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Merge pull request #579 from lightpanda-io/console
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Browse Source 
add console web api
This commit is contained in:
Karl Seguin
2025-05-01 09:50:37 +08:00
committed by GitHub
parent 47c14db54c cb7c8502b0
commit d05063ec61
4 changed files with 268 additions and 8 deletions
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47
src/runtime/js.zig
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@@ -416,6 +416,16 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
}
errdefer if (enter) handle_scope.?.deinit();
{
// If we want to overwrite the built-in console, we have to
// delete the built-in one.
const js_obj = context.getGlobal();
const console_key = v8.String.initUtf8(isolate, "console");
if (js_obj.deleteValue(context, console_key) == false) {
return error.ConsoleDeleteError;
}
}
self.scope = Scope{
.state = state,
.isolate = isolate,
@@ -439,6 +449,16 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
context.setEmbedderData(1, data);
}
{
// Not the prettiest but we want to make the `call_arena`
// optionally available to the WebAPIs. If `state` has a
// call_arena field, fill-it in now.
const state_type_info = @typeInfo(@TypeOf(state));
if (state_type_info == .pointer and @hasField(state_type_info.pointer.child, "call_arena")) {
scope.state.call_arena = scope.call_arena;
}
}
// Custom exception
// NOTE: there is no way in v8 to subclass the Error built-in type
// TODO: this is an horrible hack
@@ -880,6 +900,21 @@ pub fn Env(comptime S: type, comptime types: anytype) type {
return error.FailedToSet;
}
}
pub fn isTruthy(self: JsObject) bool {
const js_value = self.js_obj.toValue();
return js_value.toBool(self.scope.isolate);
}
pub fn toString(self: JsObject) ![]const u8 {
const scope = self.scope;
const js_value = self.js_obj.toValue();
return valueToString(scope.call_arena, js_value, scope.isolate, scope.context);
}
pub fn format(self: JsObject, comptime _: []const u8, _: std.fmt.FormatOptions, writer: anytype) !void {
return writer.writeAll(try self.toString());
}
};
// This only exists so that we know whether a function wants the opaque
@@ -1995,13 +2030,15 @@ fn Caller(comptime E: type) type {
is_variadic = true;
if (js_parameter_count == 0) {
@field(args, tupleFieldName(params_to_map.len + offset - 1)) = &.{};
} else {
} else if (js_parameter_count >= params_to_map.len) {
const arr = try self.call_arena.alloc(last_parameter_type_info.pointer.child, js_parameter_count - params_to_map.len + 1);
for (arr, last_js_parameter..) |*a, i| {
const js_value = info.getArg(@as(u32, @intCast(i)));
a.* = try self.jsValueToZig(named_function, slice_type, js_value);
}
@field(args, tupleFieldName(params_to_map.len + offset - 1)) = arr;
} else {
@field(args, tupleFieldName(params_to_map.len + offset - 1)) = &.{};
}
}
}
@@ -2173,10 +2210,6 @@ fn Caller(comptime E: type) type {
};
}
if (!js_value.isObject()) {
return error.InvalidArgument;
}
const js_obj = js_value.castTo(v8.Object);
if (comptime isJsObject(T)) {
@@ -2188,6 +2221,10 @@ fn Caller(comptime E: type) type {
};
}
if (!js_value.isObject()) {
return error.InvalidArgument;
}
const context = self.context;
const isolate = self.isolate;