROPS)
    );
    if (!decl || decl.id.type !== "ObjectPattern")
      return;
    if (node.declarations.length > 1)
      throw new SyntaxError(
        `${DEFINE_PROPS}() don't support multiple declarations.`
      );
    const offset = scriptSetup.loc.start.offset;
    let defaultStr = "";
    propsDestructuredBindings = {};
    for (const prop of decl.id.properties) {
      if (prop.type === "ObjectProperty") {
        const propKey = resolveObjectKey(prop.key, prop.computed, false);
        if (!propKey) {
          throw new SyntaxError(
            `${DEFINE_PROPS}() destructure cannot use computed key.`
          );
        }
        if (prop.value.type === "AssignmentPattern") {
          const { left, right } = prop.value;
          if (left.type !== "Identifier") {
            throw new SyntaxError(
              `${DEFINE_PROPS}() destructure does not support nested patterns.`
            );
          }
          propsDestructuredBindings[propKey] = {
            local: left.name
          };
          defaultStr += `${propKey}: ${s.sliceNode(right, { offset })},`;
        } else if (prop.value.type === "Identifier") {
          propsDestructuredBindings[propKey] = {
            local: prop.value.name
          };
        } else {
          throw new SyntaxError(
            `${DEFINE_PROPS}() destructure does not support nested patterns.`
          );
        }
      } else {
        s.prependLeft(
          offset,
          `import { createPropsRestProxy } from '${helperId}';
const ${prop.argument.name} = createPropsRestProxy(__props, ${JSON.stringify(
            Object.keys(propsDestructuredBindings)
          )});
`
        );
      }
    }
    const declStr = `withDefaults(${s.sliceNode(decl.init, {
      offset
    })}, { ${defaultStr} })`;
    s.overwriteNode(node, declStr, { offset });
  }
}
function importHelpers(s, offset, helpers) {
  if (helpers.length === 0)
    return;
  s.prependLeft(
    offset,
    `import { ${helpers.map((h) => `${h} as _${h}`).join(", ")} } from 'vue';
`
  );
}

export {
  shouldTransform,
  transform,
  transformAST,
  code_default,
  helperId,
  transformVueSFC
};