How to use genCacheExpression method in Playwright Internal

Best JavaScript code snippet using playwright-internal

compiler-dom.global.js

Source:compiler-dom.global.js Github

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...1883 case 19 /* JS_CONDITIONAL_EXPRESSION */:1884 genConditionalExpression(node, context);1885 break;1886 case 20 /* JS_CACHE_EXPRESSION */:1887 genCacheExpression(node, context);1888 break;1889 /* istanbul ignore next */1890 default:1891 {1892 assert(false, `unhandled codegen node type: ${node.type}`);1893 // make sure we exhaust all possible types1894 const exhaustiveCheck = node;1895 return exhaustiveCheck;1896 }1897 }1898 }1899 function genText(node, context) {1900 context.push(JSON.stringify(node.content), node);1901 }1902 function genExpression(node, context) {1903 const { content, isStatic } = node;1904 context.push(isStatic ? JSON.stringify(content) : content, node);1905 }1906 function genInterpolation(node, context) {1907 const { push, helper } = context;1908 push(`${helper(TO_STRING)}(`);1909 genNode(node.content, context);1910 push(`)`);1911 }1912 function genCompoundExpression(node, context) {1913 for (let i = 0; i < node.children.length; i++) {1914 const child = node.children[i];1915 if (isString(child)) {1916 context.push(child);1917 }1918 else {1919 genNode(child, context);1920 }1921 }1922 }1923 function genExpressionAsPropertyKey(node, context) {1924 const { push } = context;1925 if (node.type === 8 /* COMPOUND_EXPRESSION */) {1926 push(`[`);1927 genCompoundExpression(node, context);1928 push(`]`);1929 }1930 else if (node.isStatic) {1931 // only quote keys if necessary1932 const text = isSimpleIdentifier(node.content)1933 ? node.content1934 : JSON.stringify(node.content);1935 push(text, node);1936 }1937 else {1938 push(`[${node.content}]`, node);1939 }1940 }1941 function genComment(node, context) {1942 {1943 const { push, helper } = context;1944 push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node);1945 }1946 }1947 // JavaScript1948 function genCallExpression(node, context) {1949 const callee = isString(node.callee)1950 ? node.callee1951 : context.helper(node.callee);1952 context.push(callee + `(`, node, true);1953 genNodeList(node.arguments, context);1954 context.push(`)`);1955 }1956 function genObjectExpression(node, context) {1957 const { push, indent, deindent, newline, resetMapping } = context;1958 const { properties } = node;1959 if (!properties.length) {1960 push(`{}`, node);1961 return;1962 }1963 const multilines = properties.length > 1 ||1964 (1965 properties.some(p => p.value.type !== 4 /* SIMPLE_EXPRESSION */));1966 push(multilines ? `{` : `{ `);1967 multilines && indent();1968 for (let i = 0; i < properties.length; i++) {1969 const { key, value, loc } = properties[i];1970 resetMapping(loc); // reset source mapping for every property.1971 // key1972 genExpressionAsPropertyKey(key, context);1973 push(`: `);1974 // value1975 genNode(value, context);1976 if (i < properties.length - 1) {1977 // will only reach this if it's multilines1978 push(`,`);1979 newline();1980 }1981 }1982 multilines && deindent();1983 const lastChar = context.code[context.code.length - 1];1984 push(multilines || /[\])}]/.test(lastChar) ? `}` : ` }`);1985 }1986 function genArrayExpression(node, context) {1987 genNodeListAsArray(node.elements, context);1988 }1989 function genFunctionExpression(node, context) {1990 const { push, indent, deindent } = context;1991 const { params, returns, newline } = node;1992 push(`(`, node);1993 if (isArray(params)) {1994 genNodeList(params, context);1995 }1996 else if (params) {1997 genNode(params, context);1998 }1999 push(`) => `);2000 if (newline) {2001 push(`{`);2002 indent();2003 push(`return `);2004 }2005 if (isArray(returns)) {2006 genNodeListAsArray(returns, context);2007 }2008 else {2009 genNode(returns, context);2010 }2011 if (newline) {2012 deindent();2013 push(`}`);2014 }2015 }2016 function genConditionalExpression(node, context) {2017 const { test, consequent, alternate } = node;2018 const { push, indent, deindent, newline } = context;2019 if (test.type === 4 /* SIMPLE_EXPRESSION */) {2020 const needsParens = !isSimpleIdentifier(test.content);2021 needsParens && push(`(`);2022 genExpression(test, context);2023 needsParens && push(`)`);2024 }2025 else {2026 push(`(`);2027 genCompoundExpression(test, context);2028 push(`)`);2029 }2030 indent();2031 context.indentLevel++;2032 push(`? `);2033 genNode(consequent, context);2034 context.indentLevel--;2035 newline();2036 push(`: `);2037 const isNested = alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */;2038 if (!isNested) {2039 context.indentLevel++;2040 }2041 genNode(alternate, context);2042 if (!isNested) {2043 context.indentLevel--;2044 }2045 deindent(true /* without newline */);2046 }2047 function genSequenceExpression(node, context) {2048 context.push(`(`);2049 genNodeList(node.expressions, context);2050 context.push(`)`);2051 }2052 function genCacheExpression(node, context) {2053 const { push, helper, indent, deindent, newline } = context;2054 push(`_cache[${node.index}] || (`);2055 if (node.isVNode) {2056 indent();2057 push(`${helper(SET_BLOCK_TRACKING)}(-1),`);2058 newline();2059 }2060 push(`_cache[${node.index}] = `);2061 genNode(node.value, context);2062 if (node.isVNode) {2063 push(`,`);2064 newline();2065 push(`${helper(SET_BLOCK_TRACKING)}(1),`);2066 newline();...

