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Add code for printing the AST tree after generation

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This commit is contained in:
Curle 2020-11-15 06:36:25 +00:00
parent 764f89bb88
commit d8abe6fec0
Signed by: TheCurle
GPG Key ID: 2F2E62F0DA69A5AE
2 changed files with 105 additions and 5 deletions
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15
include/Defs.h
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@ -27,6 +27,7 @@
enum TokenTypes {
LI_EOF,
LI_EQUAL, // =
AR_PLUS, // Arithmetic +
AR_MINUS, // Arithmetic -
@ -40,7 +41,6 @@ enum TokenTypes {
CMP_LTE, // <=
CMP_GTE, // =>
LI_EQUAL, // =
LI_INT, // Integer literal
LI_SEMIC, // ;
@ -84,7 +84,8 @@ enum TokenTypes {
*/
enum SyntaxOps {
OP_ADD = 1, // Add two numbers.
OP_ASSIGN = 1, // Assign an l-value
OP_ADD, // Add two numbers.
OP_SUBTRACT, // Subtract two numbers.
OP_MULTIPLY, // Multiply two numbers.
OP_DIVIDE, // Divide two numbers.
@ -96,7 +97,6 @@ enum SyntaxOps {
OP_LESSE, // Less than or Equal to?
OP_GREATE, // Greater than or Equal to?
OP_ASSIGN, // Assign an l-value
OP_ADDRESS, // Fetch the address of a var
OP_DEREF, // Get the value of the address in a pointer
@ -104,7 +104,6 @@ enum SyntaxOps {
TERM_INTLITERAL, // Integer Literal. This is a virtual operation, so it's a terminal.
REF_IDENT, // Reference (read) an identifier (variable).
LV_IDENT, // Write an identifier in the form of an l-value.
OP_WIDEN, // Something contains a type that needs to be casted up
OP_SCALE, // We have a pointer that needs to be scaled!
@ -125,6 +124,7 @@ enum SyntaxOps {
struct ASTNode {
int Operation; // SyntaxOps Index
int ExprType; // Value->IntValue's DataType
int RVal; // True if this node is an Rval, false if Lval
struct ASTNode* Left;
struct ASTNode* Middle;
struct ASTNode* Right;
@ -307,7 +307,9 @@ int AsDiv(int Left, int Right);
int AsLdVar(int ID);
int AsStrVar(int Register, int ID);
int AsDeref(int Reg, int Type);
int AsStrDeref(int Register1, int Register2, int Type);
int AsAddr(int ID);
void AsNewSymb(int ID);
@ -350,4 +352,7 @@ struct ASTNode* ParseIdentifier(void);
struct ASTNode* IfStatement();
struct ASTNode* WhileStatement();
struct ASTNode* ForStatement();
struct ASTNode* ForStatement();
void DumpTree(struct ASTNode* node, int level);

95
src/Dump.c Normal file
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@ -0,0 +1,95 @@
/*************/
/*GEMWIRE */
/* ERYTHRO*/
/*************/
#include <Defs.h>
#include <Data.h>
static int GenerateSrg() {
static int srgId = 1;
return srgId++;
}
void DumpTree(struct ASTNode* node, int level) {
int Lfalse, Lstart, Lend;
// Handle weirdo loops and conditions first.
switch(node->Operation) {
case OP_IF:
Lfalse = GenerateSrg();
for(int i = 0; i < level; i++)
fprintf(stdout, " ");
fprintf(stdout, "IF");
if(node->Right) {
Lend = GenerateSrg();
fprintf(stdout, ", end label %d", Lend);
}
fprintf(stdout, "\n");
DumpTree(node->Left, level + 2);
DumpTree(node->Middle, level + 2);
if(node->Right)
DumpTree(node->Right, level + 2);
return;
case OP_LOOP:
Lstart = GenerateSrg();
for(int i = 0; i < level; i++)
fprintf(stdout, " ");
fprintf(stdout, "LOOP starts at %d\n", Lstart);
Lend = GenerateSrg();
DumpTree(node->Left, level + 2);
DumpTree(node->Right, level + 2);
return;
}
// If current node is a compound, we treat it as if we didn't just enter a loop.
if(node->Operation == OP_COMP)
level = -2;
if(node->Left)
DumpTree(node->Left, level + 2);
if(node->Right)
DumpTree(node->Right, level + 2);
// The meat of this operation!
for(int i = 0; i < level; i++)
fprintf(stdout, " ");
switch (node->Operation){
case OP_COMP: fprintf(stdout, "\n\n"); return;
case OP_FUNC: fprintf(stdout, "OP_FUNC %s\n", Symbols[node->Value.ID].Name); return;
case OP_ADD: fprintf(stdout, "OP_ADD\n"); return;
case OP_SUBTRACT: fprintf(stdout, "OP_SUBTRACT\n"); return;
case OP_MULTIPLY: fprintf(stdout, "OP_MULTIPLY\n"); return;
case OP_DIVIDE: fprintf(stdout, "OP_DIVIDE\n"); return;
case OP_EQUAL: fprintf(stdout, "OP_EQUAL\n"); return;
case OP_INEQ: fprintf(stdout, "OP_INEQ\n"); return;
case OP_LESS: fprintf(stdout, "OP_LESS\n"); return;
case OP_GREAT: fprintf(stdout, "OP_GREAT\n"); return;
case OP_LESSE: fprintf(stdout, "OP_LESSE\n"); return;
case OP_GREATE: fprintf(stdout, "OP_GREATE\n"); return;
case TERM_INTLITERAL: fprintf(stdout, "TERM_INTLITERAL %d\n", node->Value.IntValue); return;
case REF_IDENT:
if(node->Right)
fprintf(stdout, "REF_IDENT rval %s\n", Symbols[node->Value.ID].Name);
else
fprintf(stdout, "REF_IDENT %s\n", Symbols[node->Value.ID].Name);
return;
case OP_ASSIGN: fprintf(stdout, "OP_ASSIGN\n"); return;
case OP_WIDEN: fprintf(stdout, "OP_WIDEN\n"); return;
case OP_RET: fprintf(stdout, "OP_RET\n"); return;
case OP_CALL: fprintf(stdout, "OP_CALL %s\n", Symbols[node->Value.ID].Name); return;
case OP_ADDRESS: fprintf(stdout, "OP_ADDRESS %s\n", Symbols[node->Value.ID].Name); return;
case OP_DEREF: fprintf(stdout, "OP_DEREF\n"); return;
case OP_SCALE: fprintf(stdout, "OP_SCALE %d\n", Symbols[node->Value.Size]); return;
default:
DieDecimal("Unknown Dump Operator", node->Operation);
}
}