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port TryCatch

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This commit is contained in:
Karl Seguin
2025-12-31 14:44:59 +08:00
parent a5038893fe
commit 93f0d24673
1 changed files with 25 additions and 18 deletions
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43
src/browser/js/TryCatch.zig
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@@ -24,43 +24,50 @@ const Allocator = std.mem.Allocator;
const TryCatch = @This();
inner: v8.TryCatch,
context: *const js.Context,
handle: v8.c.TryCatch,
ctx: *const js.Context,
pub fn init(self: *TryCatch, context: *const js.Context) void {
self.context = context;
self.inner.init(context.isolate);
self.ctx = context;
v8.c.v8__TryCatch__CONSTRUCT(&self.handle, context.isolate.handle);
}
pub fn hasCaught(self: TryCatch) bool {
return self.inner.hasCaught();
return v8.c.v8__TryCatch__HasCaught(&self.handle);
}
// the caller needs to deinit the string returned
pub fn exception(self: TryCatch, allocator: Allocator) !?[]const u8 {
const msg = self.inner.getException() orelse return null;
return try self.context.valueToString(msg, .{ .allocator = allocator });
const msg_value = v8.c.v8__TryCatch__Exception(&self.handle) orelse return null;
const msg = v8.Value{ .handle = msg_value };
return try self.ctx.valueToString(msg, .{ .allocator = allocator });
}
// the caller needs to deinit the string returned
pub fn stack(self: TryCatch, allocator: Allocator) !?[]const u8 {
const context = self.context;
const s = self.inner.getStackTrace(context.v8_context) orelse return null;
return try context.valueToString(s, .{ .allocator = allocator });
const ctx = self.ctx;
const s_value = v8.c.v8__TryCatch__StackTrace(&self.handle, ctx.v8_context.handle) orelse return null;
const s = v8.Value{ .handle = s_value };
return try ctx.valueToString(s, .{ .allocator = allocator });
}
// the caller needs to deinit the string returned
pub fn sourceLine(self: TryCatch, allocator: Allocator) !?[]const u8 {
const context = self.context;
const msg = self.inner.getMessage() orelse return null;
const sl = msg.getSourceLine(context.v8_context) orelse return null;
return try context.jsStringToZig(sl, .{ .allocator = allocator });
const ctx = self.ctx;
const msg = v8.c.v8__TryCatch__Message(&self.handle) orelse return null;
const sl = v8.c.v8__Message__GetSourceLine(msg, ctx.v8_context.handle) orelse return null;
const sl_string = v8.String{ .handle = sl };
return try ctx.jsStringToZig(sl_string, .{ .allocator = allocator });
}
pub fn sourceLineNumber(self: TryCatch) ?u32 {
const context = self.context;
const msg = self.inner.getMessage() orelse return null;
return msg.getLineNumber(context.v8_context);
const ctx = self.ctx;
const msg = v8.c.v8__TryCatch__Message(&self.handle) orelse return null;
const line = v8.c.v8__Message__GetLineNumber(msg, ctx.v8_context.handle);
if (line < 0) {
return null;
}
return @intCast(line);
}
// a shorthand method to return either the entire stack message
@@ -78,5 +85,5 @@ pub fn err(self: TryCatch, allocator: Allocator) !?[]const u8 {
}
pub fn deinit(self: *TryCatch) void {
self.inner.deinit();
v8.c.v8__TryCatch__DESTRUCT(&self.handle);
}