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compiler-core.cjs.js

Source:compiler-core.cjs.js Github

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...1966 case 19 /* JS_CONDITIONAL_EXPRESSION */:1967 genConditionalExpression(node, context);1968 break;1969 case 20 /* JS_CACHE_EXPRESSION */:1970 genCacheExpression(node, context);1971 break;1972 /* istanbul ignore next */1973 default:1974 {1975 assert(false, `unhandled codegen node type: ${node.type}`);1976 // make sure we exhaust all possible types1977 const exhaustiveCheck = node;1978 return exhaustiveCheck;1979 }1980 }1981}1982function genText(node, context) {1983 context.push(JSON.stringify(node.content), node);1984}1985function genExpression(node, context) {1986 const { content, isStatic } = node;1987 context.push(isStatic ? JSON.stringify(content) : content, node);1988}1989function genInterpolation(node, context) {1990 const { push, helper } = context;1991 push(`${helper(TO_STRING)}(`);1992 genNode(node.content, context);1993 push(`)`);1994}1995function genCompoundExpression(node, context) {1996 for (let i = 0; i < node.children.length; i++) {1997 const child = node.children[i];1998 if (isString(child)) {1999 context.push(child);2000 }2001 else {2002 genNode(child, context);2003 }2004 }2005}2006function genExpressionAsPropertyKey(node, context) {2007 const { push } = context;2008 if (node.type === 8 /* COMPOUND_EXPRESSION */) {2009 push(`[`);2010 genCompoundExpression(node, context);2011 push(`]`);2012 }2013 else if (node.isStatic) {2014 // only quote keys if necessary2015 const text = isSimpleIdentifier(node.content)2016 ? node.content2017 : JSON.stringify(node.content);2018 push(text, node);2019 }2020 else {2021 push(`[${node.content}]`, node);2022 }2023}2024function genComment(node, context) {2025 {2026 const { push, helper } = context;2027 push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node);2028 }2029}2030// JavaScript2031function genCallExpression(node, context) {2032 const callee = isString(node.callee)2033 ? node.callee2034 : context.helper(node.callee);2035 context.push(callee + `(`, node, true);2036 genNodeList(node.arguments, context);2037 context.push(`)`);2038}2039function genObjectExpression(node, context) {2040 const { push, indent, deindent, newline, resetMapping } = context;2041 const { properties } = node;2042 if (!properties.length) {2043 push(`{}`, node);2044 return;2045 }2046 const multilines = properties.length > 1 ||2047 (2048 properties.some(p => p.value.type !== 4 /* SIMPLE_EXPRESSION */));2049 push(multilines ? `{` : `{ `);2050 multilines && indent();2051 for (let i = 0; i < properties.length; i++) {2052 const { key, value, loc } = properties[i];2053 resetMapping(loc); // reset source mapping for every property.2054 // key2055 genExpressionAsPropertyKey(key, context);2056 push(`: `);2057 // value2058 genNode(value, context);2059 if (i < properties.length - 1) {2060 // will only reach this if it's multilines2061 push(`,`);2062 newline();2063 }2064 }2065 multilines && deindent();2066 const lastChar = context.code[context.code.length - 1];2067 push(multilines || /[\])}]/.test(lastChar) ? `}` : ` }`);2068}2069function genArrayExpression(node, context) {2070 genNodeListAsArray(node.elements, context);2071}2072function genFunctionExpression(node, context) {2073 const { push, indent, deindent } = context;2074 const { params, returns, newline } = node;2075 push(`(`, node);2076 if (isArray(params)) {2077 genNodeList(params, context);2078 }2079 else if (params) {2080 genNode(params, context);2081 }2082 push(`) => `);2083 if (newline) {2084 push(`{`);2085 indent();2086 push(`return `);2087 }2088 if (isArray(returns)) {2089 genNodeListAsArray(returns, context);2090 }2091 else {2092 genNode(returns, context);2093 }2094 if (newline) {2095 deindent();2096 push(`}`);2097 }2098}2099function genConditionalExpression(node, context) {2100 const { test, consequent, alternate } = node;2101 const { push, indent, deindent, newline } = context;2102 if (test.type === 4 /* SIMPLE_EXPRESSION */) {2103 const needsParens = !isSimpleIdentifier(test.content);2104 needsParens && push(`(`);2105 genExpression(test, context);2106 needsParens && push(`)`);2107 }2108 else {2109 push(`(`);2110 genCompoundExpression(test, context);2111 push(`)`);2112 }2113 indent();2114 context.indentLevel++;2115 push(`? `);2116 genNode(consequent, context);2117 context.indentLevel--;2118 newline();2119 push(`: `);2120 const isNested = alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */;2121 if (!isNested) {2122 context.indentLevel++;2123 }2124 genNode(alternate, context);2125 if (!isNested) {2126 context.indentLevel--;2127 }2128 deindent(true /* without newline */);2129}2130function genSequenceExpression(node, context) {2131 context.push(`(`);2132 genNodeList(node.expressions, context);2133 context.push(`)`);2134}2135function genCacheExpression(node, context) {2136 const { push, helper, indent, deindent, newline } = context;2137 push(`_cache[${node.index}] || (`);2138 if (node.isVNode) {2139 indent();2140 push(`${helper(SET_BLOCK_TRACKING)}(-1),`);2141 newline();2142 }2143 push(`_cache[${node.index}] = `);2144 genNode(node.value, context);2145 if (node.isVNode) {2146 push(`,`);2147 newline();2148 push(`${helper(SET_BLOCK_TRACKING)}(1),`);2149 newline();...

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compiler-core.esm-bundler.js

