Files
godot-vscode-plugin/src/debugger/godot3/debug_session.ts
David Kincaid 37bb1116fb Debugger Tool Improvements (#848)
A variety of debugger internal fixes + linter/style improvements
2025-07-31 15:17:33 -04:00

525 lines
14 KiB
TypeScript

import * as fs from "node:fs";
import {
Breakpoint,
InitializedEvent,
LoggingDebugSession,
Source,
TerminatedEvent,
Thread,
} from "@vscode/debugadapter";
import { DebugProtocol } from "@vscode/debugprotocol";
import { Subject } from "await-notify";
import { debug } from "vscode";
import { createLogger } from "../../utils";
import { GodotDebugData, GodotStackVars, GodotVariable } from "../debug_runtime";
import { AttachRequestArguments, LaunchRequestArguments } from "../debugger";
import { InspectorProvider } from "../inspector_provider";
import { SceneTreeProvider } from "../scene_tree_provider";
import { is_variable_built_in_type, parse_variable } from "./helpers";
import { ServerController } from "./server_controller";
import { ObjectId } from "./variables/variants";
const log = createLogger("debugger.session", { output: "Godot Debugger" });
interface Variable {
variable: GodotVariable;
index: number;
object_id: number;
}
export class GodotDebugSession extends LoggingDebugSession {
private all_scopes: GodotVariable[];
public controller = new ServerController(this);
public debug_data = new GodotDebugData(this);
public sceneTree: SceneTreeProvider;
public inspector: InspectorProvider;
private got_scope: Subject = new Subject();
private ongoing_inspections: bigint[] = [];
private previous_inspections: bigint[] = [];
private configuration_done: Subject = new Subject();
private mode: "launch" | "attach" | "" = "";
public inspect_callbacks: Map<bigint, (class_name: string, variable: GodotVariable) => void> = new Map();
public constructor() {
super();
this.setDebuggerLinesStartAt1(false);
this.setDebuggerColumnsStartAt1(false);
}
public dispose() {
this.controller.stop();
}
protected initializeRequest(
response: DebugProtocol.InitializeResponse,
args: DebugProtocol.InitializeRequestArguments,
) {
response.body = response.body || {};
response.body.supportsConfigurationDoneRequest = true;
response.body.supportsTerminateRequest = true;
response.body.supportsEvaluateForHovers = false;
response.body.supportsStepBack = false;
response.body.supportsGotoTargetsRequest = false;
response.body.supportsCancelRequest = false;
response.body.supportsCompletionsRequest = false;
response.body.supportsFunctionBreakpoints = false;
response.body.supportsDataBreakpoints = false;
response.body.supportsBreakpointLocationsRequest = false;
response.body.supportsConditionalBreakpoints = false;
response.body.supportsHitConditionalBreakpoints = false;
response.body.supportsLogPoints = false;
response.body.supportsModulesRequest = false;
response.body.supportsReadMemoryRequest = false;
response.body.supportsRestartFrame = false;
response.body.supportsRestartRequest = false;
response.body.supportsSetExpression = false;
response.body.supportsStepInTargetsRequest = false;
response.body.supportsTerminateThreadsRequest = false;
this.sendResponse(response);
this.sendEvent(new InitializedEvent());
}
protected async launchRequest(response: DebugProtocol.LaunchResponse, args: LaunchRequestArguments) {
await this.configuration_done.wait(1000);
this.mode = "launch";
this.debug_data.projectPath = args.project;
await this.controller.launch(args);
this.sendResponse(response);
}
protected async attachRequest(response: DebugProtocol.AttachResponse, args: AttachRequestArguments) {
await this.configuration_done.wait(1000);
this.mode = "attach";
await this.controller.attach(args);
this.sendResponse(response);
}
public configurationDoneRequest(
response: DebugProtocol.ConfigurationDoneResponse,
args: DebugProtocol.ConfigurationDoneArguments,
) {
this.configuration_done.notify();
this.sendResponse(response);
}
protected continueRequest(response: DebugProtocol.ContinueResponse, args: DebugProtocol.ContinueArguments) {
response.body = { allThreadsContinued: true };
this.controller.continue();
this.sendResponse(response);
}
protected async evaluateRequest(response: DebugProtocol.EvaluateResponse, args: DebugProtocol.EvaluateArguments) {
await debug.activeDebugSession.customRequest("scopes", { frameId: 0 });
if (this.all_scopes) {
try {
const variable = this.get_variable(args.expression, null, null, null);
const parsed_variable = parse_variable(variable.variable);
response.body = {
result: parsed_variable.value,
variablesReference: !is_variable_built_in_type(variable.variable) ? variable.index : 0,
