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compare: ground:unstable
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ground:master ground:unstable ground:math-branch DiamondNether90:master DiamondNether90:unstable DiamondNether90:math-branch

5 Commits
a0a8cb69cc ... unstable

Author SHA1 Message Date
Maxwell
017d0eb273 Merge pull request 'Update unstable with master' (#18) from master into unstable 
Reviewed-on: ground/cground#18
 2026-01-23 14:42:36 +11:00
Maxwell Jeffress
f9352cf59f Start work on floats 2026-01-22 19:09:26 +11:00
Maxwell Jeffress
3afb59929a Add int, char, and bool to compiler 2026-01-22 14:22:12 +11:00
Maxwell Jeffress
0c2abbae2f Start working on allowing more types in compiler 2026-01-22 14:10:26 +11:00
Maxwell
955e75addb Merge pull request 'Pull stuff in again' (#17) from master into unstable 
Reviewed-on: ground/cground#17
 2026-01-22 14:07:37 +11:00
19 changed files with 566 additions and 1274 deletions
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13
README.md
View File

@@ -75,7 +75,7 @@ build
- [x] String operations
- [x] Maths
- [x] Comparisions
- [x] Type conversions
- [ ] Type conversions
- [x] Functions
- [x] Define functions
- [x] Call functions
@@ -83,7 +83,7 @@ build
- [x] Arguments for functions
- [x] Jumping within functions
- [x] Custom data structures
- [x] Working with external libraries
- [ ] Working with external libraries
## Debugger
@@ -102,7 +102,7 @@ Commands:
CGround now includes an experimental Ground -> x86_64 Linux ASM compiler. You can try it by adding the `-c` flag when running Ground. This will print the generated ASM to the console.
At present only the `int` data type is supported.
At present only the `int`, `char`, and `bool` data types are supported.
Supported instructions so far:
@@ -121,10 +121,3 @@ Supported instructions so far:
* print
* println
* end
## Closures
So I decided to add closures to Ground. Here's how they work:
* When you define a function, it makes a copy of the scope it's currently in. Variables are statically captured
* Use those variables in functions. Closure achieved!

20
docs/syntax.md
View File

@@ -362,23 +362,3 @@ Looks in the path $GROUND_LIBS/`$libraryName`.grnd for the library. ($GROUND_LIB
Attempts to import a shared library written in a compiled language like C or C++ for usage within the current program.
Looks in the path $GROUND_LIBS/`$libraryName`.so for the library. ($GROUND_LIBS is a system environment variable.)
### Data Structures
#### struct -structName
Creates a new struct which can be initialised. Until the endstruct keyword, the only valid instructions are init, set, fun, endfun, struct, and endstruct.
Any value created inside the struct will be added to the struct.
#### endstruct
Ends the creation of a struct.
#### getfield $object &fieldName &outputVar
Gets a field from an initialised object. fieldName must be a valid name of a field in the object. Errors if the field does not exist.
#### setfield &object &fieldName $value
Sets a field to a new value in the object. The value must be of the same type as the field's old value.

34
include/groundvm.h
View File

@@ -1,6 +1,5 @@
#ifndef LIBGROUND_H
#define LIBGROUND_H
#define MAX_ID_LEN 64
/*
* groundvm.h
@@ -14,9 +13,8 @@
#include <stdarg.h>
#include <uthash.h>
typedef enum GroundInstType {
IF, JUMP, END, INPUT, PRINT, PRINTLN, SET, GETTYPE, EXISTS, SETLIST, SETLISTAT, GETLISTAT, GETLISTSIZE, LISTAPPEND, GETSTRSIZE, GETSTRCHARAT, ADD, SUBTRACT, MULTIPLY, DIVIDE, EQUAL, INEQUAL, NOT, GREATER, LESSER, STOI, STOD, ITOC, CTOI, TOSTRING, FUN, RETURN, ENDFUN, PUSHARG, CALL, STRUCT, ENDSTRUCT, INIT, GETFIELD, SETFIELD, USE, EXTERN, CREATELABEL, PAUSE, DROP, ERRORCMD
IF, JUMP, END, INPUT, PRINT, PRINTLN, SET, GETTYPE, EXISTS, SETLIST, SETLISTAT, GETLISTAT, GETLISTSIZE, LISTAPPEND, GETSTRSIZE, GETSTRCHARAT, ADD, SUBTRACT, MULTIPLY, DIVIDE, EQUAL, INEQUAL, NOT, GREATER, LESSER, STOI, STOD, TOSTRING, FUN, RETURN, ENDFUN, PUSHARG, CALL, STRUCT, ENDSTRUCT, INIT, GETFIELD, SETFIELD, USE, EXTERN, CREATELABEL, PAUSE, DROP, ERRORCMD
} GroundInstType;
typedef enum GroundValueType {
@@ -166,24 +164,6 @@ typedef struct GroundObject {
GroundObjectField* fields;
} GroundObject;
typedef struct GroundLabel {
char id[MAX_ID_LEN];
int lineNum;
UT_hash_handle hh;
} GroundLabel;
typedef struct GroundVariable {
char id[MAX_ID_LEN];
GroundValue value;
UT_hash_handle hh;
} GroundVariable;
typedef struct GroundScope {
GroundLabel** labels;
GroundVariable** variables;
bool isMainScope;
} GroundScope;
#ifdef __cplusplus
extern "C" {
#endif
@@ -199,8 +179,6 @@ void groundAddValueToInstruction(GroundInstruction* inst, GroundValue value);
void groundAddReferenceToInstruction(GroundInstruction* inst, GroundArg value);
GroundArg groundCreateReference(GroundArgType type, char* ref);
void groundAddValueToScope(GroundScope* gs, const char* name, GroundValue value);
GroundValue groundCreateValue(GroundValueType type, ...);
GroundProgram groundParseFile(const char* code);
@@ -208,16 +186,6 @@ GroundProgram groundParseFile(const char* code);
GroundStruct groundCreateStruct();
void groundAddFieldToStruct(GroundStruct* gstruct, char* name, GroundValue field);
GroundObjectField* groundFindField(GroundObject head, const char *id);
// Run function returned by Ground code
// Use argc to set count of args, accepts that amount of GroundValue's after
GroundValue groundRunFunction(GroundFunction* function, size_t argc, ...);
bool serializeProgramToFile(const char* path, const GroundProgram* prog);
bool deserializeProgramFromFile(const char* path, GroundProgram* out);
#ifdef __cplusplus
}
#endif

