Chore: reduce size for webpack

Author: mysticatea

src/common/location-calculator.ts

@@ -3,7 +3,7 @@
  * @copyright 2017 Toru Nagashima. All rights reserved.
  * See LICENSE file in root directory for full license.
  */
-import * as lodash from "lodash"
+import sortedLastIndex from "lodash/sortedLastIndex"
 import { HasLocation, Location, ParseError } from "../ast"
 
 /**
@@ -36,7 +36,7 @@ export class LocationCalculator {
         this.baseOffset = baseOffset || 0
         this.baseIndexOfGap = (this.baseOffset === 0)
             ? 0
-            : lodash.sortedLastIndex(gapOffsets, this.baseOffset)
+            : sortedLastIndex(gapOffsets, this.baseOffset)
     }
 
     /**
@@ -58,7 +58,7 @@ export class LocationCalculator {
      * @returns The location of the offset.
      */
     private _getLocation(offset: number): Location {
-        const line = lodash.sortedLastIndex(this.ltOffsets, offset) + 1
+        const line = sortedLastIndex(this.ltOffsets, offset) + 1
         const column = offset - (line === 1 ? 0 : this.ltOffsets[line - 2])
         return { line, column }
     }
@@ -69,7 +69,7 @@ export class LocationCalculator {
      */
     private _getGap(index: number): number {
         const offsets = this.gapOffsets
-        let g0 = lodash.sortedLastIndex(offsets, index + this.baseOffset)
+        let g0 = sortedLastIndex(offsets, index + this.baseOffset)
         let pos = index + this.baseOffset + g0 - this.baseIndexOfGap
 
         while (g0 < offsets.length && offsets[g0] <= pos) {

src/external/node-event-generator.ts

@@ -3,7 +3,9 @@
  */
 import EventEmitter from "events"
 import * as esquery from "esquery"
-import * as lodash from "lodash"
+import union from "lodash/union"
+import intersection from "lodash/intersection"
+import memoize from "lodash/memoize"
 import {Node} from "../ast"
 
 interface Selector {
@@ -29,7 +31,7 @@ function getPossibleTypes(parsedSelector: esquery.Selector): string[] | null {
             const typesForComponents = parsedSelector.selectors.map(getPossibleTypes)
 
             if (typesForComponents.every(Boolean)) {
-                return lodash.union.apply(null, typesForComponents)
+                return union.apply(null, typesForComponents)
             }
             return null
         }
@@ -46,7 +48,7 @@ function getPossibleTypes(parsedSelector: esquery.Selector): string[] | null {
              * If at least one of the components could only match a particular type, the compound could only match
              * the intersection of those types.
              */
-            return lodash.intersection.apply(null, typesForComponents)
+            return intersection.apply(null, typesForComponents)
         }
 
         case "child":
@@ -154,7 +156,7 @@ function tryParseSelector(rawSelector: string): esquery.Selector {
  * @param {string} rawSelector A raw AST selector
  * @returns {ASTSelector} A selector descriptor
  */
-const parseSelector = lodash.memoize<(rawSelector: string) => Selector>(rawSelector => {
+const parseSelector = memoize<(rawSelector: string) => Selector>(rawSelector => {
     const parsedSelector = tryParseSelector(rawSelector)
 
     return {

src/external/token-store/utils.ts

@@ -2,7 +2,7 @@
  * @fileoverview Define utilify functions for token store.
  * @author Toru Nagashima
  */
-import * as lodash from "lodash"
+import sortedIndexBy from "lodash/sortedIndexBy"
 import {HasLocation} from "../../ast"
 
 /**
@@ -25,7 +25,7 @@ function getStartLocation(token: { range: number[] }): number {
  * @returns The found index or `tokens.length`.
  */
 export function search(tokens: HasLocation[], location: number): number {
-    return lodash.sortedIndexBy(
+    return sortedIndexBy(
         tokens,
         {range: [location]},
         getStartLocation

src/html/intermediate-tokenizer.ts

@@ -4,7 +4,7 @@
  * See LICENSE file in root directory for full license.
  */
 import assert from "assert"
-import * as lodash from "lodash"
+import last from "lodash/last"
 import { ErrorCode, HasLocation, Namespace, ParseError, Token, VAttribute } from "../ast"
 import { debug } from "../common/debug"
 import { Tokenizer, TokenizerState, TokenType } from "./tokenizer"
@@ -168,7 +168,7 @@ export class IntermediateTokenizer {
             // VExpressionEnd was not found.
             // Concatenate the deferred tokens to the committed token.
             const start = this.expressionStartToken
-            const end = lodash.last(this.expressionTokens) || start
+            const end = last(this.expressionTokens) || start
             const value = this.expressionTokens.reduce(concat, start.value)
             this.expressionStartToken = null
             this.expressionTokens = []
@@ -229,7 +229,7 @@ export class IntermediateTokenizer {
 
         if (this.expressionStartToken != null) {
             // Defer this token until a VExpressionEnd token or a non-text token appear.
-            const lastToken = lodash.last(this.expressionTokens) || this.expressionStartToken
+            const lastToken = last(this.expressionTokens) || this.expressionStartToken
             if (lastToken.range[1] === token.range[0]) {
                 this.expressionTokens.push(token)
                 return null
@@ -528,7 +528,7 @@ export class IntermediateTokenizer {
         }
 
         const start = this.expressionStartToken
-        const end = lodash.last(this.expressionTokens) || start
+        const end = last(this.expressionTokens) || start
 