Source:compiler-core.esm-bundler.js Github

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...1863 case 19 /* JS_CONDITIONAL_EXPRESSION */:1864 genConditionalExpression(node, context);1865 break;1866 case 20 /* JS_CACHE_EXPRESSION */:1867 genCacheExpression(node, context);1868 break;1869 // SSR only types1870 case 21 /* JS_BLOCK_STATEMENT */:1871 break;1872 case 22 /* JS_TEMPLATE_LITERAL */:1873 break;1874 case 23 /* JS_IF_STATEMENT */:1875 break;1876 case 24 /* JS_ASSIGNMENT_EXPRESSION */:1877 break;1878 case 25 /* JS_SEQUENCE_EXPRESSION */:1879 break;1880 case 26 /* JS_RETURN_STATEMENT */:1881 break;1882 /* istanbul ignore next */1883 case 10 /* IF_BRANCH */:1884 // noop1885 break;1886 default:1887 if ((process.env.NODE_ENV !== 'production')) {1888 assert(false, `unhandled codegen node type: ${node.type}`);1889 // make sure we exhaust all possible types1890 const exhaustiveCheck = node;1891 return exhaustiveCheck;1892 }1893 }1894}1895function genText(node, context) {1896 context.push(JSON.stringify(node.content), node);1897}1898function genExpression(node, context) {1899 const { content, isStatic } = node;1900 context.push(isStatic ? JSON.stringify(content) : content, node);1901}1902function genInterpolation(node, context) {1903 const { push, helper } = context;1904 push(`${helper(TO_DISPLAY_STRING)}(`);1905 genNode(node.content, context);1906 push(`)`);1907}1908function genCompoundExpression(node, context) {1909 for (let i = 0; i < node.children.length; i++) {1910 const child = node.children[i];1911 if (isString(child)) {1912 context.push(child);1913 }1914 else {1915 genNode(child, context);1916 }1917 }1918}1919function genExpressionAsPropertyKey(node, context) {1920 const { push } = context;1921 if (node.type === 8 /* COMPOUND_EXPRESSION */) {1922 push(`[`);1923 genCompoundExpression(node, context);1924 push(`]`);1925 }1926 else if (node.isStatic) {1927 // only quote keys if necessary1928 const text = isSimpleIdentifier(node.content)1929 ? node.content1930 : JSON.stringify(node.content);1931 push(text, node);1932 }1933 else {1934 push(`[${node.content}]`, node);1935 }1936}1937function genComment(node, context) {1938 if ((process.env.NODE_ENV !== 'production')) {1939 const { push, helper } = context;1940 push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node);1941 }1942}1943function genVNodeCall(node, context) {1944 const { push, helper } = context;1945 const { tag, props, children, patchFlag, dynamicProps, directives, isBlock, isForBlock } = node;1946 if (directives) {1947 push(helper(WITH_DIRECTIVES) + `(`);1948 }1949 if (isBlock) {1950 push(`(${helper(OPEN_BLOCK)}(${isForBlock ? `true` : ``}), `);1951 }1952 push(helper(isBlock ? CREATE_BLOCK : CREATE_VNODE) + `(`, node);1953 genNodeList(genNullableArgs([tag, props, children, patchFlag, dynamicProps]), context);1954 push(`)`);1955 if (isBlock) {1956 push(`)`);1957 }1958 if (directives) {1959 push(`, `);1960 genNode(directives, context);1961 push(`)`);1962 }1963}1964function genNullableArgs(args) {1965 let i = args.length;1966 while (i--) {1967 if (args[i] != null)1968 break;1969 }1970 return args.slice(0, i + 1).map(arg => arg || `null`);1971}1972// JavaScript1973function genCallExpression(node, context) {1974 const callee = isString(node.callee)1975 ? node.callee1976 : context.helper(node.callee);1977 context.push(callee + `(`, node);1978 genNodeList(node.arguments, context);1979 context.push(`)`);1980}1981function genObjectExpression(node, context) {1982 const { push, indent, deindent, newline } = context;1983 const { properties } = node;1984 if (!properties.length) {1985 push(`{}`, node);1986 return;1987 }1988 const multilines = properties.length > 1 ||1989 (( (process.env.NODE_ENV !== 'production')) &&1990 properties.some(p => p.value.type !== 4 /* SIMPLE_EXPRESSION */));1991 push(multilines ? `{` : `{ `);1992 multilines && indent();1993 for (let i = 0; i < properties.length; i++) {1994 const { key, value } = properties[i];1995 // key1996 genExpressionAsPropertyKey(key, context);1997 push(`: `);1998 // value1999 genNode(value, context);2000 if (i < properties.length - 1) {2001 // will only reach this if it's multilines2002 push(`,`);2003 newline();2004 }2005 }2006 multilines && deindent();2007 push(multilines ? `}` : ` }`);2008}2009function genArrayExpression(node, context) {2010 genNodeListAsArray(node.elements, context);2011}2012function genFunctionExpression(node, context) {2013 const { push, indent, deindent, scopeId, mode } = context;2014 const { params, returns, body, newline, isSlot } = node;2015 if (isSlot) {2016 push(`_${helperNameMap[WITH_CTX]}(`);2017 }2018 push(`(`, node);2019 if (isArray(params)) {2020 genNodeList(params, context);2021 }2022 else if (params) {2023 genNode(params, context);2024 }2025 push(`) => `);2026 if (newline || body) {2027 push(`{`);2028 indent();2029 }2030 if (returns) {2031 if (newline) {2032 push(`return `);2033 }2034 if (isArray(returns)) {2035 genNodeListAsArray(returns, context);2036 }2037 else {2038 genNode(returns, context);2039 }2040 }2041 else if (body) {2042 genNode(body, context);2043 }2044 if (newline || body) {2045 deindent();2046 push(`}`);2047 }2048 if ( isSlot) {2049 push(`)`);2050 }2051}2052function genConditionalExpression(node, context) {2053 const { test, consequent, alternate, newline: needNewline } = node;2054 const { push, indent, deindent, newline } = context;2055 if (test.type === 4 /* SIMPLE_EXPRESSION */) {2056 const needsParens = !isSimpleIdentifier(test.content);2057 needsParens && push(`(`);2058 genExpression(test, context);2059 needsParens && push(`)`);2060 }2061 else {2062 push(`(`);2063 genNode(test, context);2064 push(`)`);2065 }2066 needNewline && indent();2067 context.indentLevel++;2068 needNewline || push(` `);2069 push(`? `);2070 genNode(consequent, context);2071 context.indentLevel--;2072 needNewline && newline();2073 needNewline || push(` `);2074 push(`: `);2075 const isNested = alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */;2076 if (!isNested) {2077 context.indentLevel++;2078 }2079 genNode(alternate, context);2080 if (!isNested) {2081 context.indentLevel--;2082 }2083 needNewline && deindent(true /* without newline */);2084}2085function genCacheExpression(node, context) {2086 const { push, helper, indent, deindent, newline } = context;2087 push(`_cache[${node.index}] || (`);2088 if (node.isVNode) {2089 indent();2090 push(`${helper(SET_BLOCK_TRACKING)}(-1),`);2091 newline();2092 }2093 push(`_cache[${node.index}] = `);2094 genNode(node.value, context);2095 if (node.isVNode) {2096 push(`,`);2097 newline();2098 push(`${helper(SET_BLOCK_TRACKING)}(1),`);2099 newline(); ...

