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simplr-tslint

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A set of TSLint rules used in SimplrJS projects.

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"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); const ts = require("typescript"); const Lint = require("tslint"); const changeCase = require("change-case"); const SKIP_ORIGIN_CHECKING = "skip-origin-checking"; var Format; (function (Format) { Format["None"] = "none"; Format["CamelCase"] = "camel-case"; Format["PascalCase"] = "pascal-case"; Format["ConstantCase"] = "constant-case"; Format["SnakeCase"] = "snake-case"; })(Format || (Format = {})); var AccessModifier; (function (AccessModifier) { AccessModifier["Public"] = "public"; AccessModifier["Private"] = "private"; AccessModifier["Protected"] = "protected"; })(AccessModifier || (AccessModifier = {})); var MemberKind; (function (MemberKind) { MemberKind["Method"] = "method"; MemberKind["Property"] = "property"; })(MemberKind || (MemberKind = {})); function isRuleSettings(obj) { return obj.formatRules != null || obj.ignoreParentSuffixes != null; } var FormatHelpers; (function (FormatHelpers) { function changeFormat(format, text) { switch (format) { case Format.None: return text; case Format.CamelCase: return changeCase.camelCase(text); case Format.PascalCase: return changeCase.pascalCase(text); case Format.ConstantCase: return changeCase.constantCase(text); case Format.SnakeCase: return changeCase.snakeCase(text); } } FormatHelpers.changeFormat = changeFormat; function changeFormatWithPrefixes(format, text, allowedPrefixes = []) { if (allowedPrefixes.length === 0) { return changeFormat(format, text); } for (const allowedPrefix of allowedPrefixes) { // Find prefix from text in allowed prefixes. const prefix = text.substring(0, allowedPrefix.length); if (allowedPrefix !== prefix) { continue; } const textWithoutPrefix = text.substring(prefix.length, text.length); return allowedPrefix + changeFormat(format, textWithoutPrefix); } return changeFormat(format, text); } FormatHelpers.changeFormatWithPrefixes = changeFormatWithPrefixes; })(FormatHelpers || (FormatHelpers = {})); var TsHelpers; (function (TsHelpers) { function modifierKindExistsInModifiers(modifiers, kind) { if (modifiers != null) { return modifiers.some(x => x.kind === kind); } return false; } TsHelpers.modifierKindExistsInModifiers = modifierKindExistsInModifiers; function resolveAccessModifierFromModifiers(modifiers) { let accessModifier; if (modifiers != null) { modifiers.forEach(modifier => { switch (modifier.kind) { case ts.SyntaxKind.PublicKeyword: { accessModifier = AccessModifier.Public; return; } case ts.SyntaxKind.PrivateKeyword: { accessModifier = AccessModifier.Private; return; } case ts.SyntaxKind.ProtectedKeyword: { accessModifier = AccessModifier.Protected; return; } } }); } return accessModifier; } TsHelpers.resolveAccessModifierFromModifiers = resolveAccessModifierFromModifiers; function isDeclarationWithHeritageClauses(node) { return node.heritageClauses != null; } TsHelpers.isDeclarationWithHeritageClauses = isDeclarationWithHeritageClauses; /** * Checks all heritage list to find specific given name. If it doesn't exist, it returns false. * @param node Node with heritage list. * @param targetName Name to search for in heritage list. */ function checkMemberNameInHeritageDeclarations(typeChecker, node, targetName) { if (node == null) { return false; } if (node.heritageClauses == null) { return false; } // Go through Extends and Implements for (const heritage of node.heritageClauses) { if (heritage.types == null) { continue; } // Go through types on that heritage. for (const typeNode of heritage.types) { const type = typeChecker.getTypeFromTypeNode(typeNode); const targetSymbol = type.getSymbol(); if (targetSymbol != null && targetSymbol.declarations != null) { // Target Symbol declarations. for (const declaration of targetSymbol.declarations) { // Interface and Classes declarations only. if (ts.isInterfaceDeclaration(declaration) || ts.isClassDeclaration(declaration)) { for (const member of declaration.members) { // Check members name. if (member.name != null && member.name.getText() === targetName) { return true; } } // Go deeper to checker their heritage lists. return checkMemberNameInHeritageDeclarations(typeChecker, declaration, targetName); } } } } } return false; } TsHelpers.checkMemberNameInHeritageDeclarations = checkMemberNameInHeritageDeclarations; })(TsHelpers || (TsHelpers = {})); class Rule extends Lint.Rules.TypedRule { static failureMessageFactory(name, neededCase) { return `Declaration "${name}" format is not correct (${neededCase}).