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feat(cursor): namespace FIELD constants and implement true streaming SSE (#531, #535)

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This commit is contained in:
Tam Nhu Tran
2026-02-13 04:12:29 +07:00
parent 52e04f5cf3
commit 4e5b502fc9
7 changed files with 773 additions and 229 deletions
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src/cursor/cursor-protobuf-decoder.ts
+26 -26
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@@ -160,8 +160,8 @@ function extractToolCall(toolCallData: Uint8Array): {
let isLast = false;
// Extract tool call ID
if (toolCall.has(FIELD.TOOL_ID)) {
const idField = toolCall.get(FIELD.TOOL_ID);
if (toolCall.has(FIELD.ToolCall.ID)) {
const idField = toolCall.get(FIELD.ToolCall.ID);
if (idField && idField[0]) {
const fullId = new TextDecoder().decode(idField[0].value as Uint8Array);
toolCallId = fullId.split('\n')[0]; // Take first line
@@ -169,44 +169,44 @@ function extractToolCall(toolCallData: Uint8Array): {
}
// Extract tool name
if (toolCall.has(FIELD.TOOL_NAME)) {
const nameField = toolCall.get(FIELD.TOOL_NAME);
if (toolCall.has(FIELD.ToolCall.NAME)) {
const nameField = toolCall.get(FIELD.ToolCall.NAME);
if (nameField && nameField[0]) {
toolName = new TextDecoder().decode(nameField[0].value as Uint8Array);
}
}
// Extract is_last flag
if (toolCall.has(FIELD.TOOL_IS_LAST)) {
const lastField = toolCall.get(FIELD.TOOL_IS_LAST);
if (toolCall.has(FIELD.ToolCall.IS_LAST)) {
const lastField = toolCall.get(FIELD.ToolCall.IS_LAST);
if (lastField && lastField[0]) {
isLast = (lastField[0].value as number) !== 0;
}
}
// Extract MCP params - nested real tool info
if (toolCall.has(FIELD.TOOL_MCP_PARAMS)) {
if (toolCall.has(FIELD.ToolCall.MCP_PARAMS)) {
try {
const mcpField = toolCall.get(FIELD.TOOL_MCP_PARAMS);
const mcpField = toolCall.get(FIELD.ToolCall.MCP_PARAMS);
if (!mcpField || !mcpField[0]) return null;
const mcpParams = decodeMessage(mcpField[0].value as Uint8Array);
if (mcpParams.has(FIELD.MCP_TOOLS_LIST)) {
const toolsList = mcpParams.get(FIELD.MCP_TOOLS_LIST);
if (mcpParams.has(FIELD.McpParams.TOOLS_LIST)) {
const toolsList = mcpParams.get(FIELD.McpParams.TOOLS_LIST);
if (!toolsList || !toolsList[0]) return null;
const tool = decodeMessage(toolsList[0].value as Uint8Array);
if (tool.has(FIELD.MCP_NESTED_NAME)) {
const nestedName = tool.get(FIELD.MCP_NESTED_NAME);
if (tool.has(FIELD.McpNested.NAME)) {
const nestedName = tool.get(FIELD.McpNested.NAME);
if (nestedName && nestedName[0]) {
toolName = new TextDecoder().decode(nestedName[0].value as Uint8Array);
}
}
if (tool.has(FIELD.MCP_NESTED_PARAMS)) {
const nestedParams = tool.get(FIELD.MCP_NESTED_PARAMS);
if (tool.has(FIELD.McpNested.PARAMS)) {
const nestedParams = tool.get(FIELD.McpNested.PARAMS);
if (nestedParams && nestedParams[0]) {
rawArgs = new TextDecoder().decode(nestedParams[0].value as Uint8Array);
}
@@ -221,8 +221,8 @@ function extractToolCall(toolCallData: Uint8Array): {
}
// Fallback to raw_args
if (!rawArgs && toolCall.has(FIELD.TOOL_RAW_ARGS)) {
const rawArgsField = toolCall.get(FIELD.TOOL_RAW_ARGS);
if (!rawArgs && toolCall.has(FIELD.ToolCall.RAW_ARGS)) {
const rawArgsField = toolCall.get(FIELD.ToolCall.RAW_ARGS);
if (rawArgsField && rawArgsField[0]) {
rawArgs = new TextDecoder().decode(rawArgsField[0].value as Uint8Array);
}
@@ -255,21 +255,21 @@ function extractTextAndThinking(responseData: Uint8Array): {
let thinking: string | null = null;
// Extract text
if (nested.has(FIELD.RESPONSE_TEXT)) {
const textField = nested.get(FIELD.RESPONSE_TEXT);
if (nested.has(FIELD.ChatResponse.TEXT)) {
const textField = nested.get(FIELD.ChatResponse.TEXT);
if (textField && textField[0]) {
text = new TextDecoder().decode(textField[0].value as Uint8Array);
}
}
// Extract thinking
if (nested.has(FIELD.THINKING)) {
if (nested.has(FIELD.ChatResponse.THINKING)) {
try {
const thinkingField = nested.get(FIELD.THINKING);
const thinkingField = nested.get(FIELD.ChatResponse.THINKING);
if (thinkingField && thinkingField[0]) {
const thinkingMsg = decodeMessage(thinkingField[0].value as Uint8Array);
if (thinkingMsg.has(FIELD.THINKING_TEXT)) {
const thinkingTextField = thinkingMsg.get(FIELD.THINKING_TEXT);
if (thinkingMsg.has(FIELD.Thinking.TEXT)) {
const thinkingTextField = thinkingMsg.get(FIELD.Thinking.TEXT);
if (thinkingTextField && thinkingTextField[0]) {
thinking = new TextDecoder().decode(thinkingTextField[0].value as Uint8Array);
}
@@ -304,8 +304,8 @@ export function extractTextFromResponse(payload: Uint8Array): {
const fields = decodeMessage(payload);
// Field 1: ClientSideToolV2Call
if (fields.has(FIELD.TOOL_CALL)) {
const toolCallField = fields.get(FIELD.TOOL_CALL);
if (fields.has(FIELD.Response.TOOL_CALL)) {
const toolCallField = fields.get(FIELD.Response.TOOL_CALL);
if (toolCallField && toolCallField[0]) {
const toolCall = extractToolCall(toolCallField[0].value as Uint8Array);
if (toolCall) {
@@ -315,8 +315,8 @@ export function extractTextFromResponse(payload: Uint8Array): {
}
// Field 2: StreamUnifiedChatResponse
if (fields.has(FIELD.RESPONSE)) {
const responseField = fields.get(FIELD.RESPONSE);
if (fields.has(FIELD.Response.RESPONSE)) {
const responseField = fields.get(FIELD.Response.RESPONSE);
if (responseField && responseField[0]) {
const { text, thinking } = extractTextAndThinking(responseField[0].value as Uint8Array);