316
libs/unistd/unistd.c
View File

@@ -1,316 +0,0 @@
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <groundvm.h>
#include <groundext.h>
// Allows Ground to access the POSIX standard library.
// Read more here: https://en.wikipedia.org/wiki/Unistd.h
// Misc functions
GroundValue groundCrypt(GroundScope* scope, List args) {
char* hash = crypt(args.values[0].data.stringVal, args.values[1].data.stringVal);
if (hash == NULL) {
ERROR(strerror(errno), "CryptError");
}
return groundCreateValue(STRING, hash);
}
GroundValue groundGetHostId(GroundScope* scope, List args) {
return groundCreateValue(INT, (int64_t) gethostid());
}
GroundValue groundSetHostId(GroundScope* scope, List args) {
int result = sethostid((long) args.values[0].data.intVal);
if (result < 0) {
ERROR(strerror(errno), "SetHostIdError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundGetHostname(GroundScope* scope, List args) {
char* buf = malloc(256);
if (buf == NULL) {
ERROR("Couldn't allocate memory to store hostname", "GetHostnameError");
}
int result = gethostname(buf, 255);
if (result < 0) {
ERROR(strerror(errno), "GetHostnameError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSetHostname(GroundScope* scope, List args) {
int result = sethostname(args.values[0].data.stringVal, strlen(args.values[0].data.stringVal));
if (result < 0) {
ERROR(strerror(errno), "SetHostnameError");
}
return groundCreateValue(INT, (int64_t) result);
}
// Signals
GroundValue groundAlarm(GroundScope* scope, List args) {
unsigned result = alarm((unsigned) args.values[0].data.intVal);
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundPause(GroundScope* scope, List args) {
int result = pause();
ERROR(strerror(errno), "PauseError");
}
// Filesystem
GroundValue groundAccess(GroundScope* scope, List args) {
int result = access(args.values[0].data.stringVal, (int) args.values[1].data.intVal);
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundChdir(GroundScope* scope, List args) {
int result = chdir(args.values[0].data.stringVal);
if (result < 0) {
ERROR(strerror(errno), "ChdirError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundChown(GroundScope* scope, List args) {
int result = chown(args.values[0].data.stringVal, (uid_t) args.values[1].data.intVal, (gid_t) args.values[2].data.intVal);
if (result < 0) {
ERROR(strerror(errno), "ChownError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundLink(GroundScope* scope, List args) {
int result = link(args.values[0].data.stringVal, args.values[1].data.stringVal);
if (result < 1) {
ERROR(strerror(errno), "LinkError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundRmdir(GroundScope* scope, List args) {
int result = rmdir(args.values[0].data.stringVal);
if (result < 1) {
ERROR(strerror(errno), "RmdirError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSymlink(GroundScope* scope, List args) {
int result = symlink(args.values[0].data.stringVal, args.values[1].data.stringVal);
if (result < 1) {
ERROR(strerror(errno), "SymlinkError");
}
return groundCreateValue(INT, (int64_t) result);
}
// Process
GroundValue groundExit(GroundScope* scope, List args) {
_exit(args.values[0].data.intVal);
ERROR("Couldn't exit (huh?)", "ExitError");
}
GroundValue groundExecv(GroundScope* scope, List args) {
char** argv = malloc(sizeof(char*) * args.values[1].data.listVal.size + 1);
if (argv == NULL) {
ERROR("Couldn't allocate memory for execv list", "ExecvError");
}
for (size_t i = 0; i < args.values[1].data.listVal.size; i++) {
if (args.values[1].data.listVal.values[i].type != STRING) {
ERROR("Expecting all arguments in list to be of String type", "ExecvError");
}
argv[i] = args.values[1].data.listVal.values[i].data.stringVal;
}
argv[args.values[1].data.listVal.size] = NULL;
int result = execv(args.values[0].data.stringVal, argv);
ERROR(strerror(errno), "ExecvError");
}
GroundValue groundExecvp(GroundScope* scope, List args) {
char** argv = malloc(sizeof(char*) * args.values[1].data.listVal.size + 1);
if (argv == NULL) {
ERROR("Couldn't allocate memory for execv list", "ExecvpError");
}
for (size_t i = 0; i < args.values[1].data.listVal.size; i++) {
if (args.values[1].data.listVal.values[i].type != STRING) {
ERROR("Expecting all arguments in list to be of String type", "ExecvpError");
}
argv[i] = args.values[1].data.listVal.values[i].data.stringVal;
}
argv[args.values[1].data.listVal.size] = NULL;
int result = execvp(args.values[0].data.stringVal, argv);
ERROR(strerror(errno), "ExecvpError");
}
GroundValue groundFork(GroundScope* scope, List args) {
pid_t id = fork();
if (id < 0) {
ERROR(strerror(errno), "ForkError");
}
return groundCreateValue(INT, id);
}
GroundValue groundGetPid(GroundScope* scope, List args) {
return groundCreateValue(INT, (int64_t) getpid());
}
GroundValue groundGetPPid(GroundScope* scope, List args) {
return groundCreateValue(INT, (int64_t) getppid());
}
GroundValue groundGetSid(GroundScope* scope, List args) {
pid_t result = getsid((pid_t) args.values[0].data.intVal);
if (result < 0) {
ERROR(strerror(errno), "GetSidError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundNice(GroundScope* scope, List args) {
int result = nice((int) args.values[0].data.intVal);
if (result < 0) {
ERROR(strerror(errno), "NiceError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSetSid(GroundScope* scope, List args) {
pid_t result = setsid();
if (result < 0) {
ERROR(strerror(errno), "SetSidError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSleep(GroundScope* scope, List args) {
unsigned int result = sleep((unsigned int) args.values[0].data.intVal);
return groundCreateValue(INT, (int64_t) result);
}
// User/Group
GroundValue groundGetGid(GroundScope* scope, List args) {
return groundCreateValue(INT, (int64_t) getgid());
}
GroundValue groundGetEGid(GroundScope* scope, List args) {
return groundCreateValue(INT, (int64_t) getegid());
}
GroundValue groundGetUid(GroundScope* scope, List args) {
return groundCreateValue(INT, (int64_t) getuid());
}
GroundValue groundGetEUid(GroundScope* scope, List args) {
return groundCreateValue(INT, (int64_t) geteuid());
}
GroundValue groundGetLogin(GroundScope* scope, List args) {
char* login = getlogin();
if (login == NULL) {
ERROR(strerror(errno), "GetLoginError");
}
return groundCreateValue(STRING, login);
}
GroundValue groundSetEUid(GroundScope* scope, List args) {
int result = seteuid((uid_t) args.values[0].data.intVal);
if (result < -1) {
ERROR(strerror(errno), "SetEUidError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSetEGid(GroundScope* scope, List args) {
int result = setegid((uid_t) args.values[0].data.intVal);
if (result < -1) {
ERROR(strerror(errno), "SetEGidError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSetREUid(GroundScope* scope, List args) {
int result = setreuid((uid_t) args.values[0].data.intVal, (uid_t) args.values[1].data.intVal);
if (result < -1) {
ERROR(strerror(errno), "SetREUidError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSetREGid(GroundScope* scope, List args) {
int result = setregid((gid_t) args.values[0].data.intVal, (gid_t) args.values[1].data.intVal);
if (result < -1) {
ERROR(strerror(errno), "SetREGidError");
}
return groundCreateValue(INT, (int64_t) result);
}
GroundValue groundSetUid(GroundScope* scope, List args) {
int result = setuid((uid_t) args.values[0].data.intVal);
if (result < -1) {
ERROR(strerror(errno), "SetUidError");
}
return groundCreateValue(INT, (int64_t) result);
}
void ground_init(GroundScope* scope) {
// Misc
groundAddNativeFunction(scope, "unistd_Crypt", groundCrypt, STRING, 2, STRING, "key", STRING, "value");
groundAddNativeFunction(scope, "unistd_GetHostId", groundGetHostId, INT, 0);
groundAddNativeFunction(scope, "unistd_SetHostId", groundSetHostId, INT, 1, INT, "hostid");
groundAddNativeFunction(scope, "unistd_GetHostname", groundGetHostname, STRING, 0);
groundAddNativeFunction(scope, "unistd_SetHostname", groundSetHostname, INT, 1, STRING, "name");
// Signals
groundAddNativeFunction(scope, "unistd_Alarm", groundAlarm, INT, 1, INT, "seconds");
groundAddNativeFunction(scope, "unistd_Pause", groundPause, INT, 0);
// Filesystem
groundAddValueToScope(scope, "unistd_F_OK", groundCreateValue(INT, F_OK));
groundAddValueToScope(scope, "unistd_R_OK", groundCreateValue(INT, R_OK));
groundAddValueToScope(scope, "unistd_W_OK", groundCreateValue(INT, W_OK));
groundAddValueToScope(scope, "unistd_X_OK", groundCreateValue(INT, X_OK));
groundAddNativeFunction(scope, "unistd_Access", groundAccess, INT, 2, STRING, "path", INT, "mode");
groundAddNativeFunction(scope, "unistd_Chdir", groundAccess, INT, 1, STRING, "path");
groundAddNativeFunction(scope, "unistd_Chown", groundChown, INT, 3, STRING, "path", INT, "owner", INT, "group");
groundAddNativeFunction(scope, "unistd_Link", groundLink, INT, 2, STRING, "oldpath", STRING, "newpath");
groundAddNativeFunction(scope, "unistd_Rmdir", groundRmdir, INT, 1, STRING, "path");
groundAddNativeFunction(scope, "unistd_Symlink", groundSymlink, INT, 2, STRING, "target", STRING, "linkpath");
// Process
groundAddNativeFunction(scope, "unistd_Exit", groundExit, INT, 1, INT, "status");
groundAddNativeFunction(scope, "unistd_Execv", groundExecv, INT, 2, STRING, "path", LIST, "argv");
groundAddNativeFunction(scope, "unistd_Execvp", groundExecvp, INT, 2, STRING, "path", LIST, "argv");
groundAddNativeFunction(scope, "unistd_Fork", groundFork, INT, 0);
groundAddNativeFunction(scope, "unistd_GetPid", groundGetPid, INT, 0);
groundAddNativeFunction(scope, "unistd_GetPPid", groundGetPPid, INT, 0);
groundAddNativeFunction(scope, "unistd_GetSid", groundGetSid, INT, 1, INT, "pid");
groundAddNativeFunction(scope, "unistd_Nice", groundNice, INT, 1, INT, "inc");
groundAddNativeFunction(scope, "unistd_SetSid", groundSetSid, INT, 0);
groundAddNativeFunction(scope, "unistd_Sleep", groundSleep, INT, 1, INT, "seconds");
// User/Group
groundAddNativeFunction(scope, "unistd_GetGid", groundGetGid, INT, 0);
groundAddNativeFunction(scope, "unistd_GetEGid", groundGetEGid, INT, 0);
groundAddNativeFunction(scope, "unistd_GetUid", groundGetUid, INT, 0);
groundAddNativeFunction(scope, "unistd_GetEUid", groundGetEUid, INT, 0);
groundAddNativeFunction(scope, "unistd_GetLogin", groundGetLogin, STRING, 0);
groundAddNativeFunction(scope, "unistd_SetEUid", groundSetEUid, INT, 1, INT, "euid");
groundAddNativeFunction(scope, "unistd_SetEGid", groundSetEGid, INT, 1, INT, "egid");
groundAddNativeFunction(scope, "unistd_SetREUid", groundSetEGid, INT, 1, INT, "ruid", INT, "euid");
groundAddNativeFunction(scope, "unistd_SetREGid", groundSetEGid, INT, 1, INT, "rgid", INT, "egid");
}