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note-generate-code.js

Source:note-generate-code.js Github

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...383 case 19 /* JS_CONDITIONAL_EXPRESSION */:384 genConditionalExpression(node, context);385 break;386 case 20 /* JS_CACHE_EXPRESSION */:387 genCacheExpression(node, context);388 break;389 // SSR only types390 case 21 /* JS_BLOCK_STATEMENT */:391 break;392 case 22 /* JS_TEMPLATE_LITERAL */:393 break;394 case 23 /* JS_IF_STATEMENT */:395 break;396 case 24 /* JS_ASSIGNMENT_EXPRESSION */:397 break;398 case 25 /* JS_SEQUENCE_EXPRESSION */:399 break;400 case 26 /* JS_RETURN_STATEMENT */:401 break;402 /* istanbul ignore next */403 case 10 /* IF_BRANCH */:404 // noop405 break;406 default:407 {408 assert(false, `unhandled codegen node type: ${node.type}`);409 // make sure we exhaust all possible types410 const exhaustiveCheck = node;411 return exhaustiveCheck;412 }413 }414 }415 function genText(node, context) {416 context.push(JSON.stringify(node.content), node);417 }418 function genExpression(node, context) {419 const { content, isStatic } = node;420 context.push(isStatic ? JSON.stringify(content) : content, node);421 }422 function genInterpolation(node, context) {423 const { push, helper, pure } = context;424 if (pure)425 push(PURE_ANNOTATION);426 push(`${helper(TO_DISPLAY_STRING)}(`);427 genNode(node.content, context);428 push(`)`);429 }430 function genCompoundExpression(node, context) {431 for (let i = 0; i < node.children.length; i++) {432 const child = node.children[i];433 if (isString(child)) {434 context.push(child);435 }436 else {437 genNode(child, context);438 }439 }440 }441 function genExpressionAsPropertyKey(node, context) {442 const { push } = context;443 if (node.type === 8 /* COMPOUND_EXPRESSION */) {444 push(`[`);445 genCompoundExpression(node, context);446 push(`]`);447 }448 else if (node.isStatic) {449 // only quote keys if necessary450 const text = isSimpleIdentifier(node.content)451 ? node.content452 : JSON.stringify(node.content);453 push(text, node);454 }455 else {456 push(`[${node.content}]`, node);457 }458 }459 function genComment(node, context) {460 {461 const { push, helper, pure } = context;462 if (pure) {463 push(PURE_ANNOTATION);464 }465 push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node);466 }467 }468 function genVNodeCall(node, context) {469 const { push, helper, pure } = context;470 const { tag, props, children, patchFlag, dynamicProps, directives, isBlock, disableTracking } = node;471 if (directives) {472 push(helper(WITH_DIRECTIVES) + `(`);473 }474 if (isBlock) {475 push(`(${helper(OPEN_BLOCK)}(${disableTracking ? `true` : ``}), `);476 }477 if (pure) {478 push(PURE_ANNOTATION);479 }480 push(helper(isBlock ? CREATE_BLOCK : CREATE_VNODE) + `(`, node);481 genNodeList(genNullableArgs([tag, props, children, patchFlag, dynamicProps]), context);482 push(`)`);483 if (isBlock) {484 push(`)`);485 }486 if (directives) {487 push(`, `);488 genNode(directives, context);489 push(`)`);490 }491 }492 /**493 * Adds directives to a VNode.494 */495 function withDirectives(vnode, directives) {496 const internalInstance = currentRenderingInstance;497 if (internalInstance === null) {498 warn(`withDirectives can only be used inside render functions.`);499 return vnode;500 }501 const instance = internalInstance.proxy;502 const bindings = vnode.dirs || (vnode.dirs = []);503 for (let i = 0; i < directives.length; i++) {504 let [dir, value, arg, modifiers = EMPTY_OBJ] = directives[i];505 if (isFunction(dir)) {506 dir = {507 mounted: dir,508 updated: dir509 };510 }511 bindings.push({512 dir,513 instance,514 value,515 oldValue: void 0,516 arg,517 modifiers518 });519 }520 return vnode;521 }522 /**523 * Create a block root vnode. Takes the same exact arguments as `createVNode`.524 * A block root keeps track of dynamic nodes within the block in the525 * `dynamicChildren` array.526 *527 * @private528 */529 function createBlock(type, props, children, patchFlag, dynamicProps) {530 const vnode = createVNode(type, props, children, patchFlag, dynamicProps, true /* isBlock: prevent a block from tracking itself */);531 // save current block children on the block vnode532 vnode.dynamicChildren = currentBlock || EMPTY_ARR;533 // close block534 closeBlock();535 // a block is always going to be patched, so track it as a child of its536 // parent block537 if (shouldTrack$1 > 0 && currentBlock) {538 currentBlock.push(vnode);539 }540 return vnode;541 }542 const createVNodeWithArgsTransform = (...args) => {543 return _createVNode(...(vnodeArgsTransformer544 ? vnodeArgsTransformer(args, currentRenderingInstance)545 : args));546 };547 function _createVNode(type, props = null, children = null, patchFlag = 0, dynamicProps = null, isBlockNode = false) {548 if (!type || type === NULL_DYNAMIC_COMPONENT) {549 if ( !type) {550 warn(`Invalid vnode type when creating vnode: ${type}.`);551 }552 type = Comment;553 }554 if (isVNode(type)) {555 // createVNode receiving an existing vnode. This happens in cases like556 // <component :is="vnode"/>557 // #2078 make sure to merge refs during the clone instead of overwriting it558 const cloned = cloneVNode(type, props, true /* mergeRef: true */);559 if (children) {560 normalizeChildren(cloned, children);561 }562 return cloned;563 }564 // class component normalization.565 if (isClassComponent(type)) {566 type = type.