Code coverage report for lib/parser/cssSymbolScope.js

# all files / lib/parser/ cssSymbolScope.js

91.16% Statements 227/249
77.7% Branches 108/139
92.86% Functions 39/42
92.56% Lines 224/242

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     var __extends = (this && this.__extends) || (function () {
        var extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return function (d, b) {
            extendStatics(d, b);
            function __() { this.constructor = d; }
            d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
        };
    })();
    (function (factory) {
        Eif (typeof module === "object" && typeof module.exports === "object") {
            var v = factory(require, exports);
            Iif (v !== undefined) module.exports = v;
        }
        else if (typeof define === "function" && define.amd) {
            define(["require", "exports", "./cssNodes", "../utils/arrays"], factory);
        }
    })(function (require, exports) {
        /*---------------------------------------------------------------------------------------------
         *  Copyright (c) Microsoft Corporation. All rights reserved.
         *  Licensed under the MIT License. See License.txt in the project root for license information.
         *--------------------------------------------------------------------------------------------*/
        'use strict';
        Object.defineProperty(exports, "__esModule", { value: true });
        var nodes = require("./cssNodes");
        var arrays_1 = require("../utils/arrays");
        var Scope = (function () {
            function Scope(offset, length) {
                this.offset = offset;
                this.length = length;
                this.symbols = [];
                this.parent = null;
                this.children = [];
            }
            Scope.prototype.addChild = function (scope) {
                this.children.push(scope);
                scope.setParent(this);
            };
            Scope.prototype.setParent = function (scope) {
                this.parent = scope;
            };
            Scope.prototype.findScope = function (offset, length) {
                if (length === void 0) { length = 0; }
                if (this.offset <= offset && this.offset + this.length > offset + length || this.offset === offset && this.length === length) {
                    return this.findInScope(offset, length);
                }
                return null;
            };
            Scope.prototype.findInScope = function (offset, length) {
                Iif (length === void 0) { length = 0; }
                // find the first scope child that has an offset larger than offset + length
                var end = offset + length;
                var idx = arrays_1.findFirst(this.children, function (s) { return s.offset > end; });
                if (idx === 0) {
                    // all scopes have offsets larger than our end
                    return this;
                }
                var res = this.children[idx - 1];
                if (res.offset <= offset && res.offset + res.length >= offset + length) {
                    return res.findInScope(offset, length);
                }
                return this;
            };
            Scope.prototype.addSymbol = function (symbol) {
                this.symbols.push(symbol);
            };
            Scope.prototype.getSymbol = function (name, type) {
                for (var index = 0; index < this.symbols.length; index++) {
                    var symbol = this.symbols[index];
                    if (symbol.name === name && symbol.type === type) {
                        return symbol;
                    }
                }
                return null;
            };
            Scope.prototype.getSymbols = function () {
                return this.symbols;
            };
            return Scope;
        }());
        exports.Scope = Scope;
        var GlobalScope = (function (_super) {
            __extends(GlobalScope, _super);
            function GlobalScope() {
                return _super.call(this, 0, Number.MAX_VALUE) || this;
            }
            return GlobalScope;
        }(Scope));
        exports.GlobalScope = GlobalScope;
        var Symbol = (function () {
            function Symbol(name, value, node, type) {
                this.name = name;
                this.value = value;
                this.node = node;
                this.type = type;
            }
            return Symbol;
        }());
        exports.Symbol = Symbol;
        var ScopeBuilder = (function () {
            function ScopeBuilder(scope) {
                this.scope = scope;
            }
            ScopeBuilder.prototype.addSymbol = function (node, name, value, type) {
                Eif (node.offset !== -1) {
                    var current = this.scope.findScope(node.offset, node.length);
                    current.addSymbol(new Symbol(name, value, node, type));
                }
            };
            ScopeBuilder.prototype.addScope = function (node) {
                Eif (node.offset !== -1) {
                    var current = this.scope.findScope(node.offset, node.length);
                    if (current.offset !== node.offset || current.length !== node.length) {
                        var newScope = new Scope(node.offset, node.length);
                        current.addChild(newScope);
                        return newScope;
                    }
                    return current;
                }
                return null;
            };
            ScopeBuilder.prototype.addSymbolToChildScope = function (scopeNode, node, name, value, type) {