441
src/compiler.c
View File

@@ -4,6 +4,7 @@
#include "include/estr.h"
#include <stdint.h>
#include <inttypes.h>
#include <stdio.h>
VariableTable createVariableTable() {
VariableTable vt;
@@ -13,7 +14,7 @@ VariableTable createVariableTable() {
return vt;
}
void addVtVariable(VariableTable* vt, const char* name) {
void addVtVariable(VariableTable* vt, const char* name, GroundValueType type) {
// check if it already exists
for (size_t i = 0; i < vt->count; i++) {
if (strcmp(vt->vars[i].name, name) == 0) {
@@ -29,10 +30,20 @@ void addVtVariable(VariableTable* vt, const char* name) {
// add the variable
strcpy(vt->vars[vt->count].name, name);
vt->vars[vt->count].type = type;
vt->vars[vt->count].offset = vt->count * 8;
vt->count++;
}
VariableInfo* getVariable(VariableTable* vt, const char* name) {
for (size_t i = 0; i < vt->count; i++) {
if (strcmp(vt->vars[i].name, name) == 0) {
return &vt->vars[i];
}
}
return NULL;
}
int getVariablePos(VariableTable* vt, const char* name) {
for (size_t i = 0; i < vt->count; i++) {
if (strcmp(vt->vars[i].name, name) == 0) {
@@ -42,6 +53,318 @@ int getVariablePos(VariableTable* vt, const char* name) {
return -1;
}
DoubleTable createDoubleTable() {
DoubleTable dt;
dt.count = 0;
dt.capacity = 16;
dt.constants = malloc(sizeof(DoubleConstant) * 16);
return dt;
}
char* addDoubleConstant(DoubleTable* dt, Estr* rodata, double value, int* counter) {
for (size_t i = 0; i < dt->count; i++) {
if (dt->constants[i].value == value) {
return dt->constants[i].label;
}
}
if (dt->count >= dt->capacity) {
dt->capacity = dt->capacity == 0 ? 16 : dt->capacity * 2;
dt->constants = realloc(dt->constants, sizeof(DoubleConstant) * dt->capacity);
}
char label[64];
snprintf(label, sizeof(label), "float_const_%d", (*counter)++);
strcpy(dt->constants[dt->count].label, label);
dt->constants[dt->count].value = value;
dt->count++;
char line[128];
snprintf(line, 128, "%s: dq %.17g ; double constant\n", label, value);
APPEND_ESTR((*rodata), line);
return dt->constants[dt->count - 1].label;
}
GroundValueType getInstructionReturnType(GroundInstruction* gi, VariableTable* table) {
switch (gi->type) {
case JUMP:
case PRINT:
case PRINTLN:
case END:
case IF:
case RETURN:
case ENDFUN:
case PUSHARG:
case CALL: // FIXME do this when functions are added
case USE:
case EXTERN:
case CREATELABEL:
case PAUSE:
case DROP:
case ERRORCMD:
case ENDSTRUCT:
case INIT: // FIXME do this when objects are added
case GETFIELD: // FIXME do this when objects are added
case SETFIELD: // FIXME do this when objects are added
case DIVIDE: // FIXME do this when division is added
case SETLISTAT:
case GETLISTAT: // FIXME do this when lists are getting implemented
case LISTAPPEND: {
return NONE;
}
case TOSTRING:
case GETTYPE:
case INPUT: {
return STRING;
}
case STOI:
case GETLISTSIZE:
case GETSTRSIZE: {
return INT;
}
case STOD: {
return DOUBLE;
}
case EQUAL:
case INEQUAL:
case GREATER:
case LESSER:
case NOT:
case EXISTS: {
return BOOL;
}
case GETSTRCHARAT: {
return CHAR;
}
case SETLIST: {
return LIST;
}
case FUN: {
return FUNCTION;
}
case STRUCT: {
return STRUCTVAL;
}
case SET: {
if (gi->args.length == 2) {
if (gi->args.args[1].type == VALUE) {
return gi->args.args[1].value.value.type;
} else if (gi->args.args[1].type == VALREF) {
VariableInfo* var = getVariable(table, gi->args.args[1].value.refName);
if (var == NULL) {
return NONE;
}
return var->type;
} else {
return NONE;
}
} else {
return NONE;
}
}
case ADD: {
if (gi->args.length == 3) {
GroundValueType leftType;
GroundValueType rightType;
if (gi->args.args[0].type == VALUE) {
leftType = gi->args.args[0].value.value.type;
} else if (gi->args.args[0].type == VALREF) {
VariableInfo* var = getVariable(table, gi->args.args[0].value.refName);
if (var == NULL) {
return NONE;
}
leftType = var->type;
} else {
return NONE;
}
if (gi->args.args[1].type == VALUE) {
rightType = gi->args.args[1].value.value.type;
} else if (gi->args.args[1].type == VALREF) {
VariableInfo* var = getVariable(table, gi->args.args[1].value.refName);
if (var == NULL) {
return NONE;
}
rightType = var->type;
} else {
return NONE;
}
if (leftType == STRING) {
if (rightType == STRING) {
return STRING;
} else {
return NONE;
}
}
if (leftType == DOUBLE) {
if (rightType == DOUBLE || rightType == INT) {
return DOUBLE;
} else {
return NONE;
}
}
if (rightType == DOUBLE) {
if (leftType == DOUBLE || leftType == INT) {
return DOUBLE;
} else {
return NONE;
}
}
if (rightType == INT && leftType == INT) {
return INT;
}
return NONE;
} else {
return NONE;
}
}
case SUBTRACT: {
if (gi->args.length == 3) {
GroundValueType leftType;
GroundValueType rightType;
if (gi->args.args[0].type == VALUE) {
leftType = gi->args.args[0].value.value.type;
} else if (gi->args.args[0].type == VALREF) {
VariableInfo* var = getVariable(table, gi->args.args[0].value.refName);
if (var == NULL) {
return NONE;
}
leftType = var->type;
} else {
return NONE;
}
if (gi->args.args[1].type == VALUE) {
rightType = gi->args.args[1].value.value.type;
} else if (gi->args.args[1].type == VALREF) {
VariableInfo* var = getVariable(table, gi->args.args[1].value.refName);
if (var == NULL) {
return NONE;
}
rightType = var->type;
} else {
return NONE;
}
if (leftType == DOUBLE) {
if (rightType == DOUBLE || rightType == INT) {
return DOUBLE;
} else {
return NONE;
}
}
if (rightType == DOUBLE) {
if (leftType == DOUBLE || leftType == INT) {
return DOUBLE;
} else {
return NONE;
}
}
if (rightType == INT && leftType == INT) {
return INT;
}
return NONE;
} else {
return NONE;
}
}
case MULTIPLY: {
if (gi->args.length == 3) {
GroundValueType leftType;
GroundValueType rightType;
if (gi->args.args[0].type == VALUE) {
leftType = gi->args.args[0].value.value.type;
} else if (gi->args.args[0].type == VALREF) {
VariableInfo* var = getVariable(table, gi->args.args[0].value.refName);
if (var == NULL) {
return NONE;
}
leftType = var->type;
} else {
return NONE;
}
if (gi->args.args[1].type == VALUE) {
rightType = gi->args.args[1].value.value.type;
} else if (gi->args.args[1].type == VALREF) {
VariableInfo* var = getVariable(table, gi->args.args[1].value.refName);
if (var == NULL) {
return NONE;
}
rightType = var->type;
} else {
return NONE;
}
if (leftType == DOUBLE) {
if (rightType == DOUBLE || rightType == INT) {
return DOUBLE;
} else {
return NONE;
}
}
if (rightType == DOUBLE) {
if (leftType == DOUBLE || leftType == INT) {
return DOUBLE;
} else {
return NONE;
}
}
if (rightType == INT && leftType == INT) {
return INT;
}
return NONE;
} else {
return NONE;
}
}
}
return INT;
}
char* processValueString(GroundArg arg, VariableTable* vt, GroundValueType* outType, DoubleTable* dt, Estr* rodata, int* doubleCounter) {
if (arg.type == VALREF) {
VariableInfo* var = getVariable(vt, arg.value.refName);
if (var && outType) *outType = var->type;
char* buf = malloc(260);
snprintf(buf, 260, "[%s]", arg.value.refName);
return buf;
}
if (arg.type == VALUE) {
if (outType) *outType = arg.value.value.type;
switch(arg.value.value.type) {
case INT: {
char* buf = malloc(64);
snprintf(buf, 64, "%" PRId64, arg.value.value.data.intVal);
return buf;
break;
}
case DOUBLE: {
char* label = addDoubleConstant(dt, rodata, arg.value.value.data.doubleVal, doubleCounter);
char* buf = malloc(128);
snprintf(buf, 128, "[rel %s]", label);
return buf;
break;
}
case BOOL:
return arg.value.value.data.boolVal ? "1" : "0";
break;
case CHAR: {
char* buf = malloc(8);
snprintf(buf, 8, "%d", (int)arg.value.value.data.charVal);
return buf;
break;
}
default: {
printf("For now, only int, bool, and char are supported data types in the compiler.");
exit(1);
break;
}
}
}
return NULL;
}
/*
char* processValueString(GroundArg arg) {
if (arg.type == VALREF) {
char* buf = malloc(sizeof(char) * 260);
@@ -49,21 +372,43 @@ char* processValueString(GroundArg arg) {
return buf;
}
if (arg.type == VALUE) {
if (arg.value.value.type != INT) {
printf("Only int is supported right now\n");
exit(1);
}
switch (arg.value.value.type) {
case INT: {
char* buf = malloc(sizeof(char) * 64);
snprintf(buf, sizeof(char) * 260, "%" PRId64, arg.value.value.data.intVal);
return buf;
break;
}
case BOOL: {
return arg.value.value.data.boolVal ? "1" : "0";
break;
}
case CHAR: {
char* buf = malloc(8);
snprintf(buf, 8, "%d", (int) arg.value.value.data.charVal);
return buf;
break;
}
default: {
printf("For now, only int, bool, and char are supported data types in the compiler.");
exit(1);
break;
}
}
}
return NULL;
}
*/
char* compileGroundProgram(GroundProgram* program) {
Estr start = CREATE_ESTR("global _start\nsection .text\n_start:\n");
Estr data = CREATE_ESTR("section .bss\n");
Estr helpers = CREATE_ESTR("");
Estr rodata = CREATE_ESTR("section .rodata\n");
APPEND_ESTR(rodata, " newline_char: db 10\n");
APPEND_ESTR(rodata, " space_char: db 32\n");
DoubleTable doubleTable = createDoubleTable();
int doubleConstCounter = 0;
APPEND_ESTR(helpers, "\n; Helper: Print integer in rax\n");
APPEND_ESTR(helpers, "print_int:\n");
@@ -124,7 +469,7 @@ char* compileGroundProgram(GroundProgram* program) {
GroundInstruction gi = program->instructions[i];
for (size_t j = 0; j < gi.args.length; j++) {
if (gi.args.args[j].type == DIRREF) {
addVtVariable(&varTable, gi.args.args[j].value.refName);
addVtVariable(&varTable, gi.args.args[j].value.refName, getInstructionReturnType(&gi, &varTable));
}
}
}
@@ -166,7 +511,7 @@ char* compileGroundProgram(GroundProgram* program) {
APPEND_ESTR(start, " ; set\n")
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " mov [");
APPEND_ESTR(start, varName);
@@ -212,7 +557,7 @@ char* compileGroundProgram(GroundProgram* program) {
APPEND_ESTR(start, " ; if\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " test rax, rax\n");
APPEND_ESTR(start, " jnz ");
@@ -239,7 +584,7 @@ char* compileGroundProgram(GroundProgram* program) {
APPEND_ESTR(start, " ; not\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " xor rax, 1\n");
APPEND_ESTR(start, " mov [");
@@ -265,17 +610,55 @@ char* compileGroundProgram(GroundProgram* program) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 3", &gi, i);
}
char* varName= gi.args.args[2].value.refName;
GroundValueType leftType, rightType;
char* left = processValueString(gi.args.args[0], &varTable, &leftType, &doubleTable, &rodata, &doubleConstCounter);
char* right = processValueString(gi.args.args[1], &varTable, &rightType, &doubleTable, &rodata, &doubleConstCounter);
char* varName = gi.args.args[2].value.refName;
bool isDouble = (leftType == DOUBLE || rightType == DOUBLE);
if (isDouble) {
APPEND_ESTR(start, " ; add (double)\n");
if (leftType == INT) {
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, left);
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " cvtsi2sd xmm0, rax ; Convert int to double\n");
} else {
APPEND_ESTR(start, " movsd xmm0, ");
APPEND_ESTR(start, left);
APPEND_ESTR(start, "\n");
}
if (rightType == INT) {
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, right);
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " cvtsi2sd xmm1, rax ; Convert int to double\n");
APPEND_ESTR(start, " addsd xmm0, xmm1\n");
} else {
APPEND_ESTR(start, " addsd xmm0, ");
APPEND_ESTR(start, right);
APPEND_ESTR(start, "\n");
}
APPEND_ESTR(start, " movsd [");
APPEND_ESTR(start, varName);
APPEND_ESTR(start, "], xmm0\n");
} else {
APPEND_ESTR(start, " ; add\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " add rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " mov [");
APPEND_ESTR(start, varName);
APPEND_ESTR(start, "], rax\n");
}
break;
}
case SUBTRACT: {
@@ -298,10 +681,10 @@ char* compileGroundProgram(GroundProgram* program) {
char* varName= gi.args.args[2].value.refName;
APPEND_ESTR(start, " ; subtract\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " sub rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " mov [");
APPEND_ESTR(start, varName);
@@ -328,10 +711,10 @@ char* compileGroundProgram(GroundProgram* program) {
char* varName= gi.args.args[2].value.refName;
APPEND_ESTR(start, " ; multiply\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " imul rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " mov [");
APPEND_ESTR(start, varName);
@@ -358,10 +741,10 @@ char* compileGroundProgram(GroundProgram* program) {
char* varName= gi.args.args[2].value.refName;
APPEND_ESTR(start, " ; equal\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " cmp rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " sete al\n");
APPEND_ESTR(start, " movzx rax, al\n");
@@ -390,10 +773,10 @@ char* compileGroundProgram(GroundProgram* program) {
char* varName= gi.args.args[2].value.refName;
APPEND_ESTR(start, " ; inequal\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " cmp rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " setne al\n");
APPEND_ESTR(start, " movzx rax, al\n");
@@ -422,10 +805,10 @@ char* compileGroundProgram(GroundProgram* program) {
char* varName= gi.args.args[2].value.refName;
APPEND_ESTR(start, " ; greater\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " cmp rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " setg al\n");
APPEND_ESTR(start, " movzx rax, al\n");
@@ -454,10 +837,10 @@ char* compileGroundProgram(GroundProgram* program) {
char* varName= gi.args.args[2].value.refName;
APPEND_ESTR(start, " ; lesser\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " cmp rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[1]));
APPEND_ESTR(start, processValueString(gi.args.args[1], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " setl al\n");
APPEND_ESTR(start, " movzx rax, al\n");
@@ -487,7 +870,7 @@ char* compileGroundProgram(GroundProgram* program) {
}
APPEND_ESTR(start, " ; print int\n");
APPEND_ESTR(start, " mov rax, ");
APPEND_ESTR(start, processValueString(gi.args.args[j]));
APPEND_ESTR(start, processValueString(gi.args.args[j], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " call print_int\n");
}
@@ -512,7 +895,7 @@ char* compileGroundProgram(GroundProgram* program) {
APPEND_ESTR(start, " ; end\n");
APPEND_ESTR(start, " mov rax, 60\n");
APPEND_ESTR(start, " mov rdi, ");
APPEND_ESTR(start, processValueString(gi.args.args[0]));
APPEND_ESTR(start, processValueString(gi.args.args[0], &varTable, NULL, &doubleTable, &rodata, &doubleConstCounter));
APPEND_ESTR(start, "\n");
APPEND_ESTR(start, " syscall\n");
break;
@@ -532,10 +915,8 @@ char* compileGroundProgram(GroundProgram* program) {
APPEND_ESTR(complete, start.str);
APPEND_ESTR(complete, " ; End of program\n mov rax, 60\n mov rdi, 0\n syscall\n");
APPEND_ESTR(complete, helpers.str);
APPEND_ESTR(complete, "\nsection .rodata\n");
APPEND_ESTR(complete, "newline_char: db 10\n");
APPEND_ESTR(complete, "space_char: db 32\n");
APPEND_ESTR(complete, data.str)
APPEND_ESTR(complete, data.str);
APPEND_ESTR(complete, rodata.str);
return complete.str;
}