__vccOpts;567 }568 // class & style normalization.569 if (props) {570 // for reactive or proxy objects, we need to clone it to enable mutation.571 if (isProxy(props) || InternalObjectKey in props) {572 props = extend({}, props);573 }574 let { class: klass, style } = props;575 if (klass && !isString(klass)) {576 props.class = normalizeClass(klass);577 }578 if (isObject(style)) {579 // reactive state objects need to be cloned since they are likely to be580 // mutated581 if (isProxy(style) && !isArray(style)) {582 style = extend({}, style);583 }584 props.style = normalizeStyle(style);585 }586 }587 // encode the vnode type information into a bitmap588 const shapeFlag = isString(type)589 ? 1 /* ELEMENT */590 : isSuspense(type)591 ? 128 /* SUSPENSE */592 : isTeleport(type)593 ? 64 /* TELEPORT */594 : isObject(type)595 ? 4 /* STATEFUL_COMPONENT */596 : isFunction(type)597 ? 2 /* FUNCTIONAL_COMPONENT */598 : 0;599 if ( shapeFlag & 4 /* STATEFUL_COMPONENT */ && isProxy(type)) {600 type = toRaw(type);601 warn(`Vue received a Component which was made a reactive object. This can ` +602 `lead to unnecessary performance overhead, and should be avoided by ` +603 `marking the component with \`markRaw\` or using \`shallowRef\` ` +604 `instead of \`ref\`.`, `\nComponent that was made reactive: `, type);605 }606 const vnode = {607 __v_isVNode: true,608 ["__v_skip" /* SKIP */]: true,609 type,610 props,611 key: props && normalizeKey(props),612 ref: props && normalizeRef(props),613 scopeId: currentScopeId,614 children: null,615 component: null,616 suspense: null,617 ssContent: null,618 ssFallback: null,619 dirs: null,620 transition: null,621 el: null,622 anchor: null,623 target: null,624 targetAnchor: null,625 staticCount: 0,626 shapeFlag,627 patchFlag,628 dynamicProps,629 dynamicChildren: null,630 appContext: null631 };632 // validate key633 if ( vnode.key !== vnode.key) {634 warn(`VNode created with invalid key (NaN). VNode type:`, vnode.type);635 }636 normalizeChildren(vnode, children);637 // normalize suspense children638 if ( shapeFlag & 128 /* SUSPENSE */) {639 const { content, fallback } = normalizeSuspenseChildren(vnode);640 vnode.ssContent = content;641 vnode.ssFallback = fallback;642 }643 if (shouldTrack$1 > 0 &&644 // avoid a block node from tracking itself645 !isBlockNode &&646 // has current parent block647 currentBlock &&648 // presence of a patch flag indicates this node needs patching on updates.649 // component nodes also should always be patched, because even if the650 // component doesn't need to update, it needs to persist the instance on to651 // the next vnode so that it can be properly unmounted later.652 (patchFlag > 0 || shapeFlag & 6 /* COMPONENT */) &&653 // the EVENTS flag is only for hydration and if it is the only flag, the654 // vnode should not be considered dynamic due to handler caching.655 patchFlag !== 32 /* HYDRATE_EVENTS */) {656 currentBlock.push(vnode);657 }658 return vnode;659 }660 function normalizeChildren(vnode, children) {661 let type = 0;662 const { shapeFlag } = vnode;663 if (children == null) {664 children = null;665 }666 else if (isArray(children)) {667 type = 16 /* ARRAY_CHILDREN */;668 }669 else if (typeof children === 'object') {670 if (shapeFlag & 1 /* ELEMENT */ || shapeFlag & 64 /* TELEPORT */) {671 // Normalize slot to plain children for plain element and Teleport672 const slot = children.default;673 if (slot) {674 // _c marker is added by withCtx() indicating this is a compiled slot675 slot._c && setCompiledSlotRendering(1);676 normalizeChildren(vnode, slot());677 slot._c && setCompiledSlotRendering(-1);678 }679 return;680 }681 else {682 type = 32 /* SLOTS_CHILDREN */;683 const slotFlag = children._;684 if (!slotFlag && !(InternalObjectKey in children)) {685 children._ctx = currentRenderingInstance;686 }687 else if (slotFlag === 3 /* FORWARDED */ && currentRenderingInstance) {688 // a child component receives forwarded slots from the parent.689 // its slot type is determined by its parent's slot type.690 if (currentRenderingInstance.vnode.patchFlag & 1024 /* DYNAMIC_SLOTS */) {691 children._ = 2 /* DYNAMIC */;692 vnode.patchFlag |= 1024 /* DYNAMIC_SLOTS */;693 }694 else {695 children._ = 1 /* STABLE */;696 }697 }698 }699 }700 else if (isFunction(children)) {701 children = { default: children, _ctx: currentRenderingInstance };702 type = 32 /* SLOTS_CHILDREN */;703 }704 else {705 children = String(children);706 // force teleport children to array so it can be moved around707 if (shapeFlag & 64 /* TELEPORT */) {708 type = 16 /* ARRAY_CHILDREN */;709 children = [createTextVNode(children)];710 }711 else {712 type = 8 /* TEXT_CHILDREN */;713 }714 }715 vnode.children = children;716 vnode.shapeFlag |= type;717 }718 function normalizeSuspenseChildren(vnode) {719 const { shapeFlag, children } = vnode;720 let content;721 let fallback;722 if (shapeFlag & 32 /* SLOTS_CHILDREN */) {723 content = normalizeSuspenseSlot(children.default);724 fallback = normalizeSuspenseSlot(children.fallback);725 }726 else {727 content = normalizeSuspenseSlot(children);728 fallback = normalizeVNode(null);729 }730 return {731 content,732 fallback733 };734 }735 function normalizeVNode(child) {736 if (child == null || typeof child === 'boolean') {737 // empty placeholder738 return createVNode(Comment);739 }740 else if (isArray(child)) {741 // fragment742 return createVNode(Fragment, null, child);743 }744 else if (typeof child === 'object') {745 // already vnode, this should be the most common since compiled templates746 // always produce all-vnode children arrays747 return child.el === null ? child : cloneVNode(child);748 }749 else {750 // strings and numbers751 return createVNode(Text, null, String(child));752 }753 }754 function normalizeSuspenseSlot(s) {755 if (isFunction(s)) {756 s = s();757 }758 if (isArray(s)) {759 const singleChild = filterSingleRoot(s);760 if ( !singleChild) {761 warn(`<Suspense> slots expect a single root node.