feat: support AST for template compile (#68)

* feat: support AST for template compile

* fix: change ast type definition

Author: kazupon

README.md

@@ -98,6 +98,7 @@ interface TemplateCompileOptions {
 }
 
 interface TemplateCompileResult {
+  ast: Object | undefined
   code: string
   source: string
   tips: string[]

lib/compileTemplate.ts

@@ -28,6 +28,7 @@ export interface TemplateCompileOptions {
 }
 
 export interface TemplateCompileResult {
+  ast: Object | undefined
   code: string
   source: string
   tips: (string | ErrorWithRange)[]
@@ -47,6 +48,7 @@ export function compileTemplate(
     )
   } else if (preprocessLang) {
     return {
+      ast: {},
       code: `var render = function () {}\n` + `var staticRenderFns = []\n`,
       source: options.source,
       tips: [
@@ -124,13 +126,14 @@ function actuallyCompile(
     })
   }
 
-  const { render, staticRenderFns, tips, errors } = compile(
+  const { ast, render, staticRenderFns, tips, errors } = compile(
     source,
     finalCompilerOptions
   )
 
   if (errors && errors.length) {
     return {
+      ast,
       code: `var render = function () {}\n` + `var staticRenderFns = []\n`,
       source,
       tips,
@@ -181,6 +184,7 @@ function actuallyCompile(
     }
 
     return {
+      ast,
       code,
       source,
       tips,

lib/types.ts

@@ -33,6 +33,8 @@ export interface VueTemplateCompiler {
 export interface VueTemplateCompilerOptions {
   modules?: Object[]
   outputSourceRange?: boolean
+  whitespace?: 'preserve' | 'condense'
+  directives?: { [key: string]: Function }
 }
 
 export interface VueTemplateCompilerParseOptions {
@@ -46,7 +48,7 @@ export interface ErrorWithRange {
 }
 
 export interface VueTemplateCompilerResults {
-  ast: Object | void
+  ast: Object | undefined
   render: string
   staticRenderFns: string[]
   errors: (string | ErrorWithRange)[]

test/compileTemplate.spec.ts

@@ -34,6 +34,7 @@ test('should work', () => {
   expect(result.code).toMatch(`render._withStripped = true`)
   // should prefix bindings
   expect(result.code).toMatch(`_vm.render`)
+  expect(result.ast).not.toBeUndefined()
 })
 
 test('preprocess pug', () => {