src/expand.h


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# pragma once

#include "preproc.h"
#include "utils.h"

typedef enum {
     SLOT_STR,
     SLOT_SPEC,
     SLOT_PROC_IN,
     SLOT_PROC_OUT,
} SlotKind;

typedef struct {
    SlotKind kind;
    union {
        char* str;
        SpecialToken spec;
        Region* proc_reg;
    } as;
} Slot;

DECLARE_VEC(Slot, SlotVec)

typedef struct {
    SlotVec cmd_slots;
    Connector conn;
} ExpandedPipelineElement;

DECLARE_VEC(ExpandedPipelineElement, ExpandedPipeline)

ExpandedPipeline expand_pipeline(Pipeline* pl, ShellState* shstate);