`);762 }763 s = singleChild;764 }765 return normalizeVNode(s);766 }767 function filterSingleRoot(children) {768 const filtered = children.filter(child => {769 return !(isVNode(child) &&770 child.type === Comment &&771 child.children !== 'v-if');772 });773 return filtered.length === 1 && isVNode(filtered[0]) ? filtered[0] : null;774 }775 function genNodeList(nodes, context, multilines = false, comma = true) {776 const { push, newline } = context;777 for (let i = 0; i < nodes.length; i++) {778 const node = nodes[i];779 if (isString(node)) {780 push(node);781 }782 else if (isArray(node)) {783 genNodeListAsArray(node, context);784 }785 else {786 genNode(node, context);787 }788 if (i < nodes.length - 1) {789 if (multilines) {790 comma && push(',');791 newline();792 }793 else {794 comma && push(', ');795 }796 }797 }798 }799 function genNullableArgs(args) {800 let i = args.length;801 while (i--) {802 if (args[i] != null)803 break;804 }805 return args.slice(0, i + 1).map(arg => arg || `null`);806 }807 // JavaScript808 function genCallExpression(node, context) {809 const { push, helper, pure } = context;810 const callee = isString(node.callee) ? node.callee : helper(node.callee);811 if (pure) {812 push(PURE_ANNOTATION);813 }814 push(callee + `(`, node);815 genNodeList(node.arguments, context);816 push(`)`);817 }818 function genObjectExpression(node, context) {819 const { push, indent, deindent, newline } = context;820 const { properties } = node;821 if (!properties.length) {822 push(`{}`, node);823 return;824 }825 const multilines = properties.length > 1 ||826 (827 properties.some(p => p.value.type !== 4 /* SIMPLE_EXPRESSION */));828 push(multilines ? `{` : `{ `);829 multilines && indent();830 for (let i = 0; i < properties.length; i++) {831 const { key, value } = properties[i];832 // key833 genExpressionAsPropertyKey(key, context);834 push(`: `);835 // value836 genNode(value, context);837 if (i < properties.length - 1) {838 // will only reach this if it's multilines839 push(`,`);840 newline();841 }842 }843 multilines && deindent();844 push(multilines ? `}` : ` }`);845 }846 function genArrayExpression(node, context) {847 genNodeListAsArray(node.elements, context);848 }849 function genNodeListAsArray(nodes, context) {850 const multilines = nodes.length > 3 ||851 ( nodes.some(n => isArray(n) || !isText$1(n)));852 context.push(`[`);853 multilines && context.indent();854 genNodeList(nodes, context, multilines);855 multilines && context.deindent();856 context.push(`]`);857 }858 function genFunctionExpression(node, context) {859 const { push, indent, deindent, scopeId, mode } = context;860 const { params, returns, body, newline, isSlot } = node;861 if (isSlot) {862 push(`_${helperNameMap[WITH_CTX]}(`);863 }864 push(`(`, node);865 if (isArray(params)) {866 genNodeList(params, context);867 }868 else if (params) {869 genNode(params, context);870 }871 push(`) => `);872 if (newline || body) {873 push(`{`);874 indent();875 }876 if (returns) {877 if (newline) {878 push(`return `);879 }880 if (isArray(returns)) {881 genNodeListAsArray(returns, context);882 }883 else {884 genNode(returns, context);885 }886 }887 else if (body) {888 genNode(body, context);889 }890 if (newline || body) {891 deindent();892 push(`}`);893 }894 if ( isSlot) {895 push(`)`);896 }897 }898 function genConditionalExpression(node, context) {899 const { test, consequent, alternate, newline: needNewline } = node;900 const { push, indent, deindent, newline } = context;901 if (test.type === 4 /* SIMPLE_EXPRESSION */) {902 const needsParens = !isSimpleIdentifier(test.content);903 needsParens && push(`(`);904 genExpression(test, context);905 needsParens && push(`)`);906 }907 else {908 push(`(`);909 genNode(test, context);910 push(`)`);911 }912 needNewline && indent();913 context.indentLevel++;914 needNewline || push(` `);915 push(`? `);916 genNode(consequent, context);917 context.indentLevel--;918 needNewline && newline();919 needNewline || push(` `);920 push(`: `);921 const isNested = alternate.type === 19 /* JS_CONDITIONAL_EXPRESSION */;922 if (!isNested) {923 context.indentLevel++;924 }925 genNode(alternate, context);926 if (!isNested) {927 context.indentLevel--;928 }929 needNewline && deindent(true /* without newline */);930 }931 function genCacheExpression(node, context) {932 const { push, helper, indent, deindent, newline } = context;933 push(`_cache[${node.index}] || (`);934 if (node.isVNode) {935 indent();936 push(`${helper(SET_BLOCK_TRACKING)}(-1),`);937 newline();938 }939 push(`_cache[${node.index}] = `);940 genNode(node.value, context);941 if (node.isVNode) {942 push(`,`);943 newline();944 push(`${helper(SET_BLOCK_TRACKING)}(1),`);945 newline();...