10
src/compiler.h
View File

@@ -7,6 +7,7 @@ char* compileGroundProgram(GroundProgram* program);
typedef struct VariableInfo {
char name[256];
int offset;
GroundValueType type;
} VariableInfo;
typedef struct VariableTable {
@@ -15,4 +16,13 @@ typedef struct VariableTable {
size_t capacity;
} VariableTable;
typedef struct DoubleConstant {
double value;
char label[64];
} DoubleConstant;
typedef struct DoubleTable {
DoubleConstant* constants;
size_t count;
size_t capacity;
} DoubleTable;

96
src/interface.c
View File

@@ -43,87 +43,60 @@ GroundValue groundCreateValue(GroundValueType type, ...) {
va_list args;
va_start(args, type);
GroundValue gv;
switch (type) {
case INT: {
gv = createIntGroundValue(va_arg(args, int64_t));
return createIntGroundValue(va_arg(args, int64_t));
break;
}
case DOUBLE: {
gv = createDoubleGroundValue(va_arg(args, double));
return createDoubleGroundValue(va_arg(args, double));
break;
}
case STRING: {
gv = createStringGroundValue(va_arg(args, char*));
return createStringGroundValue(va_arg(args, char*));
break;
}
case CHAR: {
gv = createCharGroundValue((char)va_arg(args, int));
return createCharGroundValue((char)va_arg(args, int));
break;
}
case BOOL: {
gv = createBoolGroundValue((bool)va_arg(args, int));
return createBoolGroundValue((bool)va_arg(args, int));
break;
}
case LIST: {
gv = createListGroundValue(va_arg(args, List));
return createListGroundValue(va_arg(args, List));
break;
}
case FUNCTION: {
gv = createFunctionGroundValue(va_arg(args, GroundFunction*));
return createFunctionGroundValue(va_arg(args, GroundFunction*));
break;
}
case STRUCTVAL: {
GroundValue gv;
gv.type = STRUCTVAL;
gv.data.structVal = malloc(sizeof(GroundStruct));
*gv.data.structVal = va_arg(args, GroundStruct);
break;
return gv;
}
case NONE: {
gv = createNoneGroundValue();
return createNoneGroundValue();
break;
}
case ERROR:
case CUSTOM: {
// CUSTOM values are created from structs
GroundStruct* gstruct = va_arg(args, GroundStruct*);
gv.type = CUSTOM;
gv.data.customVal = malloc(sizeof(GroundObject));
*gv.data.customVal = createObject(*gstruct);
// Deep copy the struct definition so it stays valid
gv.customType = malloc(sizeof(GroundStruct));
gv.customType->size = gstruct->size;
gv.customType->fields = malloc(gstruct->size * sizeof(GroundStructField));
for (size_t i = 0; i < gstruct->size; i++) {
strncpy(gv.customType->fields[i].id, gstruct->fields[i].id, 64);
gv.customType->fields[i].value = copyGroundValue(&gstruct->fields[i].value);
}
break;
}
case ERROR: {
// FIXME
gv = createNoneGroundValue();
break;
}
default: {
gv = createNoneGroundValue();
break;
}
}
return createNoneGroundValue();
va_end(args);
return gv;
}
GroundValue groundRunProgram(GroundProgram* program) {
GroundVariable* variables = NULL;
GroundLabel* labels = NULL;
GroundScope scope = {
.variables = &variables,
.labels = &labels,
.isMainScope = true
};
return interpretGroundProgram(program, &scope);
return interpretGroundProgram(program, NULL);
}
void groundPrintProgram(GroundProgram* program) {
@@ -155,44 +128,3 @@ void groundAddFieldToStruct(GroundStruct* gstruct, char* name, GroundValue field
char* groundCompileProgram(GroundProgram* program) {
return compileGroundProgram(program);
}
GroundValue groundRunFunction(GroundFunction* function, size_t argc, ...) {
va_list args;
va_start(args, argc);
if (function == NULL) {
return createErrorGroundValue(createGroundError("Null function passed to groundRunFunction", "valueError", NULL, NULL));
}
// Seems to crash some functions
// GroundScope callScope = copyGroundScope(&function->closure);
GroundScope callScope = {
.labels = malloc(sizeof(GroundLabel*)),
.variables = malloc(sizeof(GroundVariable*)),
.isMainScope = false
};
*callScope.variables = NULL;
*callScope.labels = NULL;
if (argc != function->argSize) {
return createErrorGroundValue(createGroundError("Too few or too many arguments for function", "callError", NULL, NULL));
}
for (size_t i = 0; i < argc; i++) {
GroundValue gv = va_arg(args, GroundValue);
if (checkFnTypes(&gv, &function->args[i]) == false) {
return createErrorGroundValue(createGroundError("Mismatched argument type", "callError", NULL, NULL));
}
addVariable(callScope.variables, function->args[i].name, gv);
}
va_end(args);
return interpretGroundProgram(&function->program, &callScope);
}
GroundObjectField* groundFindField(GroundObject head, const char *id) {
GroundObjectField* s;
HASH_FIND_STR(head.fields, id, s);
return s;
}

