Former-commit-id: cb2ee39bfa
This commit is contained in:
Jarred Sumner
2021-06-30 02:38:23 -07:00
parent 07416311ce
commit 516f264138
8 changed files with 885 additions and 445 deletions

467
src/javascript/jsc/base.zig Normal file
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@@ -0,0 +1,467 @@
pub const js = @import("./JavaScriptCore.zig");
const std = @import("std");
pub usingnamespace @import("../../global.zig");
const javascript = @import("./javascript.zig");
pub const ExceptionValueRef = [*c]js.JSValueRef;
pub const JSValueRef = js.JSValueRef;
pub const To = struct {
pub const JS = struct {
pub inline fn str(ref: anytype, val: anytype) js.JSStringRef {
return js.JSStringCreateWithUTF8CString(val[0.. :0]);
}
pub fn functionWithCallback(
comptime ZigContextType: type,
zig: *ZigContextType,
name: js.JSStringRef,
ctx: js.JSContextRef,
comptime callback: fn (
obj: *ZigContextType,
ctx: js.JSContextRef,
function: js.JSObjectRef,
thisObject: js.JSObjectRef,
arguments: []const js.JSValueRef,
exception: js.ExceptionRef,
) js.JSValueRef,
) js.JSObjectRef {
var function = js.JSObjectMakeFunctionWithCallback(ctx, name, Callback(ZigContextType, callback).rfn);
_ = js.JSObjectSetPrivate(
function,
@ptrCast(*c_void, @alignCast(@alignOf(*c_void), zig)),
);
return function;
}
pub fn Callback(
comptime ZigContextType: type,
comptime ctxfn: fn (
obj: *ZigContextType,
ctx: js.JSContextRef,
function: js.JSObjectRef,
thisObject: js.JSObjectRef,
arguments: []const js.JSValueRef,
exception: js.ExceptionRef,
) js.JSValueRef,
) type {
return struct {
pub fn rfn(
ctx: js.JSContextRef,
function: js.JSObjectRef,
thisObject: js.JSObjectRef,
argumentCount: usize,
arguments: [*c]const js.JSValueRef,
exception: js.ExceptionRef,
) callconv(.C) js.JSValueRef {
var object_ptr_ = js.JSObjectGetPrivate(function);
if (object_ptr_ == null) {
object_ptr_ = js.JSObjectGetPrivate(thisObject);
}
if (object_ptr_ == null) {
return js.JSValueMakeUndefined(ctx);
}
var object_ptr = object_ptr_.?;
return ctxfn(
@ptrCast(*ZigContextType, @alignCast(@alignOf(*ZigContextType), object_ptr)),
ctx,
function,
thisObject,
if (arguments) |args| args[0..argumentCount] else &[_]js.JSValueRef{},
exception,
);
}
};
}
};
pub const Ref = struct {
pub inline fn str(ref: anytype) js.JSStringRef {
return @as(js.JSStringRef, ref);
}
};
pub const Zig = struct {
pub inline fn str(ref: anytype, buf: anytype) string {
return buf[0..js.JSStringGetUTF8CString(Ref.str(ref), buf.ptr, buf.len)];
}
};
};
pub const Properties = struct {
pub const UTF8 = struct {
pub const module = "module";
pub const globalThis = "globalThis";
pub const exports = "exports";
pub const log = "log";
pub const debug = "debug";
pub const name = "name";
pub const info = "info";
pub const error_ = "error";
pub const warn = "warn";
pub const console = "console";
pub const require = "require";
pub const description = "description";
pub const initialize_bundled_module = "$$m";
pub const load_module_function = "$lOaDuRcOdE$";
pub const window = "window";
};
pub const UTF16 = struct {
pub const module: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.module);
pub const globalThis: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.globalThis);
pub const exports: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.exports);
pub const log: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.log);
pub const debug: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.debug);
pub const info: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.info);
pub const error_: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.error_);
pub const warn: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.warn);
pub const console: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.console);
pub const require: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.require);
pub const description: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.description);
pub const name: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.name);
pub const initialize_bundled_module = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.initialize_bundled_module);
pub const load_module_function: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.load_module_function);
pub const window: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.window);
};
pub const Refs = struct {
pub var module: js.JSStringRef = null;
