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source dump of claude code
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1.6 kB · 51 lines
TypeScript
at main
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152/** * Utility for inserting a block into a content array relative to tool_result * blocks. Used by the API layer to position supplementary content (e.g., * cache editing directives) correctly within user messages. * * Placement rules: * - If tool_result blocks exist: insert after the last one * - Otherwise: insert before the last block * - If the inserted block would be the final element, a text continuation * block is appended (some APIs require the prompt not to end with * non-text content) */
/** * Inserts a block into the content array after the last tool_result block. * Mutates the array in place. * * @param content - The content array to modify * @param block - The block to insert */export function insertBlockAfterToolResults( content: unknown[], block: unknown,): void { // Find position after the last tool_result block let lastToolResultIndex = -1 for (let i = 0; i < content.length; i++) { const item = content[i] if ( item && typeof item === 'object' && 'type' in item && (item as { type: string }).type === 'tool_result' ) { lastToolResultIndex = i } }
if (lastToolResultIndex >= 0) { const insertPos = lastToolResultIndex + 1 content.splice(insertPos, 0, block) // Append a text continuation if the inserted block is now last if (insertPos === content.length - 1) { content.push({ type: 'text', text: '.' }) } } else { // No tool_result blocks — insert before the last block const insertIndex = Math.max(0, content.length - 1) content.splice(insertIndex, 0, block) }}