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Fixes the scoping of page.current_script

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This was previously being set back to null before it was actually needed.

Also, added a more logs / log details.
This commit is contained in:
Karl Seguin
2025-06-18 18:35:10 +08:00
parent 8033e41d4a
commit d05619990a
2 changed files with 65 additions and 11 deletions
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43
src/browser/page.zig
View File

@@ -151,16 +151,29 @@ pub const Page = struct {
const self: *Page = @ptrCast(@alignCast(ctx));
const base = if (self.current_script) |s| s.src else null;
const file_src = blk: {
const src = blk: {
if (base) |_base| {
break :blk try URL.stitch(self.arena, specifier, _base, .{});
} else break :blk specifier;
};
if (self.module_map.get(file_src)) |module| return module;
if (self.module_map.get(src)) |module| {
log.debug(.http, "fetching module", .{
.src = src,
.cached = true,
});
return module;
}
log.debug(.http, "fetching module", .{
.src = src,
.base = base,
.cached = false,
.specifier = specifier,
});
const module = try self.fetchData(specifier, base);
if (module) |_module| try self.module_map.putNoClobber(self.arena, file_src, _module);
if (module) |_module| try self.module_map.putNoClobber(self.arena, src, _module);
return module;
}
@@ -461,9 +474,9 @@ pub const Page = struct {
};
var script_source: ?[]const u8 = null;
defer self.current_script = null;
if (script.src) |src| {
self.current_script = script;
defer self.current_script = null;
// https://html.spec.whatwg.org/multipage/webappapis.html#fetch-a-classic-script
script_source = (try self.fetchData(src, null)) orelse {
@@ -507,8 +520,18 @@ pub const Page = struct {
var origin_url = &self.url;
const url = try origin_url.resolve(arena, res_src);
log.debug(.http, "fetching script", .{ .url = url });
errdefer |err| log.err(.http, "fetch error", .{ .err = err, .url = url });
var status_code: u16 = 0;
log.debug(.http, "fetching script", .{
.url = url,
.src = src,
.base = base,
});
errdefer |err| log.err(.http, "fetch error", .{
.err = err,
.url = url,
.status = status_code,
});
var request = try self.newHTTPRequest(.GET, &url, .{
.origin_uri = &origin_url.uri,
@@ -521,7 +544,8 @@ pub const Page = struct {
var header = response.header;
try self.session.cookie_jar.populateFromResponse(&url.uri, &header);
if (header.status < 200 or header.status > 299) {
status_code = header.status;
if (status_code < 200 or status_code > 299) {
return error.BadStatusCode;
}
@@ -539,7 +563,7 @@ pub const Page = struct {
log.info(.http, "fetch complete", .{
.url = url,
.status = header.status,
.status = status_code,
.content_length = arr.items.len,
});
return arr.items;
@@ -1002,6 +1026,9 @@ const Script = struct {
defer try_catch.deinit();
const src = self.src orelse "inline";
log.debug(.browser, "executing script", .{ .src = src, .kind = self.kind });
_ = switch (self.kind) {
.javascript => page.main_context.exec(body, src),
.module => blk: {

33
src/runtime/js.zig
View File

@@ -1158,7 +1158,7 @@ pub fn Env(comptime State: type, comptime WebApis: type) type {
}
if (!js_value.isArray()) {
return .{.invalid = {}};
return .{ .invalid = {} };
}
// This can get tricky.
@@ -1227,12 +1227,25 @@ pub fn Env(comptime State: type, comptime WebApis: type) type {
// const referrer_module = if (referrer) |ref| v8.Module{ .handle = ref } else null;
const module_loader = self.module_loader;
const source = module_loader.func(module_loader.ptr, specifier) catch |err| {
log.err(.js, "resolve module fetch error", .{ .specifier = specifier, .err = err });
log.err(.js, "resolve module fetch", .{
.err = err,
.specifier = specifier,
});
return null;
} orelse return null;
var try_catch: TryCatch = undefined;
try_catch.init(self);
defer try_catch.deinit();
const m = compileModule(self.isolate, source, specifier) catch |err| {
log.err(.js, "resolve module compile error", .{ .specifier = specifier, .err = err });
log.err(.js, "resolve module compile", .{
.specifier = specifier,
.stack = try_catch.stack(self.context_arena) catch null,
.src = try_catch.sourceLine(self.context_arena) catch "err",
.line = try_catch.sourceLineNumber() orelse 0,
.exception = (try_catch.exception(self.context_arena) catch @errorName(err)) orelse @errorName(err),
});
return null;
};
return m.handle;
@@ -1547,6 +1560,20 @@ pub fn Env(comptime State: type, comptime WebApis: type) type {
return try valueToString(allocator, s, js_context.isolate, js_context.v8_context);
}
// the caller needs to deinit the string returned
pub fn sourceLine(self: TryCatch, allocator: Allocator) !?[]const u8 {
const js_context = self.js_context;
const msg = self.inner.getMessage() orelse return null;
const sl = msg.getSourceLine(js_context.v8_context) orelse return null;
return try jsStringToZig(allocator, sl, js_context.isolate);
}
pub fn sourceLineNumber(self: TryCatch) ?u32 {
const js_context = self.js_context;
const msg = self.inner.getMessage() orelse return null;
return msg.getLineNumber(js_context.v8_context);
}
// a shorthand method to return either the entire stack message
// or just the exception message
// - in Debug mode return the stack if available