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first cut of async/await (#2098)

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- async arrow functions not yet supported


fixes #1789
This commit is contained in:
kzc
2017-06-14 18:15:48 -04:00
committed by Alex Lam S.L
parent 7cc03d4d40
commit 100e18305d
7 changed files with 310 additions and 18 deletions
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26
lib/ast.js
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@@ -355,13 +355,14 @@ var AST_Expansion = DEFNODE("Expansion", "expression", {
}
});
var AST_Lambda = DEFNODE("Lambda", "name argnames uses_arguments is_generator", {
var AST_Lambda = DEFNODE("Lambda", "name argnames uses_arguments is_generator async", {
$documentation: "Base class for functions",
$propdoc: {
is_generator: "[boolean] is generatorFn or not",
name: "[AST_SymbolDeclaration?] the name of this function",
argnames: "[AST_SymbolFunarg|AST_Destructuring|AST_Expansion|AST_DefaultAssign*] array of function arguments, destructurings, or expanding arguments",
uses_arguments: "[boolean/S] tells whether this function accesses the arguments array"
uses_arguments: "[boolean/S] tells whether this function accesses the arguments array",
is_generator: "[boolean] is this a generator method",
async: "[boolean] is this method async",
},
args_as_names: function () {
var out = [];
@@ -893,11 +894,12 @@ var AST_ObjectGetter = DEFNODE("ObjectGetter", "quote static", {
$documentation: "An object getter property",
}, AST_ObjectProperty);
var AST_ConciseMethod = DEFNODE("ConciseMethod", "quote static is_generator", {
var AST_ConciseMethod = DEFNODE("ConciseMethod", "quote static is_generator async", {
$propdoc: {
quote: "[string|undefined] the original quote character, if any",
static: "[boolean] whether this method is static (classes only)",
is_generator: "[boolean] is generatorFn or not",
static: "[boolean] is this method static (classes only)",
is_generator: "[boolean] is this a generator method",
async: "[boolean] is this method async",
},
$documentation: "An ES6 concise method inside an object or class"
}, AST_ObjectProperty);
@@ -1101,7 +1103,17 @@ var AST_True = DEFNODE("True", null, {
value: true
}, AST_Boolean);
/* -----[ Yield ]----- */
var AST_Await = DEFNODE("Await", "expression", {
$documentation: "An `await` statement",
$propdoc: {
expression: "[AST_Node] the mandatory expression being awaited",
},
_walk: function(visitor) {
return visitor._visit(this, function(){
this.expression._walk(visitor);
});
}
});
var AST_Yield = DEFNODE("Yield", "expression is_star", {
$documentation: "A `yield` statement",