};
} catch (error) {
response.success = false;
response.message = error.toString();
}
}
if (!response.body) {
response.body = {
result: "null",
variablesReference: 0,
};
}
this.sendResponse(response);
}
protected nextRequest(response: DebugProtocol.NextResponse, args: DebugProtocol.NextArguments) {
this.controller.next();
this.sendResponse(response);
}
protected pauseRequest(response: DebugProtocol.PauseResponse, args: DebugProtocol.PauseArguments) {
this.controller.break();
this.sendResponse(response);
}
protected async scopesRequest(response: DebugProtocol.ScopesResponse, args: DebugProtocol.ScopesArguments) {
this.controller.request_stack_frame_vars(args.frameId);
await this.got_scope.wait(2000);
response.body = {
scopes: [
{ name: "Locals", variablesReference: 1, expensive: false },
{ name: "Members", variablesReference: 2, expensive: false },
{ name: "Globals", variablesReference: 3, expensive: false },
],
};
this.sendResponse(response);
}
protected setBreakPointsRequest(
response: DebugProtocol.SetBreakpointsResponse,
args: DebugProtocol.SetBreakpointsArguments,
) {
const path = (args.source.path as string).replace(/\\/g, "/");
const client_lines = args.lines || [];
if (fs.existsSync(path)) {
let bps = this.debug_data.get_breakpoints(path);
const bp_lines = bps.map((bp) => bp.line);
for (const bp of bps) {
if (client_lines.indexOf(bp.line) === -1) {
this.debug_data.remove_breakpoint(path, bp.line);
}
}
for (const l of client_lines) {
if (bp_lines.indexOf(l) === -1) {
const bp = args.breakpoints.find((bp_at_line) => bp_at_line.line === l);
if (!bp.condition) {
this.debug_data.set_breakpoint(path, l);
}
}
}
bps = this.debug_data.get_breakpoints(path);
// Sort to ensure breakpoints aren't out-of-order, which would confuse VS Code.
bps.sort((a, b) => (a.line < b.line ? -1 : 1));
response.body = {
breakpoints: bps.map((bp) => {
return new Breakpoint(true, bp.line, 1, new Source(bp.file.split("/").reverse()[0], bp.file));
}),
};
this.sendResponse(response);
}
}
protected stackTraceRequest(response: DebugProtocol.StackTraceResponse, args: DebugProtocol.StackTraceArguments) {
if (this.debug_data.last_frame) {
response.body = {
totalFrames: this.debug_data.last_frames.length,
stackFrames: this.debug_data.last_frames.map((sf) => {
return {
id: sf.id,
name: sf.function,
line: sf.line,
column: 1,
source: new Source(sf.file, `${this.debug_data.projectPath}/${sf.file.replace("res://", "")}`),
};
}),
};
}
this.sendResponse(response);
}
protected stepInRequest(response: DebugProtocol.StepInResponse, args: DebugProtocol.StepInArguments) {
this.controller.step();
this.sendResponse(response);
}
protected stepOutRequest(response: DebugProtocol.StepOutResponse, args: DebugProtocol.StepOutArguments) {
this.controller.step_out();
this.sendResponse(response);
}
protected terminateRequest(response: DebugProtocol.TerminateResponse, args: DebugProtocol.TerminateArguments) {
if (this.mode === "launch") {
this.controller.stop();
this.sendEvent(new TerminatedEvent());
}
this.sendResponse(response);
}
protected threadsRequest(response: DebugProtocol.ThreadsResponse) {
response.body = { threads: [new Thread(0, "thread_1")] };
this.sendResponse(response);
}
protected async variablesRequest(
response: DebugProtocol.VariablesResponse,
args: DebugProtocol.VariablesArguments,
) {
if (!this.all_scopes) {
response.body = {
variables: [],
};
this.sendResponse(response);
return;
}
const reference = this.all_scopes[args.variablesReference];
let variables: DebugProtocol.Variable[];
if (!reference.sub_values) {
variables = [];
} else {
variables = reference.sub_values.map((va) => {
const sva = this.all_scopes.find(
(sva) => sva && sva.scope_path === va.scope_path && sva.name === va.name,
);
if (sva) {
return parse_variable(
sva,
this.all_scopes.findIndex(
(va_idx) =>
va_idx &&
va_idx.scope_path === `${reference.scope_path}.${reference.name}` &&
va_idx.name === va.name,
),
);
}
});
}
response.body = {
variables: variables,
};
this.sendResponse(response);
}
public set_scopes(stackVars: GodotStackVars) {
this.all_scopes = [
undefined,
{
name: "local",
value: undefined,
sub_values: stackVars.locals,
scope_path: "@",
},
{
name: "member",
value: undefined,
sub_values: stackVars.members,
scope_path: "@",
},
{
name: "global",
value: undefined,
sub_values: stackVars.globals,
scope_path: "@",
},
];
for (const va of stackVars.locals) {
va.scope_path = "@.local";
this.append_variable(va);
}
for (const va of stackVars.members) {
va.scope_path = "@.member";
this.append_variable(va);
}