169
src/interpreter.c
View File

@@ -5,9 +5,7 @@
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#ifndef _WIN32
#include <dlfcn.h>
#endif
#include <stdarg.h>
#include <unistd.h>
@@ -445,11 +443,9 @@ GroundStruct parseStruct(GroundProgram* in, GroundScope* scope, size_t errorOffs
addInstructionToProgram(&gp, in->instructions[i]);
i++;
}
i--;
GroundFunction* function = parseFunction(&gp, errorOffset);
function->startLine = i;
function->closure = copyGroundScope(scope);
GroundValue gv = createFunctionGroundValue(function);
addFieldToStruct(&gstruct, name, gv);
break;
@@ -485,6 +481,41 @@ GroundValue interpretGroundProgram(GroundProgram* in, GroundScope* inScope) {
if (in->instructions[i].type == CREATELABEL) {
addLabel(scope.labels, in->instructions[i].args.args[0].value.refName, i);
}
if (in->instructions[i].type == FUN) {
if (in->instructions[i].args.length < 1) {
runtimeError(TOO_FEW_ARGS, "Expecting 1 or more args", &in->instructions[i], i);
}
if (in->instructions[i].args.args[0].type != FNREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a FunctionRef for arg 1", &in->instructions[i], i);
}
char* name = malloc(strlen(in->instructions[i].args.args[0].value.refName) + 1);
strcpy(name, in->instructions[i].args.args[0].value.refName);
size_t counter = 1;
GroundProgram gp = createGroundProgram();
addInstructionToProgram(&gp, in->instructions[i]);
size_t errorOffset = i;
i++;
while (counter > 0) {
if (i >= in->size) {
runtimeError(PREMATURE_EOF, "Reached end of scope before function definition ended", &in->instructions[i - 1], i - 1);
}
if (in->instructions[i].type == FUN) {
counter++;
}
if (in->instructions[i].type == ENDFUN) {
counter--;
}
addInstructionToProgram(&gp, in->instructions[i]);
i++;
}
GroundFunction* function = parseFunction(&gp, errorOffset);
function->startLine = i;
GroundValue gv = createFunctionGroundValue(function);
addVariable(scope.variables, name, gv);
}
if (in->instructions[i].type == STRUCT) {
if (in->instructions[i].args.length < 1) {
runtimeError(TOO_FEW_ARGS, "Expecting 1 arg", &in->instructions[i], i);
@@ -515,7 +546,6 @@ GroundValue interpretGroundProgram(GroundProgram* in, GroundScope* inScope) {
addInstructionToProgram(&gp, in->instructions[i]);
i++;
}
i--;
GroundValue gv = {
.type = STRUCTVAL,
@@ -527,44 +557,6 @@ GroundValue interpretGroundProgram(GroundProgram* in, GroundScope* inScope) {
}
}
for (size_t i = 0; i < in->size; i++) {
if (in->instructions[i].type == FUN) {
if (in->instructions[i].args.length < 1) {
runtimeError(TOO_FEW_ARGS, "Expecting 1 or more args", &in->instructions[i], i);
}
if (in->instructions[i].args.args[0].type != FNREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a FunctionRef for arg 1", &in->instructions[i], i);
}
char* name = malloc(strlen(in->instructions[i].args.args[0].value.refName) + 1);
strcpy(name, in->instructions[i].args.args[0].value.refName);
size_t counter = 1;
GroundProgram gp = createGroundProgram();
addInstructionToProgram(&gp, in->instructions[i]);
size_t errorOffset = i;
i++;
while (counter > 0) {
if (i >= in->size) {
runtimeError(PREMATURE_EOF, "Reached end of scope before function definition ended", &in->instructions[i - 1], i - 1);
}
if (in->instructions[i].type == FUN) {
counter++;
}
if (in->instructions[i].type == ENDFUN) {
counter--;
}
addInstructionToProgram(&gp, in->instructions[i]);
i++;
}
i--;
GroundFunction* function = parseFunction(&gp, errorOffset);
function->startLine = i;
function->closure = copyGroundScope(inScope);
GroundValue gv = createFunctionGroundValue(function);
addVariable(scope.variables, name, gv);
}
/*
if (in->instructions[i].type == FUN) {
int count = 1;
while (count > 0) {
@@ -580,7 +572,6 @@ GroundValue interpretGroundProgram(GroundProgram* in, GroundScope* inScope) {
}
}
}
*/
if (in->instructions[i].type == STRUCT) {
int count = 1;
while (count > 0) {
@@ -705,7 +696,7 @@ GroundValue interpretGroundProgram(GroundProgram* in, GroundScope* inScope) {
return gv;
}
if (ci != currentInstruction) {
i = ci;
i = currentInstruction;
}
currentInstruction++;
}
@@ -1113,7 +1104,7 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
if (in->args.args[1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
addVariable(scope->variables, in->args.args[1].value.refName, createIntGroundValue(atoll(in->args.args[0].value.value.data.stringVal)));
addVariable(scope->variables, in->args.args[2].value.refName, createIntGroundValue(atoll(in->args.args[0].value.value.data.stringVal)));
break;
}
case STOD: {
@@ -1129,39 +1120,7 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
if (in->args.args[1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
addVariable(scope->variables, in->args.args[1].value.refName, createDoubleGroundValue(atof(in->args.args[0].value.value.data.stringVal)));
break;
}
case ITOC: {
if (in->args.length < 2) {
runtimeError(TOO_FEW_ARGS, "Expecting 2 args", in, currentInstruction);
}
if (in->args.length > 2) {
runtimeError(TOO_MANY_ARGS, "Expecting 2 args", in, currentInstruction);
}
if (in->args.args[0].type != VALUE || in->args.args[0].value.value.type != INT) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting an Int for arg 1", in, currentInstruction);
}
if (in->args.args[1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
addVariable(scope->variables, in->args.args[1].value.refName, createCharGroundValue((char)in->args.args[0].value.value.data.intVal));
break;
}
case CTOI: {
if (in->args.length < 2) {
runtimeError(TOO_FEW_ARGS, "Expecting 2 args", in, currentInstruction);
}
if (in->args.length > 2) {
runtimeError(TOO_MANY_ARGS, "Expecting 2 args", in, currentInstruction);
}
if (in->args.args[0].type != VALUE || in->args.args[0].value.value.type != CHAR) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a Char for arg 1", in, currentInstruction);
}
if (in->args.args[1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
addVariable(scope->variables, in->args.args[1].value.refName, createIntGroundValue((int)in->args.args[0].value.value.data.charVal));
addVariable(scope->variables, in->args.args[1].value.refName, createIntGroundValue(atof(in->args.args[0].value.value.data.stringVal)));
break;
}
case TOSTRING: {
@@ -1178,53 +1137,57 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef for arg 2", in, currentInstruction);
}
GroundValue* value = &in->args.args[0].value.value;
char buf[256];
switch (value->type) {
case INT: {
snprintf(buf, sizeof(buf), "%" PRId64, value->data.intVal);
char* buf = malloc(sizeof(char) * 256);
snprintf(buf, sizeof(char) * 256, "%" PRId64, value->data.intVal);
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue(buf));
break;
}
case DOUBLE: {
snprintf(buf, sizeof(buf), "%f", value->data.doubleVal);
char* buf = malloc(sizeof(char) * 256);
snprintf(buf, sizeof(char) * 256, "%f", value->data.doubleVal);
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue(buf));
break;
}
case STRING: {
snprintf(buf, sizeof(buf), "%s", value->data.stringVal);
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue(value->data.stringVal));
break;
}
case CHAR: {
char* buf = malloc(sizeof(char) * 2);
buf[0] = value->data.charVal;
buf[1] = '\0';
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue(buf));
break;
}
case BOOL: {
if (value->data.boolVal) {
snprintf(buf, sizeof(buf), "true");
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue("true"));
} else {
snprintf(buf, sizeof(buf), "false");
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue("false"));
}
break;
}
case LIST: {
snprintf(buf, sizeof(buf), "<list>");
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue("<list>"));
break;
}
case FUNCTION: {
snprintf(buf, sizeof(buf), "<function>");
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue("<function>"));
break;
}
case CUSTOM: {
snprintf(buf, sizeof(buf), "<custom>");
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue("<custom>"));
break;
}
case NONE:
default: {
snprintf(buf, sizeof(buf), "<default>");
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue("<default>"));
break;
}
}
addVariable(scope->variables, in->args.args[1].value.refName, createStringGroundValue(buf));
break;
}
@@ -1793,6 +1756,11 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
if (in->args.args[in->args.length - 1].type != DIRREF) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a DirectRef as the last arg", in, currentInstruction);
}
GroundVariable* variables = NULL;
GroundLabel* labels = NULL;
GroundScope newScope;
newScope.variables = &variables;
newScope.labels = &labels;
GroundVariable* var = findVariable(*scope->variables, in->args.args[0].value.refName);
if (var == NULL) {
runtimeError(UNKNOWN_VARIABLE, "Function not found", in, currentInstruction);
@@ -1815,15 +1783,10 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
if (in->args.args[i + 1].type != VALUE) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a Value", in, currentInstruction);
}
if (function->nativeFn) {
if (in->args.args[i + 1].value.value.type != function->args[i].type) {
runtimeError(ARG_TYPE_MISMATCH, "Mismatched function argument types", in, currentInstruction);
}
} else {
//if (in->args.args[i + 1].value.value.type != function->args[i].type) {
if (!checkFnTypes(&in->args.args[i + 1].value.value, &function->args[i])) {
runtimeError(ARG_TYPE_MISMATCH, "Mismatched function argument types", in, currentInstruction);
}
}
appendToList(&argsList, in->args.args[i + 1].value.value);
}
@@ -1845,7 +1808,6 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
}
free(argsList.values);
} else {
GroundScope newScope = copyGroundScope(&function->closure);
for (size_t i = 0; i < function->argSize; i++) {
if (in->args.args[i + 1].type != VALUE) {
runtimeError(ARG_TYPE_MISMATCH, "Expecting a Value", in, currentInstruction);
@@ -1886,23 +1848,23 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
char* envPath = getenv("GROUND_LIBS");
if (envPath) {
snprintf(path, sizeof(path), "%s/%s.grnd", envPath, libName);
snprintf(path, sizeof(path), "%s/%s", envPath, libName);
if (access(path, F_OK) == 0) found = 1;
}
if (!found) {
snprintf(path, sizeof(path), "/usr/lib/ground/%s.grnd", libName);
snprintf(path, sizeof(path), "/usr/lib/ground/%s", libName);
if (access(path, F_OK) == 0) found = 1;
}
if (!found) {
snprintf(path, sizeof(path), "./%s.grnd", libName);
snprintf(path, sizeof(path), "%s", libName);
if (access(path, F_OK) == 0) found = 1;
}
if (!found) {
char errorMsg[1100];
snprintf(errorMsg, sizeof(errorMsg), "Could not find library: %s.grnd", libName);
snprintf(errorMsg, sizeof(errorMsg), "Could not find library: %s", libName);
runtimeError(FIXME, errorMsg, in, currentInstruction);
}
@@ -1932,10 +1894,6 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
}
case EXTERN: {
#ifdef _WIN32
runtimeError(FIXME, "No Windows support for extern, sucker", in, currentInstruction);
#endif
#ifndef _WIN32
if (in->args.length < 1) {
runtimeError(TOO_FEW_ARGS, "Expecting 1 arg", in, currentInstruction);
}
@@ -1985,7 +1943,6 @@ GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scop
}
initFn(scope);
#endif
break;
}

