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How to use ExpressionBuilderVisitor method in wpt
Best JavaScript code snippet using wpt
function.ts
Source:function.ts 
...1454 return null;1455 }1456 const result:string[] = [];1457 for (const instruction of instructions) {1458 const statementBuilder = new ExpressionBuilderVisitor();1459 instruction.visit(statementBuilder);1460 result.push(statementBuilder.toString());1461 }1462 for (let i = 0, ii = stack.length; i < ii; i++) {1463 const expr = stack[i],1464 statementBuilder = new ExpressionBuilderVisitor();1465 expr.visit( statementBuilder );1466 const min = range[i * 2],1467 max = range[i * 2 + 1];1468 const out:(number|string)[] = [ statementBuilder.toString() ];1469 if( min > (<AstMinMax>expr).min )1470 {1471 out.unshift("Math.max(", min, ", ");1472 out.push(")");1473 }1474 if( max < (<AstMinMax>expr).max )1475 {1476 out.unshift("Math.min(", max, ", ");1477 out.push(")");1478 }...
function.js
Source:function.js
...765 AstVariableDefinition.prototype = Object.create(AstNode.prototype);766 AstVariableDefinition.prototype.visit = function (visitor) {767 visitor.visitVariableDefinition(this);768 };769 function ExpressionBuilderVisitor() {770 this.parts = [];771 }772 ExpressionBuilderVisitor.prototype = {773 visitArgument: function (arg) {774 this.parts.push('Math.max(', arg.min, ', Math.min(',775 arg.max, ', src[srcOffset + ', arg.index, ']))');776 },777 visitVariable: function (variable) {778 this.parts.push('v', variable.index);779 },780 visitLiteral: function (literal) {781 this.parts.push(literal.number);782 },783 visitBinaryOperation: function (operation) {784 this.parts.push('(');785 operation.arg1.visit(this);786 this.parts.push(' ', operation.op, ' ');787 operation.arg2.visit(this);788 this.parts.push(')');789 },790 visitVariableDefinition: function (definition) {791 this.parts.push('var ');792 definition.variable.visit(this);793 this.parts.push(' = ');794 definition.arg.visit(this);795 this.parts.push(';');796 },797 visitMin: function (max) {798 this.parts.push('Math.min(');799 max.arg.visit(this);800 this.parts.push(', ', max.max, ')');801 },802 toString: function () {803 return this.parts.join('');804 }805 };806 function buildAddOperation(num1, num2) {807 if (num2.type === 'literal' && num2.number === 0) {808 // optimization: second operand is 0809 return num1;810 }811 if (num1.type === 'literal' && num1.number === 0) {812 // optimization: first operand is 0813 return num2;814 }815 if (num2.type === 'literal' && num1.type === 'literal') {816 // optimization: operands operand are literals817 return new AstLiteral(num1.number + num2.number);818 }819 return new AstBinaryOperation('+', num1, num2,820 num1.min + num2.min, num1.max + num2.max);821 }822 function buildMulOperation(num1, num2) {823 if (num2.type === 'literal') {824 // optimization: second operands is a literal...825 if (num2.number === 0) {826 return new AstLiteral(0); // and it's 0827 } else if (num2.number === 1) {828 return num1; // and it's 1829 } else if (num1.type === 'literal') {830 // ... and first operands is a literal too831 return new AstLiteral(num1.number * num2.number);832 }833 }834 if (num1.type === 'literal') {835 // optimization: first operands is a literal...836 if (num1.number === 0) {837 return new AstLiteral(0); // and it's 0838 } else if (num1.number === 1) {839 return num2; // and it's 1840 }841 }842 var min = Math.min(num1.min * num2.min, num1.min * num2.max,843 num1.max * num2.min, num1.max * num2.max);844 var max = Math.max(num1.min * num2.min, num1.min * num2.max,845 num1.max * num2.min, num1.max * num2.max);846 return new AstBinaryOperation('*', num1, num2, min, max);847 }848 function buildSubOperation(num1, num2) {849 if (num2.type === 'literal') {850 // optimization: second operands is a literal...851 if (num2.number === 0) {852 return num1; // ... and it's 0853 } else if (num1.type === 'literal') {854 // ... and first operands is a literal too855 return new AstLiteral(num1.number - num2.number);856 }857 }858 if (num2.type === 'binary' && num2.op === '-' &&859 num1.type === 'literal' && num1.number === 1 &&860 num2.arg1.type === 'literal' && num2.arg1.number === 1) {861 // optimization for case: 1 - (1 - x)862 return num2.arg2;863 }864 return new AstBinaryOperation('-', num1, num2,865 num1.min - num2.max, num1.max - num2.min);866 }867 function buildMinOperation(num1, max) {868 if (num1.min >= max) {869 // optimization: num1 min value is not less than required max870 return new AstLiteral(max); // just returning max871 } else if (num1.max <= max) {872 // optimization: num1 max value is not greater than required max873 return num1; // just returning an argument874 }875 return new AstMin(num1, max);876 }877 function PostScriptCompiler() {}878 PostScriptCompiler.prototype = {879 compile: function PostScriptCompiler_compile(code, domain, range) {880 var stack = [];881 var i, ii;882 var instructions = [];883 var inputSize = domain.length >> 1, outputSize = range.length >> 1;884 var lastRegister = 0;885 var n, j, min, max;886 var num1, num2, ast1, ast2, tmpVar, item;887 for (i = 0; i < inputSize; i++) {888 stack.push(new AstArgument(i, domain[i * 2], domain[i * 2 + 1]));889 }890 for (i = 0, ii = code.length; i < ii; i++) {891 item = code[i];892 if (typeof item === 'number') {893 stack.push(new AstLiteral(item));894 continue;895 }896 switch (item) {897 case 'add':898 if (stack.length < 2) {899 return null;900 }901 num2 = stack.pop();902 num1 = stack.pop();903 stack.push(buildAddOperation(num1, num2));904 break;905 case 'cvr':906 if (stack.length < 1) {907 return null;908 }909 break;910 case 'mul':911 if (stack.length < 2) {912 return null;913 }914 num2 = stack.pop();915 num1 = stack.pop();916 stack.push(buildMulOperation(num1, num2));917 break;918 case 'sub':919 if (stack.length < 2) {920 return null;921 }922 num2 = stack.pop();923 num1 = stack.pop();924 stack.push(buildSubOperation(num1, num2));925 break;926 case 'exch':927 if (stack.length < 2) {928 return null;929 }930 ast1 = stack.pop(); ast2 = stack.pop();931 stack.push(ast1, ast2);932 break;933 case 'pop':934 if (stack.length < 1) {935 return null;936 }937 stack.pop();938 break;939 case 'index':940 if (stack.length < 1) {941 return null;942 }943 num1 = stack.pop();944 if (num1.type !== 'literal') {945 return null;946 }947 n = num1.number;948 if (n < 0 || (n|0) !== n || stack.length < n) {949 return null;950 }951 ast1 = stack[stack.length - n - 1];952 if (ast1.type === 'literal' || ast1.type === 'var') {953 stack.push(ast1);954 break;955 }956 tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max);957 stack[stack.length - n - 1] = tmpVar;958 stack.push(tmpVar);959 instructions.push(new AstVariableDefinition(tmpVar, ast1));960 break;961 case 'dup':962 if (stack.length < 1) {963 return null;964 }965 if (typeof code[i + 1] === 'number' && code[i + 2] === 'gt' &&966 code[i + 3] === i + 7 && code[i + 4] === 'jz' &&967 code[i + 5] === 'pop' && code[i + 6] === code[i + 1]) {968 // special case of the commands sequence for the min operation969 num1 = stack.pop();970 stack.push(buildMinOperation(num1, code[i + 1]));971 i += 6;972 break;973 }974 ast1 = stack[stack.length - 1];975 if (ast1.type === 'literal' || ast1.type === 'var') {976 // we don't have to save into intermediate variable a literal or977 // variable.978 stack.push(ast1);979 break;980 }981 tmpVar = new AstVariable(lastRegister++, ast1.min, ast1.max);982 stack[stack.length - 1] = tmpVar;983 stack.push(tmpVar);984 instructions.push(new AstVariableDefinition(tmpVar, ast1));985 break;986 case 'roll':987 if (stack.length < 2) {988 return null;989 }990 num2 = stack.pop();991 num1 = stack.pop();992 if (num2.type !