tiny.zen.ThemeRenderPlan

1pub const Plan = struct {2    layout_bytes: usize,3    placeholders: usize,4    output_bytes: usize,56    pub fn inspect(active: model.Theme, page: model.Page, limits: Limits) model.Error!Plan {7        var placeholders: usize = 0;8        var output_bytes: usize = 0;9        var iterator = scan.Iterator.init(active.layout);10        while (try iterator.next()) |event| switch (event) {11            .literal => |literal| output_bytes = try addOutput(12                output_bytes,13                literal.len,14                limits.max_output_bytes,15            ),16            .placeholder => |key| {17                placeholders = try added(placeholders, 1);18                const resolved = try value.resolve(active, page, key);19                const bytes = switch (resolved.encoding) {20                    .raw => resolved.text.len,21                    .escaped => try html.escapedLength(resolved.text),22                };23                output_bytes = try addOutput(24                    output_bytes,25                    bytes,26                    limits.max_output_bytes,27                );28            },29        };30        return .{31            .layout_bytes = active.layout.len,32            .placeholders = placeholders,33            .output_bytes = output_bytes,34        };35    }3637    pub fn exactLimits(self: Plan) Limits {38        return .{ .max_output_bytes = self.output_bytes };39    }4041    pub fn require(self: Plan, limits: Limits) model.Exhaustion!void {42        if (self.output_bytes > limits.max_output_bytes) {43            return error.ThemeOutputByteCapacityExceeded;44        }45    }46};

1/// Exact themed-page byte demand measured before storage acquisition.2pub const ThemeRenderPlan = theme.RenderPlan;