pub var globalThis: js.JSStringRef = null;
pub var exports: js.JSStringRef = null;
pub var log: js.JSStringRef = null;
pub var debug: js.JSStringRef = null;
pub var info: js.JSStringRef = null;
pub var error_: js.JSStringRef = null;
pub var warn: js.JSStringRef = null;
pub var console: js.JSStringRef = null;
pub var require: js.JSStringRef = null;
pub var description: js.JSStringRef = null;
pub var name: js.JSStringRef = null;
pub var initialize_bundled_module: js.JSStringRef = null;
pub var load_module_function: js.JSStringRef = null;
pub var window: js.JSStringRef = null;
};
pub fn init() void {
inline for (std.meta.fieldNames(UTF8)) |name| {
@field(Refs, name) = js.JSStringRetain(
js.JSStringCreateWithCharactersNoCopy(
@field(StringStore.UTF16, name).ptr,
@field(StringStore.UTF16, name).len - 1,
),
);
if (isDebug) {
std.debug.assert(
js.JSStringIsEqualToUTF8CString(@field(Refs, name), @field(UTF8, name)[0.. :0]),
);
}
}
}
};
pub fn NewClass(
comptime ZigType: type,
comptime name: string,
comptime staticFunctions: anytype,
comptime properties: anytype,
comptime read_only: bool,
comptime singleton: bool,
) type {
return struct {
const ClassDefinitionCreator = @This();
const function_names = std.meta.fieldNames(@TypeOf(staticFunctions));
const names_buf = brk: {
var total_len: usize = 0;
for (function_names) |field, i| {
total_len += std.unicode.utf8ToUtf16LeStringLiteral(field).len;
}
var offset: usize = 0;
var names_buf_ = std.mem.zeroes([total_len]u16);
for (function_names) |field, i| {
var name_ = std.unicode.utf8ToUtf16LeStringLiteral(field);
std.mem.copy(u16, names_buf_[offset .. name_.len + offset], name_[0..]);
offset += name_.len;
}
break :brk names_buf_;
};
const function_name_literals: [function_names.len][]const js.JSChar = brk: {
var names = std.mem.zeroes([function_names.len][]const js.JSChar);
var len: usize = 0;
for (function_names) |field, i| {
const end = len + std.unicode.utf8ToUtf16LeStringLiteral(field).len;
names[i] = names_buf[len..end];
len = end;
}
break :brk names;
};
var function_name_refs: [function_names.len]js.JSStringRef = undefined;
var class_name_str = name[0.. :0].ptr;
const class_name_literal = std.unicode.utf8ToUtf16LeStringLiteral(name);
var static_functions: [function_name_refs.len + 1]js.JSStaticFunction = undefined;
var instance_functions: [function_names.len]js.JSObjectRef = undefined;
const property_names = std.meta.fieldNames(@TypeOf(properties));
var property_name_refs: [property_names.len]js.JSStringRef = undefined;
const property_name_literals: [property_names.len][]const js.JSChar = brk: {
var list = std.mem.zeroes([property_names.len][]const js.JSChar);
for (property_names) |prop_name, i| {
list[i] = std.unicode.utf8ToUtf16LeStringLiteral(prop_name);
}
break :brk list;
};
var static_properties: [property_names.len]js.JSStaticValue = undefined;
pub fn getPropertyCallback(
ctx: js.JSContextRef,
obj: js.JSObjectRef,
prop: js.JSStringRef,
exception: js.ExceptionRef,
) callconv(.C) js.JSValueRef {
var instance_pointer_ = js.JSObjectGetPrivate(obj);
if (instance_pointer_ == null) return null;
var instance_pointer = instance_pointer_.?;
var ptr = @ptrCast(
*ZigType,
@alignCast(
@alignOf(
*ZigType,
),
instance_pointer,
),
);
if (singleton) {
inline for (function_names) |propname, i| {
if (js.JSStringIsEqual(prop, function_name_refs[i])) {
return instance_functions[i];
}
}
if (comptime std.meta.trait.hasFn("onMissingProperty")(ZigType)) {
return ptr.onMissingProperty(ctx, obj, prop, exception);
}
} else {
inline for (property_names) |propname, i| {
if (js.JSStringIsEqual(prop, property_name_refs[i])) {
return @field(
properties,
propname,
)(ptr, ctx, obj, exception);
}
}
if (comptime std.meta.trait.hasFn("onMissingProperty")(ZigType)) {
return ptr.onMissingProperty(ctx, obj, prop, exception);
}
}
return js.JSValueMakeUndefined(ctx);
}
fn StaticProperty(comptime id: usize) type {
return struct {
pub fn getter(
ctx: js.JSContextRef,
obj: js.JSObjectRef,
prop: js.JSStringRef,
exception: js.ExceptionRef,
) callconv(.C) js.JSValueRef {
var instance_pointer_ = js.JSObjectGetPrivate(obj);
if (instance_pointer_ == null) return null;
var this: *ZigType = @ptrCast(
*ZigType,
@alignCast(
@alignOf(
*ZigType,
),
instance_pointer_.?,
),
);
var exc: js.ExceptionRef = null;
switch (comptime @typeInfo(@TypeOf(@field(
properties,
property_names[id],
)))) {
.Fn => {
return @field(
properties,
property_names[id],
)(
