92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
#ifndef WRAITH_STACK_H
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#define WRAITH_STACK_H
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#include <stdint.h>
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#include "ast.h"
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typedef struct StackFrame
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{
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Node **statements;
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uint32_t statementCount;
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uint32_t statementCapacity;
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Node **declarations;
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uint32_t declarationCount;
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uint32_t declarationCapacity;
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} StackFrame;
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typedef struct Stack
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{
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StackFrame *stackFrames;
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uint32_t stackCapacity;
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uint32_t stackIndex;
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} Stack;
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Stack* CreateStack()
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{
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Stack *stack = (Stack*) malloc(sizeof(Stack));
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stack->stackCapacity = 4;
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stack->stackFrames = (StackFrame*) malloc(sizeof(StackFrame) * stack->stackCapacity);
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stack->stackIndex = 0;
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return stack;
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}
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void PushStackFrame(Stack *stack)
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{
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stack->stackIndex += 1;
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if (stack->stackIndex == stack->stackCapacity)
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{
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stack->stackCapacity += 1;
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stack->stackFrames = (StackFrame*) realloc(stack->stackFrames, sizeof(StackFrame) * stack->stackCapacity);
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stack->stackFrames[stack->stackIndex].statementCapacity = 0;
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stack->stackFrames[stack->stackIndex].declarationCapacity = 0;
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}
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stack->stackFrames[stack->stackIndex].statementCount = 0;
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stack->stackFrames[stack->stackIndex].declarationCount = 0;
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}
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void PopStackFrame(Stack *stack)
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{
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stack->stackIndex -= 1;
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}
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void AddStatement(Stack *stack, Node *statementNode)
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{
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StackFrame *stackFrame = &stack->stackFrames[stack->stackIndex];
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if (stackFrame->statementCount == stackFrame->statementCapacity)
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{
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stackFrame->statementCapacity += 1;
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stackFrame->statements = (Node**) realloc(stackFrame->statements, stackFrame->statementCapacity);
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}
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stackFrame->statements[stackFrame->statementCount] = statementNode;
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stackFrame->statementCount += 1;
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}
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Node** GetStatements(Stack *stack, uint32_t *pCount)
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{
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*pCount = stack->stackFrames[stack->stackIndex].statementCount;
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return stack->stackFrames[stack->stackIndex].statements;
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}
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void AddDeclaration(Stack *stack, Node *declarationNode)
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{
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StackFrame *stackFrame = &stack->stackFrames[stack->stackIndex];
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if (stackFrame->declarationCount == stackFrame->declarationCapacity)
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{
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stackFrame->declarationCapacity += 1;
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stackFrame->declarations = (Node**) realloc(stackFrame->declarations, stackFrame->declarationCapacity);
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}
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stackFrame->declarations[stackFrame->declarationCount] = declarationNode;
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stackFrame->declarationCount += 1;
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}
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Node** GetDeclarations(Stack *stack, uint32_t *pCount)
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{
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*pCount = stack->stackFrames[stack->stackIndex].declarationCount;
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return stack->stackFrames[stack->stackIndex].declarations;
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}
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#endif /* WRAITH_STACK_H */ |