wip: compileScript

Author: yyx990803

packages/compiler-sfc/src/compileScript.ts

@@ -10,7 +10,9 @@ import {
   ParserPlugin
 } from '@babel/parser'
 import { generateCodeFrame } from 'compiler/codeframe'
-import { camelize, capitalize, makeMap } from 'shared/util'
+import { camelize, capitalize, isBuiltInTag, makeMap } from 'shared/util'
+import { parseHTML } from 'compiler/parser/html-parser'
+import { baseOptions as webCompilerOptions } from 'web/compiler/options'
 import {
   Node,
   Declaration,
@@ -37,6 +39,10 @@ import {
 import { walk } from 'estree-walker'
 import { RawSourceMap } from 'source-map'
 import { warnOnce } from './warn'
+import { isReservedTag } from 'web/util'
+import { dirRE } from 'compiler/parser'
+import { parseText } from 'compiler/parser/text-parser'
+import { DEFAULT_FILENAME } from './parse'
 
 // Special compiler macros
 const DEFINE_PROPS = 'defineProps'
@@ -52,7 +58,6 @@ const isBuiltInDir = makeMap(
 )
 
 export interface SFCScriptCompileOptions {
-  filename: string
   /**
    * Production mode. Used to determine whether to generate hashed CSS variables
    */
@@ -82,10 +87,9 @@ export interface ImportBinding {
  */
 export function compileScript(
   sfc: SFCDescriptor,
-  options: SFCScriptCompileOptions
+  options: SFCScriptCompileOptions = {}
 ): SFCScriptBlock {
-  let { script, scriptSetup, source } = sfc
-  const { filename } = options
+  let { filename, script, scriptSetup, source } = sfc
   const isProd = !!options.isProd
   const genSourceMap = options.sourceMap !== false
   let refBindings: string[] | undefined
@@ -201,10 +205,10 @@ export function compileScript(
 
   // magic-string state
   const s = new MagicString(source)
-  const startOffset = scriptSetup.loc.start.offset
-  const endOffset = scriptSetup.loc.end.offset
-  const scriptStartOffset = script && script.loc.start.offset
-  const scriptEndOffset = script && script.loc.end.offset
+  const startOffset = scriptSetup.start
+  const endOffset = scriptSetup.end
+  const scriptStartOffset = script && script.start
+  const scriptEndOffset = script && script.end
 
   function helper(key: string): string {
     helperImports.add(key)
@@ -1211,7 +1215,7 @@ export function compileScript(
 
   // 11. finalize default export
   let runtimeOptions = ``
-  if (!hasDefaultExportName && filename) {
+  if (!hasDefaultExportName && filename && filename !== DEFAULT_FILENAME) {
     const match = filename.match(/([^/\\]+)\.\w+$/)
     if (match) {
       runtimeOptions += `\n  __name: '${match[1]}',`
@@ -1828,44 +1832,39 @@ function getObjectOrArrayExpressionKeys(value: Node): string[] {
 const templateUsageCheckCache = new LRU<string, string>(512)
 
 function resolveTemplateUsageCheckString(sfc: SFCDescriptor) {
-  const { content, ast } = sfc.template!
+  const { content } = sfc.template!
   const cached = templateUsageCheckCache.get(content)
   if (cached) {
     return cached
   }
 
   let code = ''
-  transform(createRoot([ast]), {
-    nodeTransforms: [
-      node => {
-        if (node.type === NodeTypes.ELEMENT) {
-          if (
-            !parserOptions.isNativeTag!(node.tag) &&
-            !parserOptions.isBuiltInComponent!(node.tag)
-          ) {
-            code += `,${camelize(node.tag)},${capitalize(camelize(node.tag))}`
+
+  parseHTML(content, {
+    ...webCompilerOptions,
+    start(tag, attrs) {
+      if (!isBuiltInTag(tag) && !isReservedTag(tag)) {
+        code += `,${camelize(tag)},${capitalize(camelize(tag))}`
+      }
+      for (let i = 0; i < attrs.length; i++) {
+        const { name, value } = attrs[i]
+        if (dirRE.test(name)) {
+          const baseName = name.replace(dirRE, '')
+          if (!isBuiltInDir(baseName)) {
+            code += `,v${capitalize(camelize(baseName))}`
           }
-          for (let i = 0; i < node.props.length; i++) {
-            const prop = node.props[i]
-            if (prop.type === NodeTypes.DIRECTIVE) {
-              if (!isBuiltInDir(prop.name)) {
-                code += `,v${capitalize(camelize(prop.name))}`
-              }
-              if (prop.exp) {
-                code += `,${processExp(
-                  (prop.exp as SimpleExpressionNode).content,
-                  prop.name
-                )}`
-              }
-            }
+          if (value) {
+            code += `,${processExp(value, baseName)}`
           }
-        } else if (node.type === NodeTypes.INTERPOLATION) {
-          code += `,${processExp(
-            (node.content as SimpleExpressionNode).content
-          )}`
         }
       }
-    ]
+    },
+    chars(text) {
+      const res = parseText(text)
+      if (res) {
+        code += `,${processExp(res.expression)}`
+      }
+    }
   })
 