this,
ctx,
obj,
exception,
);
},
.Struct => {
return @field(
@field(
properties,
property_names[id],
),
"get",
)(
this,
ctx,
obj,
prop,
exception,
);
},
else => unreachable,
}
}
pub fn setter(
ctx: js.JSContextRef,
obj: js.JSObjectRef,
prop: js.JSStringRef,
value: js.JSValueRef,
exception: js.ExceptionRef,
) callconv(.C) bool {
var instance_pointer_ = js.JSObjectGetPrivate(obj);
if (instance_pointer_ == null) return false;
var this: *ZigType = @ptrCast(
*ZigType,
@alignCast(
@alignOf(
*ZigType,
),
instance_pointer_.?,
),
);
var exc: js.ExceptionRef = null;
switch (comptime @typeInfo(@TypeOf(@field(
properties,
property_names[id],
)))) {
.Struct => {
return @field(
@field(
properties,
property_names[id],
),
"set",
)(
this,
ctx,
obj,
prop,
value,
exception,
);
},
else => unreachable,
}
}
};
}
pub fn define() js.JSClassDefinition {
var def = js.kJSClassDefinitionEmpty;
if (static_functions.len > 0) {
std.mem.set(js.JSStaticFunction, &static_functions, std.mem.zeroes(js.JSStaticFunction));
var count: usize = 0;
inline for (function_name_literals) |function_name, i| {
if (comptime strings.eqlComptime(function_names[i], "constructor")) {
def.callAsConstructor = @field(staticFunctions, function_names[i]);
} else {
count += 1;
var callback = To.JS.Callback(ZigType, @field(staticFunctions, function_names[i])).rfn;
static_functions[count] = js.JSStaticFunction{
.name = (function_names[i][0.. :0]).ptr,
.callAsFunction = callback,
.attributes = comptime if (read_only) js.JSPropertyAttributes.kJSPropertyAttributeReadOnly else js.JSPropertyAttributes.kJSPropertyAttributeNone,
};
}
// if (singleton) {
// var function = js.JSObjectMakeFunctionWithCallback(ctx, function_name_refs[i], callback);
// instance_functions[i] = function;
// }
}
def.staticFunctions = static_functions[0..count].ptr;
}
if (property_names.len > 0) {
inline for (comptime property_name_literals) |prop_name, i| {
property_name_refs[i] = js.JSStringCreateWithCharactersNoCopy(
prop_name.ptr,
prop_name.len,
);
static_properties[i] = std.mem.zeroes(js.JSStaticValue);
static_properties[i].getProperty = StaticProperty(i).getter;
const field = comptime @field(properties, property_names[i]);
const hasSetter = std.meta.trait.hasField("set");
if (comptime hasSetter(@TypeOf(field))) {
static_properties[i].setProperty = StaticProperty(i).setter;
}
static_properties[i].name = property_names[i][0.. :0];
}
def.staticValues = (&static_properties);
}
def.className = class_name_str;
// def.getProperty = getPropertyCallback;
def.finalize
return def;
}
};
}
threadlocal var error_args: [1]js.JSValueRef = undefined;
pub fn JSError(
allocator: *std.mem.Allocator,
comptime fmt: string,
args: anytype,
ctx: js.JSContextRef,
exception: ExceptionValueRef,
) void {
if (comptime std.meta.fields(@TypeOf(args)).len == 0) {
var message = js.JSStringCreateWithUTF8CString(fmt[0.. :0]);
defer js.JSStringRelease(message);
error_args[0] = js.JSValueMakeString(ctx, message);
exception.* = js.JSObjectMakeError(ctx, 1, &error_args, null);
} else {
var buf = std.fmt.allocPrintZ(allocator, fmt, args) catch unreachable;
var message = js.JSStringCreateWithUTF8CString(buf);
defer js.JSStringRelease(message);
defer allocator.free(buf);
error_args[0] = js.JSValueMakeString(ctx, message);
exception.* = js.JSObjectMakeError(ctx, 1, &error_args, null);
}
}
pub fn getAllocator(ctx: js.JSContextRef) *std.mem.Allocator {
var global_obj = js.JSContextGetGlobalObject(ctx);
var priv = js.JSObjectGetPrivate(global_obj).?;
var global = @ptrCast(*javascript.GlobalObject, @alignCast(@alignOf(*javascript.GlobalObject), priv));
return global.vm.allocator;
}
pub const JSStringList = std.ArrayList(js.JSStringRef);
pub const ArrayBuffer = struct {
ptr: [*]u8 = undefined,
offset: u32,
// for the array type,
len: u32,
byte_len: u32,
typed_array_type: js.JSTypedArrayType,
};

View File

@@ -1,11 +1,9 @@
const js = @import("./JavaScriptCore.zig");
const std = @import("std");
usingnamespace @import("../../global.zig");
const Fs = @import("../../fs.zig");
const resolver = @import("../../resolver/resolver.zig");
const ast = @import("../../import_record.zig");
const NodeModuleBundle = @import("../../node_module_bundle.zig").NodeModuleBundle;
const WTFString = @import("../../wtf_string_mutable.zig").WTFStringMutable;
const logger = @import("../../logger.zig");
const Api = @import("../../api/schema.zig").Api;
const options = @import("../../options.zig");