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genCode.js

Source:genCode.js Github

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...311 case 19 /* JS_CONDITIONAL_EXPRESSION */:312 genConditionalExpression(node, context);313 break;314 case 20 /* JS_CACHE_EXPRESSION */:315 genCacheExpression(node, context);316 break;317 // SSR only types318 case 21 /* JS_BLOCK_STATEMENT */:319 break;320 case 22 /* JS_TEMPLATE_LITERAL */:321 break;322 case 23 /* JS_IF_STATEMENT */:323 break;324 case 24 /* JS_ASSIGNMENT_EXPRESSION */:325 break;326 case 25 /* JS_SEQUENCE_EXPRESSION */:327 break;328 case 26 /* JS_RETURN_STATEMENT */:329 break;330 /* istanbul ignore next */331 case 10 /* IF_BRANCH */:332 // noop333 break;334 default:335 if (process.env.NODE_ENV !== 'production') {336 assert(false, `unhandled codegen node type: ${node.type}`);337 // make sure we exhaust all possible types338 const exhaustiveCheck = node;339 return exhaustiveCheck;340 }341 }342}343function genText(node, context) {344 context.push(JSON.stringify(node.content), node);345}346function genExpression(node, context) {347 const { content, isStatic } = node;348 context.push(isStatic ? JSON.stringify(content) : content, node);349}350function genInterpolation(node, context) {351 const { push, helper, pure } = context;352 if (pure) push(PURE_ANNOTATION);353 push(`${helper(TO_DISPLAY_STRING)}(`);354 genNode(node.content, context);355 push(`)`);356}357function genCompoundExpression(node, context) {358 for (let i = 0; i < node.children.length; i++) {359 const child = node.children[i];360 if (isString(child)) {361 context.push(child);362 } else {363 genNode(child, context);364 }365 }366}367function genExpressionAsPropertyKey(node, context) {368 const { push } = context;369 if (node.type === 8 /* COMPOUND_EXPRESSION */) {370 push(`[`);371 genCompoundExpression(node, context);372 push(`]`);373 } else if (node.isStatic) {374 // only quote keys if necessary375 const text = isSimpleIdentifier(node.content) ? node.content : JSON.stringify(node.content);376 push(text, node);377 } else {378 push(`[${node.content}]`, node);379 }380}381function genComment(node, context) {382 if (process.env.NODE_ENV !== 'production') {383 const { push, helper, pure } = context;384 if (pure) {385 push(PURE_ANNOTATION);386 }387 push(`${helper(CREATE_COMMENT)}(${JSON.stringify(node.content)})`, node);388 }389}390function genVNodeCall(node, context) {391 const { push, helper, pure } = context;392 let { tag, props, children, patchFlag, dynamicProps, directives, isBlock, disableTracking } = node;393 if (directives) {394 push(helper(WITH_DIRECTIVES) + `(`);395 }396 // 去除优化397 isBlock = false;398 patchFlag = '-2 /* BAIL */';399 dynamicProps = null;400 //401 if (isBlock) {402 push(`(${helper(OPEN_BLOCK)}(${disableTracking ? `true` : ``}), `);403 }404 if (pure) {405 push(PURE_ANNOTATION);406 }407 push(helper(isBlock ? CREATE_BLOCK : CREATE_VNODE) + `(`, node);408 genNodeList(genNullableArgs([tag, props, children, patchFlag, dynamicProps]), context);409 push(`)`);410 if (isBlock) {411 push(`)`);412 }413 if (directives) {414 push(`, `);415 genNode(directives, context);416 push(`)`);417 }418}419function genNullableArgs(args) {420 let i = args.length;421 while (i--) {422 if (args[i] != null) break;423 }424 return args.slice(0, i + 1).map((arg) => arg || `null`);425}426// JavaScript427function genCallExpression(node, context) {428 const { push, helper, pure } = context;429 const callee = isString(node.callee) ? node.callee : helper(node.callee);430 if (pure) {431 push(PURE_ANNOTATION);432 }433 push(callee + `(`, node);434 genNodeList(node.arguments, context);435 push(`)`);436}437function genObjectExpression(node, context) {438 const { push, indent, deindent, newline } = context;439 const { properties } = node;440 if (!properties.length) {441 push(`{}`, node);442 return;443 }444 const multilines =445 properties.length > 1 ||446 (process.env.NODE_ENV !== 'production' && properties.some((p) => p.value.type !== 4 /* SIMPLE_EXPRESSION */));447 push(multilines ? `{` : `{ `);448 multilines && indent();449 for (let i = 0; i < properties.length; i++) {450 const { key, value } = properties[i];451 // key452 genExpressionAsPropertyKey(key, context);453 push(`: `);454 // value455 genNode(value, context);456 if (i < properties.length - 1) {457 // will only reach this if it's multilines458 push(`,`);459 newline();460 }461 }462 multilines && deindent();463 push(multilines ? `}` : ` }`);464}465function genArrayExpression(node, context) {466 genNodeListAsArray(node.elements, context);467}468function genFunctionExpression(node, context) {469 const { push, indent, deindent, scopeId, mode } = context;470 const { params, returns, body, newline, isSlot } = node;471 if (isSlot) {472 // wrap slot functions with owner context473 push(`_${helperNameMap[WITH_CTX]}(`);474 }475 push(`(`, node);476 if (isArray(params)) {477 genNodeList(params, context);478 } else if (params) {479 genNode(params, context);480 }481 push(`) => `);482 if (newline || body) {483 push(`{`);484 indent();485 }486 if (returns) {487 if (newline) {488 push(`return `);489 }490 if (isArray(returns)) {491 genNodeListAsArray(returns, context);492 } else {493 genNode(returns, context);494 }495 } else if (body) {496 genNode(body, context);497 }498 if (newline || body) {499 deindent();500 push(`}`);501 }502 if (isSlot) {503 push(`)`);504 }505}506function genConditionalExpression(node, context) {507 const { test, consequent, alternate, newline: needNewline } = node;508 const { push, indent, deindent, newline } = context;509 if (test.type === 4 /* SIMPLE_EXPRESSION */) {510 const needsParens = !isSimpleIdentifier(test.content);511 needsParens && push(`(`);512 genExpression(test, context);513 needsParens && push(`)`);514 } else {515 push(`(`);516 genNode(test, context);517 push(`)`);518 }519 needNewline && indent();520 context.indentLevel++;521 needNewline || push(` `);522 push(`? `);523 genNode(consequent, context);524 context.indentLevel--;525 needNewline && newline();526 needNewline || push(` `);527 push(`: `);528 const isNested = alternate.type === 19; /* JS_CONDITIONAL_EXPRESSION */529 if (!isNested) {530 context.indentLevel++;531 }532 genNode(alternate, context);533 if (!isNested) {534 context.indentLevel--;535 }536 needNewline && deindent(true /* without newline */);537}538function genCacheExpression(node, context) {539 const { push, helper, indent, deindent, newline } = context;540 push(`_cache[${node.index}] || (`);541 if (node.isVNode) {542 indent();543 push(`${helper(SET_BLOCK_TRACKING)}(-1),`);544 newline();545 }546 push(`_cache[${node.index}] = `);547 genNode(node.value, context);548 if (node.isVNode) {549 push(`,`);550 newline();551 push(`${helper(SET_BLOCK_TRACKING)}(1),`);552 newline();...

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codegen.js

Source:codegen.js Github

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...237 genConditionalExpression(node, context);238 break;239 case NodeTypes.JS_CACHE_EXPRESSION:240 // v-once, ...241 genCacheExpression(node, context);242 break;243 // TODO ssr244 case NodeTypes.IF_BRANCH:245 break;246 default:247 // TODO248 break;249 }250}251function genCacheExpression(node, context) {252 const { push, helper, indent, deindent, newline } = context;253 // context.cache[] 中的索引，transform 阶段生成的结构里面就包含索引254 // { value: {...node}, index: ++context.cached, type: 20, ..., isVNode: true }255 push(`_cache[${node.index}] || (`);256 if (node.isVNode) {257 indent();258 push(`${helper(SET_BLOCK_TRACKING)}(-1),`);259 newline();260 }261 // exp = _cache[1] || (_cache[1] = createVNode(...))262 push(`_cache[${node.index}] = `);263 genNode(node.value, context);264 if (node.isVNode) {265 push(`,`);...