   code += ';'

packages/compiler-sfc/src/parse.ts

@@ -9,6 +9,8 @@ import {
 import hash from 'hash-sum'
 import LRU from 'lru-cache'
 
+export const DEFAULT_FILENAME = 'anonymous.vue'
+
 const cache = new LRU<string, SFCDescriptor>(100)
 
 const splitRE = /\r?\n/g
@@ -26,9 +28,9 @@ export interface ParseOptions {
 export function parse(options: ParseOptions): SFCDescriptor {
   const {
     source,
-    filename = '',
+    filename = DEFAULT_FILENAME,
     compiler,
-    compilerParseOptions = { pad: 'line' } as VueTemplateCompilerParseOptions,
+    compilerParseOptions = { pad: false } as VueTemplateCompilerParseOptions,
     sourceRoot = '',
     needMap = true
   } = options
@@ -49,6 +51,8 @@ export function parse(options: ParseOptions): SFCDescriptor {
     output = parseComponent(source, compilerParseOptions)
   }
 
+  output.filename = filename
+
   if (needMap) {
     if (output.script && !output.script.src) {
       output.script.map = generateSourceMap(
@@ -73,6 +77,7 @@ export function parse(options: ParseOptions): SFCDescriptor {
       })
     }
   }
+
   cache.set(cacheKey, output)
   return output
 }

packages/compiler-sfc/src/parseComponent.ts

@@ -4,6 +4,7 @@ import { makeMap } from 'shared/util'
 import { ASTAttr, WarningMessage } from 'types/compiler'
 import { BindingMetadata, RawSourceMap } from './types'
 import { hmrShouldReload, ImportBinding } from './compileScript'
+import { DEFAULT_FILENAME } from './parse'
 
 const splitRE = /\r?\n/g
 const replaceRE = /./g
@@ -42,6 +43,7 @@ export interface SFCScriptBlock extends SFCBlock {
 
 export interface SFCDescriptor {
   source: string
+  filename: string
   template: SFCBlock | null
   script: SFCScriptBlock | null
   scriptSetup: SFCScriptBlock | null
@@ -70,11 +72,12 @@ export interface VueTemplateCompilerParseOptions {
  * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
  */
 export function parseComponent(
-  content: string,
+  source: string,
   options: VueTemplateCompilerParseOptions = {}
 ): SFCDescriptor {
   const sfc: SFCDescriptor = {
-    source: content,
+    source,
+    filename: DEFAULT_FILENAME,
     template: null,
     script: null,
     scriptSetup: null, // TODO
@@ -167,8 +170,8 @@ export function parseComponent(
   function end(tag: string, start: number) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start
-      let text = content.slice(currentBlock.start, currentBlock.end)
-      if (options.deindent !== false) {
+      let text = source.slice(currentBlock.start, currentBlock.end)
+      if (options.deindent) {
         text = deindent(text)
       }
       // pad content so that linters and pre-processors can output correct
@@ -184,15 +187,15 @@ export function parseComponent(
 
   function padContent(block: SFCBlock, pad: true | 'line' | 'space') {
     if (pad === 'space') {
-      return content.slice(0, block.start).replace(replaceRE, ' ')
+      return source.slice(0, block.start).replace(replaceRE, ' ')
     } else {
-      const offset = content.slice(0, block.start).split(splitRE).length
+      const offset = source.slice(0, block.start).split(splitRE).length
       const padChar = block.type === 'script' && !block.lang ? '//\n' : '\n'
       return Array(offset).join(padChar)
     }
   }
 
-  parseHTML(content, {
+  parseHTML(source, {
     warn,
     start,
     end,