@@ -13,35 +11,9 @@ const Bundler = @import("../../bundler.zig").ServeBundler;
const js_printer = @import("../../js_printer.zig");
const hash_map = @import("../../hash_map.zig");
const http = @import("../../http.zig");
usingnamespace @import("./node_env_buf_map.zig");
pub const ExportJavaScript = union(Tag) {
Module: *Module,
String: *String,
GlobalObject: *GlobalObject,
pub const Tag = enum {
Module,
String,
GlobalObject,
};
};
pub const ResolveFunctionType = fn (ctx: anytype, source_dir: string, import_path: string, import_kind: ast.ImportKind) anyerror!resolver.Result;
pub const TranspileFunctionType = fn (ctx: anytype, resolve_result: resolver.Result) anyerror![:0]const u8;
pub const ExceptionValueRef = [*c]js.JSValueRef;
pub const JSValueRef = js.JSValueRef;
const JSStringMapContext = struct {
pub fn hash(self: @This(), s: js.JSStringRef) u64 {
return hashString(s);
}
pub fn eql(self: @This(), a: js.JSStringRef, b: js.JSStringRef) bool {
return eqlString(a, b);
}
};
pub fn JSStringMap(comptime V: type) type {
return std.HashMap(js.JSStringRef, V, JSStringMapContext, 60);
}
usingnamespace @import("./base.zig");
const DefaultSpeedyDefines = struct {
pub const Keys = struct {
@@ -219,160 +191,7 @@ pub const VirtualMachine = struct {
}
};
pub const To = struct {
pub const JS = struct {
pub inline fn str(ref: anytype, val: anytype) js.JSStringRef {
return js.JSStringCreateWithUTF8CString(val[0.. :0]);
}
pub fn functionWithCallback(
comptime ZigContextType: type,
zig: *ZigContextType,
name: js.JSStringRef,
ctx: js.JSContextRef,
comptime callback: fn (
obj: *ZigContextType,
ctx: js.JSContextRef,
function: js.JSObjectRef,
thisObject: js.JSObjectRef,
arguments: []const js.JSValueRef,
exception: js.ExceptionRef,
) js.JSValueRef,
) js.JSObjectRef {
var function = js.JSObjectMakeFunctionWithCallback(ctx, name, Callback(ZigContextType, callback).rfn);
_ = js.JSObjectSetPrivate(
function,
@ptrCast(*c_void, @alignCast(@alignOf(*c_void), zig)),
);
return function;
}
pub fn Callback(
comptime ZigContextType: type,
comptime ctxfn: fn (
obj: *ZigContextType,
ctx: js.JSContextRef,
function: js.JSObjectRef,
thisObject: js.JSObjectRef,
arguments: []const js.JSValueRef,
exception: js.ExceptionRef,
) js.JSValueRef,
) type {
return struct {
pub fn rfn(
ctx: js.JSContextRef,
function: js.JSObjectRef,
thisObject: js.JSObjectRef,
argumentCount: usize,
arguments: [*c]const js.JSValueRef,
exception: js.ExceptionRef,
) callconv(.C) js.JSValueRef {
var object_ptr_ = js.JSObjectGetPrivate(function);
if (object_ptr_ == null) {
object_ptr_ = js.JSObjectGetPrivate(thisObject);
}
if (object_ptr_ == null) {
return js.JSValueMakeUndefined(ctx);
}
var object_ptr = object_ptr_.?;
return ctxfn(
@ptrCast(*ZigContextType, @alignCast(@alignOf(*ZigContextType), object_ptr)),
ctx,
function,
thisObject,
if (arguments) |args| args[0..argumentCount] else &[_]js.JSValueRef{},
exception,
);
}
};
}
};
pub const Ref = struct {
pub inline fn str(ref: anytype) js.JSStringRef {
return @as(js.JSStringRef, ref);
}
};
pub const Zig = struct {
pub inline fn str(ref: anytype, buf: anytype) string {
return buf[0..js.JSStringGetUTF8CString(Ref.str(ref), buf.ptr, buf.len)];
}
};
};
pub const Properties = struct {
pub const UTF8 = struct {
pub const module = "module";
pub const globalThis = "globalThis";
pub const exports = "exports";
pub const log = "log";
pub const debug = "debug";
pub const name = "name";
pub const info = "info";
pub const error_ = "error";
pub const warn = "warn";
pub const console = "console";
pub const require = "require";
pub const description = "description";
pub const initialize_bundled_module = "$$m";
pub const load_module_function = "$lOaDuRcOdE$";
};
pub const UTF16 = struct {
pub const module: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.module);
pub const globalThis: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.globalThis);
pub const exports: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.exports);
pub const log: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.log);
pub const debug: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.debug);
pub const info: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.info);
pub const error_: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.error_);
pub const warn: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.warn);