20
src/interpreter.h
View File

@@ -1,5 +1,6 @@
#ifndef INTERPRETER_H
#define INTERPRETER_H
#define MAX_ID_LEN 64
#include "types.h"
#include "parser.h"
@@ -13,6 +14,24 @@ typedef enum GroundDebugInstructionType {
DUMP, INSPECT, EVAL, CONTINUE, EXIT, STEP, VIEW, HELP, UNKNOWN
} GroundDebugInstructionType;
typedef struct GroundLabel {
char id[MAX_ID_LEN];
int lineNum;
UT_hash_handle hh;
} GroundLabel;
typedef struct GroundVariable {
char id[MAX_ID_LEN];
GroundValue value;
UT_hash_handle hh;
} GroundVariable;
typedef struct GroundScope {
GroundLabel** labels;
GroundVariable** variables;
bool isMainScope;
} GroundScope;
typedef struct GroundDebugInstruction {
GroundDebugInstructionType type;
char* arg;
@@ -23,6 +42,7 @@ GroundFunction* parseFunction(GroundProgram* in, size_t errorOffset);
GroundValue interpretGroundProgram(GroundProgram* in, GroundScope* inScope);
GroundValue interpretGroundInstruction(GroundInstruction inst, GroundScope* scope);
void addVariable(GroundVariable **head, const char *id, GroundValue data);

69
src/main.c
View File

@@ -1,10 +1,7 @@
#include "parser.h"
#include "interpreter.h"
#include "compiler.h"
#include "types.h"
#include "serialize.h"
#include <stdio.h>
#include <string.h>
char* getFileContents(const char* filename) {
// https://stackoverflow.com/questions/3747086/reading-the-whole-text-file-into-a-char-array-in-c
@@ -43,87 +40,57 @@ char* getFileContents(const char* filename) {
}
int main(int argc, char** argv) {
/*
if (argc < 2) {
printf("Usage: ground [file]\n");
exit(1);
}
char* file = getFileContents(argv[1]);
GroundProgram program = parseFile(file);
free(file);
char* compiled = compileGroundProgram(&program);
printf("%s\n", compiled);
interpretGroundProgram(&program, NULL);
*/
if (argc < 2) {
printf("Usage: %s <file> [-c] [--compile] [-h] [--help]\n", argv[0]);
exit(1);
}
bool compile = false;
bool writeBytecode = false;
bool readBytecode = false;
char* fileName = NULL;
char* outFileName = NULL;
List groundArgs = createList();
for (int i = 1; i < argc; i++) {
if (strcmp("--compile", argv[i]) == 0 || strcmp("-c", argv[i]) == 0) {
if (writeBytecode) {
printf("Cannot choose both bytecode and compilation");
exit(1);
}
compile = true;
}
else if (strcmp("--help", argv[i]) == 0 || strcmp("-h", argv[i]) == 0) {
printf("GroundVM help\n");
printf("Usage: %s <file> [-c] [--compile] [-h] [--help] [-w <output>] [--writeBytecode <output>] [-b] [--bytecode]\n", argv[0]);
printf("Usage: %s <file> [-c] [--compile] [-h] [--help]\n", argv[0]);
printf("Options:\n");
printf(" -c or --compile: Outputs Linux x86_64 assembly instead of interpreting (WIP)\n");
printf(" -h or --help: Shows this help message\n");
printf(" -w <output> or --writebytecode <output>: Outputs binary Ground bytecode");
printf(" -b <output> or --bytecode <output>: Inputs binary Ground bytecode");
exit(0);
} else if (strcmp("--writebytecode", argv[i]) == 0 || strcmp("-w", argv[i]) == 0) {
if (compile) {
printf("Cannot choose both bytecode and compilation");
exit(1);
}
writeBytecode = true;
if (i + 1 >= argc) {
printf("Usage: %s %s <output>", argv[0], argv[i]);
exit(1);
}
i++;
outFileName = argv[i];
} else if (strcmp("--bytecode", argv[i]) == 0 || strcmp("-b", argv[i]) == 0) {
readBytecode = true;
} else {
if (fileName == NULL) {
fileName = argv[i];
} else {
appendToList(&groundArgs, createStringGroundValue(argv[i]));
}
}
}
if (fileName == NULL) {
printf("Usage: %s <file> [-c] [--compile] [-h] [--help] [-w <output>] [--writeBytecode <output>] [-b] [--bytecode]\n", argv[0]);
printf("Usage: %s <file> [-c] [--compile] [-h] [--help]\n", argv[0]);
printf("Error: No file name provided\n");
exit(1);
}
GroundProgram program;
if (readBytecode) {
deserializeProgramFromFile(fileName, &program);
} else {
char* file = getFileContents(fileName);
program = parseFile(file);
GroundProgram program = parseFile(file);
free(file);
}
if (compile) {
char* compiled = compileGroundProgram(&program);
printf("%s\n", compiled);
} else if (writeBytecode) {
serializeProgramToFile(outFileName, &program);
} else {
GroundVariable* variables = NULL;
GroundLabel* labels = NULL;
GroundScope scope;
scope.variables = &variables;
scope.labels = &labels;
scope.isMainScope = true;
addVariable(scope.variables, "CMDLINE_ARGS", createListGroundValue(groundArgs));
interpretGroundProgram(&program, &scope);
interpretGroundProgram(&program, NULL);
}
}

21
src/parser.c
View File

@@ -5,25 +5,6 @@
#include <string.h>
#include <ctype.h>
#ifdef _WIN32
size_t strnlen(const char *src, size_t n) {
size_t len = 0;
while (len < n && src[len])
len++;
return len;
}
char* strndup(const char *s, size_t n) {
size_t len = strnlen(s, n);
char *p = malloc(len + 1);
if (p) {
memcpy(p, s, len);
p[len] = '\0';
}
return p;
}
#endif
GroundProgram createGroundProgram() {
GroundProgram gp;
gp.size = 0;
@@ -178,8 +159,6 @@ static GroundInstType getInstructionType(const char* inst) {
if (strcmp(inst, "lesser") == 0) return LESSER;
if (strcmp(inst, "stoi") == 0) return STOI;
if (strcmp(inst, "stod") == 0) return STOD;
if (strcmp(inst, "ctoi") == 0) return CTOI;
if (strcmp(inst, "itoc") == 0) return ITOC;
if (strcmp(inst, "tostring") == 0) return TOSTRING;
if (strcmp(inst, "fun") == 0) return FUN;
if (strcmp(inst, "return") == 0) return RETURN;

