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Working compiler!!

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This commit is contained in:
pjht 2018-09-09 18:08:00 -05:00
parent b94fa9d49a
commit 36270c87a4
8 changed files with 163 additions and 3 deletions
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14
cinc.xcodeproj/project.pbxproj
View File

@ -12,6 +12,8 @@
F65A954E21454B31005FCAF5 /* token.c in Sources */ = {isa = PBXBuildFile; fileRef = F65A954D21454B31005FCAF5 /* token.c */; };
F661C333214590930021FCCE /* parser.c in Sources */ = {isa = PBXBuildFile; fileRef = F661C332214590930021FCCE /* parser.c */; };
F661C3362145CE760021FCCE /* ast.c in Sources */ = {isa = PBXBuildFile; fileRef = F661C3352145CE760021FCCE /* ast.c */; };
F661C3392145D9C40021FCCE /* generate.c in Sources */ = {isa = PBXBuildFile; fileRef = F661C3382145D9C40021FCCE /* generate.c */; };
F661C33C2145DF370021FCCE /* out.s in Sources */ = {isa = PBXBuildFile; fileRef = F661C33B2145DF370021FCCE /* out.s */; };
/* End PBXBuildFile section */
/* Begin PBXCopyFilesBuildPhase section */
@ -31,12 +33,15 @@
F61910602142A876003B8798 /* main.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; path = main.c; sourceTree = "<group>"; };
F61910672142A8C5003B8798 /* tokenize.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = tokenize.h; sourceTree = "<group>"; };
F61910682142A8C5003B8798 /* tokenize.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; path = tokenize.c; sourceTree = "<group>"; };
F65A954C21454B21005FCAF5 /* token.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = token.h; path = ../../../../token.h; sourceTree = "<group>"; };
F65A954D21454B31005FCAF5 /* token.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = token.c; sourceTree = "<group>"; };
F661C331214590930021FCCE /* parser.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = parser.h; sourceTree = "<group>"; };
F661C332214590930021FCCE /* parser.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; path = parser.c; sourceTree = "<group>"; };
F661C3342145CE760021FCCE /* ast.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ast.h; sourceTree = "<group>"; };
F661C3352145CE760021FCCE /* ast.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; path = ast.c; sourceTree = "<group>"; };
F661C3372145D9C40021FCCE /* generate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = generate.h; sourceTree = "<group>"; };
F661C3382145D9C40021FCCE /* generate.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; path = generate.c; sourceTree = "<group>"; };
F661C33A2145DE300021FCCE /* token.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = token.h; sourceTree = "<group>"; };
F661C33B2145DF370021FCCE /* out.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = out.s; sourceTree = "<group>"; };
/* End PBXFileReference section */
/* Begin PBXFrameworksBuildPhase section */
@ -73,11 +78,14 @@
F61910672142A8C5003B8798 /* tokenize.h */,
F61910682142A8C5003B8798 /* tokenize.c */,
F65A954D21454B31005FCAF5 /* token.c */,
F65A954C21454B21005FCAF5 /* token.h */,
F661C33A2145DE300021FCCE /* token.h */,
F661C331214590930021FCCE /* parser.h */,
F661C332214590930021FCCE /* parser.c */,
F661C3342145CE760021FCCE /* ast.h */,
F661C3352145CE760021FCCE /* ast.c */,
F661C3372145D9C40021FCCE /* generate.h */,
F661C3382145D9C40021FCCE /* generate.c */,
F661C33B2145DF370021FCCE /* out.s */,
);
path = cinc;
sourceTree = "<group>";
@ -139,9 +147,11 @@
buildActionMask = 2147483647;
files = (
F65A954E21454B31005FCAF5 /* token.c in Sources */,
F661C33C2145DF370021FCCE /* out.s in Sources */,
F661C3362145CE760021FCCE /* ast.c in Sources */,
F61910692142A8C5003B8798 /* tokenize.c in Sources */,
F661C333214590930021FCCE /* parser.c in Sources */,
F661C3392145D9C40021FCCE /* generate.c in Sources */,
F61910612142A876003B8798 /* main.c in Sources */,
);
runOnlyForDeploymentPostprocessing = 0;