                Eif (scopeNode && scopeNode.offset !== -1) {
                    var current = this.addScope(scopeNode); // create the scope or gets the existing one
                    current.addSymbol(new Symbol(name, value, node, type));
                }
            };
            ScopeBuilder.prototype.visitNode = function (node) {
                switch (node.type) {
                    case nodes.NodeType.Keyframe:
                        this.addSymbol(node, node.getName(), null, nodes.ReferenceType.Keyframe);
                        return true;
                    case nodes.NodeType.CustomPropertyDeclaration:
                        return this.visitCustomPropertyDeclarationNode(node);
                    case nodes.NodeType.VariableDeclaration:
                        return this.visitVariableDeclarationNode(node);
                    case nodes.NodeType.Ruleset:
                        return this.visitRuleSet(node);
                    case nodes.NodeType.MixinDeclaration:
                        this.addSymbol(node, node.getName(), null, nodes.ReferenceType.Mixin);
                        return true;
                    case nodes.NodeType.FunctionDeclaration:
                        this.addSymbol(node, node.getName(), null, nodes.ReferenceType.Function);
                        return true;
                    case nodes.NodeType.FunctionParameter: {
                        return this.visitFunctionParameterNode(node);
                    }
                    case nodes.NodeType.Declarations:
                        this.addScope(node);
                        return true;
                    case nodes.NodeType.For:
                        var forNode = node;
                        var scopeNode = forNode.getDeclarations();
                        Eif (scopeNode) {
                            this.addSymbolToChildScope(scopeNode, forNode.variable, forNode.variable.getName(), null, nodes.ReferenceType.Variable);
                        }
                        return true;
                    case nodes.NodeType.Each: {
                        var eachNode = node;
                        var scopeNode_1 = eachNode.getDeclarations();
                        Eif (scopeNode_1) {
                            var variables = eachNode.getVariables().getChildren();
                            for (var _i = 0, variables_1 = variables; _i < variables_1.length; _i++) {
                                var variable = variables_1[_i];
                                this.addSymbolToChildScope(scopeNode_1, variable, variable.getName(), null, nodes.ReferenceType.Variable);
                            }
                        }
                        return true;
                    }
                }
                return true;
            };
            ScopeBuilder.prototype.visitRuleSet = function (node) {
                var current = this.scope.findScope(node.offset, node.length);
                node.getSelectors().getChildren().forEach(function (child) {
                    Eif (child instanceof nodes.Selector) {
                        if (child.getChildren().length === 1) {
                            current.addSymbol(new Symbol(child.getChild(0).getText(), null, child, nodes.ReferenceType.Rule));
                        }
                    }
                });
                return true;
            };
            ScopeBuilder.prototype.visitVariableDeclarationNode = function (node) {
                var value = node.getValue() ? node.getValue().getText() : null;
                this.addSymbol(node, node.getName(), value, nodes.ReferenceType.Variable);
                return true;
            };
            ScopeBuilder.prototype.visitFunctionParameterNode = function (node) {
                // parameters are part of the body scope
                var scopeNode = node.getParent().getDeclarations();
                Eif (scopeNode) {
                    var valueNode = node.getDefaultValue();
                    var value = valueNode ? valueNode.getText() : null;
                    this.addSymbolToChildScope(scopeNode, node, node.getName(), value, nodes.ReferenceType.Variable);
                }
                return true;
            };
            ScopeBuilder.prototype.visitCustomPropertyDeclarationNode = function (node) {
                var value = node.getValue() ? node.getValue().getText() : '';
                this.addCSSVariable(node.getProperty(), node.getProperty().getName(), value, nodes.ReferenceType.Variable);
                return true;
            };
            ScopeBuilder.prototype.addCSSVariable = function (node, name, value, type) {
                Eif (node.offset !== -1) {
                    var globalScope = this.getGlobalScope(node, name, type);
                    globalScope.addSymbol(new Symbol(name, value, node, type));
                }
            };
            ScopeBuilder.prototype.getGlobalScope = function (node, name, type) {
                var current = this.scope.findScope(node.offset, node.length);
                while (current.parent !== null) {
                    current = current.parent;
                }
                return current;
            };
            return ScopeBuilder;
        }());
        exports.ScopeBuilder = ScopeBuilder;
        var Symbols = (function () {
            function Symbols(node) {
                this.global = new GlobalScope();
                node.accept(new ScopeBuilder(this.global));
            }
            Symbols.prototype.findSymbolsAtOffset = function (offset, referenceType) {
                var scope = this.global.findScope(offset, 0);