302
src/serialize.c
View File

@@ -1,302 +0,0 @@
#include "serialize.h"
#include "types.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <inttypes.h>
static bool writeBytes(FILE* f, const void* data, size_t n) {
return fwrite(data, 1, n, f) == n;
}
static bool readBytes(FILE* f, void* data, size_t n) {
return fread(data, 1, n, f) == n;
}
/* Convenience macros for writing/reading a single typed value. */
#define WRITE(f, val) writeBytes((f), &(val), sizeof(val))
#define READ(f, val) readBytes((f), &(val), sizeof(val))
bool serializeWriteString(FILE* f, const char* s) {
if (s == NULL) {
uint32_t sentinel = UINT32_MAX;
return WRITE(f, sentinel);
}
uint32_t len = (uint32_t)strlen(s);
if (!WRITE(f, len)) return false;
if (len > 0 && !writeBytes(f, s, len)) return false;
return true;
}
char* serializeReadString(FILE* f) {
uint32_t len;
if (!READ(f, len)) return NULL;
if (len == UINT32_MAX) return NULL;
char* s = malloc(len + 1);
if (!s) return NULL;
if (len > 0 && !readBytes(f, s, len)) {
free(s);
return NULL;
}
s[len] = '\0';
return s;
}
/* -----------------------------------------------------------------------
* GroundValue
*
* Format:
* uint32_t type
* <payload depending on type>
*
* Only INT, DOUBLE, CHAR, BOOL, STRING, NONE are expected here.
* Any other type is treated as a serialization error.
* -----------------------------------------------------------------------
*/
bool serializeWriteValue(FILE* f, const GroundValue* gv) {
uint32_t type = (uint32_t)gv->type;
if (!WRITE(f, type)) return false;
switch (gv->type) {
case INT:
return WRITE(f, gv->data.intVal);
case DOUBLE:
return WRITE(f, gv->data.doubleVal);
case CHAR:
return WRITE(f, gv->data.charVal);
case BOOL:
return WRITE(f, gv->data.boolVal);
case STRING:
return serializeWriteString(f, gv->data.stringVal);
case NONE:
return true;
default:
/* LIST, FUNCTION, STRUCTVAL, CUSTOM, ERROR:
* These don't exist at serialization time. If you're hitting
* this, something has gone wrong well before we got here. */
fprintf(stderr, "serializeWriteValue: unexpected type %d\n", gv->type);
return false;
}
}
bool serializeReadValue(FILE* f, GroundValue* out) {
memset(out, 0, sizeof(*out));
uint32_t type;
if (!READ(f, type)) return false;
out->type = (GroundValueType)type;
switch (out->type) {
case INT:
return READ(f, out->data.intVal);
case DOUBLE:
return READ(f, out->data.doubleVal);
case CHAR:
return READ(f, out->data.charVal);
case BOOL:
return READ(f, out->data.boolVal);
case STRING: {
char* s = serializeReadString(f);
/* NULL is a valid encoded value (the sentinel case), but
* we only wrote non-NULL strings, so treat NULL-read as error. */
if (!s) return false;
out->data.stringVal = s;
return true;
}
case NONE:
return true;
default:
fprintf(stderr, "serializeReadValue: unexpected type %d\n", out->type);
return false;
}
}
/* -----------------------------------------------------------------------
* GroundArg
*
* Format:
* uint32_t argType
* <if VALUE> serialized GroundValue
* <otherwise> length-prefixed refName string
* -----------------------------------------------------------------------
*/
bool serializeWriteArg(FILE* f, const GroundArg* ga) {
uint32_t type = (uint32_t)ga->type;
if (!WRITE(f, type)) return false;
if (ga->type == VALUE) {
return serializeWriteValue(f, &ga->value.value);
} else {
/* VALREF, DIRREF, LINEREF, LABEL, FNREF, TYPEREF — all carry a refName */
return serializeWriteString(f, ga->value.refName);
}
}
bool serializeReadArg(FILE* f, GroundArg* out) {
memset(out, 0, sizeof(*out));
uint32_t type;
if (!READ(f, type)) return false;
out->type = (GroundArgType)type;
if (out->type == VALUE) {
return serializeReadValue(f, &out->value.value);
} else {
char* ref = serializeReadString(f);
if (!ref) return false;
out->value.refName = ref;
return true;
}
}
/* -----------------------------------------------------------------------
* GroundInstruction
*
* Format:
* uint32_t instType
* uint64_t argCount
* <argCount x serialized GroundArg>
* -----------------------------------------------------------------------
*/
bool serializeWriteInstruction(FILE* f, const GroundInstruction* gi) {
uint32_t type = (uint32_t)gi->type;
if (!WRITE(f, type)) return false;
uint64_t argc = (uint64_t)gi->args.length;
if (!WRITE(f, argc)) return false;
for (size_t i = 0; i < gi->args.length; i++) {
if (!serializeWriteArg(f, &gi->args.args[i])) return false;
}
return true;
}
bool serializeReadInstruction(FILE* f, GroundInstruction* out) {
uint32_t type;
if (!READ(f, type)) return false;
*out = createGroundInstruction((GroundInstType)type);
uint64_t argc;
if (!READ(f, argc)) return false;
for (uint64_t i = 0; i < argc; i++) {
GroundArg arg;
if (!serializeReadArg(f, &arg)) {
/* Free whatever args we've already read before bailing. */
freeGroundInstruction(out);
return false;
}
addArgToInstruction(out, arg);
}
return true;
}
/* -----------------------------------------------------------------------
* GroundProgram — top-level
*
* File layout:
* uint32_t magic (GROUND_MAGIC)
* uint32_t version (GROUND_VERSION)
* uint64_t instrCount
* <instrCount x serialized GroundInstruction>
* -----------------------------------------------------------------------
*/
bool serializeProgramToFile(const char* path, const GroundProgram* prog) {
FILE* f = fopen(path, "wb");
if (!f) {
perror("serializeProgramToFile: fopen");
return false;
}
bool ok = true;
/* Header */
uint32_t magic = GROUND_MAGIC;
uint32_t version = GROUND_VERSION;
ok = ok && WRITE(f, magic);
ok = ok && WRITE(f, version);
/* Instruction count, then instructions */
uint64_t count = (uint64_t)prog->size;
ok = ok && WRITE(f, count);
for (size_t i = 0; i < prog->size && ok; i++) {
ok = serializeWriteInstruction(f, &prog->instructions[i]);
}
if (!ok) {
fprintf(stderr, "serializeProgramToFile: write error\n");
}
fclose(f);
return ok;
}
bool deserializeProgramFromFile(const char* path, GroundProgram* out) {
memset(out, 0, sizeof(*out));
FILE* f = fopen(path, "rb");
if (!f) {
perror("deserializeProgramFromFile: fopen");
return false;
}
bool ok = true;
/* Validate header */
uint32_t magic, version;
ok = ok && READ(f, magic);
ok = ok && READ(f, version);
if (!ok || magic != GROUND_MAGIC) {
fprintf(stderr, "deserializeProgramFromFile: bad magic (got 0x%08X)\n", magic);
fclose(f);
return false;
}
if (version != GROUND_VERSION) {
fprintf(stderr, "deserializeProgramFromFile: unsupported version %u\n", version);
fclose(f);
return false;
}
/* Read instruction count */
uint64_t count;
if (!READ(f, count)) {
fclose(f);
return false;
}
out->instructions = malloc(sizeof(GroundInstruction) * count);
if (!out->instructions && count > 0) {
fprintf(stderr, "deserializeProgramFromFile: malloc failed\n");
fclose(f);
return false;
}
out->size = 0; /* incremented as we go so partial frees are safe */
for (uint64_t i = 0; i < count; i++) {
if (!serializeReadInstruction(f, &out->instructions[i])) {
fprintf(stderr, "deserializeProgramFromFile: failed at instruction %llu\n",
(unsigned long long)i);
/* Free everything successfully read so far. */
for (size_t j = 0; j < out->size; j++)
freeGroundInstruction(&out->instructions[j]);
free(out->instructions);
memset(out, 0, sizeof(*out));
fclose(f);
return false;
}
out->size++;
}
fclose(f);
return true;
}

48
src/serialize.h
View File

@@ -1,48 +0,0 @@
#ifndef SERIALIZE_H
#define SERIALIZE_H
#include <stdio.h>
#include <stdbool.h>
#include "types.h"
/*
* Magic number and version for Ground bytecode files.
* The magic bytes spell 'GRND'
*/
#define GROUND_MAGIC 0x47524E44u
#define GROUND_VERSION 1u
/*
* File header written at the start of every .grbc file.
*/
typedef struct GroundBytecodeHeader {
uint32_t magic;
uint32_t version;
} GroundBytecodeHeader;
/*
* Writes a length-prefixed UTF-8 string to (f).
* NULL is encoded as a sentinel length (UINT32_MAX).
* Returns true on success.
*/
bool serializeWriteString(FILE* f, const char* s);
char* serializeReadString(FILE* f);
bool serializeWriteValue(FILE* f, const GroundValue* gv);
bool serializeReadValue(FILE* f, GroundValue* out);
bool serializeWriteArg(FILE* f, const GroundArg* ga);
bool serializeReadArg(FILE* f, GroundArg* out);
bool serializeWriteInstruction(FILE* f, const GroundInstruction* gi);
bool serializeReadInstruction(FILE* f, GroundInstruction* out);
bool serializeProgramToFile(const char* path, const GroundProgram* prog);
bool deserializeProgramFromFile(const char* path, GroundProgram* out);
#endif

