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Added simple assignment, read more

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I was coding earlier this week, but my brain was so foggy I ended up not
knowing what I was doing. After a few days break, I've cleaned up the
mess, which took hours.

Changes:
* Variables can be assigned
* Added new value types as placeholders
* Added 'compare' and 'assign' to the AST
* Added duplicate opcode
* Added functions to copy and free values
* Max name length is 255 chars
* Compound assigns are squeezed into one word

To be completed:

* Tests for this commit's changes
* Compound assignments
* Variable access
This commit is contained in:
Kayne Ruse
2024-10-25 22:48:24 +11:00
parent 5b17c5e1e9
commit 3148a56ce0
17 changed files with 653 additions and 182 deletions
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71
source/toy_ast.h
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@@ -13,11 +13,13 @@ typedef enum Toy_AstType {
TOY_AST_VALUE,
TOY_AST_UNARY,
TOY_AST_BINARY,
TOY_AST_COMPARE,
TOY_AST_GROUP,
TOY_AST_PRINT,
TOY_AST_VAR_DECLARE,
TOY_AST_VAR_ASSIGN,
TOY_AST_PASS,
TOY_AST_ERROR,
@@ -26,34 +28,37 @@ typedef enum Toy_AstType {
//flags are handled differently by different types
typedef enum Toy_AstFlag {
TOY_AST_FLAG_NONE,
TOY_AST_FLAG_NONE = 0,
//binary flags
TOY_AST_FLAG_ADD,
TOY_AST_FLAG_SUBTRACT,
TOY_AST_FLAG_MULTIPLY,
TOY_AST_FLAG_DIVIDE,
TOY_AST_FLAG_MODULO,
TOY_AST_FLAG_ASSIGN,
TOY_AST_FLAG_ADD_ASSIGN,
TOY_AST_FLAG_SUBTRACT_ASSIGN,
TOY_AST_FLAG_MULTIPLY_ASSIGN,
TOY_AST_FLAG_DIVIDE_ASSIGN,
TOY_AST_FLAG_MODULO_ASSIGN,
TOY_AST_FLAG_COMPARE_EQUAL,
TOY_AST_FLAG_COMPARE_NOT,
TOY_AST_FLAG_COMPARE_LESS,
TOY_AST_FLAG_COMPARE_LESS_EQUAL,
TOY_AST_FLAG_COMPARE_GREATER,
TOY_AST_FLAG_COMPARE_GREATER_EQUAL,
TOY_AST_FLAG_AND,
TOY_AST_FLAG_OR,
TOY_AST_FLAG_CONCAT,
TOY_AST_FLAG_ADD = 1,
TOY_AST_FLAG_SUBTRACT = 2,
TOY_AST_FLAG_MULTIPLY = 3,
TOY_AST_FLAG_DIVIDE = 4,
TOY_AST_FLAG_MODULO = 5,
TOY_AST_FLAG_ASSIGN = 10,
TOY_AST_FLAG_ADD_ASSIGN = 11,
TOY_AST_FLAG_SUBTRACT_ASSIGN = 12,
TOY_AST_FLAG_MULTIPLY_ASSIGN = 13,
TOY_AST_FLAG_DIVIDE_ASSIGN = 14,
TOY_AST_FLAG_MODULO_ASSIGN = 15,
TOY_AST_FLAG_COMPARE_EQUAL = 20,
TOY_AST_FLAG_COMPARE_NOT = 21,
TOY_AST_FLAG_COMPARE_LESS = 22,
TOY_AST_FLAG_COMPARE_LESS_EQUAL = 23,
TOY_AST_FLAG_COMPARE_GREATER = 24,
TOY_AST_FLAG_COMPARE_GREATER_EQUAL = 25,
TOY_AST_FLAG_AND = 30,
TOY_AST_FLAG_OR = 31,
TOY_AST_FLAG_CONCAT = 32,
//unary flags
TOY_AST_FLAG_NEGATE,
TOY_AST_FLAG_INCREMENT,
TOY_AST_FLAG_DECREMENT,
TOY_AST_FLAG_NEGATE = 33,
TOY_AST_FLAG_INCREMENT = 34,
TOY_AST_FLAG_DECREMENT = 35,
// TOY_AST_FLAG_TERNARY,
} Toy_AstFlag;
@@ -86,6 +91,13 @@ typedef struct Toy_AstBinary {
Toy_Ast* right;
} Toy_AstBinary;
typedef struct Toy_AstCompare {
Toy_AstType type;
Toy_AstFlag flag;
Toy_Ast* left;
Toy_Ast* right;
} Toy_AstCompare;
typedef struct Toy_AstGroup {
Toy_AstType type;
Toy_Ast* child;
@@ -102,6 +114,13 @@ typedef struct Toy_AstVarDeclare {
Toy_Ast* expr;
} Toy_AstVarDeclare;
typedef struct Toy_AstVarAssign {
Toy_AstType type;
Toy_AstFlag flag;
Toy_String* name;
Toy_Ast* expr;
} Toy_AstVarAssign;
typedef struct Toy_AstPass {
Toy_AstType type;
} Toy_AstPass;
@@ -120,9 +139,11 @@ union Toy_Ast { //32 | 64 BITNESS
Toy_AstValue value; //12 | 24
Toy_AstUnary unary; //12 | 16
Toy_AstBinary binary; //16 | 24
Toy_AstCompare compare; //16 | 24
Toy_AstGroup group; //8 | 16
Toy_AstPrint print; //8 | 16
Toy_AstVarDeclare varDeclare; //16 | 24
Toy_AstVarAssign varAssign; //16 | 24
Toy_AstPass pass; //4 | 4
Toy_AstError error; //4 | 4
Toy_AstEnd end; //4 | 4
@@ -134,11 +155,13 @@ void Toy_private_appendAstBlock(Toy_Bucket** bucketHandle, Toy_Ast* block, Toy_A
void Toy_private_emitAstValue(Toy_Bucket** bucketHandle, Toy_Ast** astHandle, Toy_Value value);
void Toy_private_emitAstUnary(Toy_Bucket** bucketHandle, Toy_Ast** astHandle, Toy_AstFlag flag);
void Toy_private_emitAstBinary(Toy_Bucket** bucketHandle, Toy_Ast** astHandle,Toy_AstFlag flag, Toy_Ast* right);
void Toy_private_emitAstCompare(Toy_Bucket** bucketHandle, Toy_Ast** astHandle,Toy_AstFlag flag, Toy_Ast* right);
void Toy_private_emitAstGroup(Toy_Bucket** bucketHandle, Toy_Ast** astHandle);
void Toy_private_emitAstPrint(Toy_Bucket** bucketHandle, Toy_Ast** astHandle);
void Toy_private_emitAstVariableDeclaration(Toy_Bucket** bucketHandle, Toy_Ast** astHandle, Toy_String* name, Toy_Ast* expr);
void Toy_private_emitAstVariableAssignment(Toy_Bucket** bucketHandle, Toy_Ast** astHandle, Toy_String* name, Toy_AstFlag flag, Toy_Ast* expr);
void Toy_private_emitAstPass(Toy_Bucket** bucketHandle, Toy_Ast** astHandle);
void Toy_private_emitAstError(Toy_Bucket** bucketHandle, Toy_Ast** astHandle);