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feat(ivy): first steps towards JIT compilation (#23833)

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This commit adds a mechanism by which the @angular/core annotations
for @Component, @Injectable, and @NgModule become decorators which,
when executed at runtime, trigger just-in-time compilation of their
associated types. The activation of these decorators is configured
by the ivy_switch mechanism, ensuring that the Ivy JIT engine does
not get included in Angular bundles unless specifically requested.

PR Close #23833
This commit is contained in:
Alex Rickabaugh
2018-05-09 08:35:25 -07:00
committed by Matias Niemelä
parent 1b6b936ef4
commit 919f42fea1
37 changed files with 1248 additions and 156 deletions
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42
packages/compiler/src/render3/view/template.ts
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@ -12,12 +12,20 @@ import {BindingForm, BuiltinFunctionCall, LocalResolver, convertActionBinding, c
import {ConstantPool} from '../../constant_pool';
import * as core from '../../core';
import {AST, AstMemoryEfficientTransformer, BindingPipe, BindingType, FunctionCall, ImplicitReceiver, LiteralArray, LiteralMap, LiteralPrimitive, PropertyRead} from '../../expression_parser/ast';
import {Lexer} from '../../expression_parser/lexer';
import {Parser} from '../../expression_parser/parser';
import * as html from '../../ml_parser/ast';
import {HtmlParser} from '../../ml_parser/html_parser';
import {DEFAULT_INTERPOLATION_CONFIG} from '../../ml_parser/interpolation_config';
import * as o from '../../output/output_ast';
import {ParseSourceSpan} from '../../parse_util';
import {ParseError, ParseSourceSpan} from '../../parse_util';
import {DomElementSchemaRegistry} from '../../schema/dom_element_schema_registry';
import {CssSelector, SelectorMatcher} from '../../selector';
import {BindingParser} from '../../template_parser/binding_parser';
import {OutputContext, error} from '../../util';
import * as t from '../r3_ast';
import {Identifiers as R3} from '../r3_identifiers';
import {htmlAstToRender3Ast} from '../r3_template_transform';
import {R3QueryMetadata} from './api';
import {CONTEXT_NAME, I18N_ATTR, I18N_ATTR_PREFIX, ID_SEPARATOR, IMPLICIT_REFERENCE, MEANING_SEPARATOR, REFERENCE_PREFIX, RENDER_FLAGS, TEMPORARY_NAME, asLiteral, getQueryPredicate, invalid, mapToExpression, noop, temporaryAllocator, trimTrailingNulls, unsupported} from './util';
@ -713,3 +721,35 @@ function interpolate(args: o.Expression[]): o.Expression {
error(`Invalid interpolation argument length ${args.length}`);
return o.importExpr(R3.interpolationV).callFn([o.literalArr(args)]);
}
/**
* Parse a template into render3 `Node`s and additional metadata, with no other dependencies.
*
* @param template text of the template to parse
* @param templateUrl URL to use for source mapping of the parsed template
*/
export function parseTemplate(template: string, templateUrl: string):
{errors?: ParseError[], nodes: t.Node[], hasNgContent: boolean, ngContentSelectors: string[]} {
const bindingParser = makeBindingParser();
const htmlParser = new HtmlParser();
const parseResult = htmlParser.parse(template, templateUrl);
if (parseResult.errors && parseResult.errors.length > 0) {
return {errors: parseResult.errors, nodes: [], hasNgContent: false, ngContentSelectors: []};
}
const {nodes, hasNgContent, ngContentSelectors, errors} =
htmlAstToRender3Ast(parseResult.rootNodes, bindingParser);
if (errors && errors.length > 0) {
return {errors, nodes: [], hasNgContent: false, ngContentSelectors: []};
}
return {nodes, hasNgContent, ngContentSelectors};
}
/**
* Construct a `BindingParser` with a default configuration.
*/
export function makeBindingParser(): BindingParser {
return new BindingParser(
new Parser(new Lexer()), DEFAULT_INTERPOLATION_CONFIG, new DomElementSchemaRegistry(), [],
[]);
}