== 'literal' || num1.type !== 'literal') {993 // both roll operands must be numbers994 return null;995 }996 j = num2.number;997 n = num1.number;998 if (n <= 0 || (n|0) !== n || (j|0) !== j || stack.length < n) {999 // ... and integers1000 return null;1001 }1002 j = ((j % n) + n) % n;1003 if (j === 0) {1004 break; // just skipping -- there are nothing to rotate1005 }1006 Array.prototype.push.apply(stack,1007 stack.splice(stack.length - n, n - j));1008 break;1009 default:1010 return null; // unsupported operator1011 }1012 }1013 if (stack.length !== outputSize) {1014 return null;1015 }1016 var result = [];1017 instructions.forEach(function (instruction) {1018 var statementBuilder = new ExpressionBuilderVisitor();1019 instruction.visit(statementBuilder);1020 result.push(statementBuilder.toString());1021 });1022 stack.forEach(function (expr, i) {1023 var statementBuilder = new ExpressionBuilderVisitor();1024 expr.visit(statementBuilder);1025 var min = range[i * 2], max = range[i * 2 + 1];1026 var out = [statementBuilder.toString()];1027 if (min > expr.min) {1028 out.unshift('Math.max(', min, ', ');1029 out.push(')');1030 }1031 if (max < expr.max) {1032 out.unshift('Math.min(', max, ', ');1033 out.push(')');1034 }1035 out.unshift('dest[destOffset + ', i, '] = ');1036 out.push(';');1037 result.push(out.join(''));...
Using AI Code Generation
1var wptools = require('wptools');2var fs = require('fs');3var query = wptools.page('Albert_Einstein')4 .lang('en')5 .format('json')6 .get();7query.then(function(data) {8 fs.writeFile('test.json', JSON.stringify(data, null, 2), function(err) {9 if (err) throw err;10 console.log('It\'s saved!');11 });12});13query.catch(function(err) {14 console.log(err);15});16var wptools = require('wptools');17var fs = require('fs');18var query = wptools.page('Albert_Einstein')19 .lang('en')20 .format('json')21 .get();22query.then(function(data) {23 fs.writeFile('test2.json', JSON.stringify(data, null, 2), function(err) {24 if (err) throw err;25 console.log('It\'s saved!');26 });27});28query.catch(function(err) {29 console.log(err);30});31var wptools = require('wptools');32var fs = require('fs');33var query = wptools.page('Albert_Einstein')34 .lang('en')35 .format('json')36 .get();37query.then(function(data) {38 fs.writeFile('test3.json', JSON.stringify(data, null, 2), function(err) {39 if (err) throw err;40 console.log('It\'s saved!');41 });42});43query.catch(function(err) {44 console.log(err);45});46var wptools = require('wptools');47var fs = require('fs');48var query = wptools.page('Albert_Einstein')49 .lang('en')50 .format('json')51 .get();52query.then(function(data) {53 fs.writeFile('test4.json', JSON.stringify(data, null, 2), function(err) {54 if (err) throw err;55 console.log('It\'s saved!');56 });57});58query.catch(function(err) {59 console.log(err);60});
Using AI Code Generation
1var wptools = require('wptools');2var page = wptools.page('Albert Einstein');3page.get(function(err, info) {4 var expression = page.getExpressionBuilderVisitor().visit(info);5 console.log(expression);6});7The ExpressionBuilderVisitor is available as a standalone library in the `dist` folder. The library is available as a UMD module and can be used with AMD, CommonJS and as a global variable. The library depends on the [wikibase-sdk](
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