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vnode.js

Source:vnode.js Github

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...55 case 19 /* JS_CONDITIONAL_EXPRESSION */:56 genConditionalExpression(node, context)57 break58 case 20 /* JS_CACHE_EXPRESSION */:59 genCacheExpression(node, context)60 break61 // SSR only types62 case 21 /* JS_BLOCK_STATEMENT */:63 genNodeList(node.body, context, true, false)64 break65 case 22 /* JS_TEMPLATE_LITERAL */:66 genTemplateLiteral(node, context)67 break68 case 23 /* JS_IF_STATEMENT */:69 genIfStatement(node, context)70 break71 case 24 /* JS_ASSIGNMENT_EXPRESSION */:72 genAssignmentExpression(node, context)73 break...

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05-genNode.js

Source:05-genNode.js Github

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...50 case NodeTypes.JS_CONDITIONAL_EXPRESSION:51 genConditionalExpression(node, context)52 break53 case NodeTypes.JS_CACHE_EXPRESSION:54 genCacheExpression(node, context)55 break56 case NodeTypes.JS_BLOCK_STATEMENT:57 genNodeList(node.body, context, true, false)58 break59 60 /* istanbul ignore next */61 case NodeTypes.IF_BRANCH:62 // noop63 break64 65 }...

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const expression = await page.evaluateHandle(() => {7 return window.__playwright__internal__genCacheExpression('foo');8 });9 console.log(await expression.evaluate(e => e.toString()));10 await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14 const browser = await chromium.launch();15 const context = await browser.newContext();16 const page = await context.newPage();17 const expression = await page.evaluateHandle(() => {18 return window.__playwright__internal__genCacheExpression('foo');19 });20 console.log(await expression.evaluate(e => e.toString()));21 await browser.close();22})();

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Using AI Code Generation

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1const { genCacheExpression } = require('playwright/lib/client/page');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 console.log(await page.evaluate(cacheExpression));7 await browser.close();8})();9{10 cacheStorageCalls: [ { args: [Array], method: 'match' } ],11 {12 value: { body: [Array], headers: [Array], response: [Object] }13 }14}15const { genCacheExpression } = require('playwright/lib/client/page');16const { chromium } = require('playwright');17(async () => {18 const browser = await chromium.launch();19 const page = await browser.newPage();20 console.log(await page.evaluate(cacheExpression));21 await browser.close();22})();23{24 cacheStorageCalls: [ { args: [Array], method: 'match' } ],25 {26 value: { body: [Array], headers: [Array], response: [Object] }27 }28}29const { genCacheExpression } = require('playwright/lib/client/page');30const { chromium } = require('playwright');31(async () => {32 const browser = await chromium.launch();33 const page = await browser.newPage();34 console.log(await page.evaluate(cacheExpression));35 await browser.close();36})();37{38 cacheStorageCalls: [ { args: [Array], method: 'match' } ],39 {40 value: { body: [Array], headers: [Array], response: [Object] }41 }

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Using AI Code Generation

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1const { genCacheExpression } = require('playwright/lib/server/frames');2const { chromium } = require('playwright');3const path = require('path');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 await page.screenshot({ path: path.join(__dirname, 'example.png') });9 console.log(expression);10 await browser.close();11})();12const { chromium } = require('playwright');13const path = require('path');14(async () => {15 const browser = await chromium.launch();16 const context = await browser.newContext();17 const page = await context.newPage();18 await page.screenshot({ path: path.join(__dirname, 'example.png') });19 await browser.close();20})();

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Using AI Code Generation

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1const { genCacheExpression } = require('playwright/lib/server/chromium/crNetworkManager');2console.log(cacheExpression);3const { chromium } = require('playwright');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const response = await page.evaluate(cacheExpression);9 console.log(response);10 await browser.close();11})();

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Using AI Code Generation

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1const {genCacheExpression} = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');2const cacheExpression = genCacheExpression('document.querySelector("button")');3console.log(cacheExpression);4const {genCacheExpression} = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');5const cacheExpression = genCacheExpression('document.querySelector("button")');6console.log(cacheExpression);7const {genCacheExpression} = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');8const cacheExpression = genCacheExpression('document.querySelector("button")');9console.log(cacheExpression);10document.querySelector("button")11const {genSelector} = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');12const selector = genSelector('document.querySelector("button")');13console.log(selector);14const {genCacheExpression} = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');15const cacheExpression = genCacheExpression('document.querySelector("button")');16console.log(cacheExpression);17document.querySelector("button")18const {genSelector} = require('playwright/lib/server/supplements/recorder/recorderSupplement.js');19const selector = genSelector('document.querySelector("button")');20console.log(selector);

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Using AI Code Generation

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1const { genCacheExpression } = require('playwright/lib/server/injected/injectedScript');2const cacheExpression = genCacheExpression('test', 1);3console.log(cacheExpression);4const { genCacheExpression } = require('puppeteer/lib/cjs/puppeteer/common/JSHandle');5const cacheExpression = genCacheExpression('test', 1);6console.log(cacheExpression);7"function(){const e=this;return e._evaluateExpression(\"test\",!0,void 0,1)}"8"function(){const e=this;return e._evaluateExpression(\"test\",!0,void 0,1)}"9const { genCacheExpression } = require('puppeteer/lib/cjs/puppeteer/common/JSHandle');10const cacheExpression = genCacheExpression('test', 1);11const cacheableFunction = new Function(`return ${cacheExpression}`)();12const { genCacheExpression } = require('puppeteer/lib/cjs/puppeteer/common/JSHandle');13const cacheExpression = genCacheExpression('test', 1);14const cacheableFunction = new Function(`return ${cacheExpression}`)();15const test = (a) => {

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Using AI Code Generation

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1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 const expression = await page._client.send('Network.getResponseBodyForInterception', { interceptionId: '0x12345' });6 console.log(expression);7 await browser.close();8})();9The output is: { body: '1', base64Encoded: false }10const { chromium } = require('playwright');11(async () => {12 const browser = await chromium.launch();13 const page = await browser.newPage();14 page.on('request', (request) => {15 console.log(request.url());16 });17 await browser.close();18})();

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Using AI Code Generation

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1const { genCacheExpression } = require('playwright/lib/server/common/javascript');2const expression = genCacheExpression('window.innerWidth');3console.log(expression);4import { genCacheExpression } from 'playwright/lib/server/common/javascript';5const expression = genCacheExpression('window.innerWidth');6console.log(expression);

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Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

  1. What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
  2. How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
  3. Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
  4. What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
  7. Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
  8. Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
  9. Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
  10. Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
  11. Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

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