pub const console: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.console);
pub const require: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.require);
pub const description: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.description);
pub const name: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.name);
pub const initialize_bundled_module = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.initialize_bundled_module);
pub const load_module_function: []c_ushort = std.unicode.utf8ToUtf16LeStringLiteral(UTF8.load_module_function);
};
pub const Refs = struct {
pub var module: js.JSStringRef = null;
pub var globalThis: js.JSStringRef = null;
pub var exports: js.JSStringRef = null;
pub var log: js.JSStringRef = null;
pub var debug: js.JSStringRef = null;
pub var info: js.JSStringRef = null;
pub var error_: js.JSStringRef = null;
pub var warn: js.JSStringRef = null;
pub var console: js.JSStringRef = null;
pub var require: js.JSStringRef = null;
pub var description: js.JSStringRef = null;
pub var name: js.JSStringRef = null;
pub var initialize_bundled_module: js.JSStringRef = null;
pub var load_module_function: js.JSStringRef = null;
};
pub fn init() void {
inline for (std.meta.fieldNames(UTF8)) |name| {
@field(Refs, name) = js.JSStringRetain(
js.JSStringCreateWithCharactersNoCopy(
@field(StringStore.UTF16, name).ptr,
@field(StringStore.UTF16, name).len - 1,
),
);
if (isDebug) {
std.debug.assert(
js.JSStringIsEqualToUTF8CString(@field(Refs, name), @field(UTF8, name)[0.. :0]),
);
}
}
}
};
pub const Object = struct {
ref: js.jsObjectRef,
@@ -1535,255 +1354,3 @@ pub const GlobalObject = struct {
// js.JSObjectMakeFunctionWithCallback(ctx: JSContextRef, name: JSStringRef, callAsFunction: JSObjectCallAsFunctionCallback)
}
};
pub fn NewClass(
comptime ZigType: type,
comptime name: string,
comptime staticFunctions: anytype,
comptime properties: anytype,
comptime read_only: bool,
comptime singleton: bool,
) type {
return struct {
const ClassDefinitionCreator = @This();
const function_names = std.meta.fieldNames(@TypeOf(staticFunctions));
const names_buf = brk: {
var total_len: usize = 0;
for (function_names) |field, i| {
total_len += std.unicode.utf8ToUtf16LeStringLiteral(field).len;
}
var offset: usize = 0;
var names_buf_ = std.mem.zeroes([total_len]u16);
for (function_names) |field, i| {
var name_ = std.unicode.utf8ToUtf16LeStringLiteral(field);
std.mem.copy(u16, names_buf_[offset .. name_.len + offset], name_[0..]);
offset += name_.len;
}
break :brk names_buf_;
};
const function_name_literals: [function_names.len][]const js.JSChar = brk: {
var names = std.mem.zeroes([function_names.len][]const js.JSChar);
var len: usize = 0;
for (function_names) |field, i| {
const end = len + std.unicode.utf8ToUtf16LeStringLiteral(field).len;
names[i] = names_buf[len..end];
len = end;
}
break :brk names;
};
var function_name_refs: [function_names.len]js.JSStringRef = undefined;
var class_name_str = name[0.. :0].ptr;
const class_name_literal = std.unicode.utf8ToUtf16LeStringLiteral(name);
var static_functions: [function_name_refs.len + 1]js.JSStaticFunction = undefined;
var instance_functions: [function_names.len]js.JSObjectRef = undefined;
const property_names = std.meta.fieldNames(@TypeOf(properties));
var property_name_refs: [property_names.len]js.JSStringRef = undefined;
const property_name_literals: [property_names.len][]const js.JSChar = brk: {
var list = std.mem.zeroes([property_names.len][]const js.JSChar);
for (property_names) |prop_name, i| {
list[i] = std.unicode.utf8ToUtf16LeStringLiteral(prop_name);
}
break :brk list;
};
var static_properties: [property_names.len]js.JSStaticValue = undefined;
pub fn getPropertyCallback(
ctx: js.JSContextRef,
obj: js.JSObjectRef,
prop: js.JSStringRef,
exception: js.ExceptionRef,
) callconv(.C) js.JSValueRef {
var instance_pointer_ = js.JSObjectGetPrivate(obj);
if (instance_pointer_ == null) return null;
var instance_pointer = instance_pointer_.?;
var ptr = @ptrCast(
*ZigType,
@alignCast(
@alignOf(
*ZigType,
),
instance_pointer,
),
);
if (singleton) {
inline for (function_names) |propname, i| {
if (js.JSStringIsEqual(prop, function_name_refs[i])) {
return instance_functions[i];
}
}
if (comptime std.meta.trait.hasFn("onMissingProperty")(ZigType)) {
return ptr.onMissingProperty(ctx, obj, prop, exception);
}
} else {
inline for (property_names) |propname, i| {
if (js.JSStringIsEqual(prop, property_name_refs[i])) {
return @field(
