63 lines
2.3 KiB
Swift
63 lines
2.3 KiB
Swift
/// Context while rendering mustache tokens
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struct HBMustacheContext {
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let stack: [Any]
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let sequenceContext: HBMustacheSequenceContext?
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let indentation: String?
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let inherited: [String: HBMustacheTemplate]?
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/// initialize context with a single objectt
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init(_ object: Any) {
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self.stack = [object]
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self.sequenceContext = nil
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self.indentation = nil
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self.inherited = nil
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}
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private init(
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stack: [Any],
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sequenceContext: HBMustacheSequenceContext?,
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indentation: String?,
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inherited: [String: HBMustacheTemplate]?
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) {
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self.stack = stack
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self.sequenceContext = sequenceContext
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self.indentation = indentation
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self.inherited = inherited
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}
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/// return context with object add to stack
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func withObject(_ object: Any) -> HBMustacheContext {
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var stack = self.stack
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stack.append(object)
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return .init(stack: stack, sequenceContext: nil, indentation: self.indentation, inherited: self.inherited)
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}
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/// return context with indent and parameter information for invoking a partial
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func withPartial(indented: String?, inheriting: [String: HBMustacheTemplate]?) -> HBMustacheContext {
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let indentation: String?
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if let indented = indented {
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indentation = (self.indentation ?? "") + indented
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} else {
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indentation = self.indentation
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}
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let inherits: [String: HBMustacheTemplate]?
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if let inheriting = inheriting {
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if let originalInherits = self.inherited {
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inherits = originalInherits.merging(inheriting) { value, _ in value }
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} else {
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inherits = inheriting
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}
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} else {
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inherits = self.inherited
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}
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return .init(stack: self.stack, sequenceContext: nil, indentation: indentation, inherited: inherits)
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}
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/// return context with sequence info and sequence element added to stack
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func withSequence(_ object: Any, sequenceContext: HBMustacheSequenceContext) -> HBMustacheContext {
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var stack = self.stack
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stack.append(object)
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return .init(stack: stack, sequenceContext: sequenceContext, indentation: self.indentation, inherited: self.inherited)
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}
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}
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