159
src/types.c
View File

@@ -2,20 +2,6 @@
#include <inttypes.h>
#include <stdlib.h>
#ifdef __EMSCRIPTEN__
static char out_buf[65536];
static int out_pos = 0;
void wasm_print(const char* str) {
int len = strlen(str);
if (out_pos + len < (int)sizeof(out_buf) - 1) {
memcpy(out_buf + out_pos, str, len);
out_pos += len;
out_buf[out_pos] = '\0';
}
}
#endif
GroundValue createIntGroundValue(int64_t in) {
GroundValue gv;
gv.data.intVal = in;
@@ -104,63 +90,16 @@ GroundValue copyGroundValue(const GroundValue* gv) {
}
case FUNCTION: newGv.data.fnVal = gv->data.fnVal; break;
case STRUCTVAL: {
newGv.data.structVal = malloc(sizeof(GroundStruct));
if (newGv.data.structVal == NULL) {
printf("Couldn't allocate memory for GroundStruct copy\n");
exit(1);
}
newGv.data.structVal->size = gv->data.structVal->size;
newGv.data.structVal->fields = malloc(gv->data.structVal->size * sizeof(GroundStructField));
if (newGv.data.structVal->fields == NULL && gv->data.structVal->size > 0) {
printf("Couldn't allocate memory for GroundStruct fields copy\n");
exit(1);
}
for (size_t i = 0; i < gv->data.structVal->size; i++) {
strncpy(newGv.data.structVal->fields[i].id,
gv->data.structVal->fields[i].id,
sizeof(newGv.data.structVal->fields[i].id) - 1);
newGv.data.structVal->fields[i].id[sizeof(newGv.data.structVal->fields[i].id) - 1] = '\0';
newGv.data.structVal->fields[i].value = copyGroundValue(&gv->data.structVal->fields[i].value);
}
// do this later lmao
// FIXME
newGv.data.structVal = gv->data.structVal;
break;
}
case CUSTOM: {
newGv.data.customVal = malloc(sizeof(GroundObject));
if (newGv.data.customVal == NULL) {
printf("Couldn't allocate memory for GroundObject copy\n");
exit(1);
}
newGv.data.customVal->fields = NULL;
// Deep copy the struct definition as well
newGv.customType = malloc(sizeof(GroundStruct));
newGv.customType->size = gv->customType->size;
newGv.customType->fields = malloc(gv->customType->size * sizeof(GroundStructField));
for (size_t i = 0; i < gv->customType->size; i++) {
strncpy(newGv.customType->fields[i].id, gv->customType->fields[i].id, 64);
newGv.customType->fields[i].value = copyGroundValue(&gv->customType->fields[i].value);
}
GroundObjectField *field, *tmp;
HASH_ITER(hh, gv->data.customVal->fields, field, tmp) {
GroundObjectField* newField = malloc(sizeof(GroundObjectField));
if (newField == NULL) {
printf("Couldn't allocate memory for GroundObjectField copy\n");
exit(1);
}
strncpy(newField->id, field->id, sizeof(newField->id) - 1);
newField->id[sizeof(newField->id) - 1] = '\0';
newField->value = copyGroundValue(&field->value);
HASH_ADD_STR(newGv.data.customVal->fields, id, newField);
}
case CUSTOM:
// also do this later
// FIXME
newGv.data.customVal = gv->data.customVal;
break;
}
case NONE:
default: {
@@ -210,47 +149,8 @@ void printGroundValue(GroundValue* gv) {
printf("<function>");
break;
}
case STRUCTVAL: {
printf("<struct fields: { ");
for (size_t i = 0; i < gv->data.structVal->size; i++) {
if (i != 0) {
printf(", ");
}
printf("%s: ", gv->data.structVal->fields[i].id);
if (gv->data.structVal->fields[i].value.type == STRING) {
printf("\"");
printGroundValue(&gv->data.structVal->fields[i].value);
printf("\"");
} else {
printGroundValue(&gv->data.structVal->fields[i].value);
}
}
printf(" }>");
break;
}
case CUSTOM: {
printf("<object fields: { ");
for (size_t i = 0; i < gv->customType->size; i++) {
if (i != 0) {
printf(", ");
}
printf("%s: ", gv->customType->fields[i].id);
GroundObjectField* field = findField(*gv->data.customVal, gv->customType->fields[i].id);
if (field == NULL) {
printf("<missing>");
} else {
printGroundValue(&field->value);
}
}
printf(" }>");
break;
}
case ERROR: {
printf("<error type: %s, what: %s>", gv->data.errorVal.type, gv->data.errorVal.what);
break;
}
case NONE: {
printf("<none>");
default: {
printf("FIXME");
break;
}
}
@@ -275,20 +175,6 @@ void freeGroundValue(GroundValue* gv) {
freeGroundStruct(gstruct);
free(gstruct);
}
if (gv->type == CUSTOM && gv->data.customVal != NULL) {
freeGroundObject(gv->data.customVal);
free(gv->data.customVal);
gv->data.customVal = NULL;
if (gv->customType != NULL) {
for (size_t i = 0; i < gv->customType->size; i++) {
freeGroundValue(&gv->customType->fields[i].value);
}
free(gv->customType->fields);
free(gv->customType);
gv->customType = NULL;
}
}
if (gv->type == ERROR) {
GroundError* error = &gv->data.errorVal;
if (error->type != NULL) {
@@ -488,12 +374,6 @@ void printGroundInstruction(GroundInstruction* gi) {
case STOD:
printf("stod");
break;
case CTOI:
printf("ctoi");
break;
case ITOC:
printf("itoc");
break;
case TOSTRING:
printf("tostring");
break;
@@ -745,24 +625,3 @@ bool checkTypes(GroundValue* left, GroundValue* right) {
}
return true;
}
GroundScope copyGroundScope(GroundScope* scope) {
GroundScope newScope = {
.labels = malloc(sizeof(GroundLabel*)),
.variables = malloc(sizeof(GroundVariable*)),
.isMainScope = false
};
*newScope.variables = NULL;
*newScope.labels = NULL;
if (scope == NULL) {
printf("oh no scope is null\n");
}
GroundVariable *var, *tmp = NULL;
HASH_ITER(hh, *scope->variables, var, tmp) {
addVariable(newScope.variables, var->id, var->value);
}
return newScope;
}

46
src/types.h
View File

@@ -8,28 +8,8 @@
#include <string.h>
#include "include/uthash.h"
#define MAX_ID_LEN 64
// If targeting WASM, define WASM specific stuff
#ifdef __EMSCRIPTEN__
#include <emscripten.h>
void wasm_print(const char* str);
#undef printf
#define printf(fmt, ...) do { \
int __needed = snprintf(NULL, 0, fmt, ##__VA_ARGS__) + 1; \
char* __buf = malloc(__needed); \
if (__buf) { \
snprintf(__buf, __needed, fmt, ##__VA_ARGS__); \
wasm_print(__buf); \
free(__buf); \
} \
} while(0)
#endif
typedef enum GroundInstType {
IF, JUMP, END, INPUT, PRINT, PRINTLN, SET, GETTYPE, EXISTS, SETLIST, SETLISTAT, GETLISTAT, GETLISTSIZE, LISTAPPEND, GETSTRSIZE, GETSTRCHARAT, ADD, SUBTRACT, MULTIPLY, DIVIDE, EQUAL, INEQUAL, NOT, GREATER, LESSER, STOI, STOD, ITOC, CTOI, TOSTRING, FUN, RETURN, ENDFUN, PUSHARG, CALL, STRUCT, ENDSTRUCT, INIT, GETFIELD, SETFIELD, USE, EXTERN, CREATELABEL, PAUSE, DROP, ERRORCMD
IF, JUMP, END, INPUT, PRINT, PRINTLN, SET, GETTYPE, EXISTS, SETLIST, SETLISTAT, GETLISTAT, GETLISTSIZE, LISTAPPEND, GETSTRSIZE, GETSTRCHARAT, ADD, SUBTRACT, MULTIPLY, DIVIDE, EQUAL, INEQUAL, NOT, GREATER, LESSER, STOI, STOD, TOSTRING, FUN, RETURN, ENDFUN, PUSHARG, CALL, STRUCT, ENDSTRUCT, INIT, GETFIELD, SETFIELD, USE, EXTERN, CREATELABEL, PAUSE, DROP, ERRORCMD
} GroundInstType;
typedef enum GroundValueType {
@@ -97,24 +77,6 @@ typedef struct GroundValue {
} data;
} GroundValue;
typedef struct GroundLabel {
char id[MAX_ID_LEN];
int lineNum;
UT_hash_handle hh;
} GroundLabel;
typedef struct GroundVariable {
char id[MAX_ID_LEN];
GroundValue value;
UT_hash_handle hh;
} GroundVariable;
typedef struct GroundScope {
GroundLabel** labels;
GroundVariable** variables;
bool isMainScope;
} GroundScope;
/*
* Indicates status when accessing a list.
* Associated functions:
@@ -183,7 +145,6 @@ typedef struct GroundFunction {
GroundProgram program;
size_t startLine;
bool isNative;
GroundScope closure;
NativeGroundFunction nativeFn;
} GroundFunction;
@@ -323,10 +284,5 @@ bool checkFnTypes(GroundValue* left, GroundFunctionArgs* arg);
// Compares types of two values.
bool checkTypes(GroundValue* left, GroundValue* right);
// Adds variable to GroundScope
void addVariable(GroundVariable **head, const char *id, GroundValue data);
// Deep copies a GroundScope
GroundScope copyGroundScope(GroundScope* scope);
#endif

27
tests/closure.grnd
View File

@@ -1,27 +0,0 @@
set &x 5
PAUSE
fun !dingle -function -int &a
PAUSE
fun !capture -int -int &b
PAUSE
add $a $b &tmp
add $tmp $x &tmp
return $tmp
endfun
return $capture
endfun
call !dingle 3 &result
PAUSE
call !result 5 &y
println $y

10
tests/convs.grnd
View File

@@ -1,11 +1,3 @@
tostring 32 &str
stoi "12" &int
stod "3.14" &dou
itoc 353 &chr
ctoi 'a' &it2
tostring 32 &int
println $str
println $int
println $dou
println $chr
println $it2

7
tests/lib.grnd
View File

@@ -1,7 +0,0 @@
fun !lib_PrintHello -int
println "Hello, world!"
return 0
endfun
println "Hello!"
println "Hello!"

2
tests/use.grnd
View File

@@ -1,2 +0,0 @@
use "lib"
call !lib_PrintHello &tmp