properties,
propname,
)(ptr, ctx, obj, exception);
}
}
if (comptime std.meta.trait.hasFn("onMissingProperty")(ZigType)) {
return ptr.onMissingProperty(ctx, obj, prop, exception);
}
}
return js.JSValueMakeUndefined(ctx);
}
fn StaticProperty(comptime id: usize) type {
return struct {
pub fn getter(
ctx: js.JSContextRef,
obj: js.JSObjectRef,
prop: js.JSStringRef,
exception: js.ExceptionRef,
) callconv(.C) js.JSValueRef {
var instance_pointer_ = js.JSObjectGetPrivate(obj);
if (instance_pointer_ == null) return null;
var this: *ZigType = @ptrCast(
*ZigType,
@alignCast(
@alignOf(
*ZigType,
),
instance_pointer_.?,
),
);
var exc: js.ExceptionRef = null;
switch (comptime @typeInfo(@TypeOf(@field(
properties,
property_names[id],
)))) {
.Fn => {
return @field(
properties,
property_names[id],
)(
this,
ctx,
obj,
exception,
);
},
.Struct => {
return @field(
@field(
properties,
property_names[id],
),
"get",
)(
this,
ctx,
obj,
prop,
exception,
);
},
else => unreachable,
}
}
pub fn setter(
ctx: js.JSContextRef,
obj: js.JSObjectRef,
prop: js.JSStringRef,
value: js.JSValueRef,
exception: js.ExceptionRef,
) callconv(.C) bool {
var instance_pointer_ = js.JSObjectGetPrivate(obj);
if (instance_pointer_ == null) return false;
var this: *ZigType = @ptrCast(
*ZigType,
@alignCast(
@alignOf(
*ZigType,
),
instance_pointer_.?,
),
);
var exc: js.ExceptionRef = null;
switch (comptime @typeInfo(@TypeOf(@field(
properties,
property_names[id],
)))) {
.Struct => {
return @field(
@field(
properties,
property_names[id],
),
"set",
)(
this,
ctx,
obj,
prop,
value,
exception,
);
},
else => unreachable,
}
}
};
}
pub fn define() js.JSClassDefinition {
var def = js.kJSClassDefinitionEmpty;
if (static_functions.len > 0) {
std.mem.set(js.JSStaticFunction, &static_functions, std.mem.zeroes(js.JSStaticFunction));
inline for (function_name_literals) |function_name, i| {
var callback = To.JS.Callback(ZigType, @field(staticFunctions, function_names[i])).rfn;
static_functions[i] = js.JSStaticFunction{
.name = (function_names[i][0.. :0]).ptr,
.callAsFunction = callback,
.attributes = comptime if (read_only) js.JSPropertyAttributes.kJSPropertyAttributeReadOnly else js.JSPropertyAttributes.kJSPropertyAttributeNone,
};
// if (singleton) {
// var function = js.JSObjectMakeFunctionWithCallback(ctx, function_name_refs[i], callback);
// instance_functions[i] = function;
// }
}
def.staticFunctions = &static_functions;
}
if (property_names.len > 0) {
inline for (comptime property_name_literals) |prop_name, i| {
property_name_refs[i] = js.JSStringCreateWithCharactersNoCopy(
prop_name.ptr,
prop_name.len,
);
static_properties[i] = std.mem.zeroes(js.JSStaticValue);
static_properties[i].getProperty = StaticProperty(i).getter;
const field = comptime @field(properties, property_names[i]);
const hasSetter = std.meta.trait.hasField("set");
if (comptime hasSetter(@TypeOf(field))) {
static_properties[i].setProperty = StaticProperty(i).setter;
}
static_properties[i].name = property_names[i][0.. :0];
}
def.staticValues = (&static_properties);
}
def.className = class_name_str;
// def.getProperty = getPropertyCallback;
return def;
}
};
}

View File

@@ -0,0 +1,399 @@
usingnamespace @import("../base.zig");
const std = @import("std");
const Api = @import("../../../api/schema.zig").Api;
const http = @import("../../../http.zig");
pub const Response = struct {
pub const Class = NewClass(
Response,
"Response",
.{
.@"constructor" = constructor,
},
.{
// .@"url" = .{
// .@"get" = getURL,
// .ro = true,
// },
.@"ok" = .{
.@"get" = getOK,
.ro = true,
},
.@"status" = .{
.@"get" = getStatus,
.ro = true,
},
},
false,
false,
);
pub var class_definition: js.JSClassDefinition = undefined;
pub var class_ref: js.JSClassRef = undefined;
pub var loaded = false;
pub fn load() void {
if (!loaded) {
class_definition = Class.define();
class_ref = js.JSClassRetain(js.JSClassCreate(&class_definition));
loaded = true;
}
}
allocator: *std.mem.Allocator,
body: Body,
pub const Props = struct {};
pub fn getOK(
this: *Response,
ctx: js.JSContextRef,
thisObject: js.JSValueRef,
prop: js.JSStringRef,
exception: js.ExceptionRef,
) js.JSValueRef {
// https://developer.mozilla.org/en-US/docs/Web/API/Response/ok
return js.JSValueMakeBoolean(ctx, this.body.init.status_code >= 200 and this.body.init.status_code <= 299);
}
pub fn getStatus(
this: *Response,
ctx: js.JSContextRef,
thisObject: js.JSValueRef,
prop: js.JSStringRef,