`; } parseOptions(options) { const defaultFormat = options.ruleArguments.find(x => Object.values(Format).find(y => y === x) != null); const skipOriginChecking = options.ruleArguments.findIndex(x => x === SKIP_ORIGIN_CHECKING) !== -1; const ruleSettings = options.ruleArguments.find(x => isRuleSettings(x)) || {}; return { defaultFormat: defaultFormat || Format.CamelCase, skipOriginChecking: skipOriginChecking, rules: ruleSettings.formatRules || [], ignoreParentSuffixes: ruleSettings.ignoreParentSuffixes || [], rawOptions: options }; } applyWithProgram(sourceFile, program) { const parsedOptions = this.parseOptions(this.getOptions()); return this.applyWithWalker(new ClassMembersWalker(sourceFile, parsedOptions, program)); } } exports.Rule = Rule; // The walker takes care of all the work. class ClassMembersWalker extends Lint.ProgramAwareRuleWalker { constructor(sourceFile, ruleOptions, program) { super(sourceFile, ruleOptions.rawOptions, program); this.ruleOptions = ruleOptions; } //#region Helping functions getFormatRule(rule) { const rules = this.ruleOptions.rules; const index = rules.findIndex(x => { for (const key in rule) { if ((rule.hasOwnProperty(key) && rule[key] === x[key]) || rule[key] == null) { return true; } } return false; }); return rules[index]; } checkNameNode(nameNode, format = Format.None, allowedPrefixes = []) { const name = nameNode.getText(); const casedName = FormatHelpers.changeFormatWithPrefixes(format, name, allowedPrefixes); if (casedName !== name) { // create a fixer for this failure const fix = new Lint.Replacement(nameNode.getStart(), nameNode.getWidth(), casedName); // create a failure at the current position this.addFailure(this.createFailure(nameNode.getStart(), nameNode.getWidth(), Rule.failureMessageFactory(name, format), fix)); } } //#endregion visitMethodSignature(node) { this.checkDeclarationNameFormat(node, node.name, MemberKind.Method); super.visitMethodSignature(node); } visitMethodDeclaration(node) { this.checkDeclarationNameFormat(node, node.name, MemberKind.Method); super.visitMethodDeclaration(node); } visitPropertySignature(node) { this.checkDeclarationNameFormat(node, node.name, MemberKind.Property); super.visitPropertySignature(node); } visitPropertyDeclaration(node) { this.checkDeclarationNameFormat(node, node.name, MemberKind.Property); super.visitPropertyDeclaration(node); } visitGetAccessor(node) { this.checkDeclarationNameFormat(node, node.name, MemberKind.Property); super.visitGetAccessor(node); } visitSetAccessor(node) { this.checkDeclarationNameFormat(node, node.name, MemberKind.Property); super.visitSetAccessor(node); } visitConstructorDeclaration(node) { for (const parameter of node.parameters) { const accessModifier = TsHelpers.resolveAccessModifierFromModifiers(parameter.modifiers); if (accessModifier === AccessModifier.Private) { this.checkDeclarationNameFormat(parameter, parameter.name, MemberKind.Property); } } super.visitConstructorDeclaration(node); } checkDeclarationNameFormat(node, name, kind) { // Check if parent does not exist in ignore list. const parent = node.parent; if (parent.name != null) { const parentName = parent.name.getText(); const excluded = this.ruleOptions.ignoreParentSuffixes.findIndex(x => parentName.endsWith(x)) !== -1; if (excluded) { return; } } const searchOption = { kind: kind, modifier: TsHelpers.resolveAccessModifierFromModifiers(node.modifiers) || AccessModifier.Public, isStatic: TsHelpers.modifierKindExistsInModifiers(node.modifiers, ts.SyntaxKind.StaticKeyword) }; // Resolve format rule const formatRule = this.getFormatRule(searchOption); if (formatRule == null && this.ruleOptions.defaultFormat == null) { return; } const format = formatRule != null ? formatRule.format : this.ruleOptions.defaultFormat; const allowedPrefixes = formatRule != null ? formatRule.allowedPrefixes : undefined; // Check if name is existing from heritage. if (this.ruleOptions.skipOriginChecking || (parent != null && !TsHelpers.checkMemberNameInHeritageDeclarations(this.getProgram().getTypeChecker(), parent, name.getText()))) { this.checkNameNode(name, format, allowedPrefixes); } } } //# 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* as ts from \"typescript\";\r\nimport * as Lint from \"tslint\";\r\nimport * as changeCase from \"change-case\";\r\n\r\nconst SKIP_ORIGIN_CHECKING = \"skip-origin-checking\";\r\n\r\nenum Format {\r\n    None = \"none\",\r\n    CamelCase = \"camel-case\",\r\n    PascalCase = \"pascal-case\",\r\n    ConstantCase = \"constant-case\",\r\n    SnakeCase = \"snake-case\"\r\n}\r\n\r\nenum AccessModifier {\r\n    Public = \"public\",\r\n    Private = \"private\",\r\n    Protected = \"protected\"\r\n}\r\n\r\nenum MemberKind {\r\n    Method = \"method\",\r\n    Property = \"property\"\r\n}\r\n\r\ninterface FormatRule {\r\n    kind: MemberKind;\r\n    /**\r\n     * Default \"public\"\r\n     */\r\n    modifier?: AccessModifier;\r\n    /**\r\n     * Default \"none\"\r\n     */\r\n    format?: Format;\r\n    isStatic?: boolean;\r\n    allowedPrefixes?: string[];\r\n}\r\n\r\nfunction isRuleSettings(obj: Partial<RuleSettings>): obj is RuleSettings {\r\n    return obj.formatRules != null || obj.ignoreParentSuffixes != null;\r\n}\r\n\r\ninterface RuleSettings {\r\n    formatRules?: FormatRule[];\r\n    ignoreParentSuffixes?: string[];\r\n}\r\n\r\ninterface ResolvedRuleOptions {\r\n    skipOriginChecking: boolean;\r\n    defaultFormat?: Format;\r\n    rules: FormatRule[];\r\n    ignoreParentSuffixes: string[];\r\n    rawOptions: Lint.IOptions;\r\n}\r\n\r\nnamespace FormatHelpers {\r\n    export function changeFormat(format: Format, text: string): string {\r\n        switch (format) {\r\n            case Format.None:\r\n                return text;\r\n            case Format.CamelCase:\r\n                return changeCase.camelCase(text);\r\n            case Format.PascalCase:\r\n                return changeCase.pascalCase(text);\r\n            case Format.ConstantCase:\r\n                return changeCase.constantCase(text);\r\n            case Format.SnakeCase:\r\n                return changeCase.snakeCase(text);\r\n        }\r\n    }\r\n\r\n    export function changeFormatWithPrefixes(format: Format, text: string, allowedPrefixes: string[] = []): string {\r\n        if (allowedPrefixes.length === 0) {\r\n            return changeFormat(format, text);\r\n        }\r\n\r\n        for (const allowedPrefix of allowedPrefixes) {\r\n            // Find prefix from text in allowed prefixes.\r\n            const prefix: string = text.substring(0, allowedPrefix.length);\r\n            if (allowedPrefix !== prefix) {\r\n                continue;\r\n            }\r\n            const textWithoutPrefix: string = text.substring(prefix.length, text.length);\r\n\r\n            return allowedPrefix + changeFormat(format, textWithoutPrefix);\r\n        }\r\n\r\n        return changeFormat(format, text);\r\n    }\r\n}\r\n\r\nnamespace TsHelpers {\r\n    export function modifierKindExistsInModifiers(modifiers: ts.NodeArray<ts.Modifier> | undefined, kind: ts.SyntaxKind): boolean {\r\n        if (modifiers != null) {\r\n            return modifiers.some(x => x.kind === kind);\r\n        }\r\n\r\n        return false;\r\n    }\r\n\r\n    export function resolveAccessModifierFromModifiers(modifiers?: ts.NodeArray<ts.Modifier>): AccessModifier | undefined {\r\n        let accessModifier: AccessModifier | undefined;\r\n\r\n        if (modifiers != null) {\r\n            modifiers.forEach(modifier => {\r\n                switch (modifier.kind) {\r\n                    case ts.SyntaxKind.PublicKeyword: {\r\n                        accessModifier = AccessModifier.Public;\r\n                        return;\r\n                    }\r\n                    case ts.SyntaxKind.PrivateKeyword: {\r\n                        accessModifier = AccessModifier.Private;\r\n                        return;\r\n                    }\r\n                    case ts.SyntaxKind.ProtectedKeyword: {\r\n                        accessModifier = AccessModifier.Protected;\r\n                        return;\r\n                    }\r\n                }\r\n            });\r\n        }\r\n\r\n        return accessModifier;\r\n    }\r\n\r\n    export type ClassOrInterfaceDeclaration = ts.ClassDeclaration | ts.InterfaceDeclaration;\r\n\r\n    export function isDeclarationWithHeritageClauses(node: ts.Node): node is ClassOrInterfaceDeclaration {\r\n        return (node as ClassOrInterfaceDeclaration).heritageClauses != null;\r\n    }\r\n\r\n    /**\r\n     * Checks all heritage list to find specific given name. If it doesn't exist, it returns false.