         // If invalid notation `</>` exists directly before this token, separate it.
         if (end.range[1] !== token.range[0]) {

src/html/parser.ts

@@ -4,7 +4,8 @@
  * See LICENSE file in root directory for full license.
  */
 import assert from "assert"
-import * as lodash from "lodash"
+import last from "lodash/last"
+import findLastIndex from "lodash/findLastIndex"
 import { ErrorCode, HasLocation, Namespace, NS, ParseError, Token, VAttribute, VDocumentFragment, VElement, VExpressionContainer } from "../ast"
 import { debug } from "../common/debug"
 import { LocationCalculator } from "../common/location-calculator"
@@ -95,7 +96,7 @@ function adjustAttributeName(name: string, namespace: Namespace): string {
  * @param node The node to commit the end location.
  */
 function propagateEndLocation(node: VDocumentFragment | VElement): void {
-    const lastChild = (node.type === "VElement" ? node.endTag : null) || lodash.last(node.children)
+    const lastChild = (node.type === "VElement" ? node.endTag : null) || last(node.children)
     if (lastChild != null) {
         node.range[1] = lastChild.range[1]
         node.loc.end = lastChild.loc.end
@@ -165,7 +166,7 @@ export class Parser {
      * Get the current node.
      */
     private get currentNode(): VDocumentFragment | VElement {
-        return lodash.last(this.elementStack) || this.document
+        return last(this.elementStack) || this.document
     }
 
     /**
@@ -416,7 +417,7 @@ export class Parser {
     protected EndTag(token: EndTag): void {
         debug("[html] EndTag %j", token)
 
-        const i = lodash.findLastIndex(this.elementStack, (el) =>
+        const i = findLastIndex(this.elementStack, (el) =>
             el.name.toLowerCase() === token.name
         )
         if (i === -1) {

src/script/index.ts

@@ -3,7 +3,8 @@
  * @copyright 2017 Toru Nagashima. All rights reserved.
  * See LICENSE file in root directory for full license.
  */
-import * as lodash from "lodash"
+import first from "lodash/first"
+import last from "lodash/last"
 import { traverseNodes, ESLintArrayPattern, ESLintBlockStatement, ESLintExpression, ESLintExpressionStatement, ESLintExtendedProgram, ESLintForInStatement, ESLintForOfStatement, ESLintPattern, ESLintProgram, ESLintVariableDeclaration, Node, ParseError, Reference, Token, Variable, VElement, VForExpression, VOnExpression } from "../ast"
 import { debug } from "../common/debug"
 import { LocationCalculator } from "../common/location-calculator"
@@ -382,17 +383,17 @@ export function parseVOnExpression(code: string, locationCalculator: LocationCal
         const references = analyzeExternalReferences(ast, parserOptions)
         const block = ast.body[0] as ESLintBlockStatement
         const body = block.body
-        const first = lodash.first(body)
-        const last = lodash.last(body)
+        const firstStatement = first(body)
+        const lastStatement = last(body)
         const expression: VOnExpression = {
             type: "VOnExpression",
             range: [
-                (first != null) ? first.range[0] : block.range[0] + 1,
-                (last != null) ? last.range[1] : block.range[1] - 1,
+                (firstStatement != null) ? firstStatement.range[0] : block.range[0] + 1,
+                (lastStatement != null) ? lastStatement.range[1] : block.range[1] - 1,
             ],
             loc: {
-                start: (first != null) ? first.loc.start : locationCalculator.getLocation(1),
-                end: (last != null) ? last.loc.end : locationCalculator.getLocation(code.length + 1),
+                start: (firstStatement != null) ? firstStatement.loc.start : locationCalculator.getLocation(1),
+                end: (lastStatement != null) ? lastStatement.loc.end : locationCalculator.getLocation(code.length + 1),
             },
             parent: DUMMY_PARENT,
             body,

src/template/index.ts

@@ -3,7 +3,8 @@
  * @copyright 2017 Toru Nagashima. All rights reserved.
  * See LICENSE file in root directory for full license.
  */
-import * as lodash from "lodash"
+import sortedIndexBy from "lodash/sortedIndexBy"
+import sortedLastIndexBy from "lodash/sortedLastIndexBy"
 import { DirectiveKeyParts, ParseError, Reference, Token, Variable, VAttribute, VDirective, VDirectiveKey, VDocumentFragment, VElement, VExpressionContainer, VIdentifier, VLiteral, VNode } from "../ast"
 import { debug } from "../common/debug"
 import { LocationCalculator } from "../common/location-calculator"
@@ -197,8 +198,8 @@ function replaceTokens(document: VDocumentFragment | null, node: HasRange, newTo
         return
     }
 
-    const index = lodash.sortedIndexBy(document.tokens, node, byRange0)
-    const count = lodash.sortedLastIndexBy(document.tokens, node, byRange1) - index
+    const index = sortedIndexBy(document.tokens, node, byRange0)
+    const count = sortedLastIndexBy(document.tokens, node, byRange1) - index
     splice(document.tokens, index, count, newTokens)
 }
 
@@ -212,7 +213,7 @@ function insertComments(document: VDocumentFragment | null, newComments: Token[]
         return
     }
 
-    const index = lodash.sortedIndexBy(document.comments, newComments[0], byRange0)
+    const index = sortedIndexBy(document.comments, newComments[0], byRange0)
     splice(document.comments, index, 0, newComments)
 }
 
@@ -226,7 +227,7 @@ function insertError(document: VDocumentFragment | null, error: ParseError): voi
         return
     }
 
-    const index = lodash.sortedIndexBy(document.errors, error, byIndex)
+    const index = sortedIndexBy(document.errors, error, byIndex)
     document.errors.splice(index, 0, error)
 }