                var result = [];
                var names = {};
                while (scope) {
                    var symbols = scope.getSymbols();
                    for (var i = 0; i < symbols.length; i++) {
                        var symbol = symbols[i];
                        if (symbol.type === referenceType && !names[symbol.name]) {
                            result.push(symbol);
                            names[symbol.name] = true;
                        }
                    }
                    scope = scope.parent;
                }
                return result;
            };
            Symbols.prototype.internalFindSymbol = function (node, referenceTypes) {
                var scopeNode = node;
                if (node.parent instanceof nodes.FunctionParameter && node.parent.getParent() instanceof nodes.BodyDeclaration) {
                    scopeNode = node.parent.getParent().getDeclarations();
                }
                if (node.parent instanceof nodes.FunctionArgument && node.parent.getParent() instanceof nodes.Function) {
                    var funcId = node.parent.getParent().getIdentifier();
                    Eif (funcId) {
                        var functionSymbol = this.internalFindSymbol(funcId, [nodes.ReferenceType.Function]);
                        Eif (functionSymbol) {
                            scopeNode = functionSymbol.node.getDeclarations();
                        }
                    }
                }
                Iif (!scopeNode) {
                    return null;
                }
                var name = node.getText();
                var scope = this.global.findScope(scopeNode.offset, scopeNode.length);
                while (scope) {
                    for (var index = 0; index < referenceTypes.length; index++) {
                        var type = referenceTypes[index];
                        var symbol = scope.getSymbol(name, type);
                        if (symbol) {
                            return symbol;
                        }
                    }
                    scope = scope.parent;
                }
                return null;
            };
            Symbols.prototype.evaluateReferenceTypes = function (node) {
                if (node instanceof nodes.Identifier) {
                    var referenceTypes = node.referenceTypes;
                    if (referenceTypes) {
                        return referenceTypes;
                    }
                    else {
                        if (node.isCustomProperty) {
                            return [nodes.ReferenceType.Variable];
                        }
                        // are a reference to a keyframe?
                        var decl = nodes.getParentDeclaration(node);
                        if (decl) {
                            var propertyName = decl.getNonPrefixedPropertyName();
                            if ((propertyName === 'animation' || propertyName === 'animation-name')
                                && decl.getValue() && decl.getValue().offset === node.offset) {
                                return [nodes.ReferenceType.Keyframe];
                            }
                        }
                    }
                }
                else if (node instanceof nodes.Variable) {
                    return [nodes.ReferenceType.Variable];
                }
                var selector = node.findParent(nodes.NodeType.Selector);
                if (selector) {
                    return [nodes.ReferenceType.Rule];
                }
                var extendsRef = node.findParent(nodes.NodeType.ExtendsReference);
                if (extendsRef) {
                    return [nodes.ReferenceType.Rule];
                }
                return null;
            };
            Symbols.prototype.findSymbolFromNode = function (node) {
                Iif (!node) {
                    return null;
                }
                while (node.type === nodes.NodeType.Interpolation) {
                    node = node.getParent();
                }
                var referenceTypes = this.evaluateReferenceTypes(node);
                if (referenceTypes) {
                    return this.internalFindSymbol(node, referenceTypes);
                }
                return null;
            };
            Symbols.prototype.matchesSymbol = function (node, symbol) {
                Iif (!node) {
                    return null;
                }
                while (node.type === nodes.NodeType.Interpolation) {
                    node = node.getParent();
                }
                if (symbol.name.length !== node.length || symbol.name !== node.getText()) {
                    return false;
                }
                var referenceTypes = this.evaluateReferenceTypes(node);
                if (!referenceTypes || referenceTypes.indexOf(symbol.type) === -1) {
                    return false;
                }
                var nodeSymbol = this.internalFindSymbol(node, referenceTypes);
                return nodeSymbol === symbol;
            };
            Symbols.prototype.findSymbol = function (name, type, offset) {
                var scope = this.global.findScope(offset);
                while (scope) {
                    var symbol = scope.getSymbol(name, type);
                    if (symbol) {
                        return symbol;
                    }
                    scope = scope.parent;
                }
                return null;
            };
            return Symbols;
        }());
        exports.Symbols = Symbols;
    });
    //# sourceMappingURL=cssSymbolScope.js.map