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@@ -194,7 +194,7 @@ export interface Config {
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*/
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export function renderPrompt(assembly: PromptAssembly): string {
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return assembly.sections
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- .map(section => interpolate(section, assembly.variables))
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+ .map(section => interpolate(section, assembly.variables, 'section'))
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.filter(text => text.length > 0)
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.join('\n\n')
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}
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@@ -209,16 +209,20 @@ export function renderPrompt(assembly: PromptAssembly): string {
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*/
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export function renderContextSnapshot(assembly: PromptAssembly): string {
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const body = assembly.contexts
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- .map(context => interpolate(context, assembly.variables))
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+ .map(context => interpolate(context, assembly.variables, 'context'))
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.filter(text => text.length > 0)
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.join('\n\n')
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if (body.length === 0) return ''
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return `Current runtime context. This snapshot supersedes earlier runtime-context snapshots.\n\n${body}`
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}
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-/** Interpolate one section's `{{variable}}` references (see {@link renderPrompt}). */
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-function interpolate(section: AssembledSection, variables: Record<string, string | undefined>): string {
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- const text = section.text
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+/** Interpolate one section or context and attribute diagnostics to its owning input. */
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+function interpolate(
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+ input: AssembledSection | AssembledContext,
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+ variables: Record<string, string | undefined>,
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+ kind: 'section' | 'context',
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+): string {
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+ const text = input.text
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let result = ''
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let last = 0
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for (let open = text.indexOf('{{'); open >= 0; open = text.indexOf('{{', last)) {
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@@ -226,7 +230,7 @@ function interpolate(section: AssembledSection, variables: Record<string, string
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if (group === null) {
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// A later closing brace makes this malformed; otherwise it is literal prose.
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if (text.indexOf('}}', open + 2) >= 0) {
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- throw new Error(`malformed prompt variable reference at "${text.slice(open, open + 16)}…" in section "${section.name}" (references are complete simple {{name}} groups)`)
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+ throw new Error(`malformed prompt variable reference at "${text.slice(open, open + 16)}…" in ${kind} "${input.name}" (references are complete simple {{name}} groups)`)
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}
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result += text.slice(last, open + 2)
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last = open + 2
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@@ -235,16 +239,16 @@ function interpolate(section: AssembledSection, variables: Record<string, string
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// `{{}}` yields an empty name and follows the malformed-reference path.
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const name = group[0].slice(2, -2)
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if (!VARIABLE_NAME.test(name)) {
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- throw new Error(`malformed prompt variable reference "{{${name}}}" in section "${section.name}" (variable names match ${String(VARIABLE_NAME)})`)
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+ throw new Error(`malformed prompt variable reference "{{${name}}}" in ${kind} "${input.name}" (variable names match ${String(VARIABLE_NAME)})`)
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}
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// Do not resolve unregistered names through Object.prototype.
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if (!Object.hasOwn(variables, name)) {
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const known = Object.keys(variables)
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- throw new Error(`unknown prompt variable "{{${name}}}" in section "${section.name}"; registered variables: ${known.length > 0 ? known.join(', ') : '(none)'}`)
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+ throw new Error(`unknown prompt variable "{{${name}}}" in ${kind} "${input.name}"; registered variables: ${known.length > 0 ? known.join(', ') : '(none)'}`)
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}
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const value = variables[name]
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if (value === undefined) {
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- throw new Error(`prompt variable "{{${name}}}" has no value for this assembly (section "${section.name}")`)
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+ throw new Error(`prompt variable "{{${name}}}" has no value for this assembly (${kind} "${input.name}")`)
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}
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result += text.slice(last, open) + value
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last = open + group[0].length
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NI0317