50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
#include <stdio.h>
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#include <string.h>
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#include "include/ast.h"
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#include "include/exec.h"
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#include "include/util.h"
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extern AST* root;
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ASTNumData exec_expr(AST* ast) {
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// ast_print(ast);
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log_dbg("Started execution.");
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switch (ast->type) {
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case AST_TYPE_CALL: return exec_call(ast);
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case AST_TYPE_NUM: return *(ASTNumData*)ast->data;
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default: printf("what\n");
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}
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}
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ASTNumData exec_call(AST* ast) {
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log_dbg("Started call execution.");
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fflush(stdout);
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ASTCallData* calldata = (ASTCallData*)ast->data;
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if (!strcmp(calldata->to, "+") && calldata->argc == 2) {
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ASTNumData n1 = exec_expr(calldata->argv[0]);
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ASTNumData n2 = exec_expr(calldata->argv[1]);
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return n1 + n2;
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} else if (!strcmp(calldata->to, "-") && calldata->argc == 2) {
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ASTNumData n1 = exec_expr(calldata->argv[0]);
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ASTNumData n2 = exec_expr(calldata->argv[1]);
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return n1 - n2;
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} else if (!strcmp(calldata->to, "*") && calldata->argc == 2) {
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ASTNumData n1 = exec_expr(calldata->argv[0]);
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ASTNumData n2 = exec_expr(calldata->argv[1]);
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return n1 * n2;
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} else if (!strcmp(calldata->to, "/") && calldata->argc == 2) {
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ASTNumData n1 = exec_expr(calldata->argv[0]);
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ASTNumData n2 = exec_expr(calldata->argv[1]);
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return n1 / n2;
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}
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return -1000;
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}
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void exec_print(double n) { printf("= %lf\n", n); }
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