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23 lines
655 B
C
23 lines
655 B
C
#pragma once
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#include "literal_dictionary.h"
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typedef struct Scope {
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LiteralDictionary variables; //only allow identifiers as the keys
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LiteralDictionary types; //the types, indexed by identifiers
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struct Scope* ancestor;
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int references; //how many scopes point here
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} Scope;
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Scope* pushScope(Scope* scope);
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Scope* popScope(Scope* scope);
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//returns false if error
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bool declareScopeVariable(Scope* scope, Literal key, Literal type);
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bool isDelcaredScopeVariable(Scope* scope, Literal key);
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//return false if undefined
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bool setScopeVariable(Scope* scope, Literal key, Literal value);
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bool getScopeVariable(Scope* scope, Literal key, Literal* value);
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