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refactor(ivy): split type into type, internalType and adjacentType (#33533)

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When compiling an Angular decorator (e.g. Directive), @angular/compiler
generates an 'expression' to be added as a static definition field
on the class, a 'type' which will be added for that field to the .d.ts
file, and a statement adjacent to the class that calls `setClassMetadata()`.

Previously, the same WrappedNodeExpr of the class' ts.Identifier was used
within each of this situations.

In the ngtsc case, this is proper. In the ngcc case, if the class being
compiled is within an ES5 IIFE, the outer name of the class may have
changed. Thus, the class has both an inner and outer name. The outer name
should continue to be used elsewhere in the compiler and in 'type'.

The 'expression' will live within the IIFE, the `internalType` should be used.
The adjacent statement will also live within the IIFE, the `adjacentType` should be used.

This commit introduces `ReflectionHost.getInternalNameOfClass()` and
`ReflectionHost.getAdjacentNameOfClass()`, which the compiler can use to
query for the correct name to use.

PR Close #33533
This commit is contained in:
Alex Rickabaugh
2019-11-01 16:55:09 +00:00
committed by atscott
parent d9a38928f5
commit 8d0de89ece
14 changed files with 116 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
packages/compiler/src/render3/r3_module_compiler.ts
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@ -31,6 +31,24 @@ export interface R3NgModuleMetadata {
*/
type: o.Expression;
/**
* An expression representing the module type being compiled, intended for use within a class
* definition itself.
*
* This can differ from the outer `type` if the class is being compiled by ngcc and is inside
* an IIFE structure that uses a different name internally.
*/
internalType: o.Expression;
/**
* An expression intended for use by statements that are adjacent (i.e. tightly coupled) to but
* not internal to a class definition.
*
* This can differ from the outer `type` if the class is being compiled by ngcc and is inside
* an IIFE structure that uses a different name internally.
*/
adjacentType: o.Expression;
/**
* An array of expressions representing the bootstrap components specified by the module.
*/
@ -77,6 +95,7 @@ export interface R3NgModuleMetadata {
*/
export function compileNgModule(meta: R3NgModuleMetadata): R3NgModuleDef {
const {
internalType,
type: moduleType,
bootstrap,
declarations,
@ -90,7 +109,7 @@ export function compileNgModule(meta: R3NgModuleMetadata): R3NgModuleDef {
const additionalStatements: o.Statement[] = [];
const definitionMap = {
type: moduleType
type: internalType
} as{
type: o.Expression,
bootstrap: o.Expression,
@ -156,7 +175,7 @@ export function compileNgModule(meta: R3NgModuleMetadata): R3NgModuleDef {
* symbols to become tree-shakeable.
*/
function generateSetNgModuleScopeCall(meta: R3NgModuleMetadata): o.Statement|null {
const {type: moduleType, declarations, imports, exports, containsForwardDecls} = meta;
const {adjacentType: moduleType, declarations, imports, exports, containsForwardDecls} = meta;
const scopeMap = {} as{
declarations: o.Expression,
@ -198,6 +217,7 @@ export interface R3InjectorDef {
export interface R3InjectorMetadata {
name: string;
type: o.Expression;
internalType: o.Expression;
deps: R3DependencyMetadata[]|null;
providers: o.Expression|null;
imports: o.Expression[];
@ -207,6 +227,7 @@ export function compileInjector(meta: R3InjectorMetadata): R3InjectorDef {
const result = compileFactoryFunction({
name: meta.name,
type: meta.type,
internalType: meta.internalType,
typeArgumentCount: 0,
deps: meta.deps,
injectFn: R3.inject,