exception: js.ExceptionRef,
) js.JSValueRef {
// https://developer.mozilla.org/en-US/docs/Web/API/Response/status
return js.JSValueMakeNumber(ctx, @intToFloat(f64, this.body.init.status_code));
}
pub fn finalize(
this: *Response,
ctx: js.JSContextRef,
) void {
this.body.deinit(this.allocator);
this.allocator.destroy(this);
}
pub fn constructor(
ctx: js.JSContextRef,
function: js.JSObjectRef,
arguments_len: usize,
arguments_ptr: [*c]const js.JSValueRef,
exception: js.ExceptionRef,
) callconv(.C) js.JSObjectRef {
const arguments = arguments_ptr[0..arguments_len];
const body = brk: {
switch (arguments.len) {
0 => {
break :brk Body.@"404"(ctx);
},
1 => {
break :brk Body.extract(ctx, arguments[0], exception);
},
else => {
if (js.JSValueGetType(ctx, arguments[1]) == js.JSType.kJSTypeObject) {
break :brk Body.extractWithInit(ctx, arguments[0], arguments[1], exception);
} else {
break :brk Body.extract(ctx, arguments[0], exception);
}
},
}
unreachable;
};
if (exception != null) {
return null;
}
var allocator = getAllocator(ctx);
var response = allocator.create(Response) catch return null;
response.* = Response{
.body = body,
.allocator = allocator,
};
return js.JSObjectMake(ctx, class_ref, response);
}
};
pub const Headers = struct {
pub const Kv = struct {
key: Api.StringPointer,
value: Api.StringPointer,
};
pub const Entries = std.MultiArrayList(Kv);
entries: Entries,
buf: std.ArrayListUnmanaged(u8),
allocator: *std.mem.Allocator,
used: usize = 0,
fn appendString(this: *Headers, str: js.JSStringRef, comptime needs_lowercase: bool) Api.StringPointer {
const ptr = Api.StringPointer{ .offset = this.used, .length = js.JSStringGetLength(str) };
std.debug.assert(ptr.length > 0);
std.debug.assert(this.buf.items.len >= ptr.offset + ptr.length);
var slice = this.buf.items[ptr.offset][0..ptr.length];
ptr.length = js.JSStringGetUTF8CString(this, slice.ptr, slice.len);
if (needs_lowercase) {
for (slice) |c, i| {
slice[i] = std.ascii.toLower(c);
}
}
this.used += ptr.len;
return ptr;
}
fn appendNumber(this: *Headers, num: f64) Api.StringPointer {
const ptr = Api.StringPointer{ .offset = this.used, .length = std.fmt.count("{d}", num) };
std.debug.assert(this.buf.items.len >= ptr.offset + ptr.length);
var slice = this.buf.items[ptr.offset][0..ptr.length];
ptr.length = std.fmt.bufPrint(slice, "{d}", num) catch 0;
this.used += ptr.len;
return ptr;
}
pub fn append(this: *Headers, ctx: js.JSContextRef, key: js.JSStringRef, comptime value_type: js.JSType, value: js.JSValueRef) !void {
this.entries.append(this.allocator, Kv{
.key = this.appendString(key, true),
.value = switch (comptime value_type) {
js.JSType.kJSTypeNumber => this.appendNumber(js.JSValueToNumber(ctx, value, null)),
js.JSType.kJSTypeString => this.appendString(value, false),
},
});
}
};
// https://developer.mozilla.org/en-US/docs/Web/API/Body
pub const Body = struct {
init: Init,
value: Value,
pub fn deinit(this: *Body, allocator: *std.mem.Allocator) void {
if (this.init.headers) |headers| {
headers.buf.deinit(headers.allocator);
headers.entries.deinit(headers.allocator);
}
switch (this.value) {
.ArrayBuffer => {},
.String => |str| {
allocator.free(str);
},
.Empty => {},
}
}
pub const Init = struct {
headers: ?Headers,
status_code: u16,
pub fn init(allocator: *std.mem.Allocator, ctx: js.JSContextRef, init_ref: js.JSValueRef) !?Init {
var result = Init{ .headers = null, .status_code = 0 };
var array = js.JSObjectCopyPropertyNames(ctx, init_ref);
defer js.JSPropertyNameArrayRelease(array);
const count = js.JSPropertyNameArrayGetCount(array);
var i: usize = 0;
upper: while (i < count) : (i += 1) {
var property_name_ref = js.JSPropertyNameArrayGetNameAtIndex(array, i);
switch (js.JSStringGetLength(property_name_ref)) {
"headers".len => {
if (js.JSStringIsEqualToUTF8CString(property_name_ref, "headers")) {
// only support headers as an object for now.
if (js.JSObjectGetProperty(ctx, init_ref, property_name_ref, null)) |header_prop| {
switch (js.JSValueGetType(ctx, header_prop)) {
js.JSType.kJSTypeObject => {
const header_keys = js.JSObjectCopyPropertyNames(ctx, header_prop);
defer js.JSPropertyNameArrayRelease(header_keys);
const total_header_count = js.JSPropertyNameArrayGetCount(array);
if (total_header_count == 0) continue :upper;
// 2 passes through the headers
// Pass #1: find the "real" count.
// The number of things which are strings or numbers.
// Anything else should be ignored.