\r\n     * @param node Node with heritage list.\r\n     * @param targetName Name to search for in heritage list.\r\n     */\r\n    export function checkMemberNameInHeritageDeclarations(\r\n        typeChecker: ts.TypeChecker,\r\n        node: TsHelpers.ClassOrInterfaceDeclaration | undefined,\r\n        targetName: string\r\n    ): boolean {\r\n        if (node == null) {\r\n            return false;\r\n        }\r\n\r\n        if (node.heritageClauses == null) {\r\n            return false;\r\n        }\r\n\r\n        // Go through Extends and Implements\r\n        for (const heritage of node.heritageClauses) {\r\n            if (heritage.types == null) {\r\n                continue;\r\n            }\r\n\r\n            // Go through types on that heritage.\r\n            for (const typeNode of heritage.types) {\r\n                const type = typeChecker.getTypeFromTypeNode(typeNode);\r\n                const targetSymbol = type.getSymbol();\r\n\r\n                if (targetSymbol != null && targetSymbol.declarations != null) {\r\n                    // Target Symbol declarations.\r\n                    for (const declaration of targetSymbol.declarations) {\r\n                        // Interface and Classes declarations only.\r\n                        if (ts.isInterfaceDeclaration(declaration) || ts.isClassDeclaration(declaration)) {\r\n                            for (const member of declaration.members) {\r\n                                // Check members name.\r\n                                if (member.name != null && member.name.getText() === targetName) {\r\n                                    return true;\r\n                                }\r\n                            }\r\n\r\n                            // Go deeper to checker their heritage lists.\r\n                            return checkMemberNameInHeritageDeclarations(typeChecker, declaration, targetName);\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n        }\r\n\r\n        return false;\r\n    }\r\n}\r\n\r\nexport class Rule extends Lint.Rules.TypedRule {\r\n    public static failureMessageFactory(name: string, neededCase: string): string {\r\n        return `Declaration \"${name}\" format is not correct (${neededCase}).`;\r\n    }\r\n\r\n    private parseOptions(options: Lint.IOptions): ResolvedRuleOptions {\r\n        const defaultFormat: Format = options.ruleArguments.find(x => Object.values(Format).find(y => y === x) != null);\r\n        const skipOriginChecking: boolean = options.ruleArguments.findIndex(x => x === SKIP_ORIGIN_CHECKING) !== -1;\r\n        const ruleSettings: RuleSettings = options.ruleArguments.find(x => isRuleSettings(x)) || {};\r\n\r\n        return {\r\n            defaultFormat: defaultFormat || Format.CamelCase,\r\n            skipOriginChecking: skipOriginChecking,\r\n            rules: ruleSettings.formatRules || [],\r\n            ignoreParentSuffixes: ruleSettings.ignoreParentSuffixes || [],\r\n            rawOptions: options\r\n        };\r\n    }\r\n\r\n    public applyWithProgram(sourceFile: ts.SourceFile, program: ts.Program): Lint.RuleFailure[] {\r\n        const parsedOptions = this.parseOptions(this.getOptions());\r\n        return this.applyWithWalker(new ClassMembersWalker(sourceFile, parsedOptions, program));\r\n    }\r\n}\r\n\r\n// tslint:disable-next-line:no-any\r\ntype Dictionary<TValue = any> = { [key: string]: TValue };\r\n\r\n// The walker takes care of all the work.\r\nclass ClassMembersWalker extends Lint.ProgramAwareRuleWalker {\r\n    constructor(sourceFile: ts.SourceFile, private ruleOptions: ResolvedRuleOptions, program: ts.Program) {\r\n        super(sourceFile, ruleOptions.rawOptions, program);\r\n    }\r\n\r\n    //#region Helping functions\r\n    private getFormatRule(rule: Partial<FormatRule> & Dictionary): FormatRule | undefined {\r\n        const rules: Array<FormatRule & Dictionary> = this.ruleOptions.rules;\r\n\r\n        const index = rules.findIndex(x => {\r\n            for (const key in rule) {\r\n                if ((rule.hasOwnProperty(key) && rule[key] === x[key]) || rule[key] == null) {\r\n                    return true;\r\n                }\r\n            }\r\n            return false;\r\n        });\r\n\r\n        return rules[index];\r\n    }\r\n\r\n    private checkNameNode(nameNode: ts.Node, format: Format = Format.None, allowedPrefixes: string[] = []): void {\r\n        const name = nameNode.getText();\r\n        const casedName = FormatHelpers.changeFormatWithPrefixes(format, name, allowedPrefixes);\r\n\r\n        if (casedName !