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28 lines
1.2 KiB
C#
28 lines
1.2 KiB
C#
using System.Collections.Generic;
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namespace YesNt.Interpreter.Runtime;
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/// <summary>
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/// Represents one frame on the function call stack. Created when a <c>call</c> statement is
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/// executed and popped when the matching <c>return</c> is reached.
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/// </summary>
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internal class FunctionScope(int callerLine, Stack<string> arguments)
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{
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/// <summary>Gets the zero-based line index to return to after this function completes.</summary>
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public int CallerLine { get; } = callerLine;
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/// <summary>Gets the local variable table for this function invocation.</summary>
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public Dictionary<string, string> Variables { get; } = [];
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/// <summary>Gets the local list table for this function invocation.</summary>
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public Dictionary<string, List<string>> Lists { get; } = [];
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/// <summary>Gets the local label table for this function invocation.</summary>
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public Dictionary<string, int> Labels { get; } = [];
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/// <summary>Gets the stack of input arguments passed to this function via <c>push_in</c>.</summary>
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public Stack<string> Arguments { get; } = arguments;
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/// <summary>Gets the stack of output values pushed via <c>push_out</c>, consumed by the caller via <c>%out</c>.</summary>
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public Stack<string> Results { get; } = new();
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} |