// We could throw a TypeError, but ignoring silently is more JavaScript-like imo
var real_header_count: usize = 0;
var estimated_buffer_len: usize = 0;
var j: usize = 0;
while (j < total_header_count) : (j += 1) {
var key_ref = js.JSPropertyNameArrayGetNameAtIndex(j);
var value_ref = js.JSObjectGetProperty(ctx, header_prop, key_ref, null);
switch (js.JSValueGetType(ctx, value_ref)) {
js.JSType.kJSTypeNumber => {
const key_len = js.JSStringGetLength(key_ref);
if (key_len > 0) {
real_header_count += 1;
estimated_buffer_len += key_len;
estimated_buffer_len += std.fmt.count("{d}", .{js.JSValueToNumber(ctx, value_ref, null)});
}
},
js.JSType.kJSTypeString => {
const value_len = js.JSStringGetLength(value_ref);
if (key_len > 0 and value_len > 0) {
real_header_count += 1;
estimated_buffer_len += key_len + value_len;
}
},
else => {},
}
}
if (real_header_count == 0 or estimated_buffer_len == 0) continue :upper;
j = 0;
var headers = Headers{
.buf = try std.ArrayList(u8).initCapacity(allocator, estimated_buffer_len),
.entries = std.mem.zeroes(Headers.Entries),
};
errdefer headers.deinit();
try headers.entries.ensureTotalCapacity(allocator, real_header_count);
while (j < total_header_count) : (j += 1) {
var key_ref = js.JSPropertyNameArrayGetNameAtIndex(j);
var value_ref = js.JSObjectGetProperty(ctx, header_prop, key_ref, null);
switch (js.JSValueGetType(ctx, value_ref)) {
js.JSType.kJSTypeNumber => {
if (js.JSStringGetLength(key_ref) == 0) continue;
try headers.append(ctx, key_ref, .kJSTypeNumber, value_ref);
},
js.JSType.kJSTypeString => {
if (js.JSStringGetLength(value_ref) == 0 or js.JSStringGetLength(key_ref) == 0) continue;
try headers.append(ctx, key_ref, .kJSTypeString, value_ref);
},
else => {},
}
}
result.headers = headers;
},
else => {},
}
}
}
},
"statusCode".len => {
if (js.JSStringIsEqualToUTF8CString(property_name_ref, "statusCode")) {
var value_ref = js.JSObjectGetProperty(ctx, header_prop, key_ref, null);
var exception: js.JSValueRef = null;
const number = js.JSValueToNumber(ctx, value_ref, &exception);
if (exception != null or !std.math.isFinite(number)) continue;
result.status_code = @truncate(u16, @floatToInt(u64, number));
}
},
else => {},
}
}
if (result.headers == null and result.status_code < 200) return null;
return result;
}
};
pub const Value = union(Tag) {
ArrayBuffer: ArrayBuffer,
String: string,
Empty: u0,
pub const Tag = enum {
ArrayBuffer,
String,
Empty,
};
};
pub fn @"404"(ctx: js.JSContextRef) Body {
return Body{ .init = Init{
.headers = null,
.status_code = 404,
}, .value = .{ .Empty = 0 } };
}
pub fn extract(ctx: js.JSContextRef, body_ref: js.JSObjectRef, exception: ExceptionValueRef) Body {
return extractBody(ctx, body_ref, false, null);
}
pub fn extractWithInit(ctx: js.JSContextRef, body_ref: js.JSObjectRef, init_ref: js.JSValueRef, exception: ExceptionValueRef) Body {
return extractBody(ctx, body_ref, true, init_ref);
}
// https://github.com/WebKit/webkit/blob/main/Source/WebCore/Modules/fetch/FetchBody.cpp#L45
inline fn extractBody(
ctx: js.JSContextRef,
body_ref: js.JSObjectRef,
comptime has_init: bool,
init_ref: js.JSValueRef,
exception: ExceptionValueRef,
) Body {
var body = Body{ .init = Init{ .headers = null, .status_code = 200 }, .value = .{ .Empty = 0 } };
switch (js.JSValueGetType(ctx, body_ref)) {
js.kJSTypeString => {
if (exception == null) {
var allocator = getAllocator(ctx);
if (has_init) {
body.init = Init.init(allocator, ctx, init_ref.?) catch unreachable;
}
const len = js.JSStringGetLength(body_ref);
if (len == 0) {
body.value = .{ .String = "" };
return body;
}
var str = try allocator.alloc(u8, len);
body.value = Value{ .String = str[0..js.JSStringGetUTF8CString(body_ref, str.ptr, len)] };
return body;
}
},
js.kJSTypeObject => {
const typed_array = js.JSValueGetTypedArrayType(ctx, body_ref, exception);
switch (typed_array) {
js.JSTypedArrayType.kJSTypedArrayTypeNone => {},
else => {
const buffer = ArrayBuffer{
.ptr = js.JSObjectGetTypedArrayBytesPtr(ctx, body_ref, exception),
.offset = js.JSObjectGetTypedArrayByteOffset(ctx, body_ref, exception),
.len = js.JSObjectGetTypedArrayLength(ctx, body_ref, exception),
.byte_len = js.JSObjectGetTypedArrayLength(ctx, body_ref, exception),
.typed_array_type = typed_array,
};
if (exception == null) {
if (has_init) {
body.init = Init.init(allocator, ctx, init_ref.?) catch unreachable;
}
body.value = Value{ .ArrayBuffer = buffer };
return body;
}
},
}
},
else => {},
}
if (exception == null) {
JSError(getAllocator(allocator), "Body must be a string or a TypedArray (for now)", .{}, ctx, exception);
}
return null;
}
};
pub const FetchEvent = struct {
started_waiting_at: u64 = 0,
response: ?*Response = null,
request_context: *http.RequestContext,
pub const Class = NewClass(
FetchEvent,
"FetchEvent",
.{ .@"respondWith" = respondWith, .@"waitUntil" = waitUntil },
.{
.@"client" = getClient,
.@"request" = getRequest,
},
true,
false,
);
};