== name) {\r\n            // create a fixer for this failure\r\n            const fix = new Lint.Replacement(nameNode.getStart(), nameNode.getWidth(), casedName);\r\n\r\n            // create a failure at the current position\r\n            this.addFailure(this.createFailure(nameNode.getStart(), nameNode.getWidth(), Rule.failureMessageFactory(name, format), fix));\r\n        }\r\n    }\r\n\r\n    //#endregion\r\n\r\n    public visitMethodSignature(node: ts.MethodSignature): void {\r\n        this.checkDeclarationNameFormat(node, node.name, MemberKind.Method);\r\n        super.visitMethodSignature(node);\r\n    }\r\n\r\n    public visitMethodDeclaration(node: ts.MethodDeclaration): void {\r\n        this.checkDeclarationNameFormat(node, node.name, MemberKind.Method);\r\n        super.visitMethodDeclaration(node);\r\n    }\r\n\r\n    public visitPropertySignature(node: ts.PropertySignature): void {\r\n        this.checkDeclarationNameFormat(node, node.name, MemberKind.Property);\r\n        super.visitPropertySignature(node);\r\n    }\r\n\r\n    public visitPropertyDeclaration(node: ts.PropertyDeclaration): void {\r\n        this.checkDeclarationNameFormat(node, node.name, MemberKind.Property);\r\n        super.visitPropertyDeclaration(node);\r\n    }\r\n\r\n    public visitGetAccessor(node: ts.GetAccessorDeclaration): void {\r\n        this.checkDeclarationNameFormat(node, node.name, MemberKind.Property);\r\n        super.visitGetAccessor(node);\r\n    }\r\n\r\n    public visitSetAccessor(node: ts.SetAccessorDeclaration): void {\r\n        this.checkDeclarationNameFormat(node, node.name, MemberKind.Property);\r\n        super.visitSetAccessor(node);\r\n    }\r\n\r\n    public visitConstructorDeclaration(node: ts.ConstructorDeclaration): void {\r\n        for (const parameter of node.parameters) {\r\n            const accessModifier = TsHelpers.resolveAccessModifierFromModifiers(parameter.modifiers);\r\n            if (accessModifier === AccessModifier.Private) {\r\n                this.checkDeclarationNameFormat(parameter, parameter.name, MemberKind.Property);\r\n            }\r\n        }\r\n\r\n        super.visitConstructorDeclaration(node);\r\n    }\r\n\r\n    private checkDeclarationNameFormat(node: ts.Declaration, name: ts.Node, kind: MemberKind): void {\r\n        // Check if parent does not exist in ignore list.\r\n        const parent = node.parent as TsHelpers.ClassOrInterfaceDeclaration;\r\n        if (parent.name != null) {\r\n            const parentName = parent.name.getText();\r\n            const excluded = this.ruleOptions.ignoreParentSuffixes.findIndex(x => parentName.endsWith(x)) !== -1;\r\n\r\n            if (excluded) {\r\n                return;\r\n            }\r\n        }\r\n\r\n        const searchOption: Partial<FormatRule> = {\r\n            kind: kind,\r\n            modifier: TsHelpers.resolveAccessModifierFromModifiers(node.modifiers) || AccessModifier.Public,\r\n            isStatic: TsHelpers.modifierKindExistsInModifiers(node.modifiers, ts.SyntaxKind.StaticKeyword)\r\n        };\r\n\r\n        // Resolve format rule\r\n        const formatRule = this.getFormatRule(searchOption);\r\n        if (formatRule == null && this.ruleOptions.defaultFormat == null) {\r\n            return;\r\n        }\r\n\r\n        const format: Format | undefined = formatRule != null ? formatRule.format : this.ruleOptions.defaultFormat;\r\n        const allowedPrefixes: string[] | undefined = formatRule != null ? formatRule.allowedPrefixes : undefined;\r\n\r\n        // Check if name is existing from heritage.\r\n        if (\r\n            this.ruleOptions.skipOriginChecking ||\r\n            (parent != null && !TsHelpers.checkMemberNameInHeritageDeclarations(this.getProgram().getTypeChecker(), parent, name.getText()))\r\n        ) {\r\n            this.checkNameNode(name, format, allowedPrefixes);\r\n        }\r\n    }\r\n}\r\n"]}