for (const va of stackVars.globals) {
va.scope_path = "@.global";
this.append_variable(va);
}
this.add_to_inspections();
if (this.ongoing_inspections.length === 0) {
this.previous_inspections = [];
this.got_scope.notify();
}
}
public set_inspection(id: bigint, replacement: GodotVariable) {
const variables = this.all_scopes.filter((va) => va && va.value instanceof ObjectId && va.value.id === id);
for (const va of variables) {
const index = this.all_scopes.findIndex((va_id) => va_id === va);
const old = this.all_scopes.splice(index, 1);
replacement.name = old[0].name;
replacement.scope_path = old[0].scope_path;
this.append_variable(replacement, index);
}
this.ongoing_inspections.splice(
this.ongoing_inspections.findIndex((va_id) => va_id === id),
1,
);
this.previous_inspections.push(id);
// this.add_to_inspections();
if (this.ongoing_inspections.length === 0) {
this.previous_inspections = [];
this.got_scope.notify();
}
}
private add_to_inspections() {
for (const va of this.all_scopes) {
if (va && va.value instanceof ObjectId) {
if (
!this.ongoing_inspections.includes(va.value.id) &&
!this.previous_inspections.includes(va.value.id)
) {
this.controller.request_inspect_object(va.value.id);
this.ongoing_inspections.push(va.value.id);
}
}
}
}
protected get_variable(
expression: string,
root: GodotVariable = null,
index = 0,
object_id: number = null,
): Variable {
let result: Variable = {
variable: null,
index: null,
object_id: null,
};
if (!root) {
if (!expression.includes("self")) {
expression = `self.${expression}`;
}
root = this.all_scopes.find((x) => x && x.name === "self");
object_id = this.all_scopes.find((x) => x && x.name === "id" && x.scope_path === "@.member.self").value;
}
const items = expression.split(".");
let propertyName = items[index + 1];
let path = items
.slice(0, index + 1)
.join(".")
.split("self.")
.join("")
.split("self")
.join("")
.split("[")
.join(".")
.split("]")
.join("");
if (items.length === 1 && items[0] === "self") {
propertyName = "self";
}
// Detect index/key
let key = (propertyName.match(/(?<=\[).*(?=\])/) || [null])[0];
if (key) {
key = key.replace(/['"]+/g, "");
propertyName = propertyName
.split(/(?<=\[).*(?=\])/)
.join("")
.split("[]")
.join("");
if (path) path += ".";
path += propertyName;
propertyName = key;
}
function sanitizeName(name: string) {
return name.split("Members/").join("").split("Locals/").join("");
}
function sanitizeScopePath(scope_path: string) {
return scope_path
.split("@.member.self.")
.join("")
.split("@.member.self")
.join("")
.split("@.member.")
.join("")
.split("@.member")
.join("")
.split("@.local.")
.join("")
.split("@.local")
.join("")
.split("Locals/")
.join("")
.split("Members/")
.join("")
.split("@")
.join("");
}
const sanitized_all_scopes = this.all_scopes
.filter((x) => x)
.map((x) => ({
sanitized: {
name: sanitizeName(x.name),
scope_path: sanitizeScopePath(x.scope_path),
},
real: x,
}));
result.variable = sanitized_all_scopes.find(
(x) => x.sanitized.name === propertyName && x.sanitized.scope_path === path,
)?.real;
if (!result.variable) {
throw new Error(`Could not find: ${propertyName}`);
}
if (root.value.entries) {
if (result.variable.name === "self") {
result.object_id = this.all_scopes.find(
(x) => x && x.name === "id" && x.scope_path === "@.member.self",
).value;
} else if (key) {
const collection = path.split(".")[path.split(".").length - 1];
const collection_items = Array.from(root.value.entries()).find(
(x) => x && x[0].split("Members/").join("").split("Locals/").join("") === collection,
)[1];
result.object_id = collection_items.get ? collection_items.get(key)?.id : collection_items[key]?.id;
} else {
const item = Array.from(root.value.entries()).find(
(x) => x && x[0].split("Members/").join("").split("Locals/").join("") === propertyName,
);
result.object_id = item?.[1].id;
}
}
if (!result.object_id) {
result.object_id = object_id;
}
result.index = this.all_scopes.findIndex(
(x) => x && x.name === result.variable.name && x.scope_path === result.variable.scope_path,
);
if (items.length > 2 && index < items.length - 2) {
result = this.get_variable(items.join("."), result.variable, index + 1, result.object_id);
}
return result;
}
private append_variable(variable: GodotVariable, index?: number) {
if (index) {
this.all_scopes.splice(index, 0, variable);
} else {
this.all_scopes.push(variable);
}
const base_path = `${variable.scope_path}.${variable.name}`;
if (variable.sub_values) {
variable.sub_values.forEach((va, i) => {
va.scope_path = base_path;
this.append_variable(va, index ? index + i + 1 : undefined);
});
}
}
}