Nearoh-Coding-Language/runtime.h at main · ReeceGilbert/Nearoh-Coding-Language · GitHub

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#ifndef RUNTIME_H
#define RUNTIME_H

#include "ast.h"
#include "env.h"
#include "value.h"

typedef enum {
    FLOW_NORMAL,
    FLOW_RETURN,
    FLOW_BREAK,
    FLOW_CONTINUE,
    FLOW_ERROR
} FlowType;

typedef struct {
    FlowType type;
    Value value;
} ExecResult;

/*
    ImportedModule stays private in runtime.c.

    Runtime only stores an opaque pointer array here so runtime.h does not
    need to know about TokenArray, Diagnostics, lexer.h, or parser.h.
*/
typedef struct ImportedModule ImportedModule;

typedef struct Runtime {
    Environment globals;
    Environment* current;
    int hadError;
    const char* errorFile;
    int errorLine;
    int errorColumn;
    char errorMessage[256];

    ImportedModule* imports;
    int importCount;
    int importCapacity;

    char** fileStack;
    int fileStackCount;
    int fileStackCapacity;
} Runtime;

void runtimeInit(Runtime* runtime);
void runtimeFree(Runtime* runtime);

int runtimeSetEntryPath(Runtime* runtime, const char* path);

void runtimeError(Runtime* runtime, const char* message);
void runtimeErrorAt(Runtime* runtime, const AstNode* node, const char* message);

ExecResult execNormal(void);
ExecResult execError(void);
ExecResult execReturn(Value value);

Value runtimeEvalExpression(Runtime* runtime, AstNode* node);
ExecResult runtimeExecuteNode(Runtime* runtime, AstNode* node);

#endif