18
cinc/ast.c
View File

@ -8,7 +8,7 @@
#include "ast.h"
#include <stdlib.h>
#include <stdio.h>
#define AST_CHILDREN_START 10
AstNode* make_node(const char* data) {
@ -29,6 +29,22 @@ void add_child(AstNode* parent,AstNode* child) {
parent->num_children++;
}
void print_tree(AstNode* root,int tabLevel) {
if (tabLevel==0) {
printf("Root: %s\n",root->data);
}
if ((root->num_children)>0) {
for (int i=0;i<(root->num_children);i++) {
for (int i=0;i<tabLevel;i++) {
printf(" ");
}
printf("Child %d: ",i);
printf("%s\n",root->children[i]->data);
print_tree(root->children[i],tabLevel+1);
}
}
}
void free_tree(AstNode* root) {
if (root->children) {
for (int i=0;i<(root->num_children);i++) {

1
cinc/ast.h
View File

@ -20,6 +20,7 @@ typedef struct _astnode AstNode;
AstNode* make_node(const char* data);
void add_child(AstNode* parent,AstNode* child);
void print_tree(AstNode* root,int tabLevel);
void free_tree(AstNode* root);
#endif /* ast_h */

58
cinc/generate.c Normal file
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@ -0,0 +1,58 @@
//
// generate.c
// cinc
//
// Created by Peter Terpstra on 9/9/18.
// Copyright © 2018 Peter Terpstra. All rights reserved.
//
#include "generate.h"
#include "ast.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
static char* prg_asm;
static void generate_expr(AstNode* ast) {
const char* type=ast->data;
if(strcmp("num", type)==0) {
strncat(prg_asm, "mov rax,", 8);
strncat(prg_asm,ast->children[0]->data,strlen(ast->children[0]->data));
strncat(prg_asm, "\n", 1);
}
}
static void generate_statement(AstNode* ast) {
const char* type=ast->data;
if(strcmp("return", type)==0) {
generate_expr(ast->children[0]);
strncat(prg_asm, "ret\n", 4);
}
}
static void generate_block(AstNode* ast) {
for (int i=0;i<(ast->num_children);i++) {
generate_statement(ast->children[i]);
}
}
static void generate_func(AstNode* ast) {
const char* name=ast->children[1]->data;
strncat(prg_asm, ".globl _", 8);
strncat(prg_asm, name, strlen(name));
strncat(prg_asm, "\n_", 2);
strncat(prg_asm, name, strlen(name));
strncat(prg_asm, ":\n", 2);
generate_block(ast->children[2]);
}
char* generate_prg(AstNode* ast) {
prg_asm=malloc(sizeof(char));
prg_asm[0]=0;
generate_func(ast);
return prg_asm;
}

16
cinc/generate.h Normal file
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@ -0,0 +1,16 @@
//
// generate.h
// cinc
//
// Created by Peter Terpstra on 9/9/18.
// Copyright © 2018 Peter Terpstra. All rights reserved.
//
#ifndef generate_h
#define generate_h
#include "ast.h"
char* generate_prg(AstNode* ast);
#endif /* generate_h */

7
cinc/main.c
View File

@ -12,10 +12,17 @@
#include "tokenize.h"
#include "ast.h"
#include "parser.h"
#include "generate.h"
int main(int argc, const char * argv[]) {
char* prgstr="int main() {\nreturn 0;\n}";
Token* tokens=tokenize(prgstr);
AstNode* ast=parse(tokens);
free_toklist(tokens);
char* prg=generate_prg(ast);
free_tree(ast);
FILE* outfile=fopen("/Users/peterterpstra/Desktop/projects/xcode/cinc/cinc/out.s","w");
fputs(prg, outfile);
fclose(outfile);
free(prg);
}

4
cinc/out.s Normal file
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@ -0,0 +1,4 @@
.globl _main
_main:
mov rax,0
ret

48
cinc/token.h Normal file
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@ -0,0 +1,48 @@
//
// token.h
// cinc
//
// Created by Peter Terpstra on 9/7/18.
// Copyright © 2018 Peter Terpstra. All rights reserved.
//
#ifndef token_h
#define token_h
#include <stdbool.h>
typedef enum {
intval,
strval
} TokenValType;
typedef struct {
TokenValType type;
bool constflag;
union {
int intval;
char* strval;
};
} TokenVal;
#define TYPE_IDENT 128
#define TYPE_NUM 129
#define TYPE_EOF 130
#define TYPE_RETURN 131
#define TYPE_TYPE 132
struct _token {
unsigned char type;
TokenVal* val;
struct _token* next;
};
typedef struct _token Token;
Token* new_token(unsigned char type,TokenVal* val, Token* prev);
void print_tok(Token* tok);
TokenVal* val_from_int(int val);
TokenVal* val_from_const_str(const char* val);
TokenVal* val_